Title
A Phase II Trial of Durvalumab with Gemcitabine and Cisplatin as Neoadjuvant Therapy for High-Risk Resectable Intrahepatic Cholangiocarcinoma

Description
This phase II trial tests how well giving durvalumab with standard chemotherapy, gemcitabine and cisplatin, before surgery works in treating patients with high risk liver cancer (cholangiocarcinoma) that can be removed by surgery (resectable). Durvalumab is a monoclonal antibody that may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as gemcitabine and cisplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving durvalumab with gemcitabine and cisplatin before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed in patients with high risk resectable cholangiocarcinoma.

Objective
PRIMARY OBJECTIVE:

I. To examine the proportion of patients who complete neoadjuvant therapy followed by curative intent surgical resection.

SECONDARY OBJECTIVES:

I. To determine the major pathologic response (MPR) rate. (Efficacy) II. To determine the proportion of patients who attain an R0 resection following neoadjuvant therapy. (Efficacy) III. To determine the radiological response rate after 2 and 4 cycles of neoadjuvant therapy. (Efficacy) IV. To determine the overall survival of patients receiving neoadjuvant therapy prior to curative intent surgical resection. (Efficacy) V. To determine the relapse free survival (RFS) of patients receiving neoadjuvant therapy prior to curative intent surgical resection. (Efficacy) VI. To estimate the incidence of adverse events during neoadjuvant therapy which would preclude completion of the neoadjuvant chemotherapy regiment as defined by grade 4 or above adverse events by Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0. (Feasibility) VII. To determine the proportion of patients who are able to start adjuvant therapy within 10 weeks of surgical resection. (Feasibility) VIII. To determine the proportion of patients who can complete 4 cycles of adjuvant therapy. (Feasibility) IX. To determine the efficacy of therapy in different molecular subtypes (by deoxyribonucleic acid [DNA] profiling, ribonucleic acid [RNA] profiling, and circulating tumor [ct]DNA-based minimal residual disease [MRD]). (Toxicity Profiles and Biomarkers) X. To compare pre- and post-neoadjuvant therapy changes in the phenotypic profiles of circulating immune cells. (Toxicity Profiles and Biomarkers) XI. To correlate ctDNA-based MRD, tissue and blood based immune biomarkers, and body composition with the primary/secondary endpoints. (Toxicity Profiles and Biomarkers)

Treatment Patients receive durvalumab intravenously (IV) over 60 minutes on day 1 with gemcitabine IV over 30 minutes and cisplatin IV over 60 minutes on days 1 and 8 for 4 cycles and then undergo surgical resection on study. Following surgery, patients may continue the durvalumab, gemcitabine and cisplatin regimen for up to 4 additional cycles. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo computed tomography (CT) scans and/or magnetic resonance imaging (MRI) scans and blood sample collection throughout study, as well as tissue biopsies during screening and on study.

After completion of study treatment, patients are followed up every 3 months for 2 years, every 6 months for 5 years and then yearly.

Key Eligibility For full study eligibility, see this study's ClinicalTrials.gov record.

Applicable Disease Sites
Liver

Participating Institutions
UW Health Eastpark Medical Center; UW Health University Hospital