CI

At a glance

ClinicalIndex Comparison Record
Phase 1Completed· 16 enrolled
Drug / intervention
Pembrolizumab +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT02642809
NCT02642809Phase 1Completed

A Pilot Study Combining Pembrolizumab With Locally Delivered Radiation Therapy for the Treatment of Metastatic Esophageal Cancers

Washington University School of Medicine·interventional·Posted Dec 30, 2015·Updated Mar 18, 2026

In Brief

A Phase 1 clinical trial evaluating Pembrolizumab and Brachytherapy for Esophageal Cancer and Cancer of the Esophagus. Completed, enrolled 16 participants across 1 site.

Detailed Summary

The investigators propose to treat patients with metastatic esophageal cancers and dysphagia with two fractions of brachytherapy followed by pembrolizumab. The brachytherapy is hypofractionated and will provide a radiation dose of sufficient intensity to induce the release of tumor-derived antigens and trigger an antitumor immune response. The simplicity of the design should maximize the chance to examine the hypothesis that radiotherapy can induce an immune response, which can then be augmented by pembrolizumab treatment. Success in this study would provide the impetus to conduct further trials aimed at developing this unique strategy as a more broadly applicable therapeutic option in the treatment of patients suffering from these deadly cancers, and will provide important mechanistic insights into the relationship between radiation treatment and immune therapy augmentation.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

Phase 1CompletedFinished
20162017201820192020202120222023202420252026
First PostedDec 30, 2015
Enrollment StartJun 8, 2016
Primary CompletionSep 24, 2020
Study CompletionAug 3, 2021
TodayJul 2, 2026
Enrollment to primary: 4.3 yearsPosted 10.5 years ago

Interventions

Pembrolizumabdrug

Provided by Merck.

Brachytherapyradiation

It will be delivered using a high-dose-rate Ir-192 afterloader via a dedicated esophageal applicator.