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Ethanol Lock Therapy for Treatment and Secondary Prophylaxis of Central Line-Associated Bloodstream Infection

A Double-Blind, Randomized, Placebo-Controlled, Trial of Ethanol Lock Therapy for Treatment and Secondary Prophylaxis of Central Line Associated Bloodstream Infection (CLABSI) in Children and Adolescents

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01472965
Enrollment
95
Registered
2011-11-17
Start date
2011-12-29
Completion date
2016-11-11
Last updated
2017-11-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Central Line-Associated Bloodstream Infection

Keywords

central line, adolescents, children, bloodstream infection, antibiotic lock therapy, catheter lock therapy, ethanol lock therapy

Brief summary

Use of long-term central venous access devices (including tunneled lines and ports) can be associated with development of bloodstream infection caused by build-up of bacteria or fungus on the inside of the device, called central line associated bloodstream infection (CLABSI). This infection generally requires hospital admission and antibiotic therapy. This treatment usually helps eradicate the infection but sometimes it is not possible to clear or it comes back after treatment. Also, once someone has had one line infection the chance of getting another one is higher. This study will test whether treatment and secondary prophylaxis of CLABSI with ethanol lock therapy (ELT) can significantly reduce the risk of treatment failure (comprising failure to clear initial infection, relapse or reinfection) in children and adolescents treated for cancer or hematologic disorders or undergoing hematopoietic stem cell transplantation (HSCT). ELT involves injecting a solution of ethanol and water into the line or port, allowing it to dwell for 2 hours, and then withdrawing the solution.

Detailed description

Eligible patients with CLABSI will be enrolled within 96 hours of collection of positive blood culture and randomized to blinded treatment with 70% ethanol or heparin-saline placebo catheter lock therapy. After enrollment, all subjects will receive catheter lock therapy for a 5 day Treatment Phase, followed by a 24 week Prophylaxis Phase. Participants in the active treatment arm will receive 70% ethanol locks and those in the placebo arm will receive heparin-saline placebo locks in identical fashion. In addition to the study intervention, participants in both arms will receive standard systemic antibiotic therapy according to the preference of the ward clinician. The intervention will continue for 24 weeks unless off-therapy criteria are met or the catheter is removed. After the intervention is discontinued, participants will be monitored for 90 days, or 30 days after line removal, whichever is shorter. If the intervention is discontinued prior to 24 weeks due to adverse event or physician request, participants will be monitored for the remainder of the 24 week period. Primary Objective: * To compare the proportion of therapeutic failures in children and adolescents with CLABSI during treatment with standard care plus Ethanol Lock Therapy (ELT) versus standard care alone. Secondary Objectives: * To estimate and compare the cumulative incidence of CLABSI treatment failure, relapse or reinfection in children and adolescents receiving ELT plus standard care versus those receiving standard care alone. * To estimate the risk of central venous access device (CVAD) occlusion associated with the use of ELT plus standard care, compared with standard care alone, in children and adolescents. * To estimate the risk of adverse events possibly attributable to ELT associated with the use of ELT plus standard care, compared with standard care alone, in children and adolescents.

Interventions

DRUGethanol

70% ethanol catheter lock therapy

DRUGheparin-saline placebo

heparin-saline placebo catheter lock therapy

Sponsors

St. Jude Children's Research Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
6 Months to 25 Years
Healthy volunteers
No

Inclusion criteria

* Subjects ≥6 months to \< 25 years of age who are ≥5kg * New diagnosis (within 96 hours of collection of first positive blood culture) of CLABSI (participants with previous CLABSI will be eligible if not previously enrolled in the study) * Silicone CVAD in situ (ports, Hickman and Broviac lines will all be eligible) * Treating clinician plans to attempt salvage of CVAD * Participant is receiving treatment for cancer or any hematologic disorder or is receiving hematopoietic stem cell transplantation (HSCT) at a participating institution.

