Vienna, Austria

ESTRO 2023

Session Item

Sunday
May 14
11:40 - 12:40
Plenary Hall
Highlights of Proffered Papers - Best papers
Ludwig Van den Berghe, Belgium;
Marianne Aznar, United Kingdom
Proffered Papers
Interdisciplinary
12:30 - 12:40
RTT Best Paper: Randomized trial of person-centered versus standard RTT care for breast cancer patients NCT04507568
Michael Velec, Canada
OC-0512

Abstract

Randomized trial of person-centered versus standard RTT care for breast cancer patients NCT04507568
Authors:

Michael Velec1, Vivian Hoang1, Angela Cashell1, Kirsten Bryant1, Susan Chen1, Ryan Hyvarinen1, Suyeon Kim1, Grace Lee1, Susanne Lofgren1, Sajida Moledina1, Diana Powell1, Anita Vloet1, Olive Wong1, Amy Liu1, Anna Santiago1, Joseph Nachman1, Jennifer Croke1, Anthony Fyles1, Rachel Glicksman2, Ezra Hahn1, Kathy Han1, Joelle Helou1, Fei-Fei Liu1, Danielle Rodin1, C Anne Koch1

1Princess Margaret Cancer Centre, Radiation Medicine Program, Toronto, Canada; 2Princess Margaret Cancer Centre, Princess Margaret Cancer Centre, Toronto, Canada

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Purpose or Objective

Patients with breast cancer have unmet informational needs and anxiety during radiotherapy. To address this gap, a person-centered service was designed through Radiation Therapist (RTT)-led education and continuity-of-care over the whole radiotherapy pathway. The aim of this study was to determine if the person-centered model was more effective at reducing anxiety compared to standard care.

Material and Methods

Breast cancer patients requiring locoregional radiotherapy were prospectively accrued and randomized (1:1) to the intervention or standard care arm. The intervention was a 1-on-1 pre-CT education session led in-person by an RTT with expertise in breast radiotherapy who subsequently performed CT, planning, treatment delivery and support for the same patient. Standard care had no dedicated RTT-led education session and was usually delivered by many different RTTs over the care pathway. Patient-reported endpoints collected using validated questionnaires were changes relative to baseline in anxiety (HADS-A) as the primary endpoint, and self-efficacy (PROMIS), treatment concerns (CaTS) and health engagement (PHE) as secondary endpoints. Changes over time and between arms were evaluated using linear mixed-effects models. Post-treatment satisfaction items (EORTC PATSAT) were compared using unadjusted Wilcoxon rank sum tests. Optional semi-structured interviews were conducted post-treatment to thematically analyze patients’ experiences using qualitative methods.

Results

Patients (109 total) were randomized to the intervention (54) or standard care (55). Median age overall was 51 (28-81), and the majority were treated with 40 Gy/15 fractions (94%) using a 4-field technique (93%) in active breath-hold (57%). Anxiety was significantly reduced post-treatment (Figure) although the magnitude was similar between arms (p=0.682). Procedural concerns were significantly reduced prior to the 1st fraction in the intervention arm (p=0.001). Other secondary outcomes were similar between arms (Table). Satisfaction improved with the intervention for provision of information (p=0.042), identifying care team roles (p=0.042) and overall hospital care (p=0.024). Thematic interview analysis (20 intervention, 21 standard care) demonstrated that patients highly valued pre-treatment RTT-led education, and appreciated having one consistent RTT (or a small, consistent team of RTTs) particularly at the start of treatment course, when intimidated by the breath-hold technique or for especially vulnerable individuals.


Conclusion

Compared to standard care for breast radiotherapy, the person-centered RTT model significantly improved patients’ procedural concerns, overall satisfaction and experience with care. Future refinements in education content or RTT-patient communications should be considered in an effort to resolve patients’ psychological concerns and anxiety. In addition, having one or a few RTTs specialized in person-centered practice could facilitate an individualized approach to patients most in need.