The present clinical study has been designed to evaluate the effect of Collavant® n2 at a daily dose of 40 mg on joint function and performance in healthy, amateur male runners with exercise-induced knee discomfort.
The COLLMOTION study is a randomized, double-blind, placebo-controlled, parallel clinical study designed to evaluate the effects of Collavant® n2 on joint function, performance and discomfort in healthy, physically active male adults experiencing exercise-induced knee discomfort. A total of 80 healthy male amateur runners aged 40 to 65 years are enrolled and randomized in a 1:1 ratio to receive either Collavant® n2 (40 mg/day) or placebo for a total intervention period of 24 weeks. Eligible participants are required to train regularly (≥150 minutes per week), report persistent exercise-related knee discomfort, and meet predefined inclusion and exclusion criteria to ensure the absence of diagnosed knee pathology such as osteoarthritis. The primary objective of the study is to assess differences from baseline and versus placebo in joint discomfort. Secondary objectives include the evaluation of joint function, physical performance, perceived exertion, pain intensity before exercise, time to pain recovery, and joint inflammation. Safety and tolerability are evaluated throughout the study via monitoring of adverse events, vital signs, physical examinations, laboratory parameters, and quality-of-life assessments. Participants undergo assessments at baseline, 12 weeks, and 24 weeks.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
QUADRUPLE
Enrollment
80
Native type II collagen (Collavant® n2). 1 capsule 40 mg / day
Placebo. 1 capsule / day
Universidad Politecnica de Madrid
Madrid, Madrid, Spain
RECRUITINGChange in Exercise-Induced Knee Joint Discomfort
Joint discomfort will be assessed using a Visual Analogue Scale (VAS) to quantify knee pain intensity associated with physical activity. The primary endpoint is the change in knee joint discomfort from baseline, comparing Collavant® n2 versus placebo. VAS scores will be collected under standardized conditions after the running test, to capture exercise-induced discomfort.
Time frame: Baseline (week 0) to week 24
Change in joint pain intensity after physical activity
Knee pain intensity following the running test will be measured using a Visual Analogue Scale (VAS).
Time frame: Baseline (week 0) to week 12
Change in joint pain intensity before physical activity
Knee pain intensity will be assessed using a Visual Analogue Scale (VAS) prior to performing the standardized running test.
Time frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Time to recovery of knee pain after exercise
The time required for knee pain to return to the participant's pre-exercise baseline level following the running test will be recorded by participant self-report.
Time frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in physical performance during the running test
Physical performance will be assessed by recording completion time (in seconds) for a standardized running test.
Time frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in perceived exertion during physical activity
Perceived exertion will be assessed using the Borg Rating of Perceived Exertion (RPE) scale immediately after the running test.
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Time frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in knee joint function
Knee function will be evaluated using the Knee Injury and Osteoarthritis Outcome Score (KOOS), a validated questionnaire assessing pain, symptoms, activities of daily living, sport/recreation function, and knee-related quality of life.
Time frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in knee joint inflammation
Thermal response of the knee joint will be evaluated using infrared thermography before exercise, immediately after exercise, and 30 minutes post-exercise to assess exercise-induced inflammatory response.
Time frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in cartilage biomarkers
Blood and urine biomarkers related to cartilage turnover and inflammation will be measured.
Time frame: Baseline (week 0) to week 12, baseline (week 0) to week 24