Avacopan

FDA Drug Information • Also known as: Tavneos

Brand Names: Tavneos
Dosage Form: CAPSULE
Product Type: DRUG FOR FURTHER PROCESSING

Description

11 DESCRIPTION TAVNEOS (avacopan) capsules contain avacopan, a C5aR antagonist. Avacopan is a chiral molecule containing two stereocenters and has a chemical name of (2 R ,3 S )-2-[4-(cyclopentylamino)phenyl]-1-(2-fluoro-6-methylbenzoyl)- N -[4-methyl-3-(trifluoromethyl)phenyl]piperidine-3-carboxamide. It has a molecular formula of C 33 H 35 F 4 N 3 O 2 and a molecular weight of 582 g/mol. Avacopan has the following structural formula: Avacopan is a white to pale yellow crystalline solid that is soluble in organic solvents and practically insoluble in water. TAVNEOS is available as a 10 mg capsule for oral administration. The capsules include the following inactive ingredients: Polyethylene glycol 4000 (PEG-4000), Polyoxyl-40 hydrogenated castor oil. The capsules are a light orange and yellow opaque bicolor gelatin capsule with a clear gelatin sealing band. The top half of the capsule is printed with "CCX168" in black ink. The capsule shell contains gelatin, red iron oxide, yellow iron oxide, and titanium dioxide, and the capsule sealing band contains gelatin and polysorbate 80. Chemical Structure

What Is Avacopan Used For?

1 INDICATIONS AND USAGE TAVNEOS is indicated as an adjunctive treatment of adult patients with severe active anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis (granulomatosis with polyangiitis [GPA] and microscopic polyangiitis [MPA]) in combination with standard therapy including glucocorticoids. TAVNEOS does not eliminate glucocorticoid use. TAVNEOS is a complement 5a receptor (C5aR) antagonist indicated as an adjunctive treatment of adult patients with severe active anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis (granulomatosis with polyangiitis [GPA] and microscopic polyangiitis [MPA]) in combination with standard therapy including glucocorticoids. TAVNEOS does not eliminate glucocorticoid use. ( 1 )

Dosage and Administration

2 DOSAGE AND ADMINISTRATION The recommended dosage is 30 mg (three 10 mg capsules) twice daily, with food. ( 2 ) 2.1 Recommended Evaluations Prior to Treatment Initiation Before initiating TAVNEOS, perform the following evaluations: Liver Function Tests: Obtain liver test panel (serum alanine aminotransferase [ALT], aspartate aminotransferase [AST], alkaline phosphatase, and total bilirubin) before initiating TAVNEOS. TAVNEOS is not recommended for use in patients with cirrhosis, especially those with severe hepatic impairment (Child-Pugh C) [see Warnings and Precautions (5.1) and Use in Specific Populations (8.7) ]. Hepatitis B (HBV) Serology: Screen patients for HBV infection by measuring HBsAg and anti-HBc . For patients with evidence of prior or current HBV infection, consult with a physician with expertise in managing hepatitis B regarding monitoring and consideration for HBV antiviral therapy before or during treatment with TAVNEOS [see Warnings and Precautions (5.3) ]. 2.2 Recommended Dosage and Administration The recommended dose of TAVNEOS is 30 mg (three 10 mg capsules) twice daily, with food. Advise patients that TAVNEOS capsules should not be crushed, chewed or opened. If a dose is missed, instruct the patient to wait until the usual scheduled time to take the next regular dose. Instruct the patient not to double the next dose. 2.3 Dosage Modifications Due to CYP3A4 Inhibitors Reduce the dosage of TAVNEOS to 30 mg once daily when used concomitantly with strong CYP3A4 inhibitors.

