RCTNCT01976728Phase 3 · 2014 · n=39 · Ferring Pharmaceuticals Primary Amenorrhea With Hypogonadotropic Hypogonadism
tested Ovulation Rate
RCTNCT04037605Early Phase 1 · 2020 · n=5 · Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center Sleep Restriction
tested Average Blood Cortisol Concentration
result In progress (active-not-recruiting)
Diagnostic & mechanistic studies
tested LH, FSH, prolactin, E2, and progesterone responses to LHRH under alcohol vs placebo
result LHRH significantly raised LH and FSH (P<.0001) under both alcohol and placebo; no significant difference in LH, FSH, or prolactin response between alcohol and placebo in either cycle phase.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested Normalized testicular atrophy index (TAIn) at 1 month, 6 months, and 5 years post-surgery
result Significant TAIn decrease at 5 years in unilateral and overall GnRHa+surgery groups; patients with TAIn >20% showed significant testicular volume increase; bilateral cases not significant.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested Penile size, testicular volume (ultrasound), basal serum LH, FSH, testosterone, Inhibin B, AMH at ~11 months (orchidopexy)
result No significant difference between groups in penile size change, descended/undescended testicular volume, or hormonal levels (LH, FSH, testosterone, Inhibin B, AMH) at orchidopexy.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested Peak LH and FSH response; diagnostic accuracy for CPP vs premature thelarche
result Gonadorelin IV test: peak LH at 30–60 min in all CPP girls (n=3); triptorelin showed equivalent diagnostic efficacy but slower LH peak (>120 min in n=38 CPP girls).
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested LH and FSH peak timing and diagnostic performance (sensitivity/specificity) at each sampling time point
result LH peaked at 30 min but 30-min-only missed 2 cases; 60, 90, 120 min showed identical diagnostic performance; 60-min sampling non-inferior to full protocol. 146/209 (69.9%) diagnosed CPP.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
OpenNCT014577032010 · n=62 · University of Colorado, Denver Obesity
tested Changes in Luteinizing Hormone (LH) Pulse Amplitude (Aim 1)
Non-randomised; effect size cannot be separated from placebo.
Diagnostic & mechanistic studies
tested Peak LH response after IV gonadorelin stimulation test
result Peak LH after IV gonadorelin (FACTREL) 19.0–56.1 mIU/ml; LH % responses 217–1100%, confirming sufficient gonadotropin secretion; isolated GHD identified as sole cause of primary amenorrhea.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested LH response to GnRH (threshold 12 IU/L); serum testosterone response to HCG for diagnostic classification
result GnRH LH threshold ≥12 IU/L correctly classified 34/37 CDP and all 9 HH; 3 CDP patients misclassified; single HCG 15 IU/kg injection deemed more discriminatory and cost-effective.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested effectiveness and safety of gonadorelin analogues for breast pain
result Systematic review of 24 RCTs/observational studies covering 19 interventions including gonadorelin analogues; no specific efficacy or safety data reported for gonadorelin in the abstract.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested overall survival, all-cause mortality, disease-specific mortality, adverse effects
result RT + gonadorelin agonist: 8–10 fewer deaths/100 pts at 7–10 yr. Agonist + flutamide 6 mo before RT: 10-yr mortality 29% vs 43%. ≥3 yr suppression after RT: 10–18 fewer deaths/100 pts over 10–15 yr.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested peak LH and LH/FSH ratio after GnRH stimulation
result Obese girls had lower peak LH (median 6.2 mIU/mL) vs overweight (8.5) and normal-weight (9.1, P<0.001); LH/FSH ratio also lower in obese (0.6 vs 0.8).
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested Indication: endometriosis
result Systematic review comparing dienogest vs gonadorelin analogues for endometriosis; no outcome data for gonadorelin arm reported in abstract.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested severe anaphylaxis with loss of consciousness and tonic seizures within 3 min of IV administration; recovered within 30 min
result Loss of consciousness and tonic seizures within 3 min of IV gonadorelin acetate; treated with epinephrine, diphenhydramine, and fluids; vital signs recovered within 30 min.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested LH and FSH levels at 0, 30, 60, 120 min post-GnRH; ROC-derived cut-offs for HH diagnosis
result Peak LH <9.74 IU/L: 80% sensitivity, 86.4% specificity for HH in males. Basal LH <0.85 IU/L: 80% sens, 75% spec in females. Test sufficient in males, unnecessary in females.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested Development of IgE-mediated wheal-and-flare hypersensitivity at infusion pump injection sites; treatment discontinued
result Patient developed wheal-and-flare at injection sites during long-term LHRH infusion. RAST negative for IgE-LHRH; RIA positive for IgE anti-LHRH (max binding 1:10). Concluded IgE-mediated hypersensitivity.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested serum LH, FSH, E2 levels; menstrual bleeding induction; pregnancy
result After 1 week: LH 2.2→5.4 U/L (P=0.028), E2 58→260 pmol/L (P=0.011); 4/5 patients had menses at 35–55 days; 2 natural pregnancies reported.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested peak LH and FSH levels after gonadorelin stimulation test
result Overweight girls had lower peak LH (8.95 vs 11.97 U/L, P<0.01) and FSH (9.60 vs 11.17 U/L, P=0.04); overweight negatively associated with peak LH (OR 0.89, 95% CI 0.81–0.98).
