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Song W, Ma M, Zhang W, Feng R, Lu C, Zhang HY, Zhang Y, Zhao J. Visible-light-induced C(sp 3)-H bromination of 4-methylthiophene derivatives with HBr/H 2O 2. Org Biomol Chem 2024; 22:4145-4152. [PMID: 38713051 DOI: 10.1039/d4ob00547c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
A convenient method to synthesize ethyl 4-(bromomethyl)thiophene-3-carboxylate derivatives has been developed via a visible-light-induced radical process in good yields and with wide functional group tolerance under air conditions and at ambient temperature. The present protocol has the advantages of a high atom economy, easy purification, and environmental friendliness as it employs HBr as the bromine source and the cheap and low-toxic H2O2 as the oxidant. The synthetic utility of this method is demonstrated by a gram scale reaction and its application in the innovative synthesis of the clinical drug relugolix.
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Affiliation(s)
- Wenbo Song
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin 300131, China
| | - Ming Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin 300131, China
| | - Wenjing Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin 300131, China
| | - Ranran Feng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin 300131, China
| | - Congcong Lu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin 300131, China
| | - Hong-Yu Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin 300131, China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300131, China.
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, Tianjin 300131, China
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Spratt DE, George DJ, Shore ND, Cookson MS, Saltzstein DR, Tutrone R, Bossi A, Brown BA, Lu S, Fallick M, Hanson S, Tombal BF. Efficacy and Safety of Radiotherapy Plus Relugolix in Men With Localized or Advanced Prostate Cancer. JAMA Oncol 2024; 10:594-602. [PMID: 38451492 PMCID: PMC10921349 DOI: 10.1001/jamaoncol.2023.7279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/26/2023] [Indexed: 03/08/2024]
Abstract
Importance Combination androgen deprivation therapy (ADT) with radiotherapy is commonly used for patients with localized and advanced prostate cancer. Objective To assess the efficacy and safety of the oral gonadotropin-releasing hormone antagonist relugolix with radiotherapy for treating prostate cancer. Design, Setting, and Participants This multicenter post hoc analysis of patients with localized and advanced prostate cancer receiving radiotherapy in 2 randomized clinical trials (a phase 2 trial of relugolix vs degarelix, and a subset of the phase 3 HERO trial of relugolix vs leuprolide acetate) included men who were receiving radiotherapy and short-term (24 weeks) ADT (n = 103) from 2014 to 2015 and men receiving radiotherapy and longer-term (48 weeks) ADT (n = 157) from 2017 to 2019. The data were analyzed in November 2022. Interventions Patients receiving short-term ADT received relugolix, 120 mg, orally once daily (320-mg loading dose) or degarelix, 80 mg, 4-week depot (240-mg loading dose) for 24 weeks with 12 weeks of follow-up. Patients receiving longer-term ADT received relugolix, 120 mg, orally once daily (360-mg loading dose) or leuprolide acetate injections every 12 weeks for 48 weeks, with up to 90 days of follow-up. Main Outcomes and Measures Castration rate (testosterone level <50 ng/dL [to convert to nmol/L, multiply by 0.0347) at all scheduled visits between weeks 5 and 25 for patients receiving short-term ADT and weeks 5 and 49 for patients receiving longer-term ADT. Results Of 260 patients (38 Asian [14.6%], 23 Black or African American [8.8%], 21 Hispanic [8.1%], and 188 White [72.3%] individuals), 164 (63.1%) received relugolix. Relugolix achieved castration rates of 95% (95% CI, 87.1%-99.0%) and 97% (95% CI, 90.6%-99.0%) among patients receiving short-term and longer-term ADT, respectively. Twelve weeks post-short-term relugolix, 34 (52%) achieved testosterone levels to baseline or more than 280 ng/dL. Ninety days post longer-term ADT, mean (SD) testosterone levels were 310.5 (122.4) (106.7) ng/dL (relugolix; n = 15) vs 53.0 ng/dL (leuprolide acetate; n = 8) among the subset assessed for testosterone recovery. Castration resistance-free survival was not statistically different between the relugolix and leuprolide acetate cohorts (hazard ratio, 0.97; 95% CI, 0.35-2.72; P = .62). Adverse events grade 3 or greater for short-term or longer-term relugolix (headache, hypertension, and atrial fibrillation) were uncommon (less than 5%). Conclusions and Relevance The results of these 2 randomized clinical trials suggest that relugolix rapidly achieves sustained castration in patients with localized and advanced prostate cancer receiving radiotherapy. No new safety concerns were identified when relugolix was used with radiotherapy.
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Affiliation(s)
- Daniel E. Spratt
- University Hospitals Seidman Cancer Center and Case Western Reserve University, Cleveland, Ohio
| | - Daniel J. George
- Duke Cancer Institute Center for Prostate and Urologic Cancers, Duke University, Durham, North Carolina
| | - Neal D. Shore
- Carolina Urologic Research Center and GenesisCare USA, Myrtle Beach, South Carolina
| | - Michael S. Cookson
- Department of Urology, The University of Oklahoma Health Sciences Center, Oklahoma City
| | | | | | - Alberto Bossi
- Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France
| | | | - Sophia Lu
- Myovant Sciences Inc, Brisbane, California
| | | | | | - Bertrand F. Tombal
- Institut de Recherche Clinique, Université Catholique de Louvain, Brussels, Belgium
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Spratt DE, Dorff T, McKay RR, Lowentritt BH, Fallick M, Gatoulis SC, Flanders SC, Ross AE. Evaluating relugolix for the treatment of prostate cancer in real-world settings of care: the OPTYX study protocol. Future Oncol 2024; 20:727-738. [PMID: 38488039 DOI: 10.2217/fon-2023-0748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024] Open
Abstract
OPTYX is a multi-center, prospective, observational study designed to further understand the actual experience of patients with advanced prostate cancer treated with relugolix (ORGOVYX®), an oral androgen deprivation therapy (ADT), by collecting clinical and patient-reported outcomes from routine care settings. The study aims to enroll 1000 consented patients with advanced prostate cancer from community, academic and government operated clinical practices across the USA. At planned timepoints, real-world data analysis on treatment patterns, adherence and safety as well as health outcomes and health-related quality-of-life (HRQOL) after treatment discontinuation will be published in scientific peer-reviewed journals and presented at relevant conferences. This study will provide real-world data for practitioners and researchers in their understanding of the safety and effectiveness of relugolix. Clinical Trial Registration: NCT05467176 (ClinicalTrials.gov).
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Affiliation(s)
- Daniel E Spratt
- Radiation Oncology, UH Seidman Cancer Center/Case Western Reserve University, Cleveland, OH 441062, USA
| | - Tanya Dorff
- Medical Oncology, City of Hope, Duarte, CA 910103, USA
| | - Rana R McKay
- Medical Oncology, UC San Diego, La Jolla, CA 920374, USA
| | | | | | | | - Scott C Flanders
- Myovant Sciences Inc., Brisbane, CA & Sumitomo Pharma America Inc., Marlborough, MA 017528, USA
| | - Ashley E Ross
- Urology, Northwestern Medicine, Chicago, IL 60611, USA
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de Lange ME, Semmler A, Clark TJ, Mol BWJ, Bet PM, Huirne JAF, Hehenkamp WJK. Considerations on implementation of the newest treatment for symptomatic uterine fibroids: Oral GnRH antagonists. Br J Clin Pharmacol 2024; 90:392-405. [PMID: 37653680 DOI: 10.1111/bcp.15897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/02/2023] Open
Abstract
Novel gonadotrophin releasing hormone (GnRH) antagonist treatments have recently been developed in combination with hormonal add-back therapy, as an oral treatment option for women suffering from uterine fibroids. Registration trials assessing the GnRH antagonist combination preparations with relugolix, elagolix and linzagolix have assessed treatment efficacy for fibroid-related heavy menstrual blood loss in comparison to placebo. Marketing authorization has been granted by several agencies including those in Europe, the United Kingdom and the United States. While the registration trials report a robust effect on the reduction of heavy menstrual blood loss and improvement in quality of life scores, reticence is advised before widespread prescription. In this review, we demonstrate limitations in the trial data, namely a lack of generalizability due to the restricted study population, the lack of transparency in the distribution of disease-level characteristics limiting the predictability of treatment success in the real-world diverse population, and the absence of any comparison to current alternative treatment methods. Importantly, no clinically meaningful volume reductions were found with GnRH antagonist combination preparations, and long-term safety data, particularly concerning modest but stable bone mineral density decline, need further addressing. Symptoms related to uterine fibroids adversely affect many women's quality of life and effective medical treatments are lacking. However, despite the urgent need for conservative treatments, it is vitally important that novel drugs, like combination oral GnRH antagonists, undergo sufficiently rigorous evaluation of safety, effectiveness and cost-effectiveness in a representative population and are compared with alternative treatment methods before introduction into mainstream clinical practice.
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Affiliation(s)
- Maria E de Lange
- Department of Obstetrics and Gynaecology, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
| | - Annika Semmler
- Department of Obstetrics and Gynaecology, Amsterdam UMC, location Vrije Universteit MC, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - T Justin Clark
- Department of Obstetrics and Gynaecology, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - Ben Willem J Mol
- Department of Obstetrics and Gynaecology, Monash University Monash Medical Centre, Clayton, Victoria, Australia
- Department of Obstetrics and Gynaecology, Aberdeen Centre for Women's Health Research, University of Aberdeen, Aberdeen, UK
- Department of Obstetrics and Gynaecology, University of Aberdeen, Aberdeen, UK
| | - Pierre M Bet
- Department of Clinical Pharmacology and Pharmacy, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Judith A F Huirne
- Department of Obstetrics and Gynaecology, Amsterdam UMC, location Vrije Universteit MC, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Wouter J K Hehenkamp
- Department of Obstetrics and Gynaecology, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
- Department of Obstetrics and Gynaecology, Amsterdam UMC, location Vrije Universteit MC, Amsterdam, The Netherlands
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Tutrone R, Saad F, George DJ, Tombal B, Bailen JL, Cookson MS, Saltzstein DR, Hanson S, Brown B, Lu S, Fallick M, Shore ND. Testosterone Recovery for Relugolix Versus Leuprolide in Men with Advanced Prostate Cancer: Results from the Phase 3 HERO Study. Eur Urol Oncol 2023:S2588-9311(23)00290-0. [PMID: 38143206 DOI: 10.1016/j.euo.2023.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND In the HERO study, relugolix demonstrated sustained testosterone suppression superior to that of leuprolide acetate (97% vs 89%; difference 7.9% [95% confidence interval, 4.1-12%; p < 0.001]). OBJECTIVE To analyze testosterone recovery in a prespecified subset of men from the HERO study not indicated to continue androgen deprivation therapy. DESIGN, SETTING, AND PARTICIPANTS Men (N = 934) were randomized (2:1) to receive relugolix 120 mg orally daily or leuprolide acetate injections every 12 wk for 48 wk. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Testosterone recovery was assessed in 184 men who completed 48 wk of treatment. During the 90-d recovery period, assessments included time to testosterone recovery (>280 ng/dl; ≥80% of baseline testosterone), serum levels of prostate-specific antigen and pituitary hormones, and adverse events. RESULTS AND LIMITATIONS The cumulative incidence rate of testosterone recovery to >280 ng/dl at 90 d following drug discontinuation was significantly higher in the relugolix cohort (n = 137) than in the leuprolide acetate cohort (n = 47; 54% vs 3.2%; nominal p = 0.002). The median time to testosterone recovery was faster following relugolix treatment than with leuprolide acetate treatment (86.0 d vs 112.0 d). Compared with leuprolide acetate, more men treated with relugolix achieved ≥80% of baseline testosterone levels (39% vs 2.1%). Men ≤65 yr and those with baseline testosterone greater than the median had a higher incident rate of testosterone recovery. Adverse events were generally similar between treatment groups. One limitation is the short testosterone recovery follow-up period. CONCLUSIONS Oral relugolix had faster and more complete recovery of testosterone to normal levels after treatment discontinuation than leuprolide acetate in a subset of men from the HERO study. The clinical implications of a faster testosterone recovery with relugolix may be significant for men being treated with androgen deprivation therapy and influence treatment decisions. PATIENT SUMMARY The male hormone testosterone is reduced during androgen deprivation therapy for prostate cancer. Reduced testosterone levels cause side effects, impacting patient quality of life. When treatment is stopped, the side effects lessen over time as the levels of testosterone come back to pretreatment range (testosterone recovery). In this study, we found that the time to testosterone recovery was faster with relugolix than with leuprolide acetate.
