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Effect of a Food for Special Medical Purposes on Muscle Mass Preservation During GLP-1 RAs Weight Loss Treatment

Evaluating the Effect of a Food for Special Medical Purposes Containing Essential Amino Acids (EAA), Carnitine, Arginine, and Sucrosomial Minerals on the Preservation of Appendicular Skeletal Muscle Mass (ASMM) During a Weight Loss Program With GLP-1 Receptor Agonists

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07393360
Acronym
MYO-PRESERVE
Enrollment
144
Registered
2026-02-06
Start date
2025-12-11
Completion date
2026-12-01
Last updated
2026-03-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity & Overweight

Keywords

Weight Loss, Muscle Mass Preservation, Obesity, Body Composition, BIVA

Brief summary

This study evaluates whether a Food for Special Medical Purposes (FSMP) can help to preserve appendicular skeletal muscle mass (ASMM) in adults undergoing weight loss treatment with GLP-1 receptor agonists or dual GIP/GLP-1 receptor agonists. Participants will receive the FSMP or a matching placebo for 24 weeks while continuing standard GLP-1-based therapy. ASMM will be measured using Bioelectrical Impedance Vector Analysis (BIVA).

Detailed description

This randomized, double-blind, placebo-controlled investigates whether a Food for Special Medical Purposes (FSMP) can help preserve appendicular skeletal muscle mass (ASMM) in adults undergoing weight loss treatment with GLP-1 receptor agonists or dual GIP/GLP-1 receptor agonists. Eligible participants are adults with obesity or overweight with comorbidities who are initiating GLP-1-based therapy as part of standard clinical management. Participants are randomized in a 1:1 ratio to receive either the FSMP or a matching placebo for 24 weeks, in addition to their ongoing GLP-1 RA or dual GIP/GLP-1 RA therapy. Study visits occur at baseline, 8 weeks, 16 weeks, and 24 weeks. This trial aims to determine whether targeted nutritional support can mitigate the loss of lean mass commonly observed during pharmacologically assisted weight loss, thereby improving functional outcomes and overall patient well-being.

Interventions

DIETARY_SUPPLEMENTMyosave®

A Food for Special Medical Purposes. Two sachets per day (morning and afternoon), taken on an empty stomach for 24 weeks.

OTHERPlacebo

Maching in appearance, taste, and dosing schedule to Myosave®. Two sachets per day for 24 weeks

Sponsors

Pharmanutra S.p.a.
Lead SponsorINDUSTRY
Sintesi Research Srl
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Active product and placebo are indistinguishable in appearance, packaging, and administration schedule.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥18 years and ≤ 65 years old; * BMI ≥ 30 Kg/m2 and ≤45 kg/m2 * BMI from 27 kg/m2 to 30 Kg/m2 with at least one associated co-morbidity related to overweight \[e.g. dysglycemia (pre-diabetes and/or metabolic syndrome), hypertension, dyslipidemia, obstructive sleep apnea syndrome (OSAS\], or cardiovascular disease\] * Starting to use a GLP-1 RAs (liraglutide, semaglutide) or dual GIP and GLP-1 RAs (tirzepatide) for weight reduction; patient can be enrolled if they start the treatment at the time of enrollment or up to 2 weeks * Diet composition adjusted to provide 0.9-1.1 g/Kg ideal body weight proteins * Signed informed consent

Exclusion criteria

* Type I and Type II diabetes; patients with pre-diabetes and/or metabolic syndrome and assuming Metformin and SGLT-2 inhibitors can be enrolled * Monogenic obesity (Subjects with a known diagnosis of monogenic obesity, including but not limited to pathogenic mutations in LEP, LEPR, MC4R, POMC, PCSK1, or other genes known to cause monogenic forms of early-onset or syndromic obesity) * Reduced kidney function, defined as eGFR \< 60 mL/min/1.73 m², calculated using the CKD-EPI equation (see Appendix 1) * Oncologic patients in active treatments * Hypersensitivity to any of the constituents of the study product * Pregnancy * Breastfeeding * Use of meal replacements for a diet enriched with aminoacids and/or HMB * Use of food supplements containing aminoacids and/or HMB; patients can be included in the study if they undergo a washout period of at least 15 days

Design outcomes

Primary

MeasureTime frameDescription
Change in Appendicular Skeletal Muscle Mass (ASMM)Baseline, Week 8, Week 16, Week 24ASMM will be assessed using Bioelectrical Impedance Vector Analysis (BIVA). The primary endpoint is the change in ASMM from baseline to Week 24 to determine whether the Food for Special Medical Purposes (FSMP) preserves skeletal muscle mass compared with placebo.

Secondary

MeasureTime frameDescription
Handgrip StrengthBaseline, Week 8, Week 16, Week 24Handgrip strength will be measured with a calibrated dynamometer on both dominant and non-dominant hands to evaluate changes in muscle function.
Change in Fat-Free Mass (FFM)Baseline, Week 8, Week 16, Week 24Change in Fat-Free Mass measured using Bioelectrical Impedance Vector Analysis (BIVA). Continuous variable reported according to device output.
Change in Fat Mass (FM)Baseline, Week 8, Week 16, Week 24Change in Fat Mass measured using Bioelectrical Impedance Vector Analysis (BIVA). Continuous variable reported according to device output.
Change in Health-Related Quality of Life (Short Form-36 Health Survey, SF-36)Baseline, Week 8, Week 16, Week 24The Short Form-36 Health Survey (SF-36) assesses physical and mental health-related quality of life. The scale consists of 36 items scored into 8 domains. Each domain score ranges from 0 to 100, where higher scores indicate better health status. Domains include: Physical Functioning, Role Physical, Bodily Pain, General Health, Vitality, Social Functioning, Role Emotional, and Mental Health.
Change in Body Weight (kg)Baseline to Week 24Change in body weight measured in kilograms from baseline to Week 24. Continuous variable reported according to standard clinical procedures.

Countries

Italy

Contacts

CONTACTMaria Sole Rossato
ms.rossato@pharmanutra.it+390507846500

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026