Effectiveness of the socioecological informed contextual treatment summary and care plan (TSSCP-P, Brazil) for breast cancer survivors: a randomized, controlled study.

OBJECTIVE: This study aimed to evaluate the impact of an intervention using the Treatment Summary and Survivorship Care Plan (TSSCP-P) on self-efficacy and quality of life (QoL) in breast cancer survivors. METHOD: A clinical study, randomized and controlled, conducted to assess self-efficacy and QOL in breast cancer survivors. The participants were randomly assigned to either an intervention group or a control group. The intervention group received individualized nursing consultations guided by the TSSCP-P, while the control group received standard care. Self-efficacy and QoL were assessed at three evaluation moments using validated scales: Functional Assessment of Cancer Therapy-Breast Plus Anm Morbidity (FACT B + 4) and Perceived General Self-Efficacy Scale. Statistical analyses, including regression analysis and hypothesis tests, were conducted to examine the effects of the intervention on self-efficacy and QoL. RESULTS: Female breast cancer survivors (N = 101) were recruited. The intervention group demonstrated a significant improvement in self-efficacy over time compared to the control group (p = 0.01). However, no significant differences were observed in the overall QoL scores between the two groups. Subscale analysis revealed a significant improvement in physical well-being for the intervention group (p = 0.04), while emotional well-being showed a non-significant improvement (p = 0.07). The study suggests that individualized care plans and support strategies, such as the TSSCP-P, can positively influence breast cancer survivors' self-efficacy and certain aspects of their QoL. CONCLUSION: These findings highlight the potential benefits of the TSSCP-P intervention in enhancing self-efficacy among breast cancer survivors. However, further research is needed to explore its impact on overall QoL and its effectiveness across different stages of breast cancer, as well as with longer follow-up periods. CLINICAL TRIAL REGISTRATION NUMBER: Brazilian Registry of Clinical Trials (ReBEC- RBR-2m7qkjy; UTN code: U1111-1257-3560), registered in April 19th, 2022.

Implementation and evaluation of a remote geriatric assessment and intervention program in Brazil.

BACKGROUND: This study sought to determine the feasibility and acceptability of a remote geriatric assessment (GA) and implementation (GAIN) program in Brazil. The authors also explored the effect of this program on health-related quality of life (HR-QOL) outcomes 3 months after initiating treatment. METHODS: This is a longitudinal study enrolling older adults (65+ years), diagnosed with any type of solid tumor, scheduled to initiate chemotherapy in a networked Brazilian cancer center. The GA was performed through telehealth. We assessed the feasibility of the remote GA, acceptability to patients, and changes in patient-centered outcomes (HR-QOL, mood, function) from baseline to month 3. Linear mixed model analysis was done, adjusting for age, gender, race, income, and disease stage. RESULTS: Fifty-six patients completed all intended assessments. Notably, the threshold of feasibility was 70% and there was 92% complete adherence. Average age was 76 years old (SD = 7.2). Most patients were female (57%), married (59%), and had a college degree (46%). The most common diagnoses were gastrointestinal (39%) and gynecological cancers (18%); most were diagnosed at an advance disease stage (77%). A total of 32 patients were referred to a remote appointment and 86% followed this recommendation(s). Significant improvement in Functional Assessment of Cancer Therapy - General FACT-G (mean difference, 6.04; p < .001), Geriatric Depression Scale (mean difference, -0.86; p = .008), and instrumental activities of daily living ratio (mean difference, 0.17; p < .001) were found. CONCLUSION: Remote GAIN is feasible and acceptable to older adults with cancer receiving treatment in Brazil. The authors also found significant improvement in HR-QOL outcomes over time. Notably, this GAIN program could guide early detection of chemotherapy toxicity and improving patient-reported outcomes in low-resource environments.

Patients' Perceptions Regarding the Relevance of Items Contained in the Functional Assessment of Cancer Therapy Kidney Symptom Index-19.

