Trial Outcomes & Findings for Ropivacaine Block Alone or With Perineural or Systemic Dexamethasone for Pain in Shoulder Surgery (NCT NCT01450007)

NCT ID: NCT01450007

Last Updated: 2016-06-17

Results Overview

Duration from time of block until complete resolution of sensory blockade in the shoulder is recorded in minutes by patient report.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

130 participants

Primary outcome timeframe

Within 48 hours

Results posted on

2016-06-17

Participant Flow

Participants were recruited at Mayo Clinic in Arizona from June 2012 to September 2014.

238 patients were screened; of these 41 were excluded because they did not meet inclusion criteria, and 67 were excluded because they declined to be in the study.

Participant milestones

Participant milestones
Measure
Dexamethasone Block
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Overall Study
STARTED
44
42
44
Overall Study
COMPLETED
42
37
41
Overall Study
NOT COMPLETED
2
5
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Dexamethasone Block
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Overall Study
Late exclusion before treatment
2
3
2
Overall Study
Protocol Violation
0
1
1
Overall Study
Adverse Event
0
1
0

Baseline Characteristics

Ropivacaine Block Alone or With Perineural or Systemic Dexamethasone for Pain in Shoulder Surgery

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Dexamethasone Block
n=42 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
n=37 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
n=41 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Total
n=120 Participants
Total of all reporting groups
Age, Continuous
67.5 years
STANDARD_DEVIATION 12.7 • n=5 Participants
68.4 years
STANDARD_DEVIATION 7.7 • n=7 Participants
62.7 years
STANDARD_DEVIATION 11.3 • n=5 Participants
66.14 years
STANDARD_DEVIATION 10.7 • n=4 Participants
Sex: Female, Male
Female
13 Participants
n=5 Participants
11 Participants
n=7 Participants
21 Participants
n=5 Participants
45 Participants
n=4 Participants
Sex: Female, Male
Male
29 Participants
n=5 Participants
26 Participants
n=7 Participants
20 Participants
n=5 Participants
75 Participants
n=4 Participants
Region of Enrollment
United States
42 participants
n=5 Participants
37 participants
n=7 Participants
41 participants
n=5 Participants
120 participants
n=4 Participants

PRIMARY outcome

Timeframe: Within 48 hours

Population: Patients will be included in the primary analysis on the basis of intention to treat.

Duration from time of block until complete resolution of sensory blockade in the shoulder is recorded in minutes by patient report.

Outcome measures

Outcome measures
Measure
Dexamethasone Block
n=42 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
n=37 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
n=41 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Duration of Sensory Blockade
16.9 hours
Standard Deviation 5.2
18.2 hours
Standard Deviation 6.4
13.8 hours
Standard Deviation 3.8

SECONDARY outcome

Timeframe: approximately 24 hours after surgery

Population: The number of participants analyzed is different from the number of participants in each arm who completed the trial because data were not available for 1 participant in the Dexamethasone IV group and 1 participant in the placebo group.

Outcome measures

Outcome measures
Measure
Dexamethasone Block
n=42 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
n=36 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
n=40 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Post Operative Opioid Dose at 24 Hours
12.2 mg morphine equivalents
Standard Deviation 9.3
17.1 mg morphine equivalents
Standard Deviation 15.9
24.1 mg morphine equivalents
Standard Deviation 14.3

SECONDARY outcome

Timeframe: Approximately 10 hours after surgery

Population: The number of participants analyzed is different from the number of participants in each arm who completed the trial because data were not available for 1 participant in the Dexamethasone IV group and 1 participant in the placebo group.

Outcome measures

Outcome measures
Measure
Dexamethasone Block
n=42 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
n=36 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
n=40 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Time Until First Dose of Analgesic
8.4 hours
Standard Deviation 5.6
9.2 hours
Standard Deviation 5.6
8.4 hours
Standard Deviation 4.8

SECONDARY outcome

Timeframe: 24 hours, 48 hours, 1 week

Population: Patients analyzed for each category varied see explanations per row (time point): (n=dexamethasone block, dexamethasone IV, placebo).

Pain was rated on a visual analogue scale with 0 = no pain, 3=mild pain, 5=moderate pain, 7=moderate to severe pain, and 10=severe pain.

