Cited by 128Asthma and respiratory diseasesInhalation and Respiratory Drug DeliveryChronic Obstructive Pulmonary Disease (COPD) Research

Chronotherapy of asthma with inhaled steroids: The effect of dosage timing on drug efficacy

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Pincus, Diane J., Szefler, Stanley J., Ackerson, Lynn M., Martin, Richard J.·1995·Journal of Allergy and Clinical Immunology

Abstract

Background Studies in asthma with systemic corticosteroids given at 3:00 PM have shown a superior therapeutic benefit compared with dosing at other time points.Objective The study was designed to compare beneficial and systemic effects of 800 micrograms of inhaled triamcinolone once daily at 3:00 PM (QD group) versus 200 micrograms conventional four times a day dosing (QID group).Methods Efficacy outcome measures included forced expiratory volume in 1 second (FEV1), peak expiratory flow rates, bronchial responsiveness, and use of beta-agonist. Systemic effects were blood eosinophil and cortisol levels, 24-hour urinary cortisol, and evaluation for oral candidiasis and dysphonia.Results The baseline FEV1 was comparable in the two groups: QD = 67% +/- 2% and QID = 66% +/- 2% of predicted value. After 4 weeks of treatment, FEV1 increased similarly in the QD group to 77% +/- 4% and in the QID group to 74% +/- 4% of predicted value. Likewise, the improvement in morning and evening peak expiratory flow rates was not significantly different between the groups. Both QD and QID groups experienced comparable daily decrements in beta-agonist use. The systemic responses to the two regimens as assessed by eosinophil count, morning serum cortisol, and 24-hour urinary cortisol were also comparable.Conclusions The single daily administration of inhaled triamcinolone at 3:00 PM has no increased systemic effects and produces similar improvement in efficacy variables. A dosing strategy based on once daily dosing should increase compliance of inhaled steroid use in the clinical setting.

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Crossref · 10.1016/s0091-6749(95)70073-0

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  • The goal of medication dosing is to optimize effectiveness without causing serious adverse side effects, both of which may depend on circadian time.

    “The goal of medication dosing is to optimize effectiveness without causing serious adverse side effects, both of which may depend on circadian time (170, 171).”

    From Role of the circadian system in cardiovascular disease (2018) · cites this paper as [170]

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Authors
Pincus, D. J., Szefler, S. J., Ackerson, L. M., & Martin, R. J.
Affiliations
National Jewish Health (US)
Venue
Journal of Allergy and Clinical Immunology
Publisher
Elsevier BV
Published
1995-06
Volume
95
Issue
6
Pages
1172-1178
ISSN
0091-6749 (ISSN-L)
OpenAlex
W2150971973
Cited by
128
References
16
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 5 · 2021: 5 · 2020: 4 · 2019: 1 · 2018: 2 · 2017: 1 · 2016: 5 · 2015: 3 · 2014: 2 · 2013: 3 · 2012: 3
FWCI
3.99
Type
journal article
Language
en
Open access
Locations
  • Journal of Allergy and Clinical Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Heart, Lung, and Blood Institute (HL 36577, P01HL036577)
Topics
  • Health Sciences › Medicine › Physiology › Asthma and respiratory diseases
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Inhalation and Respiratory Drug Delivery
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
Keywords
asthma, inhaled corticosteroids, triamcinolone, chronotherapy, timing of drug administration, once-daily dosing, FEV1, peak expiratory flow, airway hyperresponsiveness, beta-agonist use, eosinophil count, serum cortisol, urinary cortisol, oral candidiasis, dysphonia, medication adherence
MeSH terms
Administration, Inhalation, Adrenergic beta-Agonists, Adult, Asthma, Cell Count, Eosinophils, Female, Humans, Hydrocortisone, Male, Middle Aged, Time Factors, Triamcinolone

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