Publications by authors named "Sue-Anne McLachlan"

Background: Immunotherapy has emerged as a standard treatment for deficient mismatch repair (dMMR) metastatic colorectal cancer (mCRC). Pembrolizumab became widely available as a first-line (1L) option in Australia following the Pharmaceutical Benefits Scheme (PBS) listing in August 2021. The uptake of new treatment options can be lengthy.

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Background: Pancreatic cancer incidence is increasing in younger populations. Differences between early onset pancreatic cancer (EOPC) and later onset pancreatic cancer (LOPC), and how these should inform management warrant exploration in the contemporary setting.

Methods: A prospectively collected multi-site dataset on consecutive pancreatic adenocarcinoma patients was interrogated.

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Despite being eligible, only 26 patients with primary brain cancer became organ donors from 2009 to 2018 in Australia. We describe two patients with high grade gliomas who successfully donated their organs after obtaining first-person consent in the outpatient setting by careful multidisciplinary planning and an elective intensive care unit admission for organ donation. Barriers and facilitators were examined based on these experiences and suggestions for future practices are explored.

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Clinical trials play a crucial role in generating evidence about healthcare interventions and improving outcomes for current and future patients. For individual trial participants, however, there are inevitably trade-offs involved in clinical trial participation, given that trials have traditionally been designed to benefit future patient populations rather than to offer personalised care. Failure to understand the distinction between research and clinical care and the likelihood of benefit from participation in clinical trials has been termed the 'therapeutic misconception'.

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Objective High-quality end-of-life care involves addressing patients' physical, psychosocial, cultural and spiritual needs. Although the measurement of the quality of care associated with dying and death is an important component of health care, there is a lack of evidence-based, systematic processes to examine the quality of dying and death of patients in hospital settings. Our purpose was to develop a systematic appraisal framework (QualDeath) for reviewing the quality of dying and death for patients with advanced cancer.

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Background: Despite global support, there remain gaps in the integration of early palliative care into cancer care. The methods of implementation whereby evidence of benefits of palliative care is translated into practice deserve attention.

Aim: To identify implementation frameworks utilised in integrated palliative care in hospital-based oncology services and to describe the associated enablers and barriers to service integration.

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Background: The global COVID-19 pandemic disproportionately affected certain populations and its management differed between countries. This national study describes characteristics and outcomes of COVID-19 in patients with cancer in Australia.

Methods: We performed a multicentre cohort study of patients with cancer and COVID-19 from March 2020 to April 2022.

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Many factors influence patients' decisions to participate in clinical trials. For many, the primary motivation is the possibility that they might derive some benefit from participation. This is particularly true for patients with limited treatment options, such as patients with advanced cancer.

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Background: Despite robust evidence for the integration of early palliative care for patients with advanced cancer, many patients still access this approach to care late. Communication about the introduction of Early Palliative Care is an important skill of healthcare providers working in this setting. In the context of limited community understanding about palliative care, patients and their families may express fear or negative reactions to its early introduction.

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Background: The role of adjuvant chemotherapy in stage II colon cancer continues to be debated. The presence of circulating tumor DNA (ctDNA) after surgery predicts very poor recurrence-free survival, whereas its absence predicts a low risk of recurrence. The benefit of adjuvant chemotherapy for ctDNA-positive patients is not well understood.

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Article Synopsis
  • - This study aimed to "re-execute" a past breast cancer clinical trial (ANZ 9311) using various Bayesian adaptive designs to see how the trial outcomes might have differed with these new methodologies.
  • - Researchers simulated different candidate designs and found ten that offered better statistical power and lower sample sizes compared to the original trial, with some designs reducing sample size by up to 37% when clinical effects were absent.
  • - The findings suggest that adopting Bayesian adaptive designs in future oncology trials could enhance statistical outcomes and efficiency, advocating for their consideration in trial design.
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Background: Prior to 2020, the use of telehealth in cancer care was limited, but COVID-19 necessitated its rapid and widespread adoption into routine care delivery. This study aimed to evaluate perceptions of telehealth through a dyadic exploration of matched cancer patient- and clinician-reported acceptability data and to explore factors that may predict greater suitability for telehealth.

Methods: A prospective, cross-sectional, exploratory survey study assessed (matched) patient- and clinician-reported perceptions of telehealth consultations occurring at a metropolitan, tertiary-based cancer centre in Victoria, Australia.

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Objective: The COVID-19 pandemic has accelerated the rapid expansion of telehealth, affording opportunities to study its impact on oncology care. Our qualitative study explored physician and patient perspectives of telehealth in cancer care.

Methods: Semistructured interviews were conducted with seven physicians and eleven patients, recruited from an Australian hospital oncology department.

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Article Synopsis
  • - The study investigates the relationship between recreational physical activity (RPA) and mortality rates in women diagnosed with breast cancer (BC), particularly focusing on those with a family history or pathogenic variants (PVs). - Results showed that engaging in RPA was linked to a 16.1% reduction in overall mortality after diagnosis, which was even higher (47.5%) in women with PVs, although RPA didn't significantly impact the risk of second breast cancer events. - The findings suggest that RPA may be especially beneficial for women with BC and PVs by lowering the risk of all-cause mortality, highlighting the importance of physical activity in this population.
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Background: Body surface area (BSA)-based dosing of irinotecan (IR) does not account for its pharmacokinetic (PK) and pharmacodynamic (PD) variabilities. Functional hepatic nuclear imaging (HNI) and excretory/metabolic/PD pharmacogenomics have shown correlations with IR disposition and toxicity/efficacy. This study reports the development of a nonlinear mixed-effect population model to identify pharmacogenomic and HNI-related covariates that impact on IR disposition to support dosage optimization.

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Background: Current international consensus is that 'early' referral to palliative care services improves cancer patient and family carer outcomes. In practice, however, these referrals are not routine. An approach which directly addresses identified barriers to early integration of palliative care is required.

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Purpose: Irinotecan (IR) displays significant PK/PD variability. This study evaluated functional hepatic imaging (HNI) and extensive pharmacogenomics (PGs) to explore associations with IR PK and PD (toxicity and response).

Methods: Eligible patients (pts) suitable for Irinotecan-based therapy.

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Background: This study examined why women and doctors screen for ovarian cancer (OC) contrary to guidelines.

Methods: Surveys, based on the Theoretical Domains Framework, were sent to women in the Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer and family physicians and gynecologists who organized their screening.

Results: Of 1264 Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer women, 832 (65.

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Background: Being a parent alongside a cancer diagnosis presents unique challenges. It is unclear to what degree parenting considerations feature in routine care and how doctors approach treatment decision discussions.

Objective: To explore doctor perspectives regarding patients with cancer who have dependent children.

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Australia, like many other nations, continues to become more culturally and linguistically diverse. Medical interpreters play a key role in bridging the linguistic gap between healthcare professionals (HCPs) and patients. Little research exists from the HCP's perspective about working with interpreters.

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Guidelines endorse the use of chemoprevention for breast cancer risk reduction. This study examined the barriers and facilitators to chemoprevention use for Australian women at increased risk of breast cancer, and their clinicians. Surveys, based on the Theoretical Domains Framework, were mailed to 1,113 women at ≥16% lifetime risk of breast cancer who were enrolled in the Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer cohort study (kConFab), and their 524 treating clinicians.

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Background: Metastatic pancreatic ductal adenocarcinoma (mPDAC) is highly lethal. Combination chemotherapy regimens improve overall survival (OS). Historically, only one-third of mPDAC patients in Victoria received chemotherapy.

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In response to the COVID-19 pandemic, the Department of Health and Human Services Victoria (DHHS), the Monash Partners Comprehensive Cancer Consortium (MPCCC) and Victorian Comprehensive Cancer Centre (VCCC) pooled their combined infrastructure to establish the Victorian COVID-19 Cancer Network (VCCN) backed by a Taskforce of expert members. In a few short months, this state-wide clinical network implemented a number of new models of care including clinics to manage acutely presenting cancer patients away from emergency departments, chemotherapy in the home, telehealth models and addressing sustainability of clinical trials.

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Article Synopsis
  • The study investigates patient preferences regarding a watch-and-wait (W&W) approach for rectal cancer after achieving a clinical complete response to neoadjuvant chemoradiation, instead of immediate rectal surgery.
  • Researchers created a questionnaire to assess the acceptable recurrence risks patients would tolerate for W&W and the survival benefits needed to prefer surgery.
  • Results showed that most respondents found the questionnaire clear, with a median acceptable recurrence risk of 20% and a median requirement of 2.0 extra years of survival to justify opting for surgery, indicating the need for further research on W&W strategy acceptance among patients.
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