ErbB2+ metastatic breast cancer treatment after progression on trastuzumab: a cost-effectiveness analysis for a developing country

Net costs of breast cancer in Colombia: a cost-of-illness study based on administrative claims databases

BACKGROUND

Breast Cancer (BC) is associated with substantial costs of healthcare; however, real-world data regarding these costs in Colombia is scarce. The contributory regime provides healthcare services to formal workers and their dependents and covers almost half of the population in Colombia. This study aims to describe the net costs of healthcare in women with BC covered by the contributory regime in Colombia in 2019 from the perspective of the Colombian Health System.

METHODS

The main data source was the Capitation Sufficiency Database, an administrative database that contains patient-level data on consumption of services included in the National Formulary (PBS, in Spanish Plan de Beneficios en Salud). Data on consumption of services not included in the PBS (non-PBS) were calculated using aggregated data from MIPRES database. All direct costs incurred by prevalent cases of BC, from January 1 to December 31, 2019, were included in the analysis. The net costs of the disease were estimated by multiplying the marginal cost and the expected number of cases with BC by region and age group. Marginal costs were defined as the costs of services delivered to patients with BC after subtracting the expected costs of health services due to age, comorbidity burden or region of residence. To calculate these costs, we used Propensity Score Matching in the main analysis. All costs were expressed in 2019 international dollars. Productivity losses, transportation expenses, and caregiving costs were not included.

RESULTS

A total of 46,148 patients with BC were identified. Total net costs were $387 million (95% CI $377 to $396 million), 60% associated with non-PBS services. Marginal costs were $8,366 (95% Confidence Interval $8,170 to $8,573), with substantial variations between regions age groups (from $3,919 for older patients in the Amazonia region to $10,070 for younger patients in the Pacific region). The costs for PBS services were higher for ambulatory services and for patients who died during 2020.

CONCLUSIONS

BC imposes a substantial economic burden for the Colombian Health System with important variations in net costs between regions and age groups. Patients near death and ambulatory services were associated with higher costs of healthcare.

Economic Evaluations of Breast Cancer Care in Low- and Middle-Income Countries: A Scoping Review

BACKGROUND

Understanding the cost of delivering breast cancer (BC) care in low- and middle-income countries (LMICs) is critical to guide effective care delivery strategies. This scoping review summarizes the scope of literature on the costs of BC care in LMICs and characterizes the methodological approaches of these economic evaluations.

MATERIALS AND METHODS

A systematic literature search was performed in five databases and gray literature up to March 2020. Studies were screened to identify original articles that included a cost outcome for BC diagnosis or treatment in an LMIC. Two independent reviewers assessed articles for eligibility. Data related to study characteristics and methodology were extracted. Study quality was assessed using the Drummond et al. checklist.

RESULTS

Ninety-one articles across 38 countries were included. The majority (73%) of studies were published between 2013 and 2020. Low-income countries (2%) and countries in Sub-Saharan Africa (9%) were grossly underrepresented. The majority of studies (60%) used a health care system perspective. Time horizon was not reported in 30 studies (33%). Of the 33 studies that estimated the cost of multiple steps in the BC care pathway, the majority (73%) were of high quality, but studies varied in their inclusion of nonmedical direct and indirect costs.

CONCLUSION

There has been substantial growth in the number of BC economic evaluations in LMICs in the past decade, but there remain limited data from low-income countries, especially those in Sub-Saharan Africa. BC economic evaluations should be prioritized in these countries. Use of existing frameworks for economic evaluations may help achieve comparable, transparent costing analyses.

IMPLICATIONS FOR PRACTICE

There has been substantial growth in the number of breast cancer economic evaluations in low- and middle-income countries (LMICs) in the past decade, but there remain limited data from low-income countries. Breast cancer economic evaluations should be prioritized in low-income countries and in Sub-Saharan Africa. Researchers should strive to use and report a costing perspective and time horizon that captures all costs relevant to the study objective, including those such as direct nonmedical and indirect costs. Use of existing frameworks for economic evaluations in LMICs may help achieve comparable, transparent costing analyses in order to guide breast cancer control strategies.

Direct Medical Costs, Productivity Loss Costs and Out-Of-Pocket Expenditures in Women with Breast Cancer in Latin America and the Caribbean: A Systematic Review

OBJECTIVE

Our objective was to conduct a systematic review of the literature to identify, categorise, assess, and synthesise the healthcare costs of patients with breast cancer (BC) and their relatives in Latin America and the Caribbean (LAC).

METHODS

In December 2020, we searched for published data in PubMed, LILACS, EMBASE, and other sources, including the grey literature. Studies were eligible if they were conducted in LAC and reported the direct medical costs, productivity loss costs, out-of-pocket expenditure, and other costs to patients with BC and their relatives. No restrictions were imposed on the type of BC population (metastatic BC or human epidermal growth factor receptor 2-positive/negative BC, among others). We summarised the characteristics and methodological approach of each study and the healthcare costs by cancer stage. We also developed and applied an original ad hoc instrument to assess the quality of the cost estimation studies.

RESULTS

We identified 2725 references and 63 included studies. In total, 79.3% of the studies solely reported direct medical costs and five solely reported costs to patients and their relatives. Only 14.3% of the studies were classified as of high quality. The pooled weighted average direct medical cost per patient-year (year 2020 international dollars [I$]) by BC stage was I$13,179 for stage I, I$15,556 for stage II, I$23,444 for stage III, and I$28,910 for stage IV.

CONCLUSION

This review provides the first synthesis of BC costs in LAC. Our findings show few high-quality costing studies in BC and a gap in the literature measuring costs to patients and their relatives. The high costs associated with the advanced stages of BC call into question the affordability of treatments and their accessibility for patients. Registered in PROSPERO (CRD42018106835).