An efficacy study assessing analgesic effect of ibuprofen/caffeine in post-surgical dental pain.
The purpose of this study is to assess the analgesic efficacy of a fixed dose combination of ibuprofen/caffeine compared to ibuprofen alone and also to placebo.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
374
Jean Brown Research
Salt Lake City, Utah, United States
Time Weighted Sum of Pain Relief Rating (PRR) and Pain Intensity Difference (PID) Scores From 0 to 8 Hours Post-dose (SPRID 0-8): Ibuprofen + Caffeine Versus Ibuprofen
SPRID 0-8: time-weighted sum of PRID scores from 0 to 8 hours. PRID: sum of PID and PRR at each post-dose time point. PRR score: at each post-dose time point participants answered to question "How much relief do you have from your starting pain?" on a 5-point scale: 0= none, 1= a little, 2= some, 3= a lot, 4= complete; higher scores = more relief from pain. Numerical pain severity rating (NPSR) scale: at baseline and each post-dose time point participants answered to question "How much pain do you have at this time?" on an 11-point scale: range from 0= no pain to 10= worst possible pain; higher scores = worse pain. PID score: NPSR score at baseline (0 hour) minus NPSR score at each post-dose time point; overall possible PID score range at a post-dose time point: -10 to 10, higher positive value = greater improvement. Overall possible SPRID 0-8 score range: -80 to 112, higher scores = more improvement in pain.
Time frame: From 0 to 8 hours post-dose on Day 1
Time Weighted Sum of Pain Relief Rating and Pain Intensity Difference Scores From 0 to 2 (SPRID 0-2), 0 to 4 (SPRID 0-4), 0 to 6 (SPRID 0-6) and 0 to 8 Hours Post-dose (SPRID 0-8)
SPRID 0-2, SPRID 0-4, SPRID 0-6, SPRID 0-8: time-weighted sum of PRID scores from 0 to 2, 0 to 4, 0 to 6 and 0 to 8 hours respectively. PRID at each post-dose time point = PID + PRR. PRR score: at each post-dose time point participants answered to question "How much relief do you have from your starting pain?" on 5-point scale: 0=none, 1=a little, 2=some, 3=a lot, 4=complete; higher scores=more relief from pain. NPSR scale: at baseline and each post-dose time point participants answered to question "How much pain do you have at this time?" on 11-point scale: range from 0=no pain to 10=worst possible pain; higher scores=worse pain. PID score: NPSR score at baseline (0 hour) minus NPSR score at each post-dose time point; overall possible PID score range at a post-dose time point: -10 to 10, higher positive value=greater improvement. Score range for: SPRID 0-2= -20 to 28; SPRID 0-4= -40 to 56; SPRID 0-6= -60 to 84; SPRID 0-8= -80 to 112. Higher SPRID scores=more improvement in pain.
Time frame: From 0 to 2, 0 to 4, 0 to 6 and 0 to 8 hours post-dose on Day 1
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Time Weighted Sum of Pain Intensity Difference Scores From 0 to 2 Hours (SPID 0-2), 0 to 4 (SPID 0-4), 0 to 6 (SPID 0-6) and 0 to 8 Hours Post-dose (SPID 0-8)
SPID 0-2, SPID 0-4, SPID 0-6, SPID 0-8: time-weighted sum of PID scores from 0 to 2, 0 to 4, 0 to 6 and 0 to 8 hours post-dose respectively. NPSR scale: at baseline and each post-dose time point participants answered to question "How much pain do you have at this time?" on an 11-point scale: score range from 0 = no pain to 10 = worst possible pain; higher scores = worse pain. PID score: NPSR score at baseline (0 hour) minus NPSR score at each post-dose time point; overall possible PID score range at a post-dose time point: -10 to 10, higher positive value = greater improvement. Overall possible range: SPID 0-2 = -20 to 20; SPID 0-4 = -40 to 40; SPID 0-6 = -60 to 60; SPID 0-8 = -80 to 80. Higher SPID scores = more improvement in pain.
