PMID- 32314519 OWN - NLM STAT- MEDLINE DCOM- 20210428 LR - 20210428 IS - 1523-5378 (Electronic) IS - 1083-4389 (Linking) VI - 25 IP - 4 DP - 2020 Aug TI - Non-bismuth and bismuth quadruple therapies based on previous clarithromycin exposure are as effective and safe in an area of high clarithromycin resistance: A real-life study. PG - e12694 LID - 10.1111/hel.12694 [doi] AB - BACKGROUND: Bismuth quadruple (BQT) and non-bismuth quadruple (N-BQT) therapies are the recommended first-line treatments for Helicobacter (H.) pylori infection. OBJECTIVE: To compare the efficacy of BQT and N-BQT in clinical practice in an area with high clarithromycin resistance, choosing the regimen on the basis of previous exposure to clarithromycin. METHODS: A total of 404 consecutive H pylori-positive, naive patients were enrolled. A total of 203 patients without previous exposure to clarithromycin received N-BQT, 100 patients for 10 days and 103 for 14 days, whereas 201 with previous exposure to clarithromycin received 10-day BQT. Efficacy and treatment-related adverse events were assessed. RESULTS AND CONCLUSIONS: Eradication rates by intention-to-treat analysis were 88.2% for N-BQT and 91.5% for BQT (P = .26); per-protocol analysis eradication rates were 91.2% and 95.8% for N-BQT and BQT, respectively (P = .07). Eradication rates were significantly higher with 14-day than 10-day CT (P < .003). Almost all patients had a good compliance with both N-BQT (95.6%) and BQT (95%). Adverse events occurred in 24.1% and 26.9% (P = .53) of patients in the N-BQT and BQT group, respectively. In conclusion, clarithromycin-containing non-bismuth or bismuth quadruple therapy, based on the knowledge of previous clarithromycin exposure, is effective and safe even in an area of high prevalence of clarithromycin-resistant H pylori strains. CI - (c) 2020 John Wiley & Sons Ltd. FAU - Romano, Marco AU - Romano M AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Gravina, Antonietta Gerarda AU - Gravina AG AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Nardone, Gerardo AU - Nardone G AD - Division of Gastroenterology, "Federico II" University, Naples, Italy. FAU - Federico, Alessandro AU - Federico A AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Dallio, Marcello AU - Dallio M AUID- ORCID: 0000-0003-4153-815X AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Martorano, Marco AU - Martorano M AD - Gastroenterology and Endoscopy Unit, Immacolata Hospital, Sapri, Italy. FAU - Mucherino, Caterina AU - Mucherino C AD - Gastroenterology and Endoscopy Unit, S. Anna-S. Sebastiano Hospital, Caserta, Italy. FAU - Romiti, Alessandra AU - Romiti A AD - Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy. FAU - Avallone, Luciana AU - Avallone L AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Granata, Lucia AU - Granata L AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Priadko, Katerina AU - Priadko K AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Compare, Debora AU - Compare D AD - Division of Gastroenterology, "Federico II" University, Naples, Italy. FAU - Tuccillo, Concetta AU - Tuccillo C AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Romito, Maria Raffaella AU - Romito MR AD - Division of Gastroenterology, "Federico II" University, Naples, Italy. FAU - Sgambato, Dolores AU - Sgambato D AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Miranda, Agnese AU - Miranda A AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Romano, Lorenzo AU - Romano L AD - Surgical Digestive Endoscopy, Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy. FAU - Loguercio, Carmelina AU - Loguercio C AD - Division of Hepatogastroenterology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy. FAU - Bazzoli, Franco AU - Bazzoli F AD - Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy. FAU - Zagari, Rocco Maurizio AU - Zagari RM AUID- ORCID: 0000-0001-9949-8619 AD - Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy. LA - eng PT - Comparative Study PT - Journal Article DEP - 20200420 PL - England TA - Helicobacter JT - Helicobacter JID - 9605411 RN - 0 (Antacids) RN - 0 (Anti-Bacterial Agents) RN - H1250JIK0A (Clarithromycin) RN - U015TT5I8H (Bismuth) SB - IM MH - Adult MH - Antacids/*therapeutic use MH - Anti-Bacterial Agents/pharmacology/*therapeutic use MH - Bismuth/*therapeutic use MH - Case-Control Studies MH - Clarithromycin/pharmacology/*therapeutic use MH - Drug Administration Schedule MH - Drug Resistance, Bacterial MH - Drug Therapy, Combination MH - Female MH - Helicobacter Infections/*drug therapy/microbiology MH - Helicobacter pylori/*drug effects MH - Humans MH - Male MH - Middle Aged MH - Patient Compliance MH - Treatment Outcome OTO - NOTNLM OT - Helicobacter pylori OT - Pylera OT - antimicrobial resistance OT - non-bismuth quadruple therapy EDAT- 2020/04/22 06:00 MHDA- 2021/04/29 06:00 CRDT- 2020/04/22 06:00 PHST- 2020/01/25 00:00 [received] PHST- 2020/03/14 00:00 [revised] PHST- 2020/03/24 00:00 [accepted] PHST- 2020/04/22 06:00 [pubmed] PHST- 2021/04/29 06:00 [medline] PHST- 2020/04/22 06:00 [entrez] AID - 10.1111/hel.12694 [doi] PST - ppublish SO - Helicobacter. 2020 Aug;25(4):e12694. doi: 10.1111/hel.12694. Epub 2020 Apr 20.