Outcome measures

Outcome measures
Measure
Dexamethasone Block
n=42 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
n=37 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
n=41 Participants
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Patient Satisfaction With Pain Control
24 hours (n=34, 28, 37)
7.8 units on a scale
Standard Deviation 2.7
7.9 units on a scale
Standard Deviation 2.6
7.3 units on a scale
Standard Deviation 2.8
Patient Satisfaction With Pain Control
48 hours (n=42, 37, 41)
8.4 units on a scale
Standard Deviation 2.2
8.7 units on a scale
Standard Deviation 2.0
7.6 units on a scale
Standard Deviation 2.9
Patient Satisfaction With Pain Control
1 week (n=42, 36, 41)
9.1 units on a scale
Standard Deviation 1.2
8.8 units on a scale
Standard Deviation 1.7
8.4 units on a scale
Standard Deviation 2.4

Adverse Events

Dexamethasone Block

Serious events: 0 serious events
Other events: 8 other events
Deaths: 0 deaths

Dexamethasone IV

Serious events: 3 serious events
Other events: 2 other events
Deaths: 0 deaths

Placebo

Serious events: 1 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Dexamethasone Block
n=42 participants at risk
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
n=37 participants at risk
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
n=41 participants at risk
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Injury, poisoning and procedural complications
Hospital admission for fall
0.00%
0/42 • One week
2.7%
1/37 • Number of events 1 • One week
0.00%
0/41 • One week
Infections and infestations
Hospital admission for bowel infection
0.00%
0/42 • One week
2.7%
1/37 • Number of events 1 • One week
0.00%
0/41 • One week
Injury, poisoning and procedural complications
Motor vehicle accident with fractured sternum
0.00%
0/42 • One week
2.7%
1/37 • Number of events 1 • One week
0.00%
0/41 • One week
Respiratory, thoracic and mediastinal disorders
Pneumonia
0.00%
0/42 • One week
0.00%
0/37 • One week
2.4%
1/41 • Number of events 1 • One week

Other adverse events

Other adverse events
Measure
Dexamethasone Block
n=42 participants at risk
Blockade with 25 ml ropivacaine 0.5% mixed with 8 mg dexamethasone (0.8 ml), and 5 ml intravenous normal saline
Dexamethasone IV
n=37 participants at risk
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and intravenous 8 mg dexamethasone (0.8 ml dexamethasone, 4.2 ml saline) to total volume of 5 ml
Placebo
n=41 participants at risk
Blockade with 25 ml ropivacaine 0.5% mixed with 0.8 ml normal saline, and 5 ml intravenous normal saline
Skin and subcutaneous tissue disorders
Skin rash
4.8%
2/42 • Number of events 2 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Skin and subcutaneous tissue disorders
Rash
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
2.4%
1/41 • Number of events 1 • One week
Blood and lymphatic system disorders
Syncope
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
2.4%
1/41 • Number of events 1 • One week
General disorders
10 lb fluid weight within 24 hours
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Gastrointestinal disorders
Diarrhea
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Gastrointestinal disorders
ER for nausea and vomiting
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Blood and lymphatic system disorders
Fainting
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Renal and urinary disorders
Frequent urination
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Nervous system disorders
Headache
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Respiratory, thoracic and mediastinal disorders
Hoarse
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Musculoskeletal and connective tissue disorders
Muscle soreness
2.4%
1/42 • Number of events 1 • One week
0.00%
0/37 • One week
0.00%
0/41 • One week
Nervous system disorders
Dizziness
0.00%
0/42 • One week
2.7%
1/37 • Number of events 1 • One week
0.00%
0/41 • One week
Musculoskeletal and connective tissue disorders
Wrist, hand, and finger pain
0.00%
0/42 • One week
2.7%
1/37 • Number of events 1 • One week
0.00%
0/41 • One week
Gastrointestinal disorders
Constipation
0.00%
0/42 • One week
0.00%
0/37 • One week
2.4%
1/41 • Number of events 1 • One week
Nervous system disorders
Cranial nerve XII motor tongue
0.00%
0/42 • One week
0.00%
0/37 • One week
2.4%
1/41 • Number of events 1 • One week
Respiratory, thoracic and mediastinal disorders
Difficulty breathing
0.00%
0/42 • One week
0.00%
0/37 • One week
2.4%
1/41 • Number of events 1 • One week

Additional Information

Dr. David M. Rosenfeld

Mayo Clinic

Phone: 480-301-7586

Results disclosure agreements

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