Elinzanetant
FDA Drug Information • Also known as: Lynkuet
- Brand Names
- Lynkuet
- Route
- ORAL
- Dosage Form
- CAPSULE
- Product Type
- HUMAN PRESCRIPTION DRUG
Description
11 DESCRIPTION LYNKUET is an NK1 and NK3 receptor antagonist. The chemical name of elinzanetant is 2-[3,5-bis(trifluoromethyl)phenyl]-N-{4-(4-fluoro-2-methylphenyl)-6-[(7S,9aS)-7-(hydroxymethyl)hexahydropyrazino[2,1-c][1,4]oxazin-8(1H)-yl]pyridin-3-yl}-N,2-dimethylpropanamide having a molecular formula of C 33 H 35 F 7 N 4 O 3 and a molecular weight of 668.7. The structural formula of elinzanetant is: Elinzanetant is a white to yellowish powder and is practically insoluble in water and slightly soluble under acidic conditions. Each LYNKUET (elinzanetant) capsule for oral use contains 60 mg of elinzanetant and the following inactive ingredients: all-rac-α-Tocopherol, caprylocaproyl macrogolglycerides, glycerol monocaprylocaprate, glycerol mono-oleate, and polysorbate 80. The capsule is composed of edible ink, ferric oxide red, ferric oxide yellow, gelatin, sorbitol special-glycerin, and titanium dioxide. Chemical Structure
What Is Elinzanetant Used For?
1 INDICATIONS AND USAGE LYNKUET is indicated for the treatment of moderate to severe vasomotor symptoms (VMS) due to menopause. LYNKUET is a neurokinin 1 (NK1) and neurokinin 3 (NK3) receptor antagonist indicated for the treatment of moderate to severe vasomotor symptoms due to menopause. ( 1 )
Dosage and Administration
2 DOSAGE AND ADMINISTRATION The recommended dosage is 120 mg (two 60 mg capsules) orally once daily at bedtime with or without food. ( 2.2 ) Swallow capsules whole. Do not cut, crush, or chew capsules. ( 2.2 ) See full prescribing information for LYNKUET dosage modification due to drug interactions. ( 2.3 ) 2.1 Recommended Evaluation and Testing Before Initiation of LYNKUET Exclude pregnancy in females of reproductive potential [see Contraindications (4) ], Warnings and Precautions (5.3) , and Use in Specific Populations (8.3) ]. Perform baseline hepatic laboratory tests to evaluate for hepatic function and injury [including serum alanine aminotransferase (ALT), serum aspartate aminotransferase (AST), serum alkaline phosphatase (ALP), and serum bilirubin (total and direct)] before initiating treatment with LYNKUET. Do not start LYNKUET if ALT or AST is ≥ 2 times upper limit of normal (ULN) or if the total bilirubin is ≥ 2 times ULN [ see Warnings and Precautions (5.2) and Use in Specific Populations (8.7) ]. 2.2 Recommended Dosage The recommended dosage of LYNKUET is 120 mg (two 60 mg capsules) orally once daily at bedtime at about the same time each day. If a dose is missed at bedtime, take the next dose as scheduled on the following day. Do not take two doses on the same day to make up for a missed dose. Take LYNKUET with or without food. Take LYNKUET with water and swallow capsules whole. Do not cut, crush or chew capsules. 2.3 Dosage Modifications for Drug Interactions Dosage modifications for concomitant use with specific drugs are provided in Table 1 [see Drug Interactions (7.1) ]. Table 1. Dosage Modifications for Drug Interactions Concomitant Drug LYNKUET Dosage Strong CYP3A4 inhibitors and grapefruit (juice) Avoid concomitant use Moderate CYP3A4 inhibitors 60 mg (one capsule) orally once daily at bedtime [see Storage and Handling (16.2) ]. After discontinuation of the moderate CYP3A4 inhibitor (after 3 to 5 half-lives of the inhibitor), LYNKUET should be used at the usual dosage of 120 mg once daily. Strong and Moderate CYP3A4 inducers Avoid concomitant use
