Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-25 @ 12:27 AM
Ignite Modification Date:
2025-12-25 @ 12:27 AM
NCT ID:
NCT04009967
Brief Summary:
Various approaches are currently being developed for prostate cancer immunotherapy. However, a major challenge facing the development of cancer immunotherapy is the identification of tumors that would best respond to this type of treatment. Different studies suggest that prostate cancer more likely to progress are more infiltrated by exhausted T cells expressing the cell surface protein PD1 (Programmed cell death 1). Therefore, there is a strong rationale for selecting patients at higher risk of progression for testing the efficacy of anti-PD1 therapy.
High glucose metabolism as detected by fludeoxyglucose F18 (FDG)-positron emission tomography (PET) (18FDG-PET) imagery is an innovative biological biomarker-based method to identify patients at higher risk of recurrence and early failure to hormonotherapy. Recent study demonstrated that high intra-prostatic 18-FDG-uptake was associated with higher Gleason grades. Therefore the one third of Gleason ≥ 8 prostate cancer patients with higher 18FDG uptake would be ideal candidates for early immunotherapy treatments based on anti-PD-1 such as pembrolizumab.
The study aimed to identify biomarkers predictive the response to Pembrolizumab given prior to radical prostatectomy in participants with primary prostate cancer at high risk of progression.
Detailed Description:
This is a Phase II, single-arm and open-label trial of pembrolizumab (MK-3475) in localized prostate cancer patients with newly diagnosed non-metastatic prostate cancer (Gleason grade ≥8 on biopsy) with positive tumor by FDG-PET (SUV max \>4) who chose to undergo radical prostatectomy and lymph node dissection as primary treatment.
The trial will meet its endpoint if a reduction in cancer extent, proliferative index and increased apoptosis, as well as an induction of favorable immune cell infiltration and immune checkpoint expression profiles are observed after treatment compare to baseline..
Study:
NCT04009967
Study Brief:
Protocol Section:
NCT04009967