About This Medication
11 DESCRIPTION FABHALTA contains iptacopan, a complement Factor B inhibitor. The molecular weight of iptacopan hydrochloride monohydrate is approximately 477 g/mol. The chemical name is (2 S ,4 S )-2-(4-Carboxyphenyl)-4-ethoxy-1-[(5-methoxy-7-methyl-1 H -indol-4-yl)methyl]piperidin-1-ium chloride―water (1/1). The molecular formula is C 25 H 30 N 2 O 4 ·HCl H 2 O. The structure is shown below. Iptacopan hydrochloride monohydrate is a white or almost white to pale purplish-pink powder. FABHALTA is supplied as hard gelatin capsules for oral administration. The capsules are packaged in high-density polyethylene (HDPE) bottles with induction seals and child resistant caps. Each FABHALTA capsule contains 200 mg iptacopan (provided as 225.8 mg iptacopan hydrochloride monohydrate) and the capsule shell contains the following inactive ingredients: gelatin, red ferric oxide, titanium dioxide, yellow ferric oxide. The black printing ink contains ferrosoferric oxide, potassium hydroxide, propylene glycol, shellac, and strong ammonia solution. chemical structure of iptacopan hydrochloride monohydrate
活性成分
| 成分 |
规格 |
| Iptacopan Hydrochloride |
- |
适应证与用法
1 INDICATIONS AND USAGE FABHALTA is a complement factor B inhibitor, indicated for: the treatment of adults with paroxysmal nocturnal hemoglobinuria (PNH). ( 1.1 ) the reduction of proteinuria in adults with primary immunoglobulin A nephropathy (IgAN) at risk of rapid disease progression, generally a urine protein-to-creatinine ratio (UPCR) ≥ 1.5 g/g. ( 1.2 ) This indication is approved under accelerated approval based on reduction of proteinuria. It has not been established whether FABHALTA slows kidney function decline in patients with IgAN. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory clinical trial. the treatment of adults with complement 3 glomerulopathy (C3G), to reduce proteinuria. ( 1.3 ) 1.1 Paroxysmal Nocturnal Hemoglobinuria FABHALTA is indicated for the treatment of adults with paroxysmal nocturnal hemoglobinuria (PNH). 1.2 Immunoglobulin A Nephropathy FABHALTA is indicated to reduce proteinuria in adults with primary immunoglobulin A nephropathy (IgAN) at risk of rapid disease progression, generally a urine protein-to-creatinine ratio (UPCR) ≥ 1.5 g/g. This indication is approved under accelerated approval based on reduction of proteinuria. It has not been established whether FABHALTA slows kidney function decline in patients with IgAN. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory clinical trial. 1.3 Complement 3 Glomerulopathy FABHALTA is indicated for the treatment of adults with complement 3 glomerulopathy (C3G), to reduce proteinuria.
作用原理
12.1 Mechanism of Action Iptacopan binds to Factor B of the alternative complement pathway and regulates the cleavage of C3, generation of downstream effectors, and the amplification of the terminal pathway. In PNH, intravascular hemolysis (IVH) is mediated by the downstream membrane attack complex (MAC), while extravascular hemolysis (EVH) is facilitated by C3b opsonization. Iptacopan acts proximally in the alternative pathway of the complement cascade to control both C3b-mediated EVH and terminal complement-mediated IVH. In IgAN, the deposition of galactose deficient IgA1 (Gd-IgA1) containing immune complexes in the kidney locally activates the alternative complement pathway which is thought to contribute to the pathogenesis of IgAN. By binding to Factor B, iptacopan inhibits the alternative pathway. In C3G, overactivation of the alternative complement pathway leads to C3 cleavage within the glomeruli resulting in C3 deposition and inflammation, which are thought to contribute to the pathogenesis of C3G. By binding to Factor B, iptacopan inhibits the alternative pathway.
