PMID- 28270212 OWN - NLM STAT- MEDLINE DCOM- 20170707 LR - 20181113 IS - 1477-7827 (Electronic) IS - 1477-7827 (Linking) VI - 15 IP - 1 DP - 2017 Mar 7 TI - An open-label clinical trial to investigate the efficacy and safety of corifollitropin alfa combined with hCG in adult men with hypogonadotropic hypogonadism. PG - 17 LID - 10.1186/s12958-017-0232-y [doi] LID - 17 AB - BACKGROUND: Hypogonadotropic hypogonadism (HH) in men results in insufficient testicular function and deficiencies in testosterone and spermatogenesis. Combinations of human chorionic gonadotropin (hCG) and recombinant follicle-stimulating hormone (recFSH) have been successful in the treatment of HH. Corifollitropin alfa is a long-acting FSH-analog with demonstrated action in women seeking infertility care. The aim of this study was to investigate the efficacy and safety of corifollitropin alfa combined with hCG to increase testicular volume and induce spermatogenesis in men with HH. METHODS: This was a Phase III, multi-center, open-label, single-arm trial of corifollitropin alfa in azoospermic men aged 18 to 50 years with HH. After 16 weeks of pretreatment of 23 subjects with hCG alone, 18 subjects with normalized testosterone (T) levels who remained azoospermic entered the 52-week combined treatment phase with hCG twice-weekly and 150 mug corifollitropin alfa every other week. The increase in testicular volume (primary efficacy endpoint) and induction of spermatogenesis resulting in a sperm count >/=1 x 10(6)/mL (key secondary efficacy endpoint) during 52 weeks of combined treatment were assessed. Safety was evaluated by the presence of anti-corifollitropin alfa antibodies and the occurrence of adverse events (AEs). RESULTS: Mean (+/-SD) testicular volume increased from 8.6 (+/-6.09) mL to 17.8 (+/-8.93) mL (geometric mean fold increase, 2.30 [95% CI: 2.03, 2.62]); 14 (77.8%) subjects reached a sperm count >/=1 x 10(6)/mL. No subject developed confirmed anti-corifollitropin alfa antibodies during the trial. Treatment was generally well tolerated. CONCLUSIONS: Corifollitropin alfa 150 mug administrated every other week combined with twice-weekly hCG for 52 weeks increased testicular volume significantly, and induced spermatogenesis in >75% of men with HH who had remained azoospermic after hCG treatment alone. TRIAL REGISTRATION: ClinicalTrials.gov: NCT01709331 . FAU - Nieschlag, Eberhard AU - Nieschlag E AUID- ORCID: 0000-0002-1403-3298 AD - University Hospital of Muenster, Center of Reproductive Medicine and Andrology, Domagkstrasse 11, D-48149, Muenster, Germany. eberhard.nieschlag@ukmuenster.de. FAU - Bouloux, Pierre-Marc G AU - Bouloux PG AD - The Royal Free Hospital, Pond St, London, NW3 2QG, UK. FAU - Stegmann, Barbara J AU - Stegmann BJ AD - Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA. FAU - Shankar, R Ravi AU - Shankar RR AD - Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA. FAU - Guan, Yanfen AU - Guan Y AD - Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA. FAU - Tzontcheva, Anjela AU - Tzontcheva A AD - Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA. FAU - McCrary Sisk, Christine AU - McCrary Sisk C AD - Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ, 07033, USA. FAU - Behre, Hermann M AU - Behre HM AD - University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, Ernst-Grube-Str. 40, D-06120, Halle, Germany. LA - eng SI - ClinicalTrials.gov/NCT01709331 PT - Clinical Trial, Phase III PT - Journal Article PT - Multicenter Study DEP - 20170307 PL - England TA - Reprod Biol Endocrinol JT - Reproductive biology and endocrinology : RB&E JID - 101153627 RN - 0 (Chorionic Gonadotropin) RN - 0 (Follicle Stimulating Hormone, Human) RN - 0 (follicle stimulating hormone, human, with HCG C-terminal peptide) SB - IM MH - Adult MH - Azoospermia/complications/*drug therapy MH - Chorionic Gonadotropin/*therapeutic use MH - Drug Administration Schedule MH - Follicle Stimulating Hormone, Human/*therapeutic use MH - Humans MH - Hypogonadism/complications/*drug therapy MH - Male MH - Middle Aged MH - Organ Size/drug effects MH - Spermatogenesis/drug effects MH - Testis/drug effects/pathology MH - Treatment Outcome MH - Young Adult PMC - PMC5341390 OTO - NOTNLM OT - Corifollitropin alfa OT - Gonadotropin deficiency OT - Hypogonadotropic hypogonadism OT - Male infertility OT - Testis EDAT- 2017/03/09 06:00 MHDA- 2017/07/08 06:00 PMCR- 2017/03/07 CRDT- 2017/03/09 06:00 PHST- 2017/01/18 00:00 [received] PHST- 2017/02/21 00:00 [accepted] PHST- 2017/03/09 06:00 [entrez] PHST- 2017/03/09 06:00 [pubmed] PHST- 2017/07/08 06:00 [medline] PHST- 2017/03/07 00:00 [pmc-release] AID - 10.1186/s12958-017-0232-y [pii] AID - 232 [pii] AID - 10.1186/s12958-017-0232-y [doi] PST - epublish SO - Reprod Biol Endocrinol. 2017 Mar 7;15(1):17. doi: 10.1186/s12958-017-0232-y.