CLINICAL PHARMACOLOGY SECTION.

12 CLINICAL PHARMACOLOGY. 12.1 Mechanism of Action. Sacituzumab govitecan-hziy is Trop-2-directed antibody-drug conjugate. Sacituzumab is humanized antibody that recognizes Trop-2. The small molecule, SN-38, is topoisomerase inhibitor, which is covalently attached to the antibody by linker. Pharmacology data suggest that sacituzumab govitecan-hziy binds to Trop-2-expressing cancer cells and is internalized with the subsequent release of SN-38 via hydrolysis of the linker. SN-38 interacts with topoisomerase and prevents re-ligation of topoisomerase I-induced single strand breaks. The resulting DNA damage leads to apoptosis and cell death. Sacituzumab govitecan-hziy decreased tumor growth in mouse xenograft models of triple-negative breast cancer. 12.2 Pharmacodynamics. The TRODELVY exposure-response relationships and pharmacodynamic time course for efficacy have not been fully characterized.. Cardiac electrophysiologyThe maximum mean change from baseline was 9.7 msec (the upper bound of the two-sided 90% confidence interval is 16.8 msec) at the recommended dose. positive exposure-response relationship was observed between QTc increases and SN-38 concentrations.. 12.3 Pharmacokinetics. The serum pharmacokinetics of sacituzumab govitecan-hziy and SN-38 were evaluated in study IMMU132-05 in population of mTNBC patients who received sacituzumab govitecan-hziy as single agent at dose of 10 mg/kg. The pharmacokinetic parameters of sacituzumab govitecan-hziy and free SN-38 are presented in Table 8. Table 8: Summary of Mean PK Parameters (CV%) of Sacituzumab Govitecan-hziy and Free SN-38 Sacituzumab govitecan-hziyFree SN-38Cmax: maximum plasma concentrationAUC0-168: area under plasma concentration curve through 168 hoursCmax [ng/mL]240000 (22.2%)90.6 (65.0%)AUC0-168 [ngh/mL]5340000 (23.7%)2730 (41.1%). DistributionBased on population pharmacokinetic analysis, the central volume distribution of sacituzumab govetican-hziy is 2.96 L.. EliminationThe mean half-life of sacituzumab govitecan-hziy and free SN-38 is 15.3 and 19.7 hours, respectively. Based on population pharmacokinetic analysis, the clearance of the sacituzumab govitecan-hziy is 0.14 L/h.. MetabolismNo metabolism studies with sacituzumab govitecan-hziy have been conducted. SN-38 (the small molecule moiety of sacituzumab govitecan-hziy) is metabolized via UGT1A1. The glucuronide metabolite of SN-38 (SN-38G) was detectable in the serum of patients.. Specific PopulationsPharmacokinetic analyses in patients treated with TRODELVY (n=658) did not identify an effect of age, race, or mild renal impairment on the pharmacokinetics of sacituzumab govitecan-hziy. Renal elimination is known to contribute minimally to the excretion of SN-38, the small molecule moiety of sacituzumab govitecan-hziy. There are no data on the pharmacokinetics of sacituzumab govitecan-hziy in patients with moderate renal impairment or end-stage renal disease (CLcr <= 30 mL/min).The exposure of sacituzumab govitecan-hziy is similar in patients with mild hepatic impairment (bilirubin <=ULN and AST ULN, or bilirubin >1.0 to <1.5 ULN and AST of any level; n=127) to patients with normal hepatic function (bilirubin or AST ULN; n=529).Sacituzumab govitecan-hziy exposure is unknown in patients with moderate or severe hepatic impairment. SN-38 exposure may be elevated in such patients due to decreased hepatic UGT1A1 activity.. Drug Interaction StudiesNo drug-drug interaction studies were conducted with sacituzumab govitecan-hziy or its components. Inhibitors or inducers of UGT1A1 are expected to increase or decrease SN-38 exposure, respectively [see Drug Interactions (7)].. 12.5 Pharmacogenomics. SN-38 is metabolized via UGT1A1 [see Clinical Pharmacology (12.3) ]. Genetic variants of the UGT1A1 gene such as the UGT1A128 allele lead to reduced UGT1A1 enzyme activity. Individuals who are homozygous for the UGT1A128 allele are at increased risk for neutropenia, febrile neutropenia, and anemia from TRODELVY [see Warnings and Precautions (5.5)]. Approximately 20% of the Black or African American population, 10% of the White population, and 2% of the East Asian population are homozygous for the UGT1A128 allele. Decreased function alleles other than UGT1A128 may be present in certain populations.

CLINICAL STUDIES SECTION.

14 CLINICAL STUDIES. 14.1 Locally Advanced or Metastatic Triple-Negative Breast Cancer. ASCENTEfficacy was evaluated in multicenter, open-label, randomized study (ASCENT; NCT02574455) conducted in 529 patients with unresectable locally advanced or metastatic triple-negative breast cancer (mTNBC) who had relapsed after at least two prior chemotherapies for breast cancer (one of which could be in the neoadjuvant or adjuvant setting provided progression occurred within 12 month period). All patients received previous taxane treatment in either the adjuvant, neoadjuvant, or advanced stage unless there was contraindication or intolerance to taxanes during or at the end of the first taxane cycle. Magnetic resonance imaging (MRI) to determine brain metastases was required prior to enrollment for patients with known or suspected brain metastases. Patients with brain metastases were allowed to enroll up to pre-defined maximum of 15% of patients in the ASCENT trial. Patients with known Gilberts disease or bone-only disease were excluded.Patients were randomized (1:1) to receive TRODELVY 10 mg/kg as an intravenous infusion on Days and of 21-day (n=267) or physicians choice of single agent chemotherapy (n=262). Single agent chemotherapy was determined by the investigator before randomization from one of the following choices: eribulin (n=139), capecitabine (n=33), gemcitabine (n=38), or vinorelbine (n=52).Patients were treated until disease progression or unacceptable toxicity. The major efficacy outcome was progression-free survival (PFS) in patients without brain metastases at baseline (i.e., BMNeg) as measured by blinded, independent, centralized review assessed using Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 criteria. Additional efficacy measures included PFS for the full population (all patients with and without brain metastases) and overall survival (OS).The median age of patients in the full population (n 529) was 54 years (range: 27-82 years); 99.6% were female; 79% were White, 12% were Black/African American; and 81% of patients were 65 years of age. All patients had an ECOG performance status of (43%) or (57%). Forty-two percent of patients had hepatic metastases, 9% were BRCA1/BRCA2 mutational status positive, and 70% were TNBC at diagnosis. Twelve percent had baseline brain metastases previously treated and stable (n=61; 32 on TRODELVY arm and 29 on single agent chemotherapy arm). Overall, 29% of patients had received prior PD-1/PD-L1 therapy. Thirteen percent of patients in the TRODELVY group in the full population received only prior line of systemic therapy in the metastatic setting.The efficacy results are summarized in Table and are shown in Figure and Figure 2. Efficacy results for the subgroup of patients who had received only prior line of systemic therapy in the metastatic setting (in addition to having disease recurrence or progression within 12 months of neoadjuvant/adjvuant systemic therapy) were consistent with those who had received at least two prior lines in the metastatic setting.Table 9: Efficacy Results from ASCENTAll Randomized PatientsTRODELVYn=267Single Agent Chemotherapyn=262CI Confidence IntervalProgression-Free SurvivalPFS is defined as the time from the date of randomization to the date of the first radiological disease progression or death due to any cause, whichever comes first. per BICRDisease Progression or Death (%)190 (71%)171 (65%)Median PFS in months (95% CI)4.8(4.1, 5.8)1.7(1.5, 2.5) Hazard ratioStratified log-rank test adjusted for stratification factors: number of prior chemotherapies, presence of known brain metastases at study entry, and region. (95% CI)0.43 (0.35, 0.54) p-value<0.0001Overall SurvivalDeaths (%)179 (67%)206 (79%)Median OS in months (95% CI)11.8(10.5, 13.8)6.9(5.9, 7.6) Hazard ratio (95% CI)0.51 (0.41, 0.62) p-value<0.0001Figure 1: Kaplan-Meier Plot of PFS by BICR (All Randomized Patients) in ASCENTFigure 2: Kaplan-Meier Plot of OS (All Randomized Patients) in ASCENTAn exploratory analysis of PFS in patients with previously treated, stable brain metastases showed stratified HR of 0.65 (95% CI: 0.35, 1.22). The median PFS in the TRODELVY arm was 2.8 months (95% CI: 1.5, 3.9) and the median PFS with single agent chemotherapy was 1.6 months (95% CI: 1.3, 2.9). Exploratory OS analysis in the same population showed stratified HR of 0.87 (95% CI: 0.47, 1.63). The median OS in the TRODELVY arm was 6.8 months (95% CI: 4.7, 14.1) and the median OS with single agent chemotherapy was 7.4 months (95% CI: 4.7, 11.1).. Figure 1. Figure 2. IMMU-132-01The efficacy of TRODELVY was evaluated in multicenter, single-arm, trial (NCT01631552) that enrolled 108 patients with metastatic triple-negative breast cancer (mTNBC) who had received at least two prior treatments for metastatic disease. Patients with bulky disease, defined as mass >7 cm, were not eligible. Patients with treated brain metastases not receiving high dose steroids (>20 mg prednisone or equivalent) for at least four weeks were eligible. Patients with known Gilberts disease were excluded.Patients received TRODELVY 10 mg/kg intravenously on Days and of 21-day treatment cycle. Patients were treated with TRODELVY until disease progression or intolerance to the therapy. Tumor imaging was obtained every weeks, with confirmatory CT/MRI scans obtained 4-6 weeks after an initial partial or complete response, until progression requiring treatment discontinuation. Major efficacy outcome measures were investigator assessed overall response rate (ORR) using RECIST 1.1 and duration of response.The median age was 55 years (range: 31 80 years); 87% of patients were younger than 65 years. The majority of patients were female (99%) and White (76%). At study entry, all patients had an ECOG performance status of (29%) or (71%). Seventy-six percent had visceral disease, 42% had hepatic metastases, 56% had lung/pleura metastases, and 2% had brain metastases. Twelve patients (11%) had Stage IV disease at the time of initial diagnosis.The median number of prior systemic therapies received in the metastatic setting was (range: - 10). Prior chemotherapies in the metastatic setting included carboplatin or cisplatin (69%), gemcitabine (55%), paclitaxel or docetaxel (53%), capecitabine (51%), eribulin (45%), doxorubicin (24%), vinorelbine (16%), cyclophosphamide (19%), and ixabepilone (8%).Overall, 98% of patients had received prior taxanes and 86% had received prior anthracyclines either in the (neo)adjuvant or metastatic setting.Table 10 summarizes the efficacy results.Table 10: Efficacy results for patients with mTNBC in IMMU-132-01TRODELVY(N=108)CI: confidence interval+: denotes ongoingOverall Response Rate investigator assessment ORR (95% CI)33.3% (24.6, 43.1) Complete response2.8% Partial response30.6%Response duration Number of responders36 Median, Months (95% CI)7.7 (4.9, 10.8) Range, Months1.9+, 30.4+ with duration >=6 months55.6% with duration >=12 months16.7%. 14.2 Locally Advanced or Metastatic Urothelial Cancer. The efficacy of TRODELVY was evaluated in TROPHY (IMMU-132-06; NCT03547973), an single-arm, multicenter trial that enrolled 112 patients with locally advanced or mUC who have received prior treatment with platinum-containing chemotherapy and either PD-1 or PD-L1 inhibitor. Patients were administered TRODELVY 10 mg/kg as an intravenous infusion on Days and of 21-day treatment cycle. Prior to the administration of TRODELVY, all patients were treated for prevention of chemotherapy induced nausea, vomiting and infusion reactions. Patients were treated until disease progression or unacceptable toxicity.The median age was 66 years (range: 33 to 90 years), 78% were male, 74% were White, 3% Asian, 3% Black and 20% unknown. All patients had baseline Eastern Cooperative Oncology Group (ECOG) performance status of (28%) or (72%). Ninety-six percent of patients had metastatic disease; 67% of patients had visceral metastases, including 34% with liver metastases.The median number of prior systemic therapies was (range: to 8). Sixty-five percent of patients received prior cisplatin, 21% received prior carboplatin, 13% received both prior cisplatin and carboplatin, and 100% received prior PD-1 or PD-L1 inhibitor. For 34% of patients, the platinum-containing chemotherapy was received in the neoadjuvant/adjuvant setting only. Nine percent of patients received prior enfortumab vedotin.The major efficacy outcome measures were the objective response rate (ORR) and duration of response (DOR), evaluated by Independent Review Assessment, using Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 criteria. Table 11 summarizes the efficacy results.Table 11: Efficacy results for patients with locally advanced or mUC in TROPHY TRODELVY(N=112)CI: confidence interval+: denotes ongoingOverall Response Rate by independent review assessment ORR (95% CI)27.7% (19.6, 36.9) Complete response5.4% Partial response22.3%Response duration Number of responders31 Median, Months (95% CI)7.2 (4.7, 8.6) Range, Months1.4+, 13.7.

