Back to resultsPost-operative Dental Pain Study Comparing Two Different Dosage of Analgesic Efficacy
Primary Purpose
Post-surgical Dental Pain
Status
Completed
Phase
Phase 4
Locations
United States
Study Type
Interventional
Intervention
Paracetamol 1000 mg
Paracetamol 650 mg
Placebo
Sponsored by
About this trial
This is an interventional treatment trial for Post-surgical Dental Pain focused on measuring dental pain, paracetamol, Post-surgical dental pain
Eligibility Criteria
Inclusion Criteria:
- Subjects aged 18 to 45 years with moderate-to-severe dental pain as assessed by verbal rating scale (VRS) and confirmed by a score of at least 50 mm out of 100 mm using a visual analogue (VAS) following the surgical removal of up to two mandibular third molars. If only one mandibular third molar is removed, it must be a full bony impaction. If two mandibular third molars are removed, both may be partial bony impactions OR there may be a combination of one full bony impaction with the second tooth being erupted, soft tissue impaction, or partial bony impaction. Ipsilateral maxillary third molars may be removed at the surgeon's discretion, regardless of impaction level.
Exclusion Criteria:
- Pregnant and lactating females
- Allergy/intolerance to study materials or nitrous oxide or local anaesthetic used during surgery
- Current or recurrent liver, kidney or cardiac disease, stomach ulcers, gastrointestinal bleeding, gastroesophageal reflux disease, bronchospasm, rhinitis, urticaria or asthma
Sites / Locations
- Jean Brown Research
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm Type
Experimental
Experimental
Placebo Comparator
Arm Label
Paracetamol 1000mg
Paracetamol 650 mg
Placebo
Arm Description
Paracetamol 1000mg
Paracetamol 650 mg
Placebo
Outcomes
Primary Outcome Measures
Sum of Pain Relief and Pain Intensity Differences From 0 to 6 Hours (SPRID 6 Hours)
SPRID:Sum of Pain Intensity Difference (SPID) and Total Pain Relief (TOTPAR) at each post-dosing time-point. SPRID score ranged from -5.8 (least pain relief) to 40.3 (highest pain relief). SPID and TOTPAR were calculated as weighted sums of Pain Intensity Differences (PID) and Pain Relief Scores (PRS) at each measurement time, respectively. PID was derived by subtracting the pain severity score at a given post-dosing time-point from the baseline [pain severity score range:0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain using a 4-point categorical Verbal Rating Scale (VRS)]. If the subject rated pain intensity as 2 or 3, pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from baseline pain scores. PRS was assessed on 5-point categorical pain relief rating scale [0-no relief, 1-little relief, 2-some relief, 3-a lot of relief, 4-complete relief]
Secondary Outcome Measures
Time to Confirmed First Perceptible Relief
Participants recorded the time to first perceptible relief by starting the first stopwatch at the time of dosing and stopping it when he/she experienced the first perceptible pain relief. The first perceptible pain relief was confirmed if the participant also stopped the second stopwatch indicating meaningful relief.
Time to Onset of Meaningful Pain Relief
Participants recorded the time to meaningful relief by stopping a second stopwatch when they first began to experience meaningful relief.
Time to Start Using Rescue Medication
Median time of use of rescue medication by participants.
Percentage of Participants Who Took Rescue Medication at 2 Hours
Percentage of participants who received rescue medication at different time points post dose.
Percentage of Participants Who Took Rescue Medication at 6 Hours
Percentage of participants who received rescue medication at different time points post dose.
SPRID at 2 Hours
SPRID:Sum of Pain Intensity Difference (SPID) and Total Pain Relief (TOTPAR) at each post-dosing time-point. SPRID score ranged from -1.8 (least pain relief) to 12.3 (highest pain relief). SPID and TOTPAR were calculated as weighted sums of Pain Intensity Differences (PID) and Pain Relief Scores (PRS) at each measurement time, respectively. PID was derived by subtracting the pain severity score at a given post-dosing time-point from the baseline [pain severity score range:0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain using a 4-point categorical Verbal Rating Scale (VRS)]. If the subject rated pain intensity as 2 or 3, pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from baseline pain scores. PRS was assessed on 5-point categorical pain relief rating scale [0-no relief, 1-little relief, 2-some relief, 3-a lot of relief, 4-complete relief
SPRID at 4 Hours
SPRID:Sum of Pain Intensity Difference (SPID) and Total Pain Relief (TOTPAR) at each post-dosing time-point. SPRID score ranged from -3.8 (least pain relief) to 26.3 (highest pain relief). SPID and TOTPAR were calculated as weighted sums of Pain Intensity Differences (PID) and Pain Relief Scores (PRS) at each measurement time, respectively. PID was derived by subtracting the pain severity score at a given post-dosing time-point from the baseline [pain severity score range:0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain using a 4-point categorical Verbal Rating Scale (VRS)]. If the subject rated pain intensity as 2 or 3, pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from baseline pain scores. PRS was assessed on 5-point categorical pain relief rating scale [0-no relief, 1-little relief, 2-some relief, 3-a lot of relief, 4-complete relief
Total Pain Relief Score (TOTPAR) at 2 Hours
TOTPAR was calculated as sum of products of pain relief (PR) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120. Higher score indicated greater pain relief.
