Publications by authors named "Mileshkin L"

Objective: We report updated results with longer follow-up in patients with MSI-H/dMMR endometrial cancer (EC) in cohort D (advanced EC of any MSI/dMMR status) and cohort K (any MSI-H/dMMR advanced solid tumor, except colorectal) of the phase 2 KEYNOTE-158 study (NCT02628067) and the first results from patients with non-MSI-H/non-dMMR advanced EC (cohort D).

Methods: Patients received pembrolizumab 200 mg Q3W for ≥35 cycles. The primary endpoint was objective response rate (ORR) per RECIST v1.

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The use of circulating tumour DNA (ctDNA) to profile mutational signatures represents a non-invasive opportunity for understanding cancer mutational processes. Here we present MisMatchFinder, a liquid biopsy approach for mutational signature detection using low-coverage whole-genome sequencing of ctDNA. Through analysis of 375 plasma samples across 9 cancers, we demonstrate that MisMatchFinder accurately infers single-base and doublet-base substitutions, as well as insertions and deletions to enhance the detection of ctDNA and clinically relevant mutational signatures.

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Background: Chemo-immunotherapy is standard of care for women with recurrent or advanced mismatch repair deficient endometrial carcinoma. However, it is uncertain whether patients with mismatch repair deficient advanced or recurrent endometrial carcinoma derive less benefit from chemotherapy than those with mismatch repair proficient endometrial carcinoma.

Methods: We performed a meta-analysis of randomized controlled trials (RCTs) in advanced or recurrent endometrial carcinoma to determine the difference in the benefit of chemotherapy in mismatch repair deficient vs mismatch repair proficient endometrial carcinoma.

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Article Synopsis
  • Recent research on the HER2-targeted therapy trastuzumab-deruxtecan has led to a study examining HER2-low status in over 800 advanced endometrial cancer (EC) cases, which typically have a poor prognosis despite numerous treatment options.
  • The study found that 17.2% of tumors were HER2-low, with higher frequencies in recurrent or metastatic EC (35.6%) and primary stage IV EC (29.9%), indicating HER2 status is present across various EC classifications without independent prognostic value.
  • The findings suggest that a significant portion of high-risk and metastatic EC cases exhibit HER2 overexpression, emphasizing the importance of broad HER2 testing and potential treatment opportunities for diverse patient groups.
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Cancer of unknown primary (CUP) represents a heterogeneous group of metastatic tumors for which standardized diagnostic work-up fails to identify the primary site. We aimed to describe the Peter MacCallum Cancer Centre experience with F-FDG PET/CT in extracervical CUP with respect to detection of a primary site and its impact on management. A secondary aim was to compare overall survival (OS) in patients with and without a detected primary site.

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Article Synopsis
  • The GCIG Endometrial Cancer Consensus Conference was held in Incheon, South Korea, aimed at creating consensus statements to improve future clinical trials in endometrial cancer.
  • Representatives from 33 member groups developed 18 statements across four key topics, focusing on treatment strategies and trial methodologies, including consideration for low-resource settings.
  • For the first time, the conference included patient advocates and early-career investigators, resulting in a high consensus rate on the statements, reinforcing progress in global clinical research for endometrial cancer.
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Article Synopsis
  • The CUPISCO trial is studying whether a new treatment approach called molecularly guided therapy (MGT) can help patients with a type of cancer called cancer of unknown primary (CUP) do better than the standard chemotherapy.
  • This trial involved 1,505 patients from 34 countries and focused on those who showed improvement after initial chemotherapy.
  • The goal is to see if using genomic profiling in deciding treatments can lead to better results in fighting cancer compared to the usual treatment options.
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Importance: Cervical cancer is a common and lethal cancer worldwide. Bintrafusp alfa is a first-in-class bifunctional fusion protein composed of the extracellular domain of the human transforming growth factor β receptor II (or transforming growth factor β trap) fused via a flexible linker to the C-terminus of each heavy chain of an immunoglobulin G1 antibody blocking programmed cell death 1 ligand 1.

Objective: To evaluate the safety and response rates of bintrafusp alfa in patients with recurrent or metastatic cervical cancer.

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Background: Ovarian cancer has the highest mortality among gynecologic cancers, primarily because it typically is diagnosed at a late stage and because of the development of chemoresistance in recurrent disease. Improving outcomes in women with platinum-resistant ovarian cancer is a substantial unmet need. Activation of the glucocorticoid receptor (GR) by cortisol has been shown to suppress the apoptotic pathways used by cytotoxic agents, limiting their efficacy.

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Purpose Of Review: There is significant need to improve diagnostic and therapeutic options for patients with cancer of unknown primary (CUP). In this review, we discuss the evolving landscape of molecular profiling in CUP.

