An Early Access Study of Ivosidenib in Patients With a Pretreated Locally Advanced or Metastatic Cholangiocarcinoma

Ivosidenib is approved in the United States and in EU for the treatment of advanced or metastatic CCA; this study is being conducted to conslidate the data related to the safety, efficacy, and impact on quality of life for patients. This is an open-label, single-arm study of ivosidenib, which means that all patients meeting eligibility criteria will receive two 250 mg ivosidenib tablets, totaling 500mg of drug, to be taken orally, once daily, for 28 consecutive days, also referred to as one cycle. Additional cycles can continue as long as clinical benefit is confirmed by an investigator, and consent is maintained. There will be a screening visit, study visit on day 1 of each cycle, withdrawal visit within 42 days of stopping treatment, and a follow-up visit every 6 months for up to 18 months after stopping treatment. This results in a minimum of 6 study visits for the completion of one 28-day cycle of ivosidenib. One additional study visit will be added on day one of each additional cycle of treatment. Study visits will include an electrocardiogram (ECG), physical exam, tumor assessment, according to local practive at a given site and blood and urine analyses. If at any point ivosidenib is made available as a medical prescription at the patient's site, patients will be withdrawn from the study treatment and patients will be followed to collect data on overall survival.