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Affiliation(s)
| | - Fred Saad
- University of Montreal Hospital Centre, Montreal, QC, Canada
| | - Daniel J George
- Duke Cancer Institute Center for Prostate and Urologic Cancers, Duke University, Durham, NC, USA
| | - Bertrand Tombal
- Institut de Recherche Clinique, Université Catholique de Louvain, Brussels, Belgium
| | | | - Michael S Cookson
- Department of Urology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | | | | | | | - Sophia Lu
- Myovant Sciences, Inc., Brisbane, CA, USA
| | | | - Neal D Shore
- Carolina Urologic Research Center and GenesisCare USA, Myrtle Beach, SC, USA
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Tombal B, Collins S, Morgans AK, Hunsche E, Brown B, Zhu E, Bossi A, Shore N. Impact of Relugolix Versus Leuprolide on the Quality of Life of Men with Advanced Prostate Cancer: Results from the Phase 3 HERO Study. Eur Urol 2023; 84:579-587. [PMID: 37833178 DOI: 10.1016/j.eururo.2023.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/22/2023] [Accepted: 09/10/2023] [Indexed: 10/15/2023]
Abstract
BACKGROUND Relugolix, an oral gonadotropin-releasing hormone receptor antagonist, demonstrated testosterone suppression to castrate levels in men with advanced prostate cancer (PCa) in the HERO study. Since advanced PCa and its treatments can impact patients' daily life, it is imperative to understand the impact of systemic therapy on patient health-related quality of life (HRQOL). OBJECTIVE To report the HRQOL for patients on relugolix compared with those on leuprolide in on-treatment and testosterone recovery periods of the HERO study. DESIGN, SETTING, AND PARTICIPANTS A phase 3 randomized controlled study was conducted in 934 patients with advanced PCa. INTERVENTION Patients underwent 2:1 randomization and received relugolix 120 mg orally once daily or leuprolide 3-mo injections for 48 wk. Testosterone recovery was evaluated in a patient subset. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS HRQOL evaluations were based on the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (EORTC QLQ-C30) and the Prostate Cancer Module (EORTC QLQ-PR25) during treatment and testosterone recovery phases. In a post hoc analysis, predictors of HRQOL deterioration were evaluated. RESULTS AND LIMITATIONS No statistically significant differences between the two groups were found in changes from baseline to the end of treatment in either the EORTC QLQ-C30 or the EORTC QLQ-PR25 instrument. During the testosterone recovery phase, hormonal treatment-related symptoms scores were lower for relugolix than for leuprolide, suggesting a lower burden of hormone-related symptoms associated with a treatment that has more rapid testosterone recovery after treatment cessation. Limitations include low patient numbers in the testosterone recovery group. CONCLUSIONS Oral relugolix is a therapeutic option with similar patient-reported HRQOL to leuprolide, providing an oral option for androgen deprivation therapy associated with a more rapid testosterone reduction. PATIENT SUMMARY In men with advanced prostate cancer, relugolix had similar health-related quality of life to leuprolide.
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Affiliation(s)
- Bertrand Tombal
- Institut de Recherche clinique, Université catholique de Louvain, Brussels, Belgium.
| | - Sean Collins
- Department of Radiation Medicine, Medstar Georgetown University Hospital, Washington, DC, USA
| | | | | | | | - Emily Zhu
- Myovant Sciences, Inc., Brisbane, CA, USA
| | - Alberto Bossi
- Department of Radiotherapy, Institut Gustave Roussy, Villejuif, France
| | - Neal Shore
- Carolina Urologic Research Center, Myrtle Beach, SC, USA
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Gallagher L, Xiao J, Hsueh J, Shah S, Danner M, Zwart A, Ayoob M, Yung T, Simpson T, Fallick M, Kumar D, Leger P, Dawson NA, Suy S, Collins SP. Early biochemical outcomes following neoadjuvant/adjuvant relugolix with stereotactic body radiation therapy for intermediate to high risk prostate cancer. Front Oncol 2023; 13:1289249. [PMID: 37916156 PMCID: PMC10616590 DOI: 10.3389/fonc.2023.1289249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/02/2023] [Indexed: 11/03/2023] Open
Abstract
Introduction Injectable GnRH receptor agonists have been shown to improve cancer control when combined with radiotherapy. Prostate SBRT offers an abbreviated treatment course with comparable efficacy to conventionally fractionated radiotherapy. Relugolix is a new oral GnRH receptor antagonist which achieves rapid, sustained testosterone suppression. This prospective study sought to evaluate early testosterone suppression and PSA response following relugolix and SBRT for intermediate to high prostate cancer. Methods Relugolix was initiated at least 2 months prior to SBRT. Interventions to improve adherence were not utilized. PSA and total testosterone levels were obtained prior to and 1-4 months post SBRT. Profound castration was defined as serum testosterone ≤ 20 ng/dL. Early PSA nadir was defined as the lowest PSA value within 4 months of completion of SBRT. Per prior trials, we examined the percentage of patients who achieved PSA level of ≤ 0.5 ng/mL and ≤ 0.2 ng/mL during the first 4 months post SBRT. Results Between July 2021 and January 2023, 52 men were treated at Georgetown with relugolix (4-6 months) and SBRT (36.25-40 Gy in 5 fractions) per an institutional protocol (IRB 12-1775). Median age was 71 years. 26.9% of patients were African American and 28.8% were obese (BMI ≥30 kg/m2). The median pretreatment PSA was 9.1 ng/ml. 67% of patients were ≥ Grade Group 3. 44 patients were intermediate- and 8 were high-risk. Patients initiated relugolix at a median of 3.6 months prior to SBRT with a median duration of 6.2 total months. 92.3% of patients achieved profound castration during relugolix treatment. Poor drug adherence was observed in 2 patients. A third patient chose to discontinue relugolix due to side effects. By post-SBRT month 4, 87.2% and 74.4% of patients achieved PSA levels ≤ 0.5 ng/ml and ≤ 0.2 ng/ml, respectively. Discussion Relugolix combined with SBRT allows for high rates of profound castration with low early PSA nadirs. We observed a 96% testosterone suppresion rate without the utilization of scheduled cues/reminders. This finding supports the notion that patients with localized prostate cancer can consistently and successfully follow an oral ADT protocol without daily reminders. Given relugolix's potential benefits over injectable GnRH receptor agonists, its usage may be preferred in specific patient populations (fear of needles, prior cardiovascular events). Future studies should focus on boundaries to adherence in specific underserved populations.
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Affiliation(s)
- Lindsey Gallagher
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Jerry Xiao
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Jessica Hsueh
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Sarthak Shah
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Malika Danner
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Alan Zwart
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Marilyn Ayoob
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Thomas Yung
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Tiffany Simpson
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States
| | - Mark Fallick
- Medical Science Department, Myovant Sciences, Inc, United States
| | - Deepak Kumar
- Biotechnology Research Institute, North Carolina Central University, Durham, NC, United States
| | - Paul Leger
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States
| | - Nancy A. Dawson
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States
| | - Simeng Suy
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
| | - Sean P. Collins
- Department of Radiation Medicine, MedStar Georgetown University Hospital, Washington, DC, United States
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Saad F, George DJ, Cookson MS, Saltzstein DR, Tutrone R, Bossi A, Brown B, Selby B, Lu S, Tombal B, Shore ND. Relugolix vs. Leuprolide Effects on Castration Resistance-Free Survival from the Phase 3 HERO Study in Men with Advanced Prostate Cancer. Cancers (Basel) 2023; 15:4854. [PMID: 37835548 PMCID: PMC10571668 DOI: 10.3390/cancers15194854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/26/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
Background: Relugolix is an oral GnRH receptor antagonist approved for men with advanced prostate cancer. Relugolix treatment has demonstrated an ability to lower testosterone to sustained castration levels in the phase 4 HERO study. Herein, we describe the results of a secondary endpoint of castration resistance-free survival (CRFS) during 48 weeks of treatment and profile patients with castration-resistant prostate cancer (CRPC). Methods: Subjects were 2:1 randomized to either relugolix 120 mg orally once daily (after a single 360 mg loading dose) or 3-monthly injections of leuprolide for 48 weeks. CRFS, defined as the time from the date of first dose to the date of confirmed prostate-specific antigen progression while castrated or death due to any reason was conducted in the metastatic disease population and the overall modified intention-to-treat (mITT) populations. Results: The CRFS analysis (mITT population) included 1074 men (relugolix: n = 717; leuprolide: n = 357) with advanced prostate cancer as well as 434 men (relugolix: n = 290; leuprolide: n = 144) with metastatic prostate cancer. In the metastatic disease populations, CRFS rates were 74.3% (95% CI: 68.6%, 79.2%) and 75.3% (95% CI: 66.7%, 81.9%) in the relugolix and leuprolide groups, respectively (hazard ratio: 1.03 [0.68, 1.57]; p = 0.84) at week 48. Results in the overall mITT population were similar to the metastatic population. No new safety findings were identified. Conclusions: In men with metastatic disease or in the overall population of the HERO study, CRFS assessed during the 48-week treatment with relugolix was not significantly different than standard-of-care leuprolide. Relugolix had similar efficacy for men with/without CRFS progression events.
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Affiliation(s)
- Fred Saad
- University of Montreal Hospital Centre, Montreal, QC H2X 3E4, Canada
| | - Daniel J. George
- Duke Cancer Institute Center for Prostate and Urologic Cancers, Duke University, Durham, NC 27710, USA;
| | - Michael S. Cookson
- Department of Urology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA;
| | | | | | - Alberto Bossi
- Department of Radiation Oncology, Gustave Roussy Cancer Institute, 94805 Villejuif, France;
| | - Bruce Brown
- Myovant Sciences, Inc., Brisbane, CA 94005, USA; (B.B.); (B.S.)
| | - Bryan Selby
- Myovant Sciences, Inc., Brisbane, CA 94005, USA; (B.B.); (B.S.)
| | - Sophia Lu
- Myovant Sciences, Inc., Brisbane, CA 94005, USA; (B.B.); (B.S.)
| | - Bertrand Tombal
- Institut de Recherche Clinique, Université Catholique de Louvain, B-1348 Brussels, Belgium;
| | - Neal D. Shore
- Carolina Urologic Research Center, Myrtle Beach, SC 29572, USA;
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Tatenuma T, Miyamoto H. Profile of Relugolix in the Management of Advanced Hormone-Sensitive Prostate Cancer: Design, Development, and Place in Therapy. Drug Des Devel Ther 2023; 17:2325-2333. [PMID: 37559910 PMCID: PMC10408655 DOI: 10.2147/dddt.s373546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023] Open
Abstract
Androgen deprivation therapy, primarily via a gonadotropin-releasing hormone receptor agonist or antagonist together with or without an androgen receptor antagonist, remains the mainstay of medical treatment for advanced prostate cancer. Meanwhile, relugolix has been developed as the first orally active, non-peptide, selective antagonist for the gonadotropin-releasing hormone receptor. Previous randomized studies involving patients with prostate cancer have demonstrated comparable efficacy in androgen suppression between relugolix vs other gonadotropin-releasing hormone antagonists or agonists. This review summarizes available data on the design and development of relugolix and its therapeutic application, and discusses if relugolix represents a promising oral alternative to injectable androgen deprivation therapy. Based on current published evidence, further investigation is likely required to determine the actual clinical benefits of relugolix therapy against prostate cancer.