CLINICAL TRIALS EXPERIENCE SECTION.

6.1 Clinical Trials Experience. Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.The pooled safety population described in the Warnings and Precautions section reflect exposure to TRODELVY as single agent in 795 patients from three studies, IMMU-132-01, IMMU-132-05 and IMMU-132-06 which included 366 patients with mTNBC who had received prior systemic chemotherapy for advanced disease and 180 patients with mUC. TRODELVY was administered as an intravenous infusion once weekly on Days and of 21-day treatment cycles at doses of 10 mg/kg until disease progression or unacceptable toxicity. Among the 795 patients treated with TRODELVY, the median duration of treatment was 4.1 months (range: to 59 months). In this pooled safety population, the most common (>= 25%) adverse reactions were neutropenia (61%), nausea (66%), diarrhea (65%), fatigue (62%), alopecia (45%), anemia (42%), vomiting (39%), constipation (37%), decreased appetite (34%), rash (32%) and abdominal pain (28%).. Metastatic Triple-Negative Breast Cancer. ASCENT StudyThe safety of TRODELVY was evaluated in randomized, active-controlled, open-label trial (ASCENT) in patients with mTNBC who had previously received taxane and at least two prior therapies. Patients were randomized (1:1) to receive either TRODELVY (n=258) or single agent chemotherapy (n=224) and were treated until disease progression or unacceptable toxicity [see Clinical Studies (14.1)]. For patients treated with TRODELVY, the median duration of treatment was 4.4 months (range: to 23 months).Serious adverse reactions occurred in 27% of patients receiving TRODELVY. Serious adverse reactions in 1% of patients receiving TRODELVY included neutropenia (7%), diarrhea (4%), and pneumonia (3%). Fatal adverse reactions occurred in 1.2% of patients who received TRODELVY, including respiratory failure (0.8%) and pneumonia (0.4%). TRODELVY was permanently discontinued for adverse reactions in 5% of patients. Adverse reactions leading to permanent discontinuation in >= % of patients who received TRODELVY were pneumonia (1%) and fatigue (1%).Adverse reactions leading to treatment interruption of TRODELVY occurred in 63% of patients. The most frequent (>=5%) adverse reactions leading to treatment interruption were neutropenia (47%), diarrhea (5%), respiratory infection (5%), and leukopenia (5%).Adverse reactions leading to dose reduction of TRODELVY occurred in 22% of patients. The most frequent (>4%) adverse reactions leading to dose reduction were neutropenia (11%) and diarrhea (5%).Granulocyte-colony stimulating factor (G-CSF) was used in 44% of patients who received TRODELVY.Tables and summarize adverse reactions and select laboratory abnormalities, respectively, in the ASCENT study.Table 2: Adverse Reactions in >=10% of Patients with mTNBC in ASCENTTRODELVY (n=258)Single Agent Chemotherapy (n=224)Adverse ReactionAll Grades%Grade - 4%All Grades%Grade - 4%Single agent chemotherapy included one of the following single-agents: eribulin (n=139), capecitabine (n=33), gemcitabine (n=38), or vinorelbine (except if patient had >=Grade neuropathy, n=52).Graded per NCI CTCAE v.5.0.Blood and lymphatic system disordersNeutropenia Including neutropenia and neutrophil count decreased 64524434AnemiaIncluding anemia, hemoglobin decreased, and red blood cell count decreased 409286LeukopeniaIncluding leukopenia and white blood cell count decreased 1711126LymphopeniaIncluding lymphopenia and lymphocyte count decreased 10262Gastrointestinal disordersDiarrhea5911171Nausea573260.4Vomiting332161Constipation370.4230Abdominal Pain303121StomatitisIncluding stomatitis, glossitis, mouth ulceration, and mucosal inflammation 172131General disorders and administration site conditionsFatigueIncluding fatigue and asthenia 656509Pyrexia150.4142Infections and infestationUrinary tract infection130.480.4Upper respiratory tract infection12030InvestigationsAlanine aminotransferase increased111101Metabolism and nutrition disordersDecreased appetite282211Hypokalemia163130.4Hypomagnesaemia12060Musculoskeletal and connective tissue disordersBack pain161142Arthralgia120.470Nervous system disordersHeadache180.8130.4Dizziness10070Psychiatric disordersInsomnia11050Respiratory, thoracic and mediastinal disordersCough240180.4Skin and subcutaneous tissue disordersAlopecia470160Rash120.450.4Pruritus10030Table 3: Select Laboratory Abnormalities in >10% of Patients with mTNBC in ASCENT Laboratory AbnormalityTRODELVY(n=258)Single Agent Chemotherapy(n=224)All Grades(%)Grade - 4(%)All Grades(%)Grade - 4(%)Decreased hemoglobin949576Decreased leukocytes86415325Decreased neutrophils78494836Decreased lymphocytes88314024Decreased platelets231.2252.7. Study IMMU-132-01The safety of TRODELVY was evaluated in single-arm, open-label study (IMMU-132-01) in patients with mTNBC and other malignancies, which included 108 patients with mTNBC who had received at least two prior treatments for metastatic disease [see Clinical Studies (14.1)]. TRODELVY was administered as an intravenous infusion once weekly on Days and of 21-day treatment cycles at doses up to 10 mg/kg until disease progression or unacceptable toxicity. The median treatment duration in these 108 patients was 5.1 months (range: 0-51 months).Serious adverse reactions occurred in 31% of the patients. Serious adverse reactions in >1% of patients receiving TRODELVY included febrile neutropenia (6%) vomiting (5%), nausea (3%), dyspnea (3%), diarrhea (4%), anemia (2%), pleural effusion, neutropenia, pneumonia, dehydration (each 2%).TRODELVY was permanently discontinued for adverse reactions in 2% of patients. Adverse reactions leading to permanent discontinuation were anaphylaxis, anorexia/fatigue, headache (each 0.9%). Forty- five percent (45%) of patients experienced an adverse reaction leading to treatment interruption. The most common adverse reaction leading to treatment interruption was neutropenia (33%). Adverse reactions leading to dose reduction occurred in 33% of patients treated with TRODELVY, with 24% having one dose reduction, and 9% with two dose reductions. The most common adverse reaction leading to dose reductions was neutropenia/febrile neutropenia.Adverse reactions occurring in >=10% of patients with mTNBC in the IMMU-132-01 study are summarized in Table 4.Table 4: Adverse Reactions in >= 10% of Patients with mTNBC in IMMU-132-01Adverse ReactionTRODELVY(n=108)Grade 1-4(%)Grade 3-4(%)Graded per NCI CTCAE v. 4.0Any adverse reaction10071Gastrointestinal disorders9521 Nausea696 Diarrhea639 Vomiting496 Constipation341 Abdominal painIncluding abdominal pain, distention, pain (upper), discomfort, tenderness. 261 MucositisIncluding stomatitis, esophagitis, and mucosal inflammation 141General disorders and administration site conditions779 FatigueIncluding fatigue and asthenia. 