1.A survey of management practices in coexistent allergic rhinitis and asthma (Asia-pacific Survey of Physicians on Asthma and allergic Rhinitis): results from Thailand
Torsak BUNUPURADAH ; Sudawan SIRIAKSORN ; David HINDS ; Sumitra SHANTAKUMAR ; Aruni MULGIRIGAMA ; Bhumika AGGARWAL
Asia Pacific Allergy 2019;9(3):e24-
BACKGROUND: Underdiagnosis and undertreatment of allergic rhinitis (AR) in patients with asthma can worsen treatment outcomes. There is limited evidence of clinical practices for management of coexistent AR-asthma in Thailand. METHODS: A multicountry, cross-sectional study (Asia-pacific Survey of Physicians on Asthma and allergic Rhinitis) to evaluate physician perceptions and management practices related to AR-asthma overlap in 6 Asian countries was conducted. For Thailand specifically, AR-asthma linkage questionnaires were developed and translated to Thailaland. General physicians (GPs) or pediatricians, randomly selected from hospitals in urban cities, routinely treating >10 asthma patients/month were interviewed. Here we present the results for Thailand. RESULTS: Two hundred physicians (100 GPs and 100 pediatricians), of whom 70% worked in government hospitals, were interviewed. In their experience, 50% of asthma patients had AR and 28% of AR patients had asthma. Among diagnosed asthma patients, 65% of physicians routinely asked for any AR symptoms at every visit. Among diagnosed AR patients, 63% of physicians routinely asked for any asthma symptoms at every visit. In patients with coexisting AR-asthma, 91% of physicians treated both diseases simultaneously, while 6% of physicians treated asthma as a chronic disease but managed AR symptomatically. The most preferred treatment options for patients with AR-asthma were inhaled corticosteroids with intranasal steroids (46% in GPs, 71% in pediatricians). CONCLUSION: The physicians interviewed in Thailand are aware about coexistent asthma-AR. There is a need to increase the awareness further for coexistent AR-asthma and to educate nonspecialist physicians in the proper management of AR-asthma patients.
Adrenal Cortex Hormones
;
Asian Continental Ancestry Group
;
Asthma
;
Chronic Disease
;
Comorbidity
;
Cross-Sectional Studies
;
Humans
;
Rhinitis, Allergic
;
Steroids
;
Thailand
2.Making Clinical Practice Guidelines Pragmatic: How Big Data and Real World Evidence Can Close the Gap.
Si Yuan CHEW ; Mariko S KOH ; Chian Min LOO ; Julian THUMBOO ; Sumitra SHANTAKUMAR ; David B MATCHAR
Annals of the Academy of Medicine, Singapore 2018;47(12):523-527
Clinical practice guidelines (CPGs) have become ubiquitous in every field of medicine today but there has been limited success in implementation and improvement in health outcomes. Guidelines are largely based on the results of traditional randomised controlled trials (RCTs) which adopt a highly selective process to maximise the intervention's chance of demonstrating efficacy thus having high internal validity but lacking external validity. Therefore, guidelines based on these RCTs often suffer from a gap between trial efficacy and real world effectiveness and is one of the common reasons contributing to poor guideline adherence by physicians. "Real World Evidence" (RWE) can complement RCTs in CPG development. RWE-in the form of data from integrated electronic health records-represents the vast and varied collective experience of frontline doctors and patients. RWE has the potential to fill the gap in current guidelines by balancing information about whether a test or treatment works (efficacy) with data on how it works in real world practice (effectiveness). RWE can also advance the agenda of precision medicine in everyday practice by engaging frontline stakeholders in pragmatic biomarker studies. This will enable guideline developers to more precisely determine not only whether a clinical test or treatment is recommended, but for whom and when. Singapore is well positioned to ride the big data and RWE wave as we have the advantages of high digital interconnectivity, an integrated National Electronic Health Record (NEHR), and governmental support in the form of the Smart Nation initiative.
