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      Oral Relugolix for Androgen-Deprivation Therapy in Advanced Prostate Cancer

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          Abstract

          <p class="first" id="d5193385e161">Injectable luteinizing hormone-releasing hormone agonists (e.g., leuprolide) are the standard agents for achieving androgen deprivation for prostate cancer despite the initial testosterone surge and delay in therapeutic effect. The efficacy and safety of relugolix, an oral gonadotropin-releasing hormone antagonist, as compared with those of leuprolide are not known. </p>

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          Most cited references27

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          2010 ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines.

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            The efficacy and safety of degarelix: a 12-month, comparative, randomized, open-label, parallel-group phase III study in patients with prostate cancer.

            To evaluate the efficacy and safety of degarelix, a new gonadotrophin-releasing hormone (GnRH) antagonist (blocker), vs leuprolide for achieving and maintaining testosterone suppression in a 1-year phase III trial involving patients with prostate cancer. In all, 610 patients with adenocarcinoma of the prostate (any stage; median age 72 years; median testosterone 3.93 ng/mL, median prostate-specific antigen, PSA, level 19.0 ng/mL) were randomized and received study treatment. Androgen-deprivation therapy was indicated (neoadjuvant hormonal treatment was excluded) according to the investigator's assessment. Three dosing regimens were evaluated: a starting dose of 240 mg of degarelix subcutaneous (s.c.) for 1 month, followed by s.c. maintenance doses of 80 mg or 160 mg monthly, or intramuscular (i.m.) leuprolide doses of 7.5 mg monthly. Therapy was maintained for the 12-month study. Both the intent-to-treat (ITT) and per protocol populations were analysed. The primary endpoint of the trial was suppression of testosterone to
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              Diabetes and cardiovascular disease during androgen deprivation therapy: observational study of veterans with prostate cancer.

              Previous studies indicate that androgen deprivation therapy for prostate cancer is associated with diabetes and cardiovascular disease among older men. We evaluated the relationship between androgen deprivation therapy and incident diabetes and cardiovascular disease in men of all ages with prostate cancer. We conducted an observational study of 37,443 population-based men who were diagnosed with local or regional prostate cancer in the Veterans Healthcare Administration from January 1, 2001, through December 31, 2004, with follow-up through December 31, 2005. Cox proportional hazards models were used to assess whether androgen deprivation therapy with gonadotropin-releasing hormone (GnRH) agonists, oral antiandrogens, the combination of the two (ie, combined androgen blockade), or orchiectomy was associated with diabetes, coronary heart disease, myocardial infarction, sudden cardiac death, or stroke, after adjustment for patient and tumor characteristics. All statistical tests were two-sided. Overall, 14,597 (39%) of the 37,443 patients were treated with androgen deprivation therapy. Treatment with GnRH agonists was associated with statistically significantly increased risks of incident diabetes (for GnRH agonist therapy, 159.4 events per 1000 person-years vs 87.5 events for no androgen deprivation therapy, difference = 71.9, 95% confidence interval [CI] = 71.6 to 72.2; adjusted hazard ratio [aHR] = 1.28, 95% CI = 1.19 to 1.38), incident coronary heart disease (aHR = 1.19, 95% CI = 1.10 to 1.28), myocardial infarction (12.8 events per 1000 person-years for GnRH agonist therapy vs 7.3 for no androgen deprivation therapy, difference = 5.5, 95% CI = 5.4 to 5.6; aHR = 1.28, 95% CI = 1.08 to 1.52), sudden cardiac death (aHR = 1.35, 95% CI = 1.18 to 1.54), and stroke (aHR = 1.22, 95% CI = 1.10 to 1.36). Combined androgen blockade was statistically significantly associated with an increased risk of incident coronary heart disease (aHR = 1.27, 95% CI = 1.05 to 1.53), and orchiectomy was associated with coronary heart disease (aHR = 1.40, 95% CI = 1.04 to 1.87) and myocardial infarction (aHR = 2.11, 95% CI = 1.27 to 3.50). Oral antiandrogen monotherapy was not associated with any outcome studied. Androgen deprivation therapy with GnRH agonists was associated with an increased risk of diabetes and cardiovascular disease.
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                Author and article information

                Journal
                New England Journal of Medicine
                N Engl J Med
                Massachusetts Medical Society
                0028-4793
                1533-4406
                May 29 2020
                Affiliations
                [1 ]From the Carolina Urologic Research Center, Myrtle Beach, SC (N.D.S.); the University of Montreal Hospital Center, Montreal (F.S.); the Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma City (M.S.C.); the Duke Cancer Institute Center for Prostate and Urologic Cancers, Duke University, Durham, NC (D.J.G.); Urology San Antonio, San Antonio, TX (D.R.S.); Chesapeake Urology, Towson, MD (R.T.); the Department of Strategic Investigation on Comprehensive Cancer Network, Interfaculty...
                Article
                10.1056/NEJMoa2004325
                32469183
                f19c7734-a315-43bb-827c-d6c2fa360442
                © 2020
                History

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