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Other names | FPF-1070 |
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Cerebrolysin (developmental code name FPF-1070) is an experimental mixture of enzymatically-treated peptides derived from pig brain whose constituents can include brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF), nerve growth factor (NGF), and ciliary neurotrophic factor (CNTF). [3] [4] Although it is under preliminary study for its potential to treat various brain diseases, it is used as a therapy in dozens of countries in Eurasia.
Cerebrolysin has been studied for potential treatment of several neurodegenerative diseases, with only preliminary research, as of 2023. [4] No clear benefit in the treatment of acute stroke has been found, and an increased rate of spontaneous adverse effects requiring hospitalization is reported. [4] Some positive effects have been reported when cerebrolysin is used to treat vascular dementia. [5]
A 2023 review indicated that cerebrolysin or cerebrolysin‐like peptide mixtures from cattle brain likely provide no benefit for preventing all‐cause death in acute ischemic stroke, and that higher quality studies are needed. [4] In addition, cerebrolysin might cause a higher rate of spontaneous adverse events requiring hospitalization. [4]
Studies of ischemic stroke in Asian subpopulations found an absence of benefit. [6] A 2020 study suggested a lack of benefit in hemorrhagic stroke related to cerebral aneurysm. [7]
Reviews of preliminary research indicate a possible improvement in cognitive function using cerebrolysin for vascular dementia and Alzheimer's disease, although further high-quality research is needed. [5] [8]
Early studies have suggested potential use of cerebrolysin with a wide variety of neurodegenerative disorders, including traumatic brain injury, [9] [10] schizophrenia, [11] multiple sclerosis, [12] cerebral palsy [13] and spinal cord injury [14] [15] although research is still preliminary.
Upon injection, adverse effects of cerebrolysin include nausea, dizziness, headache, and sweating. [1] It is not recommended for use in people with epilepsy, kidney disease, or hypersensitivity to the compound constituents. [1]
In trials studying the use of cerebrolysin after acute stroke, there was no increased risk of "serious adverse events" requiring hospitalization. [4] These were specifically defined as "...any untoward medical occurrence that, at any dose, resulted in death, [was] life‐threatening, required inpatient hospitalisation or resulted in prolongation of existing hospitalisation, resulted in persistent or significant disability/incapacity, [was] a congenital anomaly/birth defect, or [was] a medically important event or reaction". [4]
Laboratory studies indicate there may be neurotrophic effects of cerebrolysin similar to endogenous mechanisms, although its specific molecular effects are not clear. [16]
Cerebrolysin is given by injection. [1] Some of the peptides in cerebrolysin are short-lived once in the blood (for example, the half-life of BDNF is only 10 minutes). [17]
Although cerebrolysin is used in Russia, Eastern European countries, China, and other Asian countries, its status as a government-approved drug is unclear. [4] It is only available by prescription from a physician. [1] According to the manufacturer, the European Medicines Agency has declared cerebrolysin as safe. [1]
It is not an approved drug in the United States. [18] [19]
Vascular dementia is dementia caused by a series of strokes. Restricted blood flow due to strokes reduces oxygen and glucose delivery to the brain, causing cell injury and neurological deficits in the affected region. Subtypes of vascular dementia include subcortical vascular dementia, multi-infarct dementia, stroke-related dementia, and mixed dementia.
Cerebral edema is excess accumulation of fluid (edema) in the intracellular or extracellular spaces of the brain. This typically causes impaired nerve function, increased pressure within the skull, and can eventually lead to direct compression of brain tissue and blood vessels. Symptoms vary based on the location and extent of edema and generally include headaches, nausea, vomiting, seizures, drowsiness, visual disturbances, dizziness, and in severe cases, death.
Ischemia or ischaemia is a restriction in blood supply to any tissue, muscle group, or organ of the body, causing a shortage of oxygen that is needed for cellular metabolism. Ischemia is generally caused by problems with blood vessels, with resultant damage to or dysfunction of tissue i.e. hypoxia and microvascular dysfunction. It also implies local hypoxia in a part of a body resulting from constriction.
Brain-derived neurotrophic factor (BDNF), or abrineurin, is a protein that, in humans, is encoded by the BDNF gene. BDNF is a member of the neurotrophin family of growth factors, which are related to the canonical nerve growth factor (NGF), a family which also includes NT-3 and NT-4/NT-5. Neurotrophic factors are found in the brain and the periphery. BDNF was first isolated from a pig brain in 1982 by Yves-Alain Barde and Hans Thoenen.
Stroke is a medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functioning properly.
Donepezil, sold under the brand name Aricept among others, is a medication used to treat dementia of the Alzheimer's type. It appears to result in a small benefit in mental function and ability to function. Use, however, has not been shown to change the progression of the disease. Treatment should be stopped if no benefit is seen. It is taken by mouth or via a transdermal patch.
Cognitive disorders (CDs), also known as neurocognitive disorders (NCDs), are a category of mental health disorders that primarily affect cognitive abilities including learning, memory, perception, and problem-solving. Neurocognitive disorders include delirium, mild neurocognitive disorders, and major neurocognitive disorder. They are defined by deficits in cognitive ability that are acquired, typically represent decline, and may have an underlying brain pathology. The DSM-5 defines six key domains of cognitive function: executive function, learning and memory, perceptual-motor function, language, complex attention, and social cognition.
Neuroprotection refers to the relative preservation of neuronal structure and/or function. In the case of an ongoing insult the relative preservation of neuronal integrity implies a reduction in the rate of neuronal loss over time, which can be expressed as a differential equation.
