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Medicine Overview of Parib 50mg Tablet
বাংলা
English
Brief Description
Indications
Breast Cancer: Olaparib is indicated as monotherapy for the treatment of adult patients with deleterious or suspected deleterious germline BRCA-mutated (gBRCAm), human epidermal growth factor receptor 2 (HER2)-negative metastatic breast cancer who have previously been treated with chemotherapy in the neoadjuvant, adjuvant or metastatic setting. Patients with hormone receptor (HR)-positive breast cancer should have progressed on or be considered inappropriate for endocrine therapy. Germline BRCA mutation must be confirmed before Olaparib treatment is initiated.Ovarian Cancer: Olaparib is indicated as monotherapy for the maintenance treatment of adult patients with platinum sensitive relapsed (PSR) high-grade epithelial ovarian, fallopian tube or primary peritoneal...
... Show morePharmacology
Olaparib is an inhibitor of poly (ADP-ribose) polymerase (PARP) enzymes, including PARP1, PARP2, and PARP3. PARP enzymes are involved in normal cellular homeostasis, such as DNA transcription, cell cycle regulation, and DNA repair. Olaparib has been shown to inhibit growth of select tumor cell lines in vitro and decrease tumor growth in mouse xenograft models of human cancer both as monotherapy or following platinum-based chemotherapy. Increased cytotoxicity and anti-tumor activity following treatment with olaparib were noted in cell lines and mouse tumor models with deficiencies in BRCA. In vitro studies have shown that olaparib-induced cytotoxicity may involve inhibition of PARP...
... Show moreDosage & Administration
Important Dosage Information: DO NOT substitute Olaparib capsules (50 mg) with Olaparib tablets (100 mg and 150 mg) on a milligram-to-milligram basis due to differences in the dosing and bioavailability of each formulation.Recommended Dosing: The recommended dose of Olaparib is 400 mg (eight 50 mg capsules) taken orally twice daily with or without food, for a total daily dose of 800 mg. Continue treatment until disease progression or unacceptable toxicity. If a patient misses a dose of Olaparib, instruct patients to take their next dose at its scheduled time. Swallow capsule whole. Do not chew, dissolve, or open capsule. Do...
... Show moreInteraction
Anticancer Agents: Clinical studies of Olaparib in combination with other myelosuppressive anticancer agents, including DNA damaging agents, indicate a potentiation and prolongation of myelosuppressive toxicity.Drugs That May Increase Olaparib Plasma Concentrations: Olaparib is primarily metabolized by CYP3A. In patients (n=57), co-administration of itraconazole, a strong CYP3A inhibitor, increased AUC of Olaparib by 170%. A moderate CYP3A inhibitor, fluconazole, is predicted to increase the AUC of Olaparib by 121%. Avoid concomitant use of strong CYP3A inhibitors such as itraconazole, telithromycin, clarithromycin, ketoconazole, voriconazole, nefazodone, posaconazole, ritonavir, lopinavir/ ritonavir, indinavir, saquinavir, nelfinavir, boceprevir, and telaprevir. Avoid use of moderate CYP3A inhibitors such...
... Show moreContraindications
Olaparib is contraindicated in patients who are hypersensitive to this drug or to any ingredient in the formulation.
Side Effects
The most common serious adverse reaction reported was anemia (2.4% olaparib vs 2.2% chemotherapy). The following serious ADRs were reported in one patient each: dermatitis allergic, neutrophil count decreased and platelet count decreased. The proportion of patients who permanently discontinued Olaparib due to adverse events was 4.9% in the Olaparib arm compared with 7.7% in the chemotherapy arm. Anemia and platelet count decrease were the only adverse reactions leading to discontinuation of Olaparib in more than one patient.
Pregnancy & Lactation
Pregnancy: Olaparib can cause fetal harm when administered to a pregnant woman based on its mechanism of action and findings in animals. Olaparib wasteratogenic and caused embryo-fetal toxicity in rats at exposures below those in patients receiving the recommended human dose of 400 mg twice daily. If this drug is used during pregnancy, or if a patient becomes pregnant while taking this drug, apprise the patient of the potential hazard to the fetus and the potential risk for loss of the pregnancy.Nursing Mothers: It is not known whether olaparib is excreted in human milk. Because many drugs are excreted in...
... Show morePrecautions & Warnings
Myelodysplastic Syndrome/Acute Myeloid Leukemia: Overall, the incidence of Myelodysplastic Syndrome/Acute Myeloid Leukemia (MDS/AML) in patients treated with Olaparib monotherapy in clinical trials, including long-term follow up, was <1.5% (21/1680) and the majority of events had a fatal outcome. Of these, 19/21 patients had a documented BRCA mutation, 1 patient had gBRCA wildtype and in 1 patient the BRCA mutation status was unknown. Additional cases of MDS/AML have been documented in patients treated with Olaparib in combination studies. The duration of therapy with Olaparib in patients who developed secondary MDS/cancer-therapy related AML varied from < 6 months to > 2 years....
... Show moreOverdose Effects
There is no specific treatment in the event of Olaparib overdose, and symptoms of overdose are not established. In the event of an overdose, physicians should follow general supportive measures and should treat symptomatically.
Therapeutic Class
Targeted Cancer Therapy
Storage Conditions
Store in a dry place below 30°C, protect from light. Keep out of the reach of children.
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