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Prostate Cancer Biomarker Development: National Cancer Institute's Early Detection Research Network Prostate Cancer Collaborative Group Review.

ABSTRACT: Prostate cancer remains the most common non-skin cancer and second leading cause of death among men in the United States. Although progress has been made in diagnosis and risk assessment, many clinical questions remain regarding early identification of prostate cancer and management. The early detection of aggressive disease continues to provide high curative rates if diagnosed in a localized state. Unfortunately, prostate cancer displays significant heterogeneity within the prostate organ and between individual patients making detection and treatment strategies complex. Although prostate cancer is common among men, the majority will not die from prostate cancer, introducing the issue of overtreatment as a major concern in clinical management of the disease. The focus of the future is to identify those at highest risk for aggressive prostate cancer and to develop prevention and screening strategies, as well as discerning the difference in malignant potential of diagnosed tumors. The Prostate Cancer Research Group of the National Cancer Institute's Early Detection Research Network has contributed to the progress in addressing these concerns. This summary is an overview of the activities of the group.See all articles in this CEBP Focus section, "NCI Early Detection Research Network: Making Cancer Detection Possible."

SUBMITTER: Liss MA

PROVIDER: S-EPMC7710596 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:While radiosensitizing chemotherapy has improved survival for several types of cancer, current chemoradiation regimens remain ineffective for many patients and have substantial toxicities. Given the strong need for the development of novel radiosensitizers to further improve patient outcomes, the Radiation Research Program (RRP) and the Small Business Innovation Research (SBIR) in the National Cancer Institute (NCI) issued a Request for Proposals (RFP) through the NCI SBIR Development Center's contracts pathway. We sought to determine the research outcomes for the NCI SBIR Development Center's funded proposals for the development of radiosensitizers. We identified SBIR-funded contracts and grants for the development of radiosensitizers from 2009 to 2018 using the National Institutes of Health (NIH) Reporter database. Research outcomes of the NCI SBIR Development Center-funded proposals were determined using a comprehensive internet search. We searched PubMed, clinicaltrials.gov, company websites and google.com for research articles, abstracts and posters, clinical trials, press releases and other news, related to progress in the development of funded radiosensitizers. To protect the intellectual property of the investigators and small businesses, all information obtained and reported is publicly available. The SBIR Program has funded four contracts and 11 grants for the development of novel radiosensitizers. Two companies have received phase IIb bridge awards. Overall, 50% of companies (6/12) have successfully advanced their investigational drugs into prospective clinical trials in cancer patients, and all but one company are investigating their drug in combination with radiation therapy as described in the NCI SBIR Development Center proposal. To date, only one company has initiated a randomized trial of standard of care with or without their radiosensitizer. In conclusion, the NCI SBIR Development Center has funded the development of novel radiosensitizers leading to clinical trials of novel drugs in combination with radiation therapy. Continued follow-up is needed to determine if any of these novel radiosensitizers produce improved tumor control and/or overall survival.

Project description:BackgroundAdolescent and young adult (AYA) patients with cancer have not seen the same improvements in survival as younger (pediatric) patients and older patients (adults 40 years old or older). This may be related to their lower participation in clinical trials.MethodsThis study examined AYA patient accrual to SWOG Cancer Research Network phase 1 to 3 clinical treatment trials for 29 cancers over 25 years (January 1996 to December 2020). Trial enrollments for AYA patients (15-39 years old) were compared with trial enrollments for older patients (40 years old or older) in SWOG and with US AYA cancer population rates derived from US Census and National Cancer Institute/Surveillance, Epidemiology, and End Results data.ResultsIn total, 84,219 patients were enrolled in SWOG treatment trials, including 7109 AYA patients (8.4%); in contrast, AYAs constituted 3.8% of the US cancer population. By histology, the highest proportions of AYA patients were in trials for Hodgkin disease (825 of 1220; 67.6%) and acute lymphocytic leukemia (350 of 678; 51.6%), whereas breast cancer trials had the greatest number of AYA patients (3032 of 32,693; 9.3%). SWOG AYA patients were more often female (68.8% vs 58.7%; P < .001), Black (10.1% vs 8.2%; P < .001), and Hispanic (10.6% vs 5.6%; P < .001) than SWOG patients who were 40 years old or older, and they were more often female (68.8% vs 65.1%; P < .001) but less often Black (10.1% vs 11.8%; P < .001) or Hispanic (10.6% vs 12.8%; P < .001) than AYA patients in the US cancer population.ConclusionsAYA patients with cancer were well represented in SWOG clinical trials in comparison with US cancer population patients with the same cancers. The SWOG AYA population was more racially/ethnically diverse than older SWOG patients, although it was less diverse than the US AYA cancer population.Lay summaryAdolescent and young adult (AYA) patients with cancer (aged 15-39 years) have not seen the same improvements in survival as younger (pediatric) patients and older patients (adults 40 years old or older). This may be related to their lower participation in clinical trials. This study evaluated the extent to which AYA patients were enrolled in a large, National Cancer Institute-sponsored network group over 25 years (1996-2020). Overall, 8.4% of the enrolled patients (7109 of 84,219) were AYAs; this was twice the corresponding rate of 3.8% in the US cancer population. AYA patients were also more racially/ethnically diverse than older trial patients, although they were less racially/ethnically diverse than the US AYA cancer population.

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Prostate Cancer Biomarker Development: National Cancer Institute's Early Detection Research Network Prostate Cancer Collaborative Group Review.

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