TOTPARt = ∑PR x (timet - timet-1).
PR score was assessed at each of the above time-points based on a 5-point categorical scale [0-no relief, 1-little relief, 2-meaningful relief, 3-a lot of relief, 4-complete relief].
TOTPAR at 4 Hours
TOTPAR was calculated as sum of products of pain relief (PR) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240. Higher score indicated greater pain relief.
TOTPARt = ∑PR x (timet - timet-1).
PR score was assessed at each of the above time-points based on a 5-point categorical scale [0-no relief, 1-little relief, 2-meaningful relief, 3-a lot of relief, 4-complete relief].
TOTPAR at 6 Hours
TOTPAR was calculated as sum of products of pain relief (PR) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240, 240-300 and 300-360. Higher score indicated greater pain relief.
TOTPARt = ∑PR x (timet - timet-1).
PR score was assessed at each of the above time-points based on a 5-point categorical scale [0-no relief, 1-little relief, 2-meaningful relief, 3-a lot of relief, 4-complete relief].
Sum of Pain Intensity Difference (SPID) Scores at 2 Hours
SPID was calculated as sum of products of Pain Intensity Differences (PID) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120. Positive and higher scores indicate greater reduction in pain.
SPIDt = ∑PID x (timet - timet-1)
Pain Intensity was assessed at baseline and at each time-point based on a 4-point categorical Verbal Rating Scale (VRS) scale: 0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain.
If the subject rated pain intensity as "2" or "3", pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from pain scores taken at baseline.
SPID Scores at 4 Hours
SPID was calculated as sum of products of Pain Intensity Differences (PID) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240. Positive and higher scores indicate greater reduction in pain.
SPIDt = ∑PID x (timet - timet-1)
Pain Intensity was assessed at baseline and at each time-point based on a 4-point categorical Verbal Rating Scale (VRS) scale: 0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain.
If the subject rated pain intensity as "2" or "3", pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from pain scores taken at baseline.
SPID Scores at 6 Hours
SPID was calculated as sum of products of Pain Intensity Differences (PID) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240, 240-300 and 300-360. Positive and higher scores indicate greater reduction in pain.
SPIDt = ∑PID x (timet - timet-1)
Pain Intensity was assessed at baseline and at each time-point based on a 4-point categorical Verbal Rating Scale (VRS) scale: 0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain.
If the subject rated pain intensity as "2" or "3", pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from pain scores taken at baseline.
Participants Global Assessment to Response to Treatment (PGART)
PGART was measured by a score in a scale from 0-4: 0- Poor; 1- Fair 2- Good; 3- Very Good; 4- Excellent.
Full Information
1. Study Identification
Unique Protocol Identification Number
NCT01075243
Brief Title
Post-operative Dental Pain Study Comparing Two Different Dosage of Analgesic Efficacy
Official Title
A Study to Compare the Analgesic Efficacy of Two Different Paracetamol Doses as Measured by Post-operative Pain Relief
Study Type
Interventional
2. Study Status
Record Verification Date
April 2015
Overall Recruitment Status
Completed
Study Start Date
November 2009 (undefined)
Primary Completion Date
March 2010 (Actual)
Study Completion Date
March 2010 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
GlaxoSmithKline
4. Oversight
Data Monitoring Committee
No
5. Study Description
Brief Summary
GlaxoSmithKline will be conducting this trial to compare analgesic efficacy of paracetamol 1000 mg vs 650 mg. The post-surgical dental pain model will be used to evaluate the analgesic efficacy of paracetamol. Each subject will be enrolled in the study for up to six weeks. The duration of the entire study will be approximately 18 weeks. Each subject will have to come to the clinic for three visits (Screening, Treatment and Follow up visits).