Side Effects (Adverse Reactions)

6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the labeling: Hepatotoxicity [see Warnings and Precautions (5.1) ] Hypersensitivity Reactions [see Warnings and Precautions (5.2) ] Hepatitis B Virus (HBV) Reactivation [see Warnings and Precautions (5.3) ] Serious Infections [see Warnings and Precautions (5.4) ] The most common adverse reactions (≥5%) are: nausea, headache, hypertension, diarrhea, vomiting, rash, fatigue, upper abdominal pain, dizziness, blood creatinine increased, and paresthesia. To report SUSPECTED ADVERSE REACTIONS, contact Amgen Inc. at 1-800-77-AMGEN (1-800-772-6436) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because the clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in practice. The identification of potential adverse drug reactions was based on safety data from the phase 3 clinical trial in which 330 patients with ANCA-associated vasculitis were randomized 1:1 to either TAVNEOS or prednisone [see Clinical Studies (14) ] . The mean age of patients was 60.9 years (range of 13 to 88 years), with a predominance of men (56.4%) and Caucasians (84.2%). The cumulative exposure to TAVNEOS was 138.7 patient-years. Additionally, two phase 2 trials were conducted in ANCA-associated vasculitis. The cumulative clinical trial exposure from the phase 2 and 3 trials equals 212.3 patient-years. The most frequent serious adverse reactions reported more frequently in patients treated with TAVNEOS than with prednisone were pneumonia (4.8% TAVNEOS vs. 3.7% prednisone), GPA (3.0% TAVNEOS vs. 0.6% prednisone), acute kidney injury (1.8% TAVNEOS vs. 0.6% prednisone), and urinary tract infection (1.8% TAVNEOS vs. 1.2% prednisone). Within 52 weeks, 4 patients in the prednisone treatment group (2.4%) and 2 patients in the TAVNEOS group (1.2%) died. There were no deaths in the phase 2 trials. In the phase 3 trial, seven patients (4.2%) in the TAVNEOS treatment group and 2 patients (1.2%) in the prednisone treatment group discontinued treatment due to hepatic-related adverse reactions, including hepatobiliary adverse reactions and liver enzymes abnormalities. The most frequent adverse reaction that led to drug discontinuation reported by > 1 patient and more frequently reported in patients treated with TAVNEOS was hepatic function abnormal (1.8%). The most common adverse reactions that occurred in ≥5% of patients and higher in the TAVNEOS group as compared with the prednisone group are listed in Table 1. Table 1. Adverse Reactions Reported in ≥5% of Patients and Higher in TAVNEOS Group vs. Prednisone Group in Phase 3 Trial Adverse Reaction Prednisone (N = 164) n (%) TAVNEOS (N = 166) n (%) N = number of patients randomized to treatment group in the Safety Population; n = number of patients in specified category. Nausea 34 (20.7) 39 (23.5) Headache 23 (14.0) 34 (20.5) Hypertension 29 (17.7) 30 (18.1) Diarrhea 24 (14.6) 25 (15.1) Vomiting 21 (12.8) 25 (15.1) Rash 13 (7.9) 19 (11.4) Fatigue 15 (9.1) 17 (10.2) Upper abdominal pain 10 (6.1) 11 (6.6) Dizziness 10 (6.1) 11 (6.6) Blood creatinine increased 8 (4.9) 10 (6.0) Paresthesia 7 (4.3) 9 (5.4) Hepatotoxicity and Elevated Liver Function Tests In the phase 3 trial, a total of 19 patients (11.6%) in the prednisone group and 22 patients (13.3%) in the TAVNEOS group had hepatic-related adverse reactions, including hepatobiliary adverse reactions and liver enzyme abnormalities. Study medication was paused or discontinued permanently due to hepatic-related adverse reactions in 5 patients (3.0%) in the prednisone group and 9 patients (5.4%) in the TAVNEOS group. Serious hepatic-related adverse reactions were reported in 6 patients (3.7%) in the prednisone group and 9 patients (5.4%) in the TAVNEOS group....

