The Role of Vitamin K on Knee Osteoarthritis Outcomes

Study Purpose

The appropriate form and dosing of vitamin K to benefit relevant outcomes in knee osteoarthritis (OA) are not known. In intervention studies for conditions other than knee OA (e.g., prevention of cardiovascular disease), the most commonly used forms and doses include phylloquinone (vitamin K1; 1000µg or 500µg daily) or menaquinone-7 (MK-7 or vitamin K2; 360µg daily). However, whether these doses are adequate to increase vitamin K to levels that ameliorate risk of adverse OA outcomes is not known. Furthermore, although some studies suggest enhanced bioavailability of MK-7 over vitamin K1, as well as extra-hepatic effects, whether this is relevant for an older population with knee OA is not known, The overall goal of this pilot randomized clinical trial (RCT) is to test different subtypes and doses of vitamin K supplementation in older adults with knee OA and to measure changes in relevant biochemical measures.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 60 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - ≥60 years old.
  • - Clinical diagnosis of knee OA by the treating rheumatologist.
  • - English fluency.

Exclusion Criteria:

- Anticoagulation use (including warfarin, dabigatran, rivaroxaban, apixaban)

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT06385275
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

N/A
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Boston University
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Jean Liew, MD MS
Principal Investigator Affiliation Boston University Chobanian & Avedisian School of Medicine, Department of Rheumatology
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Other, NIH
Overall Status Not yet recruiting
Countries United States
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Osteo Arthritis Knee
Arms & Interventions

Arms

Experimental: Vitamin K1 500 µg

Participants randomized to this arm will take one Vitamin K1 500 µg pill daily for 4 weeks.

Experimental: Vitamin K1 1000 µg

Participants randomized to this arm will take one Vitamin K1 1000 µg pill daily for 4 weeks.

Experimental: Vitamin K2 (MK-7) 360 µg

Participants randomized to this arm will take one Vitamin K2 (MK-7) 360 µg pill daily for 4 weeks.

Placebo Comparator: Placebo

Participants randomized to this arm will take 1 placebo pill daily for 4 weeks.

Interventions

Dietary Supplement: - Vitamin K1 500 µg

One pill daily for 4 weeks.

Dietary Supplement: - K1 1000 µg

One pill daily for 4 weeks.

Dietary Supplement: - Vitamin K2 (MK-7) 360 µg

One pill daily for 4 weeks.

Other: - Placebo

Placebo pill daily for 4 weeks.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Boston, Massachusetts

Status

Address

Boston Medical Center, Rheumatology Clinic

Boston, Massachusetts, 02118

Site Contact

Jean Liew, MD MS

[email protected]

617-358-9655