578 EdemaIncluding edema; and peripheral, localized, and periorbital edema 190 Pyrexia140Blood and lymphatic system disorders7437 Neutropenia6443 Anemia5212 Thrombocytopenia143Metabolism and nutrition disorders6822 Decreased appetite301 Hyperglycemia244 Hypomagnesemia211 Hypokalemia192 Hypophosphatemia169 Dehydration135Skin and subcutaneous tissue disorders634 Alopecia380 RashIncluding rash; maculopapular, erythematous, generalized rash; dermatitis acneiform; skin disorder, irritation, and exfoliation 313 Pruritus170 Dry Skin150Nervous system disorders564 Headache231 Dizziness220 NeuropathyIncluding gait disturbance, hypoesthesia, muscular weakness, paresthesia, peripheral and sensory neuropathy 240 Dysgeusia110Infections and infestations5512 Urinary Tract Infection213 Respiratory InfectionIncluding lower and upper respiratory tract infection, pneumonia, influenza, viral upper respiratory infection, bronchitis and respiratory syncytial virus infection 263Musculoskeletal and connective tissue disorders541 Back pain230 Arthralgia170 Pain in extremity110Respiratory, thoracic and mediastinal disorders545 CoughIncludes cough and productive cough 220 DyspneaIncludes dyspnea and exertional dyspnea 213Psychiatric disorders261 Insomnia130Table 5: Laboratory Abnormalities observed in >=10% of Patients while receiving TRODELVYLaboratory AbnormalityTRODELVY(n=108)All Grades(%)Grade 3-4(%)HematologyDecreased hemoglobin936Decreased leukocytes9126Decreased neutrophils8232Increased activated partial thromboplastin time6012Decreased platelets303ChemistryIncreased alkaline phosphatase572Decreased magnesium513Decreased calcium493Increased glucose483Increased aspartate aminotransferase453Decreased albumin391Increased alanine aminotransferase352Decreased potassium303Decreased phosphate295Decreased sodium254.7Increased magnesium244Decreased glucose192. Locally Advanced or Metastatic Urothelial Cancer. Study IMMU-132-06The safety of TRODELVY was evaluated in single-arm, open-label study (IMMU-132-06) in patients (n=113) with mUC who had received previous platinum-based and anti-PD-1/PD-L1 therapy. TRODELVY was administered as an intravenous infusion once weekly on Days and of 21-day treatment cycles at doses of 10 mg/kg until disease progression or unacceptable toxicity. (see Clinical Studies 14.2 )Serious adverse reactions occurred in 44% of patients. Serious adverse reactions in >1% of patients receiving TRODELVY included infection (18%), neutropenia (12%, including febrile neutropenia in 10%), acute kidney injury (6%), urinary tract infection (6%), sepsis or bacteremia (5%), diarrhea (4%), anemia, venous thromboembolism, and small intestinal obstruction (3% each), pneumonia, abdominal pain, pyrexia, and thrombocytopenia (2% each). Fatal adverse reactions occurred in 3.6% of patients, including sepsis, respiratory failure, epistaxis, and completed suicide.TRODELVY was permanently discontinued for adverse reactions in 10% of patients. The most frequent adverse reaction leading to permanent discontinuation of study drug was neutropenia (4%, including febrile neutropenia in 2%). Adverse reactions leading to dose interruption occurred in 52% of patients. The most common adverse reactions leading to dose interruption were neutropenia (27%, including febrile neutropenia in 2%), infection (12%), and acute kidney injury (8%). Adverse reactions leading to dose reduction of TRODELVY occurred in 42% of patients. The most common (>4%) adverse reactions leading to dose reduction were neutropenia (13%, including febrile neutropenia in 3%), diarrhea (11%), fatigue (8%), and infection (4%). Granulocyte-colony stimulating factor (G-CSF) was used in 47% of patients who received TRODELVY.The most common adverse reactions (incidence >=25%) were: diarrhea, fatigue, neutropenia, nausea, alopecia, anemia, decreased appetite, constipation, vomiting, and abdominal pain.Table 6: Adverse Reactions Reported in >=15% (Grade 1-4) or >=5% (Grade >=3) of Patients Treated with TRODELVY in IMMU-132-06Adverse ReactionTRODELVYn=113Grade 1-4%Grade 3-4% Any9480Gastrointestinal disordersDiarrhea7212Nausea664Constipation341Vomiting341Abdominal painIncludes abdominal discomfort, abdominal pain, abdominal pain lower, abdominal pain upper, gastrointestinal pain 312General disorders and administration site conditionsFatigueIncludes fatigue and asthenia 685Pyrexia190EdemaIncludes edema genital, edema peripheral, peripheral swelling 172Skin and subcutaneous tissue disordersAlopecia490RashIncludes dermatitis acneiform, dermatitis bullous, erythema, lichen planus, photosensitivity reaction, pruritus, pruritus generalised, rash, rash macular, rash maculo-papular, rash pruritic, skin papilloma, skin toxicity 322Metabolism and nutrition disordersDecreased appetite413Weight lossIncludes failure to thrive and weight decreased 172Renal and urinary disordersAcute kidney injuryIncludes acute kidney injury, blood creatinine increased, nephropathy toxic, renal failure, renal impairment 247Hematuria161Infections and infestationsAny infectionIncludes bacteremia, body tinea, bronchitis, candida infection, cellulitis, clostridium difficile infection, corona virus infection, device related infection, diverticulitis, escherichia bacteremia, escherichia pyelonephritis, folliculitis, gastroenteritis, gastroenteritis escherichia coli, herpes zoster, kidney infection, klebsiella sepsis, lung infection, nasopharyngitis, oral candidiasis, oral herpes, pneumonia, pyelonephritis, pyelonephritis acute, respiratory tract infection, rhinitis, sepsis, sinusitis, skin infection, tooth abscess, upper respiratory tract infection, urinary tract infection, urosepsis, vascular device infection, viral infection, viral pharyngitis, vulvovaginal mycotic infection 5025Urinary tract infection1912Respiratory, thoracic and mediastinal disordersCoughIncludes cough, productive cough, upper-airway cough syndrome 170Dyspnea160MusculoskeletalBack pain160Vascular disordersVenous thromboembolismIncludes deep vein thrombosis, embolism, and pulmonary embolism 96Other clinically significant adverse reactions (<=15%) include: peripheral neuropathy (12%), sepsis or bacteremia (9%), and pneumonia (4%).Table 7: Selected Laboratory Abnormalities Reported in >= 20% (Any Grade) or >= 5% (Grade 3-4) of Patients Treated with TRODELVY in IMMU-132-06Adverse ReactionTRODELVYn 113Any GradeDenominator for each laboratory parameter is based on the number of patients with baseline and post-treatment laboratory value available (range: 66 to 111 patients). %Grade 3-4 %HematologyLeukocytes decreased7838Lymphocytes decreased7135Hemoglobin decreased7118Neutrophils decreased6743Platelets decreased252ChemistryGlucose increased598Albumin decreased514Calcium decreased469Sodium decreased431Phosphate decreased4115Alkaline phosphatase increased360Creatinine increased325Magnesium decreased312Alanine aminotransferase increased282Lactate dehydrogenase increased280Potassium decreased270Aspartate aminotransferase increased262CoagulationActivated partial thromboplastin time increased336.

ADVERSE REACTIONS SECTION.

