Trial Outcomes & Findings for Does Duloxetine Reduce Sub-Acute Pain After Knee Arthroplasty? (NCT NCT02005601)

NCT ID: NCT02005601

Last Updated: 2017-08-29

Results Overview

When considering the pain in the knee in which you are having/had surgery, on a scale of 0-10, with 0 being no pain and 10 being pain as bad as you can imagine, how would you describe your level of pain in the last 24 hours during ambulation?

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

106 participants

Primary outcome timeframe

2 weeks after surgery

Results posted on

2017-08-29

Participant Flow

Participant milestones

Participant milestones
Measure
Duloxetine
Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken preoperatively. Starting on postoperative day (POD) 1, patients will take one capsule once a day until end of POD14. Duloxetine 60mg: Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Control
Patients will receive 0mg of duloxetine Placebo: Patients will receive placebo drug with no active ingredients per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Overall Study
STARTED
53
53
Overall Study
COMPLETED
53
53
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Does Duloxetine Reduce Sub-Acute Pain After Knee Arthroplasty?

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Duloxetine
n=53 Participants
Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken preoperatively. Starting on postoperative day (POD) 1, patients will take one capsule once a day until end of POD14. Duloxetine 60mg: Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Control
n=53 Participants
Patients will receive 0mg of duloxetine Placebo: Patients will receive placebo drug with no active ingredients per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Total
n=106 Participants
Total of all reporting groups
Age, Continuous
67 years
n=5 Participants
63 years
n=7 Participants
64 years
n=5 Participants
Sex: Female, Male
Female
28 Participants
n=5 Participants
26 Participants
n=7 Participants
54 Participants
n=5 Participants
Sex: Female, Male
Male
25 Participants
n=5 Participants
27 Participants
n=7 Participants
52 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
50 Participants
n=5 Participants
46 Participants
n=7 Participants
96 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
4 Participants
n=7 Participants
4 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
4 Participants
n=7 Participants
6 Participants
n=5 Participants
Race (NIH/OMB)
White
48 Participants
n=5 Participants
48 Participants
n=7 Participants
96 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Region of Enrollment
United States
53 participants
n=5 Participants
53 participants
n=7 Participants
106 participants
n=5 Participants
Body Mass Index
31 kg/m^2
n=5 Participants
31 kg/m^2
n=7 Participants
31 kg/m^2
n=5 Participants
Knee pain severity with ambulation
5.8 Units on a scale
STANDARD_DEVIATION 2.5 • n=5 Participants
5.2 Units on a scale
STANDARD_DEVIATION 2.6 • n=7 Participants
5.5 Units on a scale
STANDARD_DEVIATION 2.6 • n=5 Participants

PRIMARY outcome

Timeframe: 2 weeks after surgery

When considering the pain in the knee in which you are having/had surgery, on a scale of 0-10, with 0 being no pain and 10 being pain as bad as you can imagine, how would you describe your level of pain in the last 24 hours during ambulation?

Outcome measures

Outcome measures
Measure
Duloxetine
n=53 Participants
Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken preoperatively. Starting on postoperative day (POD) 1, patients will take one capsule once a day until end of POD14. Duloxetine 60mg: Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Control
n=53 Participants
Patients will receive 0mg of duloxetine Placebo: Patients will receive placebo drug with no active ingredients per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
NRS Pain With Ambulation at 2 Weeks
3.5 NRS pain score
Standard Deviation 2.1
3.8 NRS pain score
Standard Deviation 2.3

SECONDARY outcome

Timeframe: POD 1

Total daily opioid use (including PO, PCEA, IV, subcutaneous, IV push) in mg oral morphine equivalents on POD 1.

Outcome measures

Outcome measures
Measure
Duloxetine
n=53 Participants
Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken preoperatively. Starting on postoperative day (POD) 1, patients will take one capsule once a day until end of POD14. Duloxetine 60mg: Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Control
n=53 Participants
Patients will receive 0mg of duloxetine Placebo: Patients will receive placebo drug with no active ingredients per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Total Daily Opioid Use (mg Oral Morphine Equivalents)
57.8 mg oral morphine equivalents
Standard Deviation 28.4
72.7 mg oral morphine equivalents
Standard Deviation 34.9

SECONDARY outcome

Timeframe: POD 1

Nausea severity measured using Likert scale ranging from 0 (none) to 10 (severe).

Outcome measures

Outcome measures
Measure
Duloxetine
n=53 Participants
Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken preoperatively. Starting on postoperative day (POD) 1, patients will take one capsule once a day until end of POD14. Duloxetine 60mg: Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Control
n=53 Participants
Patients will receive 0mg of duloxetine Placebo: Patients will receive placebo drug with no active ingredients per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Nausea Severity
0.9 units on a scale
Standard Deviation 2.2
2.3 units on a scale
Standard Deviation 3.4

Adverse Events

Duloxetine

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Control

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Duloxetine
n=53 participants at risk
Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken preoperatively. Starting on postoperative day (POD) 1, patients will take one capsule once a day until end of POD14. Duloxetine 60mg: Patients will receive 60mg of duloxetine per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Control
n=53 participants at risk
Patients will receive 0mg of duloxetine Placebo: Patients will receive placebo drug with no active ingredients per dose. 1 capsule will be taken pre-operatively. One capsule once a day until end of POD14.
Cardiac disorders
Atrial fibrillation
0.00%
0/53 • 3 months
1.9%
1/53 • Number of events 1 • 3 months
General disorders
Nausea
3.8%
2/53 • Number of events 2 • 3 months
1.9%
1/53 • Number of events 1 • 3 months
General disorders
Headache
0.00%
0/53 • 3 months
1.9%
1/53 • Number of events 1 • 3 months
General disorders
Somnolence
1.9%
1/53 • Number of events 1 • 3 months
0.00%
0/53 • 3 months
Endocrine disorders
SIADH
1.9%
1/53 • Number of events 1 • 3 months
0.00%
0/53 • 3 months
Psychiatric disorders
Insomnia
0.00%
0/53 • 3 months
0.00%
0/53 • 3 months

Additional Information

Dr. Jacques Yadeau

Hospital for Special Surgery

Phone: 212-606-1206

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place