Time frame: From 0 to 2, 0 to 4, 0 to 6 and 0 to 8 hours post-dose on Day 1
Time Weighted Sum of Pain Relief Rating Scores From 0 to 2 (TOTPAR 0-2), 0 to 4 (TOTPAR 0-4), 0 to 6 (TOTPAR 0-6) and 0 to 8 Hours Post-dose (TOTPAR 0-8)
TOTPAR 0-2, TOTPAR 0-4, TOTPAR 0-6, TOTPAR 0-8: time-weighted sum of PRR scores from 0 to 2, 0 to 4, 0 to 6 and 0 to 8 hours post-dose respectively. PRR score: at each post-dose time point participants answered to the question "How much relief do you have from your starting pain?" on a 5-point scale: 0= none, 1= a little, 2= some, 3= a lot, 4= complete; higher scores = more relief from pain. Overall possible range: TOTPAR 0-2 = 0 to 8; TOTPAR 0-4 = 0 to 16; TOTPAR 0-6 = 0 to 24; TOTPAR 0-8 = 0 to 32. Higher TOTPAR scores = more improvement in pain.
Time frame: From 0 to 2, 0 to 4, 0 to 6 and 0 to 8 hours post-dose on Day 1
Sum of Pain Relief Rating and Pain Intensity Difference (PRID) Scores at 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, and 8 Hours Post-dose
PRID: sum of PID and PRR at each post-dose time point. PRR score: at each post-dose time point participants answered to a question "How much relief do you have from your starting pain?" on a 5-point scale: 0= none, 1= a little, 2= some, 3= a lot, 4= complete; higher scores = more relief from pain. NPSR scale: at baseline and each post-dose time point participants answered to a question "How much pain do you have at this time?" on an 11-point scale: range from 0= no pain to 10= worst possible pain; higher scores = worse pain. PID score: NPSR score at baseline (0 hour) minus NPSR score at each post-dose time point; overall possible PID score range at a post-dose time point: -10 to 10, higher positive value = greater improvement. At a single post-dose time point overall possible range for PRID score: -10 to 14, higher scores = more improvement in pain.
Time frame: 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, and 8 hours post-dose on Day 1
Pain Relief Rating Scores at 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, and 8 Hours Post-dose
PRR score: at each post-dose time point participants answered to a question "How much relief do you have from your starting pain?" on a 5-point scale: 0= none, 1= a little, 2= some, 3= a lot, 4= complete; higher scores = more relief from pain.
Time frame: 0.25, 0.5, 1, 1.5, 2, 3, 4 5, 6, 7, and 8 hours post-dose on Day 1
Pain Intensity Difference Scores at 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, and 8 Hours Post-dose
NPSR scale: at baseline and each post-dose time point participants answered to a question "How much pain do you have at this time?" on an 11-point scale: range from 0= no pain to 10= worst possible pain; higher scores = worse pain. PID score: NPSR score at baseline (0 hour) minus NPSR score at each post-dose time point; overall possible PID score range at a single post-dose time point: -10 to 10, higher positive value = greater improvement in pain.
Time frame: 0.25, 0.5, 1, 1.5, 2, 3, 4 5, 6, 7, and 8 hours post-dose on Day 1
Time to Onset of Achieving Meaningful Relief
When the participants were administered study medication at time 0 hours they were given the 2 stopwatches: 1 stopwatch was labelled as "first perceptible relief" and another as "meaningful relief." Participants were instructed to stop the stopwatch labelled as "meaningful relief" at the moment when they first experienced meaningful relief, that is, when the relief from the pain was meaningful to them. The stopwatch remained active for 8 hours (until stopped by the participants, or until rescue medication was administered).
Time frame: Up to 8 hours post-dose on Day 1
Time to Onset of First Perceptible Relief
When the participants were administered study medication at time 0 hours they were given the 2 stopwatches: 1 stopwatch was labelled as "first perceptible relief" and another as "meaningful relief." Participants were instructed to stop the stopwatch labelled as "first perceptible relief" at the moment when they first began to feel any pain relieving effect. It was when they first felt a little/noticeable pain relief. It did not mean that they felt completely better (though they might), but when they first felt any difference in pain that they had at present. The stopwatch remained active for 8 hours (until stopped by the participants, or until rescue medication was administered).
Time frame: Up to 8 hours post-dose on Day 1
Time to Treatment Failure
Treatment failure was defined as time to first dose of rescue medication or study discontinuation of the participants due to lack of efficacy.
Time frame: Up to 8 hours post dose on Day 1