Clinical trial Recruiting at 1 site Interventional Ages 45 to 65

Effects of a diet with essential amino acids on weight loss in obese patients

Official title: Study on the Metabolic Effects of a Diet Replaced With Essential Amino Acids and Carboxylic Acids (EAA-AC) in Patients With Severe Obesity

Run by Istituto Auxologico Italiano · NCT06309563 · Data updated 2026-11-12

This study is testing if adding essential amino acids to a low-calorie diet can help obese people lose weight while keeping their muscle mass.

More Weight Loss trials

Quick facts

Study typeInterventional
Ages45 Years to 65 Years
SexAll
Enrollment60 (estimated)
SponsorIstituto Auxologico Italiano
Academic / other
Locations1 site (Oggebbio, Verbania)
StatusRecruiting
StartedAugust 30, 2023
Main results expectedDecember 31, 2026
Study endsDecember 31, 2026
Registry record updatedMarch 31, 2026
Trial IDNCT06309563 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 45 to 65 with a BMI greater than 35 kg/m² suffering from high-grade obesity.

Probably not a fit

Patients with type 2 diabetes, renal failure, heart failure, liver cirrhosis, or other significant health issues may not benefit from this study.

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

What this trial studies

This study evaluates the effectiveness of a low-calorie, low-protein diet supplemented with essential amino acids (EAA) in patients with high-grade obesity. Participants aged 45 to 65 will be randomly assigned to either an EAA supplement group or a placebo group while following the diet. The primary outcomes measured after two weeks will include weight loss and maintenance of muscle mass. The study aims to determine if the EAA supplementation enhances the weight loss effects compared to a standard diet.

Why it matters

Potential benefit: If successful, this approach could improve weight loss outcomes and muscle preservation in obese patients.

How similar studies have gone: Previous studies have shown positive effects of amino acid supplementation in weight loss, suggesting potential success for this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

\- Obesity (BMI \>35kg/m2)

Exclusion Criteria:

* Type 2 diabetes mellitus
* Renal failure
* Heart failure (New York Heart Association NYHA, class IV)
* Liver cirrhosis
* Neoplasms
* Muscular or non-autonomic pathologies
* Neurological-neurodegenerative pathologies
* Cognitive decline
* Non-menopausal women.
* Patients who have undergone bariatric surgery in the previous 12 months
* Patients on pharmacological treatment for weight loss in the last three weeks
* Patients using vitamin and amino acid supplements in the last three weeks
* Patients on hormone therapy (e.g. L-thyroxine, testosterone).

Where it's running

  • Istituto Auxologico Italiano, Site Piancavallo
    Oggebbio, Verbania, Italy
    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.