Big Data
;
Electronic Health Records
;
Evidence-Based Medicine
;
Guideline Adherence
;
Humans
;
Practice Guidelines as Topic
;
Practice Patterns, Physicians'
;
Pragmatic Clinical Trials as Topic
;
Precision Medicine
;
Singapore
3.Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data
Chin Kook RHEE ; Yu-Fan HO ; Sumitra SHANTAKUMAR ; Tim HOLBROOK ; Yein NAM ; Kwang‑Ha YOO
The Korean Journal of Internal Medicine 2025;40(1):78-91
Background/Aims:
Chronic obstructive pulmonary disease (COPD) management guidelines have increasingly emphasised the importance of exacerbation prevention, and the role of blood eosinophil count (BEC) as a biomarker for inhaled corticosteroids (ICS) response. This study aimed to describe the distribution and stability of BEC and understand real-world treatment patterns among COPD patients in South Korea.
Methods:
This was a retrospective database analysis using data obtained from the KOrea COPD Subgroup Study (KOCOSS) registry between January 2012 and August 2018. KOCOSS is an ongoing, longitudinal, prospective, multi-centre, non-interventional study investigating early COPD amongst South Korean patients. BEC stability was assessed by calculating the intra-class correlation (ICC) coefficient. “Exacerbators” were patients who had a record of ≥ 1 exacerbation in the 12 months prior to the visit.
Results:
The study included 2,661 patients with a mean age of 68.6 years. Most patients were male (92.0%). Mean BEC was significantly higher in exacerbators compared to non-exacerbators. Patients with ≥ 2 exacerbations at baseline had a less stable BEC over time (ICC = 0.44) compared to non-exacerbators (ICC = 0.57). Patients with BEC ≥ 300 cells/μL at baseline predominantly received triple therapy (43.8%).
Conclusions
This study may further develop current understanding on BEC profiles amongst COPD patients in South Korea. BEC measurements are stable and reproducible among COPD patients, which supports its use as a potential biomarker.
4.Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data
Chin Kook RHEE ; Yu-Fan HO ; Sumitra SHANTAKUMAR ; Tim HOLBROOK ; Yein NAM ; Kwang‑Ha YOO
The Korean Journal of Internal Medicine 2025;40(1):78-91
Background/Aims:
Chronic obstructive pulmonary disease (COPD) management guidelines have increasingly emphasised the importance of exacerbation prevention, and the role of blood eosinophil count (BEC) as a biomarker for inhaled corticosteroids (ICS) response. This study aimed to describe the distribution and stability of BEC and understand real-world treatment patterns among COPD patients in South Korea.
Methods:
This was a retrospective database analysis using data obtained from the KOrea COPD Subgroup Study (KOCOSS) registry between January 2012 and August 2018. KOCOSS is an ongoing, longitudinal, prospective, multi-centre, non-interventional study investigating early COPD amongst South Korean patients. BEC stability was assessed by calculating the intra-class correlation (ICC) coefficient. “Exacerbators” were patients who had a record of ≥ 1 exacerbation in the 12 months prior to the visit.
Results:
The study included 2,661 patients with a mean age of 68.6 years. Most patients were male (92.0%). Mean BEC was significantly higher in exacerbators compared to non-exacerbators. Patients with ≥ 2 exacerbations at baseline had a less stable BEC over time (ICC = 0.44) compared to non-exacerbators (ICC = 0.57). Patients with BEC ≥ 300 cells/μL at baseline predominantly received triple therapy (43.8%).
Conclusions
This study may further develop current understanding on BEC profiles amongst COPD patients in South Korea. BEC measurements are stable and reproducible among COPD patients, which supports its use as a potential biomarker.
5.Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data
Chin Kook RHEE ; Yu-Fan HO ; Sumitra SHANTAKUMAR ; Tim HOLBROOK ; Yein NAM ; Kwang‑Ha YOO
The Korean Journal of Internal Medicine 2025;40(1):78-91
Background/Aims:
Chronic obstructive pulmonary disease (COPD) management guidelines have increasingly emphasised the importance of exacerbation prevention, and the role of blood eosinophil count (BEC) as a biomarker for inhaled corticosteroids (ICS) response. This study aimed to describe the distribution and stability of BEC and understand real-world treatment patterns among COPD patients in South Korea.
Methods:
This was a retrospective database analysis using data obtained from the KOrea COPD Subgroup Study (KOCOSS) registry between January 2012 and August 2018. KOCOSS is an ongoing, longitudinal, prospective, multi-centre, non-interventional study investigating early COPD amongst South Korean patients. BEC stability was assessed by calculating the intra-class correlation (ICC) coefficient. “Exacerbators” were patients who had a record of ≥ 1 exacerbation in the 12 months prior to the visit.
Results:
The study included 2,661 patients with a mean age of 68.6 years. Most patients were male (92.0%). Mean BEC was significantly higher in exacerbators compared to non-exacerbators. Patients with ≥ 2 exacerbations at baseline had a less stable BEC over time (ICC = 0.44) compared to non-exacerbators (ICC = 0.57). Patients with BEC ≥ 300 cells/μL at baseline predominantly received triple therapy (43.8%).
Conclusions
This study may further develop current understanding on BEC profiles amongst COPD patients in South Korea. BEC measurements are stable and reproducible among COPD patients, which supports its use as a potential biomarker.
6.Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data
Chin Kook RHEE ; Yu-Fan HO ; Sumitra SHANTAKUMAR ; Tim HOLBROOK ; Yein NAM ; Kwang‑Ha YOO
The Korean Journal of Internal Medicine 2025;40(1):78-91
Background/Aims:
Chronic obstructive pulmonary disease (COPD) management guidelines have increasingly emphasised the importance of exacerbation prevention, and the role of blood eosinophil count (BEC) as a biomarker for inhaled corticosteroids (ICS) response. This study aimed to describe the distribution and stability of BEC and understand real-world treatment patterns among COPD patients in South Korea.
Methods:
This was a retrospective database analysis using data obtained from the KOrea COPD Subgroup Study (KOCOSS) registry between January 2012 and August 2018. KOCOSS is an ongoing, longitudinal, prospective, multi-centre, non-interventional study investigating early COPD amongst South Korean patients. BEC stability was assessed by calculating the intra-class correlation (ICC) coefficient. “Exacerbators” were patients who had a record of ≥ 1 exacerbation in the 12 months prior to the visit.
Results:
The study included 2,661 patients with a mean age of 68.6 years. Most patients were male (92.0%). Mean BEC was significantly higher in exacerbators compared to non-exacerbators. Patients with ≥ 2 exacerbations at baseline had a less stable BEC over time (ICC = 0.44) compared to non-exacerbators (ICC = 0.57). Patients with BEC ≥ 300 cells/μL at baseline predominantly received triple therapy (43.8%).
Conclusions
This study may further develop current understanding on BEC profiles amongst COPD patients in South Korea. BEC measurements are stable and reproducible among COPD patients, which supports its use as a potential biomarker.
7.Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data
Chin Kook RHEE ; Yu-Fan HO ; Sumitra SHANTAKUMAR ; Tim HOLBROOK ; Yein NAM ; Kwang‑Ha YOO
The Korean Journal of Internal Medicine 2025;40(1):78-91
Background/Aims:
Chronic obstructive pulmonary disease (COPD) management guidelines have increasingly emphasised the importance of exacerbation prevention, and the role of blood eosinophil count (BEC) as a biomarker for inhaled corticosteroids (ICS) response. This study aimed to describe the distribution and stability of BEC and understand real-world treatment patterns among COPD patients in South Korea.
Methods:
This was a retrospective database analysis using data obtained from the KOrea COPD Subgroup Study (KOCOSS) registry between January 2012 and August 2018. KOCOSS is an ongoing, longitudinal, prospective, multi-centre, non-interventional study investigating early COPD amongst South Korean patients. BEC stability was assessed by calculating the intra-class correlation (ICC) coefficient. “Exacerbators” were patients who had a record of ≥ 1 exacerbation in the 12 months prior to the visit.
