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SMILES
SMARTS
Stem definition Drug id CAS RN
arabinofuranosyl derivatives
691
123318-82-1
Description:
Molecule Description
Molfile
Inchi
Smiles
Synonyms:
ivozall
clofarabine
clofarex
clolar
evoltra
Clofarabine is sequentially metabolized intracellularly to the 5โ-monophosphate metabolite by deoxycytidine kinase and mono- and di-phospho-kinases to the active 5โ-triphosphate metabolite. Clofarabine has affinity for the activating phosphorylating enzyme, deoxycytidine kinase, equal to or greater than that of the natural substrate, deoxycytidine. Clofarabine inhibits DNA synthesis by decreasing cellular deoxynucleotide triphosphate pools through an inhibitory action on ribonucleotide reductase, and by terminating DNA chain elongation and inhibiting repair through incorporation into the DNA chain by competitive inhibition of DNA polymerases. The affinity of clofarabine triphosphate for these enzymes is similar to or greater than that of deoxyadenosine triphosphate. In preclinical models, clofarabine has demonstrated the ability to inhibit DNA repair by incorporation into the DNA chain during the repair process. Clofarabine 5โ-triphosphate also disrupts the integrity of mitochondrial membrane, leading to the release of the pro-apoptotic mitochondrial proteins, cytochrome C and apoptosis-inducing factor, leading to programmed cell death. Clofarabine is cytotoxic to rapidly proliferating and quiescent cancer cell types in vitro.
Molecular weight: 303.68
Formula: C10H11ClFN5O3
CLOGP: 0.34
LIPINSKI: 0
HAC: 8
HDO: 3
TPSA: 119.31
ALOGS: -1.79
ROTB: 2
Status: OFP
Legend: OFP - off patent OFM - off market ONP - on patent
Drug dosage:
None
ADMET properties:
Property Value Reference
BDDCS (Biopharmaceutical Drug Disposition Classification System)
3
Benet LZ, Broccatelli F, Oprea TI
S (Water solubility)
1 mg/mL
Benet LZ, Broccatelli F, Oprea TI
EoM (Fraction excreted unchanged in urine)
55 %
Benet LZ, Broccatelli F, Oprea TI
MRTD (Maximum Recommended Therapeutic Daily Dose)
4.23 ยตM/kg/day
Contrera JF, Matthews EJ, Kruhlak NL, Benz RD
BA (Bioavailability)
50 %
Kim MT, Sedykh A, Chakravarti SK, Saiakhov RD, Zhu H
Vd (Volume of distribution)
1.75 L/kg
Lombardo F, Berellini G, Obach RS
CL (Clearance)
7.70 mL/min/kg
Lombardo F, Berellini G, Obach RS
fu (Fraction unbound in plasma)
0.53 %
Lombardo F, Berellini G, Obach RS
t_half (Half-life)
4 hours
Lombardo F, Berellini G, Obach RS
Predicted pharmacokinetic/toxicological properties (PK-AZ):
Property Description Value Unit Confidence Similarity
azlogd74
LogD at pH 7.4
0.385
High
1
caco2-efflux
Caco-2 efflux ratio (BA/AB)
54.828
High
1
caco2-intrinsic-papp
Caco-2 intrinsic apparent permeability
2.805
10^-6 cm/s
High
1
dh-clint
Dog hepatocyte intrinsic clearance
1.400
uL/min/10^6 cells
High
1
dppb
Dog plasma protein binding (% unbound)
79.920
%
High
1
fcs-ppb
Fetal calf serum protein binding (% unbound)
88.190
%
High
1
herg
hERG pIC50
3.859
pIC50
High
1
hh-clint
Human hepatocyte intrinsic clearance
0.918
uL/min/10^6 cells
High
1
hlm-clint
Human liver microsomal intrinsic clearance
2.992
