Key takeaways:
- Persistence was outlined as a scarcity of a therapy hole of greater than two doses, with greater than half of refills accomplished.
- Sufferers who had been much less persistent and never persistent had 18% extra bronchial asthma exacerbations.
SAN FRANCISCO — Sufferers with bronchial asthma who didn’t stick with biologic therapy had extra exacerbations and used extra oral corticosteroids, in response to an summary offered on the American Thoracic Society Worldwide Convention.
Persistence charges various relying on the biologic, Justin Kwiatek, PharmD, senior director and U.S. medical affairs lead, respiratory biologics, GSK, stated throughout his presentation.

Information had been derived from Kwiatek J, et al. Actual-world persistence to biologic therapies and its affect on outcomes in sufferers with bronchial asthma. Introduced at: American Thoracic Society Worldwide Convention; Could 16-21, 2025; San Francisco.
“We needed to know the medical and real-world affect that biologics can have primarily based on patterns of adherence and persistence,” Kwiatek instructed Healio.

Justin Kwiatek
Earlier this 12 months, he stated, the researchers offered knowledge indicating strikingly completely different adherence patterns in biologics, main them to ask how these patterns may have an effect on affected person outcomes.
“Right here, we investigated ranges of persistence with biologic therapies in sufferers with bronchial asthma, and the medical affect on exacerbations and use of oral corticosteroids,” Kwiatek stated.
The researchers outlined adherence as how nicely a affected person matches a prescribed therapy plan and persistence as how lengthy a affected person follows the therapy plan.
“For instance, if we see a affected person continues to be on a remedy at 12 months, have they adhered to the routine the entire time, or are there large gaps the place therapy was paused? How does that examine to those that discontinue therapy?” Kwiatek stated.
“These are the sorts of questions we wish to reply by way of our adherence/persistence classes,” he stated.
The retrospective cohort examine included knowledge from 16,336 sufferers aged 12 years and older with bronchial asthma within the Komodo Analysis Database who started biologic therapy between Jan. 1, 2016, and June 30, 2024.
The cohort included 10,266 sufferers (62.6%) categorised as persistent, or therapy with no hole of greater than two doses and greater than 50% of refills accomplished.
Additionally, 1,972 sufferers (12.1%) had been categorised as non-persistent, outlined as a therapy hole of greater than two doses or 50% or fewer refills accomplished.
There have been 499 sufferers (3.1%) categorised as non-persistent, with therapy gaps of greater than two doses with 50% or fewer refills accomplished.
Lastly, therapy for 3,699 sufferers (22.3%) was categorised as discontinued, with a therapy hole of greater than three doses with resumption.
Sufferers who initiated IL-5/5R biologics had the very best charges of persistence, together with 72.2% for benralizumab (Fasenra, AstraZeneca), 69% for reslizumab (Cinqair, Teva Pharmaceutical) and 68% for mepolizumab (Nucala, GSK).
Tezepelumab (Tezspire; Amgen, AstraZeneca) had the very best fee of discontinued therapy at 33.2%, adopted by omalizumab (Xolair; Genentech, Novartis) at 29.6% and dupilumab (Dupixent; Sanofi, Regeneron) at 23.3%.
“Sufferers with much less persistence to a biologic remedy had a considerably larger fee of bronchial asthma exacerbations and OCS use,” Kwiatek stated.
Total exacerbation charges had been 18% increased (RR = 1.18; 95% CI, 1.12-1.24) and hospitalization-defined exacerbations per patient-year had been 28% increased (RR = 1.28; 95% CI, 1.17-1.39) for partially non-persistent and non-persistent sufferers in contrast with persistent sufferers.
Oral corticosteroid meting out charges per affected person 12 months had been 39% increased for non-persistent sufferers (P < .05) and 33% increased for discontinuation sufferers (P < .05) in contrast with persistent sufferers.
Equally, oral corticosteroid burst charges per affected person 12 months had been 37% for non-persistent sufferers and 19% increased for discontinuation sufferers in contrast with persistent sufferers (P < .05 for each).
Imply each day oral corticosteroid doses had been 0.4 mg increased for non-persistent sufferers and 0.71 mg increased for discontinuation sufferers for discontinuation sufferers in contrast with persistent sufferers as nicely (P < .05 for each).
Based mostly on these findings, the researchers concluded that persistence to biologic therapies various relying on the therapy and that much less persistence led to extra exacerbations and oral corticosteroid use.
“Total, these outcomes point out that lack of persistence might result in some sufferers not receiving the total potential medical advantage of their biologic remedy,” Kwiatek stated.
Though the researchers didn’t instantly consider limitations to adherence and persistence of their examine, Kwiatek did notice that there are normal elements that may affect such conduct.
“Analysis has proven us that sufferers might discontinue therapies because of elements resembling problem of the injection or gadget, attending to the clinic, price and worry of needles,” he stated.
Dosing frequencies and sorts of administration fluctuate by biologic agent as nicely, he continued, which additionally impacts affected person desire and adherence.
“It’s necessary to notice that whatever the cause, we see elevated exacerbations when persistence is decrease,” Kwiatek added.
Shared decision-making is important to adherence and persistence, he continued, as medical doctors emphasize therapy targets and the reasoning behind biologic decisions to encourage sufferers to observe the plan.
“Biologics with longer dosing intervals ought to be thought of, as these had been typically related to a larger proportion of sufferers remaining persistent with therapy,” he stated. “Entry to affected person help applications can also be useful to make sure that sufferers are in a position to have their questions answered and proceed on the remedy, particularly if taken at house.”
Additional, Kwiatek stated that he and his colleagues now have an understanding of adherence and persistence patterns in addition to of the real-world affect on sufferers who will not be receiving the total advantages of their remedy and that they may proceed their research.
“From right here, we wish to perceive extra about who these sufferers are, demographics and social determinants of well being, to see which sufferers are prone to be within the persistent vs. much less/non-persistent classes,” he stated.
For extra info:
Justin Kwiatek, PharmD, could be reached at allergy@healio.com.