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Affiliation(s)
- Tomoyuki Tatenuma
- Department of Pathology & Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
- Department of Urology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiroshi Miyamoto
- Department of Pathology & Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
- Department of Urology, University of Rochester Medical Center, Rochester, NY, USA
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George DJ, Saad F, Cookson MS, Saltzstein DR, Tutrone R, Bossi A, Brown B, Selby B, Lu S, Buckley D, Tombal B, Shore ND. Impact of Concomitant Prostate Cancer Medications on Efficacy and Safety of Relugolix Versus Leuprolide in Men With Advanced Prostate Cancer. Clin Genitourin Cancer 2023; 21:383-392.e2. [PMID: 37062659 DOI: 10.1016/j.clgc.2023.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 04/08/2023]
Abstract
BACKGROUND To characterize the impact of concomitant prostate cancer treatments with the use of relugolix, the oral GnRH receptor antagonist, in advanced prostate cancer, a subgroup and pharmacokinetic/pharmacodynamic analyses of the HERO study was undertaken. PATIENTS AND METHODS Overall, 934 patients were randomized 2:1 to receive relugolix 120 mg orally once daily or leuprolide injections every 12 weeks for 48 weeks. In the setting of rising PSA, patients could receive enzalutamide or docetaxel 2 months after study initiation. Assessments included sustained testosterone suppression to castrate levels (<50 ng/dL) through 48 weeks and safety parameters. Subgroups analyzed included patients with or without concomitant enzalutamide or docetaxel. A sensitivity analysis of the primary endpoint was performed excluding patients who received concomitant therapies that may affect testosterone. Pharmacokinetic/pharmacodynamic analyses of 20 participants in the relugolix treatment group assessed the net effect of enzalutamide on exposure to relugolix. RESULTS Overall, 125 patients (13.4%) took concomitant therapies that could impact testosterone levels. Enzalutamide (n = 23) was the most frequently used therapy in the relugolix (2.7%) and leuprolide groups (1.9%). Docetaxel (n = 13) was used by 1.3% and 1.6% of patients in the relugolix and leuprolide groups, respectively. All other relevant concomitant therapy were used in <1% of population. Sensitivity analysis showed concomitant therapy did not impact the testosterone levels. Castration rates were similar with and without concomitant use of enzalutamide or docetaxel. No clinically relevant differences in adverse events were observed between subgroups in either treatment group. No differences in relugolix Ctrough or testosterone concentrations were observed, suggesting that any induction or inhibition properties of enzalutamide on relugolix metabolism result in a neutral net effect on relugolix exposure and testosterone suppression. CONCLUSION Treatment with relugolix was associated with similar efficacy and safety profiles with and without concomitant enzalutamide or docetaxel. Standard-of-care use of relugolix in combination with these agents is supported by these data.
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Affiliation(s)
- Daniel J George
- Duke Cancer Institute Center for Prostate and Urologic Cancers, Duke University, Durham, NC
| | - Fred Saad
- University of Montreal Hospital Centre, Montreal, QC, Canada
| | - Michael S Cookson
- Department of Urology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | | | | | - Alberto Bossi
- Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France
| | | | | | | | | | - Bertrand Tombal
- Institut de Recherche Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - Neal D Shore
- Carolina Urologic Research Center, Myrtle Beach, SC
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11
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Casati L, Ciceri S, Maggi R, Bottai D. Physiological and Pharmacological overview of the Gonadotropin Releasing Hormone. Biochem Pharmacol 2023; 212:115553. [PMID: 37075816 DOI: 10.1016/j.bcp.2023.115553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/07/2023] [Accepted: 04/10/2023] [Indexed: 04/21/2023]
Abstract
Gonadotropin-releasing Hormone (GnRH) is a decapeptide responsible for the control of the reproductive functions. It shows C- and N-terminal aminoacid modifications and two other distinct isoforms have been so far identified. The biological effects of GnRH are mediated by binding to high-affinity G-protein couple receptors (GnRHR), showing characteristic very short C tail. In mammals, including humans, GnRH-producing neurons originate in the embryonic nasal compartment and during early embryogenesis they undergo rapid migration towards the hypothalamus; the increasing knowledge of such mechanisms improved diagnostic and therapeutic approaches to infertility. The pharmacological use of GnRH, or its synthetic peptide and non-peptide agonists or antagonists, provides a valid tool for reproductive disorders and assisted reproduction technology (ART). The presence of GnRHR in several organs and tissues indicates additional functions of the peptide. The identification of a GnRH/GnRHR system in the human endometrium, ovary, and prostate has extended the functions of the peptide to the physiology and tumor transformation of such tissues. Likely, the activity of a GnRH/GnRHR system at the level of the hippocampus, as well as its decreased expression in mice brain aging, raised interest in its possible involvement in neurogenesis and neuronal functions. In conclusion, GnRH/GnRHR appears to be a fascinating biological system that exerts several possibly integrated pleiotropic actions in the complex control of reproductive functions, tumor growth, neurogenesis, and neuroprotection. This review aims to provide an overview of the physiology of GnRH and the pharmacological applications of its synthetic analogs in the management of reproductive and non-reproductive diseases.
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Affiliation(s)
- Lavinia Casati
- Department of Health Sciences, Università degli Studi di Milano, Milano, Italy
| | - Samuele Ciceri
- Dept. of Pharmaceutical Sciences (DISFARM), Università degli Studi di Milano, Milano Italy
| | - Roberto Maggi
- Dept. of Pharmaceutical Sciences (DISFARM), Università degli Studi di Milano, Milano Italy.
| | - Daniele Bottai
- Dept. of Pharmaceutical Sciences (DISFARM), Università degli Studi di Milano, Milano Italy
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12
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De La Cerda J, Dunshee C, Gervasi L, Sieber P, Belkoff L, Tutrone R, Lu S, Gatoulis SC, Brown B, Migoya E, Shore N. A Phase I Clinical Trial Evaluating the Safety and Dosing of Relugolix with Novel Hormonal Therapy for the Treatment of Advanced Prostate Cancer. Target Oncol 2023; 18:383-390. [PMID: 37060432 DOI: 10.1007/s11523-023-00967-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2023] [Indexed: 04/16/2023]
Abstract
BACKGROUND Androgen deprivation therapy (ADT), a cornerstone of prostate cancer treatment, is commonly co-prescribed as combination therapy. OBJECTIVE To better understand the safety and tolerability profile of relugolix, an oral non-peptide gonadotropin-releasing hormone (GnRH) receptor antagonist, in combination with abiraterone acetate (abiraterone) and apalutamide, a phase I study was undertaken. PATIENTS AND METHODS This is an ongoing, 52-week, open-label, parallel cohort study of relugolix in combination with abiraterone in men with metastatic castration-sensitive prostate cancer (mCSPC) or metastatic castration-resistant prostate cancer (mCRPC) [Part 1] and apalutamide in men with mCSPC or non-metastatic castration-resistant prostate cancer (nmCRPC) [Part 2]. Eligible patients treated with leuprolide acetate or degarelix with abiraterone or apalutamide prior to baseline, at which time they were transitioned to relugolix. Assessments included reporting of adverse events, clinical laboratory tests, vital sign measurements, electrocardiogram (ECG) parameters, and testosterone serum concentrations. In this interim report, patients completing ≥12 weeks were included. RESULTS Overall, 15 men were enrolled in Part 1 and 10 in Part 2. Adverse events were mostly mild-to-moderate in intensity and were consistent with the known safety profiles of the individual medications. No transition (from prior ADT treatment)- or time-related trends in clinical laboratory tests, vital sign measurements, or ECG parameters were observed. Mean testosterone concentrations remained below castration levels. CONCLUSIONS Combination therapy of relugolix and abiraterone or apalutamide was associated with a favorable safety and tolerability profile consistent with the known profiles of the individual medications. Castration levels of testosterone were maintained after transitioning to relugolix from other ADTs. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT04666129.
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Affiliation(s)
- Jose De La Cerda
- Urology San Antonio, 3327 Research Plaza Suite 403, San Antonio, TX, 78235, USA.
| | | | | | - Paul Sieber
- Urological Associates of Lancaster, Lancaster, PA, USA
| | - Laurence Belkoff
- Division of Urology, MidLantic Urology/Main Line Health, Bala Cynwyd, PA, USA
| | | | - Sophia Lu
- Myovant Sciences, Inc., Brisbane, CA, USA
| | | | | | | | - Neal Shore
- Carolina Urologic Research Center, Myrtle Beach, SC, USA
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13
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Li X, Sun F, Zhang X, Lin P, Shen K, Shen Y, Ma L, Cao Y, Wang C. Safety, pharmacokinetics, and pharmacodynamics of SHR7280, an oral gonadotropin-releasing hormone receptor antagonist, in healthy men: a randomized, double-blind, placebo-controlled phase 1 study. BMC Med 2023; 21:129. [PMID: 37013610 PMCID: PMC10071678 DOI: 10.1186/s12916-023-02834-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 03/13/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Gonadotropin-releasing hormone (GnRH) antagonists are a promising therapeutic approach for treating hormone-dependent prostate cancer. Currently, the mainstream GnRH antagonists are polypeptide agents administered through subcutaneous injection. In this study, we evaluated the safety, pharmacokinetics (PK), and pharmacodynamics (PD) of SHR7280, an oral small molecule GnRH antagonist, in healthy men. METHODS This phase 1 trial was a randomized, double-blind, placebo-controlled, and dose-ascending study. Eligible healthy men were randomized in a 4:1 ratio to receive either oral SHR7280 tablets or placebo twice daily (BID) for 14 consecutive days. The SHR7280 dose was initiated at 100 mg BID and then sequentially increased to 200, 350, 500, 600, 800, and 1000 mg BID. Safety, PK, and PD parameters were assessed. RESULTS A total of 70 subjects were enrolled and received the assigned drug, including 56 with SHR7280 and 14 with placebo. SHR7280 was well-tolerated. The incidence of adverse events (AEs, 76.8% vs 85.7%) and treatment-related AEs (75.0% vs 85.7%), as well as the severity of AEs (moderate AEs, 1.8% vs 7.1%) were similar between the SHR7280 group and placebo group. SHR7280 was rapidly absorbed in a dose-dependent manner, with a median Tmax of each dose group ranging from 0.8 to 1.0 h on day 14 and a mean t1/2 ranging from 2.8 to 3.4 h. The PD results demonstrated that SHR7280 exhibited a rapid and dose-proportional suppression of hormones, including LH, FSH, and testosterone, with maximum suppression achieved at doses of 800 and 1000 mg BID. CONCLUSIONS SHR7280 showed an acceptable safety profile, as well as favorable PK and PD profiles within a dose range of 100 to 1000 mg BID. This study proposes a rationale for further investigation of SHR7280 as a potential androgen deprivation therapy. TRIAL REGISTRATION Clinical trials.gov NCT04554043; registered September 18, 2020.
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Affiliation(s)
- Xin Li
- Phase I Clinical Research Center, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
| | - Feifei Sun
- Phase I Clinical Research Center, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
| | - Xiaolei Zhang
- Phase I Clinical Research Center, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
| | - Pingping Lin
- Phase I Clinical Research Center, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
| | - Kai Shen
- Jiangsu Hengrui Pharmaceuticals Co., Ltd, Shanghai, China
| | - Yu Shen
- Jiangsu Hengrui Pharmaceuticals Co., Ltd, Shanghai, China
| | - Lingyu Ma
- Jiangsu Hengrui Pharmaceuticals Co., Ltd, Shanghai, China
| | - Yu Cao
- Phase I Clinical Research Center, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China.
| | - Chenjing Wang
- Phase I Clinical Research Center, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China.
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Shirley M. Relugolix: A Review in Advanced Prostate Cancer. Target Oncol 2023; 18:295-302. [PMID: 36652173 DOI: 10.1007/s11523-022-00944-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2022] [Indexed: 01/19/2023]
Abstract
Relugolix (Orgovyx®), an orally active nonpeptide gonadotropin-releasing hormone (GnRH) receptor antagonist that provides rapid testosterone suppression, is indicated in the USA for the treatment of advanced prostate cancer and in the EU for advanced hormone-sensitive prostate cancer. In the pivotal phase III HERO trial in men with advanced prostate cancer, once-daily oral relugolix (with a loading dose on day 1) led to a sustained castration rate over 48 weeks of treatment of > 90%, a rate that was non-inferior to that provided by intramuscular leuprolide depot every 3 months (with an exploratory analysis further indicating the superiority of relugolix over leuprolide). Relugolix was generally well tolerated, having an adverse event profile that is consistent with testosterone suppression. Furthermore, there is evidence that relugolix may be associated with a lower risk of major adverse cardiac events compared with leuprolide. With the ability to provide the rapid testosterone suppression (with no initial surge in testosterone upon treatment initiation) combined with the benefits of oral administration and potentially improved cardiac safety, relugolix presents a valuable treatment option for men with advanced prostate cancer where androgen deprivation therapy is indicated.
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Affiliation(s)
- Matt Shirley
- Springer Nature, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand.