BACKGROUND: There is a lack of consensus regarding the optimal method of assessing health-related quality of life (HR-QOL) among patients with metastatic renal cell carcinoma (mRCC). This study explored the perceived relevance of items that make up the Functional Assessment of Cancer Therapy Kidney Symptom Index-19 (FKSI-19), as judged by patients with mRCC. METHODS: This was a multinational cross-sectional survey. Eligible patients responded to a questionnaire composed of 18 items that assessed the perceived relevance of each item in the FKSI-19 questionnaire. Open-ended questions assessed additional issues deemed relevant by patients. Responses were grouped as relevant (scores 2-5) or nonrelevant (score 1). Descriptive statistics were collated, and open-ended questions were analyzed and categorized into descriptive categories. Spearman correlation statistics were used to test the association between relevance and clinical characteristics. RESULTS: A total of 151 patients were included (gender: 78.1 M, 21.9F; median age: 64; treatment: 38.4 immunotherapy, 29.8 targeted therapy, 13.9 immuno-TKI combination therapy) in the study. The most relevant questions evaluated fatigue (77.5), lack of energy (72.2), and worry that their condition will get worse (71.5). Most patients rated blood in urine (15.2), fevers (16.6), and lack of appetite (23.2) as least relevant. Qualitative analysis of open-ended questions revealed several themes, including emotional and physical symptoms, ability to live independently, effectiveness of treatment, family, spirituality, and financial toxicity. CONCLUSION: There is a need to refine widely used HR-QOL measures that are employed among patients diagnosed with mRCC treated with contemporary therapies. Guidance was provided for the inclusion of more relevant items to patients' cancer journey.

Cancer Patients' Unmet Needs in Three Low- to Middle- Income Countries: Perspectives from Health Care Providers.

We sought to determine differences by low- and middle- income countries (Brazil, Romania, and Turkiye) on the degree to which health care providers (HCPs) note unmet needs among patients with cancer (N = 741). HCPs endorsed sexuality/intimacy and financial concerns as the most common. Investigating age differences in unmet needs between Brazil and Turkiye, were that should be targeted by. Results revealed that unmet needs to manage emotional distress were higher among older patients in Turkiye, whereas unmet needs to manage insomnia/fatigue were higher among pediatric patients in Brazil. Findings may guide the development of programs to address unmet needs among patients.

Anxiety, Depression, and Coping Strategies during Chemotherapy Treatment: A Comparison of Older and Younger Adults with Advanced Cancer in Brazil.

We sought to examine differences in anxiety, depression and coping strategies among younger (<64-year old) and older (≥65-year old) patients. Patients were assessed at baseline (T1), mid-point (T2) and on the last day of treatment (T3) using the Hospital Anxiety and Depression Scale and the Ways of Coping. A linear mixed modeling approach was used. The study included 200 patients (gender: 70% women; diagnosis: 30% breast, 22% hematological, 18% gastrointestinal; disease stage: 60% advanced). Older patients who used an emotion-focused coping strategy had a greater decrease in anxiety at T3 compared to those that used problem-focused coping (p = .002).

Global Breast Cancer Initiative: A platform to address the psycho-oncology of cancer in low- and middle-income countries for improving global breast cancer outcomes.

BACKGROUND: Psycho-oncology is a clinical specialty in which the humanistic aspects of cancer diagnoses and treatment are addressed to reduce the psychological burden for patients and their caregivers to optimize patient participation, cancer outcomes and quality-of-life, which is especially critical in cultures where cancer is perceived as invariably fatal. Psycho-oncology programs face multiple barriers in low- and middle-income countries, including limited resource allocation and lack of training, both of which have been impediments to psycho-oncology programs becoming recognized as core competencies in cancer management and part of a standard medical curriculum. PURPOSE: This paper discusses the role of the Global Breast Cancer Initiative (GBCI) in helping to overcome inequities in breast cancer care and improve clinical outcomes from a psycho-oncology perspective as a model for improved cancer care in limited resource settings. FINDINGS: GBCI applies a comprehensive framework encompassing all phases of cancer care (defined through three pillars spanning the continuum of cancer management) and includes addressing the physical, psychological, and social needs of women throughout the life-course. Efforts to promote policies that increase access to early detection and treatment programs and improve health literacy among the public are important strategies to mitigate the most common emotional and physical challenges reported by people with cancer accessing care. CONCLUSIONS: Future efforts will focus on the integration of culturally appropriate guidance to promote early cancer detection and treatment completion through training programs for clinicians to establish core competencies in psycho-oncology. Emerging advocacy efforts in the oncology arena may help guide the integration of psycho-oncology services into routine care in countries where these services are not already integrated into the standard curriculum.

mHealth program for patients with advanced cancer receiving treatment in a public health hospital in Brazil.

OBJECTIVE: Previous studies have suggested the benefit of routine screening for biopsychosocial symptoms among patients with cancer. In recognition of the lack of data from low- and middle-income countries, this study sought to test and determine the effect of a mHealth program to screen biopsychological symptoms among patients with advanced breast or gynecological cancer. METHODS: This was a quasi-experimental pre-post study conducted in a public hospital located in central western Brazil. Patients diagnosed with advanced breast of gynecological cancer who were about to initiate chemotherapy treatment at this institution and had access to Internet by smartphone, computer or tablet were invited to participate. Patients received training on using the app Comfort, a program developed to rate their physical and emotional symptoms during the 6-month of the proposed study. Patients were also asked to complete the EuroQOL 5D (EQ-5D-3L) every month. Mann-Whitney U test was used to determine differences among groups of patients (engaged and non-engaged). RM-ANOVA was used to determine the effect of time on mean visual analog scale (VAS) score. RESULTS: A total of 125 patients were recruited (median age = 46.6 years old, 41.6% married). Mostly, patients possessed lower levels of education and had relatively low monthly incomes. Notably, 67.2% of patients engaged with the Comfort program, and few patients (4%) withdrew due to lack of engagement with the program or issues with internet connection. In general, patients who engaged with the program reported improvement in physical and emotional symptoms (p < 0.01), as well as in their overall quality of life (VAS; p = 0.009), compared with patients who did not engage with the program. CONCLUSIONS: This is the first mHealth program developed in Brazil for patients in a low resource setting. Our findings suggest that Comfort could be an effective resource to assist patients and health care providers track symptoms and improve patients' quality of life.

International collaboration for assessing unmet needs of cancer survivors and family caregivers: Lens of healthcare professionals.

OBJECTIVE: Cancer patients and their family caregivers have reported various needs that are not met. Recognition of the unmet needs by healthcare professionals may be a first step to adequately and systematically addressing them. Thus, the International Psycho-Oncology Society Survivorship Online Survey was developed to measure healthcare professionals' evaluation about the unmet needs of their patients and family caregivers around the globe. METHODS: The survey was developed in English and translated to additional 14 different languages. The survey was distributed on the web-based REDCap application to over 50 psycho-oncology societies and their networking platforms as well as social media and to authors who have published in psycho-oncology journals globally. RESULTS: A total of 1472 participants from 36 countries at least partially completed the survey. Healthcare professionals evaluated needs for managing one's emotional distress and patients' medical care and symptoms as the most common concerns for both patients and their family caregivers across all patient age groups. Less than two-thirds of the participating healthcare professionals reported that their institution had services or programs to address the needs of the patients or caregivers. CONCLUSIONS: Findings suggest several directions for further analyses to provide more specific information that would be readily translated into clinical practices, research, and policy aimed to enhance the quality of life of cancer patients, survivors, and family caregivers around the globe. In addition, this collaborative effort also hints at the importance of establishing international networks to promote equity in care for people touched by cancer worldwide.

Healthcare providers' perceptions about the unmet needs of their patients with cancer across healthcare systems: results of the International Psycho-Oncology Society survivorship survey.

OBJECTIVE: Systematic understanding of patients' unmet needs is essential for providing effective supportive care. This study sought to compare the unmet needs of patients with cancer identified by health care providers (HCPs) among four major healthcare systems. METHODS: HCPs (n = 247) participated in the International Psycho-Oncology Society (IPOS) Survivorship Online Survey, evaluating their patients' unmet needs. The country of HCPs was grouped into four major healthcare systems: Beveridge model, Bismarck model, National Health Insurance model, and out-of-pocket model. RESULTS: Most HCPs were from countries with the Bismarck model. Substantial levels (> 50%) of unmet needs in all domains are reported across the four healthcare systems. Pediatric patients/survivors living in countries under out-of-pocket healthcare model were evaluated to have less unmet needs for managing decline in physical or cognitive functioning and insomnia/sleep difficulty/fatigue, than those in countries under Beveridge, Bismarck, and National Health Insurance models. Moreover, middle-aged patients/survivors under Beveridge and National Health Insurance models were likely to have greater unmet needs for dealing with cancer-related financial concerns than those under Bismarck model. CONCLUSION: This study provides valuable insights into the unmet needs of patients with cancer in different healthcare systems, highlighting the significance of targeted interventions to address the unique needs of patients across diverse healthcare systems. Further investigation is warranted to identify the system factors associated with patients' unmet needs, enabling the development of effective healthcare policies and interventions to comprehensively address the multifaceted needs of patients with cancer.

Racial and ethnic differences in perceptions of germline or somatic DNA sequencing among patients with advanced prostate, urothelial, or kidney cancer.

We sought to determine racial and ethnic differences in perceptions (quality of communication, expectations, and concerns) of germline or somatic DNA sequencing (genomic profiling). Patients with prostate, urothelial, or kidney cancer were surveyed using a questionnaire that assessed previous experience, beliefs, expectations, and concerns regarding genomic profiling. Descriptive statistics and chi-square tests were used to identify factors associated with patients' perceptions of genomic profiling. A total of 150 consecutive patients were enrolled. The majority were male (74%) with a mean age of 68 years old. Most patients underwent somatic testing (54%), 24% undertook germline testing, and 21% undertook both tests. Significant differences were found across racial and/or ethnicity concerning factors that could have influenced patients' decision to pursue genomic profiling, including ability to guide the type of treatment (White: 54.1% vs. other ethnic groups: 43.9%, p = 0.04) and potential to improve treatment response (White: 10.1% vs. other ethnic groups: 22.0%, p = 0.04). Other ethnic group of patients were more concerned about learning that the cancer was less treatable or aggressive (43.8% vs. 27.7%, p = 0.01) and anxious about what would be learnt from genomic profiling (34.4% vs. 21.3, p = 0.01) as compared to White patients. Our findings reinforce the importance of developing culturally tailored education to help patients participate actively in decisions about genomic profiling.

Association between requests for supportive care assistance and patients' characteristics, prior to treatment in a comprehensive cancer center.

