Clinical drug
ibrutinib 420 MG Oral Tablet
420 MG · Oral Tablet · oral
A form of ibrutinib →
ibrutinib 420 MG Oral Tablet — Bruton's tyrosine kinase (BTK) inhibitors. INDICATIONS AND USAGE IMBRUVICA is a kinase inhibitor indicated for the treatment of: Adult patients with chronic lymphocytic leukemia (CLL)/Small lym

Active ingredient
Classification
Bruton's tyrosine kinase (BTK) inhibitorsKinase Inhibitor
Drug interactions
Ibrutinib has significant interactions with CYP3A inhibitors and inducers, affecting its plasma concentrations and potential toxicity.
- majorCYP3A inhibitors — Increased ibrutinib plasma concentrations may increase the risk of drug-related toxicity.
- majorCYP3A inducers — Decreased ibrutinib concentrations.
- majorgrapefruit — Increased risk of drug-related toxicity due to inhibition of CYP3A.
- majorSeville oranges — Increased risk of drug-related toxicity due to inhibition of CYP3A.
Real-world adverse events (FAERS)
Death8,466Off Label Use5,942Fatigue4,708Diarrhoea4,152Atrial Fibrillation3,866Pneumonia3,237Contusion2,792Incorrect Dose Administered2,778
Indications
INDICATIONS AND USAGE IMBRUVICA is a kinase inhibitor indicated for the treatment of: Adult patients with chronic lymphocytic leukemia (CLL)/Small lymphocytic lymphoma (SLL) ( 1.1 ). Adult patients with chronic lymphocytic leukemia (CLL)/Small lymphocytic lymphoma (SLL) with 17p deletion ( 1.2 ). Adult patients with Waldenström’s macroglobulinemia (WM) ( 1.3 ). Adult and pediatric patients age 1 year and older with chronic graft versus host disease (cGVHD) after failure of one or more lines of systemic therapy ( 1.4 ). 1.1 Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma IMBRUVICA is indicated for the treatment of adult patients with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). 1. 2 Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma with 17p deletion IMBRUVICA is indicated for the treatment of adult patients with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) with 17p deletion. 1. 3 Waldenström’s Macroglobulinemia IMBRUVICA is indicated for the treatment of adult patients with Waldenström’s macroglobulinemia (WM). 1. 4 Chronic Graft versus Host Disease IMBRUVICA is indicated for the treatment of adult and pediatric patients age 1 year and older with chronic graft-versus-host disease (cGVHD) after failure of one or more lines of systemic therapy.
Dosage
DOSAGE AND ADMINISTRATION CLL/SLL and WM : 420 mg taken orally once daily ( 2.1 ). cGVHD : ◦ Patients 12 years and older: 420 mg taken orally once daily ( 2.1 ). ◦ Patients 1 to less than 12 years of age: 240 mg/m 2 taken orally once daily (up to a dose of 420 mg) ( 2.1 ). Tablets or capsules should be taken orally with a glass of water. Do not open, break, or chew the capsules. Do not cut, crush, or chew the tablets. See full prescribing information for oral suspension administration instructions ( 2.1 ). 2.1 Recommended Dosage Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma and Waldenström’s Macroglobulinemia The recommended dosage of IMBRUVICA for CLL/SLL and WM is 420 mg orally once daily until disease progression or unacceptable toxicity. For CLL/SLL, IMBRUVICA can be administered as a single agent, in combination with rituximab or obinutuzumab, or in combination with bendamustine and rituximab (BR). For WM, IMBRUVICA can be administered as a single agent or in combination with rituximab. When administering IMBRUVICA in combination with rituximab or obinutuzumab, consider administering IMBRUVICA prior to rituximab or obinutuzumab when given on the same day. Chronic Graft versus Host Disease The recommended dosage of IMBRUVICA for patients age 12 years and older with cGVHD is 420 mg orally once daily, and for patients 1 to less than 12 years of age with cGVHD is 240 