Creatine supplementation for treating homocystinuria

Creatine Supplementation for CBS-related Homocystinuria: a Proof-of-concept Study in Healthy Adults

Not applicable Interventional University of British Columbia · NCT06495567

This study is testing if taking creatine can help lower homocysteine levels in healthy adult men who have a rare condition called homocystinuria.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment6 (estimated)
Ages19 Years to 40 Years
SexMale
SponsorUniversity of British Columbia Academic / other
Locations1 site (Vancouver, British Columbia)
Trial IDNCT06495567 on ClinicalTrials.gov

What this trial studies

This study aims to explore the effects of creatine supplementation on reducing homocysteine levels in healthy adult men. Homocystinuria is a rare metabolic disorder caused by the inability to break down homocysteine, leading to toxic accumulation. The researchers will administer high doses of creatine and utilize stable isotope techniques to measure changes in methionine turnover and homocysteine production. The ultimate goal is to assess whether creatine could serve as an alternative treatment for individuals with homocystinuria.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy adult men with a normal body weight and no concurrent illnesses.

Not a fit: Patients with metabolic, neurological, genetic, or immune disorders, as well as those with food allergies or who are following non-traditional diets, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new treatment option for patients with homocystinuria, potentially improving their quality of life.

How similar studies have performed: While this approach is novel in the context of homocystinuria, stable isotope techniques have been successfully used in other metabolic studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Cis-male
* Men who are classified as normal body weight and BMI (18.5-25kg/m2)
* Free of any concurrent illness (cold, flu, vomiting etc.)
* Not be claustrophobic (we will place a clear hood, which can easily be removed, over your head for approximately 20 min to measure your energy expenditure)
* Not be enrolled in any other research studies (as this may affect our study results)

Exclusion Criteria:

* Men not in good health or have a metabolic, neurological, genetic, or immune disorder, including diabetes, hypoglycemia, hypertension and current or past history of kidney disease
* Men who have food allergies/sensitivities/intolerances to egg, corn, diary etc.
* Men who have current or recent past history of ingesting creatine supplements
* Men who are smokers
* Men who are following a non-traditional dietary pattern (e.g. Keto diet, Atkins diet, paleo diet, intermittent fasting, strict vegan, calorie restricted diet etc.)

Where this trial is running

Vancouver, British Columbia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Homocystinuria
Last reviewed 2026-06-13 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.