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GH and Cardiovascular Risk Factors

NCT01877512 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 32

Last updated 2014-05-07

No results posted yet for this study

Summary

Rationale: Abnormally low and high levels of insulin-like growth factor-I (IGF-I) are both associated with increased metabolic risk. Since (U-shaped) associations of IGF-I, within the normal range, have also been found with cardiovascular risk factors and disease in the general population, it would be interesting to investigate if this association can also be found in growth hormone deficient (GHD) adults treated with Growth Hormone (GH). This could be of interest for endocrinologists prescribing GH in clinical practice because strict dosing may become even more important. Next to that, scientific evidence for clinical practice is wanted.

Objective: Next to cardiovascular risk factors (main objectives: body composition and lipid profile; secondary objectives: remainder) we investigate the effect on glucose metabolism, physical performance, and neuropsychological functioning of different levels of IGF-I in GH treated GHD men and women.

Study design: Open-label randomized trial.

Study population: At least 32 subjects, both childhood as adult onset GHD men and women, receiving GH treatment for at least one year, with an age between 20 and 65 years.

Intervention: At entry subjects are already receiving GH treatment according to general clinical practice, and are expected to demonstrate an IGF-I concentration of 0 - 1 SD score (SDS) (normal dose). The group of men and group of women will be randomized to receive either a decrease of their regular dose of GH treatment (IGF-I target level of -2 - -1 SDS) (low dose), or an increase of their regular dose, (IGF-I target level of 1 - 2 SDS) (high dose) for at least 24 weeks.

Conditions

Interventions

DRUG

Change in daily dosage of Growth Hormone

Sponsors & Collaborators

  • Amsterdam UMC, location VUmc

    lead OTHER

Principal Investigators

  • Madeleine L. Drent, MD PhD · Amsterdam UMC, location VUmc

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-05-31
Primary Completion
2014-04-30
Completion
2014-04-30

Countries

  • Netherlands

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01877512 on ClinicalTrials.gov