1.Assessment of out-of-pocket expenditure of HER2-positive breast cancer patients in a tertiary cancer center and private clinics in the Philippines.
Karen Anjela M. Mondragon ; Rich Ericson C. King ; Lance Isidore G. Catedral ; Frederic Ivan L. Ting ; Rogelio N. Velasco ; Aylmer Rex B. Hernandez ; Irisyl Orolfo Real ; Lia M. Palileo-Villanueva
Acta Medica Philippina 2026;60(8):7-22
BACKGROUND
The survival advantage of HER2-positive breast cancer from targeted treatment is commonly undermined by catastrophic health expenditure (CHE), particularly in resource-limited areas. Recognizing that financial catastrophe leads to non-adherence to treatment and dissaving practices, we examined the out-of-pocket (OOP) expenses of patients with HER2-positive breast cancer.
OBJECTIVEThe study aimed to estimate the median total per-cycle out-of-pocket expenditure of HER2-positive breast cancer treatment from the patient perspective, in public and private clinics, evaluate the association of catastrophic health expenditure with non-adherence to treatment, and describe dissaving practices.
METHODSThis was a cross-sectional micro-costing analysis of the treatment of HER2-positive breast cancer from the patient perspective from a tertiary cancer center and select private clinics in the Philippines. Random sampling of patients with HER2-positive breast cancer was done. Using a validated questionnaire, a guided interview was administered. Catastrophic health expenditure was estimated as having OOP of >20% of the household income. OOP costs were assessed retrospectively from the time of confirmed HER2 diagnosis up to the date of survey, while household income referred to the corresponding period. The proportion of patients experiencing catastrophic health expenditure was computed. Fisher's exact was used to assess for any association between CHE and non-adherence to treatment. Descriptive statistics were used to report dissaving practices. All statistical analyses were performed using Stata analytical software version 12.
RESULTSA total of 101 patients participated in the study. The mean age of participants from the tertiary cancer center and private clinics were 52 and 58 years old respectively. Patients from the private clinics had a median total OOP expenditure of PhP 54,737.06 (IQR = PhP 102,670.00), compared with patients from tertiary cancer center who had a median total OOP expenditure of PhP 13,920.66 (IQR = PhP 20,830.00). The overall prevalence of CHE (90.9%, 95% CI 0.81, 0.95) and nonadherence to treatment with trastuzumab (79%, 95% CI 0.70, 0.87) were high, and similar in both groups. A number of dissaving practices such as resignation from work, borrowing money from friends, selling assets were observed.
CONCLUSIONThe high rate of CHE and treatment delay among patients with HER2-positive breast cancer were not addressed by the existing cancer programs. Most OOP expenditure was for trastuzumab. Current cancer support programs have potential to address the financial impact of their treatment.
Human ; Therapeutics ; Survival ; Patients ; Neoplasms ; Philippines ; Health Expenditures ; Breast Neoplasms
2.Adenoid cystic carcinoma of the breast: A case report.
Aveline Marie D. Ylanan ; Miriam Joy C. Calaguas
Acta Medica Philippina 2026;60(7):107-111
Adenoid cystic carcinoma (ACC) is a rare subtype of invasive breast cancer, occurring in <0.1% of all malignant breast tumors. Though majority are triple-negative, ACC of the breast has good prognosis with a low incidence of regional and distant metastases.
A 45-year-old premenopausal female presented with a 5-month history of a gradually enlarging mass on her left breast. After core needle biopsy and subsequent metastatic work-up, she underwent total mastectomy with sentinel lymph node biopsy. Final histopathology showed adenoid cystic carcinoma, 2.1 cm in size and no lymph nodes positive for tumor. She has completed adjuvant radiotherapy of 50 Gy to the chestwall, and is currently well after 6 years of follow-up.
Surgery with either lumpectomy or mastectomy has been established as the mainstay of treatment of adenoid cystic carcinoma of the breast, but the use of adjuvant radiotherapy (RT) and chemotherapy has not been established. While adjuvant RT has been shown to improve cause-specific and overall survival following breast-conserving surgery, its indications after a mastectomy are not as well-defined. The decision to administer adjuvant RT was based on the current evidence indicating the advantages of adjuvant treatment for breast carcinomas, lack of survival difference between invasive ductal carcinomas and adenoid cystic carcinomas, indications for post-mastectomy RT in a retrospective Rare Cancer Network study, and reported incidences of local recurrences following mastectomy alone: 21.4% and 22.2%.
Our patient with adenoid cystic carcinoma of the breast, treated with surgery and adjuvant radiation therapy, showed favorable outcomes after 6 years.
Human ; Female ; Middle Aged: 45-64 Yrs Old ; Carcinoma, Adenoid Cystic ; Breast Neoplasms
3.Concordance between the Ki-67 and proliferation index of molecular signature tests (MammaPrint and OncotypeDX) among Filipino patients in two St. Luke’s Medical Center facilities: An analytical cross-sectional study.
Rebecca NAGTALON ; Manuelito MADRID
Philippine Journal of Pathology 2026;11(1):20-29
BACKGROUND
Breast cancer remains a leading malignancy among women globally. In addition to established factors like histopathology, hormone receptor status, and lymph node involvement, tools such as immunohistochemistry and molecular tests have been developed to assess tumor behavior and recurrence risk.
OBJECTIVEThis study investigates the concordance between the Ki-67 proliferation index measured by immunohistochemistry and the recurrence risk scores obtained from molecular genomic testing in patients with invasive breast cancer.
METHODOLOGYThis cross-sectional study included patients with invasive breast carcinoma at St. Luke’s Medical Center from 2019 to 2024, who underwent biopsy or mastectomy, with hormone status and Ki-67 index assessed by immunohistochemistry. All patients also had molecular genomic testing using either MammaPrint or OncotypeDX. Concordance between Ki-67 and the genomic recurrence risk score was evaluated using Kappa statistics, and results were further analyzed according to clinical risk and hormone receptor status.
RESULTSFifty-eight (58) patients met the study criteria. Most had grade 2, hormone receptor-positive, HER2-negative, and node-negative tumors, with high clinical risk based on Adjuvant! Online criteria (adapted from the MINDACT trial). The agreement between categorical Ki-67 and molecular recurrence risk was only fair: 66.7% for MammaPrint (kappa=0.35) and 60% for OncotypeDX (kappa = 0.29) using a 30% Ki-67 cutoff.
CONCLUSIONThere is a fair agreement between Ki-67 and the molecular genomic tests. These findings are consistent with prior studies reporting weak to moderate association. Despite the limited sample size, Ki-67 remains a practical and accessible risk stratification tool, particularly where genomic assays are unavailable. The study supports integrating Ki-67 with clinicopathologic and genomic data to guide therapy, reflecting current best-practice recommendations.
Human ; Female ; Breast Neoplasms
4.Association between single nucleotide polymorphisms of CYP19A1 gene at rs700519 and rs4646 loci and risk of Breast cancer.
Xiaoying HE ; Sheng XU ; Ruijuan HENG ; Yong ZHOU ; Pan QI ; Yu SONG
Chinese Journal of Medical Genetics 2025;42(5):587-591
OBJECTIVE:
To assess the association of single nucleotide polymorphisms of rs700519 and rs4646 loci of cytochrome P450 19A1 (CYP19A1) gene with risk of Breast cancer.
METHODS:
Two hundred patients with breast cancer treated at Xinxiang Central Hospital between January 2019 and January 2024 and 100 healthy individuals were enrolled as the study group and control group, respectively. The genotypes of the CYP19A1 gene at the rs700519 and rs4646 loci were determined by direct sequencing. The general data, distribution of CYP19A1 genotypes and alleles were compared between the two groups. This study has been approved by the Medical Ethics Committee of Xinxiang Central Hospital (Ethics No. 2021-182).
RESULTS:
No significant difference was found in age, body mass index, times of conception and proportion of menopause between the two groups (P > 0.05). The frequencies of AA genotype and A allele at the rs700519 locus, and the CC genotype and C allele at the rs4646 locus in the study group were significantly higher than those of the control group (P < 0.05). The frequencies of AA genotype at the rs700519 locus and CC genotype at the rs4646 locus in patients with breast cancer at stages III-IV were significantly higher than those at stage I-II (P < 0.05).
CONCLUSION
Polymorphisms of CYP19A1 gene at the rs700519 and rs4646 loci are associated with susceptibility of breast cancer. The AA and CC genotypes at the two loci may increase the risk for breast cancer.
