Molecular Characteristics of Gastroesophageal Adenocarcinoma (MOCHA): A Prospective Feasibility Study

  • STATUS
    Recruiting
  • participants needed
    120
  • sponsor
    University Health Network, Toronto
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Updated on 19 February 2024
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Summary

Researchers are looking to further our knowledge on disease biology and treatment selection for gastroesophageal adenocarcinoma. The purpose of this study is to see how useful it is to look for changes and characteristics in your genes (molecules that contain instructions for the development and functioning of the cells) and the genes within the tumour. These characteristics may be useful in choosing treatments for patients for the future.

Description

There will be two study arms:

  1. patients with suspected or diagnosed localized gastroesophageal adenocarcinoma (GEA) and
  2. patients diagnosed with de novo metastatic gastroesophageal adenocarcinoma. Fresh tumour, adjacent normal tissue materials, and blood samples will be acquired and utilized to generate molecular data. Stool or rectal swab samples will also be acquired for microbiome analysis. Physiologic, quality of life, epidemiologic, frailty, and other clinical data will be systematically collected as standard of care to serve as clinical correlates for the molecular data.

Arm 1 Primary Objectives

  1. Feasibility to produce a potential molecular signature in a clinically meaningful time point in patients with locally advanced GEA
  2. Study the molecular characteristics of GEA in patients with localized and resectable disease and identify predictive signatures of response to induction therapy and the development of novel treatment regimens
  3. To validate previously identified mutational signatures that defined subgroups of GEA

Arm 2 Primary Objectives

  1. Feasibility to produce a potential molecular signature in a clinically meaningful time point for patients with advanced GEA on 1st line chemotherapy
  2. Use of genotypes and genomic analyses to define therapies, and develop predictive and prognostic models
  3. Assess the feasibility of prospectively identifying distinct genomic characteristics which associate with response to systemic therapy and survival

STUDY ENDPOINTS:

  1. Feasibility of obtaining timely sequencing data (8-12 weeks) to guide treatment for patients progressing on 1st line treatment
  2. Feasibility of using ctDNA, metabolome, immune profiling and other emerging technologies to guide treatment
  3. Establish a program of personalized care for GEA patients in terms of pre-treatment assessment (Physiological and Frailty Risk Assessment, QOLQ, 4. Sarcopenia and Adiposity measurements) and treatment based on clinical-genomic correlations
  4. Establishment of repository of biospecimens (tumour, blood and microbiome)
  5. Establishment of robust preclinical models of GEA: PDO and PDX models
  6. Assess the feasibility of using PDO models to identify drug sensitivity to guide treatment decisions

Details
Condition Esophagogastric Adenocarcinoma
Age 18-100 years
Treatment Molecular Profiling
Clinical Study IdentifierNCT04219137
SponsorUniversity Health Network, Toronto
Last Modified on19 February 2024

Eligibility

 Yes No Not Sure

Inclusion Criteria

Arm 1
Patients with suspected or histologically confirmed localized gastroesophageal adenocarcinoma amenable to curative intent therapy with surgery as standard of care, either with or without induction chemotherapy or chemo radiotherapy
Age 18 years
Eastern Cooperative Group (ECOG) performance status 0-2
Arm 2
Patients must have a histological or radiological diagnosis of advanced gastroesophageal cancer
Patient must have a tumour lesion that is amenable to a core needle biopsy as judged by a staff radiologist. A minimum of 3 x 18G good quality tumour cores must be safely obtainable under CT or US guidance. Biopsy to be completed before systemic therapy begins
Patients must have a measurable lesion by RECIST 1.1 in addition to the lesion that is going to be biopsied. See Section 13.1.3 for the evaluation of measurable disease. Patients with locally advanced gastroesophageal cancer with no metastatic disease who are not candidates for curative intent therapy as per part 1 of the protocol, are eligible for part 2 and are exempt from this criterion
Patients must be fit enough to safely undergo a tumour biopsy as judged by the investigator
Age 18 years
Eastern Cooperative Group (ECOG) performance status 0-2
Life expectancy of greater than 90 days, as judged by the investigator
Patients plan to undergo systemic treatment with platinum-based chemotherapy (e.g. FOLFOX, CF, CX with or without Herceptin) as first line standard systemic palliative treatment, or as part of a first line clinical trial
Within 14 days of the proposed biopsy date, patients must have normal organ and marrow functions

Exclusion Criteria

Arm 1
Patients who are planned for definitive chemoradiation without surgical resection will be excluded from this study
Any other condition that would, in the Investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures
Arm 2
Patients with one or more contraindications to tumour biopsy according to UHN's standard biopsy procedures
Patients who had prior systemic treatment for advanced or metastatic gastroesophageal cancer
Patients who are currently on anti-cancer treatment including chemotherapy for another malignancy
Patients with known brain metastases are excluded from participation in this clinical study
Patients with advanced gastroesophageal cancer who are going to be treated with non-platinum based chemotherapy in the first line setting
Uncontrolled inter-current illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
Any condition that would, in the investigators' judgment, contraindicate the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures
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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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