PURPOSE: Patients with cancer experience a wide array of distress symptoms (emotional, practical, physical, and functional), which often hinders their quality of life and survival. Unfortunately, only a small proportion of these patients request assistance for these problems. This study explored the relationship between requests for supportive care assistance and distress of patients newly diagnosed with cancer. METHODS: This study was conducted at city of hope, an NCI-designated comprehensive cancer center, and included 2658 patients treated between 2009 and 2017. Patients were asked to complete a 30-item biopsychosocial problem-related distress survey via SupportScreen® , prior to any treatment. Correlations between requests for assistance and distress domains were evaluated. Primary types of requests were examined for all patients, and general linear modeling was used to determine the significant predictors of requests for assistance. p-values <0.05 were considered significant. RESULTS: Strong correlations were observed between distress subscales and requests for assistance (r ranging from 0.67 to 0.69). The primary types of requests varied by domain: items such as feeling anxious or fearful, finances, and sleep ranked first within the emotional, practical, and physical-functional domains respectively (∼20% requests for each item). Verbal assistance was generally preferred to the written form of assistance, with the exception of a few items, including finances. Overall, household income of <$100,000 and completing the survey in Spanish were significant predictors of requests for assistance. Regarding the practical and physical-functional domains, having an advanced stage of disease was significantly related to an increase in demands for assistance. Being older was associated to a decrease in requests for assistance vis-à-vis both the emotional and physical functional subscales. CONCLUSION: We demonstrated that distress levels were strongly correlated with requests for assistance. Patients' clinical and demographic characteristics such as age, household income, disease stage and survey language were associated with inquiries for psychosocial support, highlighting the importance of targeting interventions towards those most likely to need them, to better aim patients' needs. Therefore, tailoring supportive care assistance to patients' characteristics could help boost the frequency of requests, reduce distress burden, and improve health outcomes.

Discrepancies between genitourinary cancer patients' and clinicians' characterization of the Eastern Cooperative Oncology Group performance status.

BACKGROUND: Patient-reported outcomes have been used to assess treatment effectiveness and actively engage patients in their disease management. This study was designed to describe the patient-reported performance status (PS) and the provider-reported PS. METHODS: Patients with metastatic genitourinary cancers were recruited from a single cancer center before the initiation of a new line of treatment. PS (Eastern Cooperative Oncology Group [ECOG]), quality of life (Functional Assessment of Chronic Illness Therapy-General), and distress (Patient-Reported Outcomes Measurement Information System Anxiety and Depression) were self-reported by patients. Clinical data (eg, age, sex, diagnosis, and physician-reported ECOG PS) were extracted from medical records. Multivariate analysis was used to determine the association between PS, quality of life, and psychological symptoms. RESULTS: One hundred forty-five patients were enrolled (76.6% male, 70.3% White, 81.4% married, and 76.6% well educated). The median age was 67 years; 66.9% were diagnosed with renal cell carcinoma, 20.0% were diagnosed with urothelial carcinoma, and 13.1% were diagnosed with prostate cancer. Clinicians more frequently classified patients' ECOG PS as 0 in comparison with the patients themselves (92.4% vs 64.1%; P = .001). Higher clinician-reported ECOG PS was associated with poorer physical and functional well-being and higher rates of depression (P < .01), whereas higher patient-reported ECOG PS was associated with worse psychosocial outcomes (P < .01). CONCLUSIONS: Discrepancies were noted between the patient- and provider-reported ECOG PS, with clinicians overestimating the ECOG PS in comparison with the patients themselves. This study's findings suggest that patients incorporate their social and emotional well-being into their PS score in addition to their physical well-being. This information is not immediately accessible to most clinicians from just a standard patient interview and likely accounts for the overestimation of the patients' ECOG PS by the clinicians.

Emotional problem-related distress screening and its prevalence by cancer type: Assessment by patients' characteristics and level of assistance requested.

OBJECTIVE: Emotional problem-related distress is a common issue faced by patients with cancer. However, patients suffering with this emotional burden do not typically seek assistance. This study sought to determine the prevalence of emotional problem-related distress by cancer type, and identify factors correlated with the level of assistance requested. METHODS: Using the SupportScreen®, patients were screened for emotional problem-related distress at their first or second visit to an NCI designated Comprehensive Cancer Center. General Linear Model was used to test the association between emotional problem-related distress and type of cancer, and the relationship between level of assistance requested and patients' characteristics. RESULTS: A total of 2,421 patients were included in this analysis. Patients were mostly female (62%), diagnosed with breast (24%), gynecological (16%) or gastrointestinal (15%) cancers. Highest levels of emotional problem-related distress were reported by patients diagnosed with lung, gynecological, breast and gastrointestinal cancers. Level of assistance requested were significantly associated with problem-related distress scores (p < 0.001), which were higher among patients with lower household incomes (p < 0.001) and Spanish as primary language (p = 0.001). CONCLUSION: Our study found an association between Level of assistance requested and emotional problem-related distress, which were heightened by lower income and Spanish-speaking. Intervention strategies should be considered to increase access to psychosocial support services.

