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Renal InsufficiencyPhase 1NCT01791855

PF-04634817 Renal Impairment Study

A Phase 1 study testing PF-04634817 in people with Renal Insufficiency, run by Pfizer at 2 sites in United States.

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

Patients with renal impairment are the target population for PF-04634817. The clearance mechanism of this drug means that exposure may be increased in subjects with renal impairment. This study will investigate the effect of the drug in subjects with varying degrees of renal impairment. Read more about this study

Who is it for?
Ages 18 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Renal Insufficiency
What is being tested?
PF-04634817
Could I receive a placebo?
No, everyone receives an active treatment
How many people
32 participants
Where
2 sitesUnited States
Study dates
10 May 2013to 3 Sep 2013
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male or female (non child bearing potential aged 18-75 years
  • Documented renal impairment (mild, moderate or severe using Cockcroft-Gault equation) or matched healthy volunteers (age, weight and gender)

Who cannot join

  • Subjects with acute renal failure
  • Subjects receiving, or likely to receive, CYP450 3A4 inhibitors
  • Abnormal ECG at screening

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Avail Clinical Research, LLC

    DeLand, Florida, 32720

  • Unversity of Miami

    Miami, Florida, 33136

Other trials in United States

About this study

Official title: A PHASE 1, SINGLE DOSE, OPEN-LABEL STUDY TO EVALUATE THE EFFECT OF RENAL IMPAIRMENT ON THE PHARMACOKINETICS OF PF-04634817

Patients with renal impairment are the target population for PF-04634817. The clearance mechanism of this drug means that exposure may be increased in subjects with renal impairment. This study will investigate the effect of the drug in subjects with varying degrees of renal impairment. Pharmacokinetics, safety and toleration will be assessed.

Being tested
PF-04634817
Keywords
Subjects with Renal Impairment, healthy
Medical subject headings
Renal Insufficiency

What participants receive

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

  • PF-04634817Drug

    Single 50 mg dose administered to subjects with normal renal function (creatinine clearance greater than or equal to 90 ml/min)

  • PF-04634817Drug

    Single 50 mg dose administered to subjects with mild renal impairment (creatinine clearance 60-89 ml/min)

  • PF-04634817Drug

    Single 50 mg dose administered to subjects with moderate renal impairment (creatinine clearance 30-59 ml/min)

  • PF-04634817Drug

    Single 50 mg dose administered to subjects with severe renal impairment (creatinine clearance 15-29 ml/min)

Study groups in NCT01791855
Study groupRoleWhat they receive
Healthy VolunteersExperimentalNot described
Receives: Drug: PF-04634817
Mild Renal ImpairmentExperimentalNot described
Receives: Drug: PF-04634817
Moderate renal impairmentExperimentalNot described
Receives: Drug: PF-04634817
Severe renal impairmentExperimentalNot described
Receives: Drug: PF-04634817

What is being measured

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

  1. Area Under the Curve From Time Zero to 48 Hours[AUC (0 - 48)]

    AUC (0 - 48)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to 48hours.

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

  2. Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)

    Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast).

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

  3. Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - Inf)]

    AUC (0 - inf)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time.

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

  4. Apparent Oral Clearance (CL/F)

    Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population PK modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

  5. Maximum Observed Plasma Concentration (Cmax)

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

  6. Time to Reach Maximum Observed Plasma Concentration (Tmax)

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

  7. Apparent Volume of Distribution (Vz/F)

    Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

  8. Plasma Decay Half-Life (t1/2)

    Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

    Measured: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose

Secondary outcomes (3)
  1. Amount of Unchanged Drug Excreted in Urine Over 48 Hours (Ae48)

    Amount of unchanged drug excreted in urine over 48 hours (Ae48) = urine concentration x volume of urine.

    Measured: 0-24, 24-48 hours post dose

  2. Percentage of the Dose Excreted Unchanged in the Urine Over 48 Hours (Ae48%)

    Percentage (%) of drug excreted unchanged in urine over 48 hours (Ae48%) = Ae48/(dose x 100).

    Measured: 0-24, 24-48 post dose

  3. Renal Clearance Over a 48-hour Interval(CLr48)

    Renal clearance over a 48-hour interval (CLr48) = Ae48/AUC48.

    Measured: 0-24, 24-48 hours post dose

Timeline

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

  1. First posted15 Feb 2013 (estimated)
  2. Study start10 May 2013
  3. Primary completion3 Sep 2013
  4. Study completion3 Sep 2013

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
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01791855
Sponsor's protocol ID
B1261008
Other IDs
2013-000360-29
Status last verified
Aug 2023
First submitted
12 Feb 2013
Last updated
1 Mar 2024
Data monitoring committee
No
Individual data sharing
No: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Publications

  • Tesch GH, Pullen N, Jesson MI, Schlerman FJ, Nikolic-Paterson DJ. Combined inhibition of CCR2 and ACE provides added protection against progression of diabetic nephropathy in Nos3-deficient mice. Am J Physiol Renal Physiol. 2019 Dec 1;317(6):F1439-F1449. doi: 10.1152/ajprenal.00340.2019. Epub 2019 Sep 30.

    PubMed 31566438

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing PF-04634817 in people with Renal Insufficiency, run by Pfizer at 2 sites in United States.

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 3 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 1 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. 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?

Yes. Results are posted in the registry (first posted 1 Mar 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Area Under the Curve From Time Zero to 48 Hours[AUC (0 - 48)] (time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 8, 12, 16, 24, 32, 40, 48, 56, 64, 72, 84, 96, 108, 120, 132, 144, 156, 216, 312 hours post dose). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01791855, which also lists 1 linked publication.

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 1 Mar 2024.

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