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested Serum FSH and LH at T0, T1 (30 min), T2 (45 min) post-injection, stratified by FSHB-211 genotype
result FSHB-211 G>T SNP reduced FSH and increased LH pituitary response to 100 µg gonadorelin i.v.; T allele carriers showed impaired FSH output consistent with reduced testicular volume and sperm count.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested LH peak response to gonadorelin test correlated with psychoanalytical profiles
result Patients split into 4 groups by gestagen test and LH peak (<8, 8–20, 20–37 ng/ml); lower LH responders showed greater psychosomatic/somatic symptoms and retentive personality structures.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested Peak LH response for CPP diagnosis
result All CPP girls in gonadorelin-test group showed peak LH response 30–60 min after IV gonadorelin injection; served as gold-standard reference vs triptorelin 120/180 min sampling.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested Peak LH concentration and CPP diagnosis rate
result ~20% gonadorelin vs 24% triptorelin diagnosed CPP (P=0.52); peak LH 8.15 vs 9.73 mIU/mL at 60 min; triptorelin non-inferior for CPP diagnosis.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested ovulation rate and pregnancy rate per cycle
result Ovulation in 12/15 cycles (80%); 4 singleton pregnancies; corrected pregnancy rate 40% (4/10 cycles) in 6 patients (67%); mean 12.2 days therapy/cycle.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested FSH, LH, testosterone levels; genital/secondary sexual development; spermatogenesis; fertility; adverse events
result FSH/LH/T significantly elevated (P<0.01); spermatogenesis in 73.3% (33/45), mean sperm conc 18.2±6.2×10⁶/ml; 8 natural pregnancies, 3 via ART.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Treatment studies
tested penile length, testicular volume, inhibin B, anti-Müllerian hormone, cryptorchidism descent, safety
result Penile length 1.27→2.43 cm; testicular volume ~0.08→0.20-0.22 mL; inhibin B 53.86→218.46 pg/mL; AMH 34.25→72.84 ng/mL; 6/13 testes descended; no adverse reactions.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested diagnostic accuracy for CPP via stimulated LH peak
result Gonadorelin IV: LH cut-off 4.7 IU/L → sensitivity 100%, specificity 87%, AUC 0.982; triptorelin comparable (cut-off 7.14 IU/L, sens 94%, spec 96%, AUC 0.985).
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested LH response timing and peak level for CPP diagnosis
result Similar peak LH: gonadorelin 13.9±12.8 vs triptorelin 12.8±12.1 IU/L; gonadorelin peaked at 30 min, all CPP identified by 60 min; triptorelin peaked later, 31.5% at 120 min.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Diagnostic & mechanistic studies
tested serum LH response to gonadorelin stimulation and basal FSH levels
result Elevated basal FSH and LH hyperresponse to gonadorelin (Factrel) stimulation in postpubertal males, suggesting partial primary hypogonadism; micropenis persisted despite normal virilization.
Published human study (PubMed / Europe PMC), extracted from its abstract — not a CT.gov-registered trial.
Preclinical / mechanistic research
tested rat · The effects of experimental hyperinsulinemia on steroid secretion, ovarian [125I]insulin binding, and ovarian [125I]insulin-like growth-factor I binding in the rat.
result Preclinical publication captured from PubMed/Europe PMC; effect details require paper-level extraction.
Preclinical / mechanistic research
tested rat · Comprehensive analysis of differences in N6-methyladenosine RNA methylomes in the rat adenohypophysis after GnRH treatment.
result Preclinical publication captured from PubMed/Europe PMC; effect details require paper-level extraction.
Preclinical / mechanistic research
tested canine · Effect of the GnRH stimulation test on Canine Prostatic-Specific Esterase (CPSE).
result Preclinical publication captured from PubMed/Europe PMC; effect details require paper-level extraction.
Preclinical / mechanistic research
tested rabbit · Effects of Kisspeptin on rabbit ovulation: a comprehensive study of ovulatory, endocrine and histological response.
result Preclinical publication captured from PubMed/Europe PMC; effect details require paper-level extraction.
Preclinical / mechanistic research
tested Postovulatory treatment with GnRH on day 5 reduces pregnancy loss in recipients receiving an in vitro produced expanded blastocyst.
result In-vitro publication captured from PubMed/Europe PMC; assay details require paper-level extraction.
Preclinical / mechanistic research
tested Spray congealed solid lipid microparticles as a sustained release delivery system for Gonadorelin [6-D-Phe]: Production, optimization and in vitro release behavior.
result In-vitro publication captured from PubMed/Europe PMC; assay details require paper-level extraction.