Impact of acupuncture on antihistamine use in patients suffering seasonal allergic rhinitis: secondary analysis of results from a randomised controlled trial

Daniela Adam, Linus Grabenhenrich, Miriam Ortiz, Sylvia Binting, Thomas Reinhold, Benno Brinkhaus, Daniela Adam, Linus Grabenhenrich, Miriam Ortiz, Sylvia Binting, Thomas Reinhold, Benno Brinkhaus

Abstract

Background: Seasonal allergic rhinitis (SAR) is a common disease that has detrimental effects on the quality of life (QoL) of affected individuals. Approximately 18% of patients try to alleviate their symptoms through acupuncture. The ACUSAR (ACUpuncture in Seasonal Allergic Rhinitis) study (ClinicalTrials.gov registration no. NCT00610584) assessed the impact of acupuncture on SAR, showing significant improvements in rhinitis-specific QoL (RQoL) and in rescue medication (RM) use.

Objective: A secondary analysis of SAR patients' use of antihistamine.

Methods: Patients were randomised into three study groups: acupuncture plus RM, sham acupuncture plus RM, and RM alone. The patients documented their medication use before and during the intervention period (8 weeks). The main outcome was the number of days with antihistamine use. Statistical analyses were conducted using parametric and non-parametric tests. The robustness of the results was tested by sensitivity analyses using non-parametric bootstrapping.

Results: The data from 414 patients were analysed. The acupuncture group used antihistamines significantly less often compared with the other groups (acupuncture vs sham acupuncture: mean difference -4.49 days, p=0.01; acupuncture vs RM: mean difference -9.15 days, p<0.001). Approximately 38% of the acupuncture group did not use any antihistamine in contrast to only 16% in the RM group. The pre-post comparison suggested that the acupuncture patients did not need to increase the days of antihistamine use to alleviate their symptoms, unlike the other groups.

Conclusions: Acupuncture appeared to significantly reduce the number of days of antihistamine use while improving RQoL and SAR symptoms; it can therefore be considered a valuable, additional treatment option for patients with SAR.

Trial registration number: NCT00610584; Post-results.

Keywords: Acupuncture; Allergy.

Conflict of interest statement

Competing interests: BB has received travel expenses, accommodation and free congress registration from acupuncture societies. The other authors have nothing to declare.

© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

Figures

Figure 1
Figure 1
Study design and time points for the outcome measurements.
Figure 2
Figure 2
Days of antihistamine use by the groups at baseline and during the intervention period.
Figure 3
Figure 3
Proportion of patients in various categories for the days of antihistamine use at baseline and during the intervention period for all groups.

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