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Mglur5 Modulation As a Treatment for Parkinson's Disease
mGluR5 modulation as a treatment for Parkinson’s disease Kyle Farmer A thesis submitted to the Faculty of Graduate & Postdoctoral Affairs in partial fulfillment of requirements of the degree of Doctor of Philosophy in Neuroscience Carleton University Ottawa, ON Copyright © 2018 – Kyle Farmer ii Space Abstract Parkinson’s disease is an age related neurodegenerative disease. Current treatments do not reverse the degenerative course; rather they merely manage symptom severity. As such there is an urgent need to develop novel neuroprotective therapeutics. There is an additional need to stimulate and promote inherent neuro-recovery processes. Such processes could maximize the utilization of the existing dopamine neurons, and/or recruit alternate neuronal pathways to promote recovery. This thesis investigates the therapeutic potential of the mGluR5 negative allosteric modulator CTEP in a 6-hydroxydopamine mouse model of Parkinson’s disease. We found that CTEP caused a modest reduction in the parkinsonian phenotype after only 1 week of treatment. When administered for 12 weeks, CTEP was able to completely reverse any parkinsonian behaviours and resulted in full dopaminergic striatal terminal re-innervation. Furthermore, restoration of the striatal terminals resulted in normalization of hyperactive neurons in both the striatum and the motor cortex. The beneficial effects within the striatum iii were associated with an increase in activation of mTOR and p70s6K activity. Accordingly, the beneficial effects of CTEP can be blocked if co-administered with the mTOR complex 1 inhibitor, rapamycin. In contrast, CTEP had differential effects in the motor cortex, promoting ERK1/2 and CaMKIIα instead of mTOR. Together these data suggest that modulating mGluR5 with CTEP may have clinical significance in treating Parkinson’s disease. -
Metabotropic Glutamate Receptors
mGluR Metabotropic glutamate receptors mGluR (metabotropic glutamate receptor) is a type of glutamate receptor that are active through an indirect metabotropic process. They are members of thegroup C family of G-protein-coupled receptors, or GPCRs. Like all glutamate receptors, mGluRs bind with glutamate, an amino acid that functions as an excitatoryneurotransmitter. The mGluRs perform a variety of functions in the central and peripheral nervous systems: mGluRs are involved in learning, memory, anxiety, and the perception of pain. mGluRs are found in pre- and postsynaptic neurons in synapses of the hippocampus, cerebellum, and the cerebral cortex, as well as other parts of the brain and in peripheral tissues. Eight different types of mGluRs, labeled mGluR1 to mGluR8, are divided into groups I, II, and III. Receptor types are grouped based on receptor structure and physiological activity. www.MedChemExpress.com 1 mGluR Agonists, Antagonists, Inhibitors, Modulators & Activators (-)-Camphoric acid (1R,2S)-VU0155041 Cat. No.: HY-122808 Cat. No.: HY-14417A (-)-Camphoric acid is the less active enantiomer (1R,2S)-VU0155041, Cis regioisomer of VU0155041, is of Camphoric acid. Camphoric acid stimulates a partial mGluR4 agonist with an EC50 of 2.35 osteoblast differentiation and induces μM. glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1. Purity: ≥98.0% Purity: ≥98.0% Clinical Data: No Development Reported Clinical Data: No Development Reported Size: 10 mM × 1 mL, 100 mg Size: 10 mM × 1 mL, 5 mg, 10 mg, 25 mg (2R,4R)-APDC (R)-ADX-47273 Cat. No.: HY-102091 Cat. No.: HY-13058B (2R,4R)-APDC is a selective group II metabotropic (R)-ADX-47273 is a potent mGluR5 positive glutamate receptors (mGluRs) agonist. -
Edison Healthcare Insight
Edison Healthcare Insight December 2020 Published by Edison Investment Research The Edison healthcare team www.edisongroup.com Maxim Jacobs Dr Nathaniel Calloway Max joined Edison’s healthcare team in December Nathaniel Calloway joined the healthcare team in 2014. Prior to this he worked as a senior analyst at December 2015. Before Edison, he performed Guidepoint Global. Max has also previously worked healthcare investment research for a fund at Bishop as a senior analyst at Ridgemark Capital, a sector Rosen and for Wainscott Capital Partners. Prior to head at Broadfin Capital and as a senior analyst at his role as an analyst he performed molecular Mehta Partners. He is a CFA charter holder. neuroscience research at Cornell Medical School and holds a PhD in chemistry from Cornell. He has published eight scientific papers on topics ranging from physical chemistry to immunology, and he has been recognised as an American Heart Association fellow and an American Chemical Society Medicinal Chemistry fellow. Pooya Hemami Dr John Savin Pooya is a licensed optometrist with over five years John is an analyst working on biotech, pharma, of experience in life sciences equity research. Prior medical device and diagnostics companies. As to joining Edison, he covered the Canadian founder CEO of Physiomics, he devised the healthcare sector as a research analyst at strategy, raised funds and took the company to AIM Desjardins Capital Markets. He holds a doctor of in 2004. At Greig Middleton, John was director in optometry degree from the University of Montreal, charge of the pharma and biotech analyst team and and an MBA (finance concentration) from McGill worked with corporate finance on fund-raising, IPOs University. -
Clinical Expertise and Patient Focus November, 2019
Clinical Expertise and Patient Focus November, 2019 1 Forward-Looking Statement Safe-Harbor This presentation contains forward-looking statements about Minerva whether any of our therapeutic products will advance further in the Neurosciences which are subject to the safe harbor provisions of the clinical trials process and whether and when, if at all, they will receive Private Securities Litigation Reform Act of 1995, as amended. Forward- final approval from the U.S. Food and Drug Administration or looking statements are statements that are not historical facts, reflect equivalent foreign regulatory agencies and for which indications; management’s expectations as of the date of this presentation, and whether the results of future clinical trials of roluperidone, seltorexant, involve certain risks and uncertainties. Forward-looking statements MIN-117 and MIN-301, if any, will be consistent with the results of past include, but are not limited to: the benefits, efficacy and safety of our clinical trials; whether roluperidone, seltorexant, MIN-117 and MIN-301 new formulations; the potential of the diagnosis and treatment of will be successfully marketed if approved; whether our therapeutic negative symptoms of schizophrenia and other diseases; whether product discovery and development efforts will be successful; our studies performed on analogs or backups of our compounds are a good ability to achieve the results contemplated by our co-development predictor of the clinical efficacy of our compounds; statements with agreements; the strength -
Minerva Neurosciences Announces the Results
Minerva Neurosciences Announces the Results of the Phase 3 Trial of Roluperidone for the Treatment of Negative Symptoms of Schizophrenia Following the Completion of the 40-Week Open-Label Extension May 11, 2021 Key results Continuous improvement in negative symptoms as measured by Positive and Negative Syndrome Scale (PANSS) Marder Negative Symptom Factor Score (NSFS) observed over one year (12-week double-blind and 40-week open-label periods) in patients receiving both 64 mg and 32 mg doses Continuous improvement in Personal and Social Performance (PSP) total score over one year, suggesting improvement in patients’ everyday life functioning Favorable safety profile with few serious adverse events and no evidence of somnolence, extrapyramidal side effects or weight gain Limited number of relapses observed over one year Results provide additional support for continued development of roluperidone and submission of NDA following completion of bioequivalence study and other work to address FDA comments from the Company’s Type C meeting held on November 10, 2020 Findings to be discussed during Q1 2021 conference call and webcast on May 12, 2021, at 8:30 a.m. WALTHAM, Mass., May 11, 2021 (GLOBE NEWSWIRE) -- Minerva Neurosciences, Inc. (Nasdaq: NERV), a clinical-stage biopharmaceutical company focused on the development of therapies to treat central nervous system disorders, today announced results from the 40-week open-label extension (OLE) of its phase 3 trial of roluperidone for the treatment of negative symptoms (NS) of schizophrenia. The OLE followed the 12-week double-blind, placebo-controlled portion of this trial. During the OLE, both investigators and patients were blinded to the roluperidone dose received (see “About the trial” below). -
