Elacestrant
Generic Name: elacestrant
Brand Names:
Orserdu
11 DESCRIPTION Elacestrant hydrochloride is the salt form of elacestrant, an estrogen receptor antagonist, that has the chemical name: (6R)-6-(2-(N-(4-(2-(ethylamino)ethyl)benzyl)-N-ethylamino)-4-methoxyphenyl)-5,6,7,8-tetrahydronaphthalen-2-ol dihydrochloride. Elacestrant hydrochloride is the dihydrochloride salt and the molecular formula is C 30 H 38 N 2 O 2 .2HCL. The relative molecular mass is 531.56 g/mol.
Overview
11 DESCRIPTION Elacestrant hydrochloride is the salt form of elacestrant, an estrogen receptor antagonist, that has the chemical name: (6R)-6-(2-(N-(4-(2-(ethylamino)ethyl)benzyl)-N-ethylamino)-4-methoxyphenyl)-5,6,7,8-tetrahydronaphthalen-2-ol dihydrochloride. Elacestrant hydrochloride is the dihydrochloride salt and the molecular formula is C 30 H 38 N 2 O 2 .2HCL. The relative molecular mass is 531.56 g/mol.
Uses
1 INDICATIONS AND USAGE ORSERDU is indicated for the treatment of postmenopausal women or adult men with estrogen receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)‑negative, ESR1 -mutated advanced or metastatic breast cancer with disease progression following at least one line of endocrine therapy. ORSERDU is an estrogen receptor antagonist indicated for: treatment of postmenopausal women or adult men, with ER-positive, HER2-negative, ESR1 -mutated advanced or metastatic breast cancer with disease progression following at least one line of endocrine therapy ( 1 )
Dosage
2 DOSAGE AND ADMINISTRATION Select patients for treatment with ORSERDU based on the presence of ESR1 mutations. ( 2.1 ) The recommended dosage of ORSERDU is one 345 mg tablet taken orally, once daily, with food ( 2.2 ) Dose interruption, reduction, or permanent discontinuation may be required due to adverse reactions. ( 2.3 ) 2.1 Patient Selection Select patients for treatment of ER-positive, HER2-negative advanced or metastatic breast cancer with ORSERDU based on the presence of ESR1 mutation(s) in plasma specimen using an FDA-approved test [see Indications and Usage ( 1 ) and Clinical Studies ( 14 )] . Information on FDA-approved tests for detection of ESR1 mutations in breast cancer is available at: http://www.fda.gov/CompanionDiagnostics.
Side Effects
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Dyslipidemia [see Warnings and Precautions ( 5.1 )] The most common (>10%) adverse reactions, including laboratory abnormalities, of ORSERDU were musculoskeletal pain, nausea, increased cholesterol, increased AST, increased triglycerides, fatigue, decreased hemoglobin, vomiting, increased ALT, decreased sodium, increased creatinine, decreased appetite, diarrhea, headache, constipation, abdominal pain, hot flush, and dyspepsia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Stemline Therapeutics, Inc. at 1-877-332-7961 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Interactions
7 DRUG INTERACTIONS Strong and Moderate CYP3A4 Inducers : Avoid concomitant use with ORSERDU ( 7.1 ) Strong and Moderate CYP3A4 Inhibitors : Avoid concomitant use with ORSERDU ( 7.1 ) 7.1 Effect of Other Drugs on ORSERDU Strong and Moderate CYP3A4 Inhibitors Avoid concomitant use of strong or moderate CYP3A inhibitors with ORSERDU. Elacestrant is a CYP3A4 substrate. Concomitant use of a strong or moderate CYP3A4 inhibitor increase elacestrant exposure [see Clinical Pharmacology ( 12.3 )] , which may increase the risk of adverse reactions of ORSERDU. Strong and Moderate CYP3A4 Inducers Avoid concomitant use of strong or moderate CYP3A inducers with ORSERDU. Elacestrant is a CYP3A4 substrate.