mg/m 2 orally once daily (up to a dose of 420 mg), until cGVHD progression, recurrence of an underlying malignancy, or unacceptable toxicity. When a patient no longer requires therapy for the treatment of cGVHD, IMBRUVICA should be discontinued considering the medical assessment of the individual patient. Table 1: Recommended dosage based on body surface area (BSA) for patients 1 to less than 12 years of age using either IMBRUVICA capsules/tablets or oral suspension Recommended dose to achieve 240 mg/m 2 BSA* (m 2 ) Range Dose (mg) of IMBRUVICA Capsules/Tablets to Administer Volume (mL) of IMBRUVICA Oral Suspension (70 mg/mL) to Administer > 0.3 to 0.4 - 1.2 mL > 0.4 to 0.5 - 1.5 mL > 0.5 to 0.6 - 1.9 mL > 0.6 to 0.7 - 2.2 mL > 0.7 to 0.8 210 mg 2.6 mL > 0.8 to 0.9 210 mg 2.9 mL > 0.9 to 1 210 mg 3.3 mL > 1 to 1.1 280 mg 3.6 mL > 1.1 to 1.2 280 mg 4 mL > 1.2 to 1.3 280 mg 4.3 mL > 1.3 to 1.4 350 mg 4.6 mL > 1.4 to 1.5 350 mg 5 mL > 1.5 to 1.6 350 mg 5.3 mL > 1.6 420 mg 6 mL *BSA = body surface area. Administration Administer IMBRUVICA at approximately the same time each day. Swallow tablets or capsules whole with a glass of water. Do not open, break, or chew the capsules. Do not cut, crush, or chew the tablets. Follow Instructions for Use for further administration details of IMBRUVICA oral suspension. If a dose of IMBRUVICA is not taken at the scheduled time, it can be taken as soon as possible on the same day with a return to the normal schedule the following day. Do not take extra doses of IMBRUVICA to make up for the missed dose. 2.2 Dosage Modifications for Adverse Reactions For adverse reactions listed in Table 2 , interrupt IMBRUVICA therapy. Once the adverse reaction has improved to Grade 1 or baseline (recovery), follow the recommended dosage modifications (see Table 2 ). Table 2: Recommended Dosage Modifications for Adverse Reactions Adverse Reaction a,b Occurrence Dose Modification for CLL/SLL, WM, and Patients 12 Years or older with cGVHD After Recovery Starting Dose = 420 mg Dose Modification for Patients 1 Year to less than 12 Years with cGVHD After Recovery Starting Dose = 240 mg/m 2 Grade 2 cardiac failure First Restart at 280 mg daily c Restart at 160 mg/m 2 daily c Second Restart at 140 mg daily c Restart at 80 mg/m 2 daily c Third Discontinue IMBRUVICA Discontinue IMBRUVICA Grade 3 cardiac arrhythmias First Restart at 280 mg daily c Restart at 160 mg/m 2 daily c Second Discontinue IMBRUVICA Discontinue IMBRUVICA Grade 3 or 4 cardiac failure Grade 4 cardiac arrhythmias First Discontinue IMBRUVICA Discontinue IMBRUVICA Other Grade 3 or 4 non-hematological toxicities d Grade 3 or 4 neutropenia with infection or fever Grade 4 hematological toxicities First Restart at 280 mg daily Restart at 160 mg/m 2 daily c Second Restart at 140 mg daily Restart at 80 mg/m 2 daily c Third Discontinue IMBRUVICA Discontinue IMBRUVICA a [see Warnings and Precautions ( 5 ) ] . b Grading based on National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE) criteria, or International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria for hematologic toxicities in CLL/SLL. c Evaluate the benefit-risk before resuming treatment. d For Grade 4 non-hematologic toxicities, evaluate the benefit-risk before resuming treatment. Table 3: Recommended dosage modifications based on BSA using either IMBRUVICA capsules/tablets or oral suspension Recommended dose to achieve 160 mg/m 2 Recommended dose to achieve 80 mg/m 2 BSA* (m 2 ) Range Dose (mg) of IMBRUVICA Capsules/Tablets to Administer Volume (mL) of IMBRUVICA Oral Suspension (70 mg/mL) to Administer Dose (mg) of IMBRUVICA Capsules/Tablets to Administer Volume (mL) of IMBRUVICA Oral Suspension (70 mg/mL) to Administer > 0.3 to 0.4 - 0.8 mL - 0.4 mL > 0.4 to 0.5 - 1 mL - 0.5 mL > 0.5 to 0.6 - 1.3 mL - 0.6 mL > 0.6 to 0.7 - 1.5 mL - 0.7 mL > 0.7 to 0.8 140 mg 1.7 mL 70 mg 0.9 mL > 0.8 to 0.9 140 mg 1.9 mL 70 mg 1 mL > 0.9 to 1 140 mg 2.2 mL 70 mg 1.1 mL > 1 to 1.1 140 mg 2.4 mL 70 mg 1.2 mL > 1.1 to 1.2 210 mg 2.6 mL - 1.3 mL > 1.2 to 1.3 210 mg 2.9 mL - 1.4 mL > 1.3 to 1.4 210 mg 3.1 mL - 1.5 mL > 1.4 to 1.5 210 mg 3.3 mL 140 mg 1.7 mL > 1.5 to 1.6 280 mg 3.5 mL 140 mg 1.8 mL > 1.6 280 mg 4 mL 140 mg 2 mL *BSA = body surface area. 2.3 Dosage Modifications for Use with CYP3A Inhibitors Recommended dosage modifications are described below [see Drug Interactions ( 7.1 )] : Table 4: Recommended Dosage Modifications for Use with CYP3A Inhibitors Patient Population Coadministered Drug Recommended IMBRUVICA Dosage B-cell Malignancies Moderate CYP3A inhibitor 280 mg once daily Modify dose as recommended [see Dosage and Administration ( 2.2 )]. Voriconazole 200 mg twice daily Posaconazole suspension 100 mg once daily, 100 mg twice daily, or 200 mg twice daily 140 mg once daily Modify dose as recommended [see Dosage and Administration ( 2.2 )]. Posaconazole suspension 200 mg three times daily or 400 mg twice daily Posaconazole intravenously 300 mg once daily Posaconazole delayed-release tablets 300 mg once daily 70 mg once daily Interrupt dose as recommended [see Dosage and Administration ( 2.2 )]. Other strong CYP3A inhibitors Avoid concomitant use. If these inhibitors will be used short-term (such as anti-infectives for seven days or less), interrupt IMBRUVICA. Patients 12 years and older with cGVHD Moderate CYP3A inhibitor 420 mg once daily Modify dose as recommended [see Dosage and Administration ( 2.2 )]. Voriconazole 200 mg twice daily Posaconazole suspension 100 mg once daily, 100 mg twice daily, or 200 mg twice daily 280 mg once daily Modify dose as recommended [see Dosage and Administration ( 2.2 )]. Posaconazole suspension 200 mg three times daily or 400 mg twice daily Posaconazole intravenously 300 mg once daily Posaconazole delayed-release tablets 300 mg once daily 140 mg once daily Interrupt dose as recommended [see Dosage and Administration ( 2.2 )]. Other strong CYP3A inhibitors Avoid concomitant use. If these inhibitors will be used short-term (such as anti-infectives for seven days or less), interrupt IMBRUVICA. Patients 1 year to less than 12 years of age with cGVHD Moderate CYP3A inhibitors 240 mg/m 2 once daily Modify dose as recommended [see Dosage and Administration ( 2.2 )]. Voriconazole for suspension 9 mg/kg (maximum dose: 350 mg) twice daily 160 mg/m 2 once daily Posaconazole at any dosage 80 mg/m 2 once daily Other strong CYP3A inhibitors Avoid concomitant use. If these inhibitors will be used short-term (such as anti-infectives for seven days or less), interrupt IMBRUVICA. After discontinuati
Warnings
WARNINGS AND PRECAUTIONS Hemorrhage : Monitor for bleeding and manage ( 5.1 ). Infections : Monitor patients for fever and infections, evaluate promptly, and treat ( 5.2 ). Cardiac Arrhythmias , Cardiac Failure , and Sudden Death : Monitor for symptoms of arrhythmias and cardiac failure and manage ( 5.3 ). Hypertension : Monitor blood pressure and treat ( 5.4 ). Cytopenias : Check complete blood counts monthly ( 5.5 ). Second Primary Malignancies : Other malignancies have occurred in patients, including skin cancers, and other carcinomas ( 5.6 ). Hepatotoxicity, Including Drug- Induced Liver Injury : Monitor hepatic function throughout treatment ( 5.7 ). Tumor Lysis Syndrome (TLS) : Assess baseline risk and take precautions. Monitor and treat for TLS ( 5.8 ). Embryo-Fetal Toxicity : Can cause fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception ( 5.9 , 8.1 , 8.3 ). 5.1 Hemorrhage Fatal bleeding events have occurred in patients who received IMBRUVICA. Major hemorrhage (≥ Grade 3, serious, or any central nervous system events; e.g., intracranial hemorrhage [including subdural hematoma], gastrointestinal bleeding, hematuria, and post procedural hemorrhage) occurred in 4.2% of patients, with fatalities occurring in 0.4% of 2,838 patients who received IMBRUVICA in 27 clinical trials. Bleeding events of any grade including bruising and petechiae occurred in 39%, and excluding bruising and petechiae occurred in 23% of patients who received IMBRUVICA, respectively [see Adverse Reactions ( 6.1 )] . The mechanism for the bleeding events is not well understood. Use of either anticoagulant or antiplatelet agents concomitantly with IMBRUVICA increases the risk of major hemorrhage. Across clinical trials, 3.1% of 2,838 patients who received IMBRUVICA without antiplatelet or anticoagulant therapy experienced major hemorrhage. The addition of antiplatelet therapy with or without anticoagulant therapy increased this percentage to 4.4%, and the addition of anticoagulant therapy with or without antiplatelet therapy increased this percentage to 6.1%. Consider the risks and benefits of anticoagulant or antiplatelet therapy when co-administered with IMBRUVICA. Monitor for signs and symptoms of bleeding. Consider the benefit-risk of withholding IMBRUVICA for at least 3 to 7 days pre- and post-surgery depending upon the type of surgery and the risk of bleeding [see Clinical Studies ( 14 )]. 5.2 Infections Fatal and non-fatal infections (including bacterial, viral, or fungal) have occurred with IMBRUVICA therapy. Grade 3 or greater infections occurred in 21% of 1,476 patients with B-cell malignancies who received IMBRUVICA in clinical trials [see Adverse Reactions ( 6.1 , 6.2 )] . Cases of progressive multifocal leukoencephalopathy (PML) and Pneumocystis jirovecii pneumonia (PJP) have occurred in patients treated with IMBRUVICA. Consider prophylaxis according to standard of care in patients who are at increased risk for opportunistic infections. Monitor and evaluate patients for fever and infections and treat appropriately. 5.3 Cardiac Arrhythmias, Cardiac Failure, and Sudden Death Fatal and serious cardiac arrhythmias and cardiac failure have occurred with IMBRUVICA. Deaths due to cardiac causes or sudden deaths occurred in 1% of 4,896 patients who received IMBRUVICA in clinical trials, including in patients who received IMBRUVICA in unapproved monotherapy or combination regimens. These adverse reactions occurred in patients with and without preexisting hypertension or cardiac comorbidities. Patients with cardiac comorbidities may be at greater risk of these events. Grade 3 or greater ventricular tachyarrhythmias were reported in 0.2%, Grade 3 or greater atrial fibrillation and atrial flutter were reported in 3.7%, and Grade 3 or greater cardiac failure was reported in 1.3% of 4,896 patients who received IMBRUVICA in clinical trials, including in patients who received IMBRUVICA in unapproved monotherapy or combination regimens. These events have occurred particularly in patients with cardiac risk factors including hypertension and diabetes mellitus, a previous history of cardiac arrhythmias, and in patients with acute infections [see Adverse Reactions ( 6.1 )] . Evaluate cardiac history and function at baseline, and monitor patients for cardiac arrhythmias and cardiac function. Obtain further evaluation (e.g., ECG, echocardiogram) as indicated for patients who develop symptoms of arrhythmia (e.g., palpitations, lightheadedness, syncope, chest pain), new onset dyspnea, or other cardiovascular concerns. Manage cardiac arrhythmias and cardiac failure appropriately, follow dose modification guidelines [see Dosage and Administration ( 2.2 )] , and consider the risks and benefits of continued IMBRUVICA treatment. 5.4 Hypertension Hypertension occurred in 19% of 1,476 patients with B-cell malignancies who received IMBRUVICA in clinical trials. Grade 3 or greater hypertension occurred in 8% of patients [see Adverse Reactions ( 6.1 )] . Based on data from a subset of these patients (N=1,124), the median time to onset was 5.9 months (range, 0 to 24 months). In a long-term safety analysis over 5 years of 1,284 patients with B-cell malignancies treated for a median of 36 months (range, 0 to 98 months), the cumulative rate of hypertension increased over time. The prevalence for Grade 3 or greater hypertension was 4% (year 0-1), 7% (year 1-2), 9% (year 2-3), 9% (year 3-4), and 9% (year 4-5); the overall incidence for the 5-year period was 11%. Monitor blood pressure in patients treated with IMBRUVICA, initiate or adjust anti-hypertensive medication throughout treatment with IMBRUVICA as appropriate, and follow dosage modification guidelines for Grade 3 or higher hypertension [see Dosage and Administration ( 2.2 )] . 5.5 Cytopenias In 645 patients with B-cell malignancies who received IMBRUVICA as a single agent, grade 3 or 4 neutropenia occurred in 23% of patients, grade 3 or 4 thrombocytopenia in 8% and grade 3 or 4 anemia in 2.8%, based on laboratory measurements [see Adverse Reactions ( 6.1 )] . Monitor complete blood counts monthly. 5.6 Second Primary Malignancies Other malignancies (10%), including non-skin carcinomas (3.9%), occurred among the 1,476 patients with B-cell malignancies who received IMBRUVICA in clinical trials [see Adverse Reactions ( 6.1 )] . The most frequent second primary malignancy was non-melanoma skin cancer (6%). 5.7 Hepatotoxicity, Including Drug-Induced Liver Injury Hepatotoxicity, including severe, life-threatening, and potentially fatal cases of drug-induced liver injury (DILI), has occurred in patients treated with Bruton tyrosine kinase inhibitors, including IMBRUVICA. Evaluate bilirubin and transaminases at baseline and throughout treatment with IMBRUVICA. For patients who develop abnormal liver tests after IMBRUVICA, monitor more frequently for liver test abnormalities and clinical signs and symptoms of hepatic toxicity. If DILI is suspected, withhold IMBRUVICA. Upon confirmation of DILI, discontinue IMBRUVICA. 5. 8 Tumor Lysis Syndrome Tumor lysis syndrome has been infrequently reported with IMBRUVICA [see Adverse Reactions ( 6.2 )] . Assess the baseline risk (e.g., high tumor burden) and take appropriate precautions. Monitor patients closely and treat as appropriate. 5. 9 Embryo-Fetal Toxicity Based on findings in animals, IMBRUVICA can cause fetal harm when administered to a pregnant woman. Administration of ibrutinib to pregnant rats and rabbits during the period of organogenesis caused embryo-fetal toxicity including malformations at exposures that were 3-20 times higher than those reported in patients with hematologic malignancies. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with IMBRUVICA and for 1 month after the last dose. [see Use in Specific Populations ( 8.1 )] .
Contraindications
CONTRAINDICATIONS None None ( 4 )
Mechanism of action
Mechanism of Action Ibrutinib is a small-molecule inhibitor of Bruton’s tyrosine kinase (BTK). Ibrutinib forms a covalent bond with a cysteine residue in the BTK active site, leading to inhibition of BTK enzymatic activity. BTK is a signaling molecule of the B-cell antigen receptor (BCR) and cytokine receptor pathways. BTK’s role in signaling through the B-cell surface receptors results in activation of pathways necessary for B-cell trafficking, chemotaxis, and adhesion. Nonclinical studies show that ibrutinib inhibits malignant B-cell proliferation and survival in vivo as well as cell migration and substrate adhesion in vitro .
Source: RxNorm + openFDA + RxClass + FAERS · 2026
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