Fertility, Pregnancy and Contraception — on Ibrutinib

Yes, but you need to wait one month after your last dose before attempting a pregnancy. This is the requirement in the prescribing information, not a rough guide. Your oncologist can confirm the specific clearance date and will want to be involved in the planning given your cancer history. Do not assume the wait is over — confirm the date with your team before you try.

We do not yet know for certain. Animal studies have shown effects on both male and female fertility, but whether those effects are permanent in people, and how often they occur, is not well established. Many people do conceive after treatment. If future pregnancy matters to you, the conversation about fertility preservation — egg freezing, embryo freezing, or sperm banking — needs to happen before you start ibrutinib. Those options are time-sensitive.

The prescribing information requires effective contraception but does not specify a single method. Your oncologist or gynaecologist will guide you based on your cancer type, your other medications, and your personal medical history. Some hormonal methods interact with other drugs used in cancer treatment. Ask your team rather than assuming your current method is appropriate — this deserves a dedicated conversation before you start.

Tell your oncologist the same day. Do not stop ibrutinib on your own — sudden discontinuation carries its own risks for your cancer, and the decision about what happens next must be made together with your team. Your oncologist will involve a specialist in cancer and pregnancy. The path forward depends on how far along the pregnancy is, what your cancer is doing, and your priorities. Acting quickly keeps the most options open.

Not during his treatment, and not until one month after his last dose. The prescribing information requires men to use contraception during treatment and for one month afterwards if their partner can become pregnant. If he has stopped ibrutinib and the one-month window has passed, a pregnancy attempt may be possible — but his oncologist needs to be part of that decision, because stopping or timing around a cancer treatment is not something to manage without medical input.

It is worth raising before you start, even if you are not certain you want children. Egg or embryo freezing must happen before treatment begins — the window closes once ibrutinib starts. Many oncologists will raise it automatically; if yours has not and pregnancy matters to you, bring it up yourself at the first appointment. The process takes a few weeks and may fit in before ibrutinib begins without significantly delaying your cancer treatment, but that depends on your specific situation.