Trial Outcomes & Findings for Optimizing Dose of Bupivacaine in Combined Spinal Epidurals To Reduce Side Effects (NCT NCT02159807)

NCT ID: NCT02159807

Last Updated: 2019-01-03

Results Overview

Maternal diastolic blood pressure at 60 minutes after epidural to measure maternal hypotension

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

170 participants

Primary outcome timeframe

at 1 hour

Results posted on

2019-01-03

Participant Flow

Enrollment period from April 2015 and completed Dec 2017

Participant milestones

Participant milestones
Measure
1.25 mg Bupivacaine
1.25mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
1.66 mg Bupivacaine
1.66mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
2.5 mg Bupivacaine
2.5mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
Overall Study
STARTED
67
52
51
Overall Study
COMPLETED
66
51
48
Overall Study
NOT COMPLETED
1
1
3

Reasons for withdrawal

Reasons for withdrawal
Measure
1.25 mg Bupivacaine
1.25mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
1.66 mg Bupivacaine
1.66mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
2.5 mg Bupivacaine
2.5mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
Overall Study
Adverse Event
0
0
1
Overall Study
No CSF
1
1
1
Overall Study
elevated blood pressure
0
0
1

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
1.25 mg Bupivacaine
n=66 Participants
1.25mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
1.66 mg Bupivacaine
n=51 Participants
1.66mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
2.5 mg Bupivacaine
n=48 Participants
2.5mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
Total
n=165 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=66 Participants
0 Participants
n=51 Participants
0 Participants
n=48 Participants
0 Participants
n=165 Participants
Age, Categorical
Between 18 and 65 years
66 Participants
n=66 Participants
51 Participants
n=51 Participants
48 Participants
n=48 Participants
165 Participants
n=165 Participants
Age, Categorical
>=65 years
0 Participants
n=66 Participants
0 Participants
n=51 Participants
0 Participants
n=48 Participants
0 Participants
n=165 Participants
Sex: Female, Male
Female
66 Participants
n=66 Participants
51 Participants
n=51 Participants
48 Participants
n=48 Participants
165 Participants
n=165 Participants
Sex: Female, Male
Male
0 Participants
n=66 Participants
0 Participants
n=51 Participants
0 Participants
n=48 Participants
0 Participants
n=165 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Fetal Heart Rate (FHR)
141.13 beats per min
STANDARD_DEVIATION 12.34 • n=66 Participants
136.08 beats per min
STANDARD_DEVIATION 9.8 • n=51 Participants
135.23 beats per min
STANDARD_DEVIATION 9.57 • n=48 Participants
137.48 beats per min
STANDARD_DEVIATION 10.57 • n=165 Participants
Pain Score
8.15 units on a scale
STANDARD_DEVIATION 2.27 • n=66 Participants
8.24 units on a scale
STANDARD_DEVIATION 1.61 • n=51 Participants
8.61 units on a scale
STANDARD_DEVIATION 1.51 • n=48 Participants
8.33 units on a scale
STANDARD_DEVIATION 1.79 • n=165 Participants

PRIMARY outcome

Timeframe: at 1 hour

Maternal diastolic blood pressure at 60 minutes after epidural to measure maternal hypotension

Outcome measures

Outcome measures
Measure
1.25 mg Bupivacaine
n=66 Participants
1.25mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
1.66 mg Bupivacaine
n=51 Participants
1.66mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
2.5 mg Bupivacaine
n=48 Participants
2.5mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
Maternal Blood Pressure
78.2 mm/Hg
Standard Deviation 8.17
79.58 mm/Hg
Standard Deviation 9.25
80.52 mm/Hg
Standard Deviation 8.51

SECONDARY outcome

Timeframe: at 1 hour

Baby's heart rate recorded with the external monitor that is placed on patient's belly, for a duration of 60 minutes after the placement of the combined spinal epidural.

Outcome measures

Outcome measures
Measure
1.25 mg Bupivacaine
n=66 Participants
1.25mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
1.66 mg Bupivacaine
n=51 Participants
1.66mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
2.5 mg Bupivacaine
n=48 Participants
2.5mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
Fetal Heart Rate at 1 Hour
134.73 beats per minute
Standard Deviation 10.87
137.64 beats per minute
Standard Deviation 10.35
135.57 beats per minute
Standard Deviation 10.07

SECONDARY outcome

Timeframe: baseline and 60 minutes

Mean change of her pain relief from the spinal epidural 60 minutes after she received it, using a VAS, scored from 0 to 10, with higher score indicating more pain.

Outcome measures

Outcome measures
Measure
1.25 mg Bupivacaine
n=66 Participants
1.25mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
1.66 mg Bupivacaine
n=51 Participants
1.66mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
2.5 mg Bupivacaine
n=48 Participants
2.5mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
Mean Change in Visual Analog Scale for Pain
0.43 score on a scale
Standard Deviation 1.13
0.46 score on a scale
Standard Deviation 1.28
0.26 score on a scale
Standard Deviation 1.07

Adverse Events

1.25 mg Bupivacaine

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

1.66 mg Bupivacaine

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

2.5 mg Bupivacaine

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
1.25 mg Bupivacaine
n=66 participants at risk
1.25mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
1.66 mg Bupivacaine
n=51 participants at risk
1.66mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
2.5 mg Bupivacaine
n=48 participants at risk
2.5mg, mixed with 20 mcg of Fentanyl (also routinely used in standard of care practice), administered intrathecally during placement of the spinal anesthetic. Syringes will be prepared in advance by pharmacy. Twenty micrograms of fentanyl is routinely administered in combination with bupivacaine in the spinal
Vascular disorders
vasovagal response
0.00%
0/66 • 60 minutes
0.00%
0/51 • 60 minutes
2.1%
1/48 • 60 minutes

Additional Information

Dr. Barbara Orlando

Icahn School of Medicine at Mount Sinai

Phone: 917-496-7490

Results disclosure agreements

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