6 ADVERSE REACTIONS. The following adverse reactions are discussed in greater detail in other sections of the label:Neutropenia [see Warnings and Precautions (5.1)] Diarrhea [see Warnings and Precautions (5.2)] Hypersensitivity and Infusion-Related Reactions [see Warnings and Precautions (5.3)] Nausea and Vomiting [see Warnings and Precautions (5.4)] Neutropenia [see Warnings and Precautions (5.1)] Diarrhea [see Warnings and Precautions (5.2)] Hypersensitivity and Infusion-Related Reactions [see Warnings and Precautions (5.3)] Nausea and Vomiting [see Warnings and Precautions (5.4)] Most common adverse reactions (incidence >=25%) are neutropenia, nausea, diarrhea, fatigue, alopecia, anemia, vomiting, constipation, decreased appetite, rash and abdominal pain. (6.1)To report SUSPECTED ADVERSE REACTIONS, contact Gilead Sciences, Inc. at 1-888-983-4668 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.. 6.1 Clinical Trials Experience. Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.The pooled safety population described in the Warnings and Precautions section reflect exposure to TRODELVY as single agent in 795 patients from three studies, IMMU-132-01, IMMU-132-05 and IMMU-132-06 which included 366 patients with mTNBC who had received prior systemic chemotherapy for advanced disease and 180 patients with mUC. TRODELVY was administered as an intravenous infusion once weekly on Days and of 21-day treatment cycles at doses of 10 mg/kg until disease progression or unacceptable toxicity. Among the 795 patients treated with TRODELVY, the median duration of treatment was 4.1 months (range: to 59 months). In this pooled safety population, the most common (>= 25%) adverse reactions were neutropenia (61%), nausea (66%), diarrhea (65%), fatigue (62%), alopecia (45%), anemia (42%), vomiting (39%), constipation (37%), decreased appetite (34%), rash (32%) and abdominal pain (28%).. Metastatic Triple-Negative Breast Cancer. ASCENT StudyThe safety of TRODELVY was evaluated in randomized, active-controlled, open-label trial (ASCENT) in patients with mTNBC who had previously received taxane and at least two prior therapies. Patients were randomized (1:1) to receive either TRODELVY (n=258) or single agent chemotherapy (n=224) and were treated until disease progression or unacceptable toxicity [see Clinical Studies (14.1)]. For patients treated with TRODELVY, the median duration of treatment was 4.4 months (range: to 23 months).Serious adverse reactions occurred in 27% of patients receiving TRODELVY. Serious adverse reactions in 1% of patients receiving TRODELVY included neutropenia (7%), diarrhea (4%), and pneumonia (3%). Fatal adverse reactions occurred in 1.2% of patients who received TRODELVY, including respiratory failure (0.8%) and pneumonia (0.4%). TRODELVY was permanently discontinued for adverse reactions in 5% of patients. Adverse reactions leading to permanent discontinuation in >= % of patients who received TRODELVY were pneumonia (1%) and fatigue (1%).Adverse reactions leading to treatment interruption of TRODELVY occurred in 63% of patients. The most frequent (>=5%) adverse reactions leading to treatment interruption were neutropenia (47%), diarrhea (5%), respiratory infection (5%), and leukopenia (5%).Adverse reactions leading to dose reduction of TRODELVY occurred in 22% of patients. The most frequent (>4%) adverse reactions leading to dose reduction were neutropenia (11%) and diarrhea (5%).Granulocyte-colony stimulating factor (G-CSF) was used in 44% of patients who received TRODELVY.Tables and summarize adverse reactions and select laboratory abnormalities, respectively, in the ASCENT study.Table 2: Adverse Reactions in >=10% of Patients with mTNBC in ASCENTTRODELVY (n=258)Single Agent Chemotherapy (n=224)Adverse ReactionAll Grades%Grade - 4%All Grades%Grade - 4%Single agent chemotherapy included one of the following single-agents: eribulin (n=139), capecitabine (n=33), gemcitabine (n=38), or vinorelbine (except if patient had >=Grade neuropathy, n=52).Graded per NCI CTCAE v.5.0.Blood and lymphatic system disordersNeutropenia Including neutropenia and neutrophil count decreased 64524434AnemiaIncluding anemia, hemoglobin decreased, and red blood cell count decreased 409286LeukopeniaIncluding leukopenia and white blood cell count decreased 1711126LymphopeniaIncluding lymphopenia and lymphocyte count decreased 10262Gastrointestinal disordersDiarrhea5911171Nausea573260.4Vomiting332161Constipation370.4230Abdominal Pain303121StomatitisIncluding stomatitis, glossitis, mouth ulceration, and mucosal inflammation 172131General disorders and administration site conditionsFatigueIncluding fatigue and asthenia 656509Pyrexia150.4142Infections and infestationUrinary tract infection130.480.4Upper respiratory tract infection12030InvestigationsAlanine aminotransferase increased111101Metabolism and nutrition disordersDecreased appetite282211Hypokalemia163130.4Hypomagnesaemia12060Musculoskeletal and connective tissue disordersBack pain161142Arthralgia120.470Nervous system disordersHeadache180.8130.4Dizziness10070Psychiatric disordersInsomnia11050Respiratory, thoracic and mediastinal disordersCough240180.4Skin and subcutaneous tissue disordersAlopecia470160Rash120.450.4Pruritus10030Table 3: Select Laboratory Abnormalities in >10% of Patients with mTNBC in ASCENT Laboratory AbnormalityTRODELVY(n=258)Single Agent Chemotherapy(n=224)All Grades(%)Grade - 4(%)All Grades(%)Grade - 4(%)Decreased hemoglobin949576Decreased leukocytes86415325Decreased neutrophils78494836Decreased lymphocytes88314024Decreased platelets231.2252.7. Study IMMU-132-01The safety of TRODELVY was evaluated in single-arm, open-label study (IMMU-132-01) in patients with mTNBC and other malignancies, which included 108 patients with mTNBC who had received at least two prior treatments for metastatic disease [see Clinical Studies (14.1)]. TRODELVY was administered as an intravenous infusion once weekly on Days and of 21-day treatment cycles at doses up to 10 mg/kg until disease progression or unacceptable toxicity. The median treatment duration in these 108 patients was 5.1 months (range: 0-51 months).Serious adverse reactions occurred in 31% of the patients. Serious adverse reactions in >1% of patients receiving TRODELVY included febrile neutropenia (6%) vomiting (5%), nausea (3%), dyspnea (3%), diarrhea (4%), anemia (2%), pleural effusion, neutropenia, pneumonia, dehydration (each 2%).TRODELVY was permanently discontinued for adverse reactions in 2% of patients. Adverse reactions leading to permanent discontinuation were anaphylaxis, anorexia/fatigue, headache (each 0.9%). Forty- five percent (45%) of patients experienced an adverse reaction leading to treatment interruption. The most common adverse reaction leading to treatment interruption was neutropenia (33%). Adverse reactions leading to dose reduction occurred in 33% of patients treated with TRODELVY, with 24% having one dose reduction, and 9% with two dose reductions. The most common adverse reaction leading to dose reductions was neutropenia/febrile neutropenia.Adverse reactions occurring in >=10% of patients with mTNBC in the IMMU-132-01 study are summarized in Table 4.Table 4: Adverse Reactions in >= 10% of Patients with mTNBC in IMMU-132-01Adverse ReactionTRODELVY(n=108)Grade 1-4(%)Grade 3-4(%)Graded per NCI CTCAE v. 4.0Any adverse reaction10071Gastrointestinal disorders9521 Nausea696 Diarrhea639 Vomiting496 Constipation341 Abdominal painIncluding abdominal pain, distention, pain (upper), discomfort, tenderness. 261 MucositisIncluding stomatitis, esophagitis, and mucosal inflammation 141General disorders and administration site conditions779 FatigueIncluding fatigue and asthenia. 