NCT07456449

Brief Summary

The goal of this clinical trial is to learn if daily collagen peptide supplementation can stabilize or lengthen telomeres and improve related markers of cellular aging in adults aged 50-70 years with overweight and low-to-moderate physical activity (healthy volunteers without major chronic disease). Main questions it aims to answer are: Does six months of collagen peptides stabilize or extend telomere length and increase telomerase activity compared with placebo? Are any telomere-related changes associated with lower inflammation, healthier body composition, and better functional health? Researchers will compare collagen as an intervention to a placebo group to see if collagen will influence aging markers. Participants will take collagen peptides or a placebo daily for 24 weeks. They will attend three study visits: one before starting the intervention (T0), one at 3 months (T1), and one at 6 months (T2). At each visit, blood samples will be collected to measure telomere length, telomerase activity, and inflammation/redox markers. Participants will also undergo body composition assessments using bioelectrical impedance, complete functional tests of muscle strength and mobility, and fill out questionnaires on health and vitality.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
125

participants targeted

Target at P50-P75 for not_applicable

Timeline
27mo left

Started Apr 2026

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress2%
Apr 2026Aug 2028

First Submitted

Initial submission to the registry

February 23, 2026

Completed
11 days until next milestone

First Posted

Study publicly available on registry

March 6, 2026

Completed
2 months until next milestone

Study Start

First participant enrolled

April 22, 2026

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2028

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2028

Last Updated

May 5, 2026

Status Verified

January 1, 2026

Enrollment Period

1.8 years

First QC Date

February 23, 2026

Last Update Submit

April 28, 2026

Conditions

Keywords

AgingCollagenSupplementsPatient CareHealthspanCellular aging

Outcome Measures

Primary Outcomes (4)

  • Telomere length

    Changes in leukocyte telomere length (qPCR) from peripheral blood

    Baseline and after supplementation (24 weeks)

  • Telomerase Activity

    Changes telomerase activity measured via TRAP Assay from peripheral blood

    Baseline and at the end of supplemention (24 weeks)

  • Change from baseline in DNA-oxidation markers

    Change in DNA Damage measured through comet assay

    Baseline and at the end of supplementation (24 weeks)

  • Change from baseline in micronuclei

    Change in Micronulei measured through CBMN-Assay

    Baseline and at the end of supplementation (24 weeks)

Secondary Outcomes (14)

  • Change from baseline in Inflammatory markers

    Baseline and at the end of supplemention (24 weeks)

  • Change from baseline in the redox/antioxidant status

    Baseline and at the end of supplementation (24 weeks)

  • Change from baseline in body composition

    Basline, after 3 months and at the end of the supplementation (24 weeks)

  • Change from baseline metabolic markers

    Baseline and at the end of supplementation (24 weeks)

  • Change from baseline in hormonal markers

    Baseline and at the end of supplementation (24 weeks)

  • +9 more secondary outcomes

Study Arms (2)

Collagen Peptides

EXPERIMENTAL

Participants receive daily oral supplementation with specific collagen peptides for 24 weeks. Allocation is randomized 1:1 and double-blinded against placebo. Study visits occur at baseline (T0), 3 months (T1), and 6 months (T2). Blood samples are collected to assess telomere length (qPCR T/S ratio) and telomerase activity (TRAP), alongside inflammation and redox markers. Body composition (bioelectrical impedance), functional tests (muscle strength, mobility), and questionnaires on health and vitality are also performed. The intervention aims to test whether six months of collagen peptides stabilize or extend telomeres and increase telomerase activity compared with placebo.

Dietary Supplement: Collagen peptides

Maltodextrin

PLACEBO COMPARATOR

Participants receive a daily placebo matched in a double-blind design for 24 weeks, with the same schedule of study visits at T0, T1, and T2 and the same assessments (blood biomarkers of telomere biology, inflammation/redox; body composition; functional tests; questionnaires) as the verum arm. Maltodextrin serves as the control to compare effects against collagen peptides in a randomized, double-blind, placebo-controlled, parallel-group trial.

Dietary Supplement: Maltodextrin (Placebo)

Interventions

Collagen peptidesDIETARY_SUPPLEMENT

Collagen peptides (oral daily supplementation), taken once daily for 24 weeks in a randomized 1:1, double-blind design; primary outcomes: telomere length (qPCR T/S) and telomerase activity (TRAP), with inflammatory/redox markers as secondary endpoints. Target population: adults 50-70 years with BMI 25-30 and low-to-moderate activity; vegetarians/vegans excluded due to animal-derived collagen. Matched maltodextrin placebo, identical dosing and visit schedule (T0, T1, T2), serving as the comparator to isolate collagen peptide effects in the parallel-group, double-blind trial. Products are approved as foods; prior clinical studies reported no substance-related adverse effects.

Collagen Peptides
Maltodextrin (Placebo)DIETARY_SUPPLEMENT

Placebo instead of the collagen peptides

Maltodextrin

Eligibility Criteria

Age50 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults aged 50-70 years; both male and female participants are eligible
  • Body mass index (BMI) 25-30 kg/m²
  • Low to moderate physical activity: not meeting current WHO recommendations (\<150 minutes/week) or ≤2 sessions/week structured training
  • Able to live independently and mobile in daily life
  • No regular resistance training within the past 6 months
  • Provision of written informed consent

You may not qualify if:

  • Diagnosed chronic diseases relevant to the immune system, metabolism, or cellular aging (e.g., diabetes mellitus, cancer, cardiovascular, rheumatologic diseases)
  • Use of immunomodulatory, systemic anti-inflammatory, or hormonal medications (e.g., corticosteroids, immunosuppressants)
  • Acute infections or surgeries within the last 3 months
  • Regular use of supplements known to affect oxidative stress or cellular aging (e.g., high-dose antioxidants, CoQ10, omega-3 fatty acids, high-dose vitamin D)
  • Participation in another clinical study within the last 3 months
  • Vegetarian or vegan diet (product contains animal-derived collagen)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Vienna, NuTraLab

Vienna, State of Vienna, 1070, Austria

RECRUITING

MeSH Terms

Interventions

maltodextrin

Central Study Contacts

Daniel König, Univ. Prof. Dr.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Model Details: Interventional Study Model: Parallel Assignment - randomized, double-blind, placebo-controlled trial with two parallel groups (collagen peptides vs. placebo) in a 1:1 allocation
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Univ. Professor Dr.

Study Record Dates

First Submitted

February 23, 2026

First Posted

March 6, 2026

Study Start

April 22, 2026

Primary Completion (Estimated)

February 1, 2028

Study Completion (Estimated)

August 1, 2028

Last Updated

May 5, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations