Systemic Cancer Treatment Research Articles

SIOG2023-5-P-348 - Impact of dietetic intervention on nutrition of older adults on systemic treatment for cancer:

SIOG2023-5-P-348 - Impact of dietetic intervention on nutrition of older adults on systemic treatment for cancer:

P125 - Clinical Outcomes of Metastasis-directed Stereotactic Ablative Radiation Therapy (MDT-SABR) as single intervention added to baseline systemic treatment for Oligometastatic Castration-Resistant Prostate Cancer (mCRPC)

P125 - Clinical Outcomes of Metastasis-directed Stereotactic Ablative Radiation Therapy (MDT-SABR) as single intervention added to baseline systemic treatment for Oligometastatic Castration-Resistant Prostate Cancer (mCRPC)

Impact of the COVID-19 pandemic on administration of systemic therapy in the Medicare population.

158 Background: The treatment of cancer was profoundly disrupted by COVID-19. Although there were well-documented impacts on cancer screening and surgery, the precise effect on treatment patterns with systemic therapy in the Medicare population has not been described. Methods: This study analyzed the 100% Medicare Research Identifiable Files (2017-2022) for patients with breast cancer, colorectal cancer, lung cancer, prostate cancer, and lymphoma who received antineoplastic therapy under either the Part B or Part D benefit setting. We examined patient demographics, patient diagnoses, treatment regimens, and Total Cost of Care (TCOC) (per month on treatment). Patients were selected for analysis if they had 12 months of continuous enrollment in Medicare Parts A, B, and D within the calendar year, and at least 2 claims of the same therapy within 60 days. Demographic information was attributed from the Master Beneficiary Summary File (MBSF). Results: Prior to the pandemic, 14% of breast cancer patients, 16% of colorectal cancer patients, 34% of lung cancer patients, 25% of lymphoma patients and 12% of prostate cancer patients received systemic therapy. During the pandemic, the number of Medicare beneficiaries with a cancer diagnosis decreased in all diagnosis groups. In addition, during the peak year of the COVID pandemic (2020), the proportion of beneficiaries receiving therapy decreased as well, ranging from -3% (lymphoma) to -9% (colorectal). This decrease was uniform across race and socio-economic indicators (LIS beneficiary or dually enrolled in Medicare/Medicaid). For four of the cancer types (breast, colorectal, lung, and prostate), the average number of months on therapy in 2020 slightly increased for chemotherapy. Across all cancer types and treatment types, the average per month TCOC increased during in 2020. Conclusions: Treatment of cancer was disrupted by COVID-19. A smaller number of Medicare beneficiaries were diagnosed with cancer and of these, a smaller percent received systemic treatment. Of those treated, time on treatment was slightly longer and TCOC was slightly higher. These effects were seen to the same extent in all examined sociodemographic groups. The pandemic certainly impacted the systemic treatment of cancer but to a modest degree.

SIOG2023-5-P-349 - Medication adherence in older adults receiving systemic treatment for cancer.

SIOG2023-5-P-349 - Medication adherence in older adults receiving systemic treatment for cancer.

A multisite initiative to increase medical oncologists’ utilization of clinical pathways in the selection of systemic cancer treatment.

