Test of CD47-SIRPα Inhibitors on the Immune Microenvironment Colon Cancer

Recruiting

• Conditions: Cancer of the Colon

• Registration Number: NCT05955196
• Lead Sponsor: Institut Paoli-Calmettes

Brief Summary

Our goal is to create novel CD47-SIRPα inhibitors using small molecules to reverse TAM-mediated immune suppression and restore anti-tumor immunity in CRCs. Our program uses structure-based drug design to create selective and potent small molecule inhibitors of SIRPα-CD47 to target the tumor microenvironment with greater efficacy and lower toxicity than CD47-targeting antibodies. .

In order to study the activity of CD47-SIRPα inhibitors on the immune microenvironment of tumors, we propose to use organoids derived from biopsies of patients with colon cancer. Tumoroids preserve the patient's tumor stroma (including myeloid cells) and provide an accurate in vitro model of complex tumor immune interaction for the evaluation of immunotherapies.

Detailed Description

Not available

Study Timeline

• Study Start: 2023-01-09
• Study First Submitted: 2023-01-27
• Study First Submitted QC: 2023-07-12
• Study First Posted: 2023-07-21
• Status Verified: 2024-10
• Last Update Submitted: 2024-10-08
• Last Update Posted: 2024-10-09
• Primary Completion: 2025-01-09
• Study Completion: 2027-01-09

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 115

Inclusion Criteria

• Patient over 18 years old
• Patient who has signed a consent to participate;
• Patient with metastatic or non-metastatic colon cancer, or recurrence of colon cancer for whom excision surgery has been proposed;
• Patient affiliated to a social security scheme, or beneficiary of such a scheme

Exclusion Criteria

• Patient who had emergency colon cancer surgery
• Person in an emergency situation or unable to express their consent.
• Adult subject to a legal protection measure (adult under guardianship, curatorship or safeguard of justice),
• Patient unable to submit to the medical follow-up of the trial for geographical, social or psychological reasons

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Establishment of patient derived organoids (minimum n=30) resembling the primary tissue sample	18 months from study launch	the capacity to establish patient-derived organoids from tumor and adjacent normal tissue will be evaluated using a histology score evaluating and comparing primary and organoid sample characteristics.

Secondary Outcome Measures

Name	Time	Method
Establishment of a validated cryobank of patient derived organoids (minimum n=30)	18 months from study launch	the capacity to establish a cryobank of patient-derived organoids from tumor and adjacent normal tissue will be evaluated using a growth score evaluating and comparing organoid sample characteristics pre- and post-cryopreservation and amplification through 4 passages.
To assess the effect of immunotherapy on the antitumor activity of autologous T cells from peripheral blood samples using tumor viability measurements (cell titer glo, FACS)	48 month
Generate a T cell biobank by FACS isolating T cells using the CD3 surface marker directed against the human form	48 month

Trial Locations

Locations (1)

Institut Paoli Calmettes; 🇫🇷 Marseille, France