What happens if you miss a dose of Amivantamab-vmjw Injection?
Last updated September 7, 2026.
If you miss a dose of amivantamab-vmjw, contact your cancer care team as soon as you can so they can reschedule the infusion and adjust the rest of your treatment plan. This medicine is given as an intravenous infusion by a healthcare provider, so a missed dose is really a missed appointment rather than a pill you forgot. Your team decides whether to give the dose late, skip it, or move your whole schedule forward, and that choice depends on how far into treatment you are and why the dose was missed. Timing is tightest during the first weeks, when the starting dose is split across two days and infusions are weekly, before they move to every two weeks. Keep your infusion dates in your phone calendar, arrange rides ahead of time, and call the clinic early if illness, side effects, or travel could get in the way.
What to do
- Call the same day: Contact the infusion center or oncology office as soon as you know you will miss or have missed an appointment.
- Ask about the rate: Check whether your next infusion needs a slower starting rate or extra premedication after a gap in treatment.
- Report the reason: Say clearly if fever, rash, swelling, breathing trouble, or nail and skin problems kept you home, since those need review.
- Protect the schedule: Put every infusion date in your calendar with a reminder two days ahead, and book transportation in advance.
- Plan around travel: Tell your team about trips or family events weeks ahead so they can move an appointment instead of losing a dose.
- Get clinician input: Repeated missed infusions, ongoing side effects, or confusion about your schedule are reasons to talk with your oncologist directly.