Predictive value of control of COPD for risk of exacerbations: An international, prospective study

Marc Miravitlles* (Corresponding Author), Pawel Sliwinski, Chin Kook Rhee, Richard W Costello, Victoria Carter, Jessica H Y Tan, Therese S Lapperre, Bernardino Alcazar, Caroline Gouder, Cristina Esquinas, Juan Luis García-Rivero, Anu Kemppinen, Augustine Tee, Miguel Roman-Rodríguez, Juan José Soler-Cataluña, David B Price, Respiratory Effectiveness Group (REG)

*Corresponding author for this work

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Abstract

BACKGROUND AND OBJECTIVE: The concept of clinical control in COPD has been developed to help in treatment decisions, but it requires validation in prospective studies.

METHODS: This international, multicentre, prospective study aimed to validate the concept of control in COPD. Patients with COPD were classified as controlled/uncontrolled by clinical criteria or CAT scores at baseline and followed up for 18 months. The main outcome was the difference in rate of a composite endpoint of moderate and severe exacerbations or death over the 18-month follow-up period.

RESULTS: A total of 307 patients were analysed (mean age = 68.6 years and mean FEV1 % = 52.5%). Up to 65% and 37.9% of patients were classified as controlled by clinical criteria or CAT, respectively. Controlled patients had significantly less exacerbations during follow-up (by clinical criteria: 1.1 vs 2.6, P < 0.001; by CAT: 1.1 vs 1.9, P = 0.014). Time to first exacerbation was significantly prolonged for patients controlled by clinical criteria only (median: 93 days, IQR: 63; 242 vs 274 days, IQR: 221; 497 days; P < 0.001). Control status by clinical criteria was a better predictor of exacerbations compared to CAT criteria (AUC: 0.67 vs 0.57).

CONCLUSION: Control status, defined by easy-to-obtain clinical criteria, is predictive of future exacerbation risk and time to the next exacerbation. The concept of control can be used in clinical practice at each clinical visit as a complement to the current recommendations of initial treatment proposed by guidelines.

Original languageEnglish
Pages (from-to)1136-1143
Number of pages8
JournalRespirology
Volume25
Issue number11
Early online date6 Apr 2020
DOIs
Publication statusPublished - 30 Nov 2020

Bibliographical note

Acknowledgements

Collaborators/REG Investigators: Spain: Marc Miravitlles, Cristina Esquinas, Miriam Barrecheguren, Alexa Nuñez, Hospital Universitari Vall d'Hebron, Barcelona. Bernardino Alcazar, Hospital de Alta Resolución de Loja. Juan Luis García‐Rivero, Karina Hueso, Hospital Comarcal de Laredo, Cantabria. Miguel Roman‐Rodríguez, Primary Health‐Care Center Son Pisà, IB‐Salut, Palma de Mallorca. Poland: Pawel Sliwinsk, Katarzyna Iwan, Jacek Kolakowski, Institute of Tuberculosis and Lung Diseases, Warsaw. Korea: Chin Kook Rhee, Esther Ahn, St Mary's Hospital, Seoul. Singapore: Jessica Tan, Therese Laperre, Karen Tan Li Leng, Nicole Chia, Ong Thun How, Syifa Binte Shamsuddin, Sherine Lim Shu Gim, Yap Chwee Bee, Soh Rui Ya, Singapore General Hospital. Augustine Tee, Jun Jie Yan, Samuel Hong, William Tan, Changi General Hospital. UK: Victoria Carter, Latife Hardaker, Andrew McLaughlin, Optimum Patient Care, Cambridge. Malta: Caroline Gouder, Mater Dei Hospital. Ireland: Richard W Costello, Royal College of Surgeons, Dublin.

The study was funded by an unrestricted grant from Novartis AG.

The study was designed and coordinated by the Respiratory Effectiveness Group (REG; www.effectivenessevaluation.org; Cambridge, UK) and delivered by Optimum Patient Care (OPC; www.optimumpatientcare.org).

Keywords

  • Chronic Obstructive Pulmonary Disease Assessment Test
  • clinical control status
  • dyspnoea
  • exacerbations
  • prevention
  • MANAGEMENT
  • COPD CONTROL
  • VALIDATION
  • CLINICAL CONTROL

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