Trial Outcomes & Findings for Peritoneal Dialysis vs Furosemide for Acute Kidney Injury After Cardiopulmonary Bypass (NCT NCT01709227)

NCT ID: NCT01709227

Last Updated: 2017-06-09

Results Overview

Difference of inputs and outputs, including urine output and PD drainage.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

73 participants

Primary outcome timeframe

Postop day 1

Results posted on

2017-06-09

Participant Flow

Participant milestones

Participant milestones
Measure
Furosemide
Patients randomized to the furosemide arm will be given 1 mg/kg intravenously every 6 hours for 2 doses and then as directed by CICU attending to augment urine output. Patients within this arm who have urine output \<1 ml/kg/hr over 16 hours after the first dose of Lasix will be considered poor responders. These patients may be started on PD if clinically indicated. Those who show good response (urine output \>1 ml/kg/hr over subsequent 16 hours) will continue furosemide as needed to augment urine output. If they subsequently develop oliguria or fluid overload unresponsive to diuretic therapy, these patients may later be started on PD at discretion of CICU attending with consultation of nephrology service. Furosemide: Patients randomized to the furosemide arm are given 1 mg/kg intravenously every 6 hours for 2 doses and then as directed by CICU attending to augment urine output. Patients within this arm who have urine output \<1 ml/kg/hr over 16 hours after the first dose of Lasix
Peritoneal Dialysis
Patients within the PD arm will begin PD with a standardized dialysis plan of 10ml/kg of 1.5% Dianeal™ with 1 hours cycles (5 minute fill, 45 minute dwell and 10 minute drain). Further PD management will be directed by CICU attending and Nephrology service Peritoneal Dialysis: Patients within the PD arm will begin PD with a standardized dialysis plan of 10ml/kg of 1.5% Dianeal™ with 1 hours cycles (5 minute fill, 45 minute dwell and 10 minute drain). Further PD management and discontinuation will be directed by CICU attending and Nephrology service. One potential outcome during use of a peritoneal dialysis catheter is the development of a Pleural Peritoneal communication. In this event, dialysis fluid is instilled in the peritoneum and then leaks into the pleural space through a defect in the diaphragm. This fluid is then drained out of a surgical chest tube. This impairs the ability to perform peritoneal dialysis and thus is a reason to not complete the randomized arm.
Overall Study
STARTED
32
41
Overall Study
COMPLETED
31
32
Overall Study
NOT COMPLETED
1
9

Reasons for withdrawal

Reasons for withdrawal
Measure
Furosemide
Patients randomized to the furosemide arm will be given 1 mg/kg intravenously every 6 hours for 2 doses and then as directed by CICU attending to augment urine output. Patients within this arm who have urine output \<1 ml/kg/hr over 16 hours after the first dose of Lasix will be considered poor responders. These patients may be started on PD if clinically indicated. Those who show good response (urine output \>1 ml/kg/hr over subsequent 16 hours) will continue furosemide as needed to augment urine output. If they subsequently develop oliguria or fluid overload unresponsive to diuretic therapy, these patients may later be started on PD at discretion of CICU attending with consultation of nephrology service. Furosemide: Patients randomized to the furosemide arm are given 1 mg/kg intravenously every 6 hours for 2 doses and then as directed by CICU attending to augment urine output. Patients within this arm who have urine output \<1 ml/kg/hr over 16 hours after the first dose of Lasix
Peritoneal Dialysis
Patients within the PD arm will begin PD with a standardized dialysis plan of 10ml/kg of 1.5% Dianeal™ with 1 hours cycles (5 minute fill, 45 minute dwell and 10 minute drain). Further PD management will be directed by CICU attending and Nephrology service Peritoneal Dialysis: Patients within the PD arm will begin PD with a standardized dialysis plan of 10ml/kg of 1.5% Dianeal™ with 1 hours cycles (5 minute fill, 45 minute dwell and 10 minute drain). Further PD management and discontinuation will be directed by CICU attending and Nephrology service. One potential outcome during use of a peritoneal dialysis catheter is the development of a Pleural Peritoneal communication. In this event, dialysis fluid is instilled in the peritoneum and then leaks into the pleural space through a defect in the diaphragm. This fluid is then drained out of a surgical chest tube. This impairs the ability to perform peritoneal dialysis and thus is a reason to not complete the randomized arm.
Overall Study
Physician Decision
1
0
Overall Study
Pleural Peritoneal communication
0
9

Baseline Characteristics

Peritoneal Dialysis vs Furosemide for Acute Kidney Injury After Cardiopulmonary Bypass

