Leqselvi Drug Information

LEQSELVI™ is indicated for the treatment of adult patients with severe alopecia areata. Limitations of Use LEQSELVI is not recommended for use in combination with other JAK inhibitors, biologic immunomodulators, cyclosporine, or other potent immunosuppressants. LEQSELVI is a Janus kinase (JAK) inhibitor indicated for the treatment of adults with severe alopecia areata.

Limitations of Use: LEQSELVI is not recommended for use in combination with other JAK inhibitors, biologic immunomodulators, cyclosporine or other potent immunosuppressants.

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 practice. The safety of LEQSELVI was evaluated in three randomized, placebo-controlled clinical trials (including a dose-ranging trial), two open-label trials, and two long-term extension trials in adult subjects with severe alopecia areata. These subjects had at least 50% scalp hair loss as measured by the Severity of Alopecia Tool (SALT) for more than six months.

A total of 1,730 subjects with alopecia areata were treated across all trials, representing 1,962.9 patient-years of exposure. There were 974 subjects who were exposed to either LEQSELVI 8 mg or deuruxolitinib 12 mg for at least 1 year and 104 subjects who were exposed for at least 3 years. Deuruxolitinib 12 mg is not approved.

Among 1,020 subjects enrolled in the placebo-controlled clinical trials, 640 subjects received LEQSELVI 8 mg twice daily, 380 subjects received deuruxolitinib 12 mg twice daily and 299 subjects received placebo twice daily for up to 24 weeks . Adverse Reactions occurring at ≥1% in the LEQSELVI 8 mg or deuruxolitinib 12 mg twice daily group and at a higher rate than in the placebo group are presented in Table 2. A total of 20 (3.1%) of subjects treated with LEQSELVI 8 mg were discontinued from the trials due to adverse reactions. Table 2: Adverse Reactions Reported in ≥1% of Subjects with Alopecia Areata Treated with LEQSELVI 8 mg Twice Daily or Deuruxolitinib 12 mg Twice Daily (and More Frequently than Placebo) in Placebo-Controlled Trials Over 24-Weeks a. %-study size adjusted percentages. b. Acne includes: acne, dermatitis acneiform, and acne pustular. c.

Hyperlipidemia includes: blood cholesterol increased, low density lipoprotein increased, blood triglycerides increased, hypercholesterolemia, hyperlipidemia, hypertriglyceridemia, and dyslipidaemia. d. Fatigue includes: fatigue, asthenia, hypersomnia, somnolence, and lethargy. e. Skin and soft issue infections includes: folliculitis, impetigo, skin infection, subcutaneous abscess, furuncle, paronychia, and pustule. f.

Anemia includes: anemia, hematocrit decreased, hemoglobin decreased, iron deficiency anemia, and red blood cell count decreased. g. Neutropenia includes: neutropenia and neutrophil count decreased. h. Thrombocytosis includes: thrombocytosis and platelet count increased. i.

Herpes includes: oral herpes, herpes simplex, genital herpes simplex, and nasal herpes. Placebo N = 299 n (%) a LEQSELVI 8 mg twice daily N = 640 n (%) a Deuruxolitinib 12 mg twice daily N = 380 n (%) a Acne b 13 66 52 Headache 30 83 44 Nasopharyngitis 21 54 33 Blood creatine phosphokinase increased 7 35 27 Hyperlipidemia c 10 30 19 Fatigue d 12 26 20 Skin and soft tissue infections e 2 11 15 Anemia f 3 18 16 Weight increased 4 19 10 Neutropenia g 3 10 10 Lymphopenia 2 2 7 Thrombocytosis h 0 18 6 Herpes i 2 8 6 Additional adverse drug reactions occurring in fewer than 1% of subjects: herpes zoster, lipase increased, and candidiasis. A total of 868 subjects in the long-term extension trials received treatment with LEQSELVI 8 mg twice daily and 991 subjects received treatment with deuruxolitinib 12 mg twice daily for 52 weeks.

In two open-label extension trials up to 3 years, 829 subjects received treatment with LEQSELVI 8 mg twice daily, and 1066 subjects received treatment with deuruxolitinib 12 mg twice daily. Specific Adverse Reactions (0-52 weeks) All Infections During the 24-week treatment period, infections were reported in 97 subjects (88.0 per 100 patient-years) treated with placebo, 222 subjects (101.5 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 153 subjects (117.0 per 100 patient years) treated with deuruxolitinib 12 mg twice daily. During the 0-52 week period, infections were reported in 435 subjects (95.5 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 408 subjects (74.1 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily.

Serious Infections During the 24-week treatment period, serious infections were reported in 1 subject (0.8 per 100 patient-years) treated with placebo, 5 subjects (1.8 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 2 subjects (1.2 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. During the 0-52 week period, serious infections were reported in 5 subjects (0.7 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 4 subjects (0.5 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. Herpes Zoster During the 24-week treatment period, opportunistic infections (herpes zoster) were reported in 0 subjects treated with placebo, 3 subjects (1.1 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 3 subjects (1.8 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily.

During the 0-52 week period, herpes zoster was reported in 10 subjects (1.5 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 15 subjects (1.9 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. Malignancies During the 0-52 week period, malignancy excluding NMSC was reported in 3 subjects (0.4 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 4 subjects (0.5 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. Thrombosis During the 0-52 week period, thrombosis was reported in 0 subjects treated with LEQSELVI 8 mg twice daily and 1 subject (0.1 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily who developed bilateral pulmonary embolism.

Laboratory Abnormalities Anemia During the 24-week treatment period, anemia was reported in 3 subjects (2.3 per 100 patient-years) treated with placebo, 19 subjects (6.9 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 16 subjects (9.6 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. During the 0-52 week period, anemia was reported in 17 subjects (2.6 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 38 subjects (5.0 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. Neutropenia During the 24-week treatment period, neutropenia was reported in 3 subjects (2.3 per 100 patient-years) treated with placebo, 10 subjects (3.6 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 10 subjects (6.0 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily.

During the 0-52 week period, neutropenia was reported in 11 subjects (1.6 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 15 subjects (1.9 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. Lymphopenia During the 24-week treatment period, lymphopenia was reported in 2 subjects (1.5 per 100 patient-years) treated with placebo, 2 subjects (0.7 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 7 subjects (4.2 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. During the 0-52 week period, lymphopenia was reported in 4 subjects (0.6 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 10 subjects (1.3 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily.

Lipid Elevations During the 24-week treatment period, lipid elevations were reported in 10 subjects (7.7 per 100 patient-years) treated with placebo, 30 subjects (11.0 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 18 subjects (10.9 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. During the 0-52 week period, lipid elevations were reported in 47 subjects (7.2 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 66 subjects (8.7 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. Creatine Phosphokinase (CPK) Elevations During the 24-week treatment period, CPK elevations were reported in 7 subjects (5.4 per 100 patient-years) treated with placebo, 35 subjects (12.9 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 27 subjects (16.6 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily.

During the 0-52 week period, CPK elevations were reported in 49 subjects (7.6 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 46 subjects (6.1 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. Thrombocytosis During the 24-week treatment period, an increase in platelet count was reported in 0 subjects treated with placebo, 18 subjects (6.6 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 6 subjects (3.6 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily. During the 0-52 week period, an increase in platelet count was reported in 20 subjects (3.0 per 100 patient-years) treated with LEQSELVI 8 mg twice daily and 26 subjects (3.4 per 100 patient-years) treated with deuruxolitinib 12 mg twice daily.

Adverse Reactions Observed after 52 weeks Thrombosis Venous thromboembolic events were reported in 4 subjects treated with deuruxolitinib 12 mg twice daily between Week 52 and Week 98. These 4 subjects experienced 7 thrombotic events (0.2 per 100 patient-years), including deep vein thrombosis (DVT), bilateral pulmonary embolism (PE), pulmonary embolism, and cerebral venous sinus thrombosis (CVT).

