Trial Outcomes & Findings for Measuring the Amount of Methadone or Morphine in the Blood of Neonates, Infants & Children After Cardiac Surgery. (NCT NCT01094522)

NCT ID: NCT01094522

Last Updated: 2017-09-18

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

47 participants

Primary outcome timeframe

0, 15, 30 minutes, 1, 2, 4, 6 hrs, every 6 hrs up to 24 hrs

Results posted on

2017-09-18

Participant Flow

Total 47 subjects were enrolled. 7 were withdrawn prior to randomization. 40 were randomized.

Participant milestones

Participant milestones
Measure
Methadone
One half the Study patients will be randomized to receive a loading dose of IV methadone, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Methadone: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of methadone may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Overall Study
STARTED
20
20
Overall Study
COMPLETED
20
20
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Measuring the Amount of Methadone or Morphine in the Blood of Neonates, Infants & Children After Cardiac Surgery.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Methadone
n=20 Participants
One half the Study patients will be randomized to receive a loading dose of IV methadone, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Methadone: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of methadone may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
n=20 Participants
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Total
n=40 Participants
Total of all reporting groups
Age, Continuous
1.00 years
n=5 Participants
1.37 years
n=7 Participants
1.19 years
n=5 Participants
Sex: Female, Male
Female
14 Participants
n=5 Participants
10 Participants
n=7 Participants
24 Participants
n=5 Participants
Sex: Female, Male
Male
6 Participants
n=5 Participants
10 Participants
n=7 Participants
16 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 0, 15, 30 minutes, 1, 2, 4, 6 hrs, every 6 hrs up to 24 hrs

Outcome measures

Outcome measures
Measure
Morphine
n=20 Participants
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Maximum Concentration of Morphine Including Its Metabolites (Morphine-3-glucuronide and Morphine-6-glucuronide)
Morphine
27.55 ng/mL
Interval 0.317 to 348.0
Maximum Concentration of Morphine Including Its Metabolites (Morphine-3-glucuronide and Morphine-6-glucuronide)
M3G
225 ng/mL
Interval 0.39 to 2630.0
Maximum Concentration of Morphine Including Its Metabolites (Morphine-3-glucuronide and Morphine-6-glucuronide)
M6G
22.95 ng/mL
Interval 0.861 to 383.0

PRIMARY outcome

Timeframe: 0, 15, 30 minutes, 1, 2, 4, 6 hrs, every 6 hrs up to 24 hrs

Outcome measures

Outcome measures
Measure
Morphine
n=20 Participants
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Maximum Concentration of Methadone Including Its Metabolites (EDDP and EMDP)
Methadone
52.35 ng/mL
Interval 0.702 to 829.0
Maximum Concentration of Methadone Including Its Metabolites (EDDP and EMDP)
EDDP
3.42 ng/mL
Interval 0.257 to 108.0
Maximum Concentration of Methadone Including Its Metabolites (EDDP and EMDP)
EMDP
0.194 ng/mL
Interval 0.101 to 0.537

SECONDARY outcome

Timeframe: 24 hours

Population: Hourly FLACC score was calculated for 16 subjects in Methadone group and 19 subjects in morphine group

Average of hourly FLACC score for each subject over 24 hours was calculated, followed by median and full range for total subjects in each arm. FLACC (Face, Leg, Activity, Cry, Consolability) score ranges from 0-10 with 0 representing no pain

Outcome measures

Outcome measures
Measure
Morphine
n=16 Participants
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
n=19 Participants
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
•Pain Scores (FLACC) During the 24 Hours Study Period
1.375 units on a scale
Interval 0.0 to 3.375
1.917 units on a scale
Interval 0.0 to 4.792

SECONDARY outcome

Timeframe: 24 hours

Outcome measures

Outcome measures
Measure
Morphine
n=20 Participants
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
n=20 Participants
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
•Amount of Study Drug Administered During the 24-hour Dosing Period
8.56 mg
Interval 1.0 to 29.4
13.77 mg
Interval 1.7 to 88.7

Adverse Events

Methadone

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

Morphine

Serious events: 3 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Methadone
n=20 participants at risk
One half the Study patients will be randomized to receive a loading dose of IV methadone, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Methadone: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of methadone may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
n=20 participants at risk
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Infections and infestations
Culture negative sepsis
5.0%
1/20 • Number of events 1
0.00%
0/20
Surgical and medical procedures
Left vocal cord paralysis
5.0%
1/20 • Number of events 1
0.00%
0/20
Respiratory, thoracic and mediastinal disorders
Left pleural effusion
0.00%
0/20
5.0%
1/20 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Acute respiratory failure
0.00%
0/20
5.0%
1/20 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Pulmonary edema requiring re-intubation
5.0%
1/20 • Number of events 1
0.00%
0/20
Respiratory, thoracic and mediastinal disorders
Respiratory failure requiring re-intubation
5.0%
1/20 • Number of events 1
0.00%
0/20
Renal and urinary disorders
UTI
5.0%
1/20 • Number of events 1
0.00%
0/20
Gastrointestinal disorders
Duodenal atresia requiring surgery
0.00%
0/20
5.0%
1/20 • Number of events 1
General disorders
Apnea requiring re-intubation
5.0%
1/20 • Number of events 1
0.00%
0/20

Other adverse events

Other adverse events
Measure
Methadone
n=20 participants at risk
One half the Study patients will be randomized to receive a loading dose of IV methadone, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Methadone: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of methadone may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Morphine
n=20 participants at risk
One half the Study patients will be randomized to receive a loading dose of IV morphine, followed by IV doses (given by the ICU nurse), on a PRN basis, for pain control for up to 24 hours during their postoperative course while they are intubated. Morphine: 0.2 mg/kg (IV) for the Initial Loading Dose; followed by PRN ("as needed") doses (given by the ICU Nurses) starting at 0.035 mg/kg (IV) every 30 minutes, for postoperative pain. The PRN dose of morphine may be increased by the ICU doctors until the dose is adequate to relieve the patient's pain.
Investigations
Self-extubation
0.00%
0/20
10.0%
2/20 • Number of events 2
Infections and infestations
Culture negative sepsis
5.0%
1/20 • Number of events 1
0.00%
0/20
Respiratory, thoracic and mediastinal disorders
Acute respiratory failure
0.00%
0/20
5.0%
1/20 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Pulmonary edema requiring re-intubation
5.0%
1/20 • Number of events 1
0.00%
0/20
Respiratory, thoracic and mediastinal disorders
Asthma exacerbation
5.0%
1/20 • Number of events 1
0.00%
0/20
Renal and urinary disorders
UTI
5.0%
1/20 • Number of events 1
0.00%
0/20
Gastrointestinal disorders
Duodenal atresia requiring surgery
0.00%
0/20
5.0%
1/20 • Number of events 1
General disorders
Apnea requiring re-intubation
5.0%
1/20 • Number of events 1
0.00%
0/20

Additional Information

Dr. Gregory Hammer

Stanford University School of Medicine

Phone: 6507367359

Results disclosure agreements

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