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NCT04177758 · ClinicalTrials.gov registry record · Phase 4

Evaluating Vitamin D3 Supplement on Post-Op Outcomes

A Phase 4 study, sponsored by Rush University Medical Center.

Completed
Registry status
Phase 4
Development phase
137
Enrollment target

NCT04177758: Completed Phase 4 study, sponsored by Rush University Medical Center.

NCT04177758 is a Phase 4 study that has completed, run by Rush University Medical Center. The registered enrollment target is 137 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (74% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04177758, a Phase 4 study, has completed, sponsored by Rush University Medical Center.

COMPLETED
Registry status
Phase 4
Development phase
137 participants
Enrollment target

Study Summary

The aim of this study is to determine if vitamin D supplementation is associated with differences in short-term recovery in patients following total knee arthroplasty compared to patients who do not receive supplementation. If so, vitamin D supplementation has the potential to become widely incorporated into the routine care for patients undergoing knee replacements.

Primary Outcome

The functional component of the 2012 version of the knee society score at 3 weeks following surgery. Range 0-100. Assessed at 3 weeks following surgery, 3 weeks following surgery reported. For the 0-100 scale, Zero represents a worse outcome, deductions are taken away for using an assistive device and other physical exam factors. 100 would be the best score possible.

Interventions

  • DRUG Control
  • DRUG Vitamin D

Trial Details

FieldValue
Enrollment Target 137 participants
Start Date 2020-02-01
Est. Completion 2022-03-01
Phase Phase 4
Rush University Medical Center

320 total trials

What the finished NCT04177758 record still lists

NCT04177758 is an interventional study that assigns participants to a tested intervention. The registered 137 participants enrollment target is mid-sized for trials with a published cap, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (74% lower).

The record links to 0 conditions, and to 2 interventions - of which Control is the first listed.

NCT04177758 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04177758 about?

NCT04177758 is a clinical study titled "Evaluating Vitamin D3 Supplement on Post-Op Outcomes". The aim of this study is to determine if vitamin D supplementation is associated with differences in short-term recovery in patients following total knee arthroplasty compared to patients who do not receive supplementation. If so, vitamin D supplementation has the potential to become widely incorpor...

What is the current status of trial NCT04177758?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 137 participants. The study started on 2020-02-01. Estimated completion is 2022-03-01.

What interventions are being tested in trial NCT04177758?

The interventions under investigation include: Control (DRUG), Vitamin D (DRUG).

Who is sponsoring clinical trial NCT04177758?

This trial is sponsored by Rush University Medical Center, which has 320 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04177758's enrollment target sits among peer trials

137 594th of 2000 higher than 1,405 of 2,000 other Phase 4 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 4 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

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Source: ClinicalTrials.gov NCT04177758, the US trial registry maintained by the National Library of Medicine. NCT04177758 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.