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Turner's SyndromePhase 4NCT01066052

Growth Hormone Treatment for the Prevention of Short Stature in Young Girls With Turner Syndrome Before the Age of 4 Years

A Phase 4 study testing r-hGH in people with Turner's Syndrome, run by Merck KGaA, Darmstadt, Germany at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of this study is to evaluate the efficacy and safety of recombinant human growth hormone (r-hGH) treatment in girls with Turner Syndrome under the age of 4 years. After 4 years of treatment, height in these girls will be compared with an historical control group of untreated girls with Turner Syndrome… Read more about this study

Who is it for?
Ages Up to 4 years, women only
Conditions the study is for
Turner's Syndrome
What is being tested?
r-hGH
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
115 participants
Where
1 siteFrance
Study dates
29 Feb 1992to 31 Aug 2010
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 4 years
  • Women only
  • No healthy volunteers
  • Child

Who may be able to join

  • Young girls with turner syndrome proved by karyotype
  • Growth hormone secretion confirmed with ornithin stimulation test
  • Normal glucidic metabolism confirmed by assessment of HbA1c
  • None associated severe pathology which could have impact on growth (i.e. renal insufficiency, decompensated heart failure)
  • No previous or associated treatment with anabolic or sexual steroids
  • Known parental height

Who cannot join

  • Severe associated pathology with impact on growth
  • Concomitant treatment with impact on growth
  • Previous or associated treatment with anabolic steroids
  • Associated growth hormone deficiency

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hôpital Robert Debré

    Paris, 75935

Other trials in France

About this study

Official title: Collaborative Study to Assess the Effects of Treatment With Recombinant Growth Hormone Saizen® in the Prevention of Short Stature in Young Girls Suffering From Turner Syndrome Before the Age of 4 Years. Original French Title: Etude Collaborative Pour apprécier Les Effets du Traitement Par l'Hormone de Croissance Recombinante SAIZEN® Dans le Retard de Croissance de la Fillette Atteinte de Syndrome de Turner Avant l'âge de 4 Ans

The objective of this study is to evaluate the efficacy and safety of recombinant human growth hormone (r-hGH) treatment in girls with Turner Syndrome under the age of 4 years. After 4 years of treatment, height in these girls will be compared with an historical control group of untreated girls with Turner Syndrome, matched for age and height at baseline.

Being tested
r-hGH
Keywords
Growth hormone, Turner syndrome, r-hGH, early treatment
Medical subject headings
Turner Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • r-hGHDrug

    Also called Saizen®

    Subcutaneous administration.

Study groups in NCT01066052
Study groupRoleWhat they receive
r-hGHExperimentalParticipants (girls) will receive r-hGH as a subcutaneous injection administered by a parent in the evening. During Years 1-2, the dose of r-hGH received will depend on participants' baseline height standard deviation score (SDS) relative to the general population standard: participants with a height SDS of -2 standard deviation (SD) or lower will receive 0.05 milligrams per kilogram (mg/kg) per day r-hGH and those with a height SDS between -1 and -2 SD will receive 0.035 mg/kg per day r-hGH. After 2 years of treatment, all participants will receive a fixed dose of 0.05 mg/kg per day for a further 2 years.
Receives: Drug: r-hGH
Historical ControlNo interventionThis arm will include matching (age and height) historical control participants (girls) with turner syndrome, who were born between 1961 and 1990 and were untreated.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Height SDS at Year 4

    Height SDS was calculated as height minus reference mean height divided by standard deviation of the reference population. Height SDS reflects the height relative to a reference population of the same age and gender.

    Measured: Year 4

Secondary outcomes (5)
  1. Number of Participants With Abnormal Glycated Hemoglobin (HbA1c) Levels

    HbA1c develops when hemoglobin, a protein within red blood cells that carries oxygen throughout the body, joins with glucose in the blood, becoming glycated. The higher the level of glucose in the blood, the higher the level of HbA1c is detectable on red blood cells. The normal range for HbA1c is 4 percent (%) to 5.9%. Number of participants, who had abnormal HbA1c levels any time during the assessment, were reported.

    Measured: Baseline up to Year 2

  2. Difference Between Bone Age (BA) and Chronological Age (CA) (BA-CA)

    BA was determined using left wrist and hand X-ray. CA was determined using the date of birth. Difference of BA and CA (BA-CA) was reported.

    Measured: Baseline, Year 1, Year 2

  3. Number of Participants With Anti r-hGH Antibodies

    Measured: Baseline up to Year 2

  4. Number of Participants With Abnormal Insulin-Like Growth Factor 1 (IGF1) Levels

    The normal range for IGF1 levels is 45 to 117 nanogram per milliliter (ng/mL) for girls aged less than (<) 3 years and 80 to 236 ng/mL for girls aged 3 to 6 years. Values outside the normal range were considered abnormal. Number of participants, who had abnormal IGF1 levels any time during the assessment, were reported.

    Measured: Baseline up to Year 2

  5. Number of Participants Who Reached Normal Height at Year 4

    Participants with normal height were those who attained a height which was within +/- 2 height SDS of reference population standard. Height SDS was calculated as height minus reference mean height divided by standard deviation of the reference population. Height SDS reflects the height relative to a reference population of the same age and gender.

    Measured: Year 4

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Feb 2010 (estimated)
  2. Study start29 Feb 1992
  3. Primary completion31 Mar 1999
  4. Study completion31 Aug 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
115 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01066052
Sponsor's protocol ID
GF 5834
Status last verified
Jun 2018
First submitted
5 Feb 2010
Last updated
14 Dec 2018
Data monitoring committee
No

Publications

  • Linglart A, Cabrol S, Berlier P, Stuckens C, Wagner K, de Kerdanet M, Limoni C, Carel JC, Chaussain JL; French Collaborative Young Turner Study Group. Growth hormone treatment before the age of 4 years prevents short stature in young girls with Turner syndrome. Eur J Endocrinol. 2011 Jun;164(6):891-7. doi: 10.1530/EJE-10-1048. Epub 2011 Mar 11.

    PubMed 21398400

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing r-hGH in people with Turner's Syndrome, run by Merck KGaA, Darmstadt, Germany at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Dec 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 14 Dec 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Height SDS at Year 4 (time frame: Year 4). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01066052, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Dec 2018.

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