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NCT05825547: CRIMCAS

Evaluation of Changes in the Immunological Microenvironment Surrounding Subcutaneous Breast Cancer Metastases After Liquid Nitrogen Cryotherapy

Completed NA Last updated 11 March 2025
What this trial tests

NA trial testing Cryotherapy treatment in Breast Cancer in 5 participants. Completed in 17 July 2024.

Timeline
16 February 2022
Primary endpoint
8 March 2023
17 July 2024

Quick facts

Lead sponsorCentre Hospitalier Universitaire de Nīmes
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposeother
Enrollment5
Start date16 February 2022
Primary completion8 March 2023
Estimated completion17 July 2024
Sites1 location across France

Drugs / interventions tested

Conditions studied

Sponsor

Centre Hospitalier Universitaire de Nīmes

Who can join

Adults 18 to 95, female only, with Breast Cancer. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Cryotherapy is a cold ablation technique used in many tumor locations. The destruction of tissues by cryoablation preserves proteins and in particular anti-tumor antigens, which could induce the stimulation of an immune response. Compared to other interventional radiology techniques, cryotherapy induces a higher immunogenic response. Studies describe complex responses with elevated levels of activating NK cells, circulating and anti-tumor T cells, and pro-inflammatory and NF-KB dependent cytokines. In breast cancer, whether or not an immune response is triggered depends on the type of cryoablation used. Indeed, high intensity cryoablation (rapid freezing in one cycle of the entire tumor volume) seems to induce a tumor-specific immunodestructive response, whereas low frequency cryoablation (several small repetitive cycles until a sufficient volume of ice is obtained) does not induce an immunogenic response and can even induce an immunoregulation with immunotolerance of the tumor cells The University Hospital of Nîmes has recently acquired a new liquid nitrogen cryotherapy technique, more powerful than the one classically performed with Argon. This technique is used for palliative and analgesic purposes in patients with metastatic breast cancer presenting painful subcutaneous metastases. The aim of this study is to evaluate in these patients the changes in the tumor microenvironment and the immune response potentially induced by this very high intensity cryotherapy. The study investigators hypothesize that locoregional treatment with liquid nitrogen cryotherapy of subcutaneous breast cancer metastases will allow a systemic response through the induction of an immune response. A better understanding of the type of immune response induced will allow the development of combined therapeutic strategies with curative and not only palliative and analgesic aims.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other recruiting trials for Breast Cancer

Currently open trials in the same condition.

Other Centre Hospitalier Universitaire de Nīmes trials

Trials by the same sponsor.

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Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05825547.

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