Publications by authors named "Galina Velikova"

Adherence to adjuvant endocrine therapy in women with breast cancer is low. We conducted a 24-1 fractional factorial pilot optimization trial to test four intervention components supporting medication adherence [text messages, information leaflet, acceptance and commitment therapy (ACT), self-management website], in the preparation phase of the multiphase optimization strategy. Guided by the National Institute of Health Behavior Change Consortium fidelity framework, we investigated fidelity of design, training, delivery, receipt, and enactment of four intervention components.

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Purpose: Assessing the long-term impact of cancer on people's lives is challenging due to confounding issues such as aging and comorbidities. We aimed to investigate this impact by comparing the outcomes of cancer survivors with a matched control cohort.

Methods: This was a cross-sectional survey of breast, colorectal and ovarian cancer survivors approximately 5 years post-diagnosis and a cohort of age, sex and social deprivation-matched controls who had never had a cancer diagnosis.

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Objectives: During 2015-2018, a randomised controlled trial (RCT) evaluated eRAPID, an eHealth intervention designed to capture patient-reported symptoms online during cancer treatment. eRAPID provides patients with advice on when to self-manage or seek medical support. Clinicians accessed symptom reports within electronic patient records.

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Aim: National clinical registries offer the benefits of a comprehensive dataset, particularly when linked with patient-reported outcome (PRO) data. This aim of this study was to utilise UK registry data to assess cross-sectional differences in health-related quality of life (HrQoL) in patients with primary rectal (PRC) and locally recurrent rectal cancer (LRRC).

Materials And Methods: Data were extracted from the COloRECTal cancer Repository (CORECT-R) and the Locally Recurrent Rectal Cancer - Quality of Life (LRRC-QoL) datasets.

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Article Synopsis
  • The study looked into whether patients change their answers on surveys about their health when they know doctors will read them.
  • Researchers compared two groups of patients: one that knew their answers would be seen by doctors and another that didn't.
  • The results showed no big differences in answers between the two groups, suggesting it's okay for doctors to use these surveys to help understand patients' needs.
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Purpose: Ductal carcinoma in situ (DCIS) of the breast is one of the most common pre-invasive cancers diagnosed in women. Quality of life (QoL) is extremely important to assess in studies including these patients due to the favorable prognosis of the disease. The primary objective of this systematic review was to compile a comprehensive list of QoL issues, all existing QoL assessment tools, and patient-reported outcome measures used to assess DCIS.

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Background: Patient-reported outcomes (PROs) play a crucial role in cancer clinical trials. Despite the availability of validated PRO measures (PROMs), challenges related to low completion rates and missing data remain, potentially affecting the trial results' validity. This review explored strategies to improve and maintain high PROM completion rates in cancer clinical trials.

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Background: Electronic patient-reported outcomes (ePROs) are commonly used in oncology clinical practice and have shown benefits for patients and health resource use.

Objective: The aim of this study was to compare the isolated effect of administering ePROs to patients with cancer versus a control condition.

Methods: The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines were followed.

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Adjuvant endocrine therapy (AET) reduces mortality in early-stage breast cancer, but adherence is low. We developed a multicomponent intervention to support AET adherence comprising: text messages, information leaflet, acceptance and commitment therapy (ACT), and side-effect website. Guided by the multiphase optimization strategy, the intervention components were tested in the ROSETA pilot optimization trial.

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Objective: Non-adherence to adjuvant endocrine therapy (AET) in women with breast cancer is common and associated with medication side-effects and distress. We co-designed an Acceptance and Commitment Therapy intervention (ACTION) to enhance medication decision-making and quality of life (QoL). We undertook a pilot trial of ACTION to inform the feasibility of a phase III trial, and to examine intervention acceptability.

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The adiposity influence on colorectal cancer prognosis remains poorly characterised. We performed a systematic review and meta-analysis on post-diagnosis adiposity measures (body mass index [BMI], waist circumference, waist-to-hip ratio, weight) or their changes and colorectal cancer outcomes. PubMed and Embase were searched through 28 February 2022.

