Hormonal Effects of the Oral Gonadotropin Releasing Hormone (GnRH) Antagonist at Different Periods of the Menstrual Cycle
Can Hormonal Effects of the Oral Gonadotropin Releasing Hormone (GnRH) Antagonist Withstand When Administered at Different Points in the Menstrual Cycle?
1 other identifier
interventional
12
0 countries
N/A
Brief Summary
The purpose of this study is twofold: First, to see if elagolix can suppress gonadotropin and ovarian hormones in the short-term period, when only administered for a 72-hour period. If elagolix effectively suppresses gonadotropin and ovarian hormones in a timely manner, it could be used to alter aspects of the menstrual cycle, depending on when administered. Second, is there a window for when elagolix functions best? While other studies initiate elagolix at the start of a woman's menstrual cycle, investigators of this study want to determine if administering elagolix at various points in a woman's menstrual cycle alters its ability to suppress gonadal and ovarian hormones.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4
Started Oct 2019
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 7, 2019
CompletedFirst Posted
Study publicly available on registry
August 19, 2019
CompletedStudy Start
First participant enrolled
October 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 30, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2021
CompletedAugust 19, 2019
August 1, 2019
1.1 years
August 7, 2019
August 14, 2019
Conditions
Outcome Measures
Primary Outcomes (1)
Suppression of gonadotropin and pituitary hormones as measured by hormonal assay status post short-term administration of elagolix
Measure serum concentrations of follicle stimulation hormone (FSH), luteinizing hormone (LH), estradiol, progesterone at baseline and throughout three-day course of elagolix
measured over 4 days
Secondary Outcomes (1)
Time interval to next menses
up to 4 weeks
Study Arms (3)
Early Follicular Phase
EXPERIMENTALWomen enrolled will be anywhere from cycle day 1 through 5 of their menstrual cycle and take elagolix 200mg oral tablet BID for 3 days total.
Late Follicular Phase
ACTIVE COMPARATORWomen enrolled will be anywhere from cycle day 8 through 13 of their menstrual cycle and take elagolix 200mg oral tablet BID for 3 days total.
Luteal Phase
ACTIVE COMPARATORWomen enrolled will be anywhere from cycle day 21 through cycle day 26 of their menstrual cycle and take elagolix 200mg oral tablet BID for 3 days total.
Interventions
oral tablet given twice daily
Eligibility Criteria
You may qualify if:
- Healthy volunteers from USC Fertility
- Documented ovulation with a serum mid-luteal progesterone ≥3pg/mL
- Ovulatory with a 24-35-day cycle
- Ages 18-39
- Body Mass Index (BMI) 18.1-30.0kg/m2
- Consistent condom use for contraception
- Not desiring or seeking pregnancy
You may not qualify if:
- Allergy to injectable or oral GnRH-antagonist
- FSH ≥ 10 IU/L or LH ≥ 10 IU/L in early follicular phase iii. Known liver disease iv. Known osteoporosis v. Pregnancy vi. Current use of drugs metabolized by the liver enzyme CYP3A, specifically ketoconazole, rifampin, digoxin, oral midazolam, or rosuvastatin.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (11)
Kumar P, Sharma A. Gonadotropin-releasing hormone analogs: Understanding advantages and limitations. J Hum Reprod Sci. 2014 Jul;7(3):170-4. doi: 10.4103/0974-1208.142476.
PMID: 25395741RESULTAndreyko JL, Marshall LA, Dumesic DA, Jaffe RB. Therapeutic uses of gonadotropin-releasing hormone analogs. Obstet Gynecol Surv. 1987 Jan;42(1):1-21.
PMID: 3543765RESULTFluker M, Grifo J, Leader A, Levy M, Meldrum D, Muasher SJ, Rinehart J, Rosenwaks Z, Scott RT Jr, Schoolcraft W, Shapiro DB; North American Ganirelix Study Group. Efficacy and safety of ganirelix acetate versus leuprolide acetate in women undergoing controlled ovarian hyperstimulation. Fertil Steril. 2001 Jan;75(1):38-45. doi: 10.1016/s0015-0282(00)01638-1.
PMID: 11163814RESULTGarcia-Velasco JA, Isaza V, Vidal C, Landazabal A, Remohi J, Simon C, Pellicer A. Human ovarian steroid secretion in vivo: effects of GnRH agonist versus antagonist (cetrorelix). Hum Reprod. 2001 Dec;16(12):2533-9. doi: 10.1093/humrep/16.12.2533.
PMID: 11726570RESULTFluker MR, Marshall LA, Monroe SE, Jaffe RB. Variable ovarian response to gonadotropin-releasing hormone antagonist-induced gonadotropin deprivation during different phases of the menstrual cycle. J Clin Endocrinol Metab. 1991 Apr;72(4):912-9. doi: 10.1210/jcem-72-4-912.
PMID: 2005218RESULTDepalo R, Jayakrishan K, Garruti G, Totaro I, Panzarino M, Giorgino F, Selvaggi LE. GnRH agonist versus GnRH antagonist in in vitro fertilization and embryo transfer (IVF/ET). Reprod Biol Endocrinol. 2012 Apr 13;10:26. doi: 10.1186/1477-7827-10-26.
PMID: 22500852RESULTNg J, Chwalisz K, Carter DC, Klein CE. Dose-Dependent Suppression of Gonadotropins and Ovarian Hormones by Elagolix in Healthy Premenopausal Women. J Clin Endocrinol Metab. 2017 May 1;102(5):1683-1691. doi: 10.1210/jc.2016-3845.
PMID: 28323948RESULTElagolix (Orilissa)--an oral GnRH antagonist for endometriosis pain. Med Lett Drugs Ther. 2018 Sep 24;60(1556):158-160. No abstract available.
PMID: 30383729RESULTSurrey E, Taylor HS, Giudice L, Lessey BA, Abrao MS, Archer DF, Diamond MP, Johnson NP, Watts NB, Gallagher JC, Simon JA, Carr BR, Dmowski WP, Leyland N, Singh SS, Rechberger T, Agarwal SK, Duan WR, Schwefel B, Thomas JW, Peloso PM, Ng J, Soliman AM, Chwalisz K. Long-Term Outcomes of Elagolix in Women With Endometriosis: Results From Two Extension Studies. Obstet Gynecol. 2018 Jul;132(1):147-160. doi: 10.1097/AOG.0000000000002675.
PMID: 29889764RESULTTaylor HS, Giudice LC, Lessey BA, Abrao MS, Kotarski J, Archer DF, Diamond MP, Surrey E, Johnson NP, Watts NB, Gallagher JC, Simon JA, Carr BR, Dmowski WP, Leyland N, Rowan JP, Duan WR, Ng J, Schwefel B, Thomas JW, Jain RI, Chwalisz K. Treatment of Endometriosis-Associated Pain with Elagolix, an Oral GnRH Antagonist. N Engl J Med. 2017 Jul 6;377(1):28-40. doi: 10.1056/NEJMoa1700089. Epub 2017 May 19.
PMID: 28525302RESULTDanis RB, Sriprasert I, Stanczyk FZ, Paulson RJ, Winer SA, Ho JR. Does timing matter when initiating elagolix in a natural menstrual cycle? F S Rep. 2021 May 31;2(3):308-313. doi: 10.1016/j.xfre.2021.05.009. eCollection 2021 Sep.
PMID: 34553156DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- SCREENING
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Research Progessor of Obstetrics & Gynecology
Study Record Dates
First Submitted
August 7, 2019
First Posted
August 19, 2019
Study Start
October 1, 2019
Primary Completion
October 30, 2020
Study Completion
July 1, 2021
Last Updated
August 19, 2019
Record last verified: 2019-08
Data Sharing
- IPD Sharing
- Will not share
No, data will not be available to other researchers. At the study completion, all patient data will be destroyed in the HIPAA compliant manner.