Warnings
5 WARNINGS AND PRECAUTIONS Dyslipidemia: ORSERDU may cause hypercholesterolemia and hypertriglyceridemia. Monitor lipid profile prior to starting treatment and periodically thereafter. ( 5.1 ) Embryo-Fetal Toxicity: ORSERDU can cause fetal harm. Advise of the potential risk to a fetus and to use effective contraception. ( 5.2 , 8.1 , 8.3 ) 5.1 Dyslipidemia Hypercholesterolemia and hypertriglyceridemia occurred in patients taking ORSERDU at an incidence of 30% and 27%, respectively. The incidence of Grade 3 and 4 hypercholesterolemia and hypertriglyceridemia were 0.9% and 2.2%, respectively [see Adverse Reactions ( 6.1 )] . Monitor lipid profile prior to starting and periodically while taking ORSERDU. 4 CONTRAINDICATIONS None. None ( 4 )
Pregnancy
8.1 Pregnancy Risk Summary Based on findings in animals and its mechanism of action, ORSERDU can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )] . There are no available human data on ORSERDU use in pregnant women to inform the drug-associated risk. In an animal reproduction study, oral administration of elacestrant to pregnant rats during organogenesis caused embryo-fetal mortality and structural abnormalities at maternal exposures below the recommended dose based on AUC (see Data ) .
Storage
Storage and Handling Store at 20°C to 25°C (68°F to 77°F). Excursions permitted from 15°C to 30°C (59°F to 86°F). [see USP controlled room temperature].
Frequently Asked Questions
What is Elacestrant used for?▼
1 INDICATIONS AND USAGE ORSERDU is indicated for the treatment of postmenopausal women or adult men with estrogen receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)‑negative, ESR1 -mutated advanced or metastatic breast cancer with disease progression following at least one line of endocrine therapy. ORSERDU is an estrogen receptor antagonist indicated for: treatment of postmenopausal women or adult men, with ER-positive, HER2-negative, ESR1 -mutated advanced or metastatic breast cancer with disease progression following at least one line of endocrine therapy ( 1 )
What are the side effects of Elacestrant?▼
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Dyslipidemia [see Warnings and Precautions ( 5.1 )] The most common (>10%) adverse reactions, including laboratory abnormalities, of ORSERDU were musculoskeletal pain, nausea, increased cholesterol, increased AST, increased triglycerides, fatigue, decreased hemoglobin, vomiting, increased ALT, decreased sodium, increased creatinine, decreased appetite, diarrhea, headache, constipation, abdominal pain, hot flush, and dyspepsia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Stemline Therapeutics, Inc. at 1-877-332-7961 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Can I take Elacestrant during pregnancy?▼
8.1 Pregnancy Risk Summary Based on findings in animals and its mechanism of action, ORSERDU can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )] . There are no available human data on ORSERDU use in pregnant women to inform the drug-associated risk. In an animal reproduction study, oral administration of elacestrant to pregnant rats during organogenesis caused embryo-fetal mortality and structural abnormalities at maternal exposures below the recommended dose based on AUC (see Data ) .
What are the important warnings for Elacestrant?▼
5 WARNINGS AND PRECAUTIONS Dyslipidemia: ORSERDU may cause hypercholesterolemia and hypertriglyceridemia. Monitor lipid profile prior to starting treatment and periodically thereafter. ( 5.1 ) Embryo-Fetal Toxicity: ORSERDU can cause fetal harm. Advise of the potential risk to a fetus and to use effective contraception. ( 5.2 , 8.1 , 8.3 ) 5.1 Dyslipidemia Hypercholesterolemia and hypertriglyceridemia occurred in patients taking ORSERDU at an incidence of 30% and 27%, respectively. The incidence of Grade 3 and 4 hypercholesterolemia and hypertriglyceridemia were 0.9% and 2.2%, respectively [see Adverse Reactions ( 6.1 )] . Monitor lipid profile prior to starting and periodically while taking ORSERDU. 4 CONTRAINDICATIONS None. None ( 4 )
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.