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Study of Experimental Models of Pain and Inflammation.

This study has been completed.
Information provided by (Responsible Party):
Martin Angst, Stanford University Identifier:
First received: March 31, 2010
Last updated: June 18, 2013
Last verified: June 2013
The experimental pain model studied in this proposal show characteristics of an inflamed wound with a pro-inflammatory response. This study will help discover candidate genetic and/or proteomic pain biomarkers that could provide objective and mechanism based tests to diagnose, monitor or quantify pain. We also hope to determine the measurable effects of a known non-steroidal anti-inflammatory drug (NSAID) on biomarkers of pain and inflammation.

Condition Intervention Phase
Drug: Ibuprofen
Drug: Placebo tablet
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double Blind (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Basic Science
Official Title: Experimental Inflammatory and Micro-incisional Pain Model Analysis by Gene Expression and Interstitial Fluid Proteomics of Skin Tissue

Resource links provided by NLM:

Further study details as provided by Stanford University:

Primary Outcome Measures:
  • Mechanical and thermal pain measurements, inflammatory COX and Prostaglandin E2 (PGE2) gene expression. [ Time Frame: 48 hours ]

Secondary Outcome Measures:
  • Interleukin-1beta and Interleukin-8 regulation [ Time Frame: 48 hours ]

Enrollment: 15
Study Start Date: February 2010
Study Completion Date: September 2010
Primary Completion Date: September 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Ibuprophen 800 mg
Oral ibuprofen 800 mg, administered 24 hours after exposure to UV radiation for the creation of an inflamed lesion, and 2 hours prior to site evaluation.
Drug: Ibuprofen
800 mg oral one time only
Other Name: Ibuprofen, generic
Placebo Comparator: Placebo
Oral placebo administered 24 hours after exposure to UV radiation for the creation of an inflamed lesion, and 2 hours prior to site evaluation.
Drug: Placebo tablet
Placebo tablet oral one time only
Other Name: Placebo


Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:1) Age 18-60 2) Skin type II or III according to classification of Fitzpatrick 3) Negative pregnancy test (women of childbearing potential) 4) Willing and able to sign an informed consent form and Health Insurance Portability and Accountability Act (HIPAA) authorization and to comply with study procedures

Exclusion Criteria:1) History of acute or chronic illness that may hinder study procedures or confuse interpretation of the data (e.g. dermatological, neurological, psychiatric or addictive diseases) 2) Clinically significant cardiovascular, pulmonary, hepatic or renal diseases 3) Major bodily injury within 3 months of study participation 4) Surgery within 3 months of study participation 5) Pregnancy or breast-feeding 6) Intake of prescription drugs with anti/pro-inflammatory action 7) Intake of prescription drugs with anti/pro-analgesic action 8) Inability to abstain from any anti/pro inflammatory drugs during the 24-hour period preceding a study session 9) Inability to abstain from any anti/pro-analgesic drugs during the 24-hour period preceding a study session 10) Prior medical history that would contraindicate the use of NSAID, or previous negative reaction to NSAIDs or aspirin 11) Inability to obtain at least 6 hours of sleep during the night preceding a study session

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Please refer to this study by its identifier: NCT01097902

United States, California
Stanford University School of Medicine
Stanford, California, United States, 94305
Sponsors and Collaborators
Martin Angst
Principal Investigator: Martin S Angst Stanford University
  More Information

Responsible Party: Martin Angst, Professor of Anesthesia, Stanford University Identifier: NCT01097902     History of Changes
Other Study ID Numbers: SU-03012010-5102
Study First Received: March 31, 2010
Last Updated: June 18, 2013

Additional relevant MeSH terms:
Pathologic Processes
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Cyclooxygenase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on April 28, 2017