uL/min/mg protein
High
1
hppb
Human plasma protein binding (% unbound)
77.930
%
High
1
mdck-mdr1-bcrp-efflux
MDCK-MDR1-BCRP efflux ratio
5.272
High
1
mdck-mdr1-efflux
MDCK-MDR1 efflux ratio
10.965
High
1
mh-clint
Mouse hepatocyte intrinsic clearance
4.198
High
1
mppb
Mouse plasma protein binding (% unbound)
80.760
High
1
nih-mdck-mdr1-efflux
NIH MDCK-MDR1 efflux ratio
6.194
High
1
pfas-class
PFAS structural alert (1 = True, 0 = False)
0
pld-class
Phospholipidosis risk class (1 = positive, 0 = negative)
0
High
1
pppb
Pig plasma protein binding (% unbound)
84.090
%
High
1
rat-kpuu-brain
Rat brain Kpuu
0.021
%
High
1
rh-clint
Rat hepatocyte intrinsic clearance
1.807
uL/min/10^6 cells
High
1
rh-fuinc
Rat hepatocyte fraction unbound in incubation
94.840
%
High
1
rppb
Rat plasma protein binding (% unbound)
74.520
%
High
1
solubility-dd
Solubility at pH 7.4 in DMSO
924.698
uM
High
1
Approvals:
FDA Adverse Event Reporting System (Female)
MedDRA adverse event term Likelihood ratio Likelihood ratio threshold Patients taking drug having adverse event Patients taking drug not having adverse event Patients not taking drug having adverse event Patients not taking drug not having adverse event
Febrile neutropenia
190.11
42.20
92
2528
158257
90467570
Bone marrow failure
126.92
42.20
44
2576
32177
90593650
Mucosal inflammation
95.53
42.20
42
2578
57583
90568244
Capillary leak syndrome
90.59
42.20
20
2600
2747
90623080
Multiple organ dysfunction syndrome
82.57
42.20
40
2580
68296
90557531
Haematotoxicity
77.10
42.20
24
2596
12511
90613316
Septic shock
69.12
42.20
38
2582
84122
90541705
Staphylococcal bacteraemia
61.89
42.20
18
2602
7451
90618376
Pyrexia
61.86
42.20
85
2535
660400
89965427
Blood bilirubin increased
60.30
42.20
28
2592
43442
90582385
Graft versus host disease
56.04
42.20
17
2603
8127
90617700
Palmar-plantar erythrodysaesthesia syndrome
51.53
42.20
22
2598
28001
90597826
Staphylococcal sepsis
49.56
42.20
16
2604
9367
90616460
Leukaemia recurrent
44.69
42.20
10
2610
1457
90624370
Pancytopenia
42.66
42.20
32
2588
120231
90505596
FDA Adverse Event Reporting System (Male)
MedDRA adverse event term Likelihood ratio Likelihood ratio threshold Patients taking drug having adverse event Patients taking drug not having adverse event Patients not taking drug having adverse event Patients not taking drug not having adverse event
Febrile neutropenia
158.82
33.27
137
4062
185566
42431570
Blood bilirubin increased
121.01
33.27
66
4133
42186
42574950
Haematotoxicity
120.33
33.27
44
4155
10941
42606195
Oedema
100.62
33.27
63
4136
51938
42565198
Mucosal inflammation
98.51
33.27
61
4138
49313
42567823
Capillary leak syndrome
88.85
33.27
25
4174
2682
42614454
Palmar-plantar erythrodysaesthesia syndrome
87.51
33.27
42
4157
20540
42596596
Graft versus host disease in liver
81.44
33.27
21
4178
1618
42615518
Cytomegalovirus infection reactivation
80.43
33.27
33
4166
11145
42605991
Skin toxicity
74.55
33.27
27
4172
6522
42610614
Aplasia
74.52
33.27
25
4174
4818
42612318
Graft versus host disease in gastrointestinal tract
73.05
33.27
25
4174
5118
42612018
Multiple organ dysfunction syndrome
71.46
33.27
66
