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AzTrials

HypertensionPhase 1NCT01389609

Bioequivalence Study of Doxazosin 4 Mg Orally-Disintegrating Tablet With Or Without Water To Doxazosin 4 Mg Japanese Marketed Immediate Release Tablet Under Fasted Condition

A Phase 1 study testing Doxazosin 4 mg Japanese marketed IR tablet, Doxazosin 4 mg ODT with water and Doxazosin 4 mg ODT without water in people with Hypertension, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 1 site in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To test bioequivalence of Doxazosin 4 Mg Orally-disintegrating Tablet with Or Without Water to Doxazosin 4 Mg Japanese Marketed Immediate Release Tablet Under Fasted Condition Read more about this study

Who is it for?
Ages 20 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Hypertension
What is being tested?
Doxazosin 4 mg Japanese marketed IR tablet, Doxazosin 4 mg ODT with water and Doxazosin 4 mg ODT without water
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
1 siteJapan
Study dates
Jul 2011to Aug 2011
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Japanese healthy male subjects

Who cannot join

  • Baseline orthostatic hypotension defined as a ≥20 mm Hg reduction in SBP, a ≥10 mm Hg reduction in DBP and/or the development of significant postural symptoms (dizziness, lightheadedness, vertigo) when going from the supine to standing position.

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Pfizer Investigational Site

    Shinjuku-ku, Tokyo

Other trials in Japan

About this study

Official title: Phase 1, Open-Label, Randomized, Single-Dose, 3-Way Crossover Study Assessing Bioequivalence Of Doxazosin 4 Mg Orally-Disintegrating Tablet With Or Without Water To Doxazosin 4 Mg Japanese Marketed Immediate Release Tablet Under Fasted Condition

To test bioequivalence of Doxazosin 4 Mg Orally-disintegrating Tablet with Or Without Water to Doxazosin 4 Mg Japanese Marketed Immediate Release Tablet Under Fasted Condition

Conditions
Hypertension
Being tested
Doxazosin 4 mg Japanese marketed IR tablet, Doxazosin 4 mg ODT with water, Doxazosin 4 mg ODT without water
Keywords
Bioequivalence, Orally-disintegrating Tablet
Medical subject headings
Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Doxazosin 4 mg Japanese marketed IR tabletDrug

    Immediate release tablet, 4 mg, single dose

  • Doxazosin 4 mg ODT with waterDrug

    Orally-disintegrating Tablet , 4 mg, single dose with water

  • Doxazosin 4 mg ODT without waterDrug

    Orally-disintegrating Tablet , 4 mg, single dose without water

Study groups in NCT01389609
Study groupRoleWhat they receive
AExperimentalDoxazosin 4 mg Japanese marketed IR tablet as a single oral dose under fasted conditions
Receives: Drug: Doxazosin 4 mg Japanese marketed IR tablet
BExperimentalDoxazosin 4 mg ODT with water as a single oral dose under fasted conditions
Receives: Drug: Doxazosin 4 mg ODT with water
CExperimentalDoxazosin 4 mg ODT without water as a single oral dose under fasted conditions
Receives: Drug: Doxazosin 4 mg ODT without water

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Peak plasma concentration (Cmax) and AUC from zero to the last sampling point (AUCt) of doxazosin 4 mg Orally Disintegrating Tablet (ODT) without water compared to doxazosin 4 mg Japanese marketed Immediate Release (IR) tablet under fasted conditions

    Measured: up to 48 hours

Secondary outcomes (3)
  1. Cmax and AUCt of doxazosin 4 mg ODT with water compared to doxazosin 4 mg Japanese marketed IR tablet under fasted conditions.

    Measured: up to 48 hours

  2. Other Pharmacokinetic (PK) parameters (Tmax, AUC from zero to infinity (AUCinf), AUC from zero to the last measurable point (AUClast), elimination rate constant (Kel), t½, and mean residence time (MRT) of doxazosin under all forms of

    Measured: up to 48 hours

  3. administration.

    Measured: up to 48 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Jul 2011 (estimated)
  2. Study startJul 2011
  3. Primary completionAug 2011
  4. Study completionAug 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01389609
Sponsor's protocol ID
A0351069
Status last verified
Jan 2021
First submitted
5 Jul 2011
Last updated
29 Jan 2021
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Doxazosin 4 mg Japanese marketed IR tablet, Doxazosin 4 mg ODT with water and Doxazosin 4 mg ODT without water in people with Hypertension, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 1 site in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Peak plasma concentration (Cmax) and AUC from zero to the last sampling point (AUCt) of doxazosin 4 mg Orally Disintegrating Tablet (ODT) without water compared to doxazosin 4 mg Japanese marketed Immediate Release (IR) tablet under fasted conditions (time frame: up to 48 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Jan 2021.

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