Rhapsido

Remibrutinib · Tablet · Oral

Uses

1 INDICATIONS AND USAGE RHAPSIDO ® is indicated for the treatment of chronic spontaneous urticaria (CSU) in adult patients who remain symptomatic despite H1 antihistamine treatment. Limitations of Use: RHAPSIDO is not indicated for other forms of urticaria. RHAPSIDO ® is a kinase inhibitor indicated for the treatment of chronic spontaneous urticaria (CSU) in adult patients who remain symptomatic despite H1 antihistamine treatment. ( 1 ) Limitations of Use: Not indicated for other forms of urticaria. ( 1 )

Dosage and administration

Recommended dosage is 25 mg orally twice daily with or without food. ( 2.1 ) Swallow tablets whole. Do not split, crush, or chew RHAPSIDO. ( 2.1 ) Interrupt RHAPSIDO for 3 to 7 days pre- and post-surgery. ( 2.2 ) 2.1 Recommended Dosage The recommended dosage is 25 mg taken orally twice daily with or without food. Swallow RHAPSIDO tablet whole with water. Do not split, crush, or chew RHAPSIDO. Missed Dose(s) If a dose or doses of RHAPSIDO is missed, skip the missed dose, and take the next dose at its regularly scheduled time. Do not take an extra dose(s) of RHAPSIDO to make up for a missed dose(s). 2.2 Temporary Interruption of RHAPSIDO for Surgery Interrupt treatment with RHAPSIDO for 3 to 7 days pre- and post-surgery depending upon the type of surgery and the risk of bleeding [see Warnings and Precautions (5.1), Adverse Reactions (6.1) and Drug Interactions (7.2)] .

Dosage forms and strengths

Tablets: 25 mg, light yellow, round, curved, unscored, film-coated tablet, debossed with “LV” on one side and Novartis logo on the other side. The tablet diameter is 7 mm. Tablets: 25 mg ( 3 )

Contraindications

None. None. ( 4 )

Warnings and precautions

Risk of Bleeding: Monitor for signs and symptoms of bleeding. Interrupt treatment with RHAPSIDO if bleeding is observed or pre- and post-surgery. Concomitant use of antithrombotic agents with RHAPSIDO may further increase risk of bleeding. ( 5.1 ) Live Attenuated Vaccines: Avoid live or live-attenuated vaccines in patients receiving RHAPSIDO. ( 5.2 ) 5.1 Risk of Bleeding In placebo-controlled studies in patients with CSU, mucocutaneous-related bleeding occurred in 9% of patients who received RHAPSIDO [see Adverse Reactions (6.1)] . Interrupt treatment with RHAPSIDO if bleeding is observed and resume if the benefit is expected to outweigh the risk. Interrupt treatment with RHAPSIDO for 3 to 7 days pre- and post-surgery or invasive procedures [see Dosage and Administration (2.2)] . Use of antithrombotic agents concomitantly with RHAPSIDO may further increase the risk of bleeding [see Drug Interactions (7.2)] . Consider the benefits and risks of antithrombotic agents when used concomitantly with RHAPSIDO. Monitor for signs and symptoms of bleeding. 5.2 Live Attenuated Vaccines No data are available on the effects of live or live-attenuated vaccines in patients receiving RHAPSIDO. The use of live and live-attenuated vaccines should be avoided in patients receiving RHAPSIDO.

Side effects

The most common adverse reactions (incidence ≥3%) were nasopharyngitis, bleeding, headache, nausea and abdominal pain. ( 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 drug reaction (ADR) 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 RHAPSIDO was based on a pooled safety population from two identical clinical trials of 52 weeks duration, REMIX-1 and REMIX-2 [see Clinical Studies (14)] . The pooled safety population consisted of 912 adult patients with CSU who remain symptomatic despite H1 antihistamine treatment and who received RHAPSIDO 25 mg orally twice daily (N=606) or placebo (N=306) for 24 weeks during the double-blind, controlled treatment period of the trial. Adverse reactions that occurred at an incidence greater than or equal to 3% and more common than the placebo group from the pooled safety population (REMIX-1 and REMIX-2) during the 24-week blinded, placebo-controlled treatment period are shown in Table 1. Table 1 Adverse Reactions with RHAPSIDO with Incidence ≥3% and More Common than Placebo in Adult Patients with CSU (REMIX-1 and REMIX-2) a includes acute sinusitis, chronic sinusitis, nasopharyngitis, pharyngitis, pharyngitis streptococcal, rhinitis, rhinitis allergic, and upper respiratory tract infection b includes conjunctival bleeding, contusion, ecchymosis, epistaxis, gingival bleeding, hematoma, hematuria, hemorrhagic ovarian cyst, intermenstrual bleeding, petechiae, purpura, and urinary occult blood c includes headache and migraine d includes abdominal discomfort, abdominal distention, abdominal pain and abdominal pain upper Adverse Reaction RHAPSIDO (N = 606) n (%) Placebo (N = 306) n (%) Nasopharyngitis a 67 (11%) 27 (9%) Bleeding b 55 (9%) 6 (2%) Headache c 41 (7%) 19 (6%) Nausea 18 (3%) 5 (2%) Abdominal Pain d 18 (3%) 6 (2%) Specific Adverse Reactions Bleeding In the pooled safety population (REMIX-1 and REMIX-2), bleeding occurred in 9% of patients treated with RHAPSIDO compared to 2% in the placebo group during the 24-week controlled treatment period [see Dosage and Administration (2.2), Warnings and Precautions (5.1), and Drug Interactions (7.2)] . Petechiae (4%) and contusion (2%) were the most commonly reported reactions in patients treated with RHAPSIDO. No severe bleeding reactions occurred. No association between bleeding reactions and low platelet counts was observed. In patients treated with RHAPSIDO, 0.5% experienced bleeding reactions that led to RHAPSIDO discontinuation, while none of these reactions occurred in the placebo group. Similar safety findings were observed through Week 52 [see Clinical Studies (14)] .