Side Effects (Adverse Reactions)
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Central Nervous System (CNS) Depressant Effect and Daytime Impairment [see Warnings and Precautions (5.1) ] Hepatic Transaminase Elevations [see Warnings and Precautions (5.2) ] The most frequently reported (≥5%) adverse reactions were headache, fatigue, dizziness and somnolence. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Bayer HealthCare Pharmaceuticals Inc. at 1-888-842-2937 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. The safety of LYNKUET was evaluated in three randomized, double-blind, placebo-controlled, multicenter clinical trials (OASIS 1, OASIS 2, OASIS 3 ) in 1420 women . In OASIS 1 and OASIS 2 combined, 793 women received LYNKUET or placebo for 12 weeks. After the first 12 weeks, 341 women randomized to LYNKUET continued to receive LYNKUET for another 14 weeks, with a total treatment duration of up to 26 weeks. In OASIS 1 and OASIS 2 combined, 349 women received placebo for the first 12 weeks and 348 women switched to LYNKUET for the next 14 weeks. In OASIS 3, 627 women received LYNKUET or placebo for up to 52 weeks to evaluate long-term safety [see Clinical Studies (14) ] . Common Adverse Reactions In OASIS 1 and 2 combined, through the first 12 weeks, commonly reported adverse reactions in the LYNKUET group (≥2% and greater than in placebo) were headache, fatigue, gastroesophageal reflux disease, dizziness, nausea, and somnolence. Similar adverse reactions were seen in OASIS 3. Table 2 shows adverse reactions reported in at least 2% of women and more commonly in women taking LYNKUET than placebo in OASIS 3. Table 2. Common Adverse Reactions Reported in ≥ 2% in LYNKUET and Greater than Placebo, Weeks 1-52 (OASIS 3) Adverse Reaction LYNKUET N=313 n (%) Placebo N=314 n (%) Headache 30 (9.6) 22 (7.0) Fatigue Includes asthenia. 23 (7.3) 9 (2.9) Dizziness Includes balance disorder, presyncope, vertigo, vertigo CNS origin, vertigo positional, and vestibular neuronitis. 19 (6.1) 6 (1.9) Somnolence Includes lethargy. 16 (5.1) 4 (1.3) Abdominal pain Includes abdominal discomfort, abdominal pain lower/upper. 14 (4.5) 8 (2.5) Rash Includes dermatitis, urticaria. 13 (4.2) 5 (1.6) Diarrhea 12 (3.8) 3 (1.0) Muscle spasms Includes muscle tightness. 10 (3.2) 2 (0.6) Adverse Reactions Leading to Discontinuation In OASIS 3, adverse reactions leading to treatment discontinuation (≥1% in LYNKUET and greater than placebo) were abdominal pain (1.6%), fatigue (1.6%), depression (1.6%) and headache (1.3%). Photosensitivity In the OASIS trials, mild to moderate events of photosensitivity occurred in 0.5% of patients receiving LYNKUET and 0.1% of patients receiving placebo. Onset of photosensitivity reactions ranged from day 1 to day 290. While discontinuation occurred in one patient, photosensitivity events in other patients resolved under continued treatment with LYNKUET [see Nonclinical Toxicology (13.2) ].
