Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00062595 · ClinicalTrials.gov registry record · Phase 3

Vitamin K and Bone Turnover in Postmenopausal Women

A Phase 3 study, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

Completed
Registry status
Phase 3
Development phase
375
Enrollment target

NCT00062595: Completed Phase 3 study, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

NCT00062595 is a Phase 3 study that has completed, run by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). The registered enrollment target is 375 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (51% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00062595, a Phase 3 study, has completed, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

COMPLETED
Registry status
Phase 3
Development phase
375 participants
Enrollment target

Study Summary

This one year study of the K vitamers phylloquinone (K1) and menatetranone (MK4) will study supplementation effects on bone turnover and bone density. Women at least 5 years postmenopause with normal bone density who do not use estrogen therapy or the following medications may be eligible: alendronate (Fosamax), risedronate (Actonel), pamidronate (Aredia), etidronate (Didronel), zoledronate (Zometa), teriparatide (Forteo), raloxifene (Evista), tamoxifene, warfarin (Coumadin), anti-seizure medications, prednisone, or oral steroids. Eligible subjects will take calcium and vitamin D (Citracal) twice a day for the first two months and through-out the study. After the first two months, subjects are randomized to the K1, MK4 or placebo groups. Return visits occur at 1, 3, 6 and 12 months. Fasting blood and urine is collected at each visit and bone density is performed at 3 study visits.

Interventions

  • DRUG phylloquinone (K1)
  • DRUG menatetranone (MK4)

Trial Details

FieldValue
Enrollment Target 375 participants
Start Date 2000-09
Est. Completion 2004-10
Phase Phase 3

What the finished NCT00062595 record still lists

NCT00062595 is an interventional study that assigns participants to a tested intervention. The registered 375 participants enrollment target is mid-sized for trials with a published cap, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (51% lower).

The record links to 0 conditions, and to 2 interventions - of which phylloquinone (K1) is the first listed.

NCT00062595 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00062595 about?

NCT00062595 is a clinical study titled "Vitamin K and Bone Turnover in Postmenopausal Women". This one year study of the K vitamers phylloquinone (K1) and menatetranone (MK4) will study supplementation effects on bone turnover and bone density. Women at least 5 years postmenopause with normal bone density who do not use estrogen therapy or the following medications may be eligible: alendron...

What is the current status of trial NCT00062595?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 375 participants. The study started on 2000-09. Estimated completion is 2004-10.

What interventions are being tested in trial NCT00062595?

The interventions under investigation include: phylloquinone (K1) (DRUG), menatetranone (MK4) (DRUG).

Who is sponsoring clinical trial NCT00062595?

This trial is sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), which has 490 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00062595's enrollment target sits among peer trials

375 988th of 2000 higher than 1,010 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT03686124 · 375 participants · Phase 1

    ACTengine® IMA203/IMA203CD8 as Monotherapy or in Combination With Nivolumab in Recurrent and/or Refractory Solid Tumors

  • NCT04059172 · 375 participants · Early Phase 1

    Efficacy of Combined Ibuprofen and Acetaminophen Therapy Versus Ibuprofen Alone Versus Placebo Alone for Pain Management

  • NCT04134923 · 375 participants

    Imaging Biomarkers in Preclinical and Symptomatic AD

  • NCT04569747 · 375 participants · Phase 2

    A Single Arm Phase II Study of ADjuvant Endocrine Therapy, Pertuzumab, and Trastuzumab for Patients With Anatomic Stage I Hormone Receptor-positive, HER2-positive Breast Cancer

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT00062595, the US trial registry maintained by the National Library of Medicine. NCT00062595 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.