• Effect of Other Drugs on LEQSELVI Strong CYP3A and moderate or strong CYP2C9 inducers: Avoid concomitant use of LEQSELVI with strong CYP3A and moderate or strong CYP2C9 inducers. Deuruxolitinib is a CYP2C9 and CYP3A substrate. Concomitant use with a strong CYP3A and moderate or strong CYP2C9 inducer decreases deuruxolitinib exposure (C max and AUC), which may reduce LEQSELVI efficacy .
• Moderate or strong CYP2C9 inhibitors: LEQSELVI is contraindicated in patients taking moderate or strong CYP2C9 inhibitors . Deuruxolitinib is a CYP2C9 substrate. Concomitant use with a moderate or strong CYP2C9 inhibitor is estimated to increase deuruxolitinib exposure (C max and AUC), which may increase the risk of LEQSELVI serious adverse reactions such as thrombosis .
• Strong CYP3A4 and moderate or strong CYP2C9 inducers: Avoid concomitant use.
• Moderate or strong CYP2C9 inhibitors: Contraindicated.

Pregnancy Risk Summary Based on the findings from animal reproduction studies, deuruxolitinib may cause fetal harm during pregnancy. Available data from pregnancies reported in clinical trials with LEQSELVI are not sufficient to evaluate for a drug-associated risk for major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies, oral administration of deuruxolitinib to pregnant rats during the period of organogenesis at a dose 4.8 times the maximum recommended human dose (MRHD) resulted in reduced fetal weight and increased skeletal malformation.

Oral administration of deuruxolitinib to pregnant rabbits during the period of organogenesis at a dose 0.3 times the MRHD resulted in maternal toxicity, reduced fetal weight, and increased post-implantation loss. Oral administration of deuruxolitinib to pregnant rats during pregnancy and lactation periods at a dose 5 times the MRHD resulted in maternal toxicity, decreased pup survival, and adverse effects on postnatal development (see Data ). Advise pregnant women of the potential risk to a fetus. The background risks of major birth defects and miscarriage for the indicated population are unknown.

All pregnancies carry some risk of birth defects, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects is 2 to 4% of the general population and miscarriage occurs in 15 to 20% of clinically recognized pregnancies. Data Animal Data In an embryo-fetal development study, deuruxolitinib was administered to pregnant rats during the period of organogenesis at oral doses of 15, 30, and 60 mg/kg/day.

Reduced fetal weight and increased fetal skeletal malformation were noted at 60 mg/kg/day (4.8 times the MRHD based on AUC comparison) with no maternal toxicity. No embryo-fetal toxicity was observed at doses up to 30 mg/kg/day (equivalent to MRHD based on AUC comparison). In another embryo-fetal development study, deuruxolitinib was administered to pregnant rabbits during the period of organogenesis at oral doses of 6, 30, and 60 mg/kg/day. Reduced fetal weight and increased post-implantation loss were noted at 60 mg/kg/day (0.3 times the MRHD based on AUC comparison), at which maternal toxicity was observed.

No embryo-fetal toxicity was noted at doses up to 30 mg/kg/day (0.05 times the MRHD based on AUC comparison). In a pre- and postnatal development study in rats, deuruxolitinib was administered to pregnant rats during pregnancy and lactation periods at oral doses of 15, 30, and 75 mg/kg/day. Decreases in liveborn pups and pup survival, decreased pup activity and lower pup body weights, and adverse effects on reproductive outcome in the second generation females (decreased corpora lutea, implantation, and number of live embryos, and increased resorption and post-implantation loss) were noted at 75 mg/kg/day (5 times the MRHD based on AUC comparison), at which maternal toxicity was also observed. No adverse effects on pre- and postnatal development were noted at doses up to 30 mg/kg/day (0.8 times the MRHD based on AUC comparison).

Pediatric Use The safety and effectiveness of LEQSELVI have not been established in pediatric patients.

is contraindicated in patients who: Are CYP2C9 poor metabolizers . Are on concomitant moderate or strong CYP2C9 inhibitors . LEQSELVI is contraindicated in patients: Who are CYP2C9 poor metabolizers. Using moderate or strong CYP2C9 inhibitors.

There is no experience regarding human overdose with LEQSELVI. There is no specific antidote for overdose with LEQSELVI. Treatment should be symptomatic and supportive and monitor patients for signs and symptoms of adverse reactions . In case of overdose, consider contacting the Poison Center at 1-800-222-1222 for latest recommendations.