Trial Outcomes & Findings for Effects of Epidural Lidocaine on the Pharmacokinetic and Pharmacodynamic Profiles of DepoDur® After Cesarean Delivery (NCT NCT00804609)

NCT ID: NCT00804609

Last Updated: 2017-10-12

Results Overview

The primary end point was to evaluate the pharmacokinetic profiles of EREM after either no epidural lidocaine or after an epidural lidocaine top-up for cesarean delivery.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

30 participants

Primary outcome timeframe

a plasma sample at 0, 5, 10, 15, and 30 minutes, and 1, 4, 8, 12, 24, 36, 48, and 72 hours post-dose

Results posted on

2017-10-12

Participant Flow

30 patients enrolled at Stanford clinics

The patients were divided into 2 groups: group E (epidural) consisted of patients undergoing elective cesarean delivery or undergoing nonelective cesarean delivery during labor. Group SE (Spinal-Epidural) consisted of patients undergoing an elective cesarean delivery. Patients received an anesthetic consisting of a combined spinal-epidural.

Participant milestones

Participant milestones
Measure
Epidural DepoDur Following Epidural Lidocaine Administration
Epidural DepoDur was administered 60 minutes after an epidural Lidocaine top-up for surgical anesthetic in cesarean section patients.
Epidural DepoDur Following Spinal Anesthetic
Epidural DepoDur was administered 60 minutes after a standard spinal anesthetic. No prior epidural local anesthetic was used prior to DepoDur in this group assignment.
Overall Study
STARTED
15
15
Overall Study
COMPLETED
15
14
Overall Study
NOT COMPLETED
0
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Effects of Epidural Lidocaine on the Pharmacokinetic and Pharmacodynamic Profiles of DepoDur® After Cesarean Delivery

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Epidural DepoDur Following Epidural Lidocaine Administration
n=15 Participants
Epidural DepoDur was administered 60 minutes after an epidural Lidocaine top-up for surgical anesthetic in cesarean section patients. DepoDur: All participant underwent cesarean delivery. An epidural "top-up" anesthetic consisting of 2% lidocaine with epinephrine 1:200,000 and sodium bicarbonate (1 meq per 10 mL lidocaine) was given. The lidocaine solution was administered in 5 mL increments every 2.5 minutes until a T6 sensory level to touch was attained. Patients also received a 100 mcg dose of fentanyl epidurally after the lidocaine solution had been administered. Provided delivery had occurred at least 60 minutes after the initial lidocaine administration, patients received EREM 8 mg (DepoDur™) administered through the epidural catheter. A 2 mL epidural saline flush was administered before and after drug administration.
Epidural DepoDur Following Spinal Anesthetic
n=15 Participants
Epidural DepoDur was administered 60 minutes after a standard spinal anesthetic. No prior epidural local anesthetic was used prior to DepoDur in this group assignment. DepoDur: Participants underwent an elective cesarean delivery with a combined spinal/epidural. All patients received 12 mg hyperbaric bupivacaine with 20 mcg fentanyl administered intrathecally. No local anesthetic was administered through the catheter. The combined spinal-epidural was performed at the L2/L3 or L3/L4 interspace and the intrathecal dose was injected over 5-10 s. A multiple orifice epidural catheter was threaded 5 cm into the epidural space. Provided delivery had occurred 60 minutes after the intrathecal dose patients received EREM 8 mg (DepoDur™) through the epidural catheter. A 2 mL epidural saline flush was administered before and after drug.
Total
n=30 Participants
Total of all reporting groups
Age, Continuous
32 years
STANDARD_DEVIATION 5 • n=5 Participants
36 years
STANDARD_DEVIATION 3 • n=7 Participants
34 years
STANDARD_DEVIATION 4 • n=5 Participants
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
15 Participants
n=5 Participants
15 Participants
n=7 Participants
30 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Female
15 Participants
n=5 Participants
15 Participants
n=7 Participants
30 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
15 participants
n=5 Participants
15 participants
n=7 Participants
30 participants
n=5 Participants

PRIMARY outcome

Timeframe: a plasma sample at 0, 5, 10, 15, and 30 minutes, and 1, 4, 8, 12, 24, 36, 48, and 72 hours post-dose

The primary end point was to evaluate the pharmacokinetic profiles of EREM after either no epidural lidocaine or after an epidural lidocaine top-up for cesarean delivery.

Outcome measures

Outcome measures
Measure
Epidural DepoDur Following Epidural Lidocaine Administration
n=15 Participants
Epidural DepoDur was administered 60 minutes after an epidural Lidocaine top-up for surgical anesthetic in cesarean section patients.
Epidural DepoDur Following Spinal Anesthetic
n=14 Participants
Epidural DepoDur was administered 60 minutes after a standard spinal anesthetic. No prior epidural local anesthetic was used prior to DepoDur in this group assignment.
Maximum Plasma Concentration (Cmax) of Extended Release Epidural Morphine (EREM)
11.1 ng/mL
Standard Deviation 4.9
8.3 ng/mL
Standard Deviation 7.1

Adverse Events

Epidural DepoDur Following Epidural Lidocaine Administration

Serious events: 0 serious events
Other events: 11 other events
Deaths: 0 deaths

Epidural DepoDur Following Spinal Anesthetic

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
Epidural DepoDur Following Epidural Lidocaine Administration
n=15 participants at risk
Epidural DepoDur was administered 60 minutes after an epidural Lidocaine top-up for surgical anesthetic in cesarean section patients.
Epidural DepoDur Following Spinal Anesthetic
n=14 participants at risk
Epidural DepoDur was administered 60 minutes after a standard spinal anesthetic. No prior epidural local anesthetic was used prior to DepoDur in this group assignment.
Vascular disorders
hypotension ( 25% reduction in systolic blood pressure from baseline)
0.00%
0/15
Serious adverse events were not collected. None were anticipated.
7.1%
1/14 • Number of events 1
Serious adverse events were not collected. None were anticipated.
Respiratory, thoracic and mediastinal disorders
supplemental oxygen
40.0%
6/15 • Number of events 6
Serious adverse events were not collected. None were anticipated.
0.00%
0/14
Serious adverse events were not collected. None were anticipated.
Respiratory, thoracic and mediastinal disorders
oxygen desaturations (defined as oxygen saturations 93%)
33.3%
5/15 • Number of events 5
Serious adverse events were not collected. None were anticipated.
0.00%
0/14
Serious adverse events were not collected. None were anticipated.

Additional Information

Brendan Carvalho

Stanford University

Phone: 650-861-8607

Results disclosure agreements

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