Trial Outcomes & Findings for PAIN - Postoperative Analgesia INvestigation (NCT NCT02111746)

NCT ID: NCT02111746

Last Updated: 2018-10-16

Results Overview

The Numeric Pain Scale (NPS) ranges from 0 ("no pain") to 10 ("worst possible pain").

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

350 participants

Primary outcome timeframe

postoperative day 1

Results posted on

2018-10-16

Participant Flow

Participant milestones

Participant milestones
Measure
Exparel®
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Overall Study
STARTED
172
171
Overall Study
COMPLETED
169
169
Overall Study
NOT COMPLETED
3
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Age wasn't collected for all participants.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Exparel®
n=172 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=171 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Total
n=343 Participants
Total of all reporting groups
Age, Continuous
60.2 years
STANDARD_DEVIATION 14.8 • n=172 Participants • Age wasn't collected for all participants.
61 years
STANDARD_DEVIATION 13.9 • n=171 Participants • Age wasn't collected for all participants.
60.7 years
STANDARD_DEVIATION 14.2 • n=343 Participants • Age wasn't collected for all participants.
Sex: Female, Male
Female
55 Participants
n=172 Participants
67 Participants
n=171 Participants
122 Participants
n=343 Participants
Sex: Female, Male
Male
117 Participants
n=172 Participants
104 Participants
n=171 Participants
221 Participants
n=343 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
27 Participants
n=172 Participants • Ethnicity data wasn't collected from all participants.
26 Participants
n=171 Participants • Ethnicity data wasn't collected from all participants.
53 Participants
n=343 Participants • Ethnicity data wasn't collected from all participants.
Ethnicity (NIH/OMB)
Not Hispanic or Latino
139 Participants
n=172 Participants • Ethnicity data wasn't collected from all participants.
132 Participants
n=171 Participants • Ethnicity data wasn't collected from all participants.
271 Participants
n=343 Participants • Ethnicity data wasn't collected from all participants.
Ethnicity (NIH/OMB)
Unknown or Not Reported
6 Participants
n=172 Participants • Ethnicity data wasn't collected from all participants.
13 Participants
n=171 Participants • Ethnicity data wasn't collected from all participants.
19 Participants
n=343 Participants • Ethnicity data wasn't collected from all participants.
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=145 Participants • Race data wasn't collected from all participants.
0 Participants
n=145 Participants • Race data wasn't collected from all participants.
0 Participants
n=290 Participants • Race data wasn't collected from all participants.
Race (NIH/OMB)
Asian
6 Participants
n=145 Participants • Race data wasn't collected from all participants.
4 Participants
n=145 Participants • Race data wasn't collected from all participants.
10 Participants
n=290 Participants • Race data wasn't collected from all participants.
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=145 Participants • Race data wasn't collected from all participants.
0 Participants
n=145 Participants • Race data wasn't collected from all participants.
0 Participants
n=290 Participants • Race data wasn't collected from all participants.
Race (NIH/OMB)
Black or African American
35 Participants
n=145 Participants • Race data wasn't collected from all participants.
25 Participants
n=145 Participants • Race data wasn't collected from all participants.
60 Participants
n=290 Participants • Race data wasn't collected from all participants.
Race (NIH/OMB)
White
98 Participants
n=145 Participants • Race data wasn't collected from all participants.
103 Participants
n=145 Participants • Race data wasn't collected from all participants.
201 Participants
n=290 Participants • Race data wasn't collected from all participants.
Race (NIH/OMB)
More than one race
0 Participants
n=145 Participants • Race data wasn't collected from all participants.
0 Participants
n=145 Participants • Race data wasn't collected from all participants.
0 Participants
n=290 Participants • Race data wasn't collected from all participants.
Race (NIH/OMB)
Unknown or Not Reported
6 Participants
n=145 Participants • Race data wasn't collected from all participants.
13 Participants
n=145 Participants • Race data wasn't collected from all participants.
19 Participants
n=290 Participants • Race data wasn't collected from all participants.
Region of Enrollment
United States
172 participants
n=172 Participants
171 participants
n=171 Participants
343 participants
n=343 Participants

PRIMARY outcome

Timeframe: postoperative day 1

Population: Intention-to-treat analysis. Data for this measure was collected for only 153 in the Exparel arm and 152 in the Regular Bupivacaine group.

The Numeric Pain Scale (NPS) ranges from 0 ("no pain") to 10 ("worst possible pain").

Outcome measures

Outcome measures
Measure
Exparel®
n=153 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=152 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by a Numeric Pain Scale (NPS)
5.05 units on a scale
Standard Deviation 2.8
5.02 units on a scale
Standard Deviation 2.68

PRIMARY outcome

Timeframe: postoperative day 2

Population: Intention-to-treat analysis. Data for this measure was collected for only 160 in the Exparel arm and 159 in the Regular Bupivacaine group.

The Numeric Pain Scale (NPS) ranges from 0 ("no pain") to 10 ("worst possible pain").

Outcome measures

Outcome measures
Measure
Exparel®
n=160 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=159 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by a Numeric Pain Scale (NPS)
4.69 units on a scale
Standard Deviation 2.49
4.08 units on a scale
Standard Deviation 2.64

PRIMARY outcome

Timeframe: postoperative day 3

Population: Intention-to-treat analysis. Data for this measure was collected for only 159 in the Exparel arm and 151 in the Regular Bupivacaine group.

The Numeric Pain Scale (NPS) ranges from 0 ("no pain") to 10 ("worst possible pain").

Outcome measures

Outcome measures
Measure
Exparel®
n=159 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=151 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by a Numeric Pain Scale (NPS)
3.71 units on a scale
Standard Deviation 2.42
3.03 units on a scale
Standard Deviation 2.47

PRIMARY outcome

Timeframe: postoperative day 1

Population: Intention-to-treat analysis. Data for this measure was collected for only 144 in the Exparel arm and 146 in the Regular Bupivacaine group.

The 5-point satisfaction scale ranges from 1 (extremely dissatisfied) to 5 (extremely satisfied).

Outcome measures

Outcome measures
Measure
Exparel®
n=144 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=146 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by a Five-point Satisfaction Scale
4.08 units on a scale
Standard Deviation 1.16
3.99 units on a scale
Standard Deviation 1.35

PRIMARY outcome

Timeframe: postoperative day 2

Population: Intention-to-treat analysis. Data for this measure was collected for only 155 in the Exparel arm and 155 in the Regular Bupivacaine group.

The 5-point satisfaction scale ranges from 1 (extremely dissatisfied) to 5 (extremely satisfied).

Outcome measures

Outcome measures
Measure
Exparel®
n=155 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=155 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by a Five-point Satisfaction Scale
4.23 units on a scale
Standard Deviation 1.05
4.12 units on a scale
Standard Deviation 1.33

PRIMARY outcome

Timeframe: postoperative day 3

Population: Intention-to-treat analysis. Data for this measure was collected for only 148 in the Exparel arm and 148 in the Regular Bupivacaine group.

The 5-point satisfaction scale ranges from 1 (extremely dissatisfied) to 5 (extremely satisfied).

Outcome measures

Outcome measures
Measure
Exparel®
n=148 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=148 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by a Five-point Satisfaction Scale
4.37 units on a scale
Standard Deviation 0.99
4.37 units on a scale
Standard Deviation 1.11

PRIMARY outcome

Timeframe: postoperative day 1

Population: Intention-to-treat analysis. Data for this measure was collected for only 142 in the Exparel arm and 140 in the Regular Bupivacaine group.

The Brief Pain Inventory (BPI) ranges from 0 ("no pain") to 10 ("worst pain you can imagine").

Outcome measures

Outcome measures
Measure
Exparel®
n=142 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=140 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by the Brief Pain Inventory (BPI)
5.49 units on a scale
Standard Deviation 2.51
5.41 units on a scale
Standard Deviation 2.52

PRIMARY outcome

Timeframe: postoperative day 2

Population: Intention-to-treat analysis. Data for this measure was collected for only 151 in the Exparel arm and 149 in the Regular Bupivacaine group.

The Brief Pain Inventory (BPI) ranges from 0 ("no pain") to 10 ("worst pain you can imagine").

Outcome measures

Outcome measures
Measure
Exparel®
n=151 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=149 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by the Brief Pain Inventory (BPI)
4.48 units on a scale
Standard Deviation 2.38
4.4 units on a scale
Standard Deviation 2.5

PRIMARY outcome

Timeframe: postoperative day 3

Population: Intention-to-treat analysis. Data for this measure was collected for only 150 in the Exparel arm and 135 in the Regular Bupivacaine group.

The Brief Pain Inventory (BPI) ranges from 0 ("no pain") to 10 ("worst pain you can imagine").

Outcome measures

Outcome measures
Measure
Exparel®
n=150 Participants
Patients will receive will receive the study drug \[bupivacaine liposomal injectable suspension (Exparel®)\] and Patient Controlled Analgesia (PCA). Exparel: Participants will receive 266mg of liposomal bupivicaine (equivalent of one 1.3% 20ml vial of EXPAREL®) diluted in 60ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Regular Bupivacaine
n=135 Participants
Patients will receive will receive the standard regular bupivacaine hydrochloride (HCl) and PCA. Bupivacaine HCl is an FDA-approved injectable suspension. Bupivacaine hydrochloride: Participants will receive 125mg of bupivacaine hydrochloride (equivalent of one 0.25% 50ml or five 0.25% 10ml vials ) diluted in 30ml of preservative-free normal (0.9%) sterile saline for a total volume of 80mL. Drug will be administered at the end of the procedure just prior to wound closure. Patient Controlled Analgesia (PCA): Patients will have access to the standard Patient Controlled Analgesia (PCA) offered at the Memorial Hermann Hospital - Texas Medical Center. The PCA drug will be Dilaudid (hydromorphone). Initial dosing will be per the standard hospital protocol of 0.2 mg demand dose, 10 minute lockout, 2 mg per hour max, 0.4 mg rescue dose. Adjustments to the PCA dosing will be made based on clinical needs. Patients will receive PCA until the third postoperative day
Postoperative Pain as Assessed by the Brief Pain Inventory (BPI)
4 units on a scale
Standard Deviation 2.35
3.53 units on a scale
Standard Deviation 3.6

SECONDARY outcome

Timeframe: Over the first 72 hours after surgery

The total amount in mg of opioid medication consumed through 12, 24, 36, 48, 60, and 72 hours after surgery will be assessed.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Participants will be followed for the duration of hospital stay, an expected average of 4 weeks

Indirect outcome measure to assess the adequacy of postoperative pain control as an indicator of improvement in healing period, patient participation in physical therapy and faster patient mobilization, and overall health care cost

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Will be assessed preoperatively, on the first post-op day (POD 1), on POD2, and POD 3

The impact of pain on patient's quality of life will be assessed through a brief pain inventory (BPI). In addition, the 5-point scale analgesia satisfaction survey will be used along with the BPI to assess patient satisfaction and quality of life.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 72 hours after surgery

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: duration of hospital stay, an expected average of 4 weeks

Hospital cost for patient care during hospitalization will be estimated from hospital charges and financial records.

Outcome measures

Outcome data not reported

Adverse Events

Exparel®

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

Regular Bupivacaine

Serious events: 0 serious events
Other events: 0 other events
Deaths: 2 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Kristofer M Charlton-Ouw

The University of Texas Health Science Center at Houston

Phone: (713) 486-5100

Results disclosure agreements

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