- 30% Responder Rate on Day 3. [ Time Frame: Day 3 ] [ Designated as safety issue: No ]
The 30% responder rate was defined as the proportion of participants with a value of percentage change greater than or equal to the 30% from baseline in pain intensity at Day 3 (average of Day 3 PM and Day 4 AM).
- 50% Responder Rate on Day 3. [ Time Frame: Day 3 ] [ Designated as safety issue: No ]
The 50% responder rate was defined as the proportion of participants with a value of percentage change greater than or equal to the 50% from baseline in pain intensity at Day 3 (average of Day 3 PM and Day 4 AM).
- 30% Responder Rate on Day 5. [ Time Frame: Day 5 ] [ Designated as safety issue: No ]
The 30% responder rate was defined as the proportion of participants with a value of percentage change greater than or equal to the 30% from baseline in pain intensity at Day 5 (average of Day 5 PM and Day 6 AM).
- 50% Responder Rate on Day 5. [ Time Frame: Day 5 ] [ Designated as safety issue: No ]
The 50% responder rate was defined as the proportion of participants with a value of percentage change greater than or equal to the 50% from baseline in pain intensity at Day 5 (average of Day 5 PM and Day 6 AM).
- 30% Responder Rate on Day 10. [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The 30% responder rate was defined as the proportion of participants with a value of percentage change greater than or equal to the 30% from baseline in pain intensity at Day 10 (average of Day 9 PM and Day 10 AM).
- 50% Responder Rate on Day 10. [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The 50% responder rate was defined as the proportion of participants with a value of percentage change greater than or equal to the 50% from baseline in pain intensity at Day 10 (average of Day 9 PM and Day 10 AM).
- Sum of Pain Intensity Difference Over 2 Days (SPID48) [ Time Frame: 2 Days (48 hours) ] [ Designated as safety issue: No ]
Pain Intensity (PI) was assessed on 11-point numerical rating scale from 0=no pain to 10=pain as bad as you can imagine. Pain Intensity Difference (PID) was the difference between baseline PI (prior to the first dose) and current PI at assessment. SPID48 was calculated as the time-weighted Sum of PID scores over 48 hours. The range of SPID48 is from -480 to 480. The higher value in SPID indicates greater pain relief.
- Sum of Pain Intensity Difference Over 5 Days (SPID120) [ Time Frame: 5 Days (120 hours) ] [ Designated as safety issue: No ]
Pain Intensity (PI) was assessed on 11-point numerical rating scale from 0=no pain to 10=pain as bad as you can imagine. Pain Intensity Difference (PID) was the difference between baseline PI (prior to the first dose) and current PI at assessment. SPID120 was calculated as the time-weighted Sum of PID scores over 120 hours. The range of SPID120 is from -1200 to 1200. The higher value in SPID indicates greater pain relief.
- Sum of Pain Intensity Difference Over 10 Days [ Time Frame: 10 Days (216 Hours) ] [ Designated as safety issue: No ]
Pain Intensity (PI) was assessed on 11-point numerical rating scale from 0=no pain to 10=pain as bad as you can imagine. Pain Intensity Difference (PID) was the difference between baseline PI (prior to the first dose) and current PI at assessment. Sum of Pain Intensity Difference Over 10 Days was calculated as the time-weighted Sum of PID scores up to Day 10, 8 AM. The range is from -2160 to 2160. The higher value in Sum of Pain Intensity Difference indicates greater pain relief.
- Total Pain Relief (TOTPAR) Over 2 Days [ Time Frame: 2 Days (48 Hours) ] [ Designated as safety issue: No ]
Pain Relief was defined as a 5-point categorical scale of 0-4 (0=none, 1=A little, 2=Some, 3=A lot, 4=Complete). Total Pain Relief (TOTPAR) was calculated as the time-weighted sum over all pain relief up to hour 48. The range of TOTPAR over 2 days is from 0 to 192. A higher value in TOTPAR indicated greater pain relief.
- Total Pain Relief (TOTPAR) Over 3 Days [ Time Frame: 3 Days (72 Hours) ] [ Designated as safety issue: No ]
Pain Relief was defined as a 5-point categorical scale of 0-4 (0=none, 1=A little, 2=Some, 3=A lot, 4=Complete). Total Pain Relief (TOTPAR) was calculated as the time-weighted sum over all pain relief up to hour 72. The range of TOTPAR over 3 days is from 0 to 288. A higher value in TOTPAR indicated greater pain relief.
- Total Pain Relief (TOTPAR) Over 5 Days [ Time Frame: 5 Days (120 Hours) ] [ Designated as safety issue: No ]
Pain Relief was defined as a 5-point categorical scale of 0-4 (0=none, 1=A little, 2=Some, 3=A lot, 4=Complete). Total Pain Relief (TOTPAR) was calculated as the time-weighted sum over all pain relief up to hour 120. The range of TOTPAR over 5 days is from 0 to 480. A higher value in TOTPAR indicated greater pain relief.
- Total Pain Relief (TOTPAR) Over 10 Days [ Time Frame: 10 Days (216 Hours) ] [ Designated as safety issue: No ]
Pain Relief was defined as a 5-point categorical scale of 0-4 (0=none, 1=A little, 2=Some, 3=A lot, 4=Complete). Total Pain Relief (TOTPAR) was calculated as the time-weighted sum over all pain relief up to Day 10, 8 AM. The range of TOTPAR over 10 days is from 0 to 864. A higher value in TOTPAR indicated greater pain relief.
- Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) Over 2 Days [ Time Frame: 2 Days ] [ Designated as safety issue: No ]
The Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) was derived from Sum of TOTPAR and SPID. The range of SPRID over 2 days is from -480 to 672. A higher value in SPRID indicated greater pain relief.
- Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) Over 3 Days [ Time Frame: 3 Days ] [ Designated as safety issue: No ]
The Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) was derived from Sum of TOTPAR and SPID. The range of SPRID over 3 days is from -720 to 1008. A higher value in SPRID indicated greater pain relief.
- Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) Over 5 Days [ Time Frame: 5 Days ] [ Designated as safety issue: No ]
The Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) was derived from Sum of TOTPAR and SPID. The range of SPRID over 5 days is from -1200 to 1680. A higher value in SPRID indicated greater pain relief.
- Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) Over 10 Days [ Time Frame: 10 Days ] [ Designated as safety issue: No ]
The Sum of Total Pain Relief and Sum of Pain Intensity Difference (SPRID) was derived from Sum of TOTPAR and SPID. The range of SPRID over 10 days is from -2160 to 3024. A higher value in SPRID indicated greater pain relief.
- Change From Baseline in Physical Performance: Measured Walk - Change in Distance Walked in the End of Study [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The participants were assessed whether were able to walk for 4 meters at each visit. For those subjects who were unable to walk 4 meters, the distance walked would be recorded. For those completed the walk, 4 meters were recorded. The change in distance walked at the end of study was derived using the distance walked at baseline minus the distance walked at the end of study (Day 10). The range of change in distance walked is from -4 to 4. A negative value indicated better performance.
- Change From Baseline in Physical Performance: Measured Walk - Change in Time Taken Per Meter to Take Walk in the End of Study [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The time for the subject to walk for 4 meters was measured at baseline and the end of study. Change = baseline - end of study. For the change in each treatment group, only subjects who were assessed at both baseline and end of study were summarized. A positive value of Change indicated performance improved.
- Change From Baseline in Physical Performance: Chair Stand - Change in Number of Chair Stands Completed in the End of Study [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The participants were assessed whether were able to rise from a chair 5 times at each visit. For those subjects who were unable to complete all 5 rises, the number of rises would be recorded. For those completed the 5 rises, 5 were recorded. The change in number of chair stands at the end of study was derived using the number of chair stands at baseline minus the number of chair stands at the end of study (Day 10). The range of change in number of chair stands is from -5 to 5. A negative value indicated better performance.
- Change From Baseline in Physical Performance: Chair Stand - Change in Time Taken to Complete Chair Stands in the End of Study [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The time for the subject to rise from a chair 5 times was measured at baseline and the end of study.
Change = baseline - end of study. For the change in each treatment group, only subjects who were assessed at both baseline and end of study were summarized. A positive value of Change indicated performance improved.
- Summary of Subject Satisfaction With Treatment on Day 2 [ Time Frame: Day 2 ] [ Designated as safety issue: No ]
Treatment satisfaction was measured using a 7-point scale where 1 = very satisfied and 7 = very dissatisfied.
- Summary of Subject Satisfaction With Treatment on Day 3 [ Time Frame: Day 3 ] [ Designated as safety issue: No ]
Treatment satisfaction was measured using a 7-point scale where 1 = very satisfied and 7 = very dissatisfied.
- Summary of Subject Satisfaction With Treatment on Day 5 [ Time Frame: Day 5 ] [ Designated as safety issue: No ]
Treatment satisfaction was measured using a 7-point scale where 1 = very satisfied and 7 = very dissatisfied.
- Summary of Subject Satisfaction With Treatment on Day 10 [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
Treatment satisfaction was measured using a 7-point scale where 1 = very satisfied and 7 = very dissatisfied.
- Sleep Quality - Shift From Baseline to End of Study (Tapentadol IR) [ Time Frame: 10 days ] [ Designated as safety issue: No ]
Sleep Quality was assessed by a 4-point numeric scale (1=excellent, 2=good, 3=fair, and 4=poor). The sleep question was "Please rate the overall quality of your sleep last night.", which was administered via Interactive Voice Response (IVR) system in the morning.
- Sleep Quality - Shift From Baseline to End of Study (Oxycodone IR) [ Time Frame: 10 days ] [ Designated as safety issue: No ]
Sleep Quality was assessed by a 4-point numeric scale (1=excellent, 2=good, 3=fair, and 4=poor). The sleep question was "Please rate the overall quality of your sleep last night.", which was administered via IVR system in the morning.
- Sleep Quality - Shift From Baseline to End of Study (Placebo) [ Time Frame: 10 days ] [ Designated as safety issue: No ]
Sleep Quality was assessed by a 4-point numeric scale (1=excellent, 2=good, 3=fair, and 4=poor). The sleep question was "Please rate the overall quality of your sleep last night.", which was administered via IVR system in the morning.
- Summary of Functionality: Dressing - Proportion With at Least 2 Points of Improvement From Baseline to Day 2 [ Time Frame: Day 2 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Dressing - Proportion With at Least 2 Points of Improvement From Baseline to Day 3 [ Time Frame: Day 3 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Dressing - Proportion With at Least 2 Points of Improvement From Baseline to Day 5 [ Time Frame: Day 5 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Dressing - Proportion With at Least 2 Points of Improvement From Baseline to Day 10 [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Bath/Shower - Proportion With at Least 2 Points of Improvement From Baseline to Day 2 [ Time Frame: Day 2 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Bath/Shower - Proportion With at Least 2 Points of Improvement From Baseline to Day 3 [ Time Frame: Day 3 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Bath/Shower - Proportion With at Least 2 Points of Improvement From Baseline to Day 5 [ Time Frame: Day 5 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Bath/Shower - Proportion With at Least 2 Points of Improvement From Baseline to Day 10 [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Chair - Proportion With at Least 2 Points of Improvement From Baseline to Day 2 [ Time Frame: Day 2 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Chair - Proportion With at Least 2 Point of Improvement From Baseline to Day 3 [ Time Frame: Day 3 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Chair - Proportion With at Least 2 Points of Improvement From Baseline to Day 5 [ Time Frame: Day 5 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Summary of Functionality: Chair - Proportion With at Least 2 Points of Improvement From Baseline to Day 10 [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
Level of functionality assessed using a 5-point scale where 0=no difficulty and 4=impossible without help.
- Patient Global Impression of Change (PGIC) at End of Study [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
Patient Global Impression of Change (PGIC) was defined as the 7-point numeric scale, where 1=very much improved to 7=very much worse.
- Clinician Global Impression of Change (CGIC) at End of Study [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
Clinician Global Impression of Change (CGIC) was defined as the 7-point numeric scale, where 1=very much improved to 7=very much worse.
- Summary of Clinician Ease-of-Care at the End of Study: Time Comsuming [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The Clinician Ease-of-Care was defined on a 6-point scale, where 0 = "not at all" to 5="a very great deal."
- Summary of Clinician Ease-of-Care at the End of Study: Bothersome [ Time Frame: Day 10 ] [ Designated as safety issue: No ]
The Clinician Ease-of-Care was defined on a 6-point scale, where 0 = "not at all" to 5="a very great deal."