Organic brain syndrome, also known as organic brain disease, organic brain damage, organic brain disorder, organic mental syndrome, or organic mental disorder, refers to any syndrome or disorder of mental function whose cause is alleged to be known as organic (physiologic) rather than purely of the mind. These names are older and nearly obsolete general terms from psychiatry, referring to many physical disorders that cause impaired mental function. They are meant to exclude psychiatric disorders. Originally, the term was created to distinguish physical causes of mental impairment from psychiatric disorders, but during the era when this distinction was drawn, not enough was known about brain science for this cause-based classification to be more than educated guesswork labeled with misplaced certainty, which is why it has been deemphasized in current medicine. While mental or behavioural abnormalities related to the dysfunction can be permanent, treating the disease early may prevent permanent damage in addition to fully restoring mental functions. An organic cause to brain dysfunction is suspected when there is no indication of a clearly defined psychiatric or "inorganic" cause, such as a mood disorder.
Tropomyosin receptor kinase B (TrkB), also known as tyrosine receptor kinase B, or BDNF/NT-3 growth factors receptor or neurotrophic tyrosine kinase, receptor, type 2 is a protein that in humans is encoded by the NTRK2 gene. TrkB is a receptor for brain-derived neurotrophic factor (BDNF). The standard pronunciation for this protein is "track bee".
The prevention of dementia involves reducing the number of risk factors for the development of dementia, and is a global health priority needing a global response. Initiatives include the establishment of the International Research Network on Dementia Prevention (IRNDP) which aims to link researchers in this field globally, and the establishment of the Global Dementia Observatory a web-based data knowledge and exchange platform, which will collate and disseminate key dementia data from members states. Although there is no cure for dementia, it is well established that modifiable risk factors influence both the likelihood of developing dementia and the age at which it is developed. Dementia can be prevented by reducing the risk factors for vascular disease such as diabetes, high blood pressure, obesity, smoking, physical inactivity and depression. A study concluded that more than a third of dementia cases are theoretically preventable. Among older adults both an unfavorable lifestyle and high genetic risk are independently associated with higher dementia risk. A favorable lifestyle is associated with a lower dementia risk, regardless of genetic risk. In 2020, a study identified 12 modifiable lifestyle factors, and the early treatment of acquired hearing loss was estimated as the most significant of these factors, potentially preventing up to 9% of dementia cases.
NeuroAiD is a herbal supplement proposed to support functional recovery after strokes. There were two formulations of NeuroAiD: MLC601 (NeuroAiDTM) was first developed. Since 2018 MLC601 formulation is no longer on the market, and has been replaced by MLC901 (NeuroAiDTMII), a simplified formulation containing only 9 botanical ingredients. It can be administered orally or through a feeding tube.
CX-614 is an ampakine drug developed by Cortex Pharmaceuticals. It has been investigated for its effect on AMPA receptors.
Repinotan (BAYx3702), an aminomethylchroman derivative, is a selective 5-HT1A receptor full agonist with high potency and efficacy. It has neuroprotective effects in animal studies, and was trialed in humans for reducing brain injury following head trauma. It was subsequently trialed up to phase II for treatment of stroke, but while side effects were mild and consisted mainly of nausea, repinotan failed to demonstrate sufficient efficacy to justify further clinical trials. However, repinotan continues to be investigated for other applications, and was found to be effective at counteracting the respiratory depression produced by morphine, though with slight reduction in analgesic effects.
The neurobiological effects of physical exercise involve possible interrelated effects on brain structure, brain function, and cognition. Research in humans has demonstrated that consistent aerobic exercise may induce improvements in certain cognitive functions, neuroplasticity and behavioral plasticity; some of these long-term effects may include increased neuron growth, increased neurological activity, improved stress coping, enhanced cognitive control of behavior, improved declarative, spatial, and working memory, and structural and functional improvements in brain structures and pathways associated with cognitive control and memory. The effects of exercise on cognition may affect academic performance in children and college students, improve adult productivity, preserve cognitive function in old age, preventing or treating certain neurological disorders, and improving overall quality of life.
Semax is a drug which is used mostly in Russia for a broad range of conditions but predominantly for its purported nootropic, neuroprotective, and neurorestorative properties. Semax has not been evaluated, approved for use, or marketed in most other countries. It is prescribed in eastern Europe and Russia for brain trauma.
ALTO-100, previously known as NSI-189, is a drug described as a neurogenesis stimulant and brain-derived neurotrophic factor (BDNF) modulator which is under development for the treatment of major depressive disorder (MDD), bipolar depression, and post-traumatic stress disorder (PTSD). There has also been interest in ALTO-100 for treatment of cognitive impairment and neurodegeneration. ALTO-100 is under development by Alto Neuroscience and was previously under development by Neuralstem, Inc. It is taken by mouth.
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Phenserine is a synthetic drug which has been investigated as a medication to treat Alzheimer's disease (AD), as the drug exhibits neuroprotective and neurotrophic effects.
Neurotrophin mimetics are small molecules or peptide like molecules that can modulate the action of the neurotrophin receptor. One of the main causes of neurodegeneration involves changes in the expression of neurotrophins (NTs) and/or their receptors. Indeed, these imbalances or changes in their activity, lead to neuronal damage resulting in neurological and neurodegenerative conditions. The therapeutic properties of neurotrophins attracted the focus of many researchers during the years, but the poor pharmacokinetic properties, such as reduced bioavailability and low metabolic stability, the hyperalgesia, the inability to penetrate the blood–brain barrier and the short half-lives render the large neurotrophin proteins not suitable to be implemented as drugs.