Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00591266 · ClinicalTrials.gov registry record · Phase 3

Efficacy and Safety of Azilsartan Medoxomil, Once Daily (QD), Co-Administered With Amlodipine in Participants With Essential Hypertension

A Phase 3 study of Hypertension, sponsored by Takeda.

Completed
Registry status
Phase 3
Development phase
566
Enrollment target
20
Study locations

NCT00591266: Completed Phase 3 study of Hypertension, sponsored by Takeda.

NCT00591266 is a Phase 3 study of Hypertension that has completed, run by Takeda. The registered enrollment target is 566 participants, below the 3,506-participant average among 470 other Hypertension trials with a reported enrollment target (84% lower). The trial reports 20 study locations across 9 states. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00591266, a Phase 3 study of Hypertension, has completed, sponsored by Takeda.

COMPLETED
Registry status
Phase 3
Development phase
566 participants
Enrollment target
20
Study locations

Study Summary

The purpose of this study is to evaluate the efficacy and safety of azilsartan medoxomil, once daily (QD), co-administered with amlodipine in treating individuals with essential hypertension, compared to treatment with amlodipine alone.

Primary Outcome

The change in 24-hour mean systolic blood pressure measured at week 6 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 24-hour mean is the average of all measurements recorded for 24 hours after dosing.

Conditions Studied

Interventions

  • DRUG Amlodipine
  • DRUG Azilsartan Medoxomil and amlodipine

Study Locations (20)

California

  • - Anaheim
  • - Beverly Hills
  • - Burbank
  • - Burlingame
  • - La Jolla
  • - Orange
  • - Roseville
  • - Tustin

Florida

  • - Hialeah
  • - Longwood
  • - Tampa

Arizona

  • - Mesa
  • - Phoenix

Illinois

  • - Chicago
  • - Gurnee

Colorado

  • - Wheat Ridge

Delaware

  • - Newark

District of Columbia

  • - Washington D.C.

Hawaii

  • - Honolulu

Trial Details

FieldValue
Enrollment Target 566 participants
Start Date 2007-10
Est. Completion 2009-04
Phase Phase 3
Takeda

408 total trials

What the finished NCT00591266 record still lists

NCT00591266 is an interventional study that assigns participants to a tested intervention. The registered 566 participants enrollment target is mid-sized for trials with a published cap, below the 3,506-participant average among 470 other Hypertension trials with a reported enrollment target (84% lower).

The record links to 1 condition, with Hypertension appearing as the primary indexed condition, and to 2 interventions - of which Amlodipine is the first listed.

NCT00591266 names 20 study sites across 9 states, led by California, Florida, Arizona.

Frequently Asked Questions

What is clinical trial NCT00591266 about?

NCT00591266 is a clinical study titled "Efficacy and Safety of Azilsartan Medoxomil, Once Daily (QD), Co-Administered With Amlodipine in Participants With Essential Hypertension". The purpose of this study is to evaluate the efficacy and safety of azilsartan medoxomil, once daily (QD), co-administered with amlodipine in treating individuals with essential hypertension, compared to treatment with amlodipine alone.

What is the current status of trial NCT00591266?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 566 participants. The study started on 2007-10. Estimated completion is 2009-04.

What conditions does trial NCT00591266 study?

This clinical trial studies the following conditions: Hypertension.

What interventions are being tested in trial NCT00591266?

The interventions under investigation include: Amlodipine (DRUG), Azilsartan Medoxomil and amlodipine (DRUG).

Who is sponsoring clinical trial NCT00591266?

This trial is sponsored by Takeda, which has 408 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00591266 being conducted?

This trial has 20 study locations across Arizona, California, Colorado, Delaware, District of Columbia. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Hypertension

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00591266's enrollment target sits among peer trials

566 104th of 470 higher than 367 of 470 other Hypertension trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Hypertension 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

  • NCT05472441 · 568 participants · NA

    Linking Education, Produce Provision, and Community Referrals to Improve Diabetes Care (LINK)

  • NCT06146725 · 564 participants

    The RESBIOP-study: Resection Versus Biopsy in High-grade Glioma Patients (ENCRAM 2202)

  • NCT06188520 · 564 participants · Phase 1

    A First-in-human Dose Escalation and Expansion Study to Evaluate the Safety, and Tolerability of AZD8421 Alone or in Combination in Participants With Selected Advanced or Metastatic Solid Tumors

  • NCT06628453 · 564 participants · NA

    CGM for Management of Type 2 Diabetes in Pregnancy

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

Source: ClinicalTrials.gov NCT00591266, the US trial registry maintained by the National Library of Medicine. NCT00591266 (mid enrollment · wide site footprint · completed) retrieved and formatted by PlainTrial, see methodology.