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Glucocorticoid withdrawal and glucocorticoid-induced adrenal insufficiency: Study protocol of the randomized controlled «TOASST” (Taper Or Abrupt Steroid STop) multicenter trial

Komminoth, Mathis ; Donath, Marc Y. ; Hepprich, Matthias ; [weitere]

Public Library of Science (PLoS) ; 2023

In: PLOS ONE Vol. 18, No. 4 ( 2023-4-5), p. e0281585-

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In: PLOS ONE, Public Library of Science (PLoS), Vol. 18, No. 4 ( 2023-4-5), p. e0281585-

Kurzfassung: Despite the widespread use of glucocorticoids in inflammatory and autoimmune disorders, there is uncertainty about the safe cessation of long-term systemic treatment, as data from prospective trials are largely missing. Due to potential disease relapse or glucocorticoid-induced hypocortisolism, the drug is often tapered to sub-physiological doses rather than stopped when the underlying disease is clinically stable, increasing the cumulative drug exposure. Conversely, the duration of exposure to glucocorticoids should be minimized to lower the risk of side effects. Methods We designed a multicenter, randomized, triple-blinded, placebo-controlled trial to test the clinical noninferiority of abrupt glucocorticoid stop compared to tapering after ≥28 treatment days with ≥420 mg cumulative and ≥7.5 mg mean daily prednisone-equivalent dose. 573 adult patients treated systemically for various disorders will be included after their underlying disease has been stabilized. Prednisone in tapering doses or matching placebo is administered over 4 weeks. A 250 mg ACTH-test, the result of which will be revealed a posteriori , is performed at study inclusion; all patients are instructed on glucocorticoid stress cover dosing. Follow-up is for 6 months. The composite primary outcome measure is time to hospitalization, death, initiation of unplanned systemic glucocorticoid therapy, or adrenal crisis. Secondary outcomes include the individual components of the primary outcome, cumulative glucocorticoid doses, signs and symptoms of hypocortisolism, and the performance of the ACTH test in predicting the clinical outcome. Cox proportional hazard, linear, and logistic regression models will be used for statistical analysis. Conclusion This trial aims to demonstrate the clinical noninferiority and safety of abrupt treatment cessation after ≥28 days of systemic glucocorticoid therapy in patients with stabilized underlying disease. Trial registration ClinicalTrials.gov Identifier: NCT03153527 ; EUDRA-CT: 2020–005601–48 https://clinicaltrials.gov/ct2/show/NCT03153527?term=NCT03153527 & draw=2 & rank=1 .

Materialart: Online-Ressource

ISSN: 1932-6203

URL: Article