Vitamin D Supplementation in Obese Children and Adolescents

We are comparing monthly versus daily vitamin D supplements to see which is more effective in raising vitamin D levels in obese children and teens. The study also looks at safety and how well participants follow the treatment.

What diseases are being studied?

Health conditions and diseases that the clinical trial is designed to study and treat.

Who can participate in the clinical trial?

These questions help us understand your situation so we can let the trial team know whether you might be a potential match. This is not a medical evaluation and is not part of the official screening, the study doctor will make the final decision..

What medicines are being studied?

Medicines that are officially approved for use in the European Union and considered safe by EMA. These medicines are already on the market and may be tested for new conditions or populations.

Zymad

What active substances are being studied?

Active substances that are officially approved for use in the European Union and considered safe by EMA. These substances are already on the market and may be tested for new conditions or populations.

Colecalciferol
Colecalciferol is a substance that raises vitamin D levels to support healthy bones and maintain normal calcium balance.

What experimental substances are being tested?

Experimental substances that are being investigated in this clinical trial. These are not yet approved for general use.

Zymad

What similar medicines might you know?

Don't worry if you don't know the medicines tested in the trial. There is a chance you have heard about the similar medicines. Check the list below to see if you are familiar with any of them.

Accrete D3
Accrete D3 One A Day
Acid Alendronic/Colecalciferol Accord

Where is the clinical trial being conducted?

Locations and medical facilities where this clinical trial is currently recruiting or conducting research. Select the locations where you would like to participate.

Loading map...
Hospices Civils De Lyon
Service d'endocrinologie et métabolisme pédiatrique
Bron, France
Hospices Civils De Lyon
Centre d’Investigation Clinique de LYON – CIC 1407
Bron, France
University Hospital Of Clermont-Ferrand
Service d’Endocrinologie Pédiatrique
Clermont-Ferrand, France
Sponsor: Hospices Civils De Lyon
Last updated: Nov 27, 2025

Disclaimer: Parts of this content have been automatically extracted from the EU Clinical Trials registry. While we strive for accuracy, please always contact the trial site or sponsor directly for correct and official information before making any decisions about participation. View on EU Clinical Trials.