Drug Interactions between avapritinib and sars-cov-2 mrna-1273 (6y-11y) vaccine
This report displays the potential drug interactions for the following 2 drugs:
- avapritinib
- sars-cov-2 mrna-1273 (6y-11y) vaccine
Interactions between your drugs
avapritinib SARS-CoV-2 mRNA-1273 (6y-11y) vaccine
Applies to: avapritinib and sars-cov-2 mrna-1273 (6y-11y) vaccine
MONITOR: The administration of inactivated, killed, or otherwise noninfectious vaccines to immunosuppressed patients is generally safe but may be associated with a diminished or suboptimal immunologic response due to antibody inhibition. Such patients may include those who have recently received or are receiving immunosuppressive agents, antilymphocyte globulins, alkylating agents, antimetabolites, radiation, some antirheumatic agents, high dosages of corticosteroids or adrenocorticotropic agents (e.g., greater than or equal to 2 mg/kg/day or 20 mg/day of prednisone or equivalent for 14 consecutive days or more), or long-term topical or inhaled corticosteroids.
MANAGEMENT: In general, the U.S. Department of Public Health Advisory Committee on Immunization Practices (ACIP) recommends that inactivated or killed vaccines be administered to non-HIV immunosuppressed patients according to the same guidelines as for healthy patients. However, higher dosages, more frequent boosters, and/or serological testing may be required in some cases. Local guidelines and prescribing information for individual vaccines should be consulted. For Haemophilus influenzae b vaccine, some experts recommend that it be administered at least 2 weeks before starting or 3 months after discontinuing chemotherapy when used in patients with Hodgkin's disease. For rabies vaccine, some authorities suggest that immunosuppressive agents should generally be avoided during postexposure therapy except when absolutely necessary for the treatment of other conditions. For SARS-CoV-2 (COVID-19) vaccines, vaccination should generally be completed at least 2 weeks before initiation or resumption of immunosuppressive therapies; however, decisions to delay or temporarily withhold immunosuppressive therapy to complete COVID-19 vaccination should consider the individual's risks relative to their underlying condition. Some authorities recommend administering the COVID-19 vaccine approximately 4 weeks prior to the next scheduled therapy for those on B-cell-depleting therapies on a continuing basis. Additional shots, boosters, and even revaccination may be appropriate depending on age, prior COVID-19 vaccine formulation(s) received, current or planned immunosuppressive therapy, and other factors in individuals with moderate to severe immune compromise due to medical conditions or immunosuppressive medications or treatments (e.g., solid organ transplant recipients on immunosuppressive therapy; patients on active treatment for solid tumor and hematologic malignancies). Vaccines may generally be administered to patients receiving corticosteroids as replacement therapy (e.g., for Addison's disease).
References
- "Product Information. Fluzone (influenza virus vaccine, inactivated)." Connaught Laboratories Inc
- "Product Information. Omnihib (haemophilus b conjugate vaccine (obsolete))." SmithKline Beecham
- "Product Information. Havrix (HepA) (hepatitis A adult vaccine)." SmithKline Beecham
- CDC. Centers for Disease Control and Prevention/ (1993) "Recommendations of the advisory committtee on immunization practices (ACIP): use of vaccines and immune globulins in persons with altered immunocompetence." MMWR Morb Mortal Wkly Rep, 42(RR-04), p. 1-18
- (2022) "Product Information. Imovax Rabies (rabies vaccine, human diploid cell)." sanofi pasteur
- (2003) "Product Information. Biothrax (anthrax vaccine adsorbed)." Emergent BioSolutions Inc.
- Cerner Multum, Inc. "Australian Product Information."
- (2022) "Product Information. Influenza Virus Vaccine, H5N1, Inactivated (influenza virus vaccine, H5N1, inactivated)." GlaxoSmithKline
- CDC Centers for Disease Control and Prevention (2019) General Best Practice Guidelines for Immunization: Altered Immunocompetence. https://www.cdc.gov/vaccines/hcp/acip-recs/general-recs/immunocompetence.pdf
- Department of Health. National Health Service (2019) Immunisation Against Infectious Disease - "The Green Book". Chapter 6: Contraindications and special considerations. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/655225/Greenbook_chapter_6.pdf
- CDC Centers for Disease Control and Prevention (2022) Interim Clinical Considerations for Use of COVID-19 Vaccines Currently Approved or Authorized in the United States. https://www.cdc.gov/vaccines/covid-19/clinical-considerations/covid-19-vaccines-us.html
- Centers for Disease Control and Prevention (2023) Use of COVID-19 vaccines in the U.S. https://www.cdc.gov/vaccines/covid-19/clinical-considerations/interim-considerations-us.html
- UK Health Security Agency (2023) COVID-19: the green book, chapter 14a https://www.gov.uk/government/publications/covid-19-the-green-book-chapter-14a
- Public Health Agency of Canada (2023) Immunization of immunocompromised persons: Canadian immunization guide https://www.canada.ca/en/public-health/services/publications/healthy-living/canadian-immunization-guide-part-3-vaccination-specific-populations/page-8-immunization-immunocompromised-p
- Public Health Agency of Canada (2023) COVID-19 vaccines: Canadian immunization guide. https://www.canada.ca/en/public-health/services/publications/healthy-living/canadian-immunization-guide-part-4-active-vaccines/page-26-covid-19-vaccine.html
- Australian Government. Department of Health and Aged Care (2023) Australian immunisation handbook: COVID-19. https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/covid-19
Drug and food interactions
avapritinib food
Applies to: avapritinib
GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of avapritinib. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Inhibition of hepatic CYP450 3A4 may also contribute. The interaction has not been studied with grapefruit juice, but has been reported for other CYP450 3A4 inhibitors. Based on pharmacokinetic modeling, administration of avapritinib (300 mg once daily) in combination with the potent CYP450 3A4 inhibitor itraconazole (200 mg once daily) is predicted to increase avapritinib systemic exposure (AUC) by 600% at steady state, while administration with the moderate CYP450 3A4 inhibitor fluconazole (200 mg once daily) is predicted to increase avapritinib systemic exposure (AUC) by 210% at steady state. In general, the effect of grapefruit juice is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. Increased exposure to avapritinib may increase the risk and/or severity of serious adverse effects such as intracranial hemorrhage, cognitive impairment, mood disorders, hallucinations, edema, and decreases in hemoglobin, leukocytes, neutrophils, and platelets.
ADJUST DOSING INTERVAL: Food may increase the oral absorption of avapritinib. When avapritinib was administered with a high-calorie, high-fat meal (approximately 909 calories; 58 g carbohydrate, 56 g fat, 43 g protein), avapritinib Cmax and AUC increased by 59% and 29%, respectively, compared to administration in the fasted state.
MANAGEMENT: Avapritinib should be administered on an empty stomach at least 1 hour before or 2 hours after a meal. Patients should avoid consumption of grapefruit and grapefruit juice during treatment with avapritinib.
References
- (2020) "Product Information. Ayvakit (avapritinib)." Blueprint Medicines Corporation
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
Further information
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