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Low physical activity and high sedentary behaviour have been clearly linked with colorectal cancer development, yet data on their potential role in colorectal cancer survival is limited. Better characterisation of these relationships is needed for the development of post-diagnosis physical activity and sedentary behaviour guidance for colorectal cancer survivors. We searched PubMed and Embase through 28 February 2022 for studies assessing post-diagnosis physical activity, and/or sedentary behaviour in relation to all-cause and cause-specific mortality and recurrence after colorectal cancer diagnosis.

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The role of diet in colorectal cancer prognosis is not well understood and specific lifestyle recommendations are lacking. We searched for randomised controlled trials (RCTs) and longitudinal observational studies on post-diagnosis dietary factors, supplement use and colorectal cancer survival outcomes in PubMed and Embase from inception until 28th February 2022. Random-effects dose-response meta-analyses were conducted when at least three studies had sufficient information.

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Article Synopsis
  • A systematic review was conducted on factors like body weight, physical activity, and diet, to evaluate their impact on colorectal cancer prognosis, analyzing 167 publications, mostly observational studies.
  • The evidence indicated a complex, reverse J-shaped relationship between body mass index and cancer prognosis, but overall evidence quality was conservative due to potential biases.
  • Limited-suggestive findings were noted for recreational physical activity and healthy dietary patterns in reducing mortality risks, highlighting the need for more robust studies to develop effective lifestyle recommendations for colorectal cancer patients.
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Purpose: Adverse effects of chemotherapy often require hospital admissions or treatment management. Identifying factors contributing to unplanned hospital utilization may improve health care quality and patients' well-being. This study aimed to assess if patient-reported outcome measures (PROMs) improve performance of machine learning (ML) models predicting hospital admissions, triage events (contacting helpline or attending hospital), and changes to chemotherapy.

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The move toward early detection and treatment of cancer presents challenges for value assessment using traditional endpoints. Current cancer management rarely considers the full economic and societal benefits of therapies. Our study used a modified Delphi process to develop principles for defining and assessing value of cancer therapies that aligns with the current trajectory of oncology research and reflects broader notions of value.

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Objective: The cancer-specific health-related quality of life (HRQoL) questionnaire of the European Organisation for Research and Treatment of Cancer (EORTC), the EORTC QLQ-C30, is a frequently applied questionnaire to assess cancer patients' self-reported health used as part of research and clinical practice. Normative data obtained from the general population can facilitate the interpretation of these data. Despite its frequent application, no detailed EORTC QLQ-C30 normative data have yet been published for the United Kingdom (UK).

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Background: Meningiomas account for ~25% of all primary brain tumors. These tumors have a relatively favorable prognosis with ~92% of meningioma patients surviving >5 years after diagnosis. Yet, patients can report high disease burden and survivorship issues even years after treatment, affecting health-related quality of life (HRQOL).

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Purpose: A randomized controlled trial of online symptom monitoring during chemotherapy with electronic patient self-Reporting of Adverse-events: Patient Information and aDvice (eRAPID) system found improved symptom control and patient self-efficacy, without increasing hospital admissions and visits. The aim of this study was to evaluate the cost-effectiveness of the eRAPID eHealth intervention compared with usual care for patients receiving systemic treatment for colorectal, breast, or gynecologic cancers in the United Kingdom.

Methods: An embedded economic evaluation was conducted alongside the trial evaluating the effectiveness of eRAPID from health care provider and societal perspectives.

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Purpose: This discussion paper outlines challenges and proposes solutions for successfully implementing prediction models that incorporate patient-reported outcomes (PROs) in cancer practice.

Methods: We organized a full-day multidisciplinary meeting of people with expertise in cancer care delivery, PRO collection, PRO use in prediction modeling, computing, implementation, and decision science. The discussions presented here focused on identifying challenges to the development, implementation and use of prediction models incorporating PROs, and suggesting possible solutions.

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Purpose: Ipilimumab (IPI), in combination with nivolumab (NIVO), is an approved frontline treatment option for patients with intermediate- or poor-risk advanced renal cell carcinoma (aRCC). We conducted a randomized phase II trial to evaluate whether administering IPI once every 12 weeks (modified), instead of once every 3 weeks (standard), in combination with NIVO, is associated with a favorable toxicity profile.

Methods: Treatment-naïve patients with clear-cell aRCC were randomly assigned 2:1 to receive four doses of modified or standard IPI, 1 mg/kg, in combination with NIVO (3 mg/kg).

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