Exclusion criteria

* Allergy to ethanol or components of placebo lock * Concomitant use of metronidazole, disulfiram or trabectedin * Plan to remove CVAD within 6 days * Continuous use of all lumens of CVAD leading to anticipated inability to lock each lumen for at least 2 hours per day * Known CVAD obstruction * Subjects who are capable of becoming pregnant will require an negative pregnancy test before entry to study * Use of ELT in the preceding 2 weeks * Expected survival \<6 days * Proven alternative source of bloodstream infection (BSI), or clinical evidence of CVAD track or port-pocket infection * Multiple long-term CVADs in situ

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Therapeutic Failures (Early or Late Failure) in Children and Adolescents With CLABSI Receiving Standard Care Plus Ethanol Lock Therapy (ELT) vs. Standard Care AloneUp to 25 weeks after the start of treatment.Therapeutic failure was a pre-defined composite outcome comprising either 'early failure': central line removal, death, persistent positive blood cultures for \>72 hours, development of new CLABSI, or initiation of other ALT) during the 5 day treatment phase, or 'late failure': relapse (new CLABSI with an identical organism), or reinfection (new CLABSI with a different organism) during the 24 week prophylaxis phase. The percentage of evaluable participants with therapeutic failure is reported.

Secondary

MeasureTime frameDescription
Cumulative Incidence of Therapeutic Failure in Participants Receiving Standard Care Plus ELT vs. Standard Care AloneUp to 25 weeks after the start of treatmentTherapeutic failure was a pre-defined composite outcome comprising either 'early failure': central line removal, death, persistent positive blood cultures for \>72 hours, development of new CLABSI, or initiation of other ALT) during the 5 day treatment phase, or 'late failure': relapse (new CLABSI with an identical organism), or reinfection (new CLABSI with a different organism) during the 24 week prophylaxis phase. The cumulative incidence of therapeutic failure is reported.
Cumulative Incidence of Relapse in Participants Receiving Standard Care Plus ELT vs. Standard Care AloneUp to 25 weeks after the start of treatmentRelapse was defined as new CLABSI with an identical organism occurring during the 24 week prophylaxis phase. The percentage of evaluable participants with relapse is reported.
Cumulative Incidence of Reinfection in Participants Receiving Standard Care Plus ELT vs. Standard Care AloneUp to 25 weeks after the start of treatment.Reinfection was defined as new CLABSI with a different organism occurring during the 24 week prophylaxis phase. The percentage of evaluable participants with reinfection is reported.
Rate of Central Venous Access Device (CVAD) Occlusion Events in Participants Receiving Standard Care Plus ELT vs. Standard Care AloneUp to 26 weeks after the start of treatment.Occlusion was defined as central line occlusion or dysfunction requiring thrombolytic therapy. The percentage of evaluable participants requiring thrombolytic therapy for central line occlusion is reported.
Adverse Events in Participants Receiving Standard Care Plus ELT vs. Standard Care AloneUp to 37.5 weeks after the start of treatment.Adverse events attributable to lock therapy or related to the central venous access device (CVAD) were elicited from direct questioning at study visits and from the medical record. The percentage of evaluable participants with any potentially attributable adverse effect is reported.

Countries

Australia, United States

Participant flow

Recruitment details

Participants meeting eligibility criteria were enrolled between December 2011 and August 2016. They were randomized to receive catheter lock therapy using either 70% ethanol or heparin-saline (placebo). Randomization was blinded to the participant, their care provider, the investigator, and the outcomes assessor.

Participants by arm

ArmCount
Treatment (Ethanol)
Eligible patients with CLABSI will be enrolled within 96 hours of collection of positive blood culture and randomized to blinded treatment with 70% ethanol catheter lock therapy. ethanol: 70% ethanol catheter lock therapy
48
Control (Placebo)
Eligible patients with CLABSI will be enrolled within 96 hours of collection of positive blood culture and randomized to blinded treatment with heparin-saline placebo catheter lock therapy. heparin-saline placebo: heparin-saline placebo catheter lock therapy
46
Total94

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicTreatment (Ethanol)TotalControl (Placebo)
Age, Continuous8.8 years
STANDARD_DEVIATION 6.3
8.6 years
STANDARD_DEVIATION 6.4
8.3 years
STANDARD_DEVIATION 6.7
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants16 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
35 Participants71 Participants36 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
5 Participants7 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants3 Participants1 Participants
Race (NIH/OMB)
Black or African American
6 Participants18 Participants12 Participants
Race (NIH/OMB)
More than one race
4 Participants5 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants5 Participants2 Participants
Race (NIH/OMB)
White
31 Participants61 Participants30 Participants
Region of Enrollment
Australia
6 participants7 participants1 participants
Region of Enrollment
United States
42 participants87 participants45 participants
Sex: Female, Male
Female
14 Participants35 Participants21 Participants
Sex: Female, Male
Male
34 Participants59 Participants25 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
3 / 484 / 46
other
Total, other adverse events
4 / 480 / 46
serious
Total, serious adverse events
6 / 485 / 46

