非D2受體結合藥物治療精神分裂症的臨床試驗
作者:
小柯機器人發布時間:2020/4/18 9:55:10
口服化合物SEP-363856不作用於多巴胺D2受體,但對痕量胺相關受體1(TAAR1)和1A型5-羥色胺(5-HT1A)具有激動劑活性,這些受體可能代表了一種新型的精神分裂症精神病治療藥物。
該課題組進行了一項隨機對照試驗,以評估SEP-363856在急性成人中的療效和安全性精神分裂症惡化。患者以1:1的比例隨機分配,每天接受一次SEP-363856(50 mg或75 mg)或安慰劑治療4周。
研究人員將120個患者分為SEP-363856組,另外125名分為安慰劑組。SEP-363856組的PANSS基線平均總得分為101.4,安慰劑組為99.7,第4周的平均變化分別為17.2分和9.7分(最小二乘均差7.5分; 95 %置信區間,11.9至3.0; P=0.001)。第4周時CGI-S和BNSS分數的下降通常與主要結果的下降方向相同,但並未針對多次比較進行調整。SEP-363856的不良事件包括嗜睡和胃腸道症狀; SEP-363856組中發生了1例心臟猝死。在試驗組中錐體外系症狀的發生率和脂質、糖化血紅蛋白和催乳激素水平的變化相似。
在這項為期4周的涉及精神分裂症急性加重患者的試驗中,一種非D2受體結合型抗精神病藥物SEP-363856與安慰劑相比,PANSS總得分的下降幅度更大。 為了確認SEP-363856的作用和副作用,以及相對於現有的精神分裂症患者藥物治療的療效,需要更長的和更大的試驗。
附:英文原文
Title: A Non–D2-Receptor-Binding Drug for the Treatment of Schizophrenia
Author: Kenneth S. Koblan, Ph.D.,, Justine Kent, M.D.,, Seth C. Hopkins, Ph.D.,, John H. Krystal, M.D.,, Hailong Cheng, Ph.D.,, Robert Goldman, Ph.D.,, and Antony Loebel, M.D.
Issue&Volume: 2020-04-15
Abstract: Abstract
Background
An oral compound, SEP-363856, that does not act on dopamine D2 receptors but has agonist activity at trace amine–associated receptor 1 (TAAR1) and 5-hydroxytryptamine type 1A (5-HT1A) receptors, may represent a new class of psychotropic agent for the treatment of psychosis in schizophrenia.
Methods
We performed a randomized, controlled trial to evaluate the efficacy and safety of SEP-363856 in adults with an acute exacerbation of schizophrenia. The patients were randomly assigned in a 1:1 ratio to receive once-daily treatment with SEP-363856 (50 mg or 75 mg) or placebo for 4 weeks. The primary end point was the change from baseline in the total score on the Positive and Negative Symptom Scale (PANSS; range, 30 to 210; higher scores indicate more severe psychotic symptoms) at week 4. There were eight secondary end points, including the changes from baseline in the scores on the Clinical Global Impressions Severity (CGI-S) scale and the Brief Negative Symptom Scale (BNSS).
Results
A total of 120 patients were assigned to the SEP-363856 group and 125 to the placebo group. The mean total score on the PANSS at baseline was 101.4 in the SEP-363856 group and 99.7 in the placebo group, and the mean change at week 4 was 17.2 points and 9.7 points, respectively (least-squares mean difference, 7.5 points; 95% confidence interval, 11.9 to 3.0; P=0.001). The reductions in the CGI-S and BNSS scores at week 4 were generally in the same direction as those for the primary outcome, but the results were not adjusted for multiple comparisons. Adverse events with SEP-363856 included somnolence and gastrointestinal symptoms; one sudden cardiac death occurred in the SEP-363856 group. The incidence of extrapyramidal symptoms and changes in the levels of lipids, glycated hemoglobin, and prolactin were similar in the trial groups.
Conclusions
In this 4-week trial involving patients with an acute exacerbation of schizophrenia, SEP-363856, a non–D2-receptor-binding antipsychotic drug, resulted in a greater reduction from baseline in the PANSS total score than placebo. Longer and larger trials are necessary to confirm the effects and side effects of SEP-363856, as well as its efficacy relative to existing drug treatments for patients with schizophrenia.
DOI: NJ202004163821607
Source: https://www.nejm.org/doi/full/10.1056/NEJMoa1911772