Clinical Trials Directory

Trials / Recruiting

RecruitingNCT04221893

Radiation Therapy for the Treatment of Metastatic Gastrointestinal Cancers

Phase II Study of Hypofractionated Radiation Therapy to Augment Immune Response in Patients With Metastatic GastroIntestinal Malignancies Progressing on Immune Therapy (ARM-GI)

Status
Recruiting
Phase
N/A
Study type
Interventional
Enrollment
28 (estimated)
Sponsor
University of California, San Francisco · Academic / Other
Sex
All
Age
18 Years
Healthy volunteers
Not accepted

Summary

This phase II trial studies how well radiation therapy works for the treatment of gastrointestinal cancer that are spreading to other places in the body (metastatic). Radiation therapy uses high energy x-rays to kill cancer cells and shrink tumors. This trial is being done to determine if giving radiation therapy to patients who are being treated with immunotherapy and whose cancers are progressing (getting worse) can slow or stop the growth of their cancers. It may also help researchers determine if giving radiation therapy to one tumor can stimulate the immune system to attack other tumors in the body that are not targeted by the radiation therapy.

Detailed description

PRIMARY OBJECTIVE: I. To determine whether radiation therapy can convert overall response rates from progressive disease to stable or responsive disease as measured by Response Evaluation Criteria in Solid Tumors (RECIST) version (v.) 1.1. SECONDARY OBJECTIVES: I. To define overall response rate by immune-Modified Response Evaluation Criteria in Solid Tumors (iRECIST) criteria. II. To determine time to progression. III. To determine overall survival. IV. To determine local control in radiated lesion(s). V. To characterize the effect of distant radiation on unirradiated target lesions. VI. To describe the incidence of new metastatic lesions. VII. To determine treatment safety by Common Terminology Criteria for Adverse Events (CTCAE) v. 5.0. VIII. To describe time to new systemic therapy. EXPLORATORY OBJECTIVES: I. To define radiation-induced effects on circulating immune cells. II. To describe remodeling of the circulating T cell repertoire by deep sequencing of variable, diversity and joining (VDJ) regions of T cell receptors (TCRs). III. To describe changes in circulating tumor deoxyribonucleic acid (DNA) (ctDNA). OUTLINE: Patients undergo radiation therapy for a total of 5 treatments over 5-9 calendar days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 14 day, 6 months, and then up to 36 months.

Conditions

Interventions

TypeNameDescription
RADIATIONRadiation Therapy (RT)Undergo radiation therapy

Timeline

Start date
2020-08-07
Primary completion
2026-06-30
Completion
2028-04-30
First posted
2020-01-09
Last updated
2025-10-06

Locations

2 sites across 1 country: United States

Regulatory

Source: ClinicalTrials.gov record NCT04221893. Inclusion in this directory is not an endorsement.