Hepatic InsufficiencyPhase 1NCT00692341
Evaluation Of Hepatic Impairment On AG-013736 Pharmacokinetics
A Phase 1 study testing AG-013736 in people with Hepatic Insufficiency, run by Pfizer at 2 sites in United States.
Trial summary
This study will evaluate the effects of mild and moderate impairment of hepatic function on the single-dose pharmacokinetics, safety and tolerability of AG-013736. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Hepatic Insufficiency
- What is being tested?
- AG-013736
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 24 participants
- Where
- 2 sitesUnited States
- Study dates
- May 2008to Oct 2008
- 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 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Diagnosis of reduced hepatic function (Child Pugh Classification A or B)
- Body Mass Index of 18-32 kg/m2
Who cannot join
- History of febrile illness within 5 days prior to first dose
- Any condition possibly affecting drug absorption (e.g. gastrectomy)
- Positive urine drug screen
Trial locations and contacts
2 sites in 1 country.
United States2 sites
Pfizer Investigational Site
Miami, Florida, 33169
Pfizer Investigational Site
Orlando, Florida, 32809
About this study
Official title: A Phase 1 Study To Evaluate The Pharmacokinetics Of AG-013736 In Subjects With Impaired Hepatic Function
This study will evaluate the effects of mild and moderate impairment of hepatic function on the single-dose pharmacokinetics, safety and tolerability of AG-013736.
- Conditions
- Hepatic Insufficiency
- Being tested
- AG-013736
- Keywords
- hepatic impairment
- Medical subject headings
- Hepatic Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AG-013736Drug
Single oral 5-mg dose of AG-013736, administered as a film-coated, immediate-release tablet.
AG-013736Drug
Single oral 5-mg dose of AG-013736, administered as a film-coated, immediate-release tablet.
AG-013736Drug
Single oral 5-mg dose of AG-013736, administered as a film-coated, immediate-release tablet.
| Study group | Role | What they receive |
|---|---|---|
| Hepatic Function - Mild Impairment | Experimental | Subjects with mild hepatic impairment (Child Pugh class A, score 5-6) Receives: Drug: AG-013736 |
| Hepatic Function - Moderate Impairment | Experimental | Subjects with moderate hepatic impairment(Child Pugh class B,score 7-9) Receives: Drug: AG-013736 |
| Hepatic Function - Normal | Experimental | Group 1
1) subjects with normal hepatic function Receives: Drug: AG-013736 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximum Observed Plasma Concentration (Cmax)
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hours (hrs) post-dose
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)]
AUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Secondary outcomes (11)
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: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Plasma Elimination Half-life (t1/2)
Plasma elimination half-life is the time measured for the plasma concentration to decrease by one half.
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
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 oral bioavailability. 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: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
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 oral bioavailability.
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Fraction of Unbound Drug (fu)
Fraction of unbound drug (fu) is defined as the ratio of unbound drug concentration to the total drug concentration.
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Apparent Oral Clearance (CLu/F)
Clearance of an unbound drug is a measure of the rate at which an unbound drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the oral bioavailability. Unbound drug clearance is a quantitative measure of the rate at which an unbound drug substance is removed from the blood.
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Apparent Volume of Distribution (Vzu/F)
Volume of distribution of unbound drug is defined as the theoretical volume in which the total amount of unbound drug would need to be uniformly distributed to produce the desired plasma concentration of unbound drug. Unbound apparent volume of distribution after oral dose (Vzu/F) is influenced by the oral bioavailability.
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)u]
AUC (0 - ∞)u = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞) for unbound drug. It is obtained from AUCu (0 - t) plus AUCu (t - ∞).
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClastu)
Area under the plasma concentration time-curve from zero to the last measured concentration (AUClastu) for unbound drug.
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Maximum Observed Plasma Concentration (Cmaxu)
Cmaxu is the highest measured unbound plasma concentration during the dosing interval.
Measured: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Jun 2008 (estimated)
- Study startMay 2008
- Primary completionOct 2008
- Study completionOct 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Hepatic InsufficiencyStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00692341
- Sponsor's protocol ID
- A4061036
- Status last verified
- Apr 2012
- First submitted
- 4 Jun 2008
- Last updated
- 11 Apr 2012
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 11 Apr 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 1 Study To Evaluate The Pharmacokinetics Of AG-013736 In Subjects With Impaired Hepatic Function
- ClinicalTrials.gov ID
- NCT00692341
- Acronym / sponsor ID
- A4061036
- Conditions
- Hepatic Insufficiency
- Keywords
- hepatic impairment
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- May 2008
- Primary completion
- Oct 2008 (actual)
- Study completion
- Oct 2008 (actual)
- First posted
- 6 Jun 2008 (estimated)
- Results
- Posted 27 Mar 2012
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will evaluate the effects of mild and moderate impairment of hepatic function on the single-dose pharmacokinetics, safety and tolerability of AG-013736.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Hepatic Function - Mild Impairment | Experimental | Drug: AG-013736Subjects with mild hepatic impairment (Child Pugh class A, score 5-6) |
| Hepatic Function - Moderate Impairment | Experimental | Drug: AG-013736Subjects with moderate hepatic impairment(Child Pugh class B,score 7-9) |
| Hepatic Function - Normal | Experimental | Drug: AG-013736Group 1 1) subjects with normal hepatic function |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Diagnosis of reduced hepatic function (Child Pugh Classification A or B)
- Body Mass Index of 18-32 kg/m2
Key exclusion criteria (3 listed)
- History of febrile illness within 5 days prior to first dose
- Any condition possibly affecting drug absorption (e.g. gastrectomy)
- Positive urine drug screen
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AG-013736Single oral 5-mg dose of AG-013736, administered as a film-coated, immediate-release tablet. | Drug | Hepatic Function - Mild Impairment |
| AG-013736Single oral 5-mg dose of AG-013736, administered as a film-coated, immediate-release tablet. | Drug | Hepatic Function - Moderate Impairment |
| AG-013736Single oral 5-mg dose of AG-013736, administered as a film-coated, immediate-release tablet. | Drug | Hepatic Function - Normal |
Primary outcome
Maximum Observed Plasma Concentration (Cmax)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hours (hrs) post-dose
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)]
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
AUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).
11 secondary outcomes
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Plasma Elimination Half-life (t1/2)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Apparent Oral Clearance (CL/F)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Apparent Volume of Distribution (Vz/F)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Fraction of Unbound Drug (fu)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Apparent Oral Clearance (CLu/F)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Apparent Volume of Distribution (Vzu/F)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)u]
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClastu)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Unbound Maximum Observed Plasma Concentration (Cmaxu)
Time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hrs post-dose
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Apr 2012.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing AG-013736 in people with Hepatic 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 11 Apr 2012. 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 27 Mar 2012). 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?
Maximum Observed Plasma Concentration (Cmax) (time frame: 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 12, 16, 24, 36, 48, 96 and 144 hours (hrs) post-dose). The study lists 2 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 11 Apr 2012.