Effect of Collavant® n2 in Healthy Male Adults With Exercise-induced Joint Discomfort. (COLLMOTION)

May 11, 2026 updated by: Bioiberica

A Randomized, Double-blind, Placebo-controlled Clinical Study to Assess the Effect of Collavant® n2 on Joint Function and Performance in Healthy, Active Male Adults With Exercise-induced Joint Discomfort.

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.

Study Overview

Detailed Description

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

Enrollment (Estimated)

80

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Madrid
      • Madrid, Madrid, Spain, 28040
        • Recruiting
        • Universidad Politécnica de Madrid
        • Contact:
        • Contact:
        • Principal Investigator:
          • Marcela González-Gross, Professor
        • Principal Investigator:
          • Javier Modrego-Martin, Doctor

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Healthy physically active male adults (amateur runners) with exercise-induced joint discomfort, aged between 40 and 65 years
  • Activity level: Amateur runners who train regularly a minimum of 150 minutes per week, divided into 2 or more sessions per week during at least 3 months. Principally, subjects training for popular running events of 10 Kms.
  • Joint discomfort after activity: Self-reports target knee discomfort after training by a score of at least 20 mm VAS at screening. Discomfort persistent for at least 2w.
  • Be willing to refrain from starting any new dietary supplements during the entire study that have any underlying joint benefits (collagen, glucosamine, chondroitin, MSM, Hyaluronic Acid, Turmeric, Natural Eggshell Membrane, Omega-3 fatty acids, PEA, Boswellia,..). If any of these supplements (except collagen) or any other dietary supplement has been taken consistently for at least 6 months prior to enrollment, participants should maintain the same stable intake pattern throughout the 24 week study period.
  • Have individual devices to monitor training with GPS
  • Sign informed consent

Exclusion Criteria:

  • Diagnostic of knee osteoarthritis or any pathology or surgical intervention associated with the knee.
  • Hypersensitivity to any component of the supplement or the placebo
  • Chronic treatment with analgesic or anti-inflammatory (NSAIDs and corticosteroids families) drugs
  • Treatment with any type of collagen supplement
  • Treatment with probiotics or antibiotics
  • Inability to train for the next 24 weeks
  • Follow a vegan diet

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Placebo. 1 capsule / day
Experimental: Collavant® n2
Native type II collagen (Collavant® n2)

Native type II collagen (Collavant® n2).

1 capsule 40 mg / day

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Exercise-Induced Knee Joint Discomfort
Time Frame: Baseline (week 0) to week 24
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.
Baseline (week 0) to week 24

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in joint pain intensity after physical activity
Time Frame: Baseline (week 0) to week 12
Knee pain intensity following the running test will be measured using a Visual Analogue Scale (VAS).
Baseline (week 0) to week 12
Change in joint pain intensity before physical activity
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Knee pain intensity will be assessed using a Visual Analogue Scale (VAS) prior to performing the standardized running test.
Baseline (week 0) to week 12, baseline (week 0) to week 24
Time to recovery of knee pain after exercise
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
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.
Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in physical performance during the running test
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Physical performance will be assessed by recording completion time (in seconds) for a standardized running test.
Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in perceived exertion during physical activity
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Perceived exertion will be assessed using the Borg Rating of Perceived Exertion (RPE) scale immediately after the running test.
Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in knee joint function
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
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.
Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in knee joint inflammation
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
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.
Baseline (week 0) to week 12, baseline (week 0) to week 24
Change in cartilage biomarkers
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Blood and urine biomarkers related to cartilage turnover and inflammation will be measured.
Baseline (week 0) to week 12, baseline (week 0) to week 24

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in clinical knee examination
Time Frame: Baseline (week 0) to week 12, baseline (week 0) to week 24
Clinical assessment of patellofemoral pain using the Zohlen test will be performed before and after the running test.
Baseline (week 0) to week 12, baseline (week 0) to week 24
Incidence of Adverse Events
Time Frame: Baseline (week 0) to week 24
Number and percentage of participants experiencing adverse events classified by severity and relationship to the study intervention.
Baseline (week 0) to week 24
Changes in Vital Signs
Time Frame: Baseline (week 0) to week 24
Change from baseline in vital signs: systolic and diastolic blood pressure (mmHg) and heart rate (beats per minute).
Baseline (week 0) to week 24
Changes in clinical laboratory parameters
Time Frame: Baseline (week 0) to week 24
Change from baseline in clinical laboratory parameters: hematology and blood biochemistry values.
Baseline (week 0) to week 24
Changes in physical activity level
Time Frame: Baseline (week 0) to week 24
Change from baseline in participant-reported physical activity level assessed using IPAQ questionnaire.
Baseline (week 0) to week 24
Change in dietary habits
Time Frame: Baseline (week 0) to week 24
Change from baseline in participant-reported dietary intake assessed using the Mediterranean Diet Adherence Questionnaire.
Baseline (week 0) to week 24
Change in Quality of Life score
Time Frame: Baseline (week 0) to week 24
Change from baseline in quality of life score assessed using the Quality of Life questionnaire SF-12
Baseline (week 0) to week 24
Change in muscle strength assessed by handgrip dinamometry
Time Frame: Baseline (week 0) to week 24]
Change from baseline in muscle strength (in Kg or Newtons) assessed by handgrip dynamometry.
Baseline (week 0) to week 24]

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Marcela González-Gross, Professor, Universidad Politécnica de Madrid
  • Principal Investigator: Javier Modrego-Martin, Doctor, Universidad Politécnica de Madrid

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 6, 2026

Primary Completion (Estimated)

March 1, 2027

Study Completion (Estimated)

March 1, 2027

Study Registration Dates

First Submitted

April 10, 2026

First Submitted That Met QC Criteria

April 24, 2026

First Posted (Actual)

May 1, 2026

Study Record Updates

Last Update Posted (Actual)

May 13, 2026

Last Update Submitted That Met QC Criteria

May 11, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Healthy Adult Male

Clinical Trials on Native type II collagen (Collavant® n2)

Subscribe