Recent Findings: Molecular profiling is becoming accepted into the diagnostic work-up of CUP patients with tumour mutation profiling now described in international CUP guidelines.

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Background: Combining PARP inhibitors (PARPis) with immune checkpoint inhibitors may improve clinical outcomes in selected cancers. We evaluated rucaparib and atezolizumab in advanced gynaecological or triple-negative breast cancer (TNBC).

Methods: After identifying the recommended dose, patients with PARPi-naive BRCA-mutated or homologous recombination-deficient/loss-of-heterozygosity-high platinum-sensitive ovarian cancer or TNBC received rucaparib plus atezolizumab.

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Background: Phase 1 oncology trials provide access to new therapies and may improve cancer outcomes. Phase 1 trials conducted in the Asian-Pacific region are increasing at a faster rate than the global trend. This study aimed to describe the changing landscape of phase 1 oncology trials in Australia in the last decade.

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Predicting distant recurrence of endometrial cancer (EC) is crucial for personalized adjuvant treatment. The current gold standard of combined pathological and molecular profiling is costly, hampering implementation. Here we developed HECTOR (histopathology-based endometrial cancer tailored outcome risk), a multimodal deep learning prognostic model using hematoxylin and eosin-stained, whole-slide images and tumor stage as input, on 2,072 patients from eight EC cohorts including the PORTEC-1/-2/-3 randomized trials.

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Background: Numerous studies have shown that older women with endometrial cancer have a higher risk of recurrence and cancer-related death. However, it remains unclear whether older age is a causal prognostic factor, or whether other risk factors become increasingly common with age. We aimed to address this question with a unique multimethod study design using state-of-the-art statistical and causal inference techniques on datasets of three large, randomised trials.

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Objective: To investigate cell-free DNA (cfDNA) in plasma and ascites and its association with clinical outcomes (paracentesis-free interval, overall survival) and CA125 level in participants with advanced ovarian cancer, treated with palliative intraperitoneal bevacizumab to delay re-accumulation of ascites.

Methods: cfDNA was extracted from 0.3 to 1 mL samples from 20/24 participants of the REZOLVE trial.

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Universal tumor screening in endometrial carcinoma (EC) is increasingly adopted to identify individuals at risk of Lynch syndrome (LS). These cases involve mismatch repair-deficient (MMRd) EC without MLH1 promoter hypermethylation (PHM). LS is confirmed through the identification of germline MMR pathogenic variants (PV).

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Background: Patients with unfavorable carcinoma of unknown primary origin (CUP) have an extremely poor prognosis of ∼1 year or less, stressing the need for more tailored treatments, which are currently being tested in clinical trials. CUPISCO (NCT03498521) was a phase II randomized study of targeted therapy/cancer immunotherapy versus platinum-based chemotherapy in patients with previously untreated, unfavorable CUP, defined as per the European Society for Medical Oncology guidelines. We present a preliminary, descriptive molecular analysis of 464 patients with stringently diagnosed, unfavorable CUP enrolled in the CUPISCO study.

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Personalised oncology, whereby patients are given therapies based on their molecular tumour profile, is rapidly becoming an essential part of optimal clinical care, at least partly facilitated by recent advances in next-generation sequencing-based technology using liquid- and tissue-based biopsies. Consequently, clinical trials have shifted in approach, from traditional studies evaluating cytotoxic chemotherapy in largely histology-based populations to modified, biomarker-driven studies (e.g.

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Introduction: People with advanced non-small cell lung cancer (NSCLC) treated with immunotherapies (IT) or targeted therapies (TT) may have improved outcomes in a subset of people who respond, raising unique psychological concerns requiring specific attention. These include the need for people with prolonged survival to reframe their life plans and tolerate uncertainty related to treatment duration and prognosis. A brief intervention for people with advanced cancer, Managing Cancer and Living Meaningfully (CALM), could help people treated with IT or TT address these concerns.

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Article Synopsis
  • The study aimed to evaluate the effectiveness and safety of pamiparib combined with tislelizumab in patients with advanced solid tumors who had already received treatment.
  • A total of 180 patients were analyzed, revealing an overall objective response rate (ORR) of 20.0%, with the highest response seen in patients with triple-negative breast cancer (ORR: 47.4%).
  • While the combination treatment showed some antitumour activity, it also resulted in high rates of severe side effects, with 61.7% of patients experiencing grade 3 or higher adverse events.
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Background: Diagnosis and management of cancers of unknown primary (CUP) remain challenging. This study examines the referral patterns, management and outcomes of patients referred to Australia's first dedicated CUP clinic.

Methods: Retrospective medical record review was conducted for patients seen at the Peter MacCallum Cancer Centre CUP clinic between July 2014 and August 2020.

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