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Study identifier: NCT05407194 Synced from ClinicalTrials.gov · July 29, 2026
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Effect of Collagen/Vitamin C in Jumper's Knee; a RCT

Condition: Patellar Tendinopathy  ·  Sponsor: Gelderse Vallei Hospital

PhaseNA
Planned participants76
Who can joinAll sexes, 16 Years to 40 Years
Healthy volunteersYes

About this study

Patellar tendinopathy (PT) is a tendon overuse injury with high prevalence rates in elite and recreational athletes. PT sometimes results in a prolonged absence from sport participation, hampering individuals to achieve their desired performance levels and to benefit from the health related effects of sports participation. Many treatment options are used but management of PT remains challenging. Current treatment involves progressive education, load management and tendon loading exercises (PTLE). Recent studies have shown that nutrition can positively affect collagen synthesis in musculoskeletal tissues. A study showed that supplementing 15g of gelatine combined with 50mg of Vitamin C, 1 hour before loading exercises, resulted in an increase in whole body collagen synthesis and increased mechanics and collagen content of human engineered ligaments. However the effectiveness of oral supplementation of hydrolysed collagen in combination with vitamin C in athletes with PT has not been studied in a randomized controlled trial yet. Objective: The primary aim of this RCT is to evaluate whether the use of oral supplementation of hydrolysed collagen/vitamin C in addition to usual care (education, load management and PTLE) is superior to usual care and placebo on VISA-P score after 12, 24 and 52 weeks for athletes with PT. The secondary aim of this RCT is to evaluate whether the use of oral supplementation of hydrolysed collagen/vitamin C in addition to usual care (education, load ma…

This description comes directly from the study's public registry record.

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Locations (1)

Gelderse Vallei HospitalEde, Gelderland, NetherlandsRecruiting

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Source record: clinicaltrials.gov/study/NCT05407194