ASHWINI & Co. ARUNACHALAM

Dr. ASHWINI & Co. ARUNACHALAM

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Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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27 August 2018 in PLOS ONE
Verified
Journal Article
Open access
PDF file
DLDae Ho Lee
Dae Ho Lee
MTMing Tsao
Ming Tsao
KKKarl-Otto Kambartel
Karl-Otto Kambartel
HIHiroshi Isobe
Hiroshi Isobe
MHMing-Shyan Huang
Ming-Shyan Huang
JCJavier De Castro-Carpeño
Javier De Castro-Carpeño
The goals of this multinational retrospective study were to describe treatment patterns and survival outcomes by receipt of molecular testing and molecular status of patients with advanced non-small cell lung cancer (NSCLC). This chart review study, conducted in Italy, Spain, Germany, Australia, Japan, Korea, Taiwan, and Brazil, included 1440 patients with newly diagnosed advanced (stage IIIB/IV) NSCLC initiating systemic therapy from January 2011 through June 2013, with follow-up until July 2016. We evaluated treatment patterns and survival by histology, line of therapy, molecular testing, and test results for epidermal growth factor receptor (EGFR) mutation and/or anaplastic lymphoma kinase (ALK) rearrangement. Country-specific data were analyzed descriptively and presented as ranges (lowest to highest country). Overall survival (OS) was estimated using Kaplan-Meier method. Patients with ≥1 molecular test varied from 43% (Brazil) to 85% (Taiwan). Numerically greater proportions of patients who were female, Asian, or never/former-smokers, and those with nonsquamous histology or stage-IV NSCLC, received a test. Testing was common for nonsquamous NSCLC (54%, Brazil, to 91%, Taiwan), with positive EGFR and ALK tests from 17% (Brazil and Spain) to 67% (Taiwan) and from 0% (Brazil) to 60% (Taiwan), respectively. First-line treatment regimens for nonsquamous NSCLC with positive EGFR/ALK tests included targeted therapy for 30% (Germany) to 89% (Japan); with negative/inconclusive test results, platinum-based combinations for 88% (Japan) to 98% (Brazil); and if not tested, platinum-based combinations for 80% (Australia) to 95% (Japan), except in Taiwan, where 44% received single agents. Median OS from first-line therapy initiation was 10.0 (Japan) to 26.7 (Taiwan) months for those tested and 7.6 (Australia/Brazil) to 19.3 (Taiwan) months for those not tested. We observed substantial variation among countries in testing percentages, treatment patterns, and survival outcomes. Efforts to optimize molecular testing rates should be implemented in the context of each country’s health care scenario.

1 September 2018 in Clinical Lung Cancer
Verified
Journal Article
Open access
MBMarisa A. Bittoni
Marisa A. Bittoni
AAASHWINI & Co. ARUNACHALAM
ASHWINI & Co. ARUNACHALAM
HLHaojie Li
Haojie Li
RCRamon Camacho
Ramon Camacho
JHJinghua He
Jinghua He
DCDavid P. Carbone
David P. Carbone
This study sought to better understand real-world treatment patterns, overall and non-small-cell lung cancer (NSCLC)-specific survival, adverse event (AE) occurrence, and economic impact of first-line cancer therapies in Medicare patients. This retrospective cohort study identified patients ≥ 65 years in the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database who received a first-time advanced (stage IV) NSCLC diagnosis from 2007 to 2011, and who received first-line platinum-based chemotherapy from 2007 through mid-2013. First-line regimens, healthcare resource use, occurrence of AEs, and associated costs (2013 US dollars) were analyzed. Median survival was determined using the Kaplan-Meier method. Surprisingly, only 46% of patients (n = 13,472) with stage IIIB/IV NSCLC received systemic therapy, and 5931 received platinum-based therapy. The mean age was 73 years, with 3354 (57%) males; 1489 (25%) had squamous and 4442 (75%) nonsquamous histology. The most common regimens were carboplatin doublets (70%), including carboplatin/paclitaxel (38%), carboplatin/pemetrexed (12%), carboplatin/gemcitabine (11%), and carboplatin/docetaxel (7%). The median overall survival from first-line therapy initiation was 7.2 months (95% confidence interval, 7.0-7.5 months). Dyspnea and anemia were the most common AEs of interest, whereas atypical pneumonia was associated with the greatest AE-related costs (mean, $5044). The mean total per-patient-per-month cost was $11,909, with AE-related costs comprising 9% of total costs. The highest costs and survival were observed for patients treated with carboplatin/pemetrexed and bevacizumab/carboplatin/paclitaxel. These real-world data illustrate the most common first-line regimens by histology, overall survival, AEs, and some of the high AE-related costs of therapy for advanced NSCLC, and provides extremely useful information for clinicians.

1 September 2018 in Clinical Lung Cancer
Verified
Journal Article
Open access
AAASHWINI & Co. ARUNACHALAM
ASHWINI & Co. ARUNACHALAM
HLHaojie Li
Haojie Li
MBMarisa A. Bittoni
Marisa A. Bittoni
RCRamon Camacho
Ramon Camacho
XCXiting Cao
Xiting Cao
DCDavid P. Carbone
David P. Carbone
Real-world data on current treatment practices for non-small-cell lung cancer (NSCLC) are needed to understand the place in therapy and potential economic impact of newer therapies. This retrospective cohort study identified patients ≥ 65 years old in the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database with first-time diagnosis of stage IIIB/IV NSCLC from 2007-2011 who received second-line therapy after first-line platinum-based chemotherapy from 2007 through mid-2013. Second-line regimens, health care resource use, adverse events (AEs), and associated costs were analyzed descriptively. Overall survival was determined by Kaplan-Meier test. Costs were adjusted to 2013 US dollars. We identified 4033 patients with advanced NSCLC who received second-line therapy (47% of those who received first-line platinum-based chemotherapy). Mean (SD) age was 73 (5) years, 2246 (56%) were male; 1134 (28%) and 2899 (72%) had squamous and nonsquamous NSCLC, respectively. The 4 most common second-line regimens were pemetrexed (22%), docetaxel (12%), carboplatin/paclitaxel (11%), and gemcitabine (7%). Median overall survival from second-line therapy initiation was 7.3 months (95% confidence interval, 7.0-7.7). Dyspnea and anemia were the most common AEs of interest, affecting 29% and 26% of patients, respectively; atypical pneumonia was associated with the highest AE-related costs (mean, $5339). The mean total per-patient-per-month cost was $10,885; AE-related per-patient-per-month costs totaled $1036 (10%). Costs were highest for pemetrexed-treated patients. These real-world data illustrate the variety of second-line regimens, poor prognosis, and high cost of second-line chemotherapy for patients with advanced NSCLC treated before the approval of immunotherapies for these patients.

1 March 2018 in BMC Health Services Research
Verified
Journal Article
Open access
PDF file
DLDae Ho Lee
Dae Ho Lee
HIHiroshi Isobe
Hiroshi Isobe
HWHubert Wirtz
Hubert Wirtz
SASabina Bandeira Aleixo
Sabina Bandeira Aleixo
PPPhillip Parente
Phillip Parente
JCJavier De Castro-Carpeño
Javier De Castro-Carpeño
Data are scarce regarding real-world health care resource use (HCRU) for non-small cell lung cancer (NSCLC). An understanding of current clinical practices and HCRU is needed to provide a benchmark for rapidly evolving NSCLC management recommendations and therapeutic options. The objective of this study was to describe real-world HCRU for patients with advanced NSCLC. This multinational, retrospective chart review study was conducted at academic and community oncology sites in Italy, Spain, Germany, Australia, Japan, South Korea, Taiwan, and Brazil. Deidentified data were drawn from medical records of 1440 adults (≥18 years old) who initiated systemic therapy (2011 to mid-2013) for a new, confirmed diagnosis of advanced or metastatic (stage IIIB or IV) NSCLC. We summarized HCRU associated with first and subsequent lines of systemic therapy for advanced/metastatic NSCLC. The proportion of patients who were hospitalized at least once varied by country from 24% in Italy to 81% in Japan during first-line therapy and from 22% in Italy to 84% in Japan during second-line therapy; overall hospitalization frequency was 2.5–11.1 per 100 patient-weeks, depending on country. Emergency visit frequency also varied among countries (overall from 0.3–5.9 per 100 patient-weeks), increasing consistently from first- through third-line therapy in each country. The outpatient setting was the most common setting of resource use. Most patients in the study had multiple outpatient visits in association with each line of therapy (overall from 21.1 to 59.0 outpatient visits per 100 patient-weeks, depending on country). The use of health care resources showed no regular pattern associated with results of tests for activating mutations of the epidermal growth factor receptor (EGFR) gene or anaplastic lymphoma kinase (ALK) gene rearrangements. HCRU varied across countries. These findings suggest differing approaches to the clinical management of advanced NSCLC among the eight countries. Comparative findings and an understanding of country-specific clinical practices can help to identify areas of need and guide future resource allocation for patients with advanced NSCLC. Further studies evaluating the costs associated with resource use are warranted.

1 October 2017 in Lung Cancer: Targets and Therapy
Verified
Journal Article
Open access
PDF file
HIHiroshi Isobe
Hiroshi Isobe
KMKiyoshi Mori
Kiyoshi Mori
KMKoichi Minato
Koichi Minato
HKHideki Katsura
Hideki Katsura
KTKazuko Taniguchi
Kazuko Taniguchi
TKTerufumi Kato
Terufumi Kato
Background: Recommended therapies for advanced/metastatic non-small cell lung cancer (NSCLC) have changed with the advent of targeted therapies. The objectives of this retrospective chart review study were to describe treatment patterns, biomarker testing practices, and health care resource use for advanced NSCLC at 5 sites in Japan. Patients and methods: We studied anonymized medical record data of patients aged ≥18 years who initiated systemic therapy for newly diagnosed stage IIIB or IV NSCLC from January 2011 through June 2013. Data were analyzed descriptively by histology and mutation status. Overall survival was estimated using the Kaplan–Meier method. Results: We studied 175 patients, including 43 (25%), 129 (74%), and 3 (2%) with squamous, nonsquamous, and unknown NSCLC histology, respectively; 83% had stage IV NSCLC. Overall, 123 patients (70%) were male; the median age was 70 years (range, 47–86); and 33 (19%) were never-smokers. In the nonsquamous cohort, 105 (81%) and 25 (19%) of patients were tested for epidermal growth factor receptor (EGFR) mutation and anaplastic lymphoma kinase (ALK) rearrangement, respectively; 44 (42%) had EGFR-positive NSCLC and 2 (8%) had ALK-positive NSCLC, including 26/46 (57%) women and 21/46 (46%) never-smokers. In the squamous cohort, 17 (40%) and 4 (9%), respectively, were tested; 1 EGFR-positive tumor was detected. After first-line therapy, 105 (60%) patients received second-line, and 54/105 (51%; or 31% overall) received third-line therapy. EGFR tyrosine kinase inhibitors were most commonly prescribed for EGFR-positive NSCLC across all lines. In the nonsquamous EGFR/ALK-negative/unknown cohort, most received first-line platinum combinations, particularly younger patients (78% ≥75 years vs 93% <75 years old). The average hospitalization was 21 days/admission. The median (95% CI) overall survival from start of first-line therapy was 9.9 months (7.6–11.7) for all patients and 17.9 months (9.9–24.4) for patients with EGFR/ALK-positive status. Conclusion: Biomarker testing is common for nonsquamous NSCLC at the 5 Japanese study sites. Treatment is personalized by mutation status and age, per guideline recommendations.

19 December 2023 in Journal of Immunotherapy
Verified
Journal Article
Open access
KAKatherine G. Akers
Katherine G. Akers
SOSabine Oskar
Sabine Oskar
BZBin Zhao
Bin Zhao
AFAndrew M. Frederickson
Andrew M. Frederickson
AAASHWINI & Co. ARUNACHALAM
ASHWINI & Co. ARUNACHALAM
The therapeutic landscape for patients with advanced or metastatic non–small cell lung cancer (NSCLC) is rapidly evolving due to advances in molecular testing and the development of new targeted therapies and immunotherapies. However, the efficacy of programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) inhibitors in advanced or metastatic patients with NSCLC whose tumors harbor BRAF V600E mutation, HER2/ERBB2 alteration, MET exon 14 skipping mutation, or RET rearrangement is not completely understood. A systematic literature review was performed to summarize evidence from clinical trials and observational studies on objective response rate, progression-free survival, and overall survival in patients whose tumors express these biomarkers and who were treated with PD-1/PD-L1 inhibitors. Searches of Embase, MEDLINE, conference abstracts, and a clinical trial registry identified a total of 12 unique studies: 4 studies included patients with BRAF V600E mutation, 6 studies included patients with HER2/ERBB2 alteration, 7 studies included patients with MET exon 14 skipping mutation, and 5 studies included patients with RET rearrangement. Across studies, there was heterogeneity in treatment and patient characteristics and a lack of reporting on many important predictive and prognostic factors, including treatment regimens, patients’ line of therapy, and tumor PD-L1 expression, which may explain the wide variation in objective response rate, progression-free survival, and overall survival across studies. Therefore, additional studies prospectively evaluating clinical outcomes of PD-1/PD-L1 inhibitors among patients with advanced or metastatic NSCLC whose tumors harbor emerging predictive or prognostic biomarkers are needed to determine whether this class of immunotherapy can provide additional survival benefits for these patients.