Indications of Juparib 150 mg
Breast Cancer: Juparib 150 mg 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 ... Read moreBreast Cancer: Juparib 150 mg 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 Juparib 150 mg treatment is initiated.Ovarian Cancer: Juparib 150 mg 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 cancer who are in response (complete response or partial response) to platinumbased chemotherapy.
Theropeutic Class
Targeted Cancer Therapy
Pharmacology
Juparib 150 mg 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. Juparib 150 mg 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 Juparib 150 mg were noted in cell lines and mouse tumor models with deficiencies in BRCA. In vitro studies have shown that Juparib 150 mg-induced cytotoxicity may involve inhibition of PARP enzymatic activity and increased formation of PARP-DNA complex, resulting in disruption of cellular homeostasis and cell death.
Dosage & Administration of Juparib 150 mg
There is a risk of medication errors between Juparib 150 mg tablets and Juparib 150 mg capsules. In order to minimize this risk, check the bottle labels to ensure that the drug being prepared and dispensed is Juparib 150 mg tablets and not Juparib 150 mg capsules. Prescribers should specify the formulation and dosage of Juparib 150 mg on each prescription.The recommended total daily dose of Juparib 150 mg tablets is 600 mg, taken as two 150 mg tablets twice daily. The 100 mg tablet is available for dose reduction.For treatment of ovarian cancer: Patients should start treatment with Juparib 150 mg no later than 8 weeks after completion of their final dose of the platinum-containing regimen. Patients should have recovered from prior hematologic toxicities prior to starting Juparib 150 mg therapy (hemoglobin, platelet, and neutrophil levels should be ≤ CTCAE grade 1).It is recommended that Juparib 150 mg treatment be continued until progression of the underlying disease or unacceptable toxicity. Juparib 150 mg should not be given in combination with other anti cancer therapy. Grapefruit or other similar fruit juices that are known to inhibit CYP3A should not be consumed while taking Juparib 150 mg.
Dosage of Juparib 150 mg
There is a risk of medication errors between Juparib 150 mg tablets and Juparib 150 mg capsules. In order to minimize this risk, check the bottle labels to ensure that the drug being prepared and dispensed is Juparib 150 mg tablets and not Juparib 150 mg capsules. Prescribers should specify the formulation and dosage of Juparib 150 mg on each prescription.The recommended total daily dose of Juparib 150 mg tablets is 600 mg, taken as two 150 mg tablets twice daily. The 100 mg tablet is available for dose reduction.For treatment of ovarian cancer: Patients should start treatment with Juparib 150 mg no later than 8 weeks after completion of their final dose of the platinum-containing regimen. Patients should have recovered from prior hematologic toxicities prior to starting Juparib 150 mg therapy (hemoglobin, platelet, and neutrophil levels should be ≤ CTCAE grade 1).It is recommended that Juparib 150 mg treatment be continued until progression of the underlying disease or unacceptable toxicity. Juparib 150 mg should not be given in combination with other anti cancer therapy. Grapefruit or other similar fruit juices that are known to inhibit CYP3A should not be consumed while taking Juparib 150 mg.
Interaction of Juparib 150 mg
Clinical studies of Juparib 150 mg in combination with other anti-cancer agents, including DNA damaging agents, indicate a potentiation and prolongation of myelosuppressive toxicity. The recommended Juparib 150 mg monotherapy dose is not suitable for combination with myelosuppressive anti-cancer agents. Juparib 150 mg is predominantly metabolised by CYP3A. Co-administered CYP3A inhibitors or inducers may respectively increase or decrease Juparib 150 mg plasma concentration.
Contraindications
Juparib 150 mg is contraindicated in patients who are hypersensitive to this drug or to any ingredient in the formulation.
Side Effects of Juparib 150 mg
The most common serious adverse reaction reported was anemia (2.4% Juparib 150 mg 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 Juparib 150 mg due to adverse events was 4.9% in the Juparib 150 mg arm compared with 7.7% in the chemotherapy arm. Anemia and platelet count decrease were the only adverse reactions leading to discontinuation of Juparib 150 mg in more than one patient.
Pregnancy & Lactation
Pregnancy: Juparib 150 mg can cause fetal harm when administered to a pregnant woman based on its mechanism of action and findings in animals. Juparib 150 mg 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 Juparib 150 mg is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from Juparib 150 mg, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Precautions & Warnings
Myelodysplastic Syndrome/Acute Myeloid Leukemia (MDS/AML): occurred in patients exposed to Juparib 150 mg, and the majority of reports were fatal. Monitor patients for hematological toxicity at baseline and monthly thereafter. Discontinue if MDS/AML is confirmed.Pneumonitis: occurred in patients exposed to Juparib 150 mg, and some cases were fatal. Interrupt treatment if pneumonitis is suspected. Discontinue if pneumonitis is confirmed.Embryo-Fetal Toxicity: Juparib 150 mg can cause fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception
Overdose Effects of Juparib 150 mg
There is no specific treatment in the event of Juparib 150 mg overdose, and symptoms of overdose are not established. In the event of an overdose, physicians should follow general supportive measures and should treat symptomatically.
Storage Conditions
Store in a dry place below 30°C, protect from light. Keep out of the reach of children.
Use In Special Populations
Pediatric Use: The safety and efficacy of Juparib 150 mg has not been established in pediatric patients.
Drug Classes
Targeted Cancer Therapy
Mode Of Action
Juparib 150 mg 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. Juparib 150 mg 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 Juparib 150 mg were noted in cell lines and mouse tumor models with deficiencies in BRCA. In vitro studies have shown that Juparib 150 mg-induced cytotoxicity may involve inhibition of PARP enzymatic activity and increased formation of PARP-DNA complex, resulting in disruption of cellular homeostasis and cell death.
Pregnancy
Pregnancy: Juparib 150 mg can cause fetal harm when administered to a pregnant woman based on its mechanism of action and findings in animals. Juparib 150 mg 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 Juparib 150 mg is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from Juparib 150 mg, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Pediatric Uses
Pediatric Use: The safety and efficacy of Juparib 150 mg has not been established in pediatric patients.