Idelalisib

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Idelalisib
Black Box Warning
Adult Indications & Dosage
Pediatric Indications & Dosage
Contraindications
Warnings & Precautions
Adverse Reactions
Drug Interactions
Use in Specific Populations
Administration & Monitoring
Overdosage
Pharmacology
Clinical Studies
How Supplied
Images
Patient Counseling Information
Precautions with Alcohol
Brand Names
Look-Alike Names

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Alberto Plate [2]

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Black Box Warning

FATAL AND SERIOUS TOXICITIES: HEPATIC, SEVERE DIARRHEA, COLITIS, PNEUMONITIS, AND INTESTINAL PERFORATION
See full prescribing information for complete Boxed Warning.
Condition Name:
  • Fatal and/or serious hepatotoxicity occurred in 14% of Zydelig-treated patients. Monitor hepatic function prior to and during treatment. Interrupt and then reduce or discontinue Zydelig as recommended.
  • Fatal and/or serious and severe diarrhea or colitis occurred in 14% of Zydelig-treated patients. Monitor for the development of severe diarrhea or colitis. Interrupt and then reduce or discontinue Zydelig as recommended.
  • Fatal and serious pneumonitis can occur in Zydelig-treated patients. Monitor for pulmonary symptoms and bilateral interstitial infiltrates. Interrupt or discontinue Zydelig as recommended.
  • Fatal and serious intestinal perforation can occur in Zydelig-treated patients across clinical trials. *Discontinue Zydelig for intestinal perforation.

Overview

Idelalisib is an antineoplastic agent that is FDA approved for the treatment of relapsed chronic lymphocytic leukemia, relapsed follicular b-cell non-hodgkin lymphoma and relapsed small lymphocytic lymphoma. There is a Black Box Warning for this drug as shown here. Common adverse reactions include hyperglycemia, hypertriglyceridemia, abdominal pain, nausea, neutropenia, cough, fatigue, fever and shivering.

Adult Indications and Dosage

FDA-Labeled Indications and Dosage (Adult)

Recommended Dose

  • The recommended maximum starting dose of Zydelig is 150 mg administered orally twice daily.
  • Zydelig can be taken with or without food. Tablets should be swallowed whole.
  • Continue treatment until disease progression or unacceptable toxicity. The optimal and safe dosing regimen for patients who receive treatment longer than several months is unknown.

Dose Modification

  • See the table below for dose modification instructions for specific toxicities related to Zydelig.
  • For other severe or life-threatening toxicities related to Zydelig, withhold drug until toxicity is resolved. If resuming Zydelig after interruption for other severe or life-threatening toxicities, reduce the dose to 100 mg twice daily. Recurrence of other severe or life-threatening Zydelig-related toxicity upon rechallenge should result in permanent discontinuation of Zydelig.

Off-Label Use and Dosage (Adult)

Guideline-Supported Use

There is limited information regarding Off-Label Guideline-Supported Use of Idelalisib in adult patients.

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Idelalisib in adult patients.

Pediatric Indications and Dosage

FDA-Labeled Indications and Dosage (Pediatric)

There is limited information regarding Idelalisib FDA-Labeled Indications and Dosage (Pediatric) in the drug label.

Off-Label Use and Dosage (Pediatric)

Guideline-Supported Use

There is limited information regarding Off-Label Guideline-Supported Use of Idelalisib in pediatric patients.

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Idelalisib in pediatric patients.

Contraindications

Warnings

FATAL AND SERIOUS TOXICITIES: HEPATIC, SEVERE DIARRHEA, COLITIS, PNEUMONITIS, AND INTESTINAL PERFORATION
See full prescribing information for complete Boxed Warning.
Condition Name:
  • Fatal and/or serious hepatotoxicity occurred in 14% of Zydelig-treated patients. Monitor hepatic function prior to and during treatment. Interrupt and then reduce or discontinue Zydelig as recommended.
  • Fatal and/or serious and severe diarrhea or colitis occurred in 14% of Zydelig-treated patients. Monitor for the development of severe diarrhea or colitis. Interrupt and then reduce or discontinue Zydelig as recommended.
  • Fatal and serious pneumonitis can occur in Zydelig-treated patients. Monitor for pulmonary symptoms and bilateral interstitial infiltrates. Interrupt or discontinue Zydelig as recommended.
  • Fatal and serious intestinal perforation can occur in Zydelig-treated patients across clinical trials. *Discontinue Zydelig for intestinal perforation.

Hepatotoxicity

  • Fatal and/or serious hepatotoxicity occurred in 14% of patients treated with Zydelig. Elevations in ALT or AST greater than 5 times the upper limit of normal have occurred. These findings were generally observed within the first 12 weeks of treatment and were reversible with dose interruption. After resumption of treatment at a lower dose, 26% of patients had recurrence of ALT and AST elevations. Discontinue Zydelig for recurrent hepatotoxicity.
  • Avoid concurrent use of Zydelig with other drugs that may cause liver toxicity.
  • Monitor ALT and AST in all patients every 2 weeks for the first 3 months of treatment, every 4 weeks for the next 3 months, then every 1 to 3 months thereafter. Monitor weekly for liver toxicity if the ALT or AST rises above 3 times the upper limit of normal until resolved. Withhold Zydelig if the ALT or AST is greater than 5 times the upper limit of normal, and continue to monitor AST, ALT and total bilirubin weekly until the abnormality is resolved.

