Completed NA INTERVENTIONAL 3-arm NCT03753321

Whey and Soy Protein Supplementation in Football Players

Comparison of the Effect of Whey and Soy Protein Supplementation on Muscle Damage Markers and Performance After a Speed Endurance Training Protocol in Football Players

Sponsor: University of Thessaly

Conditions Athletic Performance Muscle Damage Skeletal Muscle Damage

Interventions Placebo (maltodextrin) Soy protein Whey protein

Updated 8 times since 2018 Last updated: Nov 23, 2020 Started: Nov 8, 2018 Primary completion: Jan 20, 2019 Completion: Feb 20, 2019

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This NA trial investigates Athletic Performance and Muscle Damage and is currently completed. University of Thessaly leads this study, which shows 8 recorded versions since 2018 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

8 versions recorded

Sep 2025 — Present [monthly]

Completed NA
Sep 2024 — Sep 2025 [monthly]

Completed NA
Jul 2024 — Sep 2024 [monthly]

Completed NA
Jan 2021 — Jul 2024 [monthly]

Completed NA
Dec 2020 — Jan 2021 [monthly]

Completed NA

▶ Show 3 earlier versions

May 2019 — Dec 2020 [monthly]

Completed NA

Status: Recruiting → Completed
Feb 2019 — May 2019 [monthly]

Recruiting NA
Dec 2018 — Feb 2019 [monthly]

Recruiting NA

First recorded

Nov 2018

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

University of Thessaly

Data source: University of Thessaly

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Trikala, Greece