A Multicenter, Randomized, Double-blind, Placebo-controlled, Phase-II Trial to Assess Safety, and Efficacy of Sovateltide in the Treatment of Hypoxic-ischemic Encephalopathy in Neonates
试验速览
- 阶段
- 2 期
- 状态
- 招募中
- 入组人数
- 40
- 试验地点
- 4
- 主要终点
- Percentage of patients with death or disability (moderate/severe)
研究概览
简要总结
Sovateltide (PMZ-1620; IRL-1620) is targeted to be used as a "Treatment for hypoxic-ischemic encephalopathy in neonates," which is a life-threatening condition. Sovateltide augments neuronal progenitor cell differentiation and better mitochondrial morphology and biogenesis to activate a regenerative response in the central nervous system. The only treatment for HIE is therapeutic hypothermia with limited success, and studies indicate that sovateltide may be beneficial in these patients.
详细描述
Neonatal encephalopathy due to perinatal asphyxia is known as hypoxic-ischemic encephalopathy (HIE). HIE is a serious neurological complication affecting premature and full-term neonates, resulting from oxygen deprivation and reduced blood flow to the neonatal brain, leading to neuronal and white matter injury. Currently, no well-established therapies are considered effective for neonatal HIE. The standard of care at present includes supportive management to maintain cerebral perfusion, metabolic balance, and seizure detection and treatment. Currently, the only neuroprotective treatment for HIE is therapeutic hypothermia. However, improvement in patient outcomes following therapy has been moderate, with only 1 in 6 infants benefitting from therapeutic hypothermia.
Additionally, therapeutic hypothermia is time-sensitive, having a narrow therapeutic window wherein therapy must be initiated within 6 hours of delivery to be effective. Timely initiation is also restricted to those neonatal units having adequate equipment and trained staff for therapeutic hypothermia. Death or disability is reported to occur in 55% of infants receiving therapeutic hypothermia. To the best of our knowledge, there is no pharmacotherapy available for the treatment of HIE. Hence, there is a significant unmet medical need.
ETB receptors located widely throughout the CNS are a necessary component of the developing nervous system and also promote neurorestorative processes involving neurogenesis and synaptogenesis. There was an increased expression of neural progenitor markers, NeuroD1 and Double Cortin, and neural markers for mature neurons, NeuN was observed in the sovateltide group compared to vehicle. In addition, Sovateltide increased the expression of presynaptic markers (synapsin1 and synaptophysin) and post-synaptic marker (Postsynaptic Density-95) compared to vehicle. Our results suggest that sovateltide treatment helps recruit and differentiate neural progenitor cells and augments synaptogenesis and endogenous neurorestorative processes.
Sovateltide is a synthetic analog of ET-1 synthesized in 1992 and is a highly specific ETB receptor agonist. We and others have conducted studies to determine the effects of sovateltide upon its interaction with neural ETB receptors and have found that it enhances angiogenesis and neurogenesis and promotes repair and regeneration. This is indicated by neuronal cell proliferation, alleviation of oxidative stress, improvement of neurological and motor functions, and increase in anti-apoptotic markers. In our preclinical study, sovateltide was shown to have neuroprotective effects by promoting repair and regeneration in the brain in a neonatal rat model of HIE. The study showed that sovateltide treatment alone or in combination with hypothermia significantly (p<0.01) increased ETB receptor expression compared to vehicle-treated rat pups. In addition, enhanced VEGF and NGF expression were observed in rat pups treated with Sovateltide alone or in combination with hypothermia compared to vehicle-treated rat pups (p<0.0001, p<0.0001). Sovateltide alone and in combination with hypothermia also demonstrated a significantly reduced number of apoptotic cells compared to the control group. Furthermore, oxidative stress markers, including malondialdehyde, reduced glutathione, and superoxide dismutase was, significantly improved (p<0.0001, p<0.0001, p<0.0001) in those rat pups treated with sovateltide.
Sovateltide was safe and well-tolerated in a Phase I trial (CTRI/2016/11/007509) in healthy human volunteers. In addition, we conducted human studies in patients with cerebral ischemic stroke (NCT04046484, CTRI/2017/11/010654; NCT04047563, CTRI/2019/09/021373), Alzheimer's disease (NCT04052737, CTRI/2017/12/016394), and acute spinal cord injury (NCT04054414, CTRI/2018/12/016667) patients. In summary, about 300 patients have been treated with sovateltide, and no drug-related adverse event has been reported to date.
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
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
盲法说明
In this double-blind study, the patient and all relevant personnel involved with the conduct and interpretation of the study (including the investigator, investigational site personnel, and the sponsor or designee's staff) will remain blinded to the identity of the Investigational Product (IP) assigned and the randomization codes. The final randomization list will be kept strictly confidential, filed securely by the independent biostatistician, and accessible only to authorized persons as per the sponsor's standard operating procedures until the completion of the study.
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Either sex with ≥ 36 weeks of gestational age
- •Receiving supportive management for perinatal asphyxia
- •Perinatal depression, based on at least one of the following:
- •Apgar score of <5 at 10 minutes
- •Need for resuscitation (chest compressions or mechanical ventilation) at birth
- •pH <7.00 or base deficit ≥ 16 mmol/liter in the cord or arterial blood within 60 minutes of birth
- •Moderate/severe encephalopathy evident by at least 3 of 6 modified Sarnat criteria, present between 1 to 6 hours of birth.
- •Informed consent by one of the parents or a legal representative
排除标准
- •Gestational age <36 weeks
- •Admitted to hospital 12-hours after birth
- •A genetic or congenital condition that affects neuronal development
- •TORCH infection
- •Neonatal sepsis
- •Complex congenital heart disease
- •Severe dysmorphic feature
- •Microcephaly (head circumference < 2 Standard Deviations below mean for gestational age)
研究组 & 干预措施
Sovateltide + Standard of care
Patients will receive the best available standard of care. Dose of sovateltide (0.3 µg/kg) will be administered as an intravenous bolus over one minute every 3 hours on day 1, day 3, and day 6 post randomizations.
干预措施: Sovateltide along with standard treatment (Drug)
Normal Saline + Standard of care
Patients will receive the best available standard of care. Normal saline will be administered as an intravenous bolus over one minute every 3 hours on day 1, day 3, and day 6 post randomizations.
干预措施: Normal Saline along with standard treatment (Drug)
结局指标
主要结局
Percentage of patients with death or disability (moderate/severe)
时间窗: 24 months
Percentage of patients with death or disability (moderate/severe). Severe disability is defined as any of the following: a Bayley composite cognitive score \<70, a GMFCS grade of level 3 to 5, hearing impairment requiring hearing aids, or blindness (vision \<20/200). Moderate disability is defined as a composite cognitive score 70 - 84, in addition, one or more of the following: GMFCS grade of level 2, unilateral blindness (vision 20/200 in only one eye), or hearing impairment with no amplification/cochlear implant.
次要结局
- Seizures(24 months)
- Bayley Scales of Infant and Toddler Development Scores(24 months)
- Adverse events(24 months)
- Disabling cerebral palsy(24 months)
- Blindness or hearing impairment(24 months)
- Brain injury(14 days])
- Tolerance(7 days)