4133
96969
42520167
Aspartate aminotransferase increased
63.71
33.27
56
4143
77107
42540029
Hepatotoxicity
62.93
33.27
36
4163
25131
42592005
Alanine aminotransferase increased
62.89
33.27
59
4140
88347
42528789
Adenovirus infection
59.03
33.27
23
4176
6786
42610350
Epstein-Barr virus infection reactivation
54.44
33.27
17
4182
2610
42614526
Cystitis haemorrhagic
53.94
33.27
22
4177
7307
42609829
Graft versus host disease in skin
53.80
33.27
20
4179
5192
42611944
Hypogammaglobulinaemia
52.75
33.27
25
4174
11866
42605270
Sepsis
46.87
33.27
76
4123
199258
42417878
Streptococcal sepsis
46.41
33.27
14
4185
1914
42615222
Venoocclusive liver disease
43.69
33.27
21
4178
10281
42606855
Acute graft versus host disease in skin
43.66
33.27
19
4180
7405
42609731
Acute graft versus host disease
41.81
33.27
19
4180
8196
42608940
Bacterial sepsis
39.46
33.27
17
4182
6465
42610671
Pancytopenia
39.33
33.27
53
4146
117690
42499446
Staphylococcal infection
38.62
33.27
31
4168
37612
42579524
Nephropathy toxic
36.58
33.27
22
4177
16816
42600320
Neutropenia
36.35
33.27
68
4131
199363
42417773
Pneumonia fungal
33.87
33.27
17
4182
9129
42608007
FDA Adverse Event Reporting System (Geriatric)
MedDRA adverse event term Likelihood ratio Likelihood ratio threshold Patients taking drug having adverse event Patients taking drug not having adverse event Patients not taking drug having adverse event Patients not taking drug not having adverse event
Febrile neutropenia
331.43
34.55
213
6165
316554
110266367
Blood bilirubin increased
180.93
34.55
88
6290
75884
110507037
Haematotoxicity
179.34
34.55
61
6317
21021
110561900
Mucosal inflammation
178.22
34.55
94
6284
96047
110486874
Capillary leak syndrome
153.50
34.55
39
6339
4869
110578052
Multiple organ dysfunction syndrome
145.72
34.55
97
6281
151613
110431308
Palmar-plantar erythrodysaesthesia syndrome
130.17
34.55
58
6320
40967
110541954
Bone marrow failure
125.73
34.55
63
6315
57785
110525136
Aplasia
108.98
34.55
33
6345
7840
110575081
Skin toxicity
95.90
34.55
33
6345
11750
110571171
Alanine aminotransferase increased
92.68
34.55
80
6298
183693
110399228
Cytomegalovirus infection reactivation
92.15
34.55
36
6342
18297
110564624
Aspartate aminotransferase increased
89.64
34.55
74
6304
159862
110423059
Oedema
83.51
34.55
80
6298
209896
110373025
Adenovirus infection
82.56
34.55
29
6349
10965
110571956
Pyrexia
82.53
34.55
168
6210
898097
109684824
Sepsis
76.22
34.55
94
6284
327252
110255669
Cystitis haemorrhagic
75.89
34.55
28
6350
12181
110570740
Fusarium infection
71.97
34.55
19
6359
2752
110580169
Pancytopenia
70.65
34.55
73
6305
209540
110373381
Venoocclusive liver disease
69.91
34.55
28
6350
15179
110567742
Neutropenia
69.22
34.55
96
6282
374524
110208397
Hepatotoxicity
66.76
34.55
43
6335
63357
110519564
Transaminases increased
64.31
34.55
42
6336
63348
110519573
Graft versus host disease
60.93
34.55
27
6351
18779
110564142
Pneumonia fungal
57.04
34.55
24
6354
14730
110568191
Septic shock
56.94
34.55
57
6321
157471
110425450
Toxic erythema of chemotherapy
56.55
34.55
11
6367
401
110582520
Acute lymphocytic leukaemia recurrent
54.14
34.55
18
6360
5769
110577152
Acute graft versus host disease in skin
53.65
34.55
21
6357
10719
110572202
Staphylococcal infection
53.62
34.55
39
6339
69905
110513016
Hyperbilirubinaemia
51.16
34.55
28
6350
30643
110552278
Bacterial sepsis
50.72
34.55
20
6358
10406
110572515
Blood culture positive
50.00
34.55
19
6359
8957
110573964
Graft versus host disease in skin
47.89
34.55
18
6360
8236
110574685
Staphylococcal bacteraemia
47.84
34.55
22
6356
16666
110566255
Graft versus host disease in liver
45.86
34.55
13
6365
2452
110580469
Venoocclusive disease
44.82
34.55
16
6362
6334
110576587
Respiratory failure
43.97
34.55
58
6320
215274
110367647
Enterococcal infection
43.67
34.55
22
6356
20344
110562577
Graft versus host disease in gastrointestinal tract
42.91
34.55
17
6361
8951
110573970
Nephropathy toxic
40.15
34.55
23
6355
27455
110555466
Leukaemia recurrent
38.55
34.55
12
6366
3119
110579802
Fatigue
37.21
34.55
12
6366
1215946
109366975
Acute graft versus host disease
36.98
34.55
17
6361
12864
110570057
Acute myeloid leukaemia recurrent
36.46
34.55
13
6365
5126
110577795
Aspergillus infection
36.25
34.55
21
6357
25595
110557326
FDA Adverse Event Reporting System (Pediatric)
None
Pharmacologic Action:
Source Code Description
ATC
L01BB06
ANTINEOPLASTIC AND IMMUNOMODULATING AGENTS ANTINEOPLASTIC AGENTS ANTIMETABOLITES Purine analogues
FDA MoA
N0000000233
Nucleic Acid Synthesis Inhibitors
MeSH PA
D000963
Antimetabolites
MeSH PA
D000964
Antimetabolites, Antineoplastic
MeSH PA
D000970
Antineoplastic Agents
FDA EPC
N0000175595
Nucleoside Metabolic Inhibitor
CHEBI has role
CHEBI:35221
antimetabolite
CHEBI has role
CHEBI:35610
antineoplastic agent
Related Drugs by ATC class:
L01BB Purine analogues 5 drugs
Disease Relation SNOMED_ID DOID
Acute lymphoid leukemia
indication
91857003
DOID:9952
Mycosis
contraindication
3218000
DOID:1564
Hyperbilirubinemia
contraindication
14783006
DOID:2741
Viral disease
contraindication
34014006
DOID:934
Dehydration
contraindication
34095006
Renal failure syndrome
contraindication
42399005
DOID:1074
Low blood pressure
contraindication
45007003
Bacterial infectious disease
contraindication
87628006
Capillary leak syndrome
contraindication
87730004
DOID:14400
Liver function tests abnormal
contraindication
166603001
Disease of liver
contraindication
235856003
DOID:409
Sepsis syndrome
contraindication
238150007
Anemia
contraindication
271737000
DOID:2355
Pregnancy, function
contraindication
289908002
Thrombocytopenic disorder
contraindication
302215000
DOID:1588
Neutropenic disorder
contraindication
303011007
DOID:1227
Bone marrow depression
contraindication
307762000
Breastfeeding (mother)
contraindication
413712001
Chemotherapy-Induced Hyperuricemia
contraindication
๐ถ Veterinary Drug Use
None
๐ถ Veterinary products
None
Acid dissociation constants calculated using MoKa v3.0.0
Dissociation level Dissociation constant Type (acidic/basic)
pKa1
11.77
acidic
pKa2
12.4
acidic
pKa3
3.11
Basic
pKa4
2.3
Basic
Orange Book patent data (new drug applications)
None
Orange Book exclusivity data (new drug applications)
None
Bioactivity Summary:
External reference:
Pharmaceutical products: