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WithdrawnNCT03348826Updated Sep 16, 2020

Study of Sodium Bicarbonate in Restoring Blocked Catheters

A Phase 2 interventional study of Sodium Bicarbonate 8.4% Solution for Injection and Alteplase Injectable Solution in Cancer and Central Venous Catheterization, sponsored by University Health Network, Toronto. Withdrawn at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-09-16.

Sponsored by University Health Network, Toronto · Phase 2, Interventional, and Treatment

Why this study was withdrawn
No participants were enrolled
Phase
Phase 2
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a study looking at the use of sodium bicarbonate to restore the flow of blocked central line devices in patients with blood cancers.

Central line devices uses thin tubes that are placed into a vein in the body to give medicines, fluids, nutrients, blood products, etc.

Sometimes, the lines become blocked. The standard procedure to get the line working again is to use alteplase, a protein that dissolves blood clots. While blood clotting is one cause of a blocked line, other reasons included the formation of calcium deposits. Sodium bicarbonate is routinely used in the treatment of patients receiving chemotherapy. Sodium bicarbonate is a liquid drug which is capable of dissolving protein and calcium deposits.

This study will compare whether sodium bicarbonate works just as well as alteplase to recover the function of a blocked line.

02

Conditions studied

  • Cancer
  • Central Venous Catheterization
03

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Hematology patients with indwelling CVC/PICC line.
  • Patients continuing to receive chemotherapy treatment for consolidation, intensification and maintenance regimens in hematological malignancies such as in acute leukemia, lymphoma, myelodysplastic syndrome, supportive care measures using blood products, ongoing anti-infective treatments, and nutrition.
  • Patients whose CVC/PICC line becomes obstructed during routine care are being identified and presented to attending physician and pharmacist.
  • Mechanical obstruction having been ruled out by visual inspection and manipulation of the patient's posture or extremities or both.

Exclusion criteria

Exclusion Criteria:

  • Patients with hemodialysis line occlusions
  • Anyone with documentation of prior history of alteplase allergy or hypersensitivity reactions
04

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Alteplase then Sodium Bicarbonate

    Alteplase will first be administered to restore flow. If flow is not restored, then sodium bicarbonate will be administered.

    Drug: Sodium Bicarbonate 8.4% Solution for Injection · Drug: Alteplase Injectable Solution

  • Experimental
    Sodium Bicarbonate then Alteplase

    Sodium bicarbonate will first be administered to restore flow. If flow is not restored, then alteplase will be administered.

    Drug: Sodium Bicarbonate 8.4% Solution for Injection · Drug: Alteplase Injectable Solution

Interventions

  • DrugSodium Bicarbonate 8.4% Solution for Injection

    3 mL injection into line with up to 2 injections administered

  • DrugAlteplase Injectable Solution

    2 mL injection into line with up to 2 injections administered

05

What researchers measure

Primary outcomes

  1. Successful clearance rate of sodium bicarbonate

    Time frame: 3 hours

  2. Successful clearance rate of alteplase

    Time frame: 3 hours

06

Study locations

1 site
  • Princess Margaret Cancer Centre
    Toronto, Ontario M5G 2M9, Canada
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT03348826
Lead sponsor
University Health Network, Toronto
Responsible party
Sponsor
First posted
Nov 21, 2017
Start date
Jun 1, 2020 (estimated)
Primary completion
Sep 1, 2020 (estimated)
Completion
Sep 2, 2021 (estimated)
Last update
Sep 16, 2020

Study contacts

Mark Minden, M.D.
principal investigator · Princess Margaret Cancer Centre

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is withdrawn, as verified in Sep 2020. You cannot join it, but the record below documents what was studied.

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