用法用量
2 DOSAGE AND ADMINISTRATION 200 mg orally twice daily with or without food. ( 2.2 ) 2.1 Recommended Vaccination and Prophylaxis for Encapsulated Bacterial Infections Vaccinate patients against encapsulated bacteria, including Streptococcus pneumoniae and Neisseria meningitidis (serogroups A, C, W, Y and B) , according to current ACIP recommendations at least 2 weeks prior to initiation of FABHALTA [see Warnings and Precautions (5.1)] . If urgent FABHALTA therapy is indicated in a patient who is not up to date with vaccines for Streptococcus pneumoniae and Neisseria meningitidis according to ACIP recommendations, provide the patient with antibacterial drug prophylaxis and administer these vaccines as soon as possible [see Warnings and Precautions (5.1)] . Healthcare providers who prescribe FABHALTA must enroll in the FABHALTA REMS [see Warnings and Precautions (5.2)] . 2.2 Recommended Dosage The recommended dosage of FABHALTA is 200 mg orally twice daily without regard to food. Swallow capsules whole. Do not open, break, or chew capsules. If a dose or doses are missed, advise the patient to take one dose of FABHALTA as soon as possible (even if it is soon before the next scheduled dose) and then to resume the regular dosing schedule. 2.3 PNH Patients Switching From Anti-C5 (eculizumab, ravulizumab) to FABHALTA To reduce the potential risk of hemolysis with abrupt discontinuation of other PNH therapies: For patients switching from eculizumab, initiate FABHALTA no later than 1 week after the last dose of eculizumab. For patients switching from ravulizumab, initiate FABHALTA no later than 6 weeks after the last dose of ravulizumab. There is no available information regarding the timeframe for initiation of FABHALTA after other PNH therapies.
Side Effects Overview
6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed in greater detail in other sections of the labeling: Serious Infections Caused by Encapsulated Bacteria [see Warnings and Precautions (5.1)] . Hyperlipidemia [see Warnings and Precautions (5.4)] . Most common adverse reactions in adults with PNH (incidence ≥ 10%) were headache, nasopharyngitis, diarrhea, abdominal pain, bacterial infection, viral infection, nausea and rash. ( 6.1 ) Most common adverse reactions in adults with IgAN (incidence ≥ 5%) were upper respiratory tract infection, lipid disorder, and abdominal pain. ( 6.1 ) Most common adverse reactions in adults with C3G (incidence ≥ 10%) were nasopharyngitis and viral infections. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Novartis Pharmaceuticals Corporation at 1-888-669-6682 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 practice. Paroxysmal Nocturnal Hemoglobinuria (PNH) The data described below reflects the exposure in adults with PNH who received FABHALTA (n = 62) or anti-C5 treatment (US-approved and non-US-approved eculizumab product or US-approved and non-US-approved ravulizumab product, n = 35) in APPLY-PNH [NCT04558918] and adults who received FABHALTA (n = 40) in APPOINT-PNH [NCT04820530] at the recommended dosing regimen for 24 weeks. In APPLY-PNH, serious adverse reactions were reported in 2 (3%) patients with PNH receiving FABHALTA. Serious adverse reactions included pyelonephritis, urinary tract infection and COVID-19. In APPOINT-PNH, serious adverse reactions were reported in 2 (5%) patients with PNH receiving FABHALTA. Serious adverse reactions included COVID-19 and bacterial pneumonia. The most common adverse reactions (≥ 10%) with FABHALTA were headache, nasopharyngitis, diarrhea, abdominal pain, bacterial infection, viral infection, nausea, and rash. Table 1 describes the adverse reactions that occurred in > 5% of patients treated with FABHALTA in the APPLY-PNH or APPOINT-PNH studies. Table 1: Adverse Reactions Reported in > 5% of Patients Treated with FABHALTA in APPLY-PNH or APPOINT-PNH Studies (24-Week Treatment Period) a Includes similar terms. b