Humans
;
Female
;
Breast Neoplasms/genetics*
;
Aromatase/genetics*
;
Polymorphism, Single Nucleotide/genetics*
;
Middle Aged
;
Genetic Predisposition to Disease
;
Adult
;
Genotype
;
Case-Control Studies
;
Alleles
;
Gene Frequency
;
Risk Factors
;
Aged
5.Clinicopathologic predictors of hormone receptor and HER-2 status of patients with invasive breast carcinoma: A multicenter study
Philippine Journal of Surgical Specialties 2025;80(2):52-52
This study aimed to determine the clinicopathologic predictors of hormone receptor [Estrogen Receptor (ER)/ Progesterone Receptor (PR)] and Her-2/Neu status of patients with breast cancer. The was an analytical, cross-sectional study with a three-year review of breast cancer patients in the three hospitals of Cordillera Consortium. Multinomial logistic regression analysis was used to determine the association of the clinicopathologic variables such as age, sex, time interval to diagnosis, cancer stage, site, focality and laterality of primary tumor, clinical lymph node status, distant metastasis, recurrence, cancer type, histologic grade, tumor size (T stage), lymphovascular invasion and pathologic nodal stage (N stage) with the hormone receptor and HER-2 status. A total of 143 patients were included in this study. The results showed that laterality (p 0.0154), histologic grade (p 0.0004), and tumor size (T stage) (p 0.049) are associated with the molecular subtypes. Luminal A, luminal B and basal-like subtypes were mostly located on the left while Her-2 enriched was mostly right-sided. All well differentiated tumors were luminal A. Luminal A and Luminal B were mostly moderately differentiated. While Her-2 enriched and basal-like were mostly poorly-differentiated type. Only Her2-enriched had T0 or complete disappearance of tumor (Complete Pathologic Response) among those given with neoadjuvant chemotherapy. In this cohort, there was no recorded tumor of ≤2cm under the basal-like. The clinicohistopathologic features of breast cancer such as laterality, histologic grade, and tumor size can be used as an adjunct to predict the molecular biology of invasive breast carcinoma patients.
Breast ; Breast Neoplasms ; Carcinoma ; Receptors, Estrogen ; Receptors, Progesterone
6.Effects of using audiovisual aids (anatomic and surgical videos) in reducing anxiety of patients who will undergo modified radical mastectomy (MRM).
Innah Ma. Therese C. RACADIO ; Minette M. RAMEL ; Ma. Rollene R. RAMOS ; Margaret Corinne U. RAMOS ; Ellen Angele L. RAPACON ; Raymund Gerard D. RAZON ; Bianca Sophia S. REGALA
Journal of Medicine University of Santo Tomas 2025;9(S1):25-33
OBJECTIVES
Patients undergoing modified radical mastectomy (MRM) often experience significant preoperative anxiety. Effective preoperative education could alleviate anxiety and improve patient outcomes. This research aimed to evaluate whether audiovisual aids during preoperative education correlated with decreased anxiety levels among female MRM patients, and it also aimed to investigate if enhanced preoperative education could lead to reduced anxiety and improved postoperative outcomes.
METHODSA randomized controlled trial was conducted comparing anxiety levels in MRM patients receiving audiovisual aids versus verbal instructions. Purposive sampling selected female breast cancer patients scheduled for MRM. Data was collected using pre- and post-intervention questionnaires, and statistical analysis was used to test hypotheses.
RESULTSThere was no significant difference in pre-intervention anxiety levels between the control group (mean = 2.77 ± 0.32) and the experimental group (mean = 2.49 ± 0.27; t = 1.49, p = 0.176), indicating comparable baseline anxiety between groups. Following the intervention, the experimental group exhibited a significant reduction in anxiety (mean = 1.83 ± 0.20) compared to the control group (mean = 2.59 ± 0.16; t = 2.79, p = 0.046). Pearson correlation analysis revealed a moderate negative correlation between the use of audiovisual aids and preoperative anxiety levels (r = –0.643, p = 0.017), suggesting that audiovisual education was significantly associated with reduced preoperative anxiety among patients scheduled for MRM.