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15
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Coadministration of Apalutamide and Relugolix in Patients with Localized Prostate Cancer at High Risk for Metastases. Target Oncol 2023; 18:95-103. [PMID: 36472728 PMCID: PMC9928932 DOI: 10.1007/s11523-022-00932-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND The single-arm, open-label, multicenter, phase II Apa-RP study evaluates the biochemical recurrence (confirmed prostate-specific antigen [PSA] > 0.2 ng/mL)-free rate in patients with high-risk localized prostate cancer (HR-LPC) after radical prostatectomy following adjuvant apalutamide and androgen-deprivation therapy. In this substudy, relugolix, an oral gonadotropin-releasing hormone antagonist, was evaluated in combination with apalutamide. OBJECTIVE The aim of this study was to evaluate whether the approved standard maintenance dose of relugolix in combination with apalutamide sustains castrate testosterone levels (< 50 ng/dL). PATIENTS AND METHODS Twelve patients with HR-LPC who met all the main study criteria were included in the substudy. Patients received relugolix monotherapy for 2 weeks (loading dose [360 mg] at Day - 14 then 120 mg/day daily until Day - 1), then daily relugolix (120 mg) with apalutamide (240 mg) from Day 1 to Day 28. Endpoints were rate of maintained castration (testosterone < 50 ng/dL) through Day 28 (primary) and safety (secondary). RESULTS All 12 patients received relugolix and apalutamide and achieved castrate testosterone levels after 2-week relugolix monotherapy (median testosterone 348.5 ng/dL and 8.7 ng/dL at Days - 14 and - 1). All 11 patients who had testosterone measured at Day 28 maintained castrate testosterone (median 10.0 ng/dL) without relugolix dose adjustment. Treatment-emergent adverse events (TEAEs) occurred in nine patients during relugolix monotherapy and in eight patients during relugolix + apalutamide coadministration. Hot flush was the most common TEAE reported, in six and four patients, respectively. CONCLUSIONS Relugolix administered at approved standard doses concurrently with apalutamide was effective in maintaining castrate testosterone levels in HR-LPC without new safety signals. TRIAL REGISTRATION NUMBER AND DATE NCT04523207, 21 August 2020.
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16
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Evangelisti G, Barra F, Perrone U, Di Donato N, Bogliolo S, Ceccaroni M, Ferrero S. Comparing the pharmacokinetic and pharmacodynamic qualities of current and future therapies for uterine fibroids. Expert Opin Drug Metab Toxicol 2022; 18:441-457. [DOI: 10.1080/17425255.2022.2113381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Giulio Evangelisti
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Fabio Barra
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Southern Endometriosis Centre, Queen Alexandra Hospital, Portsmouth, UK
- Department of Obstetrics and Gynecology, Gynecology Oncology and Minimally-Invasive Pelvic Surgery, International School of Surgical Anatomy (ISSA), IRCCS Ospedale Sacro Cuore - Don Calabria, Via Don A. Sempreboni, 5, 37024, Negrar (Verona), Italy
| | - Umberto Perrone
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Nadine Di Donato
- Southern Endometriosis Centre, Queen Alexandra Hospital, Portsmouth, UK
| | - Stefano Bogliolo
- Department of Obstetrics and Gynecology, “P.O del Tigullio” Hospital-ASL4, Metropolitan Area of Genoa, Genoa, Italy
| | - Marcello Ceccaroni
- Department of Obstetrics and Gynecology, Gynecology Oncology and Minimally-Invasive Pelvic Surgery, International School of Surgical Anatomy (ISSA), IRCCS Ospedale Sacro Cuore - Don Calabria, Via Don A. Sempreboni, 5, 37024, Negrar (Verona), Italy
| | - Simone Ferrero
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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17
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Wright D, Britten J, Malik M, Catherino WH. Relugolix and elagolix directly inhibit leiomyoma extracellular matrix production in 2-dimesnional and 3-dimensional cell cultures. F&S SCIENCE 2022; 3:299-308. [PMID: 35977805 DOI: 10.1016/j.xfss.2022.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To determine the effect relugolix and elagolix have on the production of extracellular matrix (ECM) proteins in human leiomyoma cells. DESIGN Laboratory study. SETTING University hospital. PATIENT(S) OR ANIMALS None. January 5, 2022 Cell culture, protein analysis, immunohistochemistry. MAIN OUTCOME MEASURE(S) Production of GnRHR, COL1A1, FN1, VCAN, p-ERK, & ERK in treated/untreated leiomyoma cells. RESULTS 100 nM relugolix resulted in decreased production of COL1A1 at 24 (1.78 0.06-fold; P < .05) and 48 hours (1.92 0.14-fold; P < .05). Elagolix treatment resulted in a decrease in COL1A1 production at 24 but not 48 hours. In 2D and 3D, 100 nM relugolix resulted in decreased production of FN1 at 24 (1.7 ± 0.07-fold; P < .05) and 48 hours (1.8 ± 0.07-fold; P < .05); 100 nM elagolix resulted in decreased production of FN1 at 24 (1.7 ± 0.14-fold; P < .05) and 48 hours (2.0 ± 0.09-fold; P < .05). For cells treated with relugolix 100 nM resulted in decreased VCAN production by 48 hours (0.66 ± 0.07-fold; P < .05). Contrary to our 3D data, 2D elagolix-treated cells demonstrated a decrease in VCAN production that was identified only at 24 hours. For GnRHR, no significant difference between the drugs was seen at 24 hours; at 48 hours production was only significantly decreased for relugolix (P < .05). Comparing both drugs, there was a significant difference in the concentration of p-ERK to ERK at 24 hours (P < .05); there was no difference by 48 hours. CONCLUSIONS Our findings demonstrated that treatment with either drug can 1) decrease ECM protein production and 2) inhibit the MAPK pathway.
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Affiliation(s)
- Danielle Wright
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Joy Britten
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Minnie Malik
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - William H Catherino
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
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Sahu KK, Tripathi N, Agarwal N, Swami U. Relugolix in the management of prostate cancer. Expert Rev Anticancer Ther 2022; 22:891-902. [PMID: 35866612 DOI: 10.1080/14737140.2022.2105209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Relugolix is the first oral gonadotrophin-releasing hormone (GnRH) receptor antagonist. Based on the phase III HERO trial results, relugolix received Food and Drug Administration approval for adult patients with advanced prostate cancer (PCa). AREAS COVERED : We provide an overview of the preclinical and clinical development of relugolix and its role in the current treatment landscape of PCa. EXPERT OPINION Relugolix leads to rapid inhibition of testicular production of testosterone and its rapid recovery upon discontinuation. In the HERO trial, relugolix was associated with a superior cardiovascular safety profile compared to GnRH agonists. These attributes make relugolix a promising therapy for patients with pre-existing cardiovascular co-morbidities, those pursuing intermittent androgen deprivation therapy, and those who desire rapid testosterone recovery during "off-treatment" periods. In the HERO trial, very few patients received concomitant enzalutamide (n=17, 2.7%) or docetaxel (n<10, 1.3%). Safety of relugolix has not been established in combination with many androgen-receptor-axis targeted therapies (e.g. abiraterone, apalutamide), cabazitaxel, or lutetium Lu 177 vipivotide tetraxetan, which precludes its use in combination with these agents. In addition, being an oral drug, relugolix may also be associated with challenges of affordability, adherence, and compliance in this predominantly elderly population.
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Affiliation(s)
- Kamal Kant Sahu
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Nishita Tripathi
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Neeraj Agarwal
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Umang Swami
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah 84112, United States
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Wright D, Kim JW, Lindsay H, Catherino WH. A Review of GnRH Antagonists as Treatment for Abnormal Uterine Bleeding-Leiomyoma (AUB-L) and Their Influence on the Readiness of Service Members. Mil Med 2022; 188:usac078. [PMID: 35348746 DOI: 10.1093/milmed/usac078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/17/2022] [Accepted: 03/15/2022] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Not too long ago, Lupron Depot® (leuprolide acetate), an injectable gonadotropin-releasing hormone (GnRH) agonist, was the only Food and Drug Administration (FDA) approved GnRH analog used to clinically treat abnormal uterine bleeding associated with uterine leiomyoma (AUB-L) when second-line medical management was warranted; however, the FDA has now approved elagolix and relugolix, GnRH antagonists, to be treatment options as well. This is a review of GnRH antagonists for the management of uterine fibroids reviewing their treatment efficacy, side effect profile, and current use in military medicine. METHODS This is a review of studies from multiple electronic databases (Pubmed, ACOG, FDA, U.S. Military Guidelines) published between 1990 and 2021. Keywords used for the search include GnRH antagonist, elagolix, relugolix, uterine leiomyoma, and abnormal uterine bleeding. Our inclusion criteria for articles reviewed were: systematic reviews with the listed keywords, multicenter randomized trials, and meta-analyses. The DODI on Medical Standards for Medical Service, Air Force Aerospace Medicine Waiver Guide, Navy Guidance Aeromedical Reference and Waiver Guide, and the Army Regulation 40-501 Standards of Medical Fitness were used to review the military standards and current restrictions placed on service members. RESULTS Thirty-three articles were reviewed and summarized. CONCLUSION Uterine leiomyoma can impact service members' eligibility and fitness for duty. The oral administration of elagolix and relugolix adds convenience to this drug class through its oral administration while lengthening the duration of treatment up to 24 months. All military medical facilities should advocate for the well-being of their service members by stocking all options available. Health care providers should collaborate with patients in making the best therapy choice that is suited for their lifestyle and military occupation.
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Affiliation(s)
- Danielle Wright
- Gynecologic Surgery and Obstetrics, Uniformed Services University of Health Sciences, Bethesda, MD 20814, USA
| | - Ji Won Kim
- Gynecologic Surgery and Obstetrics, Uniformed Services University of Health Sciences, Bethesda, MD 20814, USA
| | - Halle Lindsay
- Gynecologic Surgery and Obstetrics, Uniformed Services University of Health Sciences, Bethesda, MD 20814, USA
| | - William H Catherino
- Gynecologic Surgery and Obstetrics, Uniformed Services University of Health Sciences, Bethesda, MD 20814, USA
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20
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Ali M, Chen HY, Chiang YF, Badary OA, Hsia SM, Al-Hendy A. An evaluation of relugolix/estradiol/norethindrone acetate for the treatment of heavy menstrual bleeding associated with uterine fibroids in premenopausal women. Expert Opin Pharmacother 2022; 23:421-429. [PMID: 35068291 PMCID: PMC8866208 DOI: 10.1080/14656566.2022.2030705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Uterine Fibroids (UFs) are the most predominant benign tumor in women who are coming of reproductive age, and causes intense economic load priced in billions of US dollars. Historically, surgery has been the main definitive treatment, albeit less attractive nowadays, especially for women with future fertility plans. Therefore, studies to explore the pharmacological treatment options are increasing especially as those that are currently available are limited for short-term use only. AREAS COVERED This drug evaluation features the clinical results from previous and ongoing studies of relugolix, in combination with the add back therapy of estradiol (E2) and norethindrone acetate (NETA), as a novel, orally administered, nonpeptide antagonist of gonadotropin-releasing hormone (GnRH) for the management of heavy menstrual bleeding (HMB) in premenopausal women with UFs. EXPERT OPINION The combination of relugolix/E2/NETA is an encouraging, well-tolerated and noninvasive pharmacological option for UFs patients. Relugolix induced a concentration-dependent decrease in HMB. However, it should be used with hormonal add-back therapy (E2+ NETA) to avoid induced hypoestrogenic side effects, importantly bone mineral density loss. Moreover, symptoms will likely resume shortly after the termination of the relugolix combination administration.