575 Background: The Swedish Cancer Institute (SCI) recognizes that quality cancer care is a systemwide commitment. In 2020, SCI implemented ClinicalPath (formerly Via Oncology). The ClinicalPath tool assists in the selection of systemic treatment protocols. The protocols balance considerations of clinical efficacy, safety, toxicities, and cost. National utilization rate for ClinicalPath ranges between 50-70%. In 2021, ClinicalPath monthly utilization by SCI medical oncologists was 56%. This initiative aimed to increase utilization of ClinicalPath by SCI Medical Oncologists, across the three main campuses, to above 70% by the end of 2022. Methods: The Plan Do Study Act framework was used. Utilization was defined as accessing the ClinicalPath tool. Utilization data was abstracted from an Epic Workbench Report that was filtered to reflect practicing SCI medical oncologists and the 25 diagnoses included in ClinicalPath. An introduction email and meeting request was sent to eight Medical Directors. A fishbone diagram was used to identify the potential causes of low utilization. PDSA 1 interventions included 1:1 meeting with each Medical Director to validate baseline data for cascading to their oncologists and encourage engagement. PDSA 2 included monthly “Quality Messages” with oncologists’ monthly utilization rate. In addition, a public recognition of “Most Improved Utilization” from Q1 to Q2 was done by the SCI Executive Medical Director. PDSA 3 focused on wide dissemination of the initiative through presentations that included a link to a “Tips & Tricks for ClinicalPath” video at SCI executive and department meetings. Public recognition of “Top Performers” from Q3 was published in the SCI newsletter. Results: The process measure of 1:1 meeting with Medical Directors was achieved at 100%. During PDSA 1 the outcome measure of monthly utilization rates improved to 71%. The 2nd PDSA cycle yielded a utilization rate of 84%. The 3rd PDSA cycle monthly utilization rate by the end of 2022 was 86%. At the most recent tracking into 2023, the utilization rate showed sustainability with achieved rates of 83%, 80%, 80% for Jan, Feb, March. Conclusions: Engaging the SCI Medical Directors and sharing individual performance data with the medical oncologists was a simple intervention yet yielded a significant improvement in their ClinicalPath utilization rates. Public recognition, along with addressing common barriers through education resulted in further improvement. This approach serves as a model for increasing utilization of a point of care clinical decision tool.

Streamlining chemotherapy prior authorizations: Leveraging resources to cut delays and boost revenue.

573 Background: Prior authorizations (PAs) for systemic cancer treatments are a barrier to timely quality cancer care delivery. The high administrative burden to complete peer to peer’s (P2P) and appeals leads to care delays and revenue losses. At our tertiary academic cancer center, in partnership with our cancer registry and Epic teams, we shifted the clerical work required for PAs from clinicians to certified tumor registrars (CTRs) to increase authorization efficiency and decrease financial losses from denials. Methods: Clinicians place the treatment plan order which goes to the CTR work queue. We leveraged the Epic staging smart form to consolidate and auto-populate common elements needed for PA. The CTRs then complete and validate the form prior to the authorization specialists obtaining the PA. We compared the pre (1/2022-9/2022) and post-implementation (11/2022-5/2023) periods on our primary outcomes: average monthly number of PAs pending review (including P2P, appeals and authorizations requiring clarifying clinical documentation) and average time spent on PAs by the authorization specialists. We compared the same post implementation period to the same time the year before on the financial loss from denied PAs. Analyses were conducted using Welch's t-test. Results: There was an 11% reduction in the average monthly number of PAs pending review (350 vs 313; p=0.27) from pre to post implementation. There was an average improvement of 6 hours spent obtaining a final approval/per authorization (100 vs 106 hours; p=0.64) from pre to post implementation. In addition, there was a trend toward improvement in financial losses from PA denials from Dec 2022 to March 2023 and a cost savings of ~ 7 million dollars from the same time period pre-intervention; p=0.01 (Table). Conclusions: By leveraging the EHR and optimizing existing non-clinical staff workflows, we demonstrated a sustained decrease in the number of ambulatory PAs pending review, time spent on the PAs and significantly decreased financial losses from denials. Future work will include treatment and disease specific optimizations and evaluating the impact on clinician well-being.[Table: see text]

Evolving models of care for ambulatory systemic treatment.

155 Background: Increasing demand for systemic cancer treatment in Ontario, Canada, due to an aging population and therapeutic advances, is compounded by resource shortages and provider burnout heightened by the COVID-19 pandemic. This landscape has led to longer wait times, reduced services, poorer patient experiences, and widened health inequities, particularly impacting marginalized populations. In response, Ontario Health (Cancer Care Ontario) developed recommendations to optimize ambulatory systemic treatment delivery from various perspectives, including patients, providers, cancer programs, and organizations. Methods: Evidence-based recommendations were derived from a targeted literature review, current state surveys, and follow-up interviews across 16 Ontario treatment facilities. Feedback was gathered via focus groups involving patients, families, care partners, and providers. Key informants from cancer agencies in Canada and internationally were consulted through jurisdictional scans. Furthermore, focused discussions with First Nations, Inuit, Métis, urban Indigenous (FNIMUI) communities, Francophone populations, and other equity deserving groups informed the unique needs, experiences, and barriers to care of these groups. Results: Twenty-six recommendations that span various aspects of systemic treatment delivery, including referral processes, scheduling, role integration, patient education, patient and provider experiences, virtual care, and care transitions were developed. Priorities include evidence-based, person-centred care, timely access, effective collaboration, provider well-being, and technological innovation. Additionally, we highlight partnerships with FNIMUI communities, and other equity-deserving groups as strategies to address additional barriers to care. Conclusions: These recommendations strive to address challenges faced by healthcare providers and patients, ensure equitable access to care, and improve provider well-being. Engagement with FNIMUI communities and other equity-deserving groups influenced these recommendations, emphasizing the need for system-level oversight and investment to realize equitable and sustainable service delivery province-wide.

