NCT06283238

Brief Summary

The goal of this observational study is to examine genetic changes that may contribute to immunotherapy resistance in gastroesophageal cancer. This information can potentially lead to the identification of new immunotherapeutic targets as well as improve the ability to identify those patients more likely to respond to immunotherapy. This study does not include any treatment or investigational drugs. Participants will be asked:

  • to enroll before beginning standard care of treatment for their cancer
  • for blood, archived tumor tissue, and fresh tumor tissue Researchers will compare participants who are not getting immunotherapy to identify potential differences in expression levels of a gene.

Trial Health

50
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Timeline
11mo left

Started Apr 2025

Geographic Reach
1 country

1 active site

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress55%
Apr 2025Mar 2027

First Submitted

Initial submission to the registry

February 22, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

February 28, 2024

Completed
1.1 years until next milestone

Study Start

First participant enrolled

April 16, 2025

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 25, 2026

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

March 25, 2027

Expected
Last Updated

January 29, 2026

Status Verified

February 1, 2025

Enrollment Period

11 months

First QC Date

February 22, 2024

Last Update Submit

January 28, 2026

Conditions

Outcome Measures

Primary Outcomes (4)

  • Number of participants with Complete Response (CR)

    up to 3 years

  • Number of participants with Partial Response (PR)

    up to 3 years

  • Number of participants with Stable Disease

    up to 3 years

  • Number of participants with Progressive Disease

    up to 3 years

Study Arms (3)

Cohort A

Participating subjects will be enrolled prior to initiating treatment with a regimen that includes an immune checkpoint inhibitor or chemotherapy alone in the case of the immunotherapy ineligible cohort. Archived formalin fixed paraffin embedded (FFPE) tumor tissue will be collected for all subjects if available. Patients will have an optional fresh research only biopsy if there is a lesion amenable to safe biopsy which will be frozen for further studies.

Drug: Immune checkpoint inhibitor (ICI) or chemotherapy alone

Cohort B (Melanoma Cohort)

Melanoma samples were previously collected and analyzed under Pro00059349, NCT02694965. Data will continue to be collected from participant's electronic medical records.

Drug: Immune checkpoint inhibitor (ICI) or chemotherapy alone

Cohort C

Retrospective portion that will allow for collection of data and archived tissue The Duke Enterprise Data Unified Content Explorer (DEDUCE) software tool will be utilized to identify patients with gastroesophageal adenocarcinoma or squamous cell or melanoma initiated on anti-PD-1 antibody immunotherapy at Duke University Medical Center and the Duke Cancer Institute between January 1, 2011 and August 31, 2023, and patients ineligible for immunotherapy that received chemotherapy during the same time period.

Drug: Immune checkpoint inhibitor (ICI) or chemotherapy alone

Interventions

Immune checkpoint inhibitor (i.e. pembrolizumab, nivolumab, or another checkpoint inhibitor) or chemotherapy alone

Cohort ACohort B (Melanoma Cohort)Cohort C

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

This study will be open to men and women of age 18 or above who meet the above patient selection criteria (section 4.0). Once a Cohort A patient is identified, a provider known to the patient will introduce the study, and if the patient is interested, a member of the study team will consent and enroll the patient. Cohort B subjects were already consented for this research under Pro00059349. Cohort C patients will be identified using DEDUCE as described in section 3.0. Patients will not be compensated for study participation.

You may qualify if:

  • Age \> 18 years
  • Ability to understand and the willingness to sign a written informed consent document
  • Diagnosis of gastric, esophageal, or gastroesophageal junction adenocarcinoma or squamous cell carcinoma.
  • Available archival tumor tissue or willingness to undergo research biopsy.

You may not qualify if:

  • Patients unable to comply with the requirements of the study protocol
  • Patients known to be pregnant or nursing
  • Serious pre-existing medical condition, that in the opinion of the investigator, makes the patient unsuitable for the study
  • Cohort B (Melanoma Cohort)
  • \. All subjects that consented and enrolled to Pro00059349 will be rolled into this protocol for specimen analysis. See Pro00059349 for eligibility criteria for those subjects.
  • Cohort C (Retrospective Cohort) Eligibility Criteria
  • GE subjects must have been treated with an immune checkpoint inhibitor for gastroesophageal adenocarcinoma or squamous cell carcinoma, or have been ineligible for immunotherapy due to low PD-L1 and received chemotherapy.
  • Melanoma subjects in cohort C must have stage II, III, or IV disease validated by histology or cytology
  • Primary cutaneous melanomas or melanomas of unknown primary site are eligible
  • Melanoma subjects must have been treated with immunotherapy (combination with other agents not allowed)
  • Patients with intra-cranial disease or disease involving the central nervous system are eligible.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Duke University

Durham, North Carolina, 27710, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Plasma, PBMCs, and archived/fresh tissue

MeSH Terms

Interventions

Immune Checkpoint Inhibitors

Intervention Hierarchy (Ancestors)

Molecular Mechanisms of Pharmacological ActionPharmacologic ActionsChemical Actions and UsesAntineoplastic Agents, ImmunologicalAntineoplastic AgentsTherapeutic Uses
0

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 22, 2024

First Posted

February 28, 2024

Study Start

April 16, 2025

Primary Completion

March 25, 2026

Study Completion (Estimated)

March 25, 2027

Last Updated

January 29, 2026

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations