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NCT00003623 · ClinicalTrials.gov registry record · Phase 3

High-Dose Multivitamins Compared to a Placebo in Preventing the Recurrence of Cancer in Patients With Early Stage Bladder Cancer

A Phase 3 study, sponsored by Alliance for Clinical Trials in Oncology.

Completed
Registry status
Phase 3
Development phase
21
Enrollment target

NCT00003623: Completed Phase 3 study, sponsored by Alliance for Clinical Trials in Oncology.

NCT00003623 is a Phase 3 study that has completed, run by Alliance for Clinical Trials in Oncology. The registered enrollment target is 21 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00003623, a Phase 3 study, has completed, sponsored by Alliance for Clinical Trials in Oncology.

COMPLETED
Registry status
Phase 3
Development phase
21 participants
Enrollment target

Study Summary

RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. The use of high-dose multivitamins may be an effective way to prevent the recurrence of early stage bladder cancer. It is not yet known whether high-dose vitamins are more effective than no further therapy in decreasing the risk of early-stage bladder cancer. PURPOSE: Randomized double-blinded phase III trial to compare the effectiveness of high-dose multivitamins with a placebo in preventing the recurrence of cancer in patients with early stage bladder cancer.

Interventions

  • OTHER Placebo
  • DIETARY_SUPPLEMENT multivitamin

Trial Details

FieldValue
Enrollment Target 21 participants
Start Date 1999-10
Est. Completion 2003-03
Phase Phase 3

What the finished NCT00003623 record still lists

NCT00003623 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 21 participants, a relatively small participant target, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (97% lower).

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

NCT00003623 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00003623 about?

NCT00003623 is a clinical study titled "High-Dose Multivitamins Compared to a Placebo in Preventing the Recurrence of Cancer in Patients With Early Stage Bladder Cancer". RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. The use of high-dose multivitamins may be an effective way to prevent the recurrence of early stage bladder cancer. It is not yet known whether high-dose vitamins are more effect...

What is the current status of trial NCT00003623?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 21 participants. The study started on 1999-10. Estimated completion is 2003-03.

What interventions are being tested in trial NCT00003623?

The interventions under investigation include: Placebo (OTHER), multivitamin (DIETARY_SUPPLEMENT).

Who is sponsoring clinical trial NCT00003623?

This trial is sponsored by Alliance for Clinical Trials in Oncology, which has 446 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00003623's enrollment target sits among peer trials

21 1953rd of 2000 higher than 45 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

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Source: ClinicalTrials.gov NCT00003623, the US trial registry maintained by the National Library of Medicine. NCT00003623 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.