Patient perceptions around the use of clinico-pathologic and genomic tools in the management of early breast cancer.

Purpose: Clinico-pathologic (including nomograms) and genomic tools are widely used to determine prognosis and predict benefit from treatment in early breast cancer (EBC). However, little is reported on patient perceptions of these tools and whether they enhance understanding of their individual risk of recurrence or benefits from therapy.

Methods: Patients with EBC were surveyed to evaluate the use of prognostic/predictive tools in clinical practice and their self-reported recurrence risk.

REaCT-5G: a randomized trial of bone pain with 5-day-filgrastim vs. pegfilgrastim for neutropenia in breast cancer.

Introduction: Granulocyte colony stimulating factors (G-CSF), including filgrastim and pegfilgrastim, are associated with bone pain, potentially impacting treatment adherence. This study hypothesized that a 5-day regimen of filgrastim (5-day-FIL) would result in less bone pain than single-dose pegfilgrastim (PEG) in patients receiving chemotherapy for early breast cancer.

Methods: In this multicenter, open-label, randomized controlled trial, patients requiring prophylactic G-CSF during chemotherapy were randomized 1:1 to receive either 5-day FIL or PEG.

Do regularly scheduled visits result in earlier detection of curable breast cancer recurrences?

Purpose: An important goal of routinely scheduled physical examination in the post-treatment surveillance of patients with early breast cancer (EBC) is to allow for earlier detection of potentially curable recurrences. We present an updated analysis of recurrence detection, and its potential for curative management, at a single-centre survivorship program that follows ASCO recommendations.

Methods: Patients with EBC referred to the Wellness Beyond Cancer Program who had breast cancer recurrence between February 2013 and June 2023 were reviewed.

Zanidatamab plus palbociclib and fulvestrant in previously treated patients with hormone receptor-positive, HER2-positive metastatic breast cancer: primary results from a two-part, multicentre, single-arm, phase 2a study.

Background: New HER2-targeted regimens, including chemotherapy-free options, are needed for metastatic breast cancer. In an ongoing, two-part, phase 2a study, we assessed the safety and antitumour activity of zanidatamab, a HER2-targeted bispecific antibody, plus palbociclib and fulvestrant, in heavily pretreated patients with hormone receptor-positive, HER2-positive advanced or metastatic breast cancer.

Methods: This multicentre, single-arm, two-part, phase 2a study is being conducted at 13 university hospitals, cancer centres, or research institutes in Spain, Canada, and the USA.

Putting Patients First: Pragmatic Trials in Gynecologic Oncology.

In November 2024, the Society of Gynecologic Oncology of Canada hosted a 2-day, interdisciplinary Pragmatic Clinical Trials (PCTs) Workshop with the goal of launching an initiative to develop and promote PCTs within the Canadian gynecologic oncology research environment. The programme brought together multiple stakeholders, including patients with ovarian cancer, patient advocates, experts in PCTs, gynecologic oncologists, medical oncologists and clinical fellows. Foundational elements of pragmatism were emphasized in the context of the primary goal of PCTs, showing the real-world effectiveness of interventions in broad patient groups.

Augmenting Insufficiently Accruing Oncology Clinical Trials Using Generative Models: Validation Study.

Background: Insufficient patient accrual is a major challenge in clinical trials and can result in underpowered studies, as well as exposing study participants to toxicity and additional costs, with limited scientific benefit. Real-world data can provide external controls, but insufficient accrual affects all arms of a study, not just controls. Studies that used generative models to simulate more patients were limited in the accrual scenarios considered, replicability criteria, number of generative models, and number of clinical trials evaluated.

Diagnosis and Management of Skin Toxicities in Systemic Treatment of Genitourinary Cancers.

The landscape of available therapeutic options for treatment of genitourinary (GU) cancers is expanding dramatically. Many of these treatments have distinct, sometimes severe, skin toxicities including morbilliform, bullous, pustular, lichenoid, eczematous, psoriasiform, and palmoplantar eruptions. Pruritus and skin pigmentation changes have also been noted.

A Randomized Trial Comparing Concurrent versus Sequential Radiation and Endocrine Therapy in Early-Stage, Hormone-Responsive Breast Cancer.

Concerns exist regarding increased toxicities, including endocrine therapy toxicity, with concurrent radiation and endocrine therapy in early breast cancer (EBC). We present a pragmatic, randomized trial comparing concurrent versus sequential endocrine and radiotherapy in hormone-responsive EBC. In this multicenter trial, patients were randomized to receive adjuvant endocrine therapy concurrent with, or sequential to, radiotherapy.

A randomised trial comparing 6-monthly adjuvant zoledronate with a single one-time dose in patients with early breast cancer.

Purpose: While adjuvant bisphosphonate use in early breast cancer (EBC) is associated with improvements in breast cancer-specific outcomes, questions remain around optimal bisphosphonate type, dose and scheduling. We evaluated a single zoledronate infusion in a prospective randomised trial.

Methods: Postmenopausal patients with EBC were randomised to receive a single infusion of zoledronate (4 mg IV) or 6-monthly treatment for 3 years.

Improving Care for Older Adults with Cancer in Canada: A Call to Action.

Most patients diagnosed with and dying from cancer in Canada are older adults, with aging contributing to the large projected growth in cancer incidence. Older adults with cancer have unique needs, and on a global scale increasing efforts have been made to address recognized gaps in their cancer care. However, in Canada, geriatric oncology remains a new and developing field.

Evaluation of Unsolicited Feedback from Patients with Cancer and Their Families as a Strategy to Improve Cancer Care Delivery.

Background: Unsolicited patient feedback (compliments and complaints) should allow the healthcare system to address and improve individual and overall patient, family, and staff experiences. We evaluated feedback at a tertiary cancer centre to identify potential areas for optimizing care delivery.

Methods: unsolicited feedback submitted to the Patient Relations Department, relating to the Divisions of Medical and Radiation Oncology, at the Ottawa Hospital, was analyzed.

The REthinking Clinical Trials Program Retreat 2023: Creating Partnerships to Optimize Quality Cancer Care.

Patients, families, healthcare providers and funders face multiple comparable treatment options without knowing which provides the best quality of care. As a step towards improving this, the REthinking Clinical Trials (REaCT) pragmatic trials program started in 2014 to break down many of the traditional barriers to performing clinical trials. However, until other innovative methodologies become widely used, the impact of this program will remain limited.

Key Considerations for the Treatment of Advanced Breast Cancer in Older Adults: An Expert Consensus of the Canadian Treatment Landscape.

The prevalence of breast cancer amongst older adults in Canada is increasing. This patient population faces unique challenges in the management of breast cancer, as older adults often have distinct biological, psychosocial, and treatment-related considerations. This paper presents an expert consensus of the Canadian treatment landscape, focusing on key considerations for optimizing selection of systemic therapy for advanced breast cancer in older adults.

Shorter Durations of Anti-HER2 Therapy for Patients with Early-Stage, HER2-Positive Breast Cancer: The Physician Perspective.

Despite evidence from clinical trials showing the efficacy of shorter durations of therapy, most HER2-positive early breast cancer (EBC) patients receive a year of anti-HER2 therapy. A survey of Canadian oncologists was conducted online, with electronic data collection, and the analysis is reported descriptively. Measures collected included current practices with respect to the duration of adjuvant anti-HER2 therapy, perspectives on data regarding shorter durations of treatment, and interest in further trials on this subject.

Evaluating the Utility and Privacy of Synthetic Breast Cancer Clinical Trial Data Sets.

Purpose: There is strong interest from patients, researchers, the pharmaceutical industry, medical journal editors, funders of research, and regulators in sharing clinical trial data for secondary analysis. However, data access remains a challenge because of concerns about patient privacy. It has been argued that synthetic data generation (SDG) is an effective way to address these privacy concerns.

Evolving Role of Risk Tailored Therapy in Early Stage HER2-Positive Breast Cancer: A Canadian Perspective.

The advent of HER2-targeted therapies has led to an important shift in the management of HER2-positive early breast cancer. However, initial treatment approaches apply uniform treatment regimens to all patients, with significant treatment-related and financial toxicities for both the patient and the health care system. Recent data demonstrates that for many patients, the chemotherapy backbone, duration and nature (mono- versus dual-targeted therapy) of the HER2 blockade can be better targeted to an individual patient's risk of recurrence.

Survival in Women with De Novo Metastatic Breast Cancer: A Comparison of Real-World Evidence from a Publicly-Funded Canadian Province and the United States by Insurance Status.

Metastatic breast cancer (MBC) patient outcomes may vary according to distinct health care payers and different countries. We compared 291 Alberta (AB), Canada and 9429 US patients < 65 with de novo MBC diagnosed from 2010 through 2014. Data were extracted from the provincial Breast Data Mart and from the National Cancer Institute's SEER program.

Management Strategies for Older Patients with Low-Risk Early-Stage Breast Cancer: A Physician Survey.

When managing older patients with lower-risk hormone-receptor-positive (HR+), HER2 negative (HER2-) early-stage breast cancer (EBC), the harms and benefits of adjuvant therapies should be taken into consideration. A survey was conducted among Canadian oncologists on the definitions of "low risk" and "older", practice patterns, and future trial designs. We contacted 254 physicians and 21% completed the survey (50/242).

Experiences and Perceptions of Older Adults with Lower-Risk Hormone Receptor-Positive Breast Cancer about Adjuvant Radiotherapy and Endocrine Therapy: A Patient Survey.

Older patients with lower-risk hormone receptor-positive (HR+) breast cancer are frequently offered both radiotherapy (RT) and endocrine therapy (ET) after breast-conserving surgery (BCS). A survey was performed to assess older patients' experiences and perceptions regarding RT and ET, and participation interest in de-escalation trials. Of the 130 patients approached, 102 eligible patients completed the survey (response rate 78%).

Does the Time of Day at Which Endocrine Therapy Is Taken Affect Breast Cancer Patient Outcomes?

Background: Non-compliance and non-persistence with endocrine therapy for breast cancer is common and usually related to treatment-induced side effects. There are anecdotal reports that simply changing the time of day when taking endocrine therapy (i.e.

Perceptions around bone-modifying agent use in patients with bone metastases from breast and castration resistant prostate cancer: a patient survey.

Background: Optimal use of bone-modifying agent (BMA) therapy in patients with bone metastases from breast and castrate-resistant prostate cancer (CRPC) is evolving.

Methods: Patients receiving BMA for bone metastases from breast or CRPC were surveyed. Information was collected on patient and disease characteristics, BMA treatments and perceptions regarding BMA benefits and side effects.

Real-World Assessment of Clinical Outcomes Among First-Line Sunitinib Patients with Clear Cell Metastatic Renal Cell Carcinoma (mRCC) by the International mRCC Database Consortium Risk Group.

Background: International Metastatic Renal Cell Carcinoma (mRCC) Database Consortium (IMDC) risk groups are important when considering therapeutic options for first-line treatment.

Materials And Methods: Adult patients with clear cell mRCC initiating first-line sunitinib between 2010 and 2018 were included in this retrospective database study. Median time to treatment discontinuation (TTD) and overall survival (OS) were estimated using Kaplan-Meier analysis.

Redrawing the Lines: The Next Generation of Treatment in Metastatic Breast Cancer.

Although not considered curative in nature, new therapeutic advances in metastatic breast cancer (MBC) have substantially improved patient outcomes. This article discusses the state-of-the-art and emerging therapeutic options for management of MBC. BC systemic therapy targets multiple key pathways, including estrogen receptor signaling, HER2 signaling, and phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling.

An Update on Predictive Biomarkers in Metastatic Renal Cell Carcinoma.

One of the major challenges of personalized oncology lies in identifying predictive biomarkers of response to therapy that are practical in the clinical setting. Although many new targeted and immune-based treatments have emerged in recent years as effective systemic therapy options in metastatic renal cell carcinoma (mRCC), optimizing the selection and sequencing of treatments for any individual patient with this disease remains a significant challenge. The CheckMate-214 trial demonstrated that the International mRCC Database Consortium risk model is an effective predictive biomarker in the first-line treatment of mRCC.