Nasopharyngitis contains: rhinitis allergic, upper respiratory tract infection, pharyngitis, rhinitis. c Bacterial infection contains: pyelonephritis, urinary tract infection, bronchitis bacterial, bronchitis haemophilus, cholecystitis, folliculitis, cellulitis, arthritis bacterial, sepsis, klebsiella infection, staphylococcal infection, Pseudomonas infection, hordeolum, pneumonia bacterial. d Viral infection contains: COVID-19, herpes zoster, oral herpes, nasal herpes, influenza A virus test positive, influenza. e Lipid disorder contains: dyslipidemia, blood cholesterol increased, low density lipoprotein increased, hypercholesterolemia, blood triglycerides increased, hyperlipidemia. f Rash contains: dermatitis allergic, acne, erythema multiforme, rash maculo-papular, rash erythematous. Adverse reactions APPLY-PNH APPOINT-PNH FABHALTA (N = 62) n (%) Anti-C5 (Eculizumab or Ravulizumab) (N = 35) n (%) FABHALTA (N = 40) n (%) Headache a 12 (19) 1 (3) 11 (28) Nasopharyngitis b 10 (16) 6 (17) 6 (15) Diarrhea 9 (15) 2 (6) 3 (8) Abdominal pain a 9 (15) 1 (3) 3 (8) Bacterial infection c 7 (11) 4 (11) 2 (5) Nausea 6 (10) 1 (3) 2 (5) Viral infection d 6 (10) 11 (31) 7 (18) Arthralgia 5 (8) 1 (3) 0 Thrombocytopenia a 4 (6) 0 0 Dizziness 4 (6) 0 1 (3) Systemic hypertension a 4 (6) 0 0 Lipid disorder e 4 (6) 0 3 (8) Rash f 2 (3) 0 4 (10) Clinically relevant adverse reactions reported in less than or equal to 5% of patients includes urticaria in one patient (3%) in APPOINT-PNH. Description of Select Adverse Reactions (graded per NCI CTCAE Version 4.03 unless noted otherwise) Platelet Count Decreased Of the 37 FABHALTA-treated patients who had normal platelet counts at baseline in APPLY-PNH, 43% experienced any Grade thrombocytopenia during the randomized treatment period. Three FABHALTA-treated patients in APPLY-PNH experienced decreased platelets that worsened to Grade ≥ 3 from baseline (one patient with normal platelets that worsened to Grade 4, one patient with baseline Grade 1 that worsened to Grade 4, and one patient with baseline Grade 3 that worsened to Grade 4). Immunoglobulin A Nephropathy (IgAN) The safety of FABHALTA was evaluated in APPLAUSE-IgAN, a randomized placebo-controlled, double-blind clinical study in adults with IgAN (eGFR ≥ 20 mL /min/1.73 m 2 at baseline). The data below reflect FABHALTA exposure in 235 patients with IgAN (eGFR ≥ 20 mL/min/1.73 m 2 at baseline) with a median duration of 43 weeks (up to 104 weeks) in APPLAUSE-IgAN. Table 2 describes the adverse reactions that occurred in ≥ 3 % of patients treated with FABHALTA and were ≥ 2% higher in frequency than placebo. All of these adverse reactions were mild or moderate in severity. Table 2: Adverse Reactions Reported in ≥ 3% of Adult Patients with IgAN (eGFR ≥ 20 mL /min/1.73 m 2 ) Treated with FABHALTA and ≥ 2% Higher in Frequency Than Placebo in APPLAUSE-IgAN 1 Includes similar terms. Adverse reaction FABHALTA (N = 235) n (%) Placebo (N = 235) n (%) Upper respiratory tract infection 20 (9) 16 (7) Lipid disorder 1 15 (6) 10 (4) Abdominal pain 1 15 (6) 5 (2) Nausea 8 (3) 2 (1) Dizziness 7 (3) 2 (1) Complement 3 Glomerulopathy (C3G) The safety of FABHALTA was evaluated in APPEAR-C3G, a randomized, placebo-controlled, double-blind trial in adult patients with native kidney C3G. No new adverse reactions were identified during the 6-month placebo-controlled period of APPEAR-C3G, in which 38 patients were treated with FABHALTA and 36 patients were treated with placebo. The most common adverse reactions that occurred in ≥ 10% of patients treated with FABHALTA and were ≥ 5% higher in frequency than placebo were nasopharyngitis (11% in FABHALTA, 3% placebo) and viral infections (29% in FABHALTA, 22% placebo), mainly respiratory infections. One patient (3%) on FABHALTA and none on placebo had a serious adverse reaction of pneumonia and bacteremia secondary to an encapsulated organism ( S. pneumoniae ).