Drug interactions

Strong or Moderate CYP3A4 Inhibitors: Avoid concomitant use with RHAPSIDO. ( 7.1 ) Strong or Moderate CYP3A4 Inducers: Avoid concomitant use with RHAPSIDO. ( 7.1 ) P-gp Substrates: Exposure increases where minimal concentration changes may lead to serious adverse reactions: Monitor more frequently for adverse reactions when used concomitantly with RHAPSIDO. ( 7.2 ) Antithrombotic Agents: Consider the risks and benefits of concomitant use of antithrombotic agents with RHAPSIDO. ( 7.2 ) 7.1 Effect of Other Drugs on RHAPSIDO Strong or Moderate CYP3A4 Inhibitors Avoid use of RHAPSIDO with strong or moderate CYP3A4 inhibitors. Remibrutinib is a CYP3A4 substrate. Concomitant use with a strong or moderate CYP3A4 inhibitor increases remibrutinib exposure [see Clinical Pharmacology (12.3)] , which may increase the risk of RHAPSIDO adverse reactions. Strong or Moderate CYP3A4 Inducers Avoid use of RHAPSIDO with strong or moderate CYP3A4 inducers. Remibrutinib is a CYP3A4 substrate. Concomitant use with a strong or moderate CYP3A4 inducer decreases remibrutinib exposure [see Clinical Pharmacology (12.3)] , which may decrease the efficacy of RHAPSIDO. 7.2 Effect of RHAPSIDO on Other Drugs P-gp Substrates Monitor more frequently for adverse reactions when using RHAPSIDO with P-glycoprotein (P-gp) substrates where minimal concentration changes may lead to serious adverse reactions (e.g., digoxin). Remibrutinib is a P-gp inhibitor. Remibrutinib increases exposure of P-gp substrates, which may increase the risk of adverse reactions related to P-gp substrates [see Clinical Pharmacology (12.3)] . Antithrombotic Agents Consider the risks and benefits of concomitant administration of antithrombotic agents with RHAPSIDO [see Dosage and Administration (2.2), Warnings and Precautions (5.1), and Adverse Reactions (6.1)] . No data are available on concomitant use of RHAPSIDO with anticoagulants. The concomitant use of RHAPSIDO and anticoagulants was not allowed in clinical studies. Use of the antiplatelet agents, acetyl salicylic acid at doses up to 100 mg daily or clopidogrel up to 75 mg daily, was allowed in the RHAPSIDO clinical studies.

