ClinicalTrials.gg
Enrolling by invitationNCT06691815Updated Nov 15, 2024

Triptorelin for Early Diagnosis of Hypogonadotrophic Hypogonadism

An interventional study of Triptorelin (GnRH agonists) in Pubertal Delay, Hypogonadism, Hypogonadotropic and Constitutional Delay in Growth and Puberty (CDGP), sponsored by Hospital de Niños R. Gutierrez de Buenos Aires. Enrolling by invitation at 1 site in Argentina. Open to participants aged 13 Years and older. Per ClinicalTrials.gov, last updated 2024-11-15.

Sponsored by Hospital de Niños R. Gutierrez de Buenos Aires · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Registered 2 years 2 months after the study started (first participant enrolled Aug 2022, registered Oct 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
48
Allocation
Not applicable
Ages
13 Years and older
Sex
All
01

Study summary

The goal of this clinical trial is to learn if Triptorelin test works to early diagnose hypogonadotrophic hypogonadism in adolescents. The main questions it aims to answer are:

  • Does gonadotropin and gonadal steroids responses to Triptorelin test be useful to diagnose early hypogonadotrophic hypogonadism? Researchers will compare gonadotrophins and gonadal steroids in response to Triptorelin subucutaneos test with clasiccal GnRH infusion to diagnose hypogonadotrophic hypogonadism.

Participants will performed two test:

  • Triptorelin test (subcutanous)
  • LHRH infusion test
02

Conditions studied

  • Pubertal Delay
  • Hypogonadism, Hypogonadotropic
  • Constitutional Delay in Growth and Puberty (CDGP)

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Keywords

  • Hypogonadism, hypogonadotropic
  • Constitutional Delay in Growth and Puberty
  • Pubertal Delay
  • GnRH agonist test
  • Gondotropins
  • gonadal steroids
03

In context

Hypogonadism

320 studies on the registry are indexed under Hypogonadism; 39 are open to participants now.

This study's planned enrollment of 48 is close to the median of 50 across 243 interventional studies indexed under Hypogonadism.

Browse Hypogonadism studies →

Lead sponsor

Hospital de Niños R. Gutierrez de Buenos Aires is the lead sponsor of 15 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
13 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female patients presenting with Tanner breast stage 1 or 2 at age ≥ 13 years or male patients with testicular volume \< 5 cc at age ≥ 13.5 years, or who have had pubertal changes but have arrested pubertal development for a period of one year. Female patients presenting with primary amenorrhea (absence of menarche at age 15) > 4 years after the onset of puberty or secondary amenorrhea > 6 months with no other apparent cause (having ruled out other hormonal disorders such as premature ovarian failure, hypothyroidism, hyperprolactinemia, non-classical congenital adrenal hyperplasia, and polycystic ovary syndrome) may also be included. Patients with or without olfactory disorders, and with or without a previous diagnosis of other pituitary deficiencies will be included. In the case of a history of CNS tumor pathology, inclusion in this study will be considered only if the patient is in remission from the oncological disease and if they have received CNS radiotherapy, at least one year has passed since the beginning of the treatment.

If patients have started HRT, they may be included as long as they stop taking it for two half-lives of the compound used, therefore a 2-month free period is necessary for oral tablets or patches and 3 months for monthly testosterone injections or 7 months for testosterone undecanoate injections.

Exclusion criteria

Exclusion Criteria:

  • Patients will be excluded if, due to previous history or relevant clinical history or initial laboratory study, another cause is determined to explain their pubertal disorder: primary hypogonadism (hypergonadotrophic or premature ovarian failure), low weight with \< 18, untreated hypothyroidism, hyperprolactinemia, hyperandrogenism, Cushing\'s syndrome, current prolonged treatment, active systemic disease, CRF or competitive training > 10 hours/week, diabetes mellitus without adequate control or celiac disease without compliance with a gluten-free diet.

Patients who do not provide an updated medical history, who do not provide consent, or whose parents or guardians do not provide assent will be excluded. Patients who are receiving hormone replacement therapy and refuse to stop during the 2-month period for oral tablets or patches and 3 months for monthly testosterone injections or 7 months for quarterly depot injections of testosterone undecanoate will be excluded.

Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
48 participants (estimated)

Study arms

  • Experimental
    Unique arm

    All patients will be randomized only to the order of the test to be performed. All patients included will be performed two tes 1. Triptorelin test. A baseline blood sample will be taken to determine LH, FSH, Estradiol/Testosterone. Then, Triptorelin Acetate 100 ug/m² of body surface area will be administered subcutaneously, maximum dose 0.1 mg (Decapeptyl Daily prefilled syringe of 0.1 mg) Three hours later, a new sample will be taken to determine LH and FSH. The patient may return home and lead a normal life. An appointment will be made the following day to perform the last sample of this test 24 hours after the subcutaneous administration of Triptorelin to the meassurement of LH, FSH, Estradiol/Testosterone, and Inhibin B. 2. GnRH Infusion: LH and FSH in baseline blood samples, 15, 30, 45, 60 and 120 minutes after slow infusion of GnRH. GnRH 0.83 μg/min during the 120 minutes that the study lasts (Luteoliberin 100 μg)

    Diagnostic Test: Triptorelin (GnRH agonists)

Interventions

  • Diagnostic testTriptorelin (GnRH agonists)

    1. Triptorelin test. A baseline blood sample will be taken to determine LH, FSH, Estradiol/Testosterone, AMH, and Inhibin B. Then, Triptorelin Acetate 100 ug/m² of body surface area will be administered subcutaneously, maximum dose 0.1 mg (Decapeptyl Daily prefilled syringe of 0.1 mg for subcutaneous administration. Three hours later, a new sample will be taken to determine LH and FSH. The patient may return home and lead a normal life. An appointment will be made the following day to perform the last sample of this test 24 hours after the subcutaneous administration of Triptorelin Acetate, with the determination of LH, FSH, Estradiol/Testosterone, and Inhibin B. 2. GnRH Infusion: This consists of determining LH and FSH in baseline blood samples, 15, 30, 45, 60 and 120 minutes after slow infusion of GnRH. GnRH 0.83 μg/min during the 120 minutes that the study lasts (Luteoliberin 100 μg)

    Also known as: Triptorelin 0.1 mg subcutaneos test

06

What researchers measure

Primary outcomes

  1. LH-3 hs, FSH-3 hs, Estradiol-24 hs, Testosteron-24 hs

    LH, FSH, Estradiol or Testosterone meassurement in samples 3 hs o 24 hs after triptorelin subcutaneous administration

    Time frame: -To finish spontanous puberty or to get the definitive diagnosis of hypogonadotrophic hypogonadism

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Aug 2022 (actual). Primary completion is estimated for Sep 2026, 49 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 23, 2024
First posted
Nov 15, 2024
StartActual
Aug 1, 2022
Primary completionEst.
Sep 2026
CompletionEst.
Sep 2026
Last update
Nov 15, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06691815
Lead sponsor
Hospital de Niños R. Gutierrez de Buenos Aires
Responsible party
Analía Freire (Principal investigator, Hospital de Niños R. Gutierrez de Buenos Aires) — Principal investigator
First posted
Nov 15, 2024
Start date
Aug 1, 2022
Primary completion
Sep 2026 (estimated)
Completion
Sep 2026 (estimated)
Last update
Nov 15, 2024

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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No contact was published for this record. The registry link below has the sponsor’s details.

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