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Measuring Placebo Effect by Elimination and Investigating Mechanism of Action

NCT00426010 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 180

Last updated 2011-12-13

No results posted yet for this study

Summary

We propose to measure the effect of placebo by elimination as well as by a "balanced placebo" design, determine its interaction with active drug, and explore whether placebo exerts part of its effect at the pharmacokinetics level.

Conditions

  • Placebo Effect
  • Placebo Mechanisms of Action

Interventions

DRUG

caffeine/placebo

caffeine or placebo, either overt or covert

Sponsors & Collaborators

  • King AbdulAziz City for Science and Technology

    collaborator OTHER

  • King Faisal Specialist Hospital & Research Center

    lead OTHER

Principal Investigators

  • Muhammad M Hammami, MD, PhD · KFSH & RC, Riyadh

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2007-01-31
Primary Completion
2009-02-28
Completion
2009-02-28

Countries

  • Saudi Arabia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00426010 on ClinicalTrials.gov