A Dental Pain Study to Test the Effectiveness of a New Pain Reliever Medicine

Study Overview
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Brief Summary
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To assess the safety and effectiveness one dose of a new pain reliever medicine (JNJ-10450232 at either the 250 or 1000 mg strength) compared with placebo (sugar pill) or acetaminophen 1000 mg after surgical removal of third molars. The primary endpoint will evaluate pain relief effectiveness up to 6 hours after administration of the study drug.

Detailed Description
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This is a single-center, randomized, double-blind, placebo- and active-controlled, parallel group study to evaluate the efficacy, safety and pharmacokinetic profile of JNJ-10450232, administered as a single dose in capsules (250 or 1000 mg), over a 24 hour period after molar extractions. Subjects will stay at the research center for  24 hours after administration of study drug. Healthy male subjects, ages 18 to 45 years inclusive, will be screened by medical history, vital signs, an electrocardiogram (ECG), and clinical laboratory tests. Eligible subjects will return to the clinic on the day of surgery and complete baseline vital signs and clinical laboratory tests. They will undergo dental extraction of a minimum of three third-molars and, if qualified, will be randomly assigned to one of four study treatments for pain.

Official Title
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A Randomized, Double-blind, Placebo- and Active-controlled Trial to Investigate the Single-dose Efficacy, Safety, and Pharmacokinetics of 250 and 1000 mg JNJ-10450232 in Postoperative Dental Pain

Conditions
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Pain

Intervention / Treatment
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* Drug: JNJ-10450232 / Not yet marketed
* Drug: JNJ-10450232 / Not yet marketed
* Drug: JNJ-10450232 / Not yet marketed
* Drug: acetaminophen / Tylenol


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subjects aged 18-45 years At least moderate dental pain assessed by a categorical scale pain intensity scale and a score of at least 5 on the 11-point (0-10) pain intensity numerical rating scale (PI-NRS) following surgical removal of three third-molars Exclusion Criteria: Subjects who are not otherwise healthy Test positive for the urine drug screen Taking prohibited medications will not be allowed to participate in this study

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: JNJ-10450232 250 mg<br> | Drug: JNJ-10450232 / Not yet marketed<br>* Subjects who meet the randomization criteria at baseline within 4.5 hours after dental surgery will be assigned to one of four treatment groups stratified by pharmacokinetic blood sampling schedule and by baseline pain intensity level.<br>|
| Experimental: JNJ-10450232 1000 mg<br> | Drug: JNJ-10450232 / Not yet marketed<br>* Subjects who meet the randomization criteria at baseline within 4.5 hours after dental surgery will be assigned to one of four treatment groups stratified by pharmacokinetic blood sampling schedule and by baseline pain intensity level.<br>|
| Placebo Comparator: Placebo<br> | Drug: JNJ-10450232 / Not yet marketed<br>* Subjects who meet the randomization criteria at baseline within 4.5 hours after dental surgery will be assigned to one of four treatment groups stratified by pharmacokinetic blood sampling schedule and by baseline pain intensity level.<br>|
| Active Comparator: Acetaminophen 1000 mg<br> | Drug: acetaminophen / Tylenol<br>* Subjects who meet the randomization criteria at baseline within 4.5 hours after dental surgery will be assigned to one of four treatment groups stratified by pharmacokinetic blood sampling schedule and by baseline pain intensity level.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Analgesic Efficacy From 0 to 6 Hours After the Dose Using the Time-weighted Sum of Pain Intensity Difference (SPID 0-6) | Time-weighted sum of pain intensity difference by first multiplying each pain intensity difference (PID) score by the time from the previous time point, and adding them together for each scheduled time point within 0-6 hours. Time points included 15 minutes, 30 minutes, 45 minutes, 1 hour, 1.5 hours, 2 hours, 3 hours, 4 hours, 5 hours, and 6 hours. The minimum SPID 0-6 was -30 and the maximum SPID 0-6 was 60, where higher is better. Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). | 6 Hours | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain Intensity Difference From Baseline (PID) Scores at 15 Minutes Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 15 minutes post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 30 Minutes Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 30 minutes post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 45 Minutes Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 45 minutes post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 1 Hour Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 1 hour post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 1.5 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 1.5 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 2 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 2 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 3 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 3 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 4 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 4 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 5 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 5 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 6 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 6 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 7 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 7 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 8 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 8 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 9 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 9 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 10 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 10 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 11 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 11 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 12 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 12 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 16 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 16 hours post dose | 
| Pain Intensity Difference From Baseline (PID) Scores at 24 Hours Post Dose | Pain intensity is the amount of pain experienced on a scale of 1-10 (where 1=no pain and 10=very severe pain). The PID will be derived by subtracting the pain intensity from the baseline pain intensity. | Baseline to 24 hours post dose | 
| Pain Relief (PAR) Scores at 15 Minutes Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 15 minutes post dose | 
| Pain Relief (PAR) Scores at 30 Minutes Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 30 minutes post dose | 
| Pain Relief (PAR) Scores at 45 Minutes Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 45 minutes post dose | 
| Pain Relief (PAR) Scores at 1 Hour Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 1 hour post dose | 
| Pain Relief (PAR) Scores at 1.5 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 1.5 hours post dose | 
| Pain Relief (PAR) Scores at 2 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 2 hours post dose | 
| Pain Relief (PAR) Scores at 3 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 3 hours post dose | 
| Pain Relief (PAR) Scores at 4 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 4 hours post dose | 
| Pain Relief (PAR) Scores at 5 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 5 hours post dose | 
| Pain Relief (PAR) Scores at 6 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 6 hours post dose | 
| Pain Relief (PAR) Scores at 7 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 7 hours post dose | 
| Pain Relief (PAR) Scores at 8 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 8 hours post dose | 
| Pain Relief (PAR) Scores at 9 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 9 hours post dose | 
| Pain Relief (PAR) Scores at 10 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 10 hours post dose | 
| Pain Relief (PAR) Scores at 11 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 11 hours post dose | 
| Pain Relief (PAR) Scores at 12 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 12 hours post dose | 
| Pain Relief (PAR) Scores at 16 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 16 hours post dose | 
| Pain Relief (PAR) Scores at 24 Hours Post Dose | Pain relief is the amount of pain relief on a scale of 1-10 (where 1=no relief and 10=complete relief). | 24 hours post dose | 
| Duration of Pain Relief After Dosing (Time to Rescue Medication) | Time (minutes) to rescue medication was measured as the elapsed time from when the investigational product was given until the time rescue medication was given. | Completed at time of the first rescue medication (hours post dose), estimated up through Day 2 | 
| Subject Global Evaluation | How the subject would rate the study medication as a pain-reliever on a scale of 0-4 (where 0=poor and 4=excellent). | Completed at hour 12 or at time of the first rescue medication (hours post dose). | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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dental pain, post-surgical dental pain