Emotional Distress During the COVID-19 Pandemic: Psycho-Oncology Perspective.

Patients with cancer represent a vulnerable population and are at greater risk of developing serious complications as a result of a COVID-19 infection. In response, oncology societies around the world have proposed changes to their standards of care. These changes have helped guide health care providers in prioritizing clinical management of patients with cancer: identifying situations in which urgent intervention is needed and those that can be triaged until the risk of infection has lessened.

Obesity and psychosocial well-being among cancer patients and survivors.

OBJECTIVE: As the association between obesity and cancer receives increasing attention, studies have begun to examine the potential impact of excess weight on psychosocial domains during treatment and survivorship. The current study will examine the effect of weight status on psychosocial outcomes among patients diagnosed with breast cancer, prostate cancer, and colon cancer. METHODS: This retrospective study included 4159 patients over the age of 55 who were diagnosed with postmenopausal breast (52.2%), prostate (38.7%), or colon cancer (9.1%). Prior to treatment, patients were screened for problem-related distress using a 33-item touch screen-based instrument. Descriptive statistics were generated for each cancer type and one-way analysis of covariance (ANCOVA) used to determine significant differences in distress by weight (nonobese: <30 kg/m2 vs obese: ≥30 kg/m2 ). RESULTS: A higher prevalence of biopsychosocial problem-related distress was reported by patients with breast cancer (M = 4.3) compared with prostate (M = 2.8) and colon cancer (M = 3.8). Obese breast and prostate cancer patients reported higher levels of problem-related distress compared with nonobese patients (P < .05), whereas an opposite trend was noted for patients with colon cancer. CONCLUSION: The current study found notable obesity-related differences among patients diagnosed with postmenopausal breast cancer or prostate cancer, with excess weight consistently associated with poorer psychosocial outcomes. These findings among a large cohort of patients provide insight into the impact of obesity during the cancer care trajectory and can provide guidance in the development and implementation of supportive care services for this "at-risk" population.

Biopsychosocial distress and clinical outcome in metastatic renal cell carcinoma.

OBJECTIVE: Limited research exists examining the biopsychosocial experience of patients diagnosed with metastatic renal cell carcinoma (mRCC), a disease commonly associated with a poor prognosis. The purpose of this study was to describe rates and types of distress in mRCC patients and explore the relationship between distress and overall survival. METHOD: A cohort of 102 patients with mRCC treated at a single institution was assessed by a touch screen-based instrument comprising 22 core items spanning physical, practical, functional, and emotional domains. Association between biopsychosocial distress and clinicopathologic criteria was interrogated. Overall survival was compared between patients with low distress versus high distress.ResultHigh rates of distress (20.7%) were found among patients newly diagnosed with mRCC. Among those domains contributing to distress, pain, fatigue, and financial comorbidity were the most commonly reported by patients with mRCC. A trend toward poorer overall survival in those patients with high distress versus low distress was observed among mRCC patients.Significance of resultsBased on data from a relatively large sample of patients, this study provides the first specific insights into the potential impact of biopsychosocial distress and outcomes among patients with mRCC.

Breast and gynecological cancer patients' risk factors associated with biopsychosocial problem-related distress.

OBJECTIVES: Inequalities exist between breast and gynecological cancer patients' experiences, leading to high levels of distress throughout the cancer journey. The present study aims to identify differences in source of biopsychosocial problem-related distress between women diagnosed with breast or gynecological cancers. METHODS: From 2009 to 2016, women with breast (n = 2111) and gynecological (n = 641) cancers were screened using the core items of the instrument You, Your Family, and City of Hope are a Team. This is a touch screen-based instrument that assess problem-related distress due to physical, practical, functional, emotional, and other problems and identifies types of assistance requested. Data were analyzed using the linear regression model. RESULTS: A significant difference in overall biopsychosocial problems rated as high distress was found between breast (M = 5.0) and gynecological (M = 6.2) cancer patients (P < .001). Gynecological cancer patients endorsed a greater number of problems to talk with a member of the team (alone or with written information), while both cancer groups requested written information equally. Gynecological cancer was associated with higher physical, functional, emotional, and total distress. Younger patients, non-Asian, and those with lower education and lower household income also reported greater distress. CONCLUSIONS: Gynecological cancer patients represent a high-risk group, reporting greater problem-related distress and higher levels of requested assistance. Age, education, race/ethnicity, and income were found to be potential risk factors. Findings highlight the importance of considering characteristics and special needs related to specific types of cancer to assist in the effective treatment of distress throughout the continuum of care.

Assessment of distress and quality of life in rare cancers.

OBJECTIVE: Rare cancers are a heterogeneous group of conditions that can be associated with emotional and physical impairments. In view of the dearth of research in this area, we investigated the quality of life and prevalence of distress in a cohort of patients diagnosed with a rare cancer, classified by the RARECARE definition. METHODS: A cohort of rare cancer patients, treated in a Brazilian public cancer center, was assessed for distress (Distress Thermometer), anxiety/depression (Hospital Anxiety and Depression Scale), and quality of life (Functional Assessment of Cancer Therapy-General Version). Descriptive statistics were generated, and multivariate analyses were used to identify factors associated with distress, anxiety/depression, and quality of life. RESULTS: A total of 137 patients (52.6% male, mean age of 50 years; range 18-90) were identified. Nearly half (49.6%) of patients reported high levels of distress, with 19.7% endorsing anxiety and 15.3% depression. In multivariate analysis, demographic and clinical variables associated with worse psychosocial outcomes included younger age (P < 0.05), female gender (P < 0.01), advanced disease stage (P < 0.01), and engagement in active therapy (P < 0.05). CONCLUSIONS: Patients diagnosed with rare cancer reported poorer psychosocial outcomes and impaired quality of life when compared to the general population of cancer patients. Certain demographic groups (eg, women and younger patients) may benefit from targeted psychosocial interventions.

The Role of Circulating Tumor DNA in Renal Cell Carcinoma.

OPINION STATEMENT: Next-generation sequencing (NGS) of circulating tumor DNA (ctDNA) is a novel technology that can complement tumor tissue NGS and has the potential to influence diagnosis and treatment of both localized and metastatic renal cell carcinoma (mRCC). ctDNA NGS is an attractive alternative to tumor tissue NGS because it circumvents the need for repeated, invasive tissue biopsies while providing a contemporary mutational profile of a patient's tumors. While the role of ctDNA NGS in non-small cell lung cancer and colorectal cancer is well established, studies of ctDNA NGS in mRCC are only hypothesis-generating to date. In the localized RCC setting, ctDNA has demonstrated potential as a surveillance biomarker for disease recurrence. Earlier detection of mRCC, prior to the onset of symptoms, may lead to improved clinical outcomes. NGS of ctDNA in mRCC is even more promising in patients with metastatic disease. The majority of patients with mRCC have detectable ctDNA. Thus, ctDNA could be used to select patients for biomarker-guided clinical trials, such as savolitinib in MET-positive papillary RCC. Furthermore, studies have shown that the mutational profile of mRCC in ctDNA evolves after treatment progression. The most exciting potential role for ctDNA in mRCC is as a predictive biomarker for response to immunotherapy. Studies have shown that tumor mutational burden (TMB) is predictive of response to immune checkpoint inhibitors, and hypermutated ctDNA can act as a surrogate biomarker for TMB and response to immunotherapy. While studies of ctDNA in RCC are still in their infancy, there are many promising roles for ctDNA in localized and metastatic RCC.