NCT06831656

Brief Summary

Tetraselmis chuii (TetraSOD) is a marine microalgae that has been reported to improve antioxidant responses in human skeletal muscle cells treated with TetraSOD and to improve recovery from muscle damaging exercise in humans supplemented with TetraSOD. However, the effects of TetraSOD supplementation on endurance performance and physiology is less clear. This study assessed the effect of short-term TetraSOD supplementation on endurance performance and physiology in healthy adults.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
15

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 4, 2019

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 19, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 19, 2021

Completed
3.6 years until next milestone

First Submitted

Initial submission to the registry

December 31, 2024

Completed
2 months until next milestone

First Posted

Study publicly available on registry

February 18, 2025

Completed
Last Updated

February 18, 2025

Status Verified

December 1, 2024

Enrollment Period

1.6 years

First QC Date

December 31, 2024

Last Update Submit

February 15, 2025

Conditions

Keywords

MicroalgaeEndurance performance

Outcome Measures

Primary Outcomes (2)

  • Time to exhaustion during a severe-intensity cycle ergometry test continued until exhaustion

    Time to exhaustion during severe-intensity cycle ergometry measured in seconds

    One assessment prior to and 14 days following the placebo supplementation, and one assessment prior to and 14 days following Tetraselmis chuii supplementation

  • End-exercise pulmonary oxygen uptake during a severe-intensity cycle ergometry test continued until exhaustion measured using an online gas analyser

    Pulmonary oxygen uptake at the end of a severe-intensity cycling bout completed until exhaustion to provide an estimate of VO2max measured in L/min using a breath-by-breath gas exchange analyzer and taken as the mean over the final 30 s of the test.

    One assessment prior to and 14 days following the placebo supplementation, and one assessment prior to and 14 days following Tetraselmis chuii supplementation

Secondary Outcomes (2)

  • End-exercise blood lactate concentration during a severe-intensity cycle ergometry test continued until exhaustion

    One assessment prior to and 14 days following the placebo supplementation, and one assessment prior to and 14 days following Tetraselmis chuii supplementation

  • End-exercise rating of perceived exertion using the Borg 6-20 scale during a severe-intensity cycle ergometry test continued until exhaustion

    One assessment prior to and 14 days following the placebo supplementation, and one assessment prior to and 14 days following Tetraselmis chuii supplementation

Study Arms (4)

Placebo-Pre

OTHER

No supplementation prior to undergoing the placebo supplement

Other: Placebo-Pre

Placebo-post

PLACEBO COMPARATOR

Placebo supplementation

Dietary Supplement: Placebo-Post

Tetraselmis chuii-Pre

OTHER

No supplementation prior to undergoing the Tetraselmis chuii supplement

Other: Tetraselmis chuii-Pre

Tetraselmis chuii-Post

ACTIVE COMPARATOR

Tetraselmis chuii supplementation

Dietary Supplement: Tetraselmis chuii-Post

Interventions

No dietary supplementation prior to undergoing the placebo supplement

Placebo-Pre
Placebo-PostDIETARY_SUPPLEMENT

14 days of supplementation with 25 mg/day hemicellulose crystalline

Placebo-post

No dietary supplementation prior to undergoing the tetraselmis chuii supplement

Tetraselmis chuii-Pre
Tetraselmis chuii-PostDIETARY_SUPPLEMENT

14 days of supplementation with 25 mg/day tetraselmis chuii

Tetraselmis chuii-Post

Eligibility Criteria

Age18 Years - 40 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy male (as determined by the Health Screening Questionnaire)
  • Adult (aged ≥18 and ≤40 years old)
  • Recreationally-active (≥2 and ≤4 exercise sessions per week) and a V̇O2max of ≥ 35 mL/kg/min and ≤ 65 mL/kg/min as determined from the preliminary exercise test
  • No known history of gastric, digestive, cardiovascular, renal disease or any other orthopaedic diseases related to motor organs
  • Non-smoker
  • Healthy body mass index (BMI; ≥18.5 and ≤24.9 kg/m2)
  • Not using any dietary supplements, including antioxidant and nitrate-rich supplements, currently or in the past one month
  • Not a heavy drinker (≤ 14 units of alcohol) on most weeks
  • Not using medication that may affect study measures
  • Not participating in other studies currently or in the past two months prior to the consenting session (visit 1) or having an intention to participate in other studies over the period of this study

You may not qualify if:

  • Female
  • Aged \<18 and \>40 years old
  • Sedentary or highly trained with a respective V̇O2max of \< 35 mL/kg/min and \> 65 mL/kg/min as determined from the preliminary exercise test
  • History of gastric, digestive, cardiovascular, renal disease or any other orthopaedic diseases related to motor organs
  • Smoker
  • Unhealthy body mass index (BMI;\<18.5 and \>24.9 kg/m2)
  • Using any dietary supplements, including antioxidant and nitrate-rich supplements, currently or in the past one month
  • Heavy drinker (\> 14 units of alcohol) on most weeks
  • Using medication that may affect study measures
  • Participating in other studies currently or in the past two months prior to the consenting session (visit 1) or having an intention to participate in other studies over the period of this study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Loughborough University

Loughborough, Leicestershire, LE7 7WG, United Kingdom

Location

Study Officials

  • Stephen J Bailey

    Loughborough University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Funder
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: Crossover Assignment 13 participants completed 2 experimental conditions in a randomized order.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Reader in Human and Exercise Physiology

Study Record Dates

First Submitted

December 31, 2024

First Posted

February 18, 2025

Study Start

October 4, 2019

Primary Completion

May 19, 2021

Study Completion

May 19, 2021

Last Updated

February 18, 2025

Record last verified: 2024-12

Locations