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An Exploratory Study to Assess the Effects of JNJ-39439335 on the Relief of Pain Using a Thermal-Grill Experimental Model

2014-08-27 03:18:15 | BioPortfolio

Summary

This exploratory study will use a thermal-grill experimental model to assess the effects of JNJ-39439335 (50 mg, single oral dose) on the relief of pain.

Description

This exploratory study will use a thermal-grill experimental model to assess the effects of JNJ-39439335 (50 mg, single oral dose) on the relief of pain. The study drug will be tested in healthy adult males to find out if a single 50 mg oral dose of JNJ-39439335 will be better than placebo (an inactive substance, like a sugar pill) in relieving pain. Study volunteers will experience the pain sensation (the illusion of pain) as a result of placing the palm of the hand on a small device that consists of harmless warm and cool flat metal bars known as a thermal grill. Volunteers will receive JNJ-39439335 or its matching placebo in the study unit on Day 1 of each of the 2 treatment periods. The treatment sequence for each volunteer will be assigned randomly (like flipping a coin). On the dosing day, the pain sensation will be induced and the following outcome measures will be assessed before dosing and at 4 hours after dosing: (1) volunteer's heat pain threshold [HPT] and cold pain threshold [CPT], i.e., the hot or the cold temperature at which it begins to elicit pain, (2) the intensity and the unpleasantness of the pain sensation resulting from simultaneous application of a warm temperature [4 C below HPT] and a cold temperature [4 C above CPT], (3) the intensity of non-painful warm and cold sensations following application of temperatures 4 C below HPT or 4 C above CPT, respectively, and (4) the intensity of pain following application of temperatures 2 C above HPT and 2 C below CPT. All of these assessments will be performed at a constant room temperature of approximately 21 C. During the trial volunteers will be closely monitored for safety, including the evaluation of adverse events, vital signs, 12-lead ECG, clinical laboratory testing (hematology and serum chemistry), and full neurological examination. Two blood samples for the measurement of JNJ-39439335 plasma concentrations will be collected immediately before and immediately after the thermal-grill assessments. At approximately 6 hours post-dose, volunteers will be discharged from the study unit. The study duration for each volunteer is approximately 9 weeks, including a screening phase that starts within 3 weeks before the first study drug administration, a washout of at least 3 weeks between the 2 treatment periods, and a final follow-up visit that will take place at approximately 3 weeks after the last study drug administration. Each volunteer will receive a single oral dose of JNJ-39439335 (50 mg) or placebo tablet on Day 1 of each of the 2 treatment periods. The study duration for each subject is ~9 weeks.

Study Design

Allocation: Randomized, Endpoint Classification: Pharmacodynamics Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Basic Science

Conditions

Pain

Intervention

JNJ-39439335, Placebo

Status

Completed

Source

Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:18:15-0400

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