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Psychophysically-anchored, Robust Thresholding in Studying Pain-related Lateralization of Oscillatory Prestimulus Activity

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IMPLICATION OF ALTERNATIVE MINIMAL CLINICALLY IMPORTANT DIFFERENCE THRESHOLD ESTIMATION METHODS ON TECHNOLOGY

Diana Brixner¹, Eli O Meltzer², Kellie Morland³

¹Department of Pharmacotherapy,University of Utahdiana.brixner@utah.edu.

International Journal of Technology Assessment in Health Care

|December 7, 2016

Summary

This summary is machine-generated.

Different methods for estimating the minimal clinically important difference (MCID) in seasonal allergic rhinitis (SAR) yield conflicting results. This impacts health technology assessments for SAR treatments.

Keywords:

Intranasal combination Intranasal corticosteroid Outcome assessment Seasonal allergic rhinitis Treatment outcome

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Area of Science:

Allergy and Immunology
Pharmacoeconomics
Clinical Trial Design

Background:

Minimal clinically important difference (MCID) thresholds are crucial for interpreting treatment effects in seasonal allergic rhinitis (SAR).
Various techniques exist for estimating MCID, potentially leading to divergent conclusions regarding treatment efficacy.

Purpose of the Study:

To compare the magnitude of different MCID threshold estimates for SAR.
To evaluate how varying MCID estimates affect health technology assessment (HTA) decisions for SAR treatments.

Main Methods:

Utilized data on the change from baseline in the reflective Total Nasal Symptom Score (rTNSS) for four intranasal SAR treatments.
Compared treatment effects against anchor-based MCID thresholds and those from an Agency for Healthcare Research and Quality (AHRQ) panel.

Main Results:

Observed changes in rTNSS varied across treatments, with significant reductions for azelastine hydrochloride, fluticasone furoate, and MP-AzeFlu.
Comparing treatment effects to different MCID thresholds led to conflicting interpretations of clinical importance.
Anchor-based MCID estimates suggested clinical importance more readily than AHRQ panel estimates.

Conclusions:

The MCID threshold from the AHRQ panel was substantially larger than anchor-based estimates.
Discrepancies in MCID thresholds create conflicting recommendations on the clinical benefits of SAR treatments.