Multiple Dose Dental Pain Study Of Ibuprofen Extended Release

SPRID is time-weighted sum of pain relief (PR) plus pain intensity (PI) difference (PID) (PRID) scores. 5-point categorical scale for PR: "How much relief do you have from your starting pain?" (0 equals [=] none, 1=a little, 2=some, 3=a lot, 4=complete). 4-point categorical scale for PI: "How much pain do you have at this time?" (0=none, 1=mild, 2=moderate, 3=severe). PID score=baseline pain intensity score minus pain intensity at each time point; score ranged from -1 to 3; higher positive PID value indicated improvement in pain intensity. SPRID 0-12 score ranged from -12 to 84; higher score indicated better efficacy.

SPRID is time-weighted sum of PR plus PID (PRID) scores. 5-point categorical scale for PR: "How much relief do you have from your starting pain?" (0=none, 1=a little, 2=some, 3=a lot, 4=complete). 4-point categorical scale for pain intensity: "How much pain do you have at this time?" (0=none, 1=mild, 2=moderate, 3=severe). PID score=baseline pain intensity score minus pain intensity at each time point; score ranged from -1 to 3; higher positive PID value indicated improvement (decrease) in pain intensity. SPRID 8-12 score ranged from -4 to 28; higher score indicated better efficacy.

SPID is a derived endpoint from PID scores. For pain intensity, "How much pain do you have at this time?" answered on a 4-point categorical scale (0=none, 1=mild, 2=moderate, 3=severe). PID score=baseline pain intensity score minus pain intensity at each time point; score ranged from -1 to 3; higher positive PID value indicated improvement (decrease) in pain intensity. SPID scores ranged as follows: 0 to 12 hour (-11.5 to 35.5), 8 to 12 hour (-6.0 to 18.0), 12 to 24 hour (-14.0 to 42.0), 20 to 24 hour (-8.0 to 24.0), 0 to 24 hour (-23.5 to 71.5), 24 to 36 hour (-16.0 to 48.0), 32 to 36 hour (-8.0 to 24.0), 36 to 48 hour (-16.0 to 48.0), 44 to 48 hour (-8.0 to 24.0), 24 to 48 hour (-28.0 to 84.0); higher positive values indicated improvement (decrease) in pain intensity.

During the first 12 hours of the study, participants not experiencing adequate relief after the 1-hour time point were allowed to take a single tablet (dose) of acetaminophen/hydrocodone hydrochloride (HCl) 500 mg/5 mg as a rescue medication (the only rescue medication allowed). The time at which rescue medication was taken was recorded.

Participants not experiencing adequate relief after the 1-hour time point during each dosing interval were allowed to take a single tablet (dose) of acetaminophen/hydrocodone HCl 500 mg/5 mg as a rescue medication (the only rescue medication allowed) during each interval.

A 5-point categorical pain relief rating scale was used to rate pain relief in response to the question: "How much relief do you have from your starting pain?" Responses were scored as follows: 0=none, 1=a little, 2=some, 3=a lot, 4=complete. Higher score indicated more pain relief.

For pain intensity, "How much pain do you have at this time?" answered on a 4-point categorical scale. Responses were scored as follows: 0=none, 1=mild, 2=moderate, 3=severe. PID score=baseline pain intensity score minus score at each time point. PID scores ranged from -1 to 3. Higher positive PID scores indicated greater improvement (decrease in pain intensity).

PRID score=PR plus PID. 5-point categorical scale for PR: "How much relief do you have from your starting pain?" (0=none, 1=a little, 2=some, 3=a lot, 4=complete). 4-point categorical scale for pain intensity: "How much pain do you have at this time?" (0=none, 1=mild, 2=moderate, 3=severe). PID score=baseline pain intensity score minus pain intensity at each time point; PID score ranged from -1 to 3; higher positive PID value=improvement. PRID scores ranged from -1 to 7. Higher PRID scores indicated better pain relief and decrease in pain intensity.

TOTPAR is a derived endpoint from PR scores. 5-point categorical scale for PR: "How much relief do you have from your starting pain?" (0=none, 1=a little, 2=some, 3=a lot, 4=complete). TOTPAR 0-12 scores ranged from 0 (worst) to 48 (best). TOTPAR 8-12 scores ranged from 0 (worst) to 16 (best).

The elapsed time from dosing until the participant indicated first perceptible pain relief by pressing the first stopwatch, provided the participant also indicated achieving meaningful relief by pressing the second stopwatch. Perceptible relief defined as when participant first began to feel any pain-relieving effect whatsoever of the drug. Did not necessarily mean the participant felt completely better, but when the participant first felt any difference in the pain he/she is currently feeling.

Participants evaluated the time to meaningful relief by depressing a second stopwatch at the moment they first began to experience meaningful relief, defined as relief from the pain that was considered meaningful to the participant.

Participants responded, on a 6-point categorical scale, to the following question: "How would you rate this medication as a pain-reliever?" Responses on this categorical scale ranged as follows: 0=very poor, 1=poor, 2=fair, 3=good, 4=very good, 5=excellent.