Severe Diarrhea or Colitis

  • Severe diarrhea or colitis (Grade 3 or higher) occurred in 14% of Zydelig-treated patients across clinical trials. Diarrhea can occur at any time. Avoid concurrent use of Zydelig and other drugs that cause diarrhea. Diarrhea due to Zydelig responds poorly to antimotility agents. Median time to resolution ranged between 1 week and 1 month across trials, following interruption of Zydelig therapy and in some instances, use of corticosteroids.

Pneumonitis

  • Fatal and serious pneumonitis occurred in patients treated with Zydelig. Patients taking Zydelig who present with pulmonary symptoms such as cough, dyspnea, hypoxia, interstitial infiltrates on a radiologic exam, or a decline by more than 5% in oxygen saturation should be evaluated for pneumonitis. If pneumonitis is suspected, interrupt Zydelig until the etiology of the pulmonary symptoms has been determined. Patients with pneumonitis thought to be caused by Zydelig have been treated with discontinuation of Zydelig and administration of corticosteroids.

Intestinal Perforation

Severe Cutaneous Reactions

Anaphylaxis

Neutropenia

  • Treatment-emergent Grade 3 or 4 neutropenia occurred in 31% of Zydelig-treated patients across clinical trials. Monitor blood counts at least every two weeks for the first 3 months of therapy, and at least weekly in patients while neutrophil counts are less than 1.0 Gi/L.

Embryo-fetal Toxicity

  • Based on findings in animals, Zydelig may cause fetal harm when administered to a pregnant woman. Idelalisib is teratogenic in rats, at systemic exposures 12 times those reported in patients at the recommended dose of 150 mg twice daily. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to a fetus.
  • Advise females of reproductive potential to avoid becoming pregnant while taking Zydelig. If contraceptive methods are being considered, use effective contraception during treatment, and for at least 1 month after the last dose of Zydelig.

Adverse Reactions

Clinical Trials Experience

There is limited information regarding Idelalisib Clinical Trials Experience in the drug label.

Postmarketing Experience

There is limited information regarding Idelalisib Postmarketing Experience in the drug label.

Drug Interactions

There is limited information regarding Idelalisib Drug Interactions in the drug label.

Use in Specific Populations

Pregnancy

Pregnancy Category (FDA): There is no FDA guidance on usage of Idelalisib in women who are pregnant.
Pregnancy Category (AUS): There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Idelalisib in women who are pregnant.

Labor and Delivery

There is no FDA guidance on use of Idelalisib during labor and delivery.

Nursing Mothers

There is no FDA guidance on the use of Idelalisib in women who are nursing.

Pediatric Use

There is no FDA guidance on the use of Idelalisib in pediatric settings.

Geriatic Use

There is no FDA guidance on the use of Idelalisib in geriatric settings.

Gender

There is no FDA guidance on the use of Idelalisib with respect to specific gender populations.

Race

There is no FDA guidance on the use of Idelalisib with respect to specific racial populations.

Renal Impairment

There is no FDA guidance on the use of Idelalisib in patients with renal impairment.

Hepatic Impairment

There is no FDA guidance on the use of Idelalisib in patients with hepatic impairment.

Females of Reproductive Potential and Males

There is no FDA guidance on the use of Idelalisib in women of reproductive potentials and males.

Immunocompromised Patients

There is no FDA guidance one the use of Idelalisib in patients who are immunocompromised.

Administration and Monitoring

Administration

There is limited information regarding Idelalisib Administration in the drug label.

Monitoring

There is limited information regarding Idelalisib Monitoring in the drug label.

IV Compatibility

There is limited information regarding the compatibility of Idelalisib and IV administrations.

Overdosage

There is limited information regarding Idelalisib overdosage. If you suspect drug poisoning or overdose, please contact the National Poison Help hotline (1-800-222-1222) immediately.

Pharmacology

There is limited information regarding Idelalisib Pharmacology in the drug label.

Mechanism of Action

There is limited information regarding Idelalisib Mechanism of Action in the drug label.

Structure

There is limited information regarding Idelalisib Structure in the drug label.

Pharmacodynamics

There is limited information regarding Idelalisib Pharmacodynamics in the drug label.

Pharmacokinetics

There is limited information regarding Idelalisib Pharmacokinetics in the drug label.

Nonclinical Toxicology

There is limited information regarding Idelalisib Nonclinical Toxicology in the drug label.

Clinical Studies

There is limited information regarding Idelalisib Clinical Studies in the drug label.

How Supplied

There is limited information regarding Idelalisib How Supplied in the drug label.

Storage

There is limited information regarding Idelalisib Storage in the drug label.

Images

Drug Images

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Package and Label Display Panel

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Patient Counseling Information

There is limited information regarding Idelalisib Patient Counseling Information in the drug label.

Precautions with Alcohol

Alcohol-Idelalisib interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.

Brand Names

There is limited information regarding Idelalisib Brand Names in the drug label.

Look-Alike Drug Names

There is limited information regarding Idelalisib Look-Alike Drug Names in the drug label.

Drug Shortage Status

Price

References

The contents of this FDA label are provided by the National Library of Medicine.