警告与注意事项
5 WARNINGS AND PRECAUTIONS Monitoring of PNH Manifestations After FABHALTA Discontinuation: Monitor for signs of hemolysis after discontinuation. ( 5.3 ) Hyperlipidemia: Monitor serum lipid parameters periodically during treatment and initiate cholesterol-lowering medication, if indicated. ( 5.4 ) 5.1 Serious Infections Caused by Encapsulated Bacteria FABHALTA, a complement inhibitor, increases a patient’s susceptibility to serious, life-threatening, or fatal infections caused by encapsulated bacteria, including Streptococcus pneumoniae, Neisseria meningitidis (caused by any serogroup, including non-groupable strains), and Haemophilus influenzae type b. Life-threatening and fatal infections with encapsulated bacteria have occurred in both vaccinated and unvaccinated patients treated with complement inhibitors. The initiation of FABHALTA treatment is contraindicated in patients with unresolved serious infections caused by encapsulated bacteria. Complete or update vaccination against encapsulated bacteria at least 2 weeks prior to administration of the first dose of FABHALTA, according to the current ACIP recommendations for patients receiving a complement inhibitor. Revaccinate patients in accordance with ACIP recommendations considering the duration of therapy with FABHALTA. Note that ACIP recommends an administration schedule in patients receiving complement inhibitors that differs from the administration schedule in the vaccine prescribing information. If urgent FABHALTA therapy is indicated in a patient who is not up to date with vaccines against encapsulated bacteria according to ACIP recommendations, provide the patient with antibacterial drug prophylaxis and administer these vaccines as soon as possible. Various durations and regimens of antibacterial drug prophylaxis have been considered, but the optimal durations and drug regimens for prophylaxis and their efficacy have not been studied in unvaccinated or vaccinated patients receiving complement inhibitors, including FABHALTA. The benefits and risks of treatment with FABHALTA, as well as the benefits and risks of antibacterial drug prophylaxis in unvaccinated or vaccinated patients, must be considered against the known risks for serious infections caused by encapsulated bacteria. Vaccination does not eliminate the risk of serious encapsulated bacterial infections, despite development of antibodies following vaccination. Closely monitor patients for early signs and symptoms of serious infection and evaluate patients immediately if an infection is suspected. Inform patients of these signs and symptoms and instruct patients to seek immediate medical care if these signs and symptoms occur. Promptly treat known infections. Serious infection may become rapidly life-threatening or fatal if not recognized and treated early. Consider interruption of FABHALTA in patients who are undergoing treatment for serious infections, depending on the risks of interrupting treatment in the disease being treated. FABHALTA is available only through a restricted program under a REMS [see Warnings and Precautions (5.2)] . 5.2 FABHALTA REMS FABHALTA is available only through a restricted program under a REMS called FABHALTA REMS, because of the risk of serious infections caused by encapsulated bacteria [see Warnings and Precautions (5.1)] . Notable requirements of the FABHALTA REMS include the following: Prescribers must enroll in the REMS. Prescribers must counsel patients about the risk of serious infections caused by encapsulated bacteria. Prescribers must provide patients with the REMS educational materials. Prescribers must assess patient vaccination status for vaccines against encapsulated bacteria and vaccinate if needed according to current ACIP recommendations two weeks prior to the first dose of FABHALTA. Prescribers must provide a prescription for antibacterial drug prophylaxis if treatment must be started urgently, and the patient is not up to date with vaccines against encapsulated bacteria according to current ACIP recommendations at least two weeks prior to the first dose of FABHALTA. Pharmacies that dispense FABHALTA must be certified in the FABHALTA REMS and must verify prescribers are certified. Patients must receive counseling from the prescriber about the need to receive vaccinations against encapsulated bacteria per ACIP recommendations, the need to take antibiotics as directed by the prescriber, and the early signs and symptoms of serious infections. Patients must be instructed to carry the Patient Safety Card with them at all times during treatment and for 2 weeks following the last dose of FABHALTA. Further information is available by telephone: 1-833-99FABHA (1-833-993-2242) or online at www.FABHALTA-REMS.com. 5.3 Monitoring of PNH Manifestations After FABHALTA Discontinuation In PNH patients, after discontinuing treatment with FABHALTA, closely monitor patients for at least 2 weeks after the last dose for signs and symptoms of hemolysis. These signs include elevated lactate dehydrogenase (LDH) levels along with a sudden decrease in hemoglobin or PNH clone size, fatigue, hemoglobinuria, abdominal pain, dyspnea, major adverse vascular events (such as thrombosis, stroke and myocardial infarction), dysphagia, or erectile dysfunction. If discontinuation of FABHALTA is necessary, consider alternative therapy. If hemolysis occurs after discontinuation of FABHALTA, consider restarting treatment with FABHALTA, if appropriate, or initiating another treatment for PNH. 5.4 Hyperlipidemia FABHALTA may increase total cholesterol, LDL-cholesterol, and serum triglycerides [see Adverse Reactions (6.1)] . Of the 54 FABHALTA-treated patients who had a normal total cholesterol level at baseline in APPLY-PNH, 43% developed Grade 1 hypercholesterolemia during the randomized treatment period. One FABHALTA-treated patient in APPLY-PNH experienced increased total cholesterol that worsened to Grade 2 from Grade 1 at baseline. Of the 34 FABHALTA-treated patients who had a normal cholesterol level at baseline in APPOINT-PNH, 24% developed Grade 1 hypercholesterolemia during the core treatment period. Of the 60 FABHALTA-treated patients who had LDL-cholesterol ≤ 130 mg/dL at baseline in APPLY-PNH, 17% developed LDL-cholesterol > 130-160 mg/dL, 8% developed LDL-cholesterol > 160-190 mg/dL, and 7% developed LDL-cholesterol > 190 mg/dL during the randomized treatment period. Of the 36 FABHALTA-treated patients who had LDL-cholesterol ≤ 130 mg/dL at baseline in APPOINT-PNH, 11% developed LDL-cholesterol > 130-160 mg/dL and 3% developed LDL-cholesterol > 160-190 mg/dL. Of the 52 patients with normal triglyceride levels at baseline in APPLY-PNH, 23% developed Grade 1 elevated triglycerides during the randomized treatment period. Three FABHALTA-treated patients in APPLY-PNH experienced an increase in triglycerides from Grade 1 to Grade 2. Of the 37 FABHALTA-treated patients who had a normal triglyceride level at baseline in APPOINT-PNH, 27% developed Grade 1 elevated triglycerides in the core treatment period. Of the 102 FABHALTA-treated patients in APPLY-PNH and APPOINT-PNH, two patients required cholesterol-lowering medications. Monitor serum lipid parameters periodically during treatment with FABHALTA and initiate cholesterol-lowering medication, if indicated.