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Affiliation(s)
- Mohamed Ali
- Clinical Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.,Center of Drug Discovery Research and Development, Ain Shams University, Cairo, Egypt
| | - Hsin-Yuan Chen
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan
| | - Yi-Fen Chiang
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan
| | - Osama A Badary
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Shih-Min Hsia
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan.,Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan.,School of Food and Safety, Taipei Medical University, Taipei 11031, Taiwan.,Nutrition Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Ayman Al-Hendy
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL, USA
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Komiya S, Tsuzuki‐Nakao T, Asai Y, Inoue T, Morimoto Y, Okada H. The novel oral gonadotropin‐releasing hormone receptor antagonist relugolix is a new option for controlled ovarian stimulation cycles. Reprod Med Biol 2022; 21:e12448. [PMID: 35386367 PMCID: PMC8967300 DOI: 10.1002/rmb2.12448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/28/2022] [Accepted: 02/01/2022] [Indexed: 11/17/2022] Open
Abstract
Purpose Relugolix is an oral gonadotropin‐releasing hormone antagonist (GnRHant), which was first introduced in 2019. This study investigated the effects of the conventional injectable GnRHant formulation and this new oral GnRHant formulation on controlled ovarian stimulation (COS) cycles. Methods Relugolix was administered in 126 cycles and conventional GnRHant injection was administered in 658 cycles (controls). The follicle stimulation was performed by an antagonist method, and for final oocyte maturation, recombinant human chorionic gonadotropin (rHCG), or gonadotropin‐releasing hormone agonist (GnRHa), or both (dual trigger) were selected. The number of retrieved oocytes was counted and then they were evaluated for subsequent development up to cleavage stage. Results The number of retrieved oocytes which was the primary outcome of this research was affected by the combination of GnRHant type and the final oocyte maturation agent. The combination of relugolix and a GnRHa trigger showed a significantly lower number of retrieved oocytes (p < 0.001) than the other combinations. Conclusions Relugolix is a new option for COS cycles, but should be carefully combined with the final maturation agent. Clinical trial approval This study was conducted after approval by the Medical Corporation Sankeikai Institutional Ethics Committee (approval number: 2019‐34).
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Affiliation(s)
- Shinnosuke Komiya
- Department of Obstetrics and Gynecology Kansai Medical University Graduate School of Medicine Osaka Japan
- HORAC Grand Front Osaka Clinic Osaka Japan
| | - Tomoko Tsuzuki‐Nakao
- Department of Obstetrics and Gynecology Kansai Medical University Graduate School of Medicine Osaka Japan
| | | | | | | | - Hidetaka Okada
- Department of Obstetrics and Gynecology Kansai Medical University Graduate School of Medicine Osaka Japan
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22
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Yu EM, Aragon-Ching JB. Advances with androgen deprivation therapy for prostate cancer. Expert Opin Pharmacother 2022; 23:1015-1033. [PMID: 35108137 DOI: 10.1080/14656566.2022.2033210] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Androgen deprivation therapy (ADT) has been a treatment of choice for prostate cancer in almost all phases, particularly in the locally advanced, metastatic setting in both hormone-sensitive and castration-resistant diseaseand in those who are unfit for any local therapy. Different ways of administering ADT comes in the form of surgical or chemical castration with the use of gonadotropin-releasing hormone (GnRH-agonists) being the foremost way of delivering ADT. AREAS COVERED This review encompasses ADT history, use of leuprolide, degarelix, and relugolix, with contextual use of ADT in combination with androgen-signaling inhibitors and potential mechanisms of resistance. Novel approaches with regard to hormone therapy are also discussed. EXPERT OPINION The use of GnRH-agonists and GnRH-antagonists yields efficacy that is likely equivalent in resulting in testosterone suppression. While the side-effect profile with ADT are generally equivalent, effects on cardiovascular morbidity may be improved with the use of oral relugolix though this is noted with caution since the cardiovascular side-effects were a result of secondary subgroup analyses. The choice of ADT hinges upon cost, availability, ease of administration, and preference amongst physicians and patients alike.
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Affiliation(s)
- Eun-Mi Yu
- GU Medical Oncology, Inova Schar Cancer Institute, Fairfax, VA, USA
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23
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Hamada M, Horikawa M, Ensaka C, Enomoto M, Ishii R, Toriumi R, Tachibana N, Taketani Y. A novel orally active gonadotropin-releasing hormone antagonist, relugolix, is a potential substitute for injectable GnRH antagonists in controlled ovarian stimulation in assisted reproductive technology. Reprod Med Biol 2021; 21:e12424. [PMID: 34938148 PMCID: PMC8658872 DOI: 10.1002/rmb2.12424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/17/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Purpose To evaluate the efficacy of an oral gonadotropin‐releasing hormone antagonist (GnRH Ant), relugolix (R), for assisted reproductive technology (ART). Methods We enrolled women undergoing ART using a GnRH Ant for controlled ovarian stimulation. We compared R; 20 mg/day with cetrorelix acetate (C); 0.125 mg. C was administered to 88 women in 2019, and R to 93 women in 2020. Clinical outcomes associated with ART were assessed in both groups. Results The luteinizing hormone levels on the day of human chorionic gonadotropin injection in the R group (1.26 ± 0.93 IU/L) were significantly lower than those in the C group (2.85 ± 3.02 IU/L). There were no cases in which egg retrieval was canceled in both groups. The total doses of gonadotropins administered were greater in the R group compared with the C group. The number of days of GnRH Ant administration in the R group (1.71 ± 0.57 days) was significantly longer compared with the C group (1.48 ± 0.58 days). The number of oocytes collected, fertilization rates, and pregnancy rates (R; 47.1% vs C; 45.8%) did not differ between the two groups. Conclusion An orally active GnRH Ant, relugolix, when used in controlled ovarian stimulation for ART, showed comparable clinical outcomes with cetrorelix.
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Affiliation(s)
- Michiko Hamada
- Women's Clinic Oizumigakuen Lenia Medical Corporation Tokyo Japan
| | - Michiharu Horikawa
- Women's Clinic Oizumigakuen Lenia Medical Corporation Tokyo Japan.,Artemis Women's Hospital Lenia Medical Corporation Tokyo Japan
| | - Chie Ensaka
- Women's Clinic Oizumigakuen Lenia Medical Corporation Tokyo Japan
| | - Megumi Enomoto
- Women's Clinic Oizumigakuen Lenia Medical Corporation Tokyo Japan
| | - Rena Ishii
- Women's Clinic Oizumigakuen Lenia Medical Corporation Tokyo Japan
| | - Rena Toriumi
- Women's Clinic Oizumigakuen Lenia Medical Corporation Tokyo Japan
| | | | - Yuji Taketani
- Women's Clinic Oizumigakuen Lenia Medical Corporation Tokyo Japan.,Artemis Women's Hospital Lenia Medical Corporation Tokyo Japan
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24
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Nakao K, Kuroda K, Horikawa T, Moriyama A, Juen H, Itakura A, Watanabe H, Takamizawa S, Ojiro Y, Nakagawa K, Sugiyama R. Therapeutic effects of an oral gonadotropin-releasing hormone receptor antagonist, relugolix, on preventing premature ovulation in mild ovarian stimulation for IVF. Reprod Med Biol 2021; 21:e12422. [PMID: 34938146 PMCID: PMC8656665 DOI: 10.1002/rmb2.12422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/26/2021] [Accepted: 10/07/2021] [Indexed: 01/23/2023] Open
Abstract
Purpose Can relugolix, a novel oral gonadotropin-releasing hormone receptor (GnRH) antagonist, function as an alternative ovulation inhibitor to GnRH antagonist injections? Methods This single-center, cross-sectional retrospective study compared premature ovulation rates and clinical outcomes in IVF treatment after mild ovarian stimulation with 40 mg of relugolix (relugolix group) or 0.25-mg injections of ganirelix acetate or cetrorelix acetate (injection group) between March 2019 and January 2020. Of 247 infertile women (256 IVF cycles) aged ≤42 years, 223 women (230 cycles) were evaluated. In the relugolix and injection groups, we compared 104 and 85 cycles after GnRH antagonist use before the LH surge (LH levels <10 mIU/ml) and 22 and 19 cycles during the LH surge (LH levels ≥10 mIU/ml), respectively. Results Before the LH surge, the ovulation rates in the two groups were very low (p = 0.838), however; during the LH surge, the cycles using relugolix had a high ovulation rate of 40.9% compared with no ovulation in the injection group (p = 0.002). There were no significant differences in embryo culture findings and pregnancy outcomes between the two groups. Conclusions Although relugolix had a high ovulation suppressive effect, when the LH surge occurred, its effect was insufficient.
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Affiliation(s)
- Kazuki Nakao
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Keiji Kuroda
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan.,Department of Obstetrics and Gynecology Faculty of Medicine Juntendo University Tokyo Japan
| | - Takashi Horikawa
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Azusa Moriyama
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Hiroyasu Juen
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Akiko Itakura
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Hideaki Watanabe
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Satoru Takamizawa
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Yuko Ojiro
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Koji Nakagawa
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
| | - Rikikazu Sugiyama
- Center for Reproductive Medicine and Implantation Research Sugiyama Clinic Shinjuku Tokyo Japan
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25
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An Expert Review on the Combination of Relugolix with Definitive Radiation Therapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2021; 113:278-289. [PMID: 34923058 DOI: 10.1016/j.ijrobp.2021.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/05/2021] [Accepted: 12/06/2021] [Indexed: 11/20/2022]
Abstract
Androgen deprivation therapy (ADT) is an integral component in the management of prostate cancer across multiple disease states. Traditionally, luteinizing hormone-releasing hormone (LHRH) agonists constituted the backbone of ADT. However, gonadotropin-releasing hormone receptor hormone (GnRH) antagonists are also available, which offer faster testosterone suppression and reduced likelihood of ADT-related adverse effects compared to LHRH agonists, including the potential for fewer ADT-associated major cardiac events. Until recently, all forms of LHRH agonists and GnRH antagonist formulations are of parenteral administration. However, recently relugolix gained FDA approval as the first oral GnRH antagonist. Relugolix achieves faster and more complete testosterone suppression compared to an LHRH agonist. This translates to more rapid prostate-specific antigen response compared to LHRH agonists. After discontinuation of relugolix, testosterone recovers faster than after GnRH agonists or injectable GnRH antagonist therapy. Overall, these factors provide opportunities for more precisely defined ADT duration when combined with radiation therapy. The rapid onset and offset testosterone suppression with relugolix, however, may require physicians to rethink the mechanism and goals of ADT when prescribing. As an oral formulation, relugolix enables patients to avoid pain and injection site reactions, limit extra office visits for injections, and achieve a shorter duration of experiencing the side effects of castrate testosterone levels. This convenience and tolerability may enhance physicians' willingness to prescribe ADT and patients' feeling of control over their ADT course, but the potential advantages are accompanied by the risks of patients choosing to discontinue therapy to escape side effects of ADT. This article focuses on different aspects of what is known and unknown regarding the optimal use of ADT and radiation therapy, and how relugolix, due to its properties, fit into our current treatment paradigms for localized prostate cancer.
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26
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Fragkoulis C, Glykas I, Dellis A, Mitsogiannis I, Papatsoris A. Relugolix: A new kid on the block among gonadotrophin-releasing hormone antagonists. Arab J Urol 2021; 19:460-463. [PMID: 34881062 PMCID: PMC8648026 DOI: 10.1080/2090598x.2021.1994231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Androgen-deprivation therapy (ADT) is the cornerstone of metastatic prostate cancer treatment. ADT can be achieved through surgical castration, or it may be induced either by gonadotrophin-releasing hormone (GnRH) agonists or GnRH antagonists. GnRH antagonists provide a more rapid castration alongside with a safer profile regarding adverse events. Degarelix is the sole GnRH antagonist used in clinical practice. Injection site reactions are the commonest adverse events related to the use of degarelix. Relugolix, a novel molecule, represents the first orally administered United States Food and Drug Administration approved GnRH antagonist, with clinical efficacy equal to that of the established ADT regimens. The main advantages of relugolix are the avoidance of the injection site reactions of GnRH antagonists such as degarelix alongside its patient-friendly oral administration. The aim of the present review article is to present novel data regarding the role of relugolix as ADT for the treatment of prostate cancer. Abbreviations: ADT: androgen-deprivation therapy; FDA: United States Food and Drug Administration
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Affiliation(s)
- Charalampos Fragkoulis
- Department of Urology, General Hospital of Athens 'G. Gennimatas', Mesogeion Avenue 154, Athens, P.C, 115 27, Greece
| | - Ioannis Glykas
- Department of Urology, General Hospital of Athens 'G. Gennimatas', Mesogeion Avenue 154, Athens, P.C, 115 27, Greece
| | - Athanasios Dellis
- Second Department of Surgery, Aretaieion Hospital,School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Iraklis Mitsogiannis
- Second Department of Urology, Sismanoglio Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Athanasios Papatsoris
- Second Department of Urology, Sismanoglio Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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27
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Kotlyar AM, Pal L, Taylor HS. Eliminating Hormones With Orally Active Gonadotropin-releasing Hormone Antagonists. Clin Obstet Gynecol 2021; 64:837-849. [PMID: 34668887 DOI: 10.1097/grf.0000000000000664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Gonadotropin-releasing hormone (GnRH) analogues have been used in clinical practice for nearly 3 decades. Beginning with GnRH agonists, these agents have been used to treat hormone-dependent disease and to suppress gonadotropin production in assisted reproductive technologies. With the development of GnRH antagonists and especially small-molecule antagonists, our ability to achieve gonadotropin and sex steroid suppression has become increasingly effective and convenient. In this review, we will briefly describe the development of GnRH analogues, review the evolution of orally active small-molecule GnRH antagonists and provide an overview of the expanding role of small-molecule GnRH antagonists in clinical practice.
