Click Here to
Subscribe
Breaking
News, Updates,
& More
Stay Up
to Date

Orgovyx First FDA-Approved Oral Hormone Therapy for Advanced Prostate Cancer

Web Exclusives - FDA Updates, Prostate Cancer

On December 18, 2020, the FDA approved relugolix (Orgovyx; Myovant Sciences), an oral gonadotropin-releasing hormone (GnRH) receptor antagonist, for the treatment of adults with advanced prostate cancer. Relugolix is the first oral androgen-deprivation therapy (ADT) and the first oral GnRH receptor antagonist approved for patients with advanced prostate cancer. The FDA granted relugolix priority review for this indication.

“Today’s approval marks the first oral drug in this class, and it may eliminate some patients’ need to visit the clinic for treatments that require administration by a health care provider,” said Richard Pazdur, MD, FDA’s Director of Oncology Center of Excellence. “This potential to reduce clinic visits can be especially beneficial in helping patients with cancer stay home and avoid exposure during the coronavirus pandemic.”

The American Cancer Society estimated that >190,000 cases of prostate cancer would be diagnosed in the United States in 2020.

The FDA approved relugolix based on data from HERO, a randomized, open-label clinical trial of 622 patients with prostate cancer requiring at least 1 year of ADT because of prostate cancer recurrence after radiation or surgery or patients with newly diagnosed castration-sensitive advanced prostate cancer.

The patients were randomized in a 2:1 ratio to receive 48 weeks of either relugolix 360 mg oral loading dose on the first day, followed by daily oral doses of 120 mg, or to another GnRH receptor antagonist, leuprolide acetate (Lupron Depot) 22.5 mg injection subcutaneously administered every 3 months.

The study’s main efficacy measure was medical castration rate, which was defined as maintaining serum testosterone suppression to castrate levels (ie, <50 ng/dL) by day 29 through 48 weeks of treatment. In the relugolix arm, the medical castration rate was 96.7% (95% confidence interval, 94.9%-97.9%), an almost complete efficacy rate.

The most common (≥10%) adverse reactions reported with relugolix were hot flushes, musculoskeletal pain, fatigue, diarrhea, and constipation. The most common (≥15%) laboratory abnormalities were increased glucose, triglyceride, alanine aminotransferase, and aspartate aminotransferase levels. Decreased hemoglobin level was also observed.

The recommended relugolix dose is an oral loading dose of 360 mg on the first day, then a daily oral dose of 120 mg.

Related Items
FDA Approves Margenza for Treatment of Metastatic HER2-Positive Breast Cancer
Web Exclusives published on March 2, 2021 in Breast Cancer, FDA Updates
New Oncology Drugs/Indications Approved by the FDA: December 16 2020 - February 3, 2021
JHOP - February 2021 Vol 11, No 1 published on February 22, 2021 in FDA Updates
Recent Cancer Drugs Approved by the FDA: September-December 1, 2020
JHOP - December 2020 Vol 10, No 6 published on December 21, 2020 in FDA Updates
Gavreto, RET Inhibitor, FDA Approved for Metastatic NSCLC with RET Fusions
Web Exclusives published on November 16, 2020 in FDA Updates
Zepzelca New Therapy Approved for Metastatic Small-Cell Lung Cancer
Web Exclusives published on June 22, 2020 in FDA Updates, Lung Cancer
Opdivo Approved for Advanced Esophageal Squamous-Cell Carcinoma
Web Exclusives published on June 22, 2020 in FDA Updates
FDA Approves Cyramza plus Tarceva for First-Line Treatment of Metastatic NSCLC with EGFR Mutation
Web Exclusives published on June 8, 2020 in FDA Updates, Lung Cancer
Opdivo plus Yervoy and Chemotherapy Approved as First-Line Therapy for Metastatic NSCLC, Regardless of PD-L1 Expression
Web Exclusives published on June 2, 2020 in FDA Updates, Lung Cancer
Tecentriq plus Avastin First Immunotherapy Regimen Approved for Metastatic Hepatocellular Carcinoma
Web Exclusives published on June 2, 2020 in FDA Updates, Hepatocellular Carcinoma
Lynparza First Targeted Therapy Approved for Metastatic Prostate Cancer with HRR Mutation
Web Exclusives published on May 26, 2020 in FDA Updates, Prostate Cancer
Last modified: April 15, 2021