ClinicalTrials.gg
Active, not recruitingNCT05862779W-3 and WheyUpdated Sep 24, 2026

Effects of Omega-3 and Whey Protein Supplementation on Lean Mass in Older Adults

An interventional study of Placebo Group and Whey Protein + Placebo in Sarcopenia, sponsored by Federal University of Uberlandia. Active, not recruiting at 1 site in Brazil. Open to female participants aged 60 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-24.

Sponsored by Federal University of Uberlandia · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
75
Allocation
Randomized
Ages
60 Years to 80 Years
Sex
Female
01

Study summary

To evaluate the effect of omega-3 supplementation combined with whey protein intake on lean mass, muscle strength, metabolomic and lipidomic profiles, and biomarkers of oxidative stress and inflammation in older adults undergoing resistance exercise. Participants will be randomized into the 4 groups. The placebo group will receive 5 g per day of sunflower oil and 38 g per day of maltodextrin. The omega 3 + placebo group will receive 5 g per day of fish oil and 38 g per day of maltodextrin. The whey protein + placebo group will receive 38g per day of whey and 5g per day of sunflower oil. The omega 3 + whey group will receive 5g per day of fish oil and 38g per day of protein. All will perform the same exercise protocol for 12 weeks.

02

Conditions studied

  • Sarcopenia

Browse trials for

03

In context

Sarcopenia

1,329 studies on the registry are indexed under Sarcopenia; 420 are open to participants now.

This study's enrollment of 75 is above the median of 60 across 855 interventional studies indexed under Sarcopenia.

Browse Sarcopenia studies →

Lead sponsor

Federal University of Uberlandia is the lead sponsor of 61 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years to 80 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • women (at least 1 year of menstrual interruption, self-reported);
  • To be able to practice strength exercises;
  • To be able to carry out supplementation;
  • Do not present physical, orthopedic or cardiovascular complications that prevent the performance of physical exercises;
  • No history of stroke or acute myocardial infarction;
  • Not being a smoker and/or alcoholic;
  • Do not perform hormone replacement therapy;
  • Do not use anti-inflammatory drugs;
  • To have normal kidney function;
  • To submit a medical certificate of health that proves that the individual is able to perform exercises.

Exclusion criteria

Exclusion Criteria:

  • Do not provide the necessary information for the development of the study;
  • Individuals with diseases previously diagnosed and undergoing treatment, such as type II diabetes mellitus, cancer, rheumatoid arthritis, cardiovascular, and kidney and/or liver diseases.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
75 participants (actual)

Study arms

  • Placebo comparator
    Placebo Group

    Group supplemented with maltodextrin (38g/day) and sunflower oil (5g/day). All groups will undergo a training program with strength exercises for 12 weeks

    Dietary Supplement: Placebo Group

  • Experimental
    Whey Protein + Placebo

    Group supplemented with isolated whey protein (38g/day) and sunflower oil (5g/day). All groups will undergo a training program with strength exercises for 12 weeks.

    Dietary Supplement: Whey Protein + Placebo

  • Experimental
    Omega 3 + Placebo

    Group supplemented with omega-3 (5g/day) and maltodextrin (38g/day). All groups will undergo a training program with strength exercises for 12 weeks.

    Dietary Supplement: Omega 3 + Placebo

  • Experimental
    Omega 3 + Whey Protein

    Group supplemented with omega-3 (5g/day) and whey protein (38g/day). All groups will undergo a training program with strength exercises for 12 weeks.

    Dietary Supplement: Omega 3 + Whey Protein

Interventions

  • Dietary supplementPlacebo Group

    The placebo group will receive 5 g per day of sunflower oil and 38 g per day of maltodextrin.

  • Dietary supplementWhey Protein + Placebo

    The whey protein + placebo group will receive 38g per day of whey and 5g per day of sunflower oil.

  • Dietary supplementOmega 3 + Placebo

    The omega 3 + placebo group will receive 5 g per day of fish oil and 38 g per day of maltodextrin.

  • Dietary supplementOmega 3 + Whey Protein

    Drug pages: Omega-3 fatty acid · Whey Proteins

    The omega 3 + whey group will receive 5g per day of fish oil and 38g per day of protein.

06

What researchers measure

Primary outcomes

  1. Changes in lean mass (kg) using ultrasound and dual-energy X-ray absorptiometry (DXA) in postmenopausal women

    Time frame: up to 12 weeks

Secondary outcomes

  1. Changes in strength (kg) using dynamometer in postmenopausal women

    Time frame: up to 12 weeks

Other outcomes

  1. Evaluation of oxidative stress and inflammation biomarkers

    Oxidative stress biomarkers will be assessed in blood and saliva, whereas inflammatory biomarkers will be assessed in blood only. Blood and saliva samples will be collected before and after the intervention. After an overnight fast, 20 mL of blood will be collected into heparinized tubes. A portion of the blood will be used for whole-blood stimulation with or without 10 ng/mL lipopolysaccharide (LPS; Escherichia coli O111) for 6 hours at 37°C in 5% CO₂. Following incubation, the supernatant will be collected for the assessment of inflammatory cytokines by ELISA. The remaining blood will be centrifuged at 4°C and 3,200 rpm for 10 minutes, aliquoted, and stored at -80°C until analysis of oxidative stress biomarkers.

    Time frame: up to 12 weeks

  2. Metabolomics and lipidomics analyses

    For metabolomic analysis, 100 μL of serum will be extracted with spectroscopic-grade methanol, homogenized, centrifuged, concentrated under vacuum, reconstituted in methanol, and filtered through a 0.22-μm filter. For lipidomic analysis, 100 μL of serum will be extracted using dichloromethane and methanol. The organic phase will be collected, concentrated under vacuum at 40°C, reconstituted in dichloromethane, and transferred to analytical vials. Metabolomic and lipidomic profiles will be analyzed using liquid chromatography coupled with high-resolution mass spectrometry (LC-MS) and gas chromatography coupled with mass spectrometry (GC-MS). Metabolites and lipids will be identified based on accurate mass, mass spectral data, and comparison with databases and published literature.

    Time frame: up to 12 weeks

07

Study locations

1 site
  • Federal University of Uberlandia
    Uberlândia, Minas Gerais 38400-902, Brazil
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jul 2024 (actual). Primary completion is estimated for Jan 2027, 29 months after the start.

Of 492 non-industry interventional studies with no phase under Sarcopenia, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 34. This study's planned 29 months is above that.

Counting every sponsor, half of 503 studies reached it within 18 months; a quarter within 8 and three quarters within 34.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 10, 2023
First posted
May 17, 2023
StartActual
Jul 30, 2024
Primary completionEst.
Jan 1, 2027
CompletionEst.
Jan 1, 2027
Last update
Sep 24, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 24, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05862779
Lead sponsor
Federal University of Uberlandia
Responsible party
Erick Prado de Oliveira (Assistant professor, Federal University of Uberlandia) — Principal investigator
First posted
May 17, 2023
Start date
Jul 30, 2024
Primary completion
Jan 1, 2027 (estimated)
Completion
Jan 1, 2027 (estimated)
Last update
Sep 24, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drugs tested here: Omega-3 fatty acid · Whey Proteins

Start the discussion