The objective of this study is to evaluate the safety and efficacy of acetaminophen 650 mg and acetaminophen 1000 mg in dental surgery.
This trial is to assess the relative efficacy of acetaminophen 1000 mg versus acetaminophen 650 mg over a six-hour period, in subjects experiencing at least moderate post-operative dental pain.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
540
Acetaminophen Caplet - single dose
0 mg Caplet - single dose
Jean Brown Research
Salt Lake City, Utah, United States
Overall Analgesic Efficacy - Sum of Pain Intensity Difference and Pain Relief Scores Over Six Hours (SPRID6)
Weighted Sum of Pain Intensity Difference and Pain Relief Scores Over Six Hours (SPRID6) - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief. For SPRID6, the total possible minimum value is -300 (worst) and the total possible maximum value is 1200 (best). The weights used in the calculation of weighted sums were equal to the elapsed time (hour) between the time point of interest and the preceding time point.
Time frame: 6 Hours
Sum of Pain Intensity Difference Over Six Hours (SPID6)
Weighted Sum of the Pain Intensity Difference from Baseline Over Six Hours (SPID6) - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain. The total possible minimum value is -300 (worst) and the total possible maximum value is 600 (best). The weights used in the calculation of weighted sums were equal to the elapsed time (hour) between the time point of interest and the preceding time point.
Time frame: 6 Hours
Sum of Pain Relief Scores Over Six Hours (TOTPAR6)
Weighted Sum of the Pain Relief Scores Over Six Hours (TOTPAR6) - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief. The total possible minimum value is 0 (worst) and the total possible maximum value is 600 (best). The weights used in the calculation of weighted sums were equal to the elapsed time (hour) between the time point of interest and the preceding time point.
Time frame: 6 Hours
Pain Intensity Difference (PID) at 15 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
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Time frame: 15 Minutes
Pain Intensity Difference (PID) at 30 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 30 Minutes
Pain Intensity Difference (PID) at 45 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 45 Minutes
Pain Intensity Difference (PID) at 60 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 60 Minutes
Pain Intensity Difference (PID) at 75 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time Point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 75 Minutes
Pain Intensity Difference (PID) at 90 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 90 Minutes
Pain Intensity Difference (PID) at 120 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 120 Minutes
Pain Intensity Difference (PID) at 180 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 180 Minutes
Pain Intensity Difference (PID) at 240 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 240 Minutes
Pain Intensity Difference (PID) at 300 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 300 Minutes
Pain Intensity Difference (PID) at 360 Minutes
Pain Intensity Difference (PID) from Baseline at Each Assessment Time point - pain intensity was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain with a highest possible score of 100. The pain intensity difference was calculated at each time point as the pain intensity score at baseline minus the pain intensity score at the stated time point.
Time frame: 360 Minutes
Pain Relief (PAR) Scores at 15 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 15 Minutes
Pain Relief (PAR) Scores at 30 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 30 Minutes
Pain Relief (PAR) Scores at 45 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 45 Minutes
Pain Relief (PAR) Scores at 60 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 60 Minutes
Pain Relief (PAR) Scores at 75 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 75 Minutes
Pain Relief (PAR) Scores at 90 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 90 Minutes
Pain Relief (PAR) Scores at 120 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 120 Minutes
Pain Relief (PAR) Scores at 180 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 180 Minutes
Pain Relief (PAR) Scores at 240 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 240 Minutes
Pain Relief (PAR) Scores at 300 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 300 Minutes
Pain Relief (PAR) Scores at 360 Minutes
Pain Relief Scores at each Assessment Timepoint - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 100
Time frame: 360 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 15 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 15 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 30 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 30 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 45 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 45 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 60 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 60 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 75 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 75 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 90 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 90 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 120 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 120 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 180 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 180 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 240 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 240 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 300 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 300 Minutes
Sum of Pain Intensity Difference and Pain Relief Scores (PRID) at 360 Minutes
Sum of PID and PAR Scores (PRID) at each Assessment Time point - pain intensity and pain relief were evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no pain and 100 = very severe pain for pain intensity and 0 = no relief and 100 = complete relief for pain relief
Time frame: 360 Minutes
Time to Meaningful Pain Relief
Minutes until meaningful pain relief was achieved. A stopwatch was provided to the subject after ingestion of the study medication. The subject was instructed to stop the stopwatch when the relief from the starting pain was meaningful to them.
Time frame: within 6 Hours
Time to Confirmed Perceptible Pain Relief
Minutes until confirmed perceptible pain relief was achieved. A stopwatch was provided to the subject after ingestion of the study medication. The subject was instructed to stop the stopwatch when they first began to feel any pain relieving effect whatsoever of the drug, that was when they first felt any pain relief. It did not necessarily mean they felt completely better, although they might have, but when they first felt any difference in the pain.
Time frame: within 6 Hours
Duration of Analgesia - Time to Rescue
Minutes until rescue medication was given.
Time frame: within 6 Hours
Rescue Rates Through Four Hours
Percentage of subjects using rescue medication.
Time frame: through 4 Hours
Rescue Rates Through Six Hours
Percentage of subjects using rescue medication.
Time frame: through 6 Hours
Percentage of Subjects With >50% of the Maximum Possible TOTPAR6 Score
Percentage of Subjects with \>50% of the Maximum Possible TOTPAR6 Score - pain relief was evaluated using a 0-100 mm visual analog scale (VAS) where 0 = no relief and 100 = complete relief with a highest possible score of 600 so \>50% is \>300 out of 600
Time frame: 6 Hours
Patient Global Evaluation
Patient Assessment of the Pain Medication - Number of Subjects rating the medication they received as a pain reliever on a score of 0-4, where 0=poor, 1=fair, 2=good, 3=very good, 4=excellent
Time frame: 6 Hours