Outcome results

Primary

Percentage of Therapeutic Failures (Early or Late Failure) in Children and Adolescents With CLABSI Receiving Standard Care Plus Ethanol Lock Therapy (ELT) vs. Standard Care Alone

Therapeutic failure was a pre-defined composite outcome comprising either 'early failure': central line removal, death, persistent positive blood cultures for \>72 hours, development of new CLABSI, or initiation of other ALT) during the 5 day treatment phase, or 'late failure': relapse (new CLABSI with an identical organism), or reinfection (new CLABSI with a different organism) during the 24 week prophylaxis phase. The percentage of evaluable participants with therapeutic failure is reported.

Time frame: Up to 25 weeks after the start of treatment.

ArmMeasureValue (NUMBER)
Treatment (Ethanol)Percentage of Therapeutic Failures (Early or Late Failure) in Children and Adolescents With CLABSI Receiving Standard Care Plus Ethanol Lock Therapy (ELT) vs. Standard Care Alone43.8 percentage of participants
Control (Placebo)Percentage of Therapeutic Failures (Early or Late Failure) in Children and Adolescents With CLABSI Receiving Standard Care Plus Ethanol Lock Therapy (ELT) vs. Standard Care Alone43.5 percentage of participants
Secondary

Adverse Events in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone

Adverse events attributable to lock therapy or related to the central venous access device (CVAD) were elicited from direct questioning at study visits and from the medical record. The percentage of evaluable participants with any potentially attributable adverse effect is reported.

Time frame: Up to 37.5 weeks after the start of treatment.

ArmMeasureValue (NUMBER)
Treatment (Ethanol)Adverse Events in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone60.4 percentage of participants
Control (Placebo)Adverse Events in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone39.1 percentage of participants
Secondary

Cumulative Incidence of Reinfection in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone

Reinfection was defined as new CLABSI with a different organism occurring during the 24 week prophylaxis phase. The percentage of evaluable participants with reinfection is reported.

Time frame: Up to 25 weeks after the start of treatment.

ArmMeasureValue (NUMBER)
Treatment (Ethanol)Cumulative Incidence of Reinfection in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone27.3 percentage of participants
Control (Placebo)Cumulative Incidence of Reinfection in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone24.4 percentage of participants
Secondary

Cumulative Incidence of Relapse in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone

Relapse was defined as new CLABSI with an identical organism occurring during the 24 week prophylaxis phase. The percentage of evaluable participants with relapse is reported.

Time frame: Up to 25 weeks after the start of treatment

ArmMeasureValue (NUMBER)
Treatment (Ethanol)Cumulative Incidence of Relapse in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone6.3 percentage of participants
Control (Placebo)Cumulative Incidence of Relapse in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone8.7 percentage of participants
Secondary

Cumulative Incidence of Therapeutic Failure in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone

Therapeutic failure was a pre-defined composite outcome comprising either 'early failure': central line removal, death, persistent positive blood cultures for \>72 hours, development of new CLABSI, or initiation of other ALT) during the 5 day treatment phase, or 'late failure': relapse (new CLABSI with an identical organism), or reinfection (new CLABSI with a different organism) during the 24 week prophylaxis phase. The cumulative incidence of therapeutic failure is reported.

Time frame: Up to 25 weeks after the start of treatment

ArmMeasureValue (NUMBER)
Treatment (Ethanol)Cumulative Incidence of Therapeutic Failure in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone44.0 percentage of participants
Control (Placebo)Cumulative Incidence of Therapeutic Failure in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone43.9 percentage of participants
Secondary

Rate of Central Venous Access Device (CVAD) Occlusion Events in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone

Occlusion was defined as central line occlusion or dysfunction requiring thrombolytic therapy. The percentage of evaluable participants requiring thrombolytic therapy for central line occlusion is reported.

Time frame: Up to 26 weeks after the start of treatment.

ArmMeasureValue (NUMBER)
Treatment (Ethanol)Rate of Central Venous Access Device (CVAD) Occlusion Events in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone58.3 percentage of participants
Control (Placebo)Rate of Central Venous Access Device (CVAD) Occlusion Events in Participants Receiving Standard Care Plus ELT vs. Standard Care Alone32.6 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026