578 EdemaIncluding edema; and peripheral, localized, and periorbital edema 190 Pyrexia140Blood and lymphatic system disorders7437 Neutropenia6443 Anemia5212 Thrombocytopenia143Metabolism and nutrition disorders6822 Decreased appetite301 Hyperglycemia244 Hypomagnesemia211 Hypokalemia192 Hypophosphatemia169 Dehydration135Skin and subcutaneous tissue disorders634 Alopecia380 RashIncluding rash; maculopapular, erythematous, generalized rash; dermatitis acneiform; skin disorder, irritation, and exfoliation 313 Pruritus170 Dry Skin150Nervous system disorders564 Headache231 Dizziness220 NeuropathyIncluding gait disturbance, hypoesthesia, muscular weakness, paresthesia, peripheral and sensory neuropathy 240 Dysgeusia110Infections and infestations5512 Urinary Tract Infection213 Respiratory InfectionIncluding lower and upper respiratory tract infection, pneumonia, influenza, viral upper respiratory infection, bronchitis and respiratory syncytial virus infection 263Musculoskeletal and connective tissue disorders541 Back pain230 Arthralgia170 Pain in extremity110Respiratory, thoracic and mediastinal disorders545 CoughIncludes cough and productive cough 220 DyspneaIncludes dyspnea and exertional dyspnea 213Psychiatric disorders261 Insomnia130Table 5: Laboratory Abnormalities observed in >=10% of Patients while receiving TRODELVYLaboratory AbnormalityTRODELVY(n=108)All Grades(%)Grade 3-4(%)HematologyDecreased hemoglobin936Decreased leukocytes9126Decreased neutrophils8232Increased activated partial thromboplastin time6012Decreased platelets303ChemistryIncreased alkaline phosphatase572Decreased magnesium513Decreased calcium493Increased glucose483Increased aspartate aminotransferase453Decreased albumin391Increased alanine aminotransferase352Decreased potassium303Decreased phosphate295Decreased sodium254.7Increased magnesium244Decreased glucose192. Locally Advanced or Metastatic Urothelial Cancer. Study IMMU-132-06The safety of TRODELVY was evaluated in single-arm, open-label study (IMMU-132-06) in patients (n=113) with mUC who had received previous platinum-based and anti-PD-1/PD-L1 therapy. TRODELVY was administered as an intravenous infusion once weekly on Days and of 21-day treatment cycles at doses of 10 mg/kg until disease progression or unacceptable toxicity. (see Clinical Studies 14.2 )Serious adverse reactions occurred in 44% of patients. Serious adverse reactions in >1% of patients receiving TRODELVY included infection (18%), neutropenia (12%, including febrile neutropenia in 10%), acute kidney injury (6%), urinary tract infection (6%), sepsis or bacteremia (5%), diarrhea (4%), anemia, venous thromboembolism, and small intestinal obstruction (3% each), pneumonia, abdominal pain, pyrexia, and thrombocytopenia (2% each). Fatal adverse reactions occurred in 3.6% of patients, including sepsis, respiratory failure, epistaxis, and completed suicide.TRODELVY was permanently discontinued for adverse reactions in 10% of patients. The most frequent adverse reaction leading to permanent discontinuation of study drug was neutropenia (4%, including febrile neutropenia in 2%). Adverse reactions leading to dose interruption occurred in 52% of patients. The most common adverse reactions leading to dose interruption were neutropenia (27%, including febrile neutropenia in 2%), infection (12%), and acute kidney injury (8%). Adverse reactions leading to dose reduction of TRODELVY occurred in 42% of patients. The most common (>4%) adverse reactions leading to dose reduction were neutropenia (13%, including febrile neutropenia in 3%), diarrhea (11%), fatigue (8%), and infection (4%). Granulocyte-colony stimulating factor (G-CSF) was used in 47% of patients who received TRODELVY.The most common adverse reactions (incidence >=25%) were: diarrhea, fatigue, neutropenia, nausea, alopecia, anemia, decreased appetite, constipation, vomiting, and abdominal pain.Table 6: Adverse Reactions Reported in >=15% (Grade 1-4) or >=5% (Grade >=3) of Patients Treated with TRODELVY in IMMU-132-06Adverse ReactionTRODELVYn=113Grade 1-4%Grade 3-4% Any9480Gastrointestinal disordersDiarrhea7212Nausea664Constipation341Vomiting341Abdominal painIncludes abdominal discomfort, abdominal pain, abdominal pain lower, abdominal pain upper, gastrointestinal pain 312General disorders and administration site conditionsFatigueIncludes fatigue and asthenia 685Pyrexia190EdemaIncludes edema genital, edema peripheral, peripheral swelling 172Skin and subcutaneous tissue disordersAlopecia490RashIncludes dermatitis acneiform, dermatitis bullous, erythema, lichen planus, photosensitivity reaction, pruritus, pruritus generalised, rash, rash macular, rash maculo-papular, rash pruritic, skin papilloma, skin toxicity 322Metabolism and nutrition disordersDecreased appetite413Weight lossIncludes failure to thrive and weight decreased 172Renal and urinary disordersAcute kidney injuryIncludes acute kidney injury, blood creatinine increased, nephropathy toxic, renal failure, renal impairment 247Hematuria161Infections and infestationsAny infectionIncludes bacteremia, body tinea, bronchitis, candida infection, cellulitis, clostridium difficile infection, corona virus infection, device related infection, diverticulitis, escherichia bacteremia, escherichia pyelonephritis, folliculitis, gastroenteritis, gastroenteritis escherichia coli, herpes zoster, kidney infection, klebsiella sepsis, lung infection, nasopharyngitis, oral candidiasis, oral herpes, pneumonia, pyelonephritis, pyelonephritis acute, respiratory tract infection, rhinitis, sepsis, sinusitis, skin infection, tooth abscess, upper respiratory tract infection, urinary tract infection, urosepsis, vascular device infection, viral infection, viral pharyngitis, vulvovaginal mycotic infection 5025Urinary tract infection1912Respiratory, thoracic and mediastinal disordersCoughIncludes cough, productive cough, upper-airway cough syndrome 170Dyspnea160MusculoskeletalBack pain160Vascular disordersVenous thromboembolismIncludes deep vein thrombosis, embolism, and pulmonary embolism 96Other clinically significant adverse reactions (<=15%) include: peripheral neuropathy (12%), sepsis or bacteremia (9%), and pneumonia (4%).Table 7: Selected Laboratory Abnormalities Reported in >= 20% (Any Grade) or >= 5% (Grade 3-4) of Patients Treated with TRODELVY in IMMU-132-06Adverse ReactionTRODELVYn 113Any GradeDenominator for each laboratory parameter is based on the number of patients with baseline and post-treatment laboratory value available (range: 66 to 111 patients). %Grade 3-4 %HematologyLeukocytes decreased7838Lymphocytes decreased7135Hemoglobin decreased7118Neutrophils decreased6743Platelets decreased252ChemistryGlucose increased598Albumin decreased514Calcium decreased469Sodium decreased431Phosphate decreased4115Alkaline phosphatase increased360Creatinine increased325Magnesium decreased312Alanine aminotransferase increased282Lactate dehydrogenase increased280Potassium decreased270Aspartate aminotransferase increased262CoagulationActivated partial thromboplastin time increased336. 6.2 Immunogenicity. As with all therapeutic proteins, there is potential for immunogenicity. The detection of antibody formation is highly dependent on the sensitivity and specificity of the assay. Additionally, the observed incidence of antibody (including neutralizing antibody) positivity in an assay may be influenced by several factors including assay methodology, sample handling, timing of sample collection, concomitant medications, and underlying disease. For these reasons, comparison of the incidence of antibodies in the studies described below with the incidence of antibodies in other studies or to other sacituzumab govitecan products may be misleading.The analysis of immunogenicity of TRODELVY in serum samples from 106 patients with mTNBC was evaluated using an electrochemiluminescence (ECL)-based immunoassay to test for anti-sacituzumab govitecan-hziy antibodies. Detection of the anti-sacituzumab govitecan-hziy antibodies was done using 3-tier approach: screen, confirm, and titer. Persistent anti-sacituzumab govitecan-hziy antibodies developed in 2% (2/106) of patients.