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Affiliation(s)
- Alexander M Kotlyar
- Section of Reproductive Endocrinology and Infertility, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, Yale University, New Haven, Connecticut
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28
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George DJ, Dearnaley DP. Relugolix, an oral gonadotropin-releasing hormone antagonist for the treatment of prostate cancer. Future Oncol 2021; 17:4431-4446. [PMID: 34409852 DOI: 10.2217/fon-2021-0575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Androgen deprivation therapy using gonadotropin-releasing hormone (GnRH) analogues is standard treatment for intermediate and advanced prostate cancer. GnRH agonist therapy results in an initial testosterone flare, and increased metabolic and cardiovascular risks. The GnRH antagonist relugolix is able to reduce serum testosterone levels in men with prostate cancer without inducing testosterone flare. In the HERO Phase III trial, relugolix was superior to leuprolide acetate at rapidly reducing testosterone and continuously suppressing testosterone, with faster post-treatment recovery of testosterone levels. Relugolix was associated with a 54% lower incidence of major adverse cardiovascular events than leuprolide acetate. As the first oral GnRH antagonist approved for the treatment of advanced prostate cancer, relugolix offers a new treatment option.
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Affiliation(s)
- Daniel J George
- Department of Medicine & Surgery, Duke Cancer Institute, Duke University, Durham, NC 27710, USA
| | - David P Dearnaley
- The Institute of Cancer Research & Royal Marsden NHS Foundation Trust, London, UK
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29
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Cristina Mendonça Nogueira T, Vinicius Nora de Souza M. New FDA oncology small molecule drugs approvals in 2020: Mechanism of action and clinical applications. Bioorg Med Chem 2021; 46:116340. [PMID: 34416511 DOI: 10.1016/j.bmc.2021.116340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 12/30/2022]
Abstract
In 2020, fifty-three new drugs, including forty small-molecules (thirty-six new chemical entities and four new diagnostic agents) and thirteen biologic drugs were approved by the U.S. Food and Drug Administration (FDA). This year, small-molecules continue to play a role in innovative treatments representing around 75% of all drugs accepted by FDA. The dominant therapeutic area was oncology, accounting for twenty-three new approvals, including thirteen new chemical entities, four new diagnostic agents, and thirteen biologic drugs. Recognizing the importance of small-molecules on cancer treatment, this review aims to provide an overview regarding the clinical applications and mechanism of action of the thirteen new small-molecules (excluding new diagnostic agents) approved by FDA in 2020.
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Affiliation(s)
- Thais Cristina Mendonça Nogueira
- Instituto de Tecnologia em Fármacos-Far Manguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, Manguinhos, Rio de Janeiro, RJ 21041- 250 Brazil
| | - Marcus Vinicius Nora de Souza
- Instituto de Tecnologia em Fármacos-Far Manguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, Manguinhos, Rio de Janeiro, RJ 21041- 250 Brazil.
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30
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Zhang J, Sun J, Bakht S, Hassan W. Recent Development and Future Prospects of Molecular Targeted Therapy in Prostate Cancer. Curr Mol Pharmacol 2021; 15:159-169. [PMID: 34102978 DOI: 10.2174/1874467214666210608141102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/25/2021] [Accepted: 04/05/2021] [Indexed: 11/22/2022]
Abstract
Prostate cancer (PC) is a rapidly increasing ailment worldwide. The previous decade has observed a rapid advancement in PC therapies that was evident from the number of FDA approvals during this phase. Androgen deprivation therapies (ADT) have traditionally remained a mainstay for the management of PCs, but the past decade has experienced the emergence of newer classes of drugs that can be used with or without the administration of ADT. FDA approved poly (ADP-ribose) polymerase inhibitors (PARPi), such as olaparib and rucaparib, after successful clinical trials against gene-mutated metastatic castration-resistant prostate cancer. Furthermore, drugs like apalutamide, darolutamide, and enzalutamide with an androgen-targeted mechanism of action have manifested superior results in non-metastatic castration-resistant prostate cancer (nmCRPC), metastatic castration-sensitive prostate cancer (mCSPC), and metastatic castration-resistant prostate cancer (mCRPC), respectively, with or without previously administered docetaxel. Relugolix, an oral gonadotropin-releasing hormone antagonist, and a combination of abiraterone acetate plus prednisone were also approved by FDA after a successful trial in advanced PC and mCRPC, respectively. This review aims to analyze the FDA-approved agents in PC during the last decade and provide a summary of their clinical trials. It also presents an overview of the ongoing progress of prospective molecules still under trial.
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Affiliation(s)
- Jinku Zhang
- Department of Pathology, First center Hospital of Baoding city, Hebei, 071000, China
| | - Jirui Sun
- Department of Pathology, First center Hospital of Baoding city, Hebei, 071000, China
| | - Sahar Bakht
- Department of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Waseem Hassan
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
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Abstract
Huggins and Hodges demonstrated the therapeutic effect of gonadal testosterone deprivation in the 1940s and therefore firmly established the concept that prostate cancer is a highly androgen-dependent disease. Since that time, hormonal therapy has undergone iterative advancement, from the types of gonadal testosterone deprivation to modalities that block the generation of adrenal and other extragonadal androgens, to those that directly bind and inhibit the androgen receptor (AR). The clinical states of prostate cancer are the product of a superimposition of these therapies with nonmetastatic advanced prostate cancer, as well as frankly metastatic disease. Today's standard of care for advanced prostate cancer includes gonadotropin-releasing hormone agonists (e.g., leuprolide), second-generation nonsteroidal AR antagonists (enzalutamide, apalutamide, and darolutamide) and the androgen biosynthesis inhibitor abiraterone. The purpose of this review is to provide an assessment of hormonal therapies for the various clinical states of prostate cancer. The advancement of today's standard of care will require an accounting of an individual's androgen physiology that also has recently recognized germline determinants of peripheral androgen metabolism, which include HSD3B1 inheritance.
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Affiliation(s)
- Kunal Desai
- Department of Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Jeffrey M McManus
- Genitourinary Malignancies Research Center, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Nima Sharifi
- Genitourinary Malignancies Research Center, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Hematology and Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
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32
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Saad F, Shore ND. Relugolix: a novel androgen deprivation therapy for management of patients with advanced prostate cancer. Ther Adv Med Oncol 2021; 13:1758835921998586. [PMID: 34408793 PMCID: PMC8366106 DOI: 10.1177/1758835921998586] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/05/2021] [Indexed: 12/11/2022] Open
Abstract
Androgen deprivation therapy (ADT) is the foundation of treatment for patients with locally advanced, recurrent and metastatic prostate cancer, most commonly using luteinizing releasing hormone (LHRH) agonists. More recently, a new approach to ADT has emerged with the development of gonadotropin-releasing hormone (GnRH) antagonists, which aim to overcome some of the potential adverse physiologic effects of LHRH agonists. This article focuses on the newest GnRH antagonist, relugolix - a once-daily treatment and the only oral GnRH antagonist that has now been approved for the treatment of advanced prostate cancer. In phase II and III studies, relugolix achieved rapid and sustained castration without the testosterone surge associated with LHRH agonists, thus avoiding the potential clinical consequences of tumor flare and the necessity for concomitant anti-androgen therapy. Relugolix also achieved rapid testosterone recovery, which may potentially reduce ADT-related adverse events and offer opportunities for combination and intermittent therapy strategies. Cardiovascular safety is a particular concern in men with prostate cancer and ADT further increases cardiovascular risk: indeed, LHRH agonists are required to have a drug label warning about an increased risk of cardiovascular disease. Data from the phase III HERO study demonstrate an improved cardiac safety profile for the GnRH antagonist relugolix compared with the LHRH agonist leuprolide, including a significantly reduced risk for a major adverse cardiovascular event. Taken together, the data indicate that relugolix may mitigate some of the cardiovascular concerns surrounding ADT and has the potential to become a new standard of care for men with prostate cancer. In summary, relugolix represents a novel and recently available prostate cancer management strategy, incorporating the mechanistic advantages of GnRH antagonists and the potential benefits of oral administration.
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Affiliation(s)
- Fred Saad
- University of Montreal Hospital Centre, Pavillon R 900, Rue St-Denis, Montreal, Quebec H2X 0A9, Canada
| | - Neal D. Shore
- Carolina Urologic Research Center, Myrtle Beach, SC, USA
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33
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Liu YF, Fu SQ, Yan YC, Gong BB, Xie WJ, Yang XR, Sun T, Ma M. Progress in Clinical Research on Gonadotropin-Releasing Hormone Receptor Antagonists for the Treatment of Prostate Cancer. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:639-649. [PMID: 33623372 PMCID: PMC7896730 DOI: 10.2147/dddt.s291369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/20/2021] [Indexed: 01/04/2023]
Abstract
Gonadotropin-releasing hormone (GnRH) receptor agonists are still the most commonly used androgen deprivation treatment (ADT) drugs for prostate cancer in clinical practice. Currently, the GnRH receptor antagonists used for endocrine therapy for prostate cancer primarily include degarelix and relugolix (TAK-385). The former is administered by subcutaneous injection, while the latter is an oral drug. Compared to GnRH agonists, GnRH antagonists reduce serum testosterone levels more rapidly without an initial testosterone surge or subsequent microsurges. This review focuses on the mechanism of action of GnRH antagonists and agonists, the developmental history of GnRH antagonists, and emerging data from clinical studies of the two antagonists used as endocrine therapy for prostate cancer.
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Affiliation(s)
- Yi-Fu Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Sheng-Qiang Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Yu-Chang Yan
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Bin-Bin Gong
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Wen-Jie Xie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Xiao-Rong Yang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Ting Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Ming Ma
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
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34
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Tzoupis H, Nteli A, Androutsou ME, Tselios T. Gonadotropin-Releasing Hormone and GnRH Receptor: Structure, Function and Drug Development. Curr Med Chem 2021; 27:6136-6158. [PMID: 31309882 DOI: 10.2174/0929867326666190712165444] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 01/11/2023]
Abstract
BACKGROUND Gonadotropin-Releasing Hormone (GnRH) is a key element in sexual maturation and regulation of the reproductive cycle in the human organism. GnRH interacts with the pituitary cells through the activation of the Gonadotropin Releasing Hormone Receptors (GnRHR). Any impairments/dysfunctions of the GnRH-GnRHR complex lead to the development of various cancer types and disorders. Furthermore, the identification of GnRHR as a potential drug target has led to the development of agonist and antagonist molecules implemented in various treatment protocols. The development of these drugs was based on the information derived from the functional studies of GnRH and GnRHR. OBJECTIVE This review aims at shedding light on the versatile function of GnRH and GnRH receptor and offers an apprehensive summary regarding the development of different agonists, antagonists and non-peptide GnRH analogues. CONCLUSION The information derived from these studies can enhance our understanding of the GnRH-GnRHR versatile nature and offer valuable insight into the design of new more potent molecules.
