deltatrials
Completed PHASE3 INTERVENTIONAL NCT00355589

Ramipril and Hydrochlorothiazide Alone and in Combination for the Treatment of Essential Hypertension

A Randomized, Double-Blind, Multicenter, Parallel Study Evaluating the Efficacy and Safety of a Combination of Ramipril Plus Hydrochlorothiazide Versus the Component Monotherapies in Subjects With Essential Hypertension

Sponsor: Pfizer

Conditions Blood Pressure, High Hypertension
Interventions Ramipril and hydrochlorothiazide
Updated 7 times since 2017 Last updated: Oct 8, 2012 Started: Jul 31, 2006 Primary completion: Mar 31, 2007 Completion: Mar 31, 2007
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT00355589, this PHASE3 trial focuses on Blood Pressure, High and Hypertension and remains completed. Sponsored by Pfizer, it has been updated 7 times since 2006, reflecting limited change activity. This study contributes longitudinal data to the cardiovascular research landscape.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotCompleted~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshotCompleted~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotCompleted~Jan 2021 – ~Jul 2024 · 42 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 10 months · monthly snapshotCompleted

Change History

7 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed PHASE3

  2. Sep 2024 — Sep 2025 [monthly]

    Completed PHASE3

  3. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE3

  4. Jan 2021 — Jul 2024 [monthly]

    Completed PHASE3

  5. Jun 2018 — Jan 2021 [monthly]

    Completed PHASE3

▶ Show 2 earlier versions

  1. Feb 2017 — Jun 2018 [monthly]

    Completed PHASE3

  2. Jan 2017 — Feb 2017 [monthly]

    Completed PHASE3

    First recorded

Jul 2006

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Pfizer
Data source: Pfizer

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

Study Locations

Atlanta, United States , Austin, United States , Beverly Hills, United States , Birmingham, United States , Brooklyn Center, United States , Buena Park, United States , Carrollton, United States , Charleston, United States , Chicago, United States , Cincinnati, United States and 44 more locations