Pre-transplant Screening for MMP-9 in Allogeneic HSCT Candidates
DOI:
https://doi.org/10.46765/2675-374X.2024v5n2p238Abstract
Purpose: InflammaDry® (Quidel Eye Health, San Diego, California), an FDA-approved point-of-care commercial test, measures matrix metalloproteinase-9 (MMP-9) levels in the tear film. MMP-9 is an inflammatory biomarker that is elevated in response to ocular surface stress, particularly observed in ocular graft-versus-host disease (oGVHD). The purpose of this study is to assess the prevalence of MMP-9 positivity and a score >4 on the OSDI-6 questionnaire in patients before allogeneic hematopoietic stem cell transplant (HSCT).
Methods: A prospective, observational, cross-sectional single center pilot study was conducted among 23 patients (46 eyes) undergoing planned allogenic HSCT. InflammaDry® results, OSDI-6 questionnaire results, and development of oGVHD were collected. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and chi-square test were calculated.
Results: InflammaDry® demonstrated high sensitivity (1.0) but low specificity (0.1429) for oGVHD development. The PPV was 0.25, while the NPV was 1.0. No statistical significance was found between InflammaDry® result and development of oGVHD (p-value> 0.05).
Conclusion: InflammaDry® is not an effective tool for detecting the onset or predicting the risk of developing oGVHD. A significant percentage of patients exhibited ocular inflammation before allogeneic HSCT, suggesting that initiating prophylactic treatment could be valuable in reducing oGVHD development.
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