No information is available on the use of repotrectinib during breastfeeding. Because repotrectinib is 94.5% bound to plasma proteins, the amount in milk is likely to be low and oral bioavailability is less than 50%; however, the drug’s half-life is about 50 hours in adults. The manufacturer recommends that breastfeeding be discontinued during repotrectinib therapy and for 10 days after the final dose.