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Affiliation(s)
| | - Agathi Nteli
- Department of Chemistry, University of Patras, Rion GR-26504, Greece
| | - Maria-Eleni Androutsou
- Vianex S.A., Tatoiou Str., 18th km Athens-Lamia National Road, Nea Erythrea 14671, Greece
| | - Theodore Tselios
- Department of Chemistry, University of Patras, Rion GR-26504, Greece
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Wu HM, Chang HM, Leung PCK. Gonadotropin-releasing hormone analogs: Mechanisms of action and clinical applications in female reproduction. Front Neuroendocrinol 2021; 60:100876. [PMID: 33045257 DOI: 10.1016/j.yfrne.2020.100876] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/23/2020] [Accepted: 10/04/2020] [Indexed: 12/15/2022]
Abstract
Extra-hypothalamic GnRH and extra-pituitary GnRH receptors exist in multiple human reproductive tissues, including the ovary, endometrium and myometrium. Recently, new analogs (agonists and antagonists) and modes of GnRH have been developed for clinical application during controlled ovarian hyperstimulation for assisted reproductive technology (ART). Additionally, the analogs and upstream regulators of GnRH suppress gonadotropin secretion and regulate the functions of the reproductive axis. GnRH signaling is primarily involved in the direct control of female reproduction. The cellular mechanisms and action of the GnRH/GnRH receptor system have been clinically applied for the treatment of reproductive disorders and have widely been introduced in ART. New GnRH analogs, such as long-acting GnRH analogs and oral nonpeptide GnRH antagonists, are being continuously developed for clinical application. The identification of the upstream regulators of GnRH, such as kisspeptin and neurokinin B, provides promising potential to develop these upstream regulator-related analogs to control the hypothalamus-pituitary-ovarian axis.
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Affiliation(s)
- Hsien-Ming Wu
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Linkou Medical Center, Chang Gung University School of Medicine, Taoyuan 333, Taiwan, ROC
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V6H 3V5, Canada
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V6H 3V5, Canada.
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Dearnaley DP, Saltzstein DR, Sylvester JE, Karsh L, Mehlhaff BA, Pieczonka C, Bailen JL, Shi H, Ye Z, Faessel HM, Lin H, Zhu Y, Saad F, MacLean DB, Shore ND. The Oral Gonadotropin-releasing Hormone Receptor Antagonist Relugolix as Neoadjuvant/Adjuvant Androgen Deprivation Therapy to External Beam Radiotherapy in Patients with Localised Intermediate-risk Prostate Cancer: A Randomised, Open-label, Parallel-group Phase 2 Trial. Eur Urol 2020; 78:184-192. [PMID: 32273183 DOI: 10.1016/j.eururo.2020.03.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 03/02/2020] [Indexed: 01/27/2023]
Abstract
BACKGROUND External beam radiotherapy (EBRT) with neoadjuvant/adjuvant androgen deprivation therapy (ADT) is an established treatment option to prolong survival for patients with intermediate- and high-risk prostate cancer (PCa). Relugolix, an oral gonadotropin-releasing hormone (GnRH) receptor antagonist, was evaluated in this clinical setting in comparison with degarelix, an injectable GnRH antagonist. OBJECTIVE To evaluate the safety and efficacy of relugolix to achieve and maintain castration. DESIGN, SETTING, AND PARTICIPANTS A phase 2 open-label study was conducted in 103 intermediate-risk PCa patients undergoing primary EBRT and neoadjuvant/adjuvant ADT between June 2014 and December 2015. INTERVENTION Patients randomly assigned (3:2) to 24-wk treatment with either daily oral relugolix or 4-wk subcutaneous depot degarelix (reference control). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary endpoint was the rate of effective castration (testosterone <1.73nmol/l) in relugolix patients between 4 and 24 wk of treatment. Secondary endpoints included rate of profound castration (testosterone <0.7nmol/l), prostate-specific antigen (PSA) levels, prostate volume, quality of life (QoL) assessed using the Aging Males' Symptoms scale, and the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life (30-item EORTC core questionnaire [EORTC QLQ-C30] and 25-item EORTC prostate cancer module [EORTC QLQ-PR25]) questionnaires, and safety. No formal statistical comparisons with degarelix were planned. RESULTS AND LIMITATIONS Castration rates during treatment were 95% and 82% with relugolix and 89% and 68% with degarelix for 1.73 and 0.7nmol/l thresholds, respectively. Median time to castration in the relugolix arm was 4 d. During treatment, PSA levels and prostate volumes were reduced in both groups. Three months after discontinuing treatment, 52% of men on relugolix and 16% on degarelix experienced testosterone recovery (statistical significance of differences not tested). Mean and median QoL scores improved following treatment discontinuation. The most common adverse event was hot flush (relugolix 57%; degarelix 61%). Lack of blinding was a potential limitation. CONCLUSIONS Relugolix achieved testosterone suppression to castrate levels within days and maintained it over 24 wk with a safety profile consistent with its mechanism of action. PATIENT SUMMARY Oral once-daily relugolix may be a novel oral alternative to injectable androgen deprivation therapies.
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Affiliation(s)
- David P Dearnaley
- The Institute of Cancer Research and Royal Marsden Hospital, London, UK.
| | | | | | | | | | | | | | | | - Zhan Ye
- Millennium Pharmaceuticals, Inc., Cambridge, MA, USA(†)
| | | | - Huamao Lin
- Millennium Pharmaceuticals, Inc., Cambridge, MA, USA(†)
| | - Yanyan Zhu
- Millennium Pharmaceuticals, Inc., Cambridge, MA, USA(†)
| | - Fred Saad
- University of Montreal Hospital Center, Montreal, QC, Canada
| | | | - Neal D Shore
- Carolina Urologic Research Center, Myrtle Beach, SC, USA
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Shore ND, Saad F, Cookson MS, George DJ, Saltzstein DR, Tutrone R, Akaza H, Bossi A, van Veenhuyzen DF, Selby B, Fan X, Kang V, Walling J, Tombal B. Oral Relugolix for Androgen-Deprivation Therapy in Advanced Prostate Cancer. N Engl J Med 2020; 382:2187-2196. [PMID: 32469183 DOI: 10.1056/nejmoa2004325] [Citation(s) in RCA: 226] [Impact Index Per Article: 56.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND 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. METHODS In this phase 3 trial, we randomly assigned patients with advanced prostate cancer, in a 2:1 ratio, to receive relugolix (120 mg orally once daily) or leuprolide (injections every 3 months) for 48 weeks. The primary end point was sustained testosterone suppression to castrate levels (<50 ng per deciliter) through 48 weeks. Secondary end points included noninferiority with respect to the primary end point, castrate levels of testosterone on day 4, and profound castrate levels (<20 ng per deciliter) on day 15. Testosterone recovery was evaluated in a subgroup of patients. RESULTS A total of 622 patients received relugolix and 308 received leuprolide. Of men who received relugolix, 96.7% (95% confidence interval [CI], 94.9 to 97.9) maintained castration through 48 weeks, as compared with 88.8% (95% CI, 84.6 to 91.8) of men receiving leuprolide. The difference of 7.9 percentage points (95% CI, 4.1 to 11.8) showed noninferiority and superiority of relugolix (P<0.001 for superiority). All other key secondary end points showed superiority of relugolix over leuprolide (P<0.001). The percentage of patients with castrate levels of testosterone on day 4 was 56.0% with relugolix and 0% with leuprolide. In the subgroup of 184 patients followed for testosterone recovery, the mean testosterone levels 90 days after treatment discontinuation were 288.4 ng per deciliter in the relugolix group and 58.6 ng per deciliter in the leuprolide group. Among all the patients, the incidence of major adverse cardiovascular events was 2.9% in the relugolix group and 6.2% in the leuprolide group (hazard ratio, 0.46; 95% CI, 0.24 to 0.88). CONCLUSIONS In this trial involving men with advanced prostate cancer, relugolix achieved rapid, sustained suppression of testosterone levels that was superior to that with leuprolide, with a 54% lower risk of major adverse cardiovascular events. (Funded by Myovant Sciences; HERO ClinicalTrials.gov number, NCT03085095.).
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Affiliation(s)
- Neal D Shore
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Fred Saad
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Michael S Cookson
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Daniel J George
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Daniel R Saltzstein
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Ronald Tutrone
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Hideyuki Akaza
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Alberto Bossi
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - David F van Veenhuyzen
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Bryan Selby
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Xiaolin Fan
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Vicky Kang
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Jackie Walling
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
| | - Bertrand Tombal
- 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 Initiative in Information Studies-Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo (H.A.); the Department of Radiation Oncology, Gustave Roussy Cancer Institute, Villejuif, France (A.B.); Myovant Sciences, Brisbane, CA (D.F.V., B.S., X.F., V.K., J.W.); and Service d'Urologie, Cliniques Universitaires Saint Luc, Brussels (B.T.)
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Suzuki H, Uemura H, Mizokami A, Hayashi N, Miyoshi Y, Nagamori S, Enomoto Y, Akaza H, Asato T, Kitagawa T, Suzuki K. Phase I trial of TAK-385 in hormone treatment-naïve Japanese patients with nonmetastatic prostate cancer. Cancer Med 2019; 8:5891-5902. [PMID: 31429205 PMCID: PMC6792482 DOI: 10.1002/cam4.2442] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/12/2019] [Accepted: 07/12/2019] [Indexed: 01/24/2023] Open
Abstract
This open‐label, phase I dose‐finding study evaluated the gonadotropin‐releasing hormone antagonist, TAK‐385, in Japanese patients with nonmetastatic prostate cancer. In a two‐part design, patients received daily oral TAK‐385 at doses of 320 (loading, day 1)/80 (maintenance, day 2 and thereafter), 320/120, 320/160, or 360/120 mg for 28 days in a dose‐escalation phase (part A, n = 13), and at 320/80 or 320/120 mg for up to 96 weeks in a randomized expansion phase (part B, n = 30). Primary endpoint in both parts was safety, including dose‐limiting toxicity in part A. Secondary endpoints included pharmacokinetics, pharmacodynamics, and prostate‐specific antigen concentration. Ten (77%) patients in part A and all patients in part B experienced an adverse event; hot flush (part A, n = 4; part B, n = 15), viral upper respiratory tract infection (part A, n = 1; part B, n = 10), and diarrhea (part B, n = 8) were most frequent. No dose‐limiting toxicities were observed (part A). In 12 evaluable patients (part A), TAK‐385 was rapidly absorbed after a single loading dose; on day 28 (maintenance dose), median steady‐state Tmax was ~1‐2 hours and mean t1/2z was 67‐79 hours. All doses rapidly reduced testosterone concentrations to castration levels within 1 week. Durable reductions in prostate‐specific antigen of >90% from baseline were observed through 96 weeks. TAK‐385 appeared tolerable and resulted in sustained reductions in testosterone to castration levels at all doses. The lowest loading/maintenance dose required for a clinical effect was 320/80 mg. http://ClinicalTrials.gov: NCT02141659.
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Affiliation(s)
- Hiroyoshi Suzuki
- Department of Urology, Toho University Sakura Medical Center, Chiba, Japan
| | - Hiroji Uemura
- Department of Urology and Renal Transplantation, Yokohama City University Medical Center, Yokohama, Japan
| | - Atsushi Mizokami
- Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Narihiko Hayashi
- Department of Urology, Public University Corporation Yokohama City University Hospital, Yokohama, Japan
| | - Yasuhide Miyoshi
- Department of Urology and Renal Transplantation, Yokohama City University Medical Center, Yokohama, Japan
| | - Satoshi Nagamori
- Department of Urology, Incorporated Administrative Agency National Hospital Organization Hokkaido Cancer Center, Sapporo, Japan
| | - Yutaka Enomoto
- Department of Urology, Mitsui Memorial Hospital, Tokyo, Japan
| | - Hideyuki Akaza
- Department of Strategic Investigation on Comprehensive Cancer Network, Interfaculty Initiative in Information Studies/Graduate School of Interdisciplinary Information Studies, The University of Tokyo, Tokyo, Japan
| | - Takayuki Asato
- Oncology Clinical Research Department, Oncology Therapeutic Area Unit for Japan and Asia, Takeda Pharmaceutical Company Limited, Osaka, Japan
| | - Tadayuki Kitagawa
- Japan Development Center, Takeda Pharmaceutical Company Limited, Osaka, Japan
| | - Kazuhiro Suzuki
- Department of Urology, Graduate School of Medicine, National University Corporation Gunma University, Maebashi, Japan
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Singla N, Ghandour RA, Raj GV. Investigational luteinizing hormone releasing hormone (LHRH) agonists and other hormonal agents in early stage clinical trials for prostate cancer. Expert Opin Investig Drugs 2019; 28:249-259. [PMID: 30649971 DOI: 10.1080/13543784.2019.1570130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The treatment and management of prostate cancer continues to evolve; newer classes of agents and combination therapies are being developed and some are being investigated in early phase clinical trials. AREAS COVERED We discuss investigational hormonal agents for the treatment of prostate cancer and focus primarily on luteinizing hormone releasing hormone (LHRH) agonists in early stage trials. We look at agents that target the hormonal axis, including anti-androgens, gonadotropins, estrogenic agents and progestogenic agents and other non-hormonal agents often used in combination with LHRH agonists. We review these candidates in the specific clinical niche in which they might find utility. EXPERT OPINION Of all candidate compounds being evaluated in clinical trials, very few will receive FDA approval. Few, if any of the investigational agents discussed here will be used routinely in clinical practice for treating prostate cancer. Recognizing the reasons for the failure of agents to advance to later stage trials is important. Furthermore, a thorough understanding of the mechanisms underlying prostate cancer pathogenesis, including various points in the HGPA and parallel pathways, will help identify potentially actionable targets.
