Winson Y. Cheung

Dr. Winson Y. Cheung


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 October 2022 in Current Oncology
Verified
Journal Article
Open access
PDF file
NANimira Alimohamed
Nimira Alimohamed
SGSimrun Grewal
Simrun Grewal
HWHeidi S. Wirtz
Heidi S. Wirtz
ZHZsolt Hepp
Zsolt Hepp
SSStephanie Sauvageau
Stephanie Sauvageau
TJTamer N. Jarada
Tamer N. Jarada
Despite a high disease burden, real-world data on treatment patterns in patients with unresectable locally advanced or metastatic urothelial carcinoma (la/mUC) in Canada are limited. This retrospective, longitudinal cohort study describes treatment patterns and survival in a population of patients with de novo unresectable la/mUC from Alberta, Canada, diagnosed between 1 January 2015 and 31 December 2019, followed until mid-2020. The outcomes of interest were systemic therapy treatment patterns and overall survival (OS). Of 206 patients, most (65.0%, n = 134) did not receive any systemic therapies. Of 72 patients (35.0%) who received first-line systemic therapy, the median duration of treatment was 2.8 months (IQR 3.3). Thirty-five patients (48.6% of those who received first-line therapy) received subsequent second-line therapy, for a median of 3.0 months (IQR 3.3). In all patients (n = 206), the median OS from diagnosis was 5.3 months (95% CI, 4.5–7.0). In patients who received treatment, the median OS from the initiation of first-line and second-line systemic therapy was 9.1 (6.4–11.6) and 4.6 months (3.9–19.2), respectively. The majority of patients did not receive first-line systemic therapy, and, in those who did, survival outcomes were poor. This study highlights the significant unmet need for safe and efficacious therapies for patients with la/mUC in Canada.

14 February 2023 in Current Oncology
Verified
Journal Article
Open access
PDF file
DMDiana Martins
Diana Martins
DODylan E. O'Sullivan
Dylan E. O'Sullivan
DBDevon J. Boyne
Devon J. Boyne
WCWinson Y. Cheung
Winson Y. Cheung
OAOdette Allonby
Odette Allonby
JMJacob D. McGee
Jacob D. McGee
Endometrial cancer (EC) incidence has increased in recent decades. However, population-based outcomes data are limited. In this retrospective cohort study, we examined characteristics, treatment patterns, and clinical outcomes, including time to next treatment (TNNT) and overall survival (OS), among advanced/recurrent (A/R) EC patients between 2010 and 2018 in Alberta, Canada. Kaplan–Meier statistics evaluated TTNT and OS, stratified by patient (A/R) and treatment. A total of 1053 patients were included: 620 (58.9%) advanced and 433 (41.1%) recurrent. A total of 713 (67.7%) patients received first-line therapy: 466 (75.2%) advanced and 247 (57.0%) recurrent. Platinum-based chemotherapy (PBCT) was the most common first-line regimen (overall: 78.6%; advanced: 96.1%; recurrent: 45.3%). The median TTNT and OS from first-line therapy were 19.9 months (95% confidence interval [CI]: 17.5–23.5) and 35.9 months (95% CI: 31.5–53.5), respectively. Following first-line PBCT, the median OS from second-line chemotherapy (N = 187) was 10.4 months (95% CI: 8.9–13.3) and higher for those rechallenged with PBCT (N = 72; 38.5%) versus no rechallenge (N = 115; 61.5%) (13.3 months [95% CI: 11.2–20.9] vs. 6.4 months [95% CI: 4.6–10.4; p < 0.001]). The findings highlight poor outcomes in A/R EC, particularly following first-line therapy, and that additional tolerable therapeutic options are needed to improve patient outcomes.

14 July 2025 in Current Oncology
Verified
Journal Article
Open access
PDF file
ACAngela Chan
Angela Chan
NNNancy Nixon
Nancy Nixon
Muna Al-KhaifiMuna Al-Khaifi
Muna Al-Khaifi
ABAlain Bestavros
Alain Bestavros
CBChristine Blyth
Christine Blyth
SEScott Edwards
Scott Edwards
The adjuvant treatment landscape for hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2–) early breast cancer (EBC) is rapidly evolving, with a diverse range of therapeutic options—including endocrine therapies, bisphosphonates, ovarian function suppression, olaparib, CDK4/6 inhibitors, and emerging agents such as immunotherapy. While these advances have markedly improved patient outcomes, they also introduce challenges related to implementation, monitoring, and resource allocation. Notably, therapies like CDK4/6 inhibitors require particularly close monitoring, creating logistical and capacity challenges for medical oncologists, whose workloads are already stretched due to rising cancer incidence and treatment complexities. These challenges underscore the need for innovative care delivery solutions to ensure patients with EBC continue to receive optimal care. This paper offers a comprehensive guide—a playbook—of multidisciplinary-team-based care models designed to optimize adjuvant treatment delivery in EBC. Drawing on real-world evidence and successful applications across Canadian centers, we explore models led by nurses, nurse practitioners (NPs), general practitioners in oncology (GPO), and pharmacists. Each model leverages the unique expertise of its team to manage treatment toxicities, facilitate adherence, and enhance patient education, thereby promoting effective and sustainable care delivery. Importantly, these models are not intended to compete with one another, but rather to serve as a flexible recipe book from which breast cancer care teams can draw strategies tailored to their local resources and patient needs. By detailing implementation strategies, benefits, and challenges—in many instances supported by quantitative metrics and economic evaluations—this work aims to inspire care teams nationwide to optimize the adjuvant management of patients with HR+, HER2– EBC.

30 January 2026 in Current Oncology
Verified
Journal Article
Open access
PDF file
DRDaniel Rayson
Daniel Rayson
JBJonathan Bertin
Jonathan Bertin
MLMaxim Lemelin
Maxim Lemelin
MTMadeline Tong
Madeline Tong
NNNA Ng
NA Ng
SLSasha Lupichuk
Sasha Lupichuk
Canadian real-world data (RWD) regarding palbociclib as a first-line therapy for patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2−) metastatic breast cancer (MBC) is limited. The PALbociclib CANadian (PALCAN) study examined palbociclib utilization patterns as first-line treatment for HR+/HER2− MBC using Alberta health administrative data. The final PALCAN cohort included 472 female patients with a median age of 64 years and a median follow-up time of 22.8 months (IQR: 0.7–88.2). The median (95% CI) duration of treatment was 13.8 (12.7–15.1) months in the overall cohort (IQR: 5.6, 24.8 months), and the probability of treatment discontinuation within the first year was 45%. Aromatase inhibitors (AIs) and fulvestrant were the accompanying endocrine therapies (ETs) in 83% (N = 393) and 14% (N = 64) (15 with unknown accompanying therapy) of patients, respectively. The median duration of treatment for patients receiving an AI as an accompanying therapy was 15.1 (13.6–17.4) months and 7.9 months (5.8–12.6) for patients receiving fulvestrant, which may suggest endocrine resistance in the latter group. The PALCAN data provides insights into practice patterns and the effectiveness of palbociclib as a first-line therapy in female patients with HR+/HER2− breast cancer in the Canadian real-world setting.

6 March 2026 in Current Oncology
Verified
Journal Article
Open access
PDF file
WCWinson Y. Cheung
Winson Y. Cheung
ALAdam Lee
Adam Lee
HCHelena Bote-de Cabo
Helena Bote-de Cabo
KBKathrin Burdenski
Kathrin Burdenski
PCPetros Christopoulos
Petros Christopoulos
CCchristos chouaid
christos chouaid
Real-world data on patients with ROS1-positive advanced non-small cell lung cancer (NSCLC) remain scarce. In this descriptive observational retrospective cohort study, we describe characteristics, treatments, and real-world progression-free survival (rwPFS) and overall survival (OS) among patients with ROS1-positive advanced NSCLC (de novo or recurrent) using secondary data pooled from clinical sites in Canada, France, Germany, Portugal, and Spain as part of the Oncology Evidence Network. Site-specific patient inclusion periods occurred between 2009 and 2023, with follow-up to 2024, allowing ≥1 year of potential follow-up at each site. In total, 108 patients were included, with most (n = 105; 97.2%) having a de novo diagnosis of advanced NSCLC. 103 patients (95.4%) received ≥1 line of systemic anticancer therapy (SACT), of which 65 (63.1%) received first-line targeted therapy, mostly crizotinib monotherapy (n = 45) or crizotinib-based regimens (n = 10), with a median (95% CI) rwPFS and OS of 14.0 (8.3–19.8) and 47.9 (27.3–not estimable) months, respectively. Thirty-eight of the 103 SACT-treated patients (36.9%) received first-line non-targeted therapy, mostly platinum-based chemotherapy (n = 26); median (95% CI) rwPFS and OS were 9.0 (7.5–11.0) and 29.3 (17.7–65.7) months, respectively. Results from this study indicated a tendency for longer survival using currently available ROS1-targeted versus non-targeted therapy for patients with ROS1-positive advanced NSCLC. Nevertheless, survival outcomes were limited, highlighting the importance of more effective emerging treatments for ROS1-positive disease.