Description
Indications
- Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML) in chronic phase (CP), previously treated with two or more tyrosine kinase inhibitors (TKIs). This indication is approved under accelerated approval based on major molecular response (MMR). Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s).
- Ph+ CML in CP with the T315I mutation.
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Pharmacology
Asciminib is an ABL/BCR-ABL1 tyrosine kinase inhibitor. Asciminib inhibits the ABL1 kinase activity of the BCRABL1 fusion protein, by binding to the ABL myristoyl pocket. In studies conducted in vitro or in animal models of CML, asciminib showed activity against wild-type BCR-ABL1 and several mutant forms of the kinase, including the T315I mutation.Asciminib steady-state exposure (AUC and Cmax) increase slightly more than dose proportional across the dose range of 10 to 200 mg (0.25 to 5 times the recommended 80 mg daily dosage) administered once or twice daily. Pharmacokinetic parameters are presented as geometric mean (CV%) unless otherwise stated.
Dosage & Administration
Recommended Dosage in Patients with Ph+ CML-CP, Previously Treated with Two or More TKIs: The recommended dose of Asciminib is 80 mg taken orally once daily at approximately the same time each day or 40 mg twice daily at approximately 12-hour intervals. The recommended dose of Asciminib is taken orally without food. Avoid food consumption for at least 2 hours before and 1 hour after taking Asciminib. Continue treatment with Asciminib as long as clinical benefit is observed or until unacceptable toxicity occurs.Recommended Dosage in Patients with Ph+ CML-CP with the T315I Mutation: The recommended dose of Asciminib is 200 mg taken orally twice daily at approximately 12-hour intervals. The recommended dose of Asciminib is taken orally without food. Avoid food consumption for at least 2 hours before and 1 hour after taking Asciminib.
Missed Dose: Once Daily Dosage Regimen: If a Asciminib dose is missed by more than approximately 12 hours, skip the dose and take the next dose as scheduled. Twice Daily Dosage Regimens: If a Asciminib dose is missed by more than approximately 6 hours, skip the dose and take the next dose as scheduled.
Dosage Modifications: Recommended Dosage Reductions for Asciminib for Adverse Reactions Dosage for Patients with CP-CML, Previously Treated with Two or More TKIs is 40 mg once daily or, 20 mg twice daily. Permanently discontinue Asciminib in patients unable to tolerate 40 mg once daily or, 20 mg twice daily. Dosage for Patients with Ph+ CML-CP with the T315I Mutation is 160 mg twice daily. Permanently discontinue Asciminib in patients unable to tolerate 160 mg twice daily.
Interaction
Strong CYP3A4 Inhibitors: Ascimib is a CYP3A4 substrate. Concomitant use of Ascimib with a strong CYP3A4 inhibitor increases both the Ascimib Cmax and AUC, which may increase the risk of adverse reactions. Closely monitor for adverse reactions in patients treated with Ascimib at 200 mg twice daily with concomitant use of strong CYP3A4 inhibitors.Itraconazole Oral Solution Containing Hydroxypropyl-β-cyclodextrin: Concomitant use of Ascimib with itraconazole oral solution containing hydroxypropyl-β-cyclodextrin decreases Ascimib Cmax and AUC, which
may reduce Ascimib efficacy. Avoid coadministration of Ascimib at all recommended doses with itraconazole oral solution containing hydroxypropyl-βcyclodextrin.Side Effects
The following clinically significant adverse reactions can occur with Ascimib and are discussed in greater detail in other sections of the labeling:- Myelosuppression
- Pancreatic Toxicity
- Hypertension
- Hypersensitivity
- Cardiovascular Toxicity
Pregnancy & Lactation
Pregnancy: Based on findings from animal studies and the mechanism of action, Asciminib can cause embryo-fetal harm when administered to a pregnant woman. There are no available data on Asciminib use in pregnant women to evaluate a drug associated risk.Lactation: There are no data on the presence of Asciminib or its metabolites in human milk, the effects on the breastfed child, or milk production. Because of the potential for serious adverse reactions in the breastfed child, advise women not to breastfeed during treatment with Asciminib and for 1 week after the last dose.
Females and Males of Reproductive Potential: Based on findings from animal studies, Asciminib can cause embryo-fetal harm when administered to a pregnant woman.
Pregnancy Testing: Verify the pregnancy status of females of reproductive potential prior to starting treatment with Asciminib.
Contraception: Females of reproductive potential should use effective contraception during treatment with Asciminib and for 1 week after the last dose.
Infertility Females: Based on findings in animals, Asciminib may impair fertility in females of reproductive potential. The reversibility of the effect on fertility is unknown.





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