Drug interactions
Atidarsagene autotemcel + Efavirenz
Severity: Major
Atidarsagene autotemcel and Efavirenz: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Antiretrovirals may impair lentiviral transduction of the patient's collected hematopoietic cells and interfere with manufacture of the gene therapy, which could reduce its effectiveness.
What this interaction means in plain words
Atidarsagene autotemcel and Efavirenz can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Atidarsagene autotemcel belongs to Miscellaneous; Efavirenz belongs to Anti Virals.
Why it happens
Reverse transcriptase inhibitors can interfere with lentiviral vector transduction during cell manufacturing.
What to do
Stop efavirenz at least 1 month before cell mobilization, allowing for its long elimination time, and keep it off through apheresis. Arrange alternative HIV management with a specialist.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Efavirenz
- Cobimetinib + Efavirenz Contraindicated
- Dienogest / estradiol valerate + Efavirenz Contraindicated
- Dihydroergotamine intranasal + Efavirenz Contraindicated
- Dihydroergotamine + Efavirenz Contraindicated
- Doravirine + Efavirenz Contraindicated
- Efavirenz + Elbasvir / grazoprevir Contraindicated
Other interactions of Atidarsagene autotemcel
Frequently asked questions
Can I take Atidarsagene autotemcel with Efavirenz?
MediHelp rates the interaction as major. Atidarsagene autotemcel and Efavirenz can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Antiretrovirals may impair lentiviral transduction of the patient's collected hematopoietic cells and interfere with manufacture of the gene therapy, which could reduce its effectiveness.
How serious is the interaction between Atidarsagene autotemcel and Efavirenz?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Stop efavirenz at least 1 month before cell mobilization, allowing for its long elimination time, and keep it off through apheresis. Arrange alternative HIV management with a specialist.
What other medicines interact with Efavirenz?
MediHelp also lists interactions of Efavirenz with, for example, Cobimetinib, Dienogest / estradiol valerate, Dihydroergotamine intranasal. The full list is on the Efavirenz page.
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