Drug Interactions

7 DRUG INTERACTIONS Strong and moderate CYP3A4 enzyme inducers: Avoid use. ( 7.1 ) Strong CYP3A4 enzyme inhibitors: Reduce avacopan dose to 30 mg once daily. ( 7.2 ) CYP3A4 substrates: Consider dose reduction of CYP3A4 substrates when co-administering TAVNEOS with CYP3A4 substrates. ( 7.3 ) 7.1 CYP3A4 Inducers Avacopan exposure is decreased when co-administered with strong CYP3A4 enzyme inducers such as rifampin [see Clinical Pharmacology (12.3) ] . Avoid coadministration of strong and moderate CYP3A4 inducers with TAVNEOS. 7.2 CYP3A4 Inhibitors Avacopan exposure is increased when co-administered with strong CYP3A4 enzyme inhibitors such as itraconazole [see Clinical Pharmacology (12.3) ] . Administer TAVNEOS 30 mg once daily when coadministered with strong CYP3A4 inhibitors. 7.3 CYP3A4 Substrates Avacopan is a moderate CYP3A4 inhibitor. Co-administration of avacopan and 40 mg simvastatin increases the systemic exposure of simvastatin. While taking TAVNEOS, limit simvastatin dosage to 10 mg daily (or 20 mg daily for patients who have previously tolerated simvastatin 80 mg daily for at least one year without evidence of muscle toxicity). Consider dose reduction of CYP3A4 substrates when co-administering TAVNEOS with CYP3A4 substrates. Consult the concomitant CYP3A4 substrate product information when considering administration of such products together with TAVNEOS [see Clinical Pharmacology (12.3) ] .

Contraindications

4 CONTRAINDICATIONS TAVNEOS is contraindicated in patients with serious hypersensitivity reaction to avacopan or to any of the excipients [see Warnings and Precautions (5.2) ]. Serious hypersensitivity to avacopan or to any of the excipients. ( 4 )

Pregnancy and Breastfeeding

8.1 Pregnancy Risk Summary There are no adequate and well-controlled studies with TAVNEOS in pregnant women to inform a drug-associated risk. In animal reproduction studies, oral administration of avacopan to pregnant hamsters and rabbits during the period of organogenesis produced no evidence of fetal harm with exposures up to approximately 5 and 0.6 times, respectively, the exposure at the maximum recommended human dose (MRHD) of 30 mg twice daily (on an area under the curve [AUC] basis). Avacopan caused an increase in the number of abortions in rabbits at an exposure 0.6 times the MRHD (see Animal Data ) . The background risk of major birth defects and miscarriage for the indicated population are unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Data Animal Data In an embryo-fetal development study with pregnant hamsters dosed by the oral route during the period of organogenesis from gestation days 6 to 12, avacopan produced an increase in the incidence of a skeletal variation, described as supernumerary ribs, at an exposure that was 5 times the MRHD (on an AUC basis with a maternal oral dose of 1000 mg/kg/day). No structural abnormalities were noted with exposures up to 5 times the MRHD (on an AUC basis with maternal oral doses up to 1000 mg/kg/day). In an embryo-fetal development study with pregnant rabbits dosed by the oral route during the period of organogenesis from gestation days 6 to 18, avacopan caused an increase in the number of abortions at an exposure 0.6 times the MRHD (on an AUC basis with a maternal oral dose of 200 mg/kg/day), however, no evidence of fetal harm was observed with such exposures. Maternal toxicity, as evidenced by decreased body weight gains, was observed at exposures 0.6 times and higher than the MRHD (on an AUC basis with maternal oral doses of 30 mg/kg/day and higher). In a prenatal and postnatal...

How Supplied

16 HOW SUPPLIED/STORAGE AND HANDLING TAVNEOS (avacopan) capsule is supplied as a 10 mg, hard, opaque yellow and light orange capsule with "CCX168" printed in black. Bottle containing 180 capsules with child resistant induction seal closure (NDC 73556-168-01) Bottle containing 30 capsules with child resistant induction seal closure (NDC 73556-168-02) Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Do not use if seal is broken or missing.

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.