Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT00668447 · ClinicalTrials.gov registry record · Phase 4
Soy and Isoflavones Effect on Bone
A Phase 4 study, sponsored by United States Department of Agriculture (USDA).
- Completed
- Registry status
- Phase 4
- Development phase
- 97
- Enrollment target
NCT00668447: Completed Phase 4 study, sponsored by United States Department of Agriculture (USDA).
NCT00668447 is a Phase 4 study that has completed, run by United States Department of Agriculture (USDA). The registered enrollment target is 97 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (81% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00668447, a Phase 4 study, has completed, sponsored by United States Department of Agriculture (USDA).
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 97 participants
- Enrollment target
Study Summary
The purpose of this study is to test the effect of 1 year of added dietary soy protein and/or soy isoflavones on bone mineral density in late postmenopausal women.
Interventions
- DIETARY_SUPPLEMENT Placebo tablets
- DIETARY_SUPPLEMENT Control protein
- DIETARY_SUPPLEMENT Soy Isolate
- DIETARY_SUPPLEMENT Novasoy isoflavones
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 97 participants |
| Start Date | 2001-11 |
| Est. Completion | 2005-06 |
| Phase | Phase 4 |
What the finished NCT00668447 record still lists
NCT00668447 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 97 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (81% lower).
The record links to 0 conditions, and to 4 interventions - of which Placebo tablets is the first listed.
NCT00668447 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00668447 about?
NCT00668447 is a clinical study titled "Soy and Isoflavones Effect on Bone". The purpose of this study is to test the effect of 1 year of added dietary soy protein and/or soy isoflavones on bone mineral density in late postmenopausal women.
What is the current status of trial NCT00668447?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 97 participants. The study started on 2001-11. Estimated completion is 2005-06.
What interventions are being tested in trial NCT00668447?
The interventions under investigation include: Placebo tablets (DIETARY_SUPPLEMENT), Control protein (DIETARY_SUPPLEMENT), Soy Isolate (DIETARY_SUPPLEMENT), Novasoy isoflavones (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT00668447?
This trial is sponsored by United States Department of Agriculture (USDA), which has 11 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00668447's enrollment target sits among peer trials
97 861st of 2000 higher than 1,138 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
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
- NCT03948490 · 97 participants · NA
Rehabilitation and Longitudinal Follow-up of Cognition in Adult Lower Grade Gliomas
- NCT04140487 · 97 participants · Phase 1
Azacitidine, Venetoclax, and Gilteritinib in Treating Patients With Recurrent/Refractory FLT3-Mutated Acute Myeloid Leukemia, Chronic Myelomonocytic Leukemia, or High-Risk Myelodysplastic Syndrome/Myeloproliferative Neoplasm
- NCT04196413 · 97 participants · Phase 1
GD2 CAR T Cells in Diffuse Intrinsic Pontine Gliomas (DIPG) & Spinal Diffuse Midline Glioma(DMG)
- NCT05223816 · 97 participants · Phase 2
An Open-Label, Multiple-Center, Phase IIa/IIb Clinical Trial to Evaluate the Efficacy, Safety and Tolerability of VG161 as Monotherapy and in Combination With Nivolumab for Treatment of Patients With Hepatocellular Carcinoma or Intrahepatic Cholangiocarcinoma
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