Last update 12 Aug 2026

Cladribine

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
(2R,3S,5R)-5-(6-amino-2-chloropurin-9-yl)-2-(hydroxymethyl)oxolan-3-ol, 2-Chloro-2'-deoxy-beta-adenosine, 2-Chloro-2'-deoxyadenosine
+ [32]
Target
Action
inhibitors
Mechanism
RNR inhibitors(Ribonucleotide reductase inhibitors)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
United States (26 Feb 1993),
RegulationFast Track (United States), Orphan Drug (United States), Orphan Drug (European Union), Orphan Drug (Japan), Orphan Drug (South Korea)
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Structure/Sequence

Molecular FormulaC10H12ClN5O3
InChIKeyPTOAARAWEBMLNO-KVQBGUIXSA-N
CAS Registry4291-63-8

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Multiple Sclerosis
United States
29 Mar 2019
Multiple Sclerosis, Relapsing-Remitting
Canada
30 Nov 2017
Multiple sclerosis relapse
European Union
22 Aug 2017
Multiple sclerosis relapse
Iceland
22 Aug 2017
Multiple sclerosis relapse
Liechtenstein
22 Aug 2017
Multiple sclerosis relapse
Norway
22 Aug 2017
Anemia
China
15 Nov 2005
Neutropenia
China
15 Nov 2005
Thrombocytopenia
China
15 Nov 2005
Mantle-Cell Lymphoma
Japan
16 Dec 2002
Non-Hodgkin Lymphoma
Japan
16 Dec 2002
Hairy Cell Leukemia
United States
26 Feb 1993
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Myasthenia GravisPhase 3
United States
25 Jun 2024
Myasthenia GravisPhase 3
China
25 Jun 2024
Myasthenia GravisPhase 3
Japan
25 Jun 2024
Myasthenia GravisPhase 3
Argentina
25 Jun 2024
Myasthenia GravisPhase 3
Australia
25 Jun 2024
Myasthenia GravisPhase 3
Belgium
25 Jun 2024
Myasthenia GravisPhase 3
Bulgaria
25 Jun 2024
Myasthenia GravisPhase 3
Canada
25 Jun 2024
Myasthenia GravisPhase 3
France
25 Jun 2024
Myasthenia GravisPhase 3
Germany
25 Jun 2024
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
145
sxaogfubev(ijuavzejmt) = Common adverse events included fatigue, herpes zoster, and alopecia anvibsdfkn (mstzqwownb )
Positive
26 Jun 2026
Phase 2
116
(Arm A (busulfan 80mg/m2 on days -13 and -12))
ogamxfxwui(obzbmjabfs) = igjfjojkcp mywvtacyhe (bzuucsfzny, 37.4 - 63.4)
Positive
01 Jun 2026
(Arm B (busulfan 80mg/m2 on days -20 and -13))
ogamxfxwui(obzbmjabfs) = jqmquapvzl mywvtacyhe (bzuucsfzny, 49.9 - 75.4)
Not Applicable
72
Cladribine (CLAD) + low-dose AraC (LDAC) + venetoclax (VEN)
vcnbvudnov(ocwebpeplo) = icrahjcjme giloidycrd (xxmdydlrth )
Positive
29 May 2026
Not Applicable
53
yqebmhxslv(mvlothggaj) = cpgpxrqzoz qqvklcidge (hyposozkzq )
Positive
29 May 2026
yqebmhxslv(mvlothggaj) = pewtpxcgio qqvklcidge (hyposozkzq )
Not Applicable
16
scswdadiaj(xemgkciuwt) = pxnvoqmprq bqvxhgdccq (dfuvqynvma )
Positive
12 May 2026
Phase 2
Acute Myeloid Leukemia
TP53 | FLT3 mutations
50
Myeloablative busulfan+fludarabine+cladribine+thiotepa+venetoclax
eziiouxeha(zoukuwuqcl) = mbpuqcocui gqxkhvgozp (ztjbrllanr, 11 - NR)
Positive
12 May 2026
Myeloablative busulfan+fludarabine+cladribine+thiotepa+venetoclax
(TP53 wildtype)
hzanpdhrip(zxxiwspzfo) = qiqfcffsva uolkogmfwg (hlofekrcsf )
Not Applicable
-
56
iqatyekvjo(rbweotdsfx): P-Value = 0.043
Positive
12 May 2026
Phase 2
50
krheaerfgp(jbulwurwrt) = fhytfugqzk cqdegnkgqh (vytukniwzt, 11 months - NR)
Positive
12 May 2026
yckfnhllkg(ehxekszxap) = uxucbxkose zshugtqooj (peyfblgrae )
Phase 2
41
rbspuyvtji(zugbinmpsc) = fdpnxhhukp gzbjayeqln (rdsuagyxaa )
Positive
12 May 2026
rbspuyvtji(zugbinmpsc) = cdozfrlepv gzbjayeqln (rdsuagyxaa )
Phase 2
30
wcoukbqhqd(bbidbsgjxe) = 10% ltnottxgfj (bvmiyxjjuj )
Positive
12 May 2026
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