Trial Outcomes & Findings for Does a Single Intravenous Dose of Ketamine Reduce the Need for Supplemental Opioids in Post-Cesarean Section Patients? (NCT NCT00486902)

NCT ID: NCT00486902

Last Updated: 2014-04-14

Results Overview

Request for oral hydrocodone/acetaminophen for pain not controlled by around the clock non-steroidal antiflammatory drugs in the first 24 hours following cesarean delivery.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

188 participants

Primary outcome timeframe

24 hours

Results posted on

2014-04-14

Participant Flow

The trial was conducted at Prentice Women's Hospital between August 2006 and November 2006.

188 subjects were recruited for the study. 5 subjects in the ketamine group and 3 in the saline group were excluded after randomization but before study drug administration.

Participant milestones

Participant milestones
Measure
Ketamine
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Overall Study
STARTED
94
94
Overall Study
COMPLETED
85
89
Overall Study
NOT COMPLETED
9
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Ketamine
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Overall Study
Withdrawal by Subject
1
2
Overall Study
decision for postpartum tubal ligation
3
1
Overall Study
spinal anesthetic protocal violation
1
1
Overall Study
Did not meet inclusion criteria
1
0
Overall Study
No toradol due to hemmorhage or allergy
3
1

Baseline Characteristics

Does a Single Intravenous Dose of Ketamine Reduce the Need for Supplemental Opioids in Post-Cesarean Section Patients?

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Ketamine
n=94 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=94 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Total
n=188 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Categorical
Between 18 and 65 years
94 Participants
n=99 Participants
94 Participants
n=107 Participants
188 Participants
n=206 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Continuous
34 years
STANDARD_DEVIATION 3 • n=99 Participants
34 years
STANDARD_DEVIATION 3 • n=107 Participants
34 years
STANDARD_DEVIATION 3 • n=206 Participants
Sex: Female, Male
Female
94 Participants
n=99 Participants
94 Participants
n=107 Participants
188 Participants
n=206 Participants
Sex: Female, Male
Male
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=99 Participants
8 Participants
n=107 Participants
12 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
90 Participants
n=99 Participants
86 Participants
n=107 Participants
176 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
4 Participants
n=99 Participants
1 Participants
n=107 Participants
5 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
4 Participants
n=99 Participants
6 Participants
n=107 Participants
10 Participants
n=206 Participants
Race (NIH/OMB)
White
71 Participants
n=99 Participants
76 Participants
n=107 Participants
147 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
6 Participants
n=99 Participants
6 Participants
n=107 Participants
12 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
9 Participants
n=99 Participants
5 Participants
n=107 Participants
14 Participants
n=206 Participants
Region of Enrollment
United States
94 participants
n=99 Participants
94 participants
n=107 Participants
188 participants
n=206 Participants

PRIMARY outcome

Timeframe: 24 hours

Population: Analysis was performed per protocol

Request for oral hydrocodone/acetaminophen for pain not controlled by around the clock non-steroidal antiflammatory drugs in the first 24 hours following cesarean delivery.

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Number of Subjects Requiring Supplemental Analgesia in the First 24 Hours Following Cesarean Delivery
64 participants
66 participants

SECONDARY outcome

Timeframe: 24 hours

Numeric rating of pain scores (NRS) scale (0 to 10) at time of supplemental analgesia request. Zero is no pain and 10 is worst pain imaginable.

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Verbal Pain Scores (0 to 10) at First Analgesia Request
3 Scores on a scale
Interval 2.0 to 4.0
4 Scores on a scale
Interval 2.0 to 5.0

SECONDARY outcome

Timeframe: 72 hours

Population: Analysis was per protocol

Cumulative hydrocodone/acetaminophen for supplemental analgesia to treat breakthrough pain for 72 hours following cesarean delivery

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Cumulative Hydrocodone/Acetaminophen for Supplemental Analgesia to Treat Breakthrough Pain
10 tablets
Interval 6.0 to 14.0
9 tablets
Interval 5.0 to 12.0

SECONDARY outcome

Timeframe: 24 hours

Number of subjects reporting nausea in first 24 hours following cesarean delivery

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Postoperative Nausea
27 participants
30 participants

SECONDARY outcome

Timeframe: 24 hours

Number of subjects that vomited in the first 24 hours following cesarean delivery

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Postoperative Vomiting
13 participants
13 participants

SECONDARY outcome

Timeframe: 24 hours

Number of subjects with pruritus in the first 24 hours following cesarean delivery

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Postperative Pruritus
12 participants
19 participants

SECONDARY outcome

Timeframe: 72 hours

Number of subject reporting disturbing dreams at 72 hours post cesarean delivery

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Disturbing Dreams
0 participants
0 participants

POST_HOC outcome

Timeframe: 2 weeks

Numeric rating for pain score (0 to 10) reported at 2 weeks following cesarean delivery. Zero is no pain and 10 is worst pain imaginable.

Outcome measures

Outcome measures
Measure
Ketamine
n=85 Participants
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 Participants
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Pain Score (0-10) at 2 Weeks Following Cesarean Delivery
2 Scores on a scale
Interval 1.0 to 3.0
2.6 Scores on a scale
Interval 1.0 to 4.0

Adverse Events

Ketamine

Serious events: 0 serious events
Other events: 30 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 7 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Ketamine
n=85 participants at risk
Subjects receive IV ketamine 10 mg 5 minutes after infant delivery.
Placebo
n=89 participants at risk
Subjects receive IV Saline 20 mL 5 minutes after infant delivery
Psychiatric disorders
Spontaneous complaint of psycho-mimetic reaction
35.3%
30/85 • Number of events 30
7.9%
7/89 • Number of events 7

Additional Information

Dr. Robert J. McCarthy

Northwestern University Feinberg School of Medicine

Phone: 312-926-9015

Results disclosure agreements

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