Use in specific populations

Mild, Moderate, or Severe Hepatic Impairment: Avoid use of RHAPSIDO. ( 8.6 ) 8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to RHAPSIDO during pregnancy. Pregnant women exposed to RHAPSIDO and healthcare providers are encouraged to contact Novartis Pharmaceuticals Corporation at 1-888-669-6682. Risk Summary Available data on the use of RHAPSIDO during pregnancy are insufficient to evaluate for a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. In animal reproduction studies, oral administration of remibrutinib to pregnant rabbits during organogenesis at exposures 141-times the human exposure at the maximum recommended human dose (MRHD) of 25 mg twice daily based on area under the curve (AUC) resulted in adverse developmental outcomes including external malformations. No adverse developmental effects were observed with oral administration of remibrutinib to pregnant rats during organogenesis at exposures up to 126-times the human exposure at the MRHD (see Data) . The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data In an embryo-fetal development (EFD) study in pregnant rabbits, remibrutinib was administered orally at doses of 100, 300, and 450 mg/kg/day during the period of organogenesis. Increased fetal external malformations (e.g. open/opaque eyes, small jaws, hyperflexion of forelimbs) and maternal toxicity (transiently reduced food consumption and adverse clinical signs) occurred at 300 mg/kg/day (141-times the MRHD based on AUC). The fetal findings were considered unlikely to be secondary to the maternal toxicity. The dose of 450 mg/kg/day was not tolerated by the pregnant rabbits. In an EFD study in pregnant rats, remibrutinib was administered orally at doses of 100, 300, and 1000 mg/kg/day during the period of organogenesis. Remibrutinib did not cause adverse effects to the fetus at exposures up to 126 times that at the MRHD based on AUC. In a pre- and postnatal development (PPND) study, remibrutinib was administered orally to pregnant rats at doses of 100, 300, and 1000 mg/kg/day from gestation day 6 to lactation day (LD) 21. Remibrutinib induced adverse effects at 1000 mg/kg/day (approximately 194 times the MRHD based on body surface area [BSA]), affected maternal animals (moribundity and clinical signs of toxicity, slightly longer gestation lengths) and offspring up to LD1 (slightly higher mean number of stillborn, dead, or missing pups, and smaller mean litter size). No adverse effects at doses up to 1000 mg/kg/day were noted in the surviving offspring developing into adulthood. No effects were observed at 300 mg/kg/day (approximately 58 times the MRHD based on BSA). 8.2 Lactation Risk Summary No data are available regarding the presence of remibrutinib in either human or animal milk, its effects on the breastfed child, or on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for RHAPSIDO and any potential adverse effects on the breastfed child from RHAPSIDO or from the underlying maternal condition. 8.4 Pediatric Use The safety and effectiveness of RHAPSIDO have not been established in pediatric patients. 8.5 Geriatric Use Of the total number of patients treated with RHAPSIDO in clinical studies for CSU, 53 (8.7%) were 65 to 85 years of age, with no patients over 85 years of age [see Clinical Studies (14)] . There were no observed differences in safety and/or effectiveness in geriatric patients compared to younger adult patients. 8.6 Hepatic Impairment RHAPSIDO exposure is increased in patients with mild, moderate, or severe hepatic impairment (Child-Pugh Class A, B, and C) relative to patients with normal hepatic function. Avoid use of RHAPSIDO in patients with mild, moderate or severe hepatic impairment (Child-Pugh Class A, B, and C) [see Clinical Pharmacology (12.3)] .

Pregnancy

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to RHAPSIDO during pregnancy. Pregnant women exposed to RHAPSIDO and healthcare providers are encouraged to contact Novartis Pharmaceuticals Corporation at 1-888-669-6682. Risk Summary Available data on the use of RHAPSIDO during pregnancy are insufficient to evaluate for a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. In animal reproduction studies, oral administration of remibrutinib to pregnant rabbits during organogenesis at exposures 141-times the human exposure at the maximum recommended human dose (MRHD) of 25 mg twice daily based on area under the curve (AUC) resulted in adverse developmental outcomes including external malformations. No adverse developmental effects were observed with oral administration of remibrutinib to pregnant rats during organogenesis at exposures up to 126-times the human exposure at the MRHD (see Data) . The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data In an embryo-fetal development (EFD) study in pregnant rabbits, remibrutinib was administered orally at doses of 100, 300, and 450 mg/kg/day during the period of organogenesis. Increased fetal external malformations (e.g. open/opaque eyes, small jaws, hyperflexion of forelimbs) and maternal toxicity (transiently reduced food consumption and adverse clinical signs) occurred at 300 mg/kg/day (141-times the MRHD based on AUC). The fetal findings were considered unlikely to be secondary to the maternal toxicity. The dose of 450 mg/kg/day was not tolerated by the pregnant rabbits. In an EFD study in pregnant rats, remibrutinib was administered orally at doses of 100, 300, and 1000 mg/kg/day during the period of organogenesis. Remibrutinib did not cause adverse effects to the fetus at exposures up to 126 times that at the MRHD based on AUC. In a pre- and postnatal development (PPND) study, remibrutinib was administered orally to pregnant rats at doses of 100, 300, and 1000 mg/kg/day from gestation day 6 to lactation day (LD) 21. Remibrutinib induced adverse effects at 1000 mg/kg/day (approximately 194 times the MRHD based on body surface area [BSA]), affected maternal animals (moribundity and clinical signs of toxicity, slightly longer gestation lengths) and offspring up to LD1 (slightly higher mean number of stillborn, dead, or missing pups, and smaller mean litter size). No adverse effects at doses up to 1000 mg/kg/day were noted in the surviving offspring developing into adulthood. No effects were observed at 300 mg/kg/day (approximately 58 times the MRHD based on BSA).

Pediatric use

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

Geriatric use

8.5 Geriatric Use Of the total number of patients treated with RHAPSIDO in clinical studies for CSU, 53 (8.7%) were 65 to 85 years of age, with no patients over 85 years of age [see Clinical Studies (14)] . There were no observed differences in safety and/or effectiveness in geriatric patients compared to younger adult patients.

