Effect of Diltiazem Administration on CP-945,598 Pharmacokinetics

NCT00645463

Last updated date
Study Location
Pfizer Investigational Site
Ann Arbor, Michigan, 48105, United States
Contact
1-800-718-1021

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Eligibility Criteria
condition
The disease, disorder, syndrome, illness, or injury that is being studied.
Obesity
Sex
Females and Males
Age
Pediatric Trials: 0-17 Years
Adult Trials: 18+ Years
18-55 years
Inclusion Criteria
The factors, or reasons, that allow a person to participate in a clinical study.
Show details

- No clinically relevant abnormalities based upon medical history, physical exam, 12-lead ECG, and clinical lab tests

- Body Mass Index (BMI) ~ 27-40 kg/m2, inclusive

- Personally signed inform consent document

Exclusion Criteria
The factors, or reasons, that prevent a person from participating in a clinical study.
Show details


- Evidence or history of significant acute or chronic disease


- Pregnant or nursing females


- Screening PR interval > 220 msec


- Sitting blood pressure <= 90 mmHg systolic or <= 60 mmHg diastolic

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Advanced Information
Descriptive Information
Brief Title  ICMJE Effect of Diltiazem Administration on CP-945,598 Pharmacokinetics
Official Title  ICMJE A Phase 1, Randomized, Fixed Sequence Study To Evaluate The Effect Of Multiple Dose Administration Of Modified Release Diltiazem On The Multiple Dose Pharmacokinetics Of CP-945,598 In Healthy Overweight And Obese Subjects
Brief Summary

A recently completed clinical drug interaction study of CP-945,598 with ketoconazole, a potent CYP3A inhibitor, showed that coadministration of CP-945,598 with ketoconazole results in an approximately 5-fold increase in CP-945,598 total exposure (AUC) and 4-fold increase in Cmax. Therefore, the sensitivity of CP-945,598 pharmacokinetics (PK) to less potent CYP3A inhibitors needs to be characterized to support labeling and registration.

Diltiazem is a known substrate and moderate mechanism-based inhibitor of the CYP3A enzyme system and was chosen as the moderate CYP3A inhibitor for this study as it is a clinically relevant medication likely to be prescribed concomitantly with CP-945,598 given the increased risk of hypertension and cardiovascular disease in the obese patient population.

Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 1
Study Design  ICMJE Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Condition  ICMJE Obesity
Intervention  ICMJE
  • Drug: CP-945,598
    20 mg CP-945,598 + 240 mg MR Diltiazem
  • Drug: CP-945,598
    20 mg CP-945,598 alone
Study Arms  ICMJE
  • Experimental: Group A
    Intervention: Drug: CP-945,598
  • Experimental: Group B
    Intervention: Drug: CP-945,598
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: March 21, 2008)
28
Original Actual Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE June 2007
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • No clinically relevant abnormalities based upon medical history, physical exam, 12-lead ECG, and clinical lab tests
  • Body Mass Index (BMI) ~ 27-40 kg/m2, inclusive
  • Personally signed inform consent document

Exclusion Criteria:

  • Evidence or history of significant acute or chronic disease
  • Pregnant or nursing females
  • Screening PR interval > 220 msec
  • Sitting blood pressure <= 90 mmHg systolic or <= 60 mmHg diastolic
Sex/Gender  ICMJE
Sexes Eligible for Study:All
Ages  ICMJE 18 Years to 55 Years   (Adult)
Accepts Healthy Volunteers  ICMJE Yes
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00645463
Other Study ID Numbers  ICMJE A5351043
Has Data Monitoring Committee No
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Director, Clinical Trial Disclosure Group, Pfizer, Inc.
Study Sponsor  ICMJE Pfizer
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director:Pfizer CT.gov Call CenterPfizer
PRS Account Pfizer
Verification Date March 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP