Dasatinib

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Dasatinib
File:Dasatinib.svg
Systematic (IUPAC) name
N-(2-chloro-6-methylphenyl)-2-[[6-[4-(2-hydroxyethyl)-
1-piperazinyl]-2-methyl-4-pyrimidinyl]amino]-5-thiazole
carboxamide monohydrate
Clinical data
[[Regulation of therapeutic goods |Template:Engvar data]]
Pregnancy
category
  • AU: D
  • US: D (Evidence of risk)
Routes of
administration
Oral
Legal status
Legal status
Pharmacokinetic data
Protein binding 96%
Metabolism Hepatic
Biological half-life 1.3 to 5 hours
Excretion Fecal (85%), renal (4%)
Identifiers
CAS Number 302962-49-8
ATC code L01XE06 (WHO)
PubChem CID 3062316
Chemical data
Formula C22H26ClN7O2S
Molar mass 488.01 g/mol[[Script error: No such module "String".]]
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Dasatinib, also known as BMS-354825, is a cancer drug produced by Bristol-Myers Squibb and sold under the trade name Sprycel. Dasatinib is an oral dual BCR/ABL and Src family tyrosine kinases inhibitor approved for use in patients with chronic myelogenous leukemia (CML) after imatinib treatment and Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL). It is also being assessed for use in metastatic melanoma.

The drug is named after one of the inventor chemists, Jagabandhu Das, who was a member of the large discovery and development team at Bristol Myers Squibb.[1]

Efficacy

In a Phase I dose escalation study published in June 2006, dasatinib was tested in patients who were resistant to or who could not tolerate imatinib.[2] Complete hematological responses[3] were seen in 37 of 40 patients with chronic-phase CML. Major hematologic responses[4] were seen in 31 of 44 patients with accelerated-phase CML, CML in blast crisis, or Ph+ ALL.

Molecular Targets

The main targets of dasatinib, are BCRABL, SRC, Ephrins, EGFR.

Duration of benefit

Responses were maintained in 95% of patients with chronic-phase CML, with a median follow-up time of >12 months. In patients with accelerated-phase CML, 82% remained in remission, although with a median follow-up of only 5 months. Nearly all patients with CML in blast crisis or Ph+ ALL relapsed within 6 months.

Susceptible genotypes

Responses were seen in patients with all BCR/ABL genotypes, with the exception of T315I mutation, which confers resistance to both dasatinib, nilotinib and imatinib in vitro.

Toxicities

Neutropenia and myelosuppression were common toxic effects. Fifteen patients in the above-mentioned study developed pleural effusions, which were felt to be a side effect of dasatinib. Some of these patients required thoracentesis or pleurodesis to treat the effusions. Other adverse events included mild to moderate diarrhea, peripheral edema, and headache. A small number of patients developed abnormal liver function tests which returned to normal without dose adjustments. Mild hypocalcemia was also noted, but did not appear to cause any significant problems.

References

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External links

de:Dasatinib

fr:Dasatinib pl:Dazatynib pt:Dasatinibe

ru:Дазатиниб
  1. Das J; et al. (2006). "2-aminothiazole as a novel kinase inhibitor template. Structure-activity relationship studies toward the discovery of N-(2-chloro-6-methylphenyl)-2-[[6-[4-(2-hydroxyethyl)-1- piperazinyl)]-2-methyl-4-pyrimidinyl]amino)]-1,3-thiazole-5-carboxamide (dasatinib, BMS-354825) as a potent pan-Src kinase inhibitor". J Med Chem. 49 (23): 6819–32. doi:10.1021/jm060727j. PMID 17154512. 
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  3. Complete hematologic response was defined as normal white blood cell and platelet counts, no blasts in the peripheral blood, <5% myelocytes plus metamyelocytes in the peripheral blood, <20% basophils in the peripheral blood, and no extramedullary disease.
  4. The definition of a major hematologic response was sufficiently abstruse that the reader is referred to the original article (Talpaz et al., 2006) for details.