These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: The Predicting Response to Inhaled Corticosteroid Efficacy (PRICE) trial.
    Author: Martin RJ, Szefler SJ, King TS, Kraft M, Boushey HA, Chinchilli VM, Craig TJ, Dimango EA, Deykin A, Fahy JV, Israel E, Lazarus SC, Lemanske RF, Leone FT, Pesola GR, Peters SP, Sorkness CA, Szwejbka LA, Wechsler ME, National Heart, Lung, and Blood Institute's Asthma Clinical Research Center.
    Journal: J Allergy Clin Immunol; 2007 Jan; 119(1):73-80. PubMed ID: 17208587.
    Abstract:
    BACKGROUND: Although guidelines recommend anti-inflammatory therapy for persistent asthma, recent studies suggest that 25% to 35% of patients with asthma may not improve lung function with inhaled corticosteroids. OBJECTIVE: To evaluate potential biomarkers of predicting short-term (6-week) response to inhaled corticosteroid with subsequent evaluation of responders and nonresponders to asthma control over a longer interval (16 additional weeks). METHODS: Eighty-three subjects with asthma off steroid were enrolled in this multicenter study. Biomarkers and asthma characteristics were evaluated as predictors of inhaled corticosteroid response over a 6-week trial for changes in FEV(1) and methacholine PC(20). After this, an additional 4-month trial evaluated asthma control. RESULTS: Although multiple baseline predictors had significant correlations with improvements for short-term inhaled steroid success, the only strong correlations (r >or= +/- 0.6) were albuterol reversibility (r = 0.83; P < .001), FEV(1)/forced vital capacity (r = -0.75; P < .001), and FEV(1) % predicted (r = -0.71; P < .001). Dividing the subjects in the short-term inhaled steroid trial into responders (>5% FEV(1) improvement) and nonresponders (<or=5%) determined the longer-term need for steroids. For the nonresponders, asthma control remained unchanged whether inhaled corticosteroids were continued or were substituted with a placebo (P = .99). The good short-term responders maintained asthma control longer-term only if maintained on inhaled steroids (P = .007). CONCLUSION: The short-term response to inhaled corticosteroids with regard to FEV(1) improvement predicts long-term asthma control. CLINICAL IMPLICATIONS: The decision to use long-term inhaled steroids could be based on a short-term trial. Different therapeutic strategies would need to be established for nonresponders.
    [Abstract] [Full Text] [Related] [New Search]