禁忌证
4 CONTRAINDICATIONS FABHALTA is contraindicated: in patients with serious hypersensitivity to iptacopan or any of the excipients. for initiation in patients with unresolved serious infection caused by encapsulated bacteria, including Streptococcus pneumoniae, Neisseria meningitidis, or Haemophilus influenzae type b. Serious hypersensitivity to iptacopan or any of the excipients. ( 4 ) Initiation in patients with unresolved serious infection caused by encapsulated bacteria. ( 4 )
药代动力学
12.3 Pharmacokinetics Absorption Following oral administration, iptacopan reached peak plasma concentrations approximately 2 hours post dose. At the recommended dosing regimen of 200 mg twice daily, steady state is achieved in approximately 5 days with minor accumulation (1.4-fold). Effect of Food Based on a food-effect study in healthy volunteers, a high-fat meal did not affect the exposure of iptacopan to a clinically meaningful degree. Distribution Iptacopan showed concentration-dependent plasma protein binding due to binding to the target Factor B in the systemic circulation. Iptacopan was 75% to 93% protein bound in vitro at the relevant clinical plasma concentrations. After administration of iptacopan 200 mg twice daily, the apparent volume of distribution at steady state was approximately 288 L. Elimination The terminal half-life (t 1/2 ) of iptacopan at steady state is approximately 25 hours after administration of FABHALTA 200 mg twice daily. The apparent clearance of iptacopan at steady state is 8 L/h after administration of FABHALTA 200 mg twice daily. Metabolism Metabolism is a predominant elimination pathway for iptacopan with approximately 50% of the dose attributed to oxidative pathways. Metabolism of iptacopan includes N-dealkylation, O-deethylation, oxidation, and dehydrogenation, mostly driven by CYP2C8 (98%) with a small contribution from CYP2D6 (2%). Iptacopan undergoes Phase 2 metabolism through glucuronidation by UGT1A1, UGT1A3, and UGT1A8. In plasma, iptacopan was the major component, accounting for 83% of the drug-related species. Two acyl glucuronides were the only metabolites detected in plasma and were minor, accounting for 8% and 5% of the drug-related species. Iptacopan metabolites are not pharmacologically active. Excretion In a human study, following a single 100 mg oral dose of [ 14 C]-iptacopan, mean total excretion of radioactivity (iptacopan and metabolites) was 72% in the feces and 25% in the urine, for a total mean excretion of > 96% of the dose. Specifically, 18% of the dose was excreted as parent iptacopan in the urine, and 17% of the dose was excreted as parent iptacopan in feces. Linearity/Non-linearity At doses between 25 mg and 200 mg twice daily, iptacopan was overall less than dose proportional. However, oral doses of 100 mg and 200 mg were approximately dose proportional. Specific Populations A population pharmacokinetic (PK) analysis was conducted on iptacopan data from 234 patients. Age, body weight, race, and gender did not have a clinically significant effect on iptacopan PK. Patients with Renal Impairment There were no clinically significant differences in the exposure of FABHALTA between patients with an eGFR in the range of 25 to < 90 mL/min compared to those with normal eGFR. No data are currently available in patients on dialysis. Patients with Hepatic Impairment In a study in subjects with normal hepatic function and patients with mild (Child-Pugh class A), moderate (Child-Pugh class B), or severe hepatic impairment (Child-Pugh class C), there was a negligible effect of hepatic impairment on the total (bound+unbound) exposure of iptacopan. However, unbound iptacopan AUC inf increased by 48%, 58% and 271% in patients with mild, moderate, and severe hepatic impairment, respectively, compared to subjects with normal hepatic function. Drug Interaction Studies Based on a clinical drug interaction study in healthy volunteers, iptacopan exposure did not change to a clinically relevant degree when coadministered with clopidogrel (a moderate CYP2C8 inhibitor) or cyclosporine (a P-gp, BCRP, and OATP 1B1/1B3 inhibitor). The exposure of digoxin (a P-gp substrate) and rosuvastatin (an OATP substrate) did not change to a clinically relevant degree when coadministered with iptacopan.