Maintenance Treatment of Eosinophilic Esophagitis With Swallowed Topical Steroids Alters Disease Course Over A 5-Year Follow-Up Period in Adult Patients.

Greuter, Thomas; Safroneeva, Ekaterina; Bussmann, Christian; Biedermann, Luc; Vavricka, Stephan R; Katzka, David A; Schoepfer, Alain M; Straumann, Alex (2019). Maintenance Treatment of Eosinophilic Esophagitis With Swallowed Topical Steroids Alters Disease Course Over A 5-Year Follow-Up Period in Adult Patients. Clinical gastroenterology and hepatology, 17(3), 419-428.e6. Elsevier 10.1016/j.cgh.2018.05.045

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BACKGROUND & AIMS

Although swallowed topical corticosteroids (STCs) are effective in inducing remission of active eosinophilic esophagitis (EoE), there are few data on maintenance of long-term remission. We evaluated the long-term effectiveness of STC therapy for adults with EoE.

METHODS

We performed a retrospective study using the Swiss EoE database. We analyzed data on 229 patients with EoE treated with STCs (175 male; mean age at diagnosis, 39±15 years; median time until diagnosis, 6 years) from 2000 through 2014. Patients were followed for a median 5 years (interquartile range [IQR], 3-7 years). We collected data from 819 follow-up visits on clinical, endoscopic and histological disease characteristics. The primary endpoint was proportions of clinical, endoscopic, and histological remission in all patients and groups, based on the status and duration of STC treatment.

RESULTS

Patients were taking STCs at 336 of the follow-up visits (41.0% of visits). The median duration of STC use before a follow-up visit was 347 days (IQR, 90-750 days) corresponding to 677 doses (IQR, 280-1413 doses) of 0.25 mg each. At the visits, higher proportions of patients who were still taking STCs were in clinical remission (31.0%) compared to patients not taking STCs (4.5%) (P<.001), as well as endoscopic remission (48.8% vs 17.8%; P<.001), histologic remission (44.8% vs 10.1%; P<.001), and complete remission (16.1% vs 1.3%; P<.001). Higher cumulative doses of STCs and longer durations of treatment were associated with higher proportions of clinical and complete remission. No dysplasia or mucosal atrophy was detected. Esophageal candidiasis was observed at 2.7% of visits in patients taking STCs.

CONCLUSION

In an analysis of data from the Swiss EoE database, we found maintenance therapy with STCs to achieve complete remission at 16.1% of follow-up visits, which was higher than in patients receiving no treatment (1.3%). Given the good safety profile of low-dose STC, we advocate for a prolonged treatment. Dose-finding trials are needed to achieve higher remission rates.

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