Literature DB >> 28858535

Implementation of Surgeon-Initiated Gene Expression Profile Testing (Onco type DX) Among Patients With Early-Stage Breast Cancer to Reduce Delays in Chemotherapy Initiation.

Katya Losk1, Rachel A Freedman1, Nancy U Lin1, Mehra Golshan1, Stephen M Pochebit1, Susan C Lester1, Kelsey Natsuhara1, Kristen Camuso1, Tari A King1, Craig A Bunnell1.   

Abstract

PURPOSE: Delays to adjuvant chemotherapy initiation in breast cancer may adversely affect clinical outcomes and patient satisfaction. We previously identified an association between genomic testing (Onco type DX) and delayed chemotherapy initiation. We sought to reduce the interval between surgery and adjuvant chemotherapy initiation by developing standardized criteria and workflows for Onco type DX testing.
METHODS: Criteria for surgeon-initiated reflex Onco type DX testing, workflows for communication between surgeons and medical oncologists, and a streamlined process for receiving and processing Onco type DX requests in pathology were established by multidisciplinary consensus. Criteria for surgeon-initiated testing included patients ≤ 65 years old with T1cN0 (grade 2 or 3), T2N0 (grade 1 or 2), or T1/T2N1 (grade 1 or 2) breast cancer on final surgical pathology. Medical oncologists could elect to initiate Onco type testing for cases falling outside the criteria. We then examined 720 consecutive patients with breast cancer who underwent Onco type DX testing postoperatively between January 1, 2014 and November 28, 2016 and measured intervals between date of surgery, Onco type DX order date, result received date, and chemotherapy initiation date (if applicable) before and after intervention implementation.
RESULTS: The introduction of standardized criteria and workflows reduced time between surgery and Onco type DX ordering, and time from surgery to receipt of result, by 7.3 days ( P < .001) and 6.3 days ( P < .001), respectively. The mean number of days between surgery and initiation of chemotherapy was also reduced by 6.4 days ( P = .004).
CONCLUSION: Developing consensus on Onco type DX testing criteria and implementing streamlined workflows has led to clinically significant reductions in wait times to chemotherapy decision making and initiation.

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Year:  2017        PMID: 28858535     DOI: 10.1200/JOP.2017.023788

Source DB:  PubMed          Journal:  J Oncol Pract        ISSN: 1554-7477            Impact factor:   3.840


  5 in total

1.  Impact of Genomic Assay Testing and Clinical Factors on Chemotherapy Use After Implementation of Standardized Testing Criteria.

Authors:  Kelsey H Natsuhara; Katya Losk; Tari A King; Nancy U Lin; Kristen Camuso; Mehra Golshan; Stephen Pochebit; Jane E Brock; Craig A Bunnell; Rachel A Freedman
Journal:  Oncologist       Date:  2018-08-03

2.  Oncotype DX testing in node-positive breast cancer strongly impacts chemotherapy use at a comprehensive cancer center.

Authors:  Katya Losk; Rachel A Freedman; Alison Laws; Olga Kantor; Elizabeth A Mittendorf; Zhenying Tan-Wasielewski; Lorenzo Trippa; Nancy U Lin; Eric P Winer; Tari A King
Journal:  Breast Cancer Res Treat       Date:  2020-09-16       Impact factor: 4.872

3.  Surgeon and medical oncologist peer network effects on the uptake of the 21-gene breast cancer recurrence score assay.

Authors:  Ronnie Zipkin; Andrew Schaefer; Mary Chamberlin; Tracy Onega; Alistair J O'Malley; Erika L Moen
Journal:  Cancer Med       Date:  2021-01-16       Impact factor: 4.452

4.  Primary Care Continuity and Wait Times to Receiving Breast Cancer Chemotherapy: A Population-Based Retrospective Cohort Study Using CanIMPACT Data.

Authors:  Rachel Lin Walsh; Aisha Lofters; Rahim Moineddin; Monika Krzyzanowska; Eva Grunfeld
Journal:  Curr Oncol       Date:  2021-11-17       Impact factor: 3.677

Review 5.  Defining the Criteria for Reflex Testing for BRAF Mutations in Cutaneous Melanoma Patients.

Authors:  Sarah Zhou; Daniel Sikorski; Honghao Xu; Andrei Zubarev; May Chergui; François Lagacé; Wilson H Miller; Margaret Redpath; Stephanie Ghazal; Marcus O Butler; Teresa M Petrella; Joël Claveau; Carolyn Nessim; Thomas G Salopek; Robert Gniadecki; Ivan V Litvinov
Journal:  Cancers (Basel)       Date:  2021-05-10       Impact factor: 6.639

  5 in total

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