Why RETRIAL?

Helping make CFTR modulator therapy safer

RETRIAL exists because some PWCF had real, life-altering side effects on TRIKAFTA — and we need better information about what happens when they try ALYFTREK next.

Some people had mental health side effects on TRIKAFTA

Reported new or worsening mental health symptoms (such as mood changes, anxiety, depression, sleep issues, or problems with thinking or memory).

Some people had liver problems on TRIKAFTA

Others experienced liver-related side effects on TRIKAFTA, ranging from elevated liver labs to drug-induced liver injury. These, too, sometimes required adjusting or stopping the medication.

ALYFTREK is new — and we want to learn how it’s tolerated

ALYFTREK is a newer CFTR modulator. People who didn’t tolerate TRIKAFTA may try ALYFTREK next. RETRIAL closely monitors mental health, cognition, and liver health as people start it for the first time, so we can learn whether and how those side effects show up again.