DOSAGE & ADMINISTRATION SECTION.

2 DOSAGE AND ADMINISTRATION. Do NOT substitute TRODELVY for or use with other drugs containing irinotecan or its active metabolite SN-38. (2.1)For intravenous infusion only. Do not administer as an intravenous push or bolus.The recommended dose is 10 mg/kg once weekly on Days and of continuous 21-day treatment cycles until disease progression or unacceptable toxicity. (2.2)Premedication for prevention of infusion reactions and prevention of chemotherapy-induced nausea and vomiting is recommended. (2.2) Monitor patients during the infusion and for at least 30 minutes after completion of infusion. Treatment interruption and/or dose reduction may be needed to manage adverse reactions. (2.2)See Full Prescribing Information for preparation and administration instructions. (2.4). Do NOT substitute TRODELVY for or use with other drugs containing irinotecan or its active metabolite SN-38. (2.1). For intravenous infusion only. Do not administer as an intravenous push or bolus.. The recommended dose is 10 mg/kg once weekly on Days and of continuous 21-day treatment cycles until disease progression or unacceptable toxicity. (2.2). Premedication for prevention of infusion reactions and prevention of chemotherapy-induced nausea and vomiting is recommended. (2.2) Monitor patients during the infusion and for at least 30 minutes after completion of infusion. Treatment interruption and/or dose reduction may be needed to manage adverse reactions. (2.2). See Full Prescribing Information for preparation and administration instructions. (2.4). 2.1 Important Use Information Do NOT substitute TRODELVY for or use with other drugs containing irinotecan or its active metabolite SN-38.. 2.2 Recommended Dose and Schedule. The recommended dose of TRODELVY is 10 mg/kg administered as an intravenous infusion once weekly on Days and of 21-day treatment cycles. Continue treatment until disease progression or unacceptable toxicity. Do not administer TRODELVY at doses greater than 10 mg/kg.Administer TRODELVY as an intravenous infusion only. Do not administer as an intravenous push or bolus.First infusion: Administer infusion over hours. Observe patients during the infusion and for at least 30 minutes following the initial dose, for signs or symptoms of infusion-related reactions [see Warning and Precautions (5.3)].Subsequent infusions: Administer infusion over to hours if prior infusions were tolerated. Observe patients during the infusion and for at least 30 minutes after infusion.. PremedicationPrior to each dose of TRODELVY, premedication for prevention of infusion reactions and prevention of chemotherapy-induced nausea and vomiting (CINV) is recommended.Premedicate with antipyretics, H1 and H2 blockers prior to infusion, and corticosteroids may be used for patients who had prior infusion reactions.Premedicate with two or three drug combination regimen (e.g., dexamethasone with either 5-HT3 receptor antagonist or an NK1 receptor antagonist, as well as other drugs as indicated).. Premedicate with antipyretics, H1 and H2 blockers prior to infusion, and corticosteroids may be used for patients who had prior infusion reactions.. Premedicate with two or three drug combination regimen (e.g., dexamethasone with either 5-HT3 receptor antagonist or an NK1 receptor antagonist, as well as other drugs as indicated).. 2.3 Dose Modifications for Adverse Reactions. Infusion-related ReactionsSlow or interrupt the infusion rate of TRODELVY if the patient develops an infusion-related reaction. Permanently discontinue TRODELVY for life-threatening infusion-related reactions [see Warnings and Precautions (5.3)] Dose Modifications for Adverse ReactionsWithhold or discontinue TRODELVY to manage adverse reactions as described in Table 1. Do not re-escalate the TRODELVY dose after dose reduction for adverse reactions has been made.Table 1: Dose Modifications for Adverse ReactionsAdverse ReactionOccurrenceDose ModificationSevere Neutropenia [see Warnings and Precautions (5.1)]Grade neutropenia >=7 days,ORGrade febrile neutropenia(absolute neutrophil count <1000/mm3 and fever >=38.5C),ORAt time of scheduled treatment, Grade 3-4 neutropenia which delays dosing by or weeks for recovery to <=Grade 1First25% dose reduction and administer granulocyte-colony stimulating factor (G-CSF) Second50% dose reductionThirdDiscontinue treatmentAt time of scheduled treatment, Grade 3-4 neutropenia which delays dosing beyond weeks for recovery to <=Grade 1FirstDiscontinue treatmentSevere Non-Neutropenic ToxicityGrade non-hematologic toxicity of any duration, ORAny Grade 3-4 nausea, vomiting or diarrhea due to treatment that is not controlled with antiemetics and anti-diarrheal agents [see Warnings and Precautions (5.2 5.4)],OROther Grade 3-4 non-hematologic toxicity persisting >48 hours despite optimal medical management,ORAt time of scheduled treatment, Grade 3-4 non-neutropenic hematologic or non-hematologic toxicity, which delays dose by or weeks for recovery to <=Grade 1First25% dose reductionSecond50% dose reductionThirdDiscontinue treatmentIn the event of Grade 3-4 non-neutropenic hematologic or non-hematologic toxicity, which does not recover to <=Grade within weeksFirstDiscontinue treatment. 2.4 Preparation for Administration. ReconstitutionTRODELVY is cytotoxic drug.Follow applicable special handling and disposal procedures1.Calculate the required dose (mg) of TRODELVY based on the patients body weight at the beginning of each treatment cycle (or more frequently if the patients body weight changed by more than 10% since the previous administration) [see Dosage and Administration (2.2)].Allow the required number of vials to warm to room temperature.Using sterile syringe, slowly inject 20 mL of 0.9% Sodium Chloride Injection, USP, into each 180 mg TRODELVY vial. The resulting concentration will be 10 mg/mL.Gently swirl vials and allow to dissolve for up to 15 minutes. Do not shake. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. The solution should be free of visible particulates, clear and yellow. Do not use the reconstituted solution if it is cloudy or discolored.Use immediately to prepare diluted TRODELVY infusion solution.. TRODELVY is cytotoxic drug.. Follow applicable special handling and disposal procedures1.. Calculate the required dose (mg) of TRODELVY based on the patients body weight at the beginning of each treatment cycle (or more frequently if the patients body weight changed by more than 10% since the previous administration) [see Dosage and Administration (2.2)].. Allow the required number of vials to warm to room temperature.. Using sterile syringe, slowly inject 20 mL of 0.9% Sodium Chloride Injection, USP, into each 180 mg TRODELVY vial. The resulting concentration will be 10 mg/mL.. Gently swirl vials and allow to dissolve for up to 15 minutes. Do not shake. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. The solution should be free of visible particulates, clear and yellow. Do not use the reconstituted solution if it is cloudy or discolored.. Use immediately to prepare diluted TRODELVY infusion solution.. DilutionCalculate the required volume of the reconstituted TRODELVY solution needed to obtain the appropriate dose according to patients body weight. Withdraw this amount from the vial(s) using syringe. Discard any unused portion remaining in the vial(s).Adjust the volume in the infusion bag as needed with 0.9% Sodium Chloride Injection, USP, to obtain concentration of 1.1 mg/mL to 3.4 mg/mL (total volume should not exceed 500 mL). For patients whose body weight exceeds 170 kg, divide the total dosage of TRODELVY equally between two 500 mL infusion bags and infuse sequentially via slow infusion.Slowly inject the required volume of reconstituted TRODELVY solution into polyvinyl chloride, polypropylene or ethylene/propylene copolymer infusion bag, to minimize foaming. Do not shake the contents.Only 0.9% Sodium Chloride Injection, USP, should be used since the stability of the reconstituted product has not been determined with other infusion-based solutions. Use the diluted solution in the infusion bag immediately. If not used immediately, the infusion bag containing TRODELVY solution can be stored refrigerated 2C to 8C (36F to 46F) for up to hours. After refrigeration, administer diluted solution within hours (including infusion time).Do Not Freeze or Shake. Protect from Light.. Calculate the required volume of the reconstituted TRODELVY solution needed to obtain the appropriate dose according to patients body weight. Withdraw this amount from the vial(s) using syringe. Discard any unused portion remaining in the vial(s).. Adjust the volume in the infusion bag as needed with 0.9% Sodium Chloride Injection, USP, to obtain concentration of 1.1 mg/mL to 3.4 mg/mL (total volume should not exceed 500 mL). For patients whose body weight exceeds 170 kg, divide the total dosage of TRODELVY equally between two 500 mL infusion bags and infuse sequentially via slow infusion.. Slowly inject the required volume of reconstituted TRODELVY solution into polyvinyl chloride, polypropylene or ethylene/propylene copolymer infusion bag, to minimize foaming. Do not shake the contents.. Only 0.9% Sodium Chloride Injection, USP, should be used since the stability of the reconstituted product has not been determined with other infusion-based solutions. Use the diluted solution in the infusion bag immediately. If not used immediately, the infusion bag containing TRODELVY solution can be stored refrigerated 2C to 8C (36F to 46F) for up to hours. After refrigeration, administer diluted solution within hours (including infusion time).. AdministrationAdminister TRODELVY as an intravenous infusion. Protect infusion bag from light.An infusion pump may be used.Do not mix TRODELVY, or administer as an infusion, with other medicinal products.Upon completion of the infusion, flush the intravenous line with 20 mL 0.9% Sodium Chloride Injection, USP.. Administer TRODELVY as an intravenous infusion. Protect infusion bag from light.. An infusion pump may be used.. Do not mix TRODELVY, or administer as an infusion, with other medicinal products.. Upon completion of the infusion, flush the intravenous line with 20 mL 0.9% Sodium Chloride Injection, USP.

SPL PATIENT PACKAGE INSERT SECTION.

