Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• serum kisspeptin levels (diagnostic_test) — also listed as: The serum level of LH, FSH, prolactin, Testosterone (in boys), estradiol (in girls)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Sohag University Hospital
  Sohag, Egypt
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• kisspeptin 112-121 (drug) — also listed as: metastin 45-54
• GnRH (drug) — also listed as: gonadotropin-releasing hormone

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Massachusetts General Hospital
  Boston, Massachusetts, United States
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• Kisspeptin 1.6nmol/kg (drug) — also listed as: kisspeptin-54
• Kisspeptin 3.2nmol/kg (drug) — also listed as: kisspeptin-54
• Kisspeptin 6.4nmol/kg (drug) — also listed as: kisspeptin-54
• Kisspeptin 9.6nmol/kg (drug) — also listed as: kisspeptin-54
• Kisspeptin 12.8nmol/kg (drug) — also listed as: kisspeptin-54
• Kisspeptin 9.6 nmol/kg double (drug) — also listed as: kisspeptin-54
• Kisspeptin 9.6 nmol/kg + saline (drug) — also listed as: kisspeptin-54

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Hammersmith Hospital
  London, United Kingdom
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• ShangHai JIAI Genetics&IVF Institute
  Shanghai, China
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• blood test (diagnostic_test)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Gaziosmanpasa Taksim Education and Research Hospital
  Istanbul, Turkey (Türkiye)
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• Ovarian puncture (procedure)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Instituto de Investigaciones Químicas
  Seville, Spain
  Site recruitment: Not reported
• IVI Sevilla
  Seville, Spain
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• this study was an observational study and no interventions were given to the participants (other)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

The registry does not list facilities in this record. This does not mean the study has no sites.

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• Kisspeptin-10 (biological)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

The registry does not list facilities in this record. This does not mean the study has no sites.

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• Human kisspeptin-10 (metastin 45-54) (biological)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Quaid-i-Azam University
  Islamabad, Pakistan
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• Kisspeptin-10 (metastin 45-54, Calbiochem, Darmstadt, Germany) (biological)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Quaid-i-Azam University
  Islamabad, Pakistan
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• Blood sample (other) — also listed as: Serum Kisspeptin levels

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Bakirkoy Dr Sadi Konuk Teaching and Research Hospital, Department of Obstetrics and Gynecology
  Istanbul, Turkey (Türkiye)
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• TAK-448 (drug)
• TAK-448 Placebo (drug)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Facility not reported
  Boston, Massachusetts, United States
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• TAK-448 (drug)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Facility not reported
  Oxford, Oxfordshire, United Kingdom
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Ganga Care Hospital
  Nagpur, Maharashtra, India
  Site recruitment: Not reported

Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.

• Leuprorelin (drug)
• TAK-448 (drug)

Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.

• Hôpital Edouard Herriot, 5, Place d'Arsonval, Pavillon V - Urologie et chirurgie de la transplantation
  Lyon, France
  Site recruitment: Not reported