AzTrials
AzTrials

Idiopathic Short StaturePhase 4ZomaTripNCT00840944

A 4 Year Combination Therapy of Growth Hormone and (GnRH) Agonist in Children With a Short Predicted Height

A Phase 4 study testing somatropin and triptorelin in people with Idiopathic Short Stature, run by Belgian Study Group for Pediatric Endocrinology at 6 sites in Belgium.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

Estrogens are responsible for the disappearance of growth cartilage in the long bones at the end of the pubertal growth spurt both in boys and in girls. It is therefore hypothesized that stopping pubertal development and hence estrogen production, will prolong and increase the pubertal growth spurt, especially when… Read more about this study

Who is it for?
Ages 7 to 15 years
Conditions the study is for
Idiopathic Short Stature
What is being tested?
somatropin and triptorelin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
44 participants
Where
6 sitesBelgium
Study dates
Jan 2008to Apr 2024
Phase
Phase 4
Are there results?
None posted in the registry

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 7 to 15 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Adult height prediction below -2.5 SD : 151 cm for girls and 164 cm for boys based on the vlaamse groeicurve 2004 (vub.ac.be/groeicurven)
  • Pubertal: breast development at least M2 for girls and at least 4 ml of testicular volume for boys
  • Bone age >10 years but < 12 years for girls and > 11 but < 13 years for boys
  • Signed informed consent

Who cannot join

  • Adopted children ( different genetic background, lack of data on birth parameters and parents)
  • Bone dysplasia or sitting height/ total height > 2 SDS on standards by Gerver et al (see appendix)
  • Chronic use of glucocorticoids
  • Previous growth promoting therapy such as GH, sex steroids, oxandrolone,
  • Known GH deficiency
  • Chronic infectious disease
Show all 15Show fewer
  • Active rheumatic disease
  • Previously diagnosed or currently suspected malignancy
  • Sex steroid therapy
  • Diabetes mellitus
  • Renal insufficiency (serum creatinine > 1.5 mg/dl)
  • Hepatic disease ( liver test > 4 fold upper limit of normality)
  • Current congestive heart failure
  • Inability to follow the study protocol
  • Treatment with a non registered drug during the last 30 days before the moment of inclusion.

Trial locations and contacts

6 sites in 1 country.

6 sites in 1 country

Belgium6 sites
  • Hopital Universitaire Reine Fabiola (HUDERF)

    Brussels, 1050

  • Kinderziekenhuis UZ Brussel

    Brussels, 1090

  • Antwerp University Hospital

    Edegem, Antwerpen, 2650

  • Kinderziekenhuis UGent

    Ghent, Oost Vlaanderen, 9000

  • Jessah Ziekenhuis

    Hasselt, Limburg, 3000

  • CHU ND-des Bruyères

    Liège, 4030

Other trials in Belgium

About this study

Official title: Efficacy and Safety of a 4 Year Combination Therapy of Growth Hormone and Gonadotropin- Releasing Hormone Agonist in Children With a Short Predicted Height.

Estrogens are responsible for the disappearance of growth cartilage in the long bones at the end of the pubertal growth spurt both in boys and in girls. It is therefore hypothesized that stopping pubertal development and hence estrogen production, will prolong and increase the pubertal growth spurt, especially when growth hormone is given concommitantly.

Boys in early puberty, with a bone age between 11 and 13 years and a predicted adult height below 163 cm or girls in early puberty with a bone age between 10 and 12 years and a predicted height under 151 cm will be treated with triptorelin 3.75 mg and Zomacton growth hormone for 4 years.

Being tested
somatropin, triptorelin
Keywords
gonadotropin releasing hormone agonist, growth hormone, final height, bone density, puberty

What participants receive

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

  • somatropinDrug

    Also called growth hormone, zomacton

    somatropin 0.050 mg/kg/day

  • triptorelinDrug

    Also called decapeptyl

    triptorelin 3.75 mg each month

Study groups in NCT00840944
Study groupRoleWhat they receive
ZOMATRIPExperimentalGnRH agonist triptorelin plus somatropin
Receives: Drug: somatropin; Drug: triptorelin

What is being measured

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

  1. height

    Difference between predicted height at start of treatment and adult height

    Measured: 6 - 8 years

Secondary outcomes (1)
  1. bone density

    Bone density SDS measured by DEXA

    Measured: 6 - 8 years

Timeline

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

  1. First posted11 Feb 2009 (estimated)
  2. Study startJan 2008
  3. Primary completionJan 2024 (estimated)
  4. Study completionApr 2024 (estimated)

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
44 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00840944
Sponsor's protocol ID
EUDRACT 2007-003247-70
Acronym
ZomaTrip
Status last verified
Jul 2023
First submitted
10 Feb 2009
Last updated
28 Jul 2023
Results posted
No
Data monitoring committee
No

Publications

  • Dotremont H, France A, Heinrichs C, Tenoutasse S, Brachet C, Cools M, De Waele K, Massa G, Lebrethon MC, Gies I, Van Besien J, Derycke C, Ziraldo M, De Schepper J, Beauloye V, Verhulst S, Rooman R, den Brinker M. Efficacy and safety of a 4-year combination therapy of growth hormone and gonadotropin-releasing hormone analogue in pubertal girls with short predicted adult height. Front Endocrinol (Lausanne). 2023 Mar 17;14:1113750. doi: 10.3389/fendo.2023.1113750. eCollection 2023.

    PubMed 37008942

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing somatropin and triptorelin in people with Idiopathic Short Stature, run by Belgian Study Group for Pediatric Endocrinology at 6 sites in Belgium.

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 4 inclusion and 15 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: status not confirmed, as of the sponsor's last update on 28 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in Belgium. 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?

Results are not available in the source record.

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 (time frame: 6 - 8 years). 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 NCT00840944, 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 28 Jul 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in