MACARAN: Study of the Association Between Tumor Microenvironment Macrophages and Treatment Response in Squamous Cell Carcinoma of the Anal Canal

Sponsor
Groupe Hospitalier Paris Saint Joseph (Other)
Overall Status
Active, not recruiting
CT.gov ID
NCT05019235
Collaborator
(none)
154
1
16.9
9.1

Study Details

Study Description

Brief Summary

Squamous cell carcinoma of the anal canal is a relatively rare cancer (less than 3% of digestive cancers) but its incidence has been increasing in recent decades, probably because of its association with HPV (human papillomavirus) infection. Its extension is mainly locoregional pelvic by lymphatic route, rarely metastatic. The standard treatment nowadays is radiotherapy combined with chemotherapy for locally advanced tumors (T2 or more corresponding to a size of 2 cm or more, or N+): mitomycin C and 5-FU (or capecitabine). While the 5-year disease control rates are excellent in localized forms, around 80%, for locally advanced tumors, the prognosis is poorer, with only 70% progression-free survival at 3 years in patients treated with radiochemotherapy. In these patients, it seems particularly interesting to understand the mechanisms of tumor resistance to treatments, in order to increase their efficacy and to propose new therapeutic targets.

The microenvironment of solid tumors, which has been extensively studied in the last two decades, is now recognized as a major factor in tumor development and invasion. Immune cells, and more particularly macrophages, represent an essential component of the tumor microenvironment, and constitute a link between innate and adaptive responses. The presence of tumor-associated macrophages (TAMs), and in particular M2 macrophages, with an anti-inflammatory and anti-tumor action (as opposed to M1 macrophages which are on the contrary tumoricidal and pro-inflammatory), has been studied in many cancers, such as head and neck squamous cell carcinoma, hepatocellular carcinoma, cervical squamous cell carcinoma, and non-small cell lung cancer. To investigator's knowledge, it has not been studied in squamous cell carcinoma of the anal canal.

Condition or Disease Intervention/Treatment Phase

    Study Design

    Study Type:
    Observational
    Actual Enrollment :
    154 participants
    Observational Model:
    Cohort
    Time Perspective:
    Retrospective
    Official Title:
    Study of the Association Between Tumor Microenvironment Macrophages and Treatment Response in Squamous Cell Carcinoma of the Anal Canal
    Actual Study Start Date :
    Aug 5, 2021
    Actual Primary Completion Date :
    Sep 5, 2021
    Anticipated Study Completion Date :
    Dec 31, 2022

    Outcome Measures

    Primary Outcome Measures

    1. Effect of tumor-associated macrophages on treatment efficacy in locally advanced [Year 1]

      This outcome corresponds to tumor recurrence (local or distant) at 1 year.

    Secondary Outcome Measures

    1. Phenotype of tumor-associated macrophages [Year 1]

      This outcome corresponds to distribution of tumor-associated macrophages according to their phenotype, M1 or M2, and their location (intra-tumor, peri-tumor stroma).

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Patient whose age ≥ 18 years

    • Patient with locally advanced squamous cell carcinoma of the anal canal for which he/she has received radiotherapy/chemotherapy: tumor > 2cm and/or locoregional lymph node involvement

    • Patient whose main treatment (radiotherapy and chemotherapy) was performed at the Paris Saint-Joseph Hospital

    • French-speaking patient

    Exclusion Criteria:
    • Patient with missing or unanalyzable material

    • Patient with missing data

    • Patient under guardianship or curatorship

    • Patient deprived of liberty

    • Patient under court protection

    • Patient objecting to the use of his data for this research

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Groupe Hospitalier Paris Saint-Joseph Paris France 75014

    Sponsors and Collaborators

    • Groupe Hospitalier Paris Saint Joseph

    Investigators

    • Principal Investigator: Eric P Raymond, Groupe Hospitalier Paris Saint Joseph

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    Responsible Party:
    Groupe Hospitalier Paris Saint Joseph
    ClinicalTrials.gov Identifier:
    NCT05019235
    Other Study ID Numbers:
    • MACARAN
    First Posted:
    Aug 24, 2021
    Last Update Posted:
    Jan 14, 2022
    Last Verified:
    Aug 1, 2021
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Jan 14, 2022