Completed OBSERVATIONAL NCT00040378

Prevention of Alzheimer's Disease by Vitamin E and Selenium (PREADVISE)

Sponsor: Frederick Schmitt

Interventions Placebo replacement for Selenium Placebo replacement for vitamin E Selenium alphatocopherol

Updated 9 times since 2017 Last updated: Mar 12, 2018 Started: May 31, 2002 Primary completion: Jan 31, 2014 Completion: Aug 31, 2016

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A observational or N/A phase clinical study on Alzheimer Disease, this trial is completed. The trial is conducted by Frederick Schmitt and has accumulated 9 data snapshots since 2002. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

Change History

9 versions recorded

Sep 2025 — Present [monthly]

Completed
Sep 2024 — Sep 2025 [monthly]

Completed
Jul 2024 — Sep 2024 [monthly]

Completed
Jan 2021 — Jul 2024 [monthly]

Completed
Jun 2018 — Jan 2021 [monthly]

Completed

▶ Show 4 earlier versions

Apr 2018 — Jun 2018 [monthly]

Completed

Phase: NA → None
Mar 2018 — Apr 2018 [monthly]

Completed NA

Phase: PHASE3 → NA
Dec 2017 — Mar 2018 [monthly]

Completed PHASE3

Status: Unknown Status → Completed
Jan 2017 — Dec 2017 [monthly]

Unknown Status PHASE3

First recorded

May 2002

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Frederick Schmitt
National Cancer Institute (NCI)
National Institute on Aging (NIA)

Data source: University of Kentucky

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Abington, United States , Adrian, United States , Albany, United States , Allentown, United States , Ames, United States , Anchorage, United States , Annapolis, United States , Ashland, United States , Bellingham, United States , Bethlehem, United States and 65 more locations