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Vitamin K Supplement

Phase II, Vitamin K (Vitacost) Supplementation for Vitamin K Deficiency

N/A
Waitlist Available
Led By Kenneth E Thummel, PhD
Research Sponsored by University of Washington
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 10-days
Awards & highlights

Study Summary

This trial is looking at how a gene affects how our bodies use vitamin K, which is important for blood clotting. They will study how well vitamin K supplements work in people with different versions of the gene.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~10-days
This trial's timeline: 3 weeks for screening, Varies for treatment, and 10-days for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Long-term Hepatic Vitamin K Status
Short-term Hepatic Vitamin K Status-1
Secondary outcome measures
Short-term Hepatic Vitamin K Status-2

Trial Design

2Treatment groups
Experimental Treatment
Group I: Phase II, Vitamin K (Vitacost) SupplementationExperimental Treatment1 Intervention
Subjects from Phase I with a homozygous CYP4F2*1 (n=14) or CYP4F2*3 carriers (n=14) are selected to receive daily vitamin K supplementation, for 10-days. Blood and urine samples are collected sequentially, at baseline, and during the supplementation period.
Group II: Phase I, Buccal Swab Collection for DNA IsolationExperimental Treatment1 Intervention
Approximately 200 healthy volunteers recruited. They complete a brief demographic survey and a undergo one-time buccal swab for collection of cheek cells for DNA analysis.

Find a Location

Who is running the clinical trial?

University of WashingtonLead Sponsor
1,738 Previous Clinical Trials
1,844,245 Total Patients Enrolled
National Institute of General Medical Sciences (NIGMS)NIH
268 Previous Clinical Trials
248,654 Total Patients Enrolled
Kenneth E Thummel, PhDPrincipal InvestigatorUniversity of Washington

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Are there vacancies in this medical trial for participants?

"Affirmative. Records on clinicaltrials.gov demonstrate that this medical trial, which was initially available for recruitment on August 25th 2017 is still looking for participants. A total of 200 patients across a single location need to be enrolled in the study."

Answered by AI

How many participants are involved in this investigation?

"Correct. Clinicaltrials.gov provides evidence that this clinical trial, initially posted on August 25th 2017, is actively seeking participants. The study aims to recruit 200 individuals from a single location."

Answered by AI

Who else is applying?

What state do they live in?
Washington
How old are they?
18 - 65
What site did they apply to?
University of Washington
What portion of applicants met pre-screening criteria?
Did not meet criteria
Recent research and studies
clinicaltrials.govStudy
Vitamin K Supplementation Study in Healthy Volunteers (Aim 2B)
Kenneth Thummel 2017. "Vitamin K Supplementation Study in Healthy Volunteers (Aim 2B)". ClinicalTrials.gov. https://clinicaltrials.gov/ct2/show/NCT04450212.
~14 spots leftby Apr 2025
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