Indications of Sunicent 50 mg
Gastrointestinal Stromal Tumor (GIST): Sunicent 50 mg is indicated for the treatment of gastrointestinal stromal tumor after disease progression on or intolerance to imatinib mesylate.Advanced Renal Cell Carcinoma (RCC): Sunicent 50 mg is indicated for the treatment ... Read moreGastrointestinal Stromal Tumor (GIST): Sunicent 50 mg is indicated for the treatment of gastrointestinal stromal tumor after disease progression on or intolerance to imatinib mesylate.Advanced Renal Cell Carcinoma (RCC): Sunicent 50 mg is indicated for the treatment of advanced renal cell carcinoma.Advanced Pancreatic Neuroendocrine Tumors (pNET): Sunicent 50 mg is indicated for the treatment of progressive, well-differentiated pancreatic neuroendocrine tumors in patients with unresectable locally advanced or metastatic disease.
Theropeutic Class
Targeted Cancer Therapy
Pharmacology
Sunicent 50 mg inhibits cellular signaling by targeting multiple receptor tyrosine kinases (RTKs).These include all receptors for platelet-derived growth factor (PDGF-Rs) and vascular endothelial growth factor receptors (VEGFRs), which play a role in both tumor angiogenesis and tumor cell proliferation. The simultaneous inhibition of these targets therefore reduces tumor vascularization and triggers cancer cell apoptosis and thus results in tumor shrinkage.Sunicent 50 mg also inhibits CD117 (c-KIT), the receptor tyrosine kinase that (when improperly activated by mutation) drives the majority of gastrointestinal stromal cell tumors. It has been recommended as a second-line therapy for patients whose tumors develop mutations in c-KIT that make them resistant to imatinib, or who the cannot tolerate the drug.In addition, Sunicent 50 mg binds other receptors. These include: RET, CD114, CD135. The fact that Sunicent 50 mg targets many different receptors, leads to many of its side effects such as the classic hand-foot syndrome, stomatitis, and other dermatologic toxicities.
Dosage & Administration of Sunicent 50 mg
Recommended Dose For GIST And RCC: The recommended dose of Sunicent 50 mg for gastrointestinal stromal tumor (GIST) and advanced renal cell carcinoma (RCC) is one 50 mg oral dose taken once daily, on a schedule of 4 weeks on treatment followed by 2 weeks off (Schedule 4/2). Sunicent 50 mg may be taken with or without food.Recommended Dose For pNET: The recommended dose of Sunicent 50 mg for pancreatic neuroendocrine tumors (pNET) is 37.5 mg taken orally once daily continuously without a scheduled off-treatment period. Sunicent 50 mg may be taken with or without food.Dose Modification: Dose interruption and/or dose modification in 12.5 mg increments or decrements is recommended based on individual safety and tolerability. The maximum dose administered in the Phase 3 pNET study was 50 mg daily.Strong CYP3A4 inhibitors such as ketoconazole may increas e Sunicent 50 mg plasma concentrations. Selection of an alternate concomitant medication with no or minimal enzyme inhibition potential is recommended. A dose reduction for Sunicent 50 mg to a minimum of 37.5 mg (GIST and RCC) or 25 mg (pNET) daily should be considered if Sunicent 50 mg must be co-administered with a strong CYP3A4 inhibitorCYP3A4 inducers such as rifampin may decreas e Sunicent 50 mg plasma concentrations. Selection of an alternate concomitant medication with no or minimal enzyme induction potential is recommended. A dose increase for Sunicent 50 mg to a maximum of 87.5 mg (GIST and RCC) or 62.5 mg (pNET) daily should be considered if Sunicent 50 mg must be co-administered with a CYP3A4 inducer. If dose is increased, the patient should be monitored carefully for toxicity
Dosage of Sunicent 50 mg
