Last reviewed · How we verify
NCT07371052
Olive Leaf Extract in Handball Players
NA trial testing Olive leaf extract in Handball Players in 18 participants. Completed in 1 February 2025.
15 January 2025
Quick facts
| Lead sponsor | Karabuk University |
|---|---|
| Phase | NA |
| Status | Completed |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | triple |
| Primary purpose | prevention |
| Enrollment | 18 |
| Start date | 1 January 2025 |
| Primary completion | 15 January 2025 |
| Estimated completion | 1 February 2025 |
| Sites | 1 location across Turkey (Türkiye) |
Drugs / interventions tested
- Olive leaf extract
- Placebo
Conditions studied
- Handball Players — all drugs for Handball Players →
Sponsor
Karabuk University
Who can join
Adults 18 to 25, male only, with Handball Players. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Olive leaf extract (OLE) is a natural supplement rich in phenolic compounds, especially oleuropein, which has antioxidant properties that may support recovery after physical exercise. While OLE has been studied for various health-related effects, its potential impact on exercise recovery and performance in elite athletes remains unclear. This randomized, double-blind, placebo-controlled study was designed to evaluate the effects of four weeks of OLE supplementation on physical performance, sleep quality, and post-exercise muscle soreness in elite male handball players aged 18 to 25 years. Participants were randomly assigned to receive either a daily OLE supplement (500 mg, standardized to 25% oleuropein) or a placebo for four weeks. Physical performance, sleep quality, and muscle soreness were assessed at baseline, during the intervention, and at the end of the study period. Muscle soreness was additionally evaluated at 12 and 24 hours following exercise sessions.
Publications & conference data
No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.
Verify or expand the search:
- PubMed search for NCT07371052
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
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- medRxiv preprints
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Related trials
Other trials of Olive leaf extract
Trials testing the same drug.
- NCT05350566 — Combined Effect of Exercise Intensity With Nutritional Supplementation on Skeletal Muscle Function · NA · completed
- NCT05217433 — Oleuropein and Muscle Energy Metabolism · NA · completed
Other recruiting trials for Handball Players
Currently open trials in the same condition.
- NCT06685666 — Effects of Band Exercises Added to the Warm-Up on Shooting and Viscoelastic Properties of Muscles in Handball Players · NA · recruiting
Other Karabuk University trials
Trials by the same sponsor.
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- NCT07495475 — Mobile App-Supported Exercise Program For Mechanical Low Back Pain · NA · not yet recruiting
- NCT07473245 — Educational Models for Tobacco Exposure Awareness · NA · not yet recruiting
- NCT07389395 — Grastion and Percussion Therapy · NA · not yet recruiting
- NCT07368387 — QR Code-Based Preoperative Education for Cesarean Birth: Anxiety, Pain, and Comfort · NA · not yet recruiting
Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT07371052 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Karabuk University
- Last refreshed: 27 January 2026
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/NCT07371052.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing