%0 Journal Article %T Role of compliance in Helicobacter pylori eradication treatment: Results of the European Registry on H. pylori management. %A Huguet JM %A Ferrer-Barceló L %A Suárez P %A Barcelo-Cerda S %A Sempere J %A Saracino IM %A Fiorini G %A Vaira D %A Pérez-Aísa Á %A Jonaitis L %A Tepes B %A Castro-Fernandez M %A Pabón-Carrasco M %A Keco-Huerga A %A Voynovan I %A Lucendo AJ %A Lanas Á %A Martínez-Domínguez SJ %A Alfaro Almajano E %A Rodrigo L %A Vologzanina L %A Bordin DS %A Gasbarrini A %A Babayeva G %A Lerang F %A Leja M %A Kupčinskas J %A Rokkas T %A Marcos-Pinto R %A Meštrović A %A Gridnyev O %A Phull PS %A Smith SM %A Boltin D %A Buzás GM %A Kral J %A Şimşek H %A Matysiak-Budnik T %A Milivojevic V %A Marlicz W %A Venerito M %A Boyanova L %A Doulberis M %A Capelle LG %A Cano-Català A %A Moreira L %A Nyssen OP %A Mégraud F %A O'Morain C %A Gisbert JP %A %J United European Gastroenterol J %V 12 %N 6 %D 2024 Jul 29 %M 38685613 %F 6.866 %R 10.1002/ueg2.12569 %X BACKGROUND: Adherence to Helicobacter pylori (H. pylori) eradication treatment is a cornerstone for achieving adequate treatment efficacy.
OBJECTIVE: To determine which factors influence compliance with treatment.
METHODS: A systematic prospective non-interventional registry (Hp-EuReg) of the clinical practice of European gastroenterologists. Compliance was considered adequate if ≥90% drug intake. Data were collected until September 2021 using the AEG-REDCap e-CRF and were subjected to quality control. Modified intention-to-treat analyses were performed. Multivariate analysis carried out the factors associated with the effectiveness of treatment and compliance.
RESULTS: Compliance was inadequate in 646 (1.7%) of 38,698 patients. The non-compliance rate was higher in patients prescribed longer regimens (10-, 14-days) and rescue treatments, patients with uninvestigated dyspepsia/functional dyspepsia, and patients reporting adverse effects. Prevalence of non-adherence was lower for first-line treatment than for rescue treatment (1.5% vs. 2.2%; p < 0.001). Differences in non-adherence in the three most frequent first-line treatments were shown: 1.1% with proton pump inhibitor + clarithromycin + amoxicillin; 2.3% with proton pump inhibitor clarithromycin amoxicillin metronidazole; and 1.8% with bismuth quadruple therapy. These treatments were significantly more effective in compliant than in non-compliant patients: 86% versus 44%, 90% versus 71%, and 93% versus 64%, respectively (p < 0.001). In the multivariate analysis, the variable most significantly associated with higher effectiveness was adequate compliance (odds ratio, 6.3 [95%CI, 5.2-7.7]; p < 0.001).
CONCLUSIONS: Compliance with Helicobacter pylori eradication treatment is very good. Factors associated with poor compliance include uninvestigated/functional dyspepsia, rescue-treatment, prolonged treatment regimens, the presence of adverse events, and the use of non-bismuth sequential and concomitant treatment. Adequate treatment compliance was the variable most closely associated with successful eradication.