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Post-surgical Dental Pain
Keywords
dental pain, paracetamol, Post-surgical dental pain
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
401 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Paracetamol 1000mg
Arm Type
Experimental
Arm Description
Paracetamol 1000mg
Arm Title
Paracetamol 650 mg
Arm Type
Experimental
Arm Description
Paracetamol 650 mg
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Placebo
Intervention Type
Drug
Intervention Name(s)
Paracetamol 1000 mg
Intervention Description
Paracetamol 1000mg
Intervention Type
Drug
Intervention Name(s)
Paracetamol 650 mg
Intervention Description
Paracetamol 650 mg
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
Placebo
Primary Outcome Measure Information:
Title
Sum of Pain Relief and Pain Intensity Differences From 0 to 6 Hours (SPRID 6 Hours)
Description
SPRID:Sum of Pain Intensity Difference (SPID) and Total Pain Relief (TOTPAR) at each post-dosing time-point. SPRID score ranged from -5.8 (least pain relief) to 40.3 (highest pain relief). SPID and TOTPAR were calculated as weighted sums of Pain Intensity Differences (PID) and Pain Relief Scores (PRS) at each measurement time, respectively. PID was derived by subtracting the pain severity score at a given post-dosing time-point from the baseline [pain severity score range:0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain using a 4-point categorical Verbal Rating Scale (VRS)]. If the subject rated pain intensity as 2 or 3, pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from baseline pain scores. PRS was assessed on 5-point categorical pain relief rating scale [0-no relief, 1-little relief, 2-some relief, 3-a lot of relief, 4-complete relief]
Time Frame
Every two hours from Baseline to 6 hours post dose
Secondary Outcome Measure Information:
Title
Time to Confirmed First Perceptible Relief
Description
Participants recorded the time to first perceptible relief by starting the first stopwatch at the time of dosing and stopping it when he/she experienced the first perceptible pain relief. The first perceptible pain relief was confirmed if the participant also stopped the second stopwatch indicating meaningful relief.
Time Frame
Baseline to 6 hours post dose
Title
Time to Onset of Meaningful Pain Relief
Description
Participants recorded the time to meaningful relief by stopping a second stopwatch when they first began to experience meaningful relief.
Time Frame
Baseline to 6 hours post dose
Title
Time to Start Using Rescue Medication
Description
Median time of use of rescue medication by participants.
Time Frame
Baseline to 6 hours post dose
Title
Percentage of Participants Who Took Rescue Medication at 2 Hours
Description
Percentage of participants who received rescue medication at different time points post dose.
Time Frame
Baseline to 2 hours post dose
Title
Percentage of Participants Who Took Rescue Medication at 6 Hours
Description
Percentage of participants who received rescue medication at different time points post dose.
Time Frame
Baseline to 6 hours post dose
Title
SPRID at 2 Hours
Description
SPRID:Sum of Pain Intensity Difference (SPID) and Total Pain Relief (TOTPAR) at each post-dosing time-point. SPRID score ranged from -1.8 (least pain relief) to 12.3 (highest pain relief). SPID and TOTPAR were calculated as weighted sums of Pain Intensity Differences (PID) and Pain Relief Scores (PRS) at each measurement time, respectively. PID was derived by subtracting the pain severity score at a given post-dosing time-point from the baseline [pain severity score range:0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain using a 4-point categorical Verbal Rating Scale (VRS)]. If the subject rated pain intensity as 2 or 3, pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from baseline pain scores. PRS was assessed on 5-point categorical pain relief rating scale [0-no relief, 1-little relief, 2-some relief, 3-a lot of relief, 4-complete relief
Time Frame
Every two hours from baseline to 2 hours post dose
Title
SPRID at 4 Hours
Description
SPRID:Sum of Pain Intensity Difference (SPID) and Total Pain Relief (TOTPAR) at each post-dosing time-point. SPRID score ranged from -3.8 (least pain relief) to 26.3 (highest pain relief). SPID and TOTPAR were calculated as weighted sums of Pain Intensity Differences (PID) and Pain Relief Scores (PRS) at each measurement time, respectively. PID was derived by subtracting the pain severity score at a given post-dosing time-point from the baseline [pain severity score range:0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain using a 4-point categorical Verbal Rating Scale (VRS)]. If the subject rated pain intensity as 2 or 3, pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from baseline pain scores. PRS was assessed on 5-point categorical pain relief rating scale [0-no relief, 1-little relief, 2-some relief, 3-a lot of relief, 4-complete relief
Time Frame
Every two hours from baseline to 4 hours post dose
Title
Total Pain Relief Score (TOTPAR) at 2 Hours
Description
TOTPAR was calculated as sum of products of pain relief (PR) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120. Higher score indicated greater pain relief.
TOTPARt = ∑PR x (timet - timet-1).
PR score was assessed at each of the above time-points based on a 5-point categorical scale [0-no relief, 1-little relief, 2-meaningful relief, 3-a lot of relief, 4-complete relief].
Time Frame
Every two hours from baseline to 2 hours post dose
Title
TOTPAR at 4 Hours
Description
TOTPAR was calculated as sum of products of pain relief (PR) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240. Higher score indicated greater pain relief.
TOTPARt = ∑PR x (timet - timet-1).
PR score was assessed at each of the above time-points based on a 5-point categorical scale [0-no relief, 1-little relief, 2-meaningful relief, 3-a lot of relief, 4-complete relief].
Time Frame
Every two hours from baseline to 4 hours post dose
Title
TOTPAR at 6 Hours
Description
TOTPAR was calculated as sum of products of pain relief (PR) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240, 240-300 and 300-360. Higher score indicated greater pain relief.
TOTPARt = ∑PR x (timet - timet-1).
PR score was assessed at each of the above time-points based on a 5-point categorical scale [0-no relief, 1-little relief, 2-meaningful relief, 3-a lot of relief, 4-complete relief].
Time Frame
Every two hours from baseline to 6 hours post dose
Title
Sum of Pain Intensity Difference (SPID) Scores at 2 Hours
Description
SPID was calculated as sum of products of Pain Intensity Differences (PID) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120. Positive and higher scores indicate greater reduction in pain.
SPIDt = ∑PID x (timet - timet-1)
Pain Intensity was assessed at baseline and at each time-point based on a 4-point categorical Verbal Rating Scale (VRS) scale: 0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain.
If the subject rated pain intensity as "2" or "3", pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from pain scores taken at baseline.
Time Frame
Every two hours from baseline to 2 hours post dose
Title
SPID Scores at 4 Hours
Description
SPID was calculated as sum of products of Pain Intensity Differences (PID) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240. Positive and higher scores indicate greater reduction in pain.
SPIDt = ∑PID x (timet - timet-1)
Pain Intensity was assessed at baseline and at each time-point based on a 4-point categorical Verbal Rating Scale (VRS) scale: 0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain.
If the subject rated pain intensity as "2" or "3", pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from pain scores taken at baseline.
Time Frame
Every two hours from baseline to 4 hours post dose
Title
SPID Scores at 6 Hours
Description
SPID was calculated as sum of products of Pain Intensity Differences (PID) at a given time-point (t) with the time-interval from that time-point to the previous time-point (t-1). The time-intervals used were 0-15, 15-30, 30-45, 45-60, 60-90, 90-120, 120-240, 240-300 and 300-360. Positive and higher scores indicate greater reduction in pain.
SPIDt = ∑PID x (timet - timet-1)
Pain Intensity was assessed at baseline and at each time-point based on a 4-point categorical Verbal Rating Scale (VRS) scale: 0-no pain, 1-mild pain, 2-moderate pain, 3-severe pain.
If the subject rated pain intensity as "2" or "3", pain was assessed using a 100 mm Visual Analog Scale (VAS) [0 (no pain), 100 (worst pain)]. VAS scores were converted into PID scores by subtracting them from pain scores taken at baseline.
Time Frame
Every two hours from baseline to 6 hours post dose
Title
Participants Global Assessment to Response to Treatment (PGART)
Description
PGART was measured by a score in a scale from 0-4: 0- Poor; 1- Fair 2- Good; 3- Very Good; 4- Excellent.
Time Frame
Baseline to 6 hours post dose
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
45 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Subjects aged 18 to 45 years with moderate-to-severe dental pain as assessed by verbal rating scale (VRS) and confirmed by a score of at least 50 mm out of 100 mm using a visual analogue (VAS) following the surgical removal of up to two mandibular third molars. If only one mandibular third molar is removed, it must be a full bony impaction. If two mandibular third molars are removed, both may be partial bony impactions OR there may be a combination of one full bony impaction with the second tooth being erupted, soft tissue impaction, or partial bony impaction. Ipsilateral maxillary third molars may be removed at the surgeon's discretion, regardless of impaction level.
Exclusion Criteria:
Pregnant and lactating females
Allergy/intolerance to study materials or nitrous oxide or local anaesthetic used during surgery
Current or recurrent liver, kidney or cardiac disease, stomach ulcers, gastrointestinal bleeding, gastroesophageal reflux disease, bronchospasm, rhinitis, urticaria or asthma
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
GSK Clinical Trials
Organizational Affiliation
GlaxoSmithKline
Official's Role
Study Director
Facility Information:
Facility Name
Jean Brown Research
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84124
Country
United States
12. IPD Sharing Statement
Citations:
PubMed Identifier
23972577
Citation
Yue Y, Collaku A, Brown J, Buchanan WL, Reed K, Cooper SA, Otto J. Efficacy and speed of onset of pain relief of fast-dissolving paracetamol on postsurgical dental pain: two randomized, single-dose, double-blind, placebo-controlled clinical studies. Clin Ther. 2013 Sep;35(9):1306-20. doi: 10.1016/j.clinthera.2013.07.422. Epub 2013 Aug 22.
Results Reference
derived
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Post-operative Dental Pain Study Comparing Two Different Dosage of Analgesic Efficacy
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