NCT03702205 is a Phase 2, PHASE3 clinical trial of Betaine supplementation in Supplementation, sponsored by Poznan University of Life Sciences.

Who is sponsoring NCT03702205?

NCT03702205 is sponsored by Poznan University of Life Sciences.

What drugs are being tested in NCT03702205?

Interventions in NCT03702205: Betaine supplementation, Placebo treatment.

What condition does NCT03702205 study?

NCT03702205 studies Supplementation, Sport.

Is NCT03702205 still recruiting?

NCT03702205 is currently status unknown. Last updated 16 September 2020.

Last reviewed 2020-09-16 · How we verify

NCT03702205

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Betaine Effect in Speed-strength Athletes

Status unknown Phase 2, PHASE3 Last updated 16 September 2020

What this trial tests

Phase 2, PHASE3 trial testing Betaine supplementation in Supplementation in 80 participants. Status unknown.

Timeline

15 October 2018

Primary endpoint
20 June 2021

12 October 2021

Quick facts

Lead sponsor	Poznan University of Life Sciences
Phase	Phase 2, PHASE3
Status	Status unknown
Study type	INTERVENTIONAL
Allocation	randomized
Design	crossover
Masking	triple
Primary purpose	treatment
Enrollment	80
Start date	15 October 2018
Primary completion	20 June 2021
Estimated completion	12 October 2021
Sites	1 location across Poland

Drugs / interventions tested

Betaine supplementation
Placebo treatment

Conditions studied

Supplementation — all drugs for Supplementation →
Sport — all drugs for Sport →

Sponsor

Poznan University of Life Sciences

Who can join

Adults 18 to 35, male only, with Supplementation or Sport. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The study is aimed at assessing the influence of two betaine doses (2.5 g∙d-1 and 5 g∙d-1) supplemented for three weeks in a group of speed-strength trained athletes on anaerobic capacity in Wingate test, performance in CrossFit-like exercise test - Fight Gone Bad, alterations in body compositions and total body water.

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

Betaine supplementation improves CrossFit performance and increases testosterone levels, but has no influence on Wingate power: randomized crossover trial.
Zawieja E, Durkalec-Michalski K, Sadowski M, Główka N, et al · · 2023 · cited 4× · PMID 37409757 · DOI 10.1080/15502783.2023.2231411
The Effect of 3-Week Betaine Supplementation on Blood Biomarkers of Cardiometabolic Health in Young Physically Active Males.
Zawieja E, Durkalec-Michalski K, Muzsik-Kazimierska A, Chmurzynska A. · · 2022 · cited 3× · PMID 36005603 · DOI 10.3390/metabo12080731

Verify or expand the search:

Other recruiting trials for Supplementation

Currently open trials in the same condition.

NCT07504068 — Effects of Physical Exercise and a Nutritional Supplement on Body Composition, Metabolic Function, and Overall Health in · NA · recruiting
NCT07252778 — Effect of a Short-term Multi-strain Probiotic Supplementation in Endurance Athletes · Phase 2, PHASE3 · recruiting
NCT07213063 — Effects of Chronic Creatine and Beta-Hydroxy-Beta-Methylbutyrate Supplementation on Oxidative Stress, Inflammation, Musc · NA · recruiting
NCT05878106 — Creatine Supplementation and Resistance Training in Patients With Breast Cancer · NA · recruiting
NCT05516212 — Caffeine Kinetics and CrossFit®-Specific Performance · Phase 2, PHASE3 · recruiting

Other Poznan University of Life Sciences trials

Trials by the same sponsor.

NCT07245979 — Supplementation With Sirtuin Activators in Women With Increased Body Weight · NA · recruiting
NCT06677411 — Vitamin D Status Fluctuations Over One Academic Year in Students · active not recruiting
NCT06344377 — Betaine Supplementation and Lipid Metabolism in Overweight and Obese Pre-menopausal Women · NA · completed
NCT06239363 — Dietary Salicylates and Preeclampsia · recruiting
NCT06860581 — The Impact of Selected Probiotic Bacteria on Gut Microbiota, Stress Indicators and Nutritional Status of Young Adults · NA · completed

Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT03702205 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Poznan University of Life Sciences
Last refreshed: 16 September 2020

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03702205.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing