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A randomized trial comparing vascular access strategies for patients receiving chemotherapy with trastuzumab for early-stage breast cancer

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Abstract

Purpose

Trastuzumab-based chemotherapy is usually administered through either a peripherally inserted central catheter (PICC) or a totally implanted vascular access device (PORT). As the most effective type of access is unknown, a feasibility trial, prior to conducting a large pragmatic trial, was undertaken.

Methods

The trial methodology utilized the integrated consent model incorporating oral consent. Patients receiving trastuzumab-based neo/adjuvant chemotherapy for early-stage breast cancer were randomized to a PICC or PORT insertion. Feasibility was reflected through a combination of endpoints; however, the a priori definition of feasibility was > 25% of patients approached agreed to randomization and > 25% of physicians approached patients. Secondary outcomes included rates of line-associated complications such as thrombotic events requiring anticoagulation, line infections or phlebitis.

Results

During the study period, 4/15 (26.7%) medical oncologists approached patients about study participation. Of 59 patients approached, 56 (94.9%) agreed to randomization, 29 (51.8%) were randomized to PICC and 27 (48.2%) to PORT access. Overall, 17.2% (5/29) and 14.8% (4/27) of patients had at least one line-associated complication in the PICC and PORT arms respectively. The study was terminated early due to slow accrual.

Conclusion

The study met its feasibility endpoints with respect to patient and physician engagement. However, the slow rate of accrual (56 patients in 2 years) means that conducting a large pragmatic trial would require additional strategies to make such a study possible.

Trial registration

ClinicalTrials.gov Identifier: NCT02632435

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Funding

Funding of this study was through the Rethinking Clinical Trials (REaCT program).

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Authors and Affiliations

Authors

Corresponding author

Correspondence to Mark Clemons.

Ethics declarations

We declare that this study complies with ethical standards in Canada. The study was approved by the provincial Research Ethics Board (Ontario Research Ethics Board, OCREB) and local REBs.

Conflict of interest

Dr. Awan reports participating in the Novartis Canada Advisory Board on the use of Ribociclib. Dr. Hutton reports personal fees from Cornerstone Research, outside the submitted work. The remaining authors declare that they have no conflicts of interest (Clemons, Stober, Kehoe, Bedard, MacDonald, Brunet, Saunders, Vandermeer, Mazzarello, Basulaiman, Robinson, Mallick, and Fergusson).

Research involving human participants

The study was approved by the appropriate institutional research ethics committees and was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Clemons, M., Stober, C., Kehoe, A. et al. A randomized trial comparing vascular access strategies for patients receiving chemotherapy with trastuzumab for early-stage breast cancer. Support Care Cancer 28, 4891–4899 (2020). https://doi.org/10.1007/s00520-020-05326-y

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  • DOI: https://doi.org/10.1007/s00520-020-05326-y

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