van Rensburg C J, Honiball P J, Grundling H D, van Zyl J H, Spies S K, Eloff F P, Simjee A E, Segal I, Botha J F, Cariem A K, Marks I N, Theron I, Bethke T D
Department of Medicine, University of Stellenbosch, South Africa.
Aliment Pharmacol Ther. 1996 Jun;10(3):397-401. doi: 10.1111/j.0953-0673.1996.00397.x.
Pantoprazole is a substituted benzimidazole which is a potent inhibitor of gastric acid secretion by its action upon H+, K+-ATPase.
Pantoprazole 40 mg and 80 mg were compared in a randomized double-blind study in 192 out-patients with stage II or III (Savary-Miller classification) reflux oesophagitis. Patients received either pantoprazole 40 mg (n = 97) or pantoprazole 80 mg (n = 95), once daily before breakfast for 4 weeks. Treatment was extended for a further 4 weeks if the oesophagitis had not healed.
After 4 weeks complete healing of the reflux oesophagitis was seen in 78% of protocol-correct patients given pantoprazole 40 mg daily (n = 86), and in 72% in the 80 mg (n = 87) group. The cumulative healing rates after 8 weeks were 95 and 94%, respectively (P > 0.05, Cochran-Mantel-Haenszel), and time until healing of oesophagitis comparable in both groups. Differences between doses were also not significant in an intention-to-treat analysis. Both dosing schedules were well tolerated and the patients experienced remarkable symptom relief. No adverse event or changes in laboratory values of clinical significance could definitely be ascribed to the trial medication.
The 40 mg pantoprazole dosage is comparable to 80 mg in reflux oesophagitis, both in efficacy and tolerability.
泮托拉唑是一种取代苯并咪唑类药物,通过作用于H⁺,K⁺-ATP酶而成为胃酸分泌的强效抑制剂。
在一项随机双盲研究中,对192例II期或III期(Savary-Miller分类)反流性食管炎门诊患者比较了40毫克和80毫克泮托拉唑的疗效。患者分别接受40毫克泮托拉唑(n = 97)或80毫克泮托拉唑(n = 95)治疗,每天早餐前服用一次,共4周。如果食管炎未愈合,则治疗再延长4周。
4周后,每日服用40毫克泮托拉唑的方案正确患者(n = 86)中78%的反流性食管炎完全愈合,80毫克组(n = 87)为72%。8周后的累积愈合率分别为95%和94%(P>0.05, Cochr an-Mantel-Haenszel检验),两组食管炎愈合时间相当。在意向性分析中,剂量之间的差异也不显著。两种给药方案耐受性均良好,患者症状明显缓解。没有不良事件或具有临床意义的实验室值变化可明确归因于试验用药。
在反流性食管炎中,40毫克泮托拉唑剂量在疗效和耐受性方面与80毫克相当。