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Air Pollution tied to poor response to drugs in chronic inflammatory arthritis

Written By :  Dr. Nandita Mohan
Medically Reviewed By :  Dr. Kamal Kant Kohli
Published On 2021-06-24 03:30 GMT   |   Update On 2021-06-24 07:22 GMT
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According to a recent research, it has been observed that environmental air pollution was a determinant of poor response to biological treatment (biological disease-modifying antirheumatic drugs [bDMARDs]) in patients with chronic inflammatory arthritides (CIA).

The study is published in the ACR Open Rheumatology Journal.

There is increasing evidence that environmental air pollution is associated with the development of chronic inflammatory arthritides (CIA). The role of air pollutants on the biological treatment (biological disease-modifying antirheumatic drugs [bDMARDs]) response of CIA is still unclear.

Therefore, Giovanni Adami and colleagues from the Rheumatology Unit, University of Verona, Verona, Italy carried out the present study to assess if environmental air pollution is a predictor of poor response to biological drugs in chronic inflammatory arthritides.

The authors retrieved longitudinal data on patients affected by CIA on biological therapies and on the daily concentration of air pollutants in the Verona area. A case-crossover study was designed to compare the exposure to pollutants in the 60-day period preceding a drug switch or swap due to disease progression referent to the 60-day period preceding a visit with stable treatment for at least 6 months.

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The following results were observed-

  1. A total of 1257 patients with CIA (863 with rheumatoid arthritis, 256 with psoriatic arthritis, and 138 with ankylosing spondylitis) with 5454 follow-up visits were included in the study (median follow-up 2.09 years [interquartile range: 0.82-2.58 years]).
  2. A total of 282 patients were included in the case-crossover study.
  3. The authors retrieved 13 636 daily air pollution records.
  4. We found that air pollutants' concentrations were higher in the 60-day period before a failure of bDMARD response and prior to a switch or swap compared with the period preceding a visit with stable bDMARD therapy for at least 6 months.

Hence, the authors concluded that "that environmental air pollution was a determinant of poor response to bDMARDs in a cohort of patients with CIA followed over a 5-year period. An intervention aimed at decreasing fossil combustion emissions might have beneficial effects on biologic persistence rates of patients with CIA and economic expenditures related to switches and swaps."


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Article Source : ACR Open Rheumatology Journal

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Dr. Nandita Mohan

Dr. Nandita Mohan is a practicing pediatric dentist with more than 5 years of clinical work experience. Along with this, she is equally interested in keeping herself up to date about the latest developments in the field of medicine and dentistry which is the driving force for her to be in association with Medical Dialogues. She also has her name attached with many publications; both national and international. She has pursued her BDS from Rajiv Gandhi University of Health Sciences, Bangalore and later went to enter her dream specialty (MDS) in the Department of Pedodontics and Preventive Dentistry from Pt. B.D. Sharma University of Health Sciences. Through all the years of experience, her core interest in learning something new has never stopped. She can be contacted at editorial@medicaldialogues.in. Contact no. 011-43720751

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