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HealthyPhase 1NCT01265732

A Comparison Of The Pharmacokinetics Of PF-04191834 Following Single Dose Administration Of A Dispersion Formulation And A Suspension Formulation In Healthy Volunteers

A Phase 1 study testing PF-04191834 in people with Healthy, run by Pfizer.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This study investigates the safety, tolerability and pharmacokinetics of PF-04191834 when respectively given orally as a single dispersion dose and a single dose of a suspension. The suspension is the test formulation and the dispersion is the formulation with which the novel preparation will be compared. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
PF-04191834
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Dec 2010to Jan 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 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy male and/or female subjects of non-childbearing potential between the ages of 18 and 55 years, inclusive. Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG or clinical laboratory tests.
  • Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg(110 lbs).

Who cannot join

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing).
  • Clinical evidence of existing hepatic disease or a medical history of such a condition in the last year. Subjects with AST or ALT >ULN. Subjects with total bilirubin >ULN (except those with a documented history of Gilbert's Syndrome). Subjects with AST/ALT/total bilirubin >ULN and <1.5X ULN may be retested once.
  • Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication;
  • Use of tobacco- or nicotine-containing products in excess of the equivalent of 5 cigarettes per day;
  • Females of childbearing potential.
  • Subjects with positive responses (score 1) for suicidality on the Sheehan Suicidality Tracking Scale (S-STS) (specifically items 1a, 1b, 3, 4, 5, 6, 7, or 9).

About this study

Official title: An Open Label, Randomized 3-Way Crossover Single Dose Study To Compare The Pharmacokinetics And Relative Bioavailability Of PF-04191834 Using An Oral Wet-Milled Suspension Formulation Versus An Oral Single Dose Dispersion Formulation Under Fasted Conditions In Healthy Volunteers

This study investigates the safety, tolerability and pharmacokinetics of PF-04191834 when respectively given orally as a single dispersion dose and a single dose of a suspension. The suspension is the test formulation and the dispersion is the formulation with which the novel preparation will be compared.

Conditions
Healthy
Being tested
PF-04191834
Keywords
Phase 1, relative bioavailability, healthy volunteers, pharmacokinetics, suspension, dispersion

What participants receive

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

  • PF-04191834Drug

    single dose, 100mg, dispersion

  • PF-04191834Drug

    single dose, 100mg, suspension

  • PF-04191834Drug

    single dose, 300mg, suspension

Study groups in NCT01265732
Study groupRoleWhat they receive
oral single dose dispersion 100mgActive comparatorSubjects receive a single dose of PF-04191834 as a dispersion
Receives: Drug: PF-04191834
oral wet milled suspension 100mgActive comparatorSubjects receive a single dose of PF-04191834 as a suspension
Receives: Drug: PF-04191834
oral wet milled suspension 300mgActive comparatorSubjects receive a single dose of PF-04191834 as a suspension
Receives: Drug: PF-04191834

What is being measured

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

  1. Time of maximum concentration(Tmax) of PF-04191834 in plasma.

    Measured: 3 days

  2. Area under the curve (AUClast) from the time of dosing to the last data point taken for PF-04191834.

    Measured: 3 days

  3. Area under the curve from the time of dosing extrapolated to infinity(AUCinf) of PF-04191834.

    Measured: 3 days

Secondary outcomes (4)
  1. Maximum concentration (Cmax) for PF-04191834 in plasma.

    Measured: 3 days

  2. Elimination half-life (t1/2) of PF-04191834

    Measured: 3 days

  3. Sheehan suicidality tracking scale (SSTS)

    Measured: Screening and last Day of Period 3

  4. Number of adverse events in patients as a measure of safety and tolerability.

    Measured: Throughout the study.

Timeline

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

  1. First posted23 Dec 2010 (estimated)
  2. Study startDec 2010
  3. Primary completionJan 2011 (estimated)
  4. Study completionJan 2011 (estimated)

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
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01265732
Sponsor's protocol ID
B0041012
Status last verified
Oct 2015
First submitted
30 Nov 2010
Last updated
16 Oct 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing PF-04191834 in people with Healthy, run by Pfizer.

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 2 inclusion and 6 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: withdrawn, as of the sponsor's last update on 16 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.

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 was withdrawn before enrolling participants, so there are no results.

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?

Time of maximum concentration(Tmax) of PF-04191834 in plasma. (time frame: 3 days). The study lists 3 primary outcomes in all. 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 16 Oct 2015.

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