Status:

NOT_YET_RECRUITING

Exploring the Cognitive Benefits of a Blackcurrant-Based Supplement in Normobaric Hypoxia

Lead Sponsor:

Leeds Beckett University

Conditions:

Cognitive Performance

Executive Function (Cognition)

Eligibility:

MALE

18-35 years

Phase:

NA

Brief Summary

This study investigates the cognitive effects of Ārepa, a blackcurrant-based drink, under simulated high-altitude conditions (4,500m normobaric hypoxia for \~180 minutes). Using a double-blind, random...

Detailed Description

Cognitive functioning can be influenced by varying factors including age, education, fatigue and environmental conditions. It is well established that stress, including hypoxia, sleep deprivation, and...

Eligibility Criteria

Inclusion

  • Willing and able to provide written informed consent (in English)
  • Aged 18-35
  • Male
  • Residing at a low altitude (\<500m)

Exclusion

  • Diagnosed food allergy or intolerance to the investigational products or control products. (Blackcurrant, food allergen/ pine, tree-derived allergen/ l-theanine tree allergen (camellia sinensis))
  • Significant past medical and psychiatric history and ongoing chronic conditions such as, cardiovascular disease, respiratory disease, endocrine disorder (e.g. Diabetes mellites) and neurological and psychiatric conditions including brain injury or are colourblind.
  • Significant medication history or current prescription of medication or supplements known to affect cognition such as. Sedatives, stimulants, or herbal supplements high in anthocyanin and polyphenol content.
  • A positive result from the pre-screening sickle cell trait blood test.
  • An abnormal ECG reading.
  • A resting heart rate above 100bmp.
  • A blood pressure reading above 140/90mmHg.
  • Subjects not willing and/ or not able to comply with the scheduled visits required for the study.
  • Not willing to provide blood samples.
  • Not classified as low risk based on the ACSM guidelines.

Key Trial Info

Start Date :

September 1 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

October 1 2027

Estimated Enrollment :

27 Patients enrolled

Trial Details

Trial ID

NCT07166835

Start Date

September 1 2025

End Date

October 1 2027

Last Update

September 10 2025

Active Locations (1)

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Leeds Beckett University

Leeds, United Kingdom, LS6 3QS