Prostate Adenocarcinoma Clinical Trial
Official title:
Randomized Phase 2 Study: Neoadjuvant Conditioning of Prostate Cancer Tumor Microenvironment Using a Novel Chemokine-Modulating Regimen
This phase II trial studies how well aspirin and rintatolimod with or without interferon-alpha 2b work in treating patients with prostate cancer before surgery. Aspirin may help to keep the prostate cancer from coming back. Rintatolimod may stimulate the immune system and interfere with the ability of tumor cells to grow and spread. Interferon-alpha 2b may improve the body's natural response to infections and may slow tumor growth. It is not yet known how well rintatolimod, aspirin, and interferon-alpha 2b work in treating patients with prostate cancer undergoing surgery.
PRIMARY OBJECTIVES: I. Assess the immunomodulatory effectiveness of the combination of rintatolimod and aspirin with or without recombinant interferon alfa-2b (interferon [IFN]-alpha), in participants with localized prostate cancer undergoing radical prostatectomy. SECONDARY OBJECTIVES: I. Assess the safety and toxicity of the treatment combinations in participants with localized prostate cancer undergoing radical prostatectomy. II. Assess the antitumor activity between treatment arms. EXPLORATORY OBJECTIVES: I. Compare the resected tumor tissue specimen and surrounding tissue samples of both study arms (pre versus [vs] post-chemokine modulatory [CKM] treatment, with vs without CKM, CKM doublet vs CKM triplet) with regards to infiltrating T cell subtypes, effector T cell (Teff)/regulatory T cell (Treg) ratios, CD11b+ myeloid-derived suppressor cell (MDSC); the expression of chemokine receptors and immune checkpoint molecules on immune cells; local expression of Teff-attracting chemokines and Treg/MDSC-favoring chemokines; ribonucleic acid (RNA) signatures of groups of immune-regulatory genes that are modulated by the CKM regimen. OUTLINE: Patients are randomized to 1 of 3 arms. ARM I: Patients receive aspirin orally (PO) two times a day (BID) from day -7 to 7 days prior to surgery. Patients also receive recombinant interferon alfa-2b intravenously (IV) over 20 minutes and rintatolimod IV over 2 hours on days 1-3, and 8-10 in the absence of disease progression or unacceptable toxicity. Patients then undergo radical prostatectomy on or between day 17-24. ARM II: Patients receive aspirin PO BID from day -7 to 7 days prior to surgery and rintatolimod IV over 2 hours on days 1-3 and 8-10 in the absence of disease progression or unacceptable toxicity. Patients then undergo radical prostatectomy on or between day 17-24. ARM III: Patients undergo radical prostatectomy about 4 weeks after enrollment. After completion of study treatment, patients are followed up at 30 days. ;
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