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Furosemide
n=32 Participants
Patients randomized to receive furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to receive peritoneal dialysis
Total
n=73 Participants
Total of all reporting groups
Age, Continuous
9 days
n=99 Participants
8 days
n=107 Participants
8 days
n=206 Participants
Sex: Female, Male
Female
11 Participants
n=99 Participants
15 Participants
n=107 Participants
26 Participants
n=206 Participants
Sex: Female, Male
Male
21 Participants
n=99 Participants
26 Participants
n=107 Participants
47 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
31 Participants
n=99 Participants
40 Participants
n=107 Participants
71 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
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 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
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Race (NIH/OMB)
White
29 Participants
n=99 Participants
37 Participants
n=107 Participants
66 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
2 Participants
n=107 Participants
2 Participants
n=206 Participants
Region of Enrollment
United States
32 participants
n=99 Participants
41 participants
n=107 Participants
73 participants
n=206 Participants
Weight (kg)
3.4 kg
n=99 Participants
3.4 kg
n=107 Participants
3.4 kg
n=206 Participants
Length (cm)
50 cm
n=99 Participants
50 cm
n=107 Participants
50 cm
n=206 Participants
Baseline Creatinine (mg/dL)
0.4 mg/dl
n=99 Participants
0.4 mg/dl
n=107 Participants
0.4 mg/dl
n=206 Participants

PRIMARY outcome

Timeframe: Postop day 1

Difference of inputs and outputs, including urine output and PD drainage.

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
Number of Participants With Negative Fluid Balance on Postop Day 1
21 Participants
29 Participants

SECONDARY outcome

Timeframe: Duration of postoperative intubation (average time approximately- 1 week)

Duration of initial course of postoperative mechanical ventilation

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
Respiratory Support Administered
4 days
Interval 2.0 to 6.0
3 days
Interval 2.0 to 4.0

SECONDARY outcome

Timeframe: Pre-op, and postop (2hr, 6hr, 12hr, 24hr, 48hr)

Population: Data were collected but not analyzed. Due to a high incidence of volatile and un-reportable NGAL levels, concerns were raised about the storage or processing of samples affecting data validity. Given the overwhelming concern of erroneous data, analysis was not performed as planned.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Average 2 weeks

Total days of initial postoperative stay in cardiac ICU

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
Duration of Cardiac ICU Stay
9 days
Interval 5.0 to 15.0
7 days
Interval 6.0 to 12.0

SECONDARY outcome

Timeframe: Average 4 weeks

Total days of initial postoperative stay in hospital

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
Duration of Hospital Stay
15 days
Interval 10.0 to 28.0
14 days
Interval 9.0 to 22.0

SECONDARY outcome

Timeframe: duration of hospitalization (an average of 2 weeks)

In-hospital mortality

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
All Cause Mortality
3 Participants
1 Participants

SECONDARY outcome

Timeframe: Postop morning 1-5

Total sum of renal and electrolyte abnormalities over the first 5 postoperative days as defined in the protocol

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
Renal/Electrolyte Abnormalities
6 abnormalities
Interval 4.0 to 7.0
4 abnormalities
Interval 3.0 to 5.0

SECONDARY outcome

Timeframe: Postop day 0-5

Total doses of potassium chloride or arginine chloride given during the first five postoperative days.

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
Doses of Potassium Chloride or Arginine Chloride Required
2 doses given
Interval 1.0 to 5.0
1 doses given
Interval 0.0 to 3.0

SECONDARY outcome

Timeframe: At 24hours and 48 hours postoperative

BNP measured at 24 and 48 hours postoperatively

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
B-Natriuretic Peptide
24 hours
1334 pg/ml
Interval 901.0 to 2764.0
1168 pg/ml
Interval 555.0 to 2439.0
B-Natriuretic Peptide
48 hours
1110 pg/ml
Interval 611.0 to 2221.0
663 pg/ml
Interval 486.0 to 1593.0

SECONDARY outcome

Timeframe: at 24 and 48 hours postoperative

Product of Mean airway pressure delivered by mechanical ventilation and FiO2 of administered oxygen

Outcome measures

Outcome measures
Measure
Furosemide
n=32 Participants
Patients randomized to furosemide
Peritoneal Dialysis
n=41 Participants
Patients randomized to peritoneal dialysis
Modified Oxygenation Index
24 Hours
4 Units
Interval 3.2 to 5.2
4 Units
Interval 0.03 to 5.4
Modified Oxygenation Index
48 Hours
3.8 Units
Interval 2.4 to 5.4
2.8 Units
Interval 2.2 to 4.6

Adverse Events

Furosemide

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

Peritoneal Dialysis

Serious events: 0 serious events
Other events: 2 other events
Deaths: 1 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Furosemide
n=32 participants at risk
Patients randomized to furosemide
Peritoneal Dialysis
n=41 participants at risk
Patients randomized to peritoneal dialysis
Blood and lymphatic system disorders
Bleeding Event
0.00%
0/32
2.4%
1/41 • Number of events 1
Skin and subcutaneous tissue disorders
Hydrocele
0.00%
0/32
2.4%
1/41 • Number of events 1

Additional Information

David Kwiatkowski

Stanford University

Phone: 650-721-3290

Results disclosure agreements

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