Recommended Dose For GIST And RCC: The recommended dose of Sunicent 50 mg for gastrointestinal stromal tumor (GIST) and advanced renal cell carcinoma (RCC) is one 50 mg oral dose taken once daily, on a schedule of 4 weeks on treatment followed by 2 weeks off (Schedule 4/2). Sunicent 50 mg may be taken with or without food.Recommended Dose For pNET: The recommended dose of Sunicent 50 mg for pancreatic neuroendocrine tumors (pNET) is 37.5 mg taken orally once daily continuously without a scheduled off-treatment period. Sunicent 50 mg may be taken with or without food.Dose Modification: Dose interruption and/or dose modification in 12.5 mg increments or decrements is recommended based on individual safety and tolerability. The maximum dose administered in the Phase 3 pNET study was 50 mg daily.Strong CYP3A4 inhibitors such as ketoconazole may increas e Sunicent 50 mg plasma concentrations. Selection of an alternate concomitant medication with no or minimal enzyme inhibition potential is recommended. A dose reduction for Sunicent 50 mg to a minimum of 37.5 mg (GIST and RCC) or 25 mg (pNET) daily should be considered if Sunicent 50 mg must be co-administered with a strong CYP3A4 inhibitorCYP3A4 inducers such as rifampin may decreas e Sunicent 50 mg plasma concentrations. Selection of an alternate concomitant medication with no or minimal enzyme induction potential is recommended. A dose increase for Sunicent 50 mg to a maximum of 87.5 mg (GIST and RCC) or 62.5 mg (pNET) daily should be considered if Sunicent 50 mg must be co-administered with a CYP3A4 inducer. If dose is increased, the patient should be monitored carefully for toxicity
Interaction of Sunicent 50 mg
Increased plasma cone with strong CYP3A4 inhibitors (eg ketoconazole, ritonavir, itraconazole, erythromycin, clarithromycin, grapefruit juice). Decreased plasma cone with strong CYP3A4 inducers [eg rifampin, dexamethasone, phenytoin, carbamazepine, phenobarb, St. John's wort (Hypericum perforatum)]. Anticoagulants eg warfarin, acenocoumarol (periodically monitor platelets, prothrombin time/INR & physical exam).
Contraindications
Hypersensitivity, Renal impairment
Side Effects of Sunicent 50 mg
Fatigue, GI disorders, skin discoloration, rash, palmar-plantar erythrodysesthesia, dry skin, hair color changes, mucosal inflammation, asthenia, dysguesia, anorexia, HTN, neutropenia.
Pregnancy & Lactation
Pregnancy Category D. There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.
Overdose Effects of Sunicent 50 mg
Treatment of overdose with Sunicent 50 mg should consist of general supportive measures. There is no specific antidote for overdosage with Sunicent 50 mg. If indicated, elimination of unabsorbed drug should be achieved by emesis or gastric lavage. Cases of accidental overdose have been reported; these cases were associated with adverse reactions consistent with the known safety profile of Sunicent 50 mg, or without adverse reactions. A case of intentional overdose involving the ingestion of 1,500 mg of Sunicent 50 mg in an attempted suicide was reported without adverse reaction. In non-clinical studies mortality was observed following as few as 5 daily doses of 500 mg/kg (3000 mg/m²) in rats. At this dose, signs of toxicity included impaired muscle coordination, head shakes, hypoactivity, ocular discharge, piloerection and gastrointestinal distress. Mortality and similar signs of toxicity were observed at lower doses when administered for longer durations.
Drug Classes
Targeted Cancer Therapy
Mode Of Action
Sunicent 50 mg inhibits cellular signaling by targeting multiple receptor tyrosine kinases (RTKs).These include all receptors for platelet-derived growth factor (PDGF-Rs) and vascular endothelial growth factor receptors (VEGFRs), which play a role in both tumor angiogenesis and tumor cell proliferation. The simultaneous inhibition of these targets therefore reduces tumor vascularization and triggers cancer cell apoptosis and thus results in tumor shrinkage.Sunicent 50 mg also inhibits CD117 (c-KIT), the receptor tyrosine kinase that (when improperly activated by mutation) drives the majority of gastrointestinal stromal cell tumors. It has been recommended as a second-line therapy for patients whose tumors develop mutations in c-KIT that make them resistant to imatinib, or who the cannot tolerate the drug.In addition, Sunicent 50 mg binds other receptors. These include: RET, CD114, CD135. The fact that Sunicent 50 mg targets many different receptors, leads to many of its side effects such as the classic hand-foot syndrome, stomatitis, and other dermatologic toxicities.
Pregnancy
Pregnancy Category D. There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.