Toxicities and Quality of Life during Cancer Treatment in Advanced Solid Tumors.

The purpose of the study was to identify subgroups of advanced cancer patients who experienced grade 3-4 toxicities as reported by their oncologists as well as identify the demographic, clinical, and treatment symptom characteristics as well as QoL outcomes associated with distinct profiles of each patient. A prospective, multicenter, observational study was conducted with advanced cancer patients of 15 different hospitals across Spain. After three months of systemic cancer treatment, participants completed questionnaires that evaluated psychological distress (BSI-18), quality of life (EORTC QLQ-C30) and fatigue (FAS). The most common tumor sites for the 557 cancer patients with a mean age of 65 years were bronchopulmonary, digestive, and pancreas. Overall, 19% of patients experienced high-grade toxicities (grade 3-4) during treatment. Patients with recurrent advanced cancer, with non-adenocarcinoma cancer, undergoing chemotherapy, and a showing deteriorated baseline status (ECOG > 1) were more likely to experience higher toxicity. Patients who experienced grade 3-4 toxicities during cancer treatment had their treatment suspended in 59% of the cases. Additionally, 87% of the patients had a dose adjustment or a cycle delayed in their treatment due to a high risk of dying during treatment. Future research should focus on identifying interventions to reduce high-grade toxicities and improve quality of life in cancer patients.

German, Austrian, and Swiss guidelines for systemic treatment of gastric cancer

The updated edition of the German, Austrian and Swiss Guidelines for Systemic Treatment of Gastric Cancer was completed in August 2023, incorporating new evidence that emerged after publication of the previous edition. It consists of a text-based “Diagnosis” part and a “Therapy” part including recommendations and treatment algorithms. The treatment part includes a comprehensive description regarding perioperative and palliative systemic therapy for gastric cancer and summarizes recommended standard of care for surgery and endoscopic resection. The guidelines are based on a literature search and evaluation by a multidisciplinary panel of experts nominated by the hematology and oncology scientific societies of the three involved countries.

Invasive lobular carcinoma of the breast with colonic metastasis: a case series of three patients

BackgroundAlthough metastatic spread of breast cancer to the gastrointestinal tract is very rare, it is more likely to occur in invasive lobular carcinoma (ILC) than in ductal carcinoma. Colonic metastasis is particularly rare, and the treatment strategies for these cases are not clearly defined. Herein, we report three cases of ILC with various abdominal symptoms associated with colonic metastasis.Case presentationCase 1 A 70-year-old female patient with vomiting and melena was referred to our hospital. Endoscopic examination revealed a Dieulafoy ulcer in the rectum and an elevated lesion in the descending colon. She also had two breast nodules, and was diagnosed as ILC with colonic metastasis. Considering her general condition, the best supportive care (BSC) was offered. The patient died 4 months after confirmation of the diagnosis. Case 2 An 80-year-old female patient presented with diarrhea and vomiting. She was diagnosed with ILC with colonic metastasis, and a coloscopy revealed stenosis of the transverse colon with a metastatic lesion. Ileosigmoid bypass surgery was performed for intestinal obstruction, and systemic treatment for breast cancer was initiated. The patient developed peritoneal carcinomatosis and died 1 year and 2 months after surgery. Case 3 A 56-year-old female patient underwent left total mastectomy for ILC, and laparoscopic transverse colectomy was conducted for a colonic lesion 9 years and 2 months after. The diagnosis as colonic metastasis was not confirmed at that time. Two years and 2 months later, torose lesions were detected in the hepatic flexural and descending colon, and histopathological findings indicated that all colon tumors, including the previously resected tumor, were metastatic spread of ILC. Systemic treatment was continued, but the transverse colonic lesion penetrated the abdominal wall, and an abscess formed 2 years and 11 months after the resection. The fistula improved by continuous suction drainage following ileostomy but recurred, and the patient died 3 years and 8 months after colectomy.ConclusionsColonic metastases from breast cancer can trigger various abdominal symptoms, and the prognosis in these cases is generally poor. In selected cases, surgical treatment for abdominal symptoms and subsequent systemic therapy can contribute to a prolonged prognosis.