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Affiliation(s)
- Nirmish Singla
- a Department of Urology , University of Texas Southwestern Medical Center , Dallas , TX , USA
| | - Rashed A Ghandour
- a Department of Urology , University of Texas Southwestern Medical Center , Dallas , TX , USA
| | - Ganesh V Raj
- a Department of Urology , University of Texas Southwestern Medical Center , Dallas , TX , USA
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Newton CL, Riekert C, Millar RP. Gonadotropin-releasing hormone analog therapeutics. ACTA ACUST UNITED AC 2018; 70:497-515. [PMID: 30264955 DOI: 10.23736/s0026-4784.18.04316-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Dysregulation at any level of the hypothalamic-pituitary-gonadal (HPG) axis results in, or aggravates, a number of hormone-dependent diseases such as delayed or precocious puberty, infertility, prostatic and ovarian cancer, benign prostatic hyperplasia, polycystic ovarian syndrome, endometriosis, uterine fibroids, lean body mass, as well as metabolism and cognitive impairment. As gonadotropin-releasing-hormone (GnRH) is an essential regulator of the HPG axis, agonist and antagonist analogs are efficacious in the treatment of these conditions. GnRH analogs also play an important role in assisted reproductive therapies. This review highlights the current and future therapeutic potential of GnRH analogs and upstream regulators of GnRH secretion.
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Affiliation(s)
- Claire L Newton
- Centre for Neuroendocrinology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.,Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.,Centre for Integrative Physiology, Deanery of Biomedical Sciences, University of Edinburgh, Edinburgh, UK
| | - Carmen Riekert
- Centre for Neuroendocrinology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.,Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Robert P Millar
- Centre for Neuroendocrinology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa - .,Centre for Integrative Physiology, Deanery of Biomedical Sciences, University of Edinburgh, Edinburgh, UK.,Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.,Department of Integrative Biomedical Sciences, and Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
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Androgen-targeted therapy in men with prostate cancer: evolving practice and future considerations. Prostate Cancer Prostatic Dis 2018; 22:24-38. [PMID: 30131604 PMCID: PMC6370592 DOI: 10.1038/s41391-018-0079-0] [Citation(s) in RCA: 192] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/12/2018] [Accepted: 07/20/2018] [Indexed: 02/07/2023]
Abstract
Background Androgen deprivation therapy (ADT) is foundational in the management of advanced prostate cancer (PCa) and has benefitted from a recent explosion in scientific advances. These include approval of new therapies that suppress testosterone (T) levels or inactivate its function, improvements in diagnostic and assay technologies, identification of lower therapeutic targets for T, discovery of the relevance of germline genetic mutations and identification of the benefits of sequential and combination therapies. Methods This review discusses the clinical profiles of the most up-to-date options for ADT, best practices for managing patients with advanced PCa and future directions in therapy. Results and conclusions Modern assay technologies reveal that bilateral orchiectomy results in a serum T level of approximately 15 ng/dL as compared to the historical definition of castration of T < 50 ng/dL. Evidence shows that lowering T levels to <20 ng/dL improves patient survival and delays disease progression. Routine monitoring of T in addition to prostate-specific antigen throughout treatment is important to ensure continuing efficacy of T suppression. New drugs that inhibit androgen signaling in combination with traditional ADT suppress T activity to near zero and have significantly improved patient survival. When personalizing ADT regimens physicians should consider a number of factors including initiation and duration of ADT, monitoring of T levels and PSA, the possibility of switching monotherapies if a patient does not achieve adequate T suppression, and consideration of intermittent vs. continuous ADT according to patients’ lifestyles, comorbidities, risk factors and tolerance to treatment.
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Ali M, Chaudhry ZT, Al-Hendy A. Successes and failures of uterine leiomyoma drug discovery. Expert Opin Drug Discov 2017; 13:169-177. [PMID: 29254389 DOI: 10.1080/17460441.2018.1417381] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION To-date, the only cure for symptomatic uterine fibroids (UFs) is surgical intervention. However, surgery may eliminate the hope of future pregnancies; moreover, the intrinsic risks of surgery make it a less favorable to women with UFs. Because of this, conservative medical therapies have become an attractive and prior option for those women. Leuprolide acetate (LA), a gonadotropin-releasing hormone (GnRH) agonist, is the only pharmacological agent currently approved for the short-term and pre-operative management of symptomatic UFs in the USA. Areas covered: This systematic review covers the successes and failures of prominent drugs that have been researched for UFs in the past and agents that have shown promise in recent clinical trials. The most recent clinical trials and advances in drug therapy are presented in a comprehensive overview outlining the direction UF drug discovery is heading. Expert opinion: Experts in the field are already on the forefront leading the responsibility to uncover potential drugs as long term fertility friendly viable options for non-invasive treatment/prevention of UFs. Indeed, a shift in the UF management is expected in the future.
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Affiliation(s)
- Mohamed Ali
- a Department of Obstetrics and Gynecology , Medical College of Georgia, Augusta University , Augusta , GA , USA.,b Clinical Pharmacy Department, Faculty of Pharmacy , Ain Shams University , Cairo , Egypt
| | - Zunir Tayyeb Chaudhry
- c Department of Clinical sciences , St. James School of Medicine , St. Vincent , Caribbean
| | - Ayman Al-Hendy
- a Department of Obstetrics and Gynecology , Medical College of Georgia, Augusta University , Augusta , GA , USA
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Tukun FL, Olberg DE, Riss PJ, Haraldsen I, Kaass A, Klaveness J. Recent Development of Non-Peptide GnRH Antagonists. Molecules 2017; 22:molecules22122188. [PMID: 29232843 PMCID: PMC6149776 DOI: 10.3390/molecules22122188] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/04/2017] [Accepted: 12/04/2017] [Indexed: 11/30/2022] Open
Abstract
The decapeptide gonadotropin-releasing hormone, also referred to as luteinizing hormone-releasing hormone with the sequence (pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2) plays an important role in regulating the reproductive system. It stimulates differential release of the gonadotropins FSH and LH from pituitary tissue. To date, treatment of hormone-dependent diseases targeting the GnRH receptor, including peptide GnRH agonist and antagonists are now available on the market. The inherited issues associate with peptide agonists and antagonists have however, led to significant interest in developing orally active, small molecule, non-peptide antagonists. In this review, we will summarize all developed small molecule GnRH antagonists along with the most recent clinical data and therapeutic applications.
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Affiliation(s)
| | - Dag Erlend Olberg
- School of Pharmacy, University of Oslo, 0316 Oslo, Norway.
- Norsk Medisinsk Syklotronsenter AS, Postboks 4950 Nydalen, 0424 Oslo, Norway.
| | - Patrick J Riss
- Norsk Medisinsk Syklotronsenter AS, Postboks 4950 Nydalen, 0424 Oslo, Norway.
- Realomics SFI, Department of Chemistry, University of Oslo, 0316 Oslo, Norway.
- Department of neuropsychiatry and psychosomatic medicine, Oslo University Hospital, 4950 Oslo, Norway.
| | - Ira Haraldsen
- Department of neuropsychiatry and psychosomatic medicine, Oslo University Hospital, 4950 Oslo, Norway.
| | | | - Jo Klaveness
- School of Pharmacy, University of Oslo, 0316 Oslo, Norway.
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Dellis A, Papatsoris A. Therapeutic outcomes of the LHRH antagonists. Expert Rev Pharmacoecon Outcomes Res 2017; 17:481-488. [DOI: 10.1080/14737167.2017.1375855] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Athanasios Dellis
- University Department of Urology, Sismanglio General Hospital, Athens, Greece
- University Department of Surgery, Areteion Hospital, Athens, Greece
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Pham T, Sadowski MC, Li H, Richard DJ, d'Emden MC, Richard K. Advances in hormonal therapies for hormone naïve and castration-resistant prostate cancers with or without previous chemotherapy. Exp Hematol Oncol 2016; 5:15. [PMID: 27340608 PMCID: PMC4918127 DOI: 10.1186/s40164-016-0046-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 06/09/2016] [Indexed: 11/28/2022] Open
Abstract
Hormonal manipulation plays a significant role in the treatment of advanced hormone naïve prostate cancer and castration-resistant prostate cancer (CRPC) with or without previous chemotherapy. Combination of gonadotropin releasing hormone (GnRH) agonists and androgen receptor (AR) antagonists (combined androgen blockade; CAB) is the first line therapy for advanced hormone naïve prostate cancer, but current strategies are developing novel GnRH antagonists to overcome disadvantages associated with GnRH agonist monotherapy and CAB in the clinical setting. Abiraterone acetate and enzalutamide are hormonal agents currently available for patients with CRPC and are both shown to improve overall survival versus placebo. Recently, in clinical trials, testosterone has been administered in cycles with existing surgical and chemical androgen deprivation therapies (ADT) (intermittent therapy) to CRPC patients of different stages (low risk, metastatic) to abate symptoms of testosterone deficiency and reduce cost of treatment from current hormonal therapies for patients with CRPC. This review will provide an overview on the therapeutic roles of hormonal manipulation in advanced hormone naïve and castration-resistant prostate cancers, as well as the development of novel hormonal therapies currently in preclinical and clinical trials.
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Affiliation(s)
- Thy Pham
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Level 9, Bancroft Centre, 300 Herston Road, Herston, QLD 4029 Australia
| | - Martin C Sadowski
- Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, Queensland University of Technology, Princess Alexandra Hospital, Translational Research Institute, Brisbane, QLD 4102 Australia
| | - Huika Li
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Level 9, Bancroft Centre, 300 Herston Road, Herston, QLD 4029 Australia
| | - Derek J Richard
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD 4000 Australia
| | - Michael C d'Emden
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Level 9, Bancroft Centre, 300 Herston Road, Herston, QLD 4029 Australia ; Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Herston, QLD 4029 Australia
| | - Kerry Richard
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Level 9, Bancroft Centre, 300 Herston Road, Herston, QLD 4029 Australia ; School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD 4000 Australia
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Abstract
World population continues to grow at an unprecedented rate, doubling in a mere 50years to surpass the 7-billion milestone in 2011. This steep population growth exerts enormous pressure on the global environment. Despite the availability of numerous contraceptive choices for women, approximately half of all pregnancies are unintended and at least half of those are unwanted. Such statistics suggest that there is still a gap in contraceptive options for couples, particularly effective reversible contraceptives for men, who have few contraceptive choices. Male hormonal contraception has been an active area of research for almost 50years. The fundamental concept involves the use of exogenous hormones to suppress endogenous production of gonadotropins, testosterone, and downstream spermatogenesis. Testosterone-alone regimens are effective in many men but high dosing requirements and sub-optimal gonadotropin suppression in 10-30% of men limit their use. A number of novel combinations of testosterone and progestins have been shown to be more efficacious but still require further refinement in delivery systems and a clearer understanding of the potential short- and long-term side effects. Recently, synthetic androgens with both androgenic and progestogenic activity have been developed. These agents have the potential to be single-agent male hormonal contraceptives. Early studies of these compounds are encouraging and there is reason for optimism that these may provide safe, reversible, and reliable contraception for men in the near future.
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Affiliation(s)
- Jing H Chao
- Division of Metabolism, Endocrinology and Nutrition, University of Washington, Seattle, WA, USA
| | - Stephanie T Page
- Division of Metabolism, Endocrinology and Nutrition, University of Washington, Seattle, WA, USA.
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