The Patient Information has been approved by the U.S. Food and Drug Administration.Revised: 10/2021Patient InformationTRODELVY(R) (troh-DELL-vee)(sacituzumab govitecan-hziy)for injection, for intravenous useWhat is the most important information should know about TRODELVYTRODELVY can cause serious side effects, including:Low white blood cell count (neutropenia). Low white blood cell counts are common with TRODELVY and can sometimes be severe and lead to infections that can be life-threatening or cause death. Your healthcare provider should check your blood cell counts during treatment with TRODELVY. If your white blood cell count is too low, your healthcare provider may need to lower your dose of TRODELVY, give you medicine to help prevent low blood cell count with future doses of TRODELVY, or in some cases may stop TRODELVY. Your healthcare provider may need to give you antibiotic medicines if you develop fever while your white blood cell count is low. Call your healthcare provider right away if you develop any of the following signs of infection during treatment with TRODELVY:feverchillscoughshortness of breathburning or pain when you urinateSevere diarrhea. Diarrhea is common with TRODELVY and can also be severe. Your healthcare provider should monitor you for diarrhea and give you medicine as needed to help control your diarrhea. If you lose too much body fluids (dehydration) your healthcare provider may need to give you fluids and electrolytes to replace body salts. If diarrhea happens later in your treatment, your healthcare provider may check you to see if the diarrhea may be caused by an infection. Your healthcare provider may decrease your dose or stop TRODELVY if your diarrhea is severe and cannot be controlled with anti-diarrheal medicines. Call your healthcare provider right away: the first time that you get diarrhea during treatment with TRODELVYif you have black or bloody stoolsif you have symptoms of losing too much body fluid (dehydration) and body salts, such as lightheadedness, dizziness or faintnessif you are unable to take fluids by mouth due to nausea or vomitingif you are not able to get your diarrhea under control within 24 hours What is TRODELVYTRODELVY is prescription medicine used to treat adults with:a type of breast cancer that is estrogen and progesterone hormone receptor (HR) negative, and human epidermal growth factor receptor (HER2)-negative (also called triple-negative breast cancer). TRODELVY may be used:when your breast cancer has spread to other parts of the body (metastatic) or cannot be removed by surgery, and if you previously received two or more prior treatments, including at least one treatment for metastatic disease. bladder cancer and cancers of the urinary tract that have spread or cannot be removed by surgery. TRODELVY may be used if you have:received platinum-containing chemotherapy medicine and also received an immunotherapy medicine. It is not known if TRODELVY is safe and effective in people with moderate or severe liver problems.It is not known if TRODELVY is safe and effective in children.Do not receive TRODELVY if you have had severe allergic reaction to TRODELVY. Ask your healthcare provider if you are not sure.Before receiving TRODELVY, tell your healthcare provider about all of your medical conditions, including if you:have been told that you carry gene for uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1)28. People who carry this gene have an increased risk of getting side effects with TRODELVY, especially low white blood cell counts, fever while your white blood cell count is low, and low red blood cell counts. See What is the most important information should know about TRODELVY have liver problems.are pregnant or plan to become pregnant. TRODELVY can harm your unborn baby. Your healthcare provider should check to see if you are pregnant before you start receiving TRODELVY.Females who can become pregnant should use effective birth control during treatment and for months after your last dose of TRODELVY. Talk to your healthcare provider about birth control choices that may be right for you during this time.Males with female partner who can become pregnant should use effective birth control during treatment and for months after your last dose of TRODELVY.Tell your healthcare provider right away if you or your partner become pregnant during treatment with TRODELVY. are breastfeeding or plan to breastfeed. It is not known if TRODELVY passes into your breastmilk and can harm your baby. Do not breastfeed during treatment and for month after your last dose of TRODELVY.Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Certain medicines may affect the way TRODELVY works.How will receive TRODELVYYour healthcare provider will give you TRODELVY into your vein through an intravenous (IV) line.TRODELVY is given time each week, on Day and on Day of 21-day treatment cycle. You will receive the first dose of TRODELVY over hours. If you tolerate the first dose well, future doses may be given over to hours.Before each dose of TRODELVY, you will receive medicines to help prevent infusion reactions, and nausea and vomiting.You will be monitored for side effects during and for at least 30 minutes after you receive each infusion of TRODELVY.Your healthcare provider may slow down or temporarily stop your infusion of TRODELVY if you have an infusion-related reaction, or permanently stop TRODELVY if you have life-threatening infusion-related reaction.Your healthcare provider will decide how long you will continue to receive TRODELVY.What are the possible side effects of TRODELVYTRODELVY can cause serious side effects, including:See What is the most important information should know about TRODELVYAllergic and infusion-related reactions. Serious allergic reactions can happen during treatment with TRODELVY, including life-threatening allergic reactions, and infusion-related reactions). Tell your healthcare provider or nurse right away if you get any of the following symptoms of an allergic or infusion-related reaction during your infusion of TRODELVY or within 24 hours after you receive dose of TRODELVY:swelling of your face, lips, tongue, or throathivesskin rash, itching, or flushing of your skinfeverdifficulty breathing or wheezinglightheadedness, dizziness, feeling faint or pass out chills or shaking chills (rigors)Nausea and vomiting. Nausea and vomiting are common with TRODELVY and can sometimes be severe. Before each dose of TRODELVY, you will receive medicines to help prevent nausea and vomiting. You should be given medicines to take home with you, along with instructions about how to take them to help prevent and treat any nausea and vomiting after you receive TRODELVY. Call your healthcare provider right away if you have nausea or vomiting that is not controlled with the medicines prescribed for you. Your healthcare provider may decide to decrease your dose or stop TRODELVY if your nausea and vomiting is severe and cannot be controlled with anti-nausea medicines.The most common side effects of TRODELVY include:feeling tired or weakhair lossdecreased red blood cell countconstipationdecreased appetiterash. See Allergic and infusion-related reactions above. stomach-area (abdominal) pain or discomfortTRODELVY may cause fertility problems in females, which could affect your ability to have baby. Talk to your healthcare provider if fertility is concern for you.These are not all of the possible side effects of TRODELVY.Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.General information about the safe and effective use of TRODELVY.Medicines are sometimes prescribed for purposes other than those listed in Patient Information leaflet. You can ask your pharmacist or healthcare provider for information about TRODELVY that is written for health professionals.What are the ingredients in TRODELVYActive ingredient: sacituzumab govitecan-hziyInactive ingredients: 2-(N-morpholino) ethane sulfonic acid (MES), polysorbate 80 and trehalose dihydrateManufactured for: Gilead Sciences, Inc., 300 The American Road, Morris Plains, NJ 07950, USAU.S. License No. 2258761115-GS-003For more information about TRODELVY, go to www.TRODELVY.com or call 1-888-983-4668.. Low white blood cell count (neutropenia). Low white blood cell counts are common with TRODELVY and can sometimes be severe and lead to infections that can be life-threatening or cause death. Your healthcare provider should check your blood cell counts during treatment with TRODELVY. If your white blood cell count is too low, your healthcare provider may need to lower your dose of TRODELVY, give you medicine to help prevent low blood cell count with future doses of TRODELVY, or in some cases may stop TRODELVY. Your healthcare provider may need to give you antibiotic medicines if you develop fever while your white blood cell count is low. Call your healthcare provider right away if you develop any of the following signs of infection during treatment with TRODELVY:. fever. chills. cough. shortness of breath. burning or pain when you urinate. Severe diarrhea. Diarrhea is common with TRODELVY and can also be severe. Your healthcare provider should monitor you for diarrhea and give you medicine as needed to help control your diarrhea. If you lose too much body fluids (dehydration) your healthcare provider may need to give you fluids and electrolytes to replace body salts. If diarrhea happens later in your treatment, your healthcare provider may check you to see if the diarrhea may be caused by an infection. Your healthcare provider may decrease your dose or stop TRODELVY if your diarrhea is severe and cannot be controlled with anti-diarrheal medicines. Call your healthcare provider right away: the first time that you get diarrhea during treatment with TRODELVYif you have black or bloody stoolsif you have symptoms of losing too much body fluid (dehydration) and body salts, such as lightheadedness, dizziness or faintnessif you are unable to take fluids by mouth due to nausea or vomitingif you are not able to get your diarrhea under control within 24 hours the first time that you get diarrhea during treatment with TRODELVY. if you have black or bloody stools. if you have symptoms of losing too much body fluid (dehydration) and body salts, such as lightheadedness, dizziness or faintness. if you are unable to take fluids by mouth due to nausea or vomiting. if you are not able to get your diarrhea under control within 24 hours. type of breast cancer that is estrogen and progesterone hormone receptor (HR) negative, and human epidermal growth factor receptor (HER2)-negative (also called triple-negative breast cancer). TRODELVY may be used:when your breast cancer has spread to other parts of the body (metastatic) or cannot be removed by surgery, and if you previously received two or more prior treatments, including at least one treatment for metastatic disease. when your breast cancer has spread to other parts of the body (metastatic) or cannot be removed by surgery, and if you previously received two or more prior treatments, including at least one treatment for metastatic disease. bladder cancer and cancers of the urinary tract that have spread or cannot be removed by surgery. TRODELVY may be used if you have:received platinum-containing chemotherapy medicine and also received an immunotherapy medicine. received platinum-containing chemotherapy medicine and also received an immunotherapy medicine.. have been told that you carry gene for uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1)28. People who carry this gene have an increased risk of getting side effects with TRODELVY, especially low white blood cell counts, fever while your white blood cell count is low, and low red blood cell counts. See What is the most important information should know about TRODELVY have liver problems.. are pregnant or plan to become pregnant. TRODELVY can harm your unborn baby. Your healthcare provider should check to see if you are pregnant before you start receiving TRODELVY.Females who can become pregnant should use effective birth control during treatment and for months after your last dose of TRODELVY. Talk to your healthcare provider about birth control choices that may be right for you during this time.Males with female partner who can become pregnant should use effective birth control during treatment and for months after your last dose of TRODELVY.Tell your healthcare provider right away if you or your partner become pregnant during treatment with TRODELVY. Females who can become pregnant should use effective birth control during treatment and for months after your last dose of TRODELVY. Talk to your healthcare provider about birth control choices that may be right for you during this time.. Males with female partner who can become pregnant should use effective birth control during treatment and for months after your last dose of TRODELVY.. Tell your healthcare provider right away if you or your partner become pregnant during treatment with TRODELVY.. are breastfeeding or plan to breastfeed. It is not known if TRODELVY passes into your breastmilk and can harm your baby. Do not breastfeed during treatment and for month after your last dose of TRODELVY.. Your healthcare provider will give you TRODELVY into your vein through an intravenous (IV) line.. TRODELVY is given time each week, on Day and on Day of 21-day treatment cycle. You will receive the first dose of TRODELVY over hours. If you tolerate the first dose well, future doses may be given over to hours.. Before each dose of TRODELVY, you will receive medicines to help prevent infusion reactions, and nausea and vomiting.. You will be monitored for side effects during and for at least 30 minutes after you receive each infusion of TRODELVY.. Your healthcare provider may slow down or temporarily stop your infusion of TRODELVY if you have an infusion-related reaction, or permanently stop TRODELVY if you have life-threatening infusion-related reaction.. Your healthcare provider will decide how long you will continue to receive TRODELVY.. See What is the most important information should know about TRODELVY. Allergic and infusion-related reactions. Serious allergic reactions can happen during treatment with TRODELVY, including life-threatening allergic reactions, and infusion-related reactions). Tell your healthcare provider or nurse right away if you get any of the following symptoms of an allergic or infusion-related reaction during your infusion of TRODELVY or within 24 hours after you receive dose of TRODELVY:. swelling of your face, lips, tongue, or throat. hives. skin rash, itching, or flushing of your skin. fever. difficulty breathing or wheezing. lightheadedness, dizziness, feeling faint or pass out chills or shaking chills (rigors). Nausea and vomiting. Nausea and vomiting are common with TRODELVY and can sometimes be severe. Before each dose of TRODELVY, you will receive medicines to help prevent nausea and vomiting. You should be given medicines to take home with you, along with instructions about how to take them to help prevent and treat any nausea and vomiting after you receive TRODELVY. Call your healthcare provider right away if you have nausea or vomiting that is not controlled with the medicines prescribed for you. Your healthcare provider may decide to decrease your dose or stop TRODELVY if your nausea and vomiting is severe and cannot be controlled with anti-nausea medicines.. feeling tired or weak. hair loss. decreased red blood cell count. constipation. decreased appetite. rash. See Allergic and infusion-related reactions above. stomach-area (abdominal) pain or discomfort.

USE IN SPECIFIC POPULATIONS SECTION.

