Nerve Growth Factor Encapsulated With 2-methacryloyloxyethyl Phosphorylcholine Nanocapsules in the Treatment of Amyotrophic Lateral Sclerosis
试验速览
- 阶段
- 2 期
- 状态
- 尚未招募
- 发起方
- 入组人数
- 60
- 主要终点
- Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R)
研究概览
简要总结
Amyotrophic lateral sclerosis (ALS) is one of the most lethal neurodegenerative diseases, with most patients dying from respiratory failure 3-5 years after the onset. The purpose of this study is to explore the efficacy and safety of nerve growth factor (NGF) encapsulated with 2-methacryloyloxyethyl phosphorylcholine (MPC) nanocapsules in the treatment of ALS patients.
详细描述
Amyotrophic lateral sclerosis (ALS) is one of the most lethal neurodegenerative diseases. Most patients die due to respiratory failure 3-5 years after disease onset. Due to the low permeability and blocking of the blood-brain barrier (BBB) on more than 95% of all kinds of drugs, the drug treatment of ALS is relatively limited. Although a series of studies have been carried out on new therapies to ALS, such as monoclonal antibodies represented by ozanezumab and antisense oligonucleotides represented by tofersen, the conclusions are mostly limited to safety evaluation.
Nerve growth factor (NGF) provides protection and/or regeneration for neurons in the peripheral and central nervous system (CNS), which is considered to be a nerve regeneration agent with great therapeutic potential. The phase I clinical trial of intravenous recombinant human nerve growth factor (rhNGF) showed that, on the premise of ensuring safety, only a trace of NGF (3.6-7.38 ng/ml within 5 minutes) was detected in the plasma samples of the subjects who were injected with rhNGF 1.0 μg/kg (the maximum dose of this trial design).
In purpose of improving the therapeutic effect of NGF, the investigators plan to encapsulate NGF in nanoparticles linked by 2-methacryloyloxyethyl phosphorylcholine (MPC), consisting of one molecule of choline and one molecule of acetylcholine analog. After intravenous administration, the drug particles are effectively delivered to the CNS via receptor-mediated transcytosis (RMT) with the help of acetylcholine transporter and choline transporter widely expressed on brain capillary endothelial cells. The animal experiments have confirmed that intravenous injection of MPC encapsulated NGF capsule [n(NGF)] can effectively prolong the survival time of SOD1G93A mice, reduce the body weight loss and delay the time of dyskinesia onset compared with NGF. Similar results were obtained in the rhesus monkey model.
The purpose of this study is to explore the efficacy and safety of NGF encapsulated with MPC nanocapsules in the treatment of ALS patients.
This is a prospective, randomized, open-label, blinded endpoint (PROBE) clinical trial. The trial planned to enroll 60 ALS patients, aged 18-80 years, with disease duration 6 months to 3 years, with forced vital capacity (FVC) ≥ 85% of predicted value.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •18-80 years old;
- •Confirmed or possible familial or sporadic ALS diagnosed according to the revised El Escorial criteria;
- •6 months ≤disease duration ≤ 3 years, (onset time is defined as the time of the first occurrence of myasthenia);
- •Forced vital capacity (FVC) ≥ 85% of predicted value (based on gender, height and age);
- •Informed consent signed.
排除标准
- •Patients undergoing endotracheal intubation, non-invasive or mechanical ventilation;
- •Patients with diaphragmatic pacemakers;
- •Allergy to any component of the investigational medication, or any other allergic history that researchers deem necessary to be vigilant about;
- •Local skin infection or other suspicious signs of infection at the injection site;
- •Known hemorrhagic tendency (including but not limited to: platelet count <100×109/ L; on therapy of heparin, activated partial thromboplastin time (APTT) ≥35s; on therapy of warfarin, international normalized ratio (INR) >1.7; on therapy of novel oral anticoagulants; with direct thrombin or factor Xa inhibitor; accompanied with coagulopathy such as hemophilia);
- •Severe cardiac insufficiency before randomization (comply with New York College of Cardiology (NYHA) Cardiac Function Class III, IV);
- •Suffering from infectious diseases: hepatitis, tuberculosis, acquired immunodeficiency syndrome, etc;
- •Psychiatric disorders diagnosed according to Diagnostic and Statistical Manual of Mental Disorders (DSM-V) diagnostic criteria; or with suicidal intentions;
- •Women/men with desire to conceive during the experiment, and patients with pregnancy and lactation;
- •Difficulty in verbal communication, inability to communicate, understand or follow instructions, inability to cooperate with treatment and evaluation;
- •Combining with history of alcohol and drug abuse;
- •Unable to cooperate in follow-up due to geographical or other reasons;
- •Patients participated in other clinical trials or used other biologics, drugs, or devices under study.
研究组 & 干预措施
MPC-NGF T1
19.2mg MPC wrapped NGF per week for 13 times
干预措施: Nerve Growth Factor (Drug)
MPC-NGF T2
11.84mg MPC wrapped NGF per week for 13 times
干预措施: Nerve Growth Factor (Drug)
X-NGF
19.2mg NGF per week for 13 times
干预措施: Nerve Growth Factor (Drug)
结局指标
主要结局
Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R)
时间窗: 84±7 days
Change in Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R) score (ALSFRS-R scores from 0 to 48, score decline indicates worse outcome of ALS patients, or disease progression and disability).
次要结局
- Tolerance(28±4 days, 84±7 days)
- Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R)(28±4 days, 120±7 days, 180±14 days, 1 year ±14 days)
- Lung function: forced vital capacity(28±4 days, 84±7 days, 120±7 days)
- Lung function: transcutaneous oxygen saturation(28±4 days, 84±7 days, 120±7 days)
- Lung function: slow vital capacity(28±4 days, 84±7 days, 120±7 days)
- Endpoint events(28±4 days, 84±7 days, 120±7 days, 180±14 days, 1 year ±14 days)
- Muscle involvement(120±7 days)
研究者
yilong Wang
Executive Vice-President
Beijing Tiantan Hospital