Efficacy of Polyvinylpyrrolidone–Zinc Gluconate and Taurine Gel in the Prophylaxis of Oral Mucositis in Adults Undergoing High-Dose Chemotherapy and Allogeneic Stem Cell Transplantation

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Background: Oral mucositis (OM) is a significant complication after allogeneic stem cell transplantation. Objectives: This prospective, observational cohort study assessed the effectiveness of a polyvinylpyrrolidone-zinc gluconate and taurine (PVP-ZG-TAU) oral gel in managing OM. The primary objective was to determine whether the gel reduced the incidence and grade of OM and accelerated its resolution. Methods: The study enrolled 82 patients; 39 received the PVP-ZG-TAU gel, and 43 represented a historical control group. To prevent oral mucositis, both groups maintained good oral hygiene. In the experimental group, patients received three sprays of PVP-ZG-TAU gel, three times a day, from the start of conditioning chemotherapy until day +15 after allo-SCT. Results: In the PVP-ZG-TAU group, 79.1% patients experienced grade 1–2 OM and 20.9% experienced grade 3–4 OM. In the control group, 74.4% had grade 1–2 OM, and 25.6% had grade 3–4 OM (p = ns). Resolution occurred significantly faster in the PVP-ZG-TAU group, with an 84% resolution rate per 100 person-weeks, compared with 62% in the control group. Cox regression analysis revealed that treatment was associated with a 68% greater likelihood of earlier resolution (adjusted hazard ratio [HR], 1.68; 95% confidence interval [CI], 1.03–2.74; p = 0.036). Conclusions: These findings suggest that PVP-ZG-TAU can reduce OM duration and serve as a supportive intervention for allo-SCT patients.

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