DISCUSSIONThe study found that audiovisual aids significantly reduced anxiety levels in the experimental group but had no effect on the control group. This suggested that such interventions could be effective in reducing preoperative anxiety, particularly in females undergoing MRM. However, further research with larger and more diverse samples was needed to confirm these findings and explore influencing factors in clinical settings
CONCLUSIONThe study findings suggested that incorporating audiovisual aids in preoperative education for MRM effectively reduced anxiety levels, warranting further research with larger and more diverse participant groups to validate these results
Human ; Female ; Adult: 25-44 Yrs Old ; Middle Aged: 45-64 Yrs Old ; Audiovisual Aids ; Breast Neoplasms ; Control Groups ; Neoplasms ; Mastectomy, Radical ; Mastectomy, Modified Radical ; Volition ; Female ; Breast ; Acquired Immunodeficiency Syndrome
7.Breast cancer in the Philippines: A financing cost assessment study
Madeleine De rosas-valera ; Julienne Clarize P. Lechuga ; Lourdes Risa S. Yapchiongco ; Necy S. Juat ; Mary Juliet De rosas-labitigan ; Maria Lourdes E. Amarillo ; Leo M. Flores ; Maebel Audrey R. Joaquin ; Adelberto R. Lambinicio
Acta Medica Philippina 2025;59(Early Access 2025):1-9
OBJECTIVES
The aim of the study is to estimate the cost of breast cancer diagnosis, treatment, and management in the Philippines. Specifically, it aims to identify the resource requirements and interventions related to breast cancer diagnosis, treatment, and management, measure resource volumes (number of units), learn to value resource items (unit costs), and determine the total cost of treatment per disease stage.
METHODSThe study covered nine tertiary hospitals, seven of which were government hospitals and two were private hospitals, with all tertiary hospitals providing breast cancer services and accredited by Philippine Health Insurance Corporation (PHIC or PhilHealth) for the Z-Benefit Package. Interventions and services related to breast cancer included radiographic procedures, laboratory and imaging tests, chemotherapy drugs and medications, medical and surgical supplies, surgical rates (for breast surgery), accommodation, staff time and salary/professional fees, and other procedure fees. The study conducted in 2022, examined cost prices of breast cancer interventions and services from stage 1–3B.
Purposive and convenience sampling were used based on PhilHealth accreditation and willingness of hospitals to participate in the study. The study conducted a focus group discussion with oncologists, radiologists, anesthesiologists, and other health care providers to validate the clinical guideline used and to solicit inputs to the costing design, analysis framework, and tools for data collection. Data collection of financial cost information (charge price) was conducted using a set of costing matrices filled out by the various departments of the hospitals. Costs and median rates were calculated across hospitals on diagnostics and imaging tests, surgery costs of both public and private facilities, medical treatment, and radiotherapy.
RESULTSBreast MRI, Breast Panel, and Chest CT Scan are the top 3 most expensive diagnostic procedures ranging from PhP 8,102.00 to PhP 9,800.00 per procedure. Surgical procedures for breast cancer at private hospitals and public hospitals showed huge differences in costs. The cost of a cycle of chemotherapy ranges from PhP 596.70 to PhP 3,700.00 per session, while the cost of targeted therapy can cost up to PhP 46,394.21 per session. A year of hormone therapy ranges from PhP 3,276.00 with the use of Tamoxifen, and up to PhP 68,284.00 with Goserelin. Aromatase inhibitors such as Anastrozole and Letrozole cost from PhP 18,000 to PhP 36,000, respectively. Multiple cycles depending on the diagnosis are prescribed per patient and used in combination with other chemotherapy medications or other therapies such as targeted therapy and hormone therapy are usually taken daily up to 5 to 10 years. Conventional radiotherapy can cost up to PhP 88,150.00 covering 28 sessions, CT simulation, and CT planning.
CONCLUSIONThis cost study provides relevant information and better perspective on benefit development for the PHIC, policy development for Department of Health on where and how to focus their support for the patient’s financial preparedness to address medical and f inancial catastrophes.
PhilHealth needs to guide the health care providers of their costing method and to develop their own integrated, interoperable, and comprehensive cost data library.
It recommends that the government allocate budget and cover for screening and assessment for earlier stage diagnosis of patients and lower health expenditure costs on cancer treatment.