Systemic treatment for advanced pancreatic cancer.

Pancreatic cancer is a deadly disease with an extremely poor 5-year survival rate due to treatment resistance and late-stage detection. Despite numerous years of research and pharmaceutical development, these figures have not changed. Treatment options for advanced pancreatic cancer are still limited. This illness is typically detected at a late stage, making curative surgical resection impossible. Chemotherapy is the most commonly utilized technique for treating advanced pancreatic cancer but has poor efficacy. Targeted therapy and immunotherapy have made significant progress in many other cancer types and have been proven to have extremely promising possibilities; these therapies also hold promise for pancreatic cancer. There is an urgent need for research into targeted treatment, immunotherapy, and cancer vaccines. In this review, we emphasize the foundational findings that have fueled the therapeutic strategy for advanced pancreatic cancer. We also address current advancements in targeted therapy, immunotherapy, and cancer vaccines, all of which continue to improve the clinical outcome of advanced pancreatic cancer. We believe that clinical translation of these novel treatments will improve the low survival rate of this deadly disease.

The Japanese Breast Cancer Society Clinical Practice Guidelines for systemic treatment of breast cancer, 2022 edition

The Japanese Breast Cancer Society (JBCS) Clinical Practice Guidelines for systemic treatment of breast cancer were updated to the 2022 edition through a process started in 2018. The updated guidelines consist of 12 background questions (BQs), 33 clinical questions (CQs), and 20 future research questions (FRQs). Multiple outcomes including efficacy and safety were selected in each CQ, and then quantitative and qualitative systematic reviews were conducted to determine the strength of evidence and strength of recommendation, which was finally determined through a voting process among designated committee members. Here, we describe eight selected CQs as important updates from the previous guidelines, including novel practice-changing updates, and recommendations based on evidence that has emerged specifically from Japanese clinical trials.

Coping strategies as mediators of uncertainty and psychological distress in patients with advanced cancer.

Uncertainty in the context of advanced cancer diagnosis often incurs significant psychological distress. The aims were to evaluate the incidence of psychological distress upon diagnosis of advanced cancer and to analyze whether the relationship between illness uncertainty and psychological distress can be mediated by coping strategies. A multicenter, prospective, cross-sectional study was conducted in 15 medical oncology departments across Spain. Individuals with unresectable advanced cancer completed questionnaires on uncertainty (Michel Uncertainty of Illness Scale, coping strategies (Mental Adjustment to Cancer, M-MAC), and psychological distress (Brief Symptom Inventory, BSI-18) after the diagnostic and treatment appointment and before beginning systemic cancer treatment. 841 patients eligible for systemic treatment with palliative intent were included between February 2020 and April 2022. A total of 71.7% had clinically significant levels of psychological distress. Univariate analyses identified that the groups with less psychological distress were male (ηp2 =0.016), married (ηp2 =0.006), and had a better performance status (ηp2 =0.007). The most widely used coping strategies were positive attitude and cognitive avoidance. A positive relationship was found between uncertainty, coping strategies, and psychological distress (p<0.05). Participants who responded with anxious preoccupation suffered more helplessness and psychological distress, while those who responded with cognitive avoidance displayed greater positive attitude and lesser psychological distress. Patients with newly diagnosed unresectable advanced cancer frequently experience psychological distress in the face of uncertainty, potentially influenced by coping strategies like cognitive avoidance.

CN62 Experiences and need of cancer patients with cardiovascular problems during systemic cancer treatment: Results of a qualitative study

CN62 Experiences and need of cancer patients with cardiovascular problems during systemic cancer treatment: Results of a qualitative study

2109P Vitamin A, D and E levels in patients with solid tumors undergoing palliative systemic cancer treatment

2109P Vitamin A, D and E levels in patients with solid tumors undergoing palliative systemic cancer treatment

2051P E-PRO within comprehensive companion program for patients undergoing systemic cancer treatment to reduce emergency visits and inpatient admission in a Peruvian institution

2051P E-PRO within comprehensive companion program for patients undergoing systemic cancer treatment to reduce emergency visits and inpatient admission in a Peruvian institution

Progression-Directed Therapy in Oligoprogressive Castration-Refractory Prostate Cancer: Results of the Prospective Single-Arm Phase II MEDCARE Trial

Next-line systemic treatment (NEST) for progressive metastatic castration-refractory prostate cancer (mCRPC) is associated with significant costs and non-negligible toxicity. For oligoprogressive (OP) disease, defined as the appearance of up to 3 progressive and/or new lesions and/or local recurrence on conventional imaging, progression-directed therapy (PDT) may prolong the efficacy of ongoing systemic therapy and delay initiation of NEST. To investigate whether PDT could postpone NEST in patients with OP mCRPC in the prospective, single-arm, monocentric MEDCARE trial. We enrolled patients with OP mCRPC while on ongoing treatment with androgen deprivation therapy (ADT), with or without an androgen receptor-targeted agent (ARTA). Progression was detected with conventional imaging (bone scan and CT of MRI). A history of docetaxel treatment was allowed. All progressive lesions had to be treatable with PDT, either (stereotactic body) radiation therapy ((SB)RT) or metastasectomy. Repeated PDT was allowed at the time of further oligoprogression. The primary endpoint was NEST-free survival. Secondary outcomes of the trial included clinical progression-free survival (cPFS), prostate cancer specific survival (PCSS), overall survival (OS) as well as acute and late toxicity. Between January 2020 and January 2021, 20 patients were included. Median age was 74 years. Median PSA level and PSA doubling at the time of inclusion were 4 ng/ml (IQR 2-11) and 4 months (IQR 3-5), respectively. Median follow-up was 28 months (IQR 5-33). A total of 31 lesions were treated with SBRT to 22.5-30 Gy in 3-5 fractions of 7.5-10 Gy. 11, 7 and 2 patients had one, two and three concurrent lesions respectively. At the time of inclusion, sixteen patients had bone metastases, two patients had only lymph node metastases, one patient a liver metastasis and one patient had local recurrence. If the primary tumor had not yet been treated, local radiotherapy to the prostate was given (n = 5). Five patients received repeated PDT for oligoprogression. Ongoing therapy at time of inclusion was ADT (n = 8) alone or ADT + ARTA (n = 12). The number of different systemic treatment lines received before inclusion was one, two and three for 5, 13 and 2 patients respectively. The median NEST-free survival was 17 months (95% CI: 9-25). The median cPFS was 6 months (95% CI: 5-7). The median PCSS was not reached while the median OS was 29 months (95% CI, 28-30). At last follow-up, 9 patients had died, of whom 6 due to progressive prostate cancer and 3 due to rapid progression of a second primary tumor (small cell lung cancer, leiomyosarcoma and acute myeloid leukemia). PDT was well tolerated with no acute nor late grade ≥3 toxicity. In OP mCRPC patients, PDT postpones the need for NEST for almost 1.5 years without inducing severe toxicity.

Systemic treatment of advanced and metastatic urothelial cancer: The landscape in Australia.

The 5-year survival rate of metastatic urothelial carcinoma (mUC) is estimated to be as low as 5%. Currently, systemic platinum-based chemotherapy followed by avelumab maintenance therapy is the only first-line treatment for mUC that has an overall survival benefit. Cisplatin-based chemotherapy (usually in combination with gemcitabine) is the preferred treatment but carboplatin is substituted where contraindications to cisplatin exist. Treatment with immune checkpoint inhibitors, antibody-drug conjugates, and kinase inhibitors has not yet demonstrated superiority to chemotherapy as first-line therapy and remains investigational in this setting. A recent media release indicates that chemotherapy plus nivolumab gives an OS advantage as first-line treatment but results of this study have not yet been made public. Pembrolizumab remains an option in those having primary progression on first-line chemotherapy or within 12 months of neoadjuvant chemotherapy. The antibody-drug conjugate, enfortumab vedotin has TGA approval for patients whose cancer has progressed following chemotherapy and immunotherapy and has just received a positive Pharmaceutical Benefits Scheme recommendation. The use of molecular screens for somatic genetic mutations, gene amplifications, and protein expression is expanding as drugs that target such abnormalities show promise. However, despite these advances, a substantial proportion of patients with mUC have significant barriers to receiving any treatment, including advancing age, frailty, and comorbidities, and less toxic, effective therapies are needed.

Evaluation of factors predicting the benefit from systemic oncological treatment for severely ill hospitalized patients: a retrospective study

BackgroundPatients with cancer in the disease’s end-stage with poor performance represent a challenging clinical scenario, as they have high chance of a fatal outcome due to clinical conditions, oncological emergencies, and/or metastatic disease. This study examines the factors predicting the potential benefit of “urgent” chemotherapy during hospitalization in this setting, thus addressing a research gap.MethodsThis retrospective observational study was conducted in the largest cancer center in the outskirts of São Paulo. It identified factors predicting the benefit from antineoplastic treatment in severe in-hospital patients admitted during 2019–2020, considering post-chemotherapy survival time as the main dependent variable. Data were retrieved from medical records. All patients aged ≥ 18 years, with an ECOG-PS score ≥ 2, and undergoing non-elective systemic cancer treatment were included.ResultsThis study evaluated 204 records, of which 89 were included in the final analysis. A statistically significant association with the worse outcome (death within 30 days of chemotherapy) was found with higher ECOG performance status; chemotherapy dose reduction; lower values of serum albumin, hemoglobin, and creatinine clearance; and higher values of leukocytes, neutrophils, direct bilirubin, urea, and C-reactive protein. In the multivariate analysis, only albumin remained statistically associated with the outcome (hazard ratio = 0.35; confidence interval: 0.14, 0.90; p = 0.034).ConclusionsSerum albumin and other clinical and laboratory variables might be associated with early post-treatment deaths in patients with cancer. The study data might help guide the decision to administer systemic treatment in this scenario and manage critically ill patients. This study adds to our knowledge of the factors predicting the objective benefits from “heroic” or “urgent” chemotherapy for hospitalized and severely ill patients with cancer.

Coencapsulation of Gemcitabine and Thymoquinone in Citrem-Phosphatidylcholine Hexosome Nanocarriers Improves In Vitro Cellular Uptake in Breast Cancer Cells.

Lyotropic liquid crystalline nanoassemblies (LLCNs) are internally self-assembled (ISA)-somes formed by amphiphilic molecules in a mixture comprising a lipid, stabilizer, and/or surfactant and aqueous media/dispersant. LLCNs are unique nanoassemblies with versatile applications in a wide range of biomedical functions. However, they comprise a nanosystem that is yet to be fully explored for targeted systemic treatment of breast cancer. In this study, LLCNs proposed for gemcitabine and thymoquinone (Gem-TQ) co-delivery were prepared from soy phosphatidylcholine (SPC), phytantriol (PHYT), or glycerol monostearate (MYVR) in optimized ratios containing a component of citric and fatty acid ester-based emulsifier (Grinsted citrem) or a triblock copolymer, Pluronic F127 (F127). Hydrodynamic particle sizes determined were below 400 nm (ranged between 96 and 365 nm), and the series of nanoformulations displayed negative surface charge. Nonlamellar phases identified by small-angle X-ray scattering (SAXS) profiles comprise the hexagonal, cubic, and micellar phases. In addition, high entrapment efficiency that accounted for 98.3 ± 0.1% of Gem and 99.5 ± 0.1% of TQ encapsulated was demonstrated by the coloaded nanocarrier system, SPC/citrem/Gem-TQ hexosomes. Low cytotoxicity of SPC-citrem hexosomes was demonstrated in MCF10A cells consistent with hemo- and biocompatibility observed in zebrafish (Danio rerio) embryos for up to 96 h postfertilization (hpf). SPC/citrem/Gem-TQ hexosomes demonstrated IC50 of 24.7 ± 4.2 μM in MCF7 breast cancer cells following a 24 h treatment period with the moderately synergistic interaction between Gem and TQ retained (CI = 0.84). Taken together, biocompatible SPC/citrem/Gem-TQ hexosomes can be further developed as a multifunctional therapeutic nanodelivery approach, plausible for targeting breast cancer cells by incorporation of targeting ligands.