About this trial
The purpose of this study is to measure the efficacy and safety of T-DXd with rilvegostomig or T-DXd monotherapy compared with gemcitabine plus cisplatin and durvalumab in patients with advanced treatment naïve HER2-expressing BTC.
Eligibility criteria
Qualifiers
Male and female patients must be at least 18 years of age at the time of signing the informed consent. Other age restrictions may apply as per local regulations.
Unresectable, previously untreated, locally advanced or metastatic biliary tract adenocarcinoma. Prior treatment in the perioperative and/or adjuvant setting is permissible provided there is > 3 months (90 days) between the end of adjuvant treatment and the diagnosis of locally advanced or metastatic disease.
Histologically confirmed HER2-expressing (IHC 3+ or IHC 2+) BTC.
Patients must provide an FFPE tumor sample that is no older than 3 years for tissue-based IHC staining to centrally determine HER2 expression, PD-L1 status, and other correlatives.
Disqualifiers
Prior exposure to other HER2 targeting therapies, ADCs, immune checkpoint inhibitors and therapeutic anticancer vaccines.
Histologically confirmed ampullary carcinoma.
Any other medical conditions such as clinically significant cardiac or psychological conditions, that may, in the opinion of the Investigator, interfere with the patient's participation in the clinical study or evaluation of the clinical study results.
Spinal cord compression or clinically active central nervous system metastases, defined as untreated and symptomatic, or requiring therapy with corticosteroids or anticonvulsants to control associated symptoms.
Trial design
Treatments tested in this trial
- Gemcitabine
- Cisplatin
- Durvalumab
- Trastuzumab deruxtecan
- Rilvegostomig