Clinical trial Recruiting at 1 site Interventional Ages 40 and up

Aerobic plus resistance exercise for adults with type 2 diabetes who take vitamin D

Official title: The Effect of Aerobic and Resistance Training in Patients With Type 2 Diabetes on Vitamin D Treatment: the DIAVITEX Project

Run by University Ramon Llull · NCT06081387 · Data updated 2026-11-12

This trial tests whether adding regular aerobic and resistance exercise improves health measures in adults with type 2 diabetes who are already taking vitamin D.

More Diabetes Mellitus, Type 2 trials

Quick facts

Study typeInterventional
Ages40 Years and up
SexAll
Enrollment80 (estimated)
SponsorUniversity Ramon Llull
Academic / other
Locations1 site (Barcelona)
StatusRecruiting
StartedOctober 1, 2025
Main results expectedJanuary 1, 2026
Study endsDecember 31, 2027
Registry record updatedAugust 6, 2025
Trial IDNCT06081387 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with type 2 diabetes on a stable metformin plus SGLT2 inhibitor regimen who can walk steadily for at least six minutes and either are taking or not taking prescribed vitamin D.

Probably not a fit

Patients using insulin or other glucose-lowering medications, taking multivitamin supplements, pregnant women, or those unable to perform mild-to-moderate exercise are unlikely to benefit from or be eligible for this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The DIAVITEX trial randomizes 80 adults with type 2 diabetes on stable metformin plus SGLT2 inhibitor therapy into four groups: combined training with vitamin D, training alone, vitamin D alone, or neither. Participants will follow a supervised sarcoplasm-stimulating online exercise program three times per week while continuing their usual medications, with clinical measures taken before and after the intervention. The study is double-blind and enrolls patients from participating primary care centers in Barcelona to clarify how exercise interacts with ongoing vitamin D treatment in this population.

Why it matters

Potential benefit: If successful, this could improve blood sugar control, insulin sensitivity, cardiovascular fitness, and muscle strength for people with type 2 diabetes taking vitamin D.

How similar studies have gone: Exercise alone has consistently improved insulin sensitivity and fitness in type 2 diabetes and vitamin D has shown mixed results, but combining exercise with ongoing vitamin D treatment has been little studied and remains inconclusive.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults (females or males) older than 18 years old with a diagnosis of T2D in the clinic database
* Patients who have been taking the combination therapy of metformin + sodium-glucose transport protein 2 inhibitors (iSGLT2), as recommended by the redGDPS 2023, with stable medication for the past 6 months.
* Diabetic patients taking prescribed VitD treatment for at least 6 months (intervention group) and diabetic patients not taking prescribed VitD (control group)
* Patients who signed the informed consent
* Patients capable of performing mild to moderate physical activity (to walk steadily and independently for at least 6 minutes)

Exclusion Criteria:

* Patients taking other medication different than metformin + iSGLT2 (including combinations and insulin)
* Patients taking polyvitaminic supplementation at the inclusion for at least, 1 month before the intervention
* Female subjects who are pregnant
* Patients who did not sign the informed consent

Where it's running

  • CAP Sant Rafael
    Barcelona, Spain
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.