Department of Medicine, University of Pittsburgh, Pennsylvania, USA.
Am J Gastroenterol. 2010 Oct;105(10):2276-86. doi: 10.1038/ajg.2010.201. Epub 2010 May 25.
Pancreatic-enzyme replacement therapy (PERT) is the standard of care to prevent maldigestion, malnutrition, and excessive weight loss in patients with exocrine pancreatic insufficiency (EPI) due to chronic pancreatitis (CP) or pancreatic surgery (PS). Our objective was to assess the efficacy and safety of a new formulation of pancrelipase (pancreatin) delayed-release 12,000-lipase unit capsules (CREON) in patients with EPI due to CP or PS.
This was a double-blind, randomized, multicountry, placebo-controlled, parallel-group trial enrolling patients ≥18 years old with confirmed EPI due to CP or PS conducted in clinical research centers or hospitals. After a 5-day placebo run-in period (baseline), patients were randomized to pancrelipase (72,000 lipase units per meal; 36,000 per snack) or placebo for 7 days. All patients received an individually designed diet to provide at least 100 g of fat per day. The primary efficacy measure was the change in coefficient of fat absorption (CFA) from baseline to end of the double-blind period, analyzed using non-parametric analysis of covariance. Secondary outcomes included the coefficient of nitrogen absorption (CNA), clinical symptoms, and safety parameters.
In total, 25 patients (median age of 54 years, 76% male) received pancrelipase and 29 patients (median age of 50 years, 69% male) received placebo. Th e mean ± s.d. change from baseline in CFA was significantly greater with pancrelipase vs. placebo: 31.9 ± 18.6 vs. 8.7 ± 12.4 % ( P < 0.0001) [corrected]. Similarly, the mean ± s.d. change from baseline in CNA was greater for pancrelipase vs. placebo: 35.2 ± 29.1 vs. 8.9 ± 28.0 % ( P = 0.0005) [corrected].Greater improvements from baseline in stool frequency, stool consistency, abdominal pain, and flatulence were observed with pancrelipase vs. placebo. Treatment-emergent adverse events (TEAEs) were reported in five patients (20.0%) in the pancrelipase group and in six (20.7%) in the placebo group; the most common were gastrointestinal (GI) events and metabolism/nutrition disorders. There were no treatment discontinuations due to TEAEs.
Pancrelipase delayed-release 12,000-lipase unit capsules were effective in treating fat and nitrogen maldigestion with a TEAE rate similar to that of placebo in patients with EPI due to CP or PS.
胰酶替代疗法(PERT)是治疗慢性胰腺炎(CP)或胰腺手术后(PS)引起的胰腺外分泌功能不全(EPI)患者消化不良、营养不良和体重过度减轻的标准治疗方法。我们的目的是评估新配方的胰酶肠溶胶囊(胰酶)在 CP 或 PS 引起的 EPI 患者中的疗效和安全性。
这是一项双盲、随机、多国、安慰剂对照、平行组试验,纳入了在临床研究中心或医院接受治疗的≥18 岁、经证实患有 CP 或 PS 引起的 EPI 的患者。在为期 5 天的安慰剂导入期(基线)后,患者被随机分配至胰酶(每餐 72000 脂肪酶单位;每顿小吃 36000 脂肪酶单位)或安慰剂治疗 7 天。所有患者均接受个体化设计的饮食,以每天提供至少 100g 脂肪。主要疗效指标是从基线到双盲期结束时脂肪吸收系数(CFA)的变化,采用非参数协方差分析进行分析。次要结局包括氮吸收系数(CNA)、临床症状和安全性参数。
共有 25 名患者(中位年龄 54 岁,76%为男性)接受了胰酶治疗,29 名患者(中位年龄 50 岁,69%为男性)接受了安慰剂治疗。与安慰剂相比,胰酶组的 CFA 从基线的平均变化明显更大:31.9±18.6%比 8.7±12.4%(P<0.0001)[校正]。同样,胰酶组的 CNA 从基线的平均变化也大于安慰剂组:35.2±29.1%比 8.9±28.0%(P=0.0005)[校正]。与安慰剂相比,胰酶组的粪便频率、粪便稠度、腹痛和腹胀的改善更为明显。胰酶组有 5 名患者(20.0%)和安慰剂组有 6 名患者(20.7%)报告了治疗中出现的不良事件(TEAE);最常见的是胃肠道(GI)事件和代谢/营养障碍。没有因 TEAE 而停止治疗的情况。
胰酶肠溶胶囊在 CP 或 PS 引起的 EPI 患者中治疗脂肪和氮消化不良有效,其不良反应发生率与安慰剂相似。