Results:
The study included 2,661 patients with a mean age of 68.6 years. Most patients were male (92.0%). Mean BEC was significantly higher in exacerbators compared to non-exacerbators. Patients with ≥ 2 exacerbations at baseline had a less stable BEC over time (ICC = 0.44) compared to non-exacerbators (ICC = 0.57). Patients with BEC ≥ 300 cells/μL at baseline predominantly received triple therapy (43.8%).
Conclusions
This study may further develop current understanding on BEC profiles amongst COPD patients in South Korea. BEC measurements are stable and reproducible among COPD patients, which supports its use as a potential biomarker.
8. Asia Pacific survey of physicians on asthma and allergic rhinitis (ASPAIR): data from China
David HINDS ; Bhumika AGGARWAL ; Xin DU ; Aruni MULGIRIGAMA ; Sumitra SHANTAKUMAR
Chinese Medical Journal 2019;132(11):1264-1271
Background:
In China, the prevalence of allergic rhinitis (AR) and asthma has increased in the past decade. As these two diseases frequently coexist, the Asia-Pacific Survey of Physicians on Asthma and Allergic Rhinitis (ASPAIR) study aimed to assess physicians’ beliefs and treatment patterns of coexistent asthma-AR across six Asian countries. This analysis presents the results from China.
Methods:
The 200 hospital-based general physicians and pediatricians were interviewed from five cities in China. Physicians were questioned in-person about their knowledge, beliefs and management practices for patients with coexistent asthma-AR.
Results:
Approximately 70% of the physicians interviewed routinely evaluated their patients with asthma or AR for signs of coexistent disease. While the majority of physicians (>90% of physicians) recognized the increased burden of coexistent asthma-AR
9.Long-Term Effectiveness and Safety of Dutasteride versus Finasteride in Patients with Male Androgenic Alopecia in South Korea: A Multicentre Chart Review Study
Gwang-Seong CHOI ; Woo-Young SIM ; Hoon KANG ; Chang Hun HUH ; Yang Won LEE ; Sumitra SHANTAKUMAR ; Yu-Fan HO ; Eun-Jeong OH ; Mei Sheng DUH ; Wendy Y. CHENG ; Priyanka BOBBILI ; Philippe THOMPSON-LEDUC ; Gary ONG
Annals of Dermatology 2022;34(5):349-359
Background:
Dutasteride improves hair growth compared with finasteride in male androgenic alopecia (AGA) and is well tolerated. However, real-world evidence for longterm dutasteride use in AGA is lacking.
Objective:
To describe baseline characteristics, treatment patterns and long-term safety and effectiveness of dutasteride versus finasteride.
Methods:
This was a multicentre, retrospective medical chart review study conducted in South Korea. The index date was the first prescription of dutasteride or finasteride. Baseline characteristics were assessed 6 months prior to index. Safety and effectiveness improvements in basic and specific [BASP] classification) data were collected from index throughout the observation period.
Results:
Overall, 600 male adult patients were included (dutasteride, n=295; finasteride, n=305). Dutasteride-treated patients were older (p<0.001) and more likely to have moderate/ severe BASP classification at baseline (p=0.010) compared with finasteride-treated patients. Among patients treated with recommended, on-label dosing exclusively (n=535: dutasteride, n=250; finasteride, n=285), dutasteride-treated patients showed greater improvement in hair growth than finasteride-treated patients, as measured by the BASP basic M classification (adjusted incidence rate ratio [95% confidence interval]: 2.06 [1.08, 3.95]; p=0.029). Among this same subset, overall occurrence of adverse events (AEs) during the observation period were not statistically equivalent between groups (dutasteride 7.6%, finasteride 10.5%; p=0.201), although reports of AEs of special interest were equivalent (p<0.001).
Conclusion
Dutasteride showed greater effectiveness than finasteride in improving BASP classification in treating male AGA and had a similar or possibly lower occurrence of overall AEs. Dutasteride may provide an effective and safe treatment option for male patients with AGA.