Drug Interactions
7 DRUG INTERACTIONS Strong CYP3A4 Inhibitors and grapefruit (juice): Avoid concomitant use with LYNKUET. ( 7.1 ) Moderate CYP3A4 Inhibitors: Reduce LYNKUET dosage to 60 mg once daily. ( 2.2 , 7.1 ) Strong and Moderate CYP3A4 Inducers: Avoid concomitant use with LYNKUET. ( 7.1 ) 7.1 Effects of Other Drugs on LYNKUET Elinzanetant is primarily metabolized via CYP3A4 enzyme. Table 3 describes drug interactions where concomitant use of another drug affects LYNKUET. Table 3: Drug Interactions: Concomitant Use of Other Drugs Affect the Use of LYNKUET Strong and Moderate CYP3A4 Inhibitors See www.fda.gov/CYPandTransporterInteractingDrugs for examples of strong and moderate CYP3A4 inhibitors, and CYP3A4 inducers. Prevention or Management Strong CYP3A4 Inhibitors and grapefruit (juice): Avoid concomitant use. Moderate CYP3A4 Inhibitors: Reduce the LYNKUET dosage [see Dosage and Administration (2.2) ]. Clinical Effect(s) Strong and moderate CYP3A4 inhibitors increase elinzanetant exposure, which may increase the risk of LYNKUET-associated adverse reactions [see Clinical Pharmacology (12.3) ]. Strong and Moderate CYP3A4 Inducers Prevention or Management Strong and moderate CYP3A4 inducers: Avoid concomitant use. Clinical Effect(s) Strong and moderate CYP3A4 inducers decrease elinzanetant exposure, which may reduce the effectiveness of LYNKUET. 7.2 Effects of LYNKUET on Other Drugs CYP3A4 Substrates Avoid concomitant use unless otherwise recommended in the Prescribing Information for CYP3A4 substrates where minimal concentration changes may lead to serious adverse reactions. See www.fda.gov/CYPandTransporterInteractingDrugs for examples of CYP3A4 substrates. Elinzanetant is a weak inhibitor of CYP3A4. Concomitant use of LYNKUET increases exposure of CYP3A4 substrates [see Clinical Pharmacology (12.3) ] , which may increase the risk of adverse reactions related to these substrates.
Contraindications
4 CONTRAINDICATIONS LYNKUET is contraindicated in pregnancy. Exposure to LYNKUET may cause pregnancy loss or stillbirth when administered during pregnancy [see Use in Specific Populations (8.1 , 8.3) ] . Pregnancy. ( 4 )
Pregnancy and Breastfeeding
8.1 Pregnancy Risk Summary LYNKUET is contraindicated in pregnancy [see Contraindications (4) ]. If pregnancy occurs during the use of LYNKUET, discontinue treatment. Based on findings from animal reproduction studies, LYNKUET may cause pregnancy loss or stillbirth but not fetal malformations when administered during pregnancy. There are no data on the use of LYNKUET in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies in rats, an increase in total litter loss or stillbirth and a decrease of neonatal pup viability was observed within the range of human therapeutic exposure when dams were treated orally throughout gestation and lactation [i.e., gestation day 6 to lactation day 21]. There was an increase in percentage of pre- and post-implantation embryo loss and decrease in fetal body weights at 16-fold the human therapeutic exposure when rat dams were treated orally prior to mating and through the early embryonic period [i.e., 22 days before mating to post-coitum day 6]. In rabbits, there was marked body weight loss and decreased food consumption in dams treated orally during gestation day 7 to 19 at doses equivalent to human therapeutic exposure (see Data ). Data Animal Data In a fertility and early embryonic development study in female rats, once daily oral doses of elinzanetant were administered 22 days before mating through post-coitum day 6. Increased percentage of pre-implantation and post-implantation embryo loss, resulting in reduced litter size, and lower fetal body weights were seen at the dose of 100 mg/kg/day (14-fold the AUC (0-24) at the human therapeutic dose). These effects were not observed following dosing at 25 mg/kg/day (3-fold the AUC (0-24) at the human therapeutic dose). In an embryo-fetal development study in pregnant rats, once daily oral doses of elinzanetant were administered throughout organogenesis from gestation day 6 to 17....
Overdosage
10 OVERDOSAGE There is no specific antidote for LYNKUET. In the case of overdose, the individual should be closely monitored, and supportive treatment should be considered based on signs and symptoms.
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING 16.1 How Supplied LYNKUET 60 mg capsules are supplied as opaque red, oblong, soft gelatin capsules, marked with white printing of "EZN60." LYNKUET capsules are available in the following package size: 60-count carton containing 5 blister cards (5 × 12 capsules) NDC 50419-475-05 16.2 Storage and Handling Store at 20°C to 25°C (68°F to 77°F) with excursions permitted from 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. For patients requiring a dosage modification (i.e., one 60 mg capsule once daily), instruct them to partially peel back the foil covering of the blister cell exposing only one of the two capsules. Store the remaining capsule in the original blister card in the carton until the next dose.
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.