Overdosage

Consider contacting the poison help line (1-800-222-1222) or a medical toxicologist for overdose management recommendations.

Description

(remibrutinib) is a kinase inhibitor. Its empirical formula (remibrutinib) is C 27 H 27 F 2 N 5 O 3 . The chemical name for remibrutinib is N-(3-{6-Amino-5-[2-(N-methylprop-2-enamido)ethoxy]pyrimidin-4-yl}-5-fluoro-2-methylphenyl)-4-cyclopropyl-2-fluorobenzamide. Its molecular weight is approximately 507.54 g/mol. The chemical structure of remibrutinib is: Remibrutinib is white to pale yellow powder, and it is practically insoluble in water. RHAPSIDO is supplied as film-coated tablets for oral administration, with each film-coated tablet containing 25 mg of remibrutinib. The tablet core inactive ingredients are copovidone, croscarmellose sodium, mannitol, microcrystalline cellulose, sodium lauryl sulfate, and sodium stearyl fumarate. The tablet coating inactive ingredients are polyethylene glycol 4000, polyvinyl alcohol, red iron oxide (E172), talc, titanium dioxide (E171), and yellow iron oxide (E172). chemical structure of remibrutinib

Mechanism of action

12.1 Mechanism of Action Remibrutinib is an oral, small molecule kinase inhibitor that inhibits Bruton’s tyrosine kinase (BTK). BTK is an intracellular protein expressed in mast cells, basophils, B cells, macrophages, and thrombocytes. BTK is involved in intracellular signaling via Fc epsilon receptor-1 (FcεR1), Fc gamma receptors (FcγR), and the B cell antigen receptor (BCR). Remibrutinib also inhibits the BTK-related kinases tec protein tyrosine kinase (TEC) and BMX non-receptor tyrosine kinase (BMX). Remibrutinib inhibits mast cell and basophil degranulation, including release of histamine and other proinflammatory mediators, mediated by pathogenic IgE or IgG directed against the FcεR1 or IgE.

How supplied

16 HOW SUPPLIED/STORAGE AND HANDLING RHAPSIDO tablets are supplied as described in Table 4: Table 4 RHAPSIDO Tablets and Package Configuration Strength Tablet Description Package Configuration NDC 25 mg light yellow, round, curved, unscored, film-coated tablet, debossed with “LV” on one side and Novartis logo on the other side. Tablet diameter is 7 mm. 40 mL HDPE bottle containing 60 tablets with 2 gm silica gel and a child-resistant closure 0078-1483-20 Storage Store at 20°C to 25°C (68°F to 77°F); excursions permitted between 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Dispense and store in the original container in order to protect from moisture.

Patient information

Advise patients to read the FDA-approved patient labeling (Patient Information). Administration Instructions: Inform patients to take RHAPSIDO with or without food. Advise patients not to split, crush, or chew the tablet and to swallow the tablet whole with water [see Dosage and Administration (2.1)] . Risk of Bleeding: Inform patients that bleeding can occur with the use of RHAPSIDO, and to report any signs and symptoms to their healthcare practitioner. Inform patients that RHAPSIDO should be interrupted for 3 to 7 days for any surgical procedures. Instruct patients to inform their healthcare practitioner if they use RHAPSIDO with antithrombotic agents due to the potential increased risk of bleeding [see Dosage and Administration (2.2) and Warnings and Precautions (5.1)] . Live Attenuated Vaccines: Instruct patients to inform the healthcare practitioner that they are taking RHAPSIDO prior to any potential vaccinations. Advise patients that the vaccines containing live virus (live and live-attenuated) should not be given during treatment with RHAPSIDO [see Warnings and Precautions (5.2)] . Pregnancy: Advise patients that there is a pregnancy registry that monitors pregnancy outcomes in women exposed to RHAPSIDO during pregnancy [see Use in Specific Populations (8.1)] . Distributed by: Novartis Pharmaceuticals Corporation One Health Plaza East Hanover, New Jersey 07936 © Novartis T2025-55

Label text from the FDA structured product label by Novartis Pharmaceuticals Corporation (revised Mar 23, 2026). Long sections are shortened; the complete label is on DailyMed.

Active ingredients

Remibrutinib in 1 product

Rhapsido NDC products (1)

NDC	Strength & form	Labeler	Type
0078-1483	Remibrutinib 25 mg/1 Tablet	Novartis Pharmaceuticals Corporation	NDA

Frequently asked questions

What is Rhapsido used for?

What are the side effects of Rhapsido?

Who makes Rhapsido?

Rhapsido is listed by 1 labeler in the FDA NDC directory, including Novartis Pharmaceuticals Corporation.