Human ; Breast Neoplasms ; Drug Therapy ; Chemotherapy ; Mastectomy ; Radiotherapy ; Radiation Therapy
8.The magnitude of delay in non-metastatic breast cancer treatment in a Tertiary Hospital: An analysis from 2012 to 2018
Rogelio N. Velasco jr. ; Mark M. Ando ; Mark Anthony U. Javelosa ; Rich Ericson C. King ; Karen Anjela M. Mondragon ; Harold Nathan C. Tan ; Corazon A. Ngelangel ; Irisyl O. Real
Acta Medica Philippina 2025;59(8):45-51
BACKGROUND AND OBJECTIVE
The burden of treatment delay in breast cancer is high, especially among developing countries. Despite adversely affecting morbidity and mortality, treatment delay remains unexplored in the Philippines. This study aimed to determine treatment delays among breast cancer patients in a tertiary hospital during surgery, neoadjuvant chemotherapy, and adjuvant chemotherapy, and to identify predictors of delay.
METHODSA cross-sectional study was conducted among breast cancer patients seen between January 1, 2012 to December 31, 2018. The following outcomes were investigated: ≥90 days from initial diagnosis to surgery, ≥8 weeks from diagnosis to initiation of neoadjuvant chemotherapy, and >120 days from diagnosis to initiation of adjuvant chemotherapy. Summary statistics were reported as percent for categorical data and as mean for continuous data. The individual correlations were performed using Chi-square for qualitative data and t-test for quantitative data while predictors were determined through logistic regression.
RESULTSA total of 324 patients were included in this study. The majority of the patients were less than 65 years old living in urban areas. More than half of the patients were overweight or obese, hypertensive, and diabetic. The following delays were observed: 61.1% (n = 198) with any type of delay, 23.8% (n = 53) with delay in surgery, 53.8% (n = 120) with delay in adjuvant chemotherapy, and 74.3% (n = 75) with delay in neoadjuvant chemotherapy. The patients noted to have any type of delay were more likely to be hypertensive (p = 0.046) and residing in urban areas (p = 0.041). There were no differences in the distribution of age, body mass index, and presence of co-morbid conditions such as hypertension, diabetes mellitus, coronary artery disease, and heart failure among those with any form of delay compared with no delay.
CONCLUSIONThe present study shows the presence of treatment delay among breast cancer patients and may be used to enact policy changes to optimize breast cancer care delivery. Further studies may be done to identify other factors affecting these delays and policy changes are recommended to address these gaps in surgery and chemotherapy administration among breast cancer patients.
Breast Neoplasms ; Breast Cancer ; Quality Of Health Care ; Treatment Delay
9.Predictive importance of weight during neoadjuvant chemotherapy on pathologic response and survival outcomes in patients with breast cancer
Philippine Journal of Internal Medicine 2025;63(3):89-97
OBJECTIVES
The influence of weight change on the response to neoadjuvant chemotherapy (NAC) among adult Filipino patients with breast cancer remains unclear. Currently, there has been increasing evidence that weight gain during NAC is associated with increased recurrence risk and decreased survival. This study aimed to investigate this relationship and identify significant predictors of pathologic complete response (pCR), overall survival (OS) and disease-free survival (DFS).
METHODSThis is a retrospective study using data from 52 female patients who received NAC for stage II or III breast cancer and had complete records of weight before and after NAC. Significant predictors of pCR such as host factors and tumor characteristics and associations between weight change and pCR, OS and DFS were examined using univariate and multivariable logistic regression analyses.
RESULTSThe average weight of all patients before NAC was 57.0 kg while the average weight of all patients after NAC was 59.5 kg. The average BMI of all patients before NAC was 25.8 kg/m2. In total, 29 patients (55.8%) were classified in the overweight/obese (OW/OB) group, and the rest were classified in the normal weight/underweight (NW/UW) group. The pCR rate was 51.3% in the OW/OB group versus 48.7% in the NW/UW group (p = 0.11). Initial BMI was a significant factor for achieving pCR (hazard ratio, 3.85; 95% confidence interval [CI], 1.72-8.60, p = 0.001), suggesting that a higher initial BMI was associated with an increased likelihood of achieving pCR. Initial BMI was also an independent prognostic factor for OS (p = 0.0006) and DFS (p = 0.0005). On the other hand, no significant correlation was seen between pCR rates as well as OFS and DFS (p = 0.0551) among patients whose weight changed during the course of treatment.
