Completed PHASE2 INTERVENTIONAL 4-arm NCT00909545

Safety, Tolerability and Efficacy Assessment of Dynacirc CR in Parkinson Disease (STEADY-PD)

A Pilot Phase II Double-Blind, Placebo-Controlled, Tolerability and Dosage Finding Study of Isradipine CR as a Disease Modifying Agent in Patients With Early Parkinson Disease

Sponsor: Michael J. Fox Foundation for Parkinson's Research

Conditions Parkinson Disease

Interventions Isradipine CR 10mg Isradipine CR 20mg Isradipine CR 5mg Placebo

Updated 8 times since 2017 Last updated: Apr 16, 2013 Started: Jul 31, 2009 Primary completion: Dec 31, 2011 Completion: Feb 29, 2012

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

Listed as NCT00909545, this PHASE2 trial focuses on Parkinson Disease and remains completed. Sponsored by Michael J. Fox Foundation for Parkinson's Research, it has been updated 8 times since 2009, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

Change History

8 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE2
Sep 2024 — Sep 2025 [monthly]

Completed PHASE2
Jul 2024 — Sep 2024 [monthly]

Completed PHASE2
Jan 2023 — Jul 2024 [monthly]

Completed PHASE2
Dec 2022 — Jan 2023 [monthly]

Completed PHASE2

▶ Show 3 earlier versions

Jan 2021 — Dec 2022 [monthly]

Completed PHASE2
Jun 2018 — Jan 2021 [monthly]

Completed PHASE2
Jan 2017 — Jun 2018 [monthly]

Completed PHASE2

First recorded

Jul 2009

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Michael J. Fox Foundation for Parkinson's Research
Northwestern University
Northwestern University Dixon Fund
The Parkinson Study Group

Data source: Northwestern University

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

Study Locations

Atlanta, United States , Boston, United States , Chicago, United States , Cincinnati, United States , East Lansing, United States , Golden Valley, United States , Honolulu, United States , Jacksonville, United States , Memphis, United States , Miami, United States and 9 more locations