8 USE IN SPECIFIC POPULATIONS. Lactation: Advise not to breastfeed. (8.2). Lactation: Advise not to breastfeed. (8.2). 8.1 Pregnancy. Risk SummaryBased on its mechanism of action, TRODELVY can cause teratogenicity and/or embryo-fetal lethality when administered to pregnant woman. There are no available data in pregnant women to inform the drug-associated risk. TRODELVY contains genotoxic component, SN-38, and is toxic to rapidly dividing cells [see Clinical Pharmacology (12.1) and Nonclinical Toxicology (13.1)]. Advise pregnant women and females of reproductive potential of the potential risk to fetus.The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is - 4% and 15 20%, respectively.. Data. Animal dataThere were no reproductive and developmental toxicology studies conducted with sacituzumab govitecan-hziy.. 8.2 Lactation. Risk SummaryThere is no information regarding the presence of sacituzumab govitecan-hziy or SN-38 in human milk, the effects on the breastfed child, or the effects on milk production. Because of the potential for serious adverse reactions in breastfed child, advise women not to breastfeed during treatment and for month after the last dose of TRODELVY.. 8.3 Females and Males of Reproductive Potential. Pregnancy TestingVerify the pregnancy status of females of reproductive potential prior to the initiation of TRODELVY.. Contraception. FemalesTRODELVY can cause fetal harm when administered to pregnant woman [see Use in Specific Populations (8.1)]. Advise females of reproductive potential to use effective contraception during treatment with TRODELVY and for months after the last dose.. MalesBecause of the potential for genotoxicity, advise male patients with female partners of reproductive potential to use effective contraception during treatment with TRODELVY and for months after the last dose.. Infertility. FemalesBased on findings in animals, TRODELVY may impair fertility in females of reproductive potential [see Nonclinical Toxicology (13.1)].. 8.4 Pediatric Use. Safety and effectiveness of TRODELVY have not been established in pediatric patients.. 8.5 Geriatric Use. Of the patients who received TRODELVY, 264/795 (33%) of all patients were >= 65 years old, and 11% were >= 75 years old. No overall differences in safety and effectiveness were observed between these patients and younger patients.. 8.6 Hepatic Impairment. No adjustment to the starting dose is required when administering TRODELVY to patients with mild hepatic impairment (bilirubin <= 1.5 ULN and AST/ALT 3 ULN).The exposure of TRODELVY in patients with mild hepatic impairment (bilirubin <= ULN and AST ULN, or bilirubin >1.0 to 1.5 ULN and AST of any level; n=127 was similar to patients with normal hepatic function (bilirubin or AST ULN; n=529).The safety of TRODELVY in patients with moderate or severe hepatic impairment has not been established. TRODELVY has not been tested in patients with serum bilirubin 1.5 ULN, or AST and ALT 3 ULN, or AST and ALT 5 ULN and associated with liver metastases.No dedicated trial was performed to investigate the tolerability of TRODELVY in patients with moderate or severe hepatic impairment. No recommendations can be made for the starting dose in these patients.

WARNINGS AND PRECAUTIONS SECTION.

5 WARNINGS AND PRECAUTIONS. Hypersensitivity and Infusion-Related Reactions: Hypersensitivity reactions including severe anaphylactic reactions have been observed. Monitor patients for infusion-related reactions. Permanently discontinue TRODELVY if severe or life-threatening reactions occur. (5.3)Nausea/Vomiting: Use antiemetic preventive treatment and withhold TRODELVY for patients with Grade nausea or Grade 3-4 vomiting at the time of scheduled treatment. (5.4)Patients with Reduced UGT1A1 Activity: Individuals who are homozygous for the uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1)28 allele are at increased risk for neutropenia, febrile neutropenia, and anemia following initiation of TRODELVY treatment. (5.5)Embryo-Fetal Toxicity: TRODELVY can cause fetal harm. Advise patients of potential risk to fetus and to use effective contraception. (5.6, 8.1, 8.3). Hypersensitivity and Infusion-Related Reactions: Hypersensitivity reactions including severe anaphylactic reactions have been observed. Monitor patients for infusion-related reactions. Permanently discontinue TRODELVY if severe or life-threatening reactions occur. (5.3). Nausea/Vomiting: Use antiemetic preventive treatment and withhold TRODELVY for patients with Grade nausea or Grade 3-4 vomiting at the time of scheduled treatment. (5.4). Patients with Reduced UGT1A1 Activity: Individuals who are homozygous for the uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1)28 allele are at increased risk for neutropenia, febrile neutropenia, and anemia following initiation of TRODELVY treatment. (5.5). Embryo-Fetal Toxicity: TRODELVY can cause fetal harm. Advise patients of potential risk to fetus and to use effective contraception. (5.6, 8.1, 8.3). 5.1 Neutropenia. Severe, life-threatening, or fatal neutropenia can occur in patients treated with TRODELVY. Neutropenia occurred in 61% of patients treated with TRODELVY. Grade 3-4 neutropenia occurred in 47% of patients. Febrile neutropenia occurred in 7% of patients.Withhold TRODELVY for absolute neutrophil count below 1500/mm3 on Day of any cycle or neutrophil count below 1000/mm3 on Day of any cycle. Withhold TRODELVY for neutropenic fever. Dose modifications may be required due to neutropenia. [see Dosage and Administration (2.3)].. 5.2 Diarrhea. TRODELVY can cause severe diarrhea. Diarrhea occurred in 65% of all patients treated with TRODELVY. Grade 3-4 diarrhea occurred in 12% of all patients treated with TRODELVY. One patient had intestinal perforation following diarrhea. Neutropenic colitis occurred in 0.5% of patients.Withhold TRODELVY for Grade 3-4 diarrhea at the time of scheduled treatment administration and resume when resolved to <=Grade [see Dosage and Administration (2.3)]. At the onset of diarrhea, evaluate for infectious causes and if negative, promptly initiate loperamide, mg initially followed by mg with every episode of diarrhea for maximum of 16 mg daily. Discontinue loperamide 12 hours after diarrhea resolves. Additional supportive measures (e.g., fluid and electrolyte substitution) may also be employed as clinically indicated.Patients who exhibit an excessive cholinergic response to treatment with TRODELVY (e.g., abdominal cramping, diarrhea, salivation, etc.) can receive appropriate premedication (e.g., atropine) for subsequent treatments.. 5.3 Hypersensitivity and Infusion-Related Reactions. Serious hypersensitivity reactions including life-threatening anaphylactic reactions have occurred with TRODELVY treatment. Severe signs and symptoms included cardiac arrest, hypotension, wheezing, angioedema, swelling, pneumonitis, and skin reactions [see Contraindications (4)] .Hypersensitivity reactions within 24 hours of dosing occurred in 37% of patients treated with TRODELVY. Grade 3-4 hypersensitivity occurred in 2% of patients treated with TRODELVY. The incidence of hypersensitivity reactions leading to permanent discontinuation of TRODELVY was 0.3%. The incidence of anaphylactic reactions was 0.3%.Premedication for infusion reactions in patients receiving TRODELVY is recommended. Have medications and emergency equipment to treat infusion-related reactions, including anaphylaxis, available for immediate use when administering TRODELVY [see Dosage and Administration (2.2)]. Closely monitor patients for hypersensitivity and infusion-related reactions during each TRODELVY infusion and for at least 30 minutes after completion of each infusion [see Dosage and Administration (2.3)].Permanently discontinue TRODELVY for Grade infusion-related reactions [see Dosage and Administration (2.3)].. 5.4 Nausea and Vomiting. TRODELVY is emetogenic. Nausea occurred in 66% of all patients treated with TRODELVY. Grade nausea occurred in 4% of patients.Vomiting occurred in 39% of all patients treated with TRODELVY. Grade 3-4 vomiting occurred in 3% of these patients.Premedicate with two or three drug combination regimen (e.g., dexamethasone with either 5-HT3 receptor antagonist or an NK1 receptor antagonist as well as other drugs as indicated) for prevention of chemotherapy-induced nausea and vomiting (CINV) [see Dosage and Administration (2.2) ].Withhold TRODELVY doses for Grade nausea or Grade 3-4 vomiting at the time of scheduled treatment administration and resume with additional supportive measures when resolved to <=Grade [see Dosage and Administration (2.3)]. Additional antiemetics and other supportive measures may also be employed as clinically indicated. All patients should be given take-home medications with clear instructions for prevention and treatment of nausea and vomiting.. 5.5 Increased Risk of Adverse Reactions in Patients with Reduced UGT1A1 Activity. Patients homozygous for the uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1)28 allele are at increased risk for neutropenia, febrile neutropenia, and anemia; and may be at increased risk for other adverse reactions when treated with TRODELVY.The incidence of neutropenia and anemia was analyzed in 701 patients who received TRODELVY and had UGT1A1 genotype results. In patients homozygous for the UGT1A1 28 allele (n=87), the incidence of Grade 3-4 neutropenia was 67%. In patients heterozygous for the UGT1A128 allele (n=301), the incidence of Grade 3-4 neutropenia was 46%. In patients homozygous for the wild-type allele (n=313), the incidence of Grade 3-4 neutropenia was 46% [see Clinical Pharmacology (12.5)]. In patients homozygous for the UGT1A1 28 allele, the incidence of Grade 3-4 anemia was 25%. In patients heterozygous for the UGT1A128 allele, the incidence of Grade 3-4 anemia was 10%. In patients homozygous for the wild-type allele, the incidence of Grade 3-4 anemia was 11%.Closely monitor patients with known reduced UGT1A1 activity for adverse reactions. Withhold or permanently discontinue TRODELVY based on clinical assessment of the onset, duration and severity of the observed adverse reactions in patients with evidence of acute early-onset or unusually severe adverse reactions, which may indicate reduced UGT1A1 enzyme activity [see Dosage and Administration (2.3)]. 5.6 Embryo-Fetal Toxicity Based on its mechanism of action, TRODELVY can cause teratogenicity and/or embryo-fetal lethality when administered to pregnant woman. TRODELVY contains genotoxic component, SN-38, and targets rapidly dividing cells [see Clinical Pharmacology (12.1) and Nonclinical Toxicology (13.1)]. Advise pregnant women and females of reproductive potential of the potential risk to fetus. Advise females of reproductive potential to use effective contraception during treatment with TRODELVY and for months after the last dose. Advise male patients with female partners of reproductive potential to use effective contraception during treatment with TRODELVY and for months after the last dose [see Use in Specific Populations (8.1, 8.3)].