CONCLUSIONThese findings suggest that while initial weight may significantly predict pCR rates and affect DFS and OS, weight change during treatment may not be as influential. Further research is needed to validate these findings in more diverse and larger patient populations.
Human ; Breast Neoplasms ; Neoadjuvant Chemotherapy ; Neoadjuvant Therapy ; Pathologic Complete Response ; Prognostic Factors ; Prognosis
10.Breast cancer in the Philippines: A financing cost assessment study.
Madeleine DE ROSAS-VALERA ; Julienne Clarize P. LECHUGA ; Lourdes Risa S. YAPCHIONGCO ; Necy S. JUAT ; Mary Juliet DE ROSAS-LABITIGAN ; Maria Lourdes E. AMARILLO ; Leo M. FLORES ; Maebel Audrey R. JOAQUIN ; Adelberto R. LAMBINICIO
Acta Medica Philippina 2025;59(17):7-15
OBJECTIVES
The aim of the study is to estimate the cost of breast cancer diagnosis, treatment, and management in the Philippines. Specifically, it aims to identify the resource requirements and interventions related to breast cancer diagnosis, treatment, and management, measure resource volumes (number of units), learn to value resource items (unit costs), and determine the total cost of treatment per disease stage.
METHODSThe study covered nine tertiary hospitals, seven of which were government hospitals and two were private hospitals, with all tertiary hospitals providing breast cancer services and accredited by Philippine Health Insurance Corporation (PHIC or PhilHealth) for the Z-Benefit Package. Interventions and services related to breast cancer included radiographic procedures, laboratory and imaging tests, chemotherapy drugs and medications, medical and surgical supplies, surgical rates (for breast surgery), accommodation, staff time and salary/professional fees, and other procedure fees. The study conducted in 2022, examined cost prices of breast cancer interventions and services from stage 1–3B.
Purposive and convenience sampling were used based on PhilHealth accreditation and willingness of hospitals to participate in the study. The study conducted a focus group discussion with oncologists, radiologists, anesthesiologists, and other health care providers to validate the clinical guideline used and to solicit inputs to the costing design, analysis framework, and tools for data collection. Data collection of financial cost information (charge price) was conducted using a set of costing matrices filled out by the various departments of the hospitals. Costs and median rates were calculated across hospitals on diagnostics and imaging tests, surgery costs of both public and private facilities, medical treatment, and radiotherapy.
RESULTSBreast MRI, Breast Panel, and Chest CT Scan are the top 3 most expensive diagnostic procedures ranging from PhP 8,102.00 to PhP 9,800.00 per procedure. Surgical procedures for breast cancer at private hospitals and public hospitals showed huge differences in costs. The cost of a cycle of chemotherapy ranges from PhP 596.70 to PhP 3,700.00 per session, while the cost of targeted therapy can cost up to PhP 46,394.21 per session. A year of hormone therapy ranges from PhP 3,276.00 with the use of Tamoxifen, and up to PhP 68,284.00 with Goserelin. Aromatase inhibitors such as Anastrozole and Letrozole cost from PhP 18,000 to PhP 36,000, respectively. Multiple cycles depending on the diagnosis are prescribed per patient and used in combination with other chemotherapy medications or other therapies such as targeted therapy and hormone therapy are usually taken daily up to 5 to 10 years. Conventional radiotherapy can cost up to PhP 88,150.00 covering 28 sessions, CT simulation, and CT planning.
CONCLUSIONThis cost study provides relevant information and better perspective on benefit development for the PHIC, policy development for Department of Health on where and how to focus their support for the patient’s financial preparedness to address medical and f inancial catastrophes.
PhilHealth needs to guide the health care providers of their costing method and to develop their own integrated, interoperable, and comprehensive cost data library.
It recommends that the government allocate budget and cover for screening and assessment for earlier stage diagnosis of patients and lower health expenditure costs on cancer treatment.
Human ; Breast Neoplasms ; Drug Therapy ; Chemotherapy ; Mastectomy ; Radiotherapy ; Radiation Therapy


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