ObesityPhase 1NCT00645216
Study Examing The Effect of Grapefruit Juice On The Blood And Urine Samples of Study Drug And Its By Product And Safety
A Phase 1 study testing CP-945,598 in people with Obesity, run by Pfizer at 1 site in United States.
Trial summary
CP-945,598 is eliminated primarily by enzyme CYP3A. Grapefruit juice may affect the activity of CYP3A and alter the amount of CP-945,598 in the blood. This study will therefore compare the time course of drug concentrations in the body, safety and tolerability of CP-945,598 given with or without grapefruit juice in… Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Obesity
- What is being tested?
- CP-945,598
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 28 participants
- Where
- 1 siteUnited States
- Study dates
- Jun 2007to Oct 2007
- 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 female subjects between the ages of 18 and 55 years.
- Body Mass Index (BMI) of 27 to 40 kg/m2.
- Willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other trial procedures.
Who cannot join
- Non-prescribed use of drugs of abuse/ recreational drugs;
- Recent treatment with experimental drugs or herbal experiments;
- EKG and blood pressure parameters falling outside of protocol-specified limits;
- History of regular alcohol or tobacco use exceeding protocol-specified limits; grapefruit juice intolerance.
Trial locations and contacts
1 site in 1 country.
United States1 site
Pfizer Investigational Site
New Haven, Connecticut, 06511
About this study
Official title: A Phase 1, Open Label, Randomized, Fixed Sequence Study To Evaluate The Effect Of Multiple Dose Administration Of Grapefruit Juice On The Multiple Dose Pharmacokinetics Of CP-945,598 In Healthy Overweight And Obese Subjects
CP-945,598 is eliminated primarily by enzyme CYP3A. Grapefruit juice may affect the activity of CYP3A and alter the amount of CP-945,598 in the blood. This study will therefore compare the time course of drug concentrations in the body, safety and tolerability of CP-945,598 given with or without grapefruit juice in healthy obese/overweight subjects.
- Conditions
- Obesity
- Being tested
- CP-945,598
- Medical subject headings
- Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CP-945,598Drug
Subjects take CP-945,598 alone for 21 days
CP-945,598Drug
Subjects take CP-945,598 from Days 1 to 7, then take CP-945,598 and Grapefruit Juice from Days 8 to 21
| Study group | Role | What they receive |
|---|---|---|
| CP-945,598 with Grapefruit Juice | Experimental | CP-945,598 with Grapefruit Juice Receives: Drug: CP-945,598 |
| CP-945,598 alone | Experimental | CP-945,598 alone Receives: Drug: CP-945,598 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Measurement of durg and metabolite concentrations in serum from blood sampling collected at various times over 24 hours dosing interval on Day 7 and 21, before dosing on days 5,6, 12, 13, 14, 19 and 20.
Measured: 21 days
Safetey laboratory tests (chemistry, hematology, urinalysis) on Days -1 and 22
Measured: 21 days
Adverse event monitoring throughout duration of the study
Measured: 21 days
Secondary outcomes (1)
Urinary 6-β-hydroxycortisol:cortisol ratios (CMR) on Days 0 and 21.
Measured: 2 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Mar 2008 (estimated)
- Study startJun 2007
- Study completionOct 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ObesityStudies 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
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 28 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00645216
- Sponsor's protocol ID
- A5351047
- Status last verified
- Mar 2008
- First submitted
- 20 Mar 2008
- Last updated
- 10 Aug 2009
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 10 Aug 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 1, Open Label, Randomized, Fixed Sequence Study To Evaluate The Effect Of Multiple Dose Administration Of Grapefruit Juice On The Multiple Dose Pharmacokinetics Of CP-945,598 In Healthy Overweight And Obese Subjects
- ClinicalTrials.gov ID
- NCT00645216
- Acronym / sponsor ID
- A5351047
- Conditions
- Obesity
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 28 participants (estimated)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- Jun 2007
- Study completion
- Oct 2007 (actual)
- First posted
- 27 Mar 2008 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
CP-945,598 is eliminated primarily by enzyme CYP3A. Grapefruit juice may affect the activity of CYP3A and alter the amount of CP-945,598 in the blood. This study will therefore compare the time course of drug concentrations in the body, safety and tolerability of CP-945,598 given with or without grapefruit juice in healthy obese/overweight subjects.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| CP-945,598 with Grapefruit Juice | Experimental | Drug: CP-945,598CP-945,598 with Grapefruit Juice |
| CP-945,598 alone | Experimental | Drug: CP-945,598CP-945,598 alone |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Healthy male and female subjects between the ages of 18 and 55 years.
- Body Mass Index (BMI) of 27 to 40 kg/m2.
- Willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other trial procedures.
Key exclusion criteria (4 listed)
- Non-prescribed use of drugs of abuse/ recreational drugs;
- Recent treatment with experimental drugs or herbal experiments;
- EKG and blood pressure parameters falling outside of protocol-specified limits;
- History of regular alcohol or tobacco use exceeding protocol-specified limits; grapefruit juice intolerance.
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 |
|---|---|---|
| CP-945,598Subjects take CP-945,598 alone for 21 days | Drug | CP-945,598 alone |
| CP-945,598Subjects take CP-945,598 from Days 1 to 7, then take CP-945,598 and Grapefruit Juice from Days 8 to 21 | Drug | CP-945,598 with Grapefruit Juice |
Primary outcome
Measurement of durg and metabolite concentrations in serum from blood sampling collected at various times over 24 hours dosing interval on Day 7 and 21, before dosing on days 5,6, 12, 13, 14, 19 and 20.
Time frame: 21 days
Safetey laboratory tests (chemistry, hematology, urinalysis) on Days -1 and 22
Time frame: 21 days
Adverse event monitoring throughout duration of the study
Time frame: 21 days
1 secondary outcome
Urinary 6-β-hydroxycortisol:cortisol ratios (CMR) on Days 0 and 21.
Time frame: 2 days
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Aug 2009.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
Related trials for Obesity
RecruitingObservational study
Endoscopic Sleeve Gastroplasty (ESG) Prospective Trial for Obesity (EGO-Trial)
Obesity
Active, not recruitingPhase 4
Effects of Sequential Therapy With Mexidol® (Intravenous) and Mexidol® FORTE 250 (Oral) on Functional Brain Activity Assessed by Functional Magnetic Resonance Imaging and Biochemical Parameters in Patients With Chronic Cerebral Ischemia: A Comparison of Patients With and Without Metabolic Disorders
Metabolic Abnormalities, Obesity & Overweight
Recruiting
Exercise Training and Vitamin D Metabolism
Obesity & Overweight, Vitamin D
Recruiting
Metabolic Health, Bones and Nuts During Weight Loss in Adults
Weight Loss, Bone Density
Active, not recruiting
Effect of Probiotics on Insulin Sensitivity in Overweight and Obese Pregnancy
Obesity & Overweight, Gestational Diabetes Mellitus (GDM)
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
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing CP-945,598 in people with Obesity, run by Pfizer at 1 site 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 3 inclusion and 4 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 10 Aug 2009. 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 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?
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?
Measurement of durg and metabolite concentrations in serum from blood sampling collected at various times over 24 hours dosing interval on Day 7 and 21, before dosing on days 5,6, 12, 13, 14, 19 and 20. (time frame: 21 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 10 Aug 2009.