健康人吸入莫格莫辛的药代动力学和药效学。

IF 3.4 3区 医学 Q1 RESPIRATORY SYSTEM
Bruce C Trapnell, Brenna C Carey, Brian R Robinson
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引用次数: 0

摘要

背景:吸入molgramostim是一种重组人粒细胞-巨噬细胞集落刺激因子(GM-CSF),是一种治疗自身免疫性肺泡蛋白沉积症(aPAP)的有前途的研究性药物治疗方法;然而,其在健康受试者中的药理作用尚未见报道。方法:这项随机、双盲、安慰剂对照、单中心、1期临床试验通过单次递增剂量(SAD)和多次递增剂量(MAD)研究,评估健康成人吸入莫格莫stim的安全性、耐受性、药代动力学和药理学:一次150、300或600微克给药,或连续6次每日300或600微克给药,评估时间分别为28天或34天。主要终点是安全性,这是根据单次和多次吸入莫格莫stim后治疗发生的ae的数量和严重程度来评估的。结果:共纳入42例受试者,其中SAD研究18例,MAD研究24例;所有人都完成了研究。健康人群吸入莫格莫stim耐受性良好,两项研究均未观察到剂量限制性安全问题或抗药物抗体形成。在给药30分钟后血清中可检测到GM-CSF,在三种剂量下均在2小时达到峰值,在SAD和MAD研究中消除半衰期为1.7±0.0至5.9±0.9小时。在SAD和MAD研究中,全身GM-CSF暴露都是非线性的。吸入molgramostim导致白细胞(WBC)计数和白细胞亚群迅速增加,并在8小时(SAD)或15-21天(MAD)后恢复正常。呼出的一氧化氮在所有剂量下都保持在正常范围内,但在600 μg剂量下,数值上增加,但不显著。结论:在健康人群中,吸入莫格莫stim耐受性良好,并导致全身暴露在picogram水平,这对血液白细胞水平具有预期的PD效应,但大部分仍保持在正常范围内。试验注册号:NCT02468908;稿号:2013-001687-32。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pharmacokinetics and pharmacodynamics of inhaled molgramostim in healthy people.

Background: Inhaled molgramostim, a form of recombinant human granulocyte-macrophage colony stimulating factor (GM-CSF), is a promising investigational pharmacotherapy for autoimmune pulmonary alveolar proteinosis (aPAP); however, its pharmacology in healthy subjects has not been reported.

Methods: This randomised, double-blind, placebo-controlled, single-centre, phase 1 clinical trial assessed the safety, tolerability, pharmacokinetics and pharmacodynamics of inhaled molgramostim in healthy adults in single ascending dose (SAD) and multiple ascending dose (MAD) studies: one 150, 300 or 600 µg administration or six consecutive daily 300 or 600 µg administrations with evaluations over 28 or 34 days, respectively. The primary endpoint was safety, which was evaluated based on the number and severity of treatment-emergent AEs following single and multiple inhaled doses of molgramostim.

Results: 42 subjects were enrolled including 18 in the SAD study and 24 in the MAD study; all completed the study. Inhaled molgramostim in healthy people was well tolerated and no dose-limiting safety concerns or anti-drug antibody formation were observed in either study. GM-CSF was measurable in serum 30 min after administration of inhaled molgramostim, peaked at 2 hours for all three doses and had an elimination half-life of 1.7±0.0 to 5.9±0.9 hours in the SAD and MAD studies. Systemic GM-CSF exposure was non-linear in both the SAD and MAD studies. Inhaled molgramostim caused a rapid increase in white blood cells (WBC) counts and leucocyte subsets that normalised by 8 hours (SAD) or 15-21 days (MAD). Fractional exhaled nitric oxide remained within the normal range at all doses but was numerically, but not significantly, increased at the 600 μg dose.

Conclusions: In healthy people, inhaled molgramostim was well-tolerated and resulted in systemic exposure at picogram levels, which had the expected PD effects on blood leucocyte levels that mostly remained within normal ranges.

Trial registration number: NCT02468908; EudraCT No. 2013-001687-32.

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来源期刊
BMJ Open Respiratory Research
BMJ Open Respiratory Research RESPIRATORY SYSTEM-
CiteScore
6.60
自引率
2.40%
发文量
95
审稿时长
12 weeks
期刊介绍: BMJ Open Respiratory Research is a peer-reviewed, open access journal publishing respiratory and critical care medicine. It is the sister journal to Thorax and co-owned by the British Thoracic Society and BMJ. The journal focuses on robustness of methodology and scientific rigour with less emphasis on novelty or perceived impact. BMJ Open Respiratory Research operates a rapid review process, with continuous publication online, ensuring timely, up-to-date research is available worldwide. The journal publishes review articles and all research study types: Basic science including laboratory based experiments and animal models, Pilot studies or proof of concept, Observational studies, Study protocols, Registries, Clinical trials from phase I to multicentre randomised clinical trials, Systematic reviews and meta-analyses.
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