Glutamate and Microglia Activation As a Driver of Dendritic Apoptosis: a Core Pathophysiological Mechanism to Understand Schizop
Parellada and Gassó Translational Psychiatry (2021) 11:271 https://doi.org/10.1038/s41398-021-01385-9 Translational Psychiatry PERSPECTIVE Open Access Glutamate and microglia activation as a driver of dendritic apoptosis: a core pathophysiological mechanism to understand schizophrenia Eduard Parellada 1,2,3 and Patricia Gassó 1,2,4 Abstract Schizophrenia disorder remains an unsolved puzzle. However, the integration of recent findings from genetics, molecular biology, neuroimaging, animal models and translational clinical research offers evidence that the synaptic overpruning hypothesis of schizophrenia needs to be reassessed. During a critical period of neurodevelopment and owing to an imbalance of excitatory glutamatergic pyramidal neurons and inhibitory GABAergic interneurons, a regionally-located glutamate storm might occur, triggering excessive dendritic pruning with the activation of local dendritic apoptosis machinery. The apoptotic loss of dendritic spines would be aggravated by microglia activation through a recently described signaling system from complement abnormalities and proteins of the MHC, thus implicating the immune system in schizophrenia. Overpruning of dendritic spines coupled with aberrant synaptic plasticity, an essential function for learning and memory, would lead to brain misconnections and synaptic inefficiency underlying the primary negative symptoms and cognitive deficits of schizophrenia. This driving hypothesis has relevant therapeutic implications, including the importance of pharmacological interventions during -
“Indagandis Sedibus Et Causis Morborum” Potential Conflicts of Interest (January 2016 to Present)
Siegfried KASPER Emeritus Chair Department of Psychiatry and Psychotherapy Brain Research Institute “Indagandis sedibus et causis morborum” www.mghcme.org Potential Conflicts of Interest (January 2016 to Present) Dr. Kasper has received grant/research support from Lundbeck; he has served as a consultant or on advisory boards for Janssen, Lundbeck, and Schwabe; and he has served on speakers bureaus for Angelini, Krka Pharma, Lundbeck, Neuraxpharma, Schwabe, Servier and Sun Pharma. www.mghcme.org Schizophrenias Are Multifactorial Diseases Rujescu, 2019 www.mghcme.org Schizophrenia: Course of illness Millan et al., Nat Rev Drug Discov 2016 www.mghcme.org Schizophrenia: Impact of Symptomatology Work Quality of Social life Function Positive Symptoms Negative Symptoms o Hallucination o Blunted affect o Delusion o Anhedonia o Catatonia o Sozcial withdrawn o … o Etc… Number of Side Relapses Effects Cognitive Symptoms Affective Symptoms o Working Memory o Anxiety and Stress o Processing Speed o Depression Mortality Attention Suicidality Life o o Expectancy o … o … Response Remission Recovery www.mghcme.org Selecting Suitable Treatments for Schizophrenia Can Pose a Dilemma for Psychiatrists In selecting treatments for schizophrenia, physicians consider variables related to the:1,2 Patient Illness Medication Environment An ‘ideal’ medication is one that can:2 • Treat psychosis • Lead to symptom resolution The dilemma for physicians: • Lead to remission providing effective treatment while 3 • Overcome treatment resistance avoiding side effects • Prevent relapse • Have a benign side-effect profile The need to assess how side effects • Alleviate anxiety and depression interact with the patient’s life4-6 1. Kane et al. Dialogues Clin Neurosci 2010;12(3):345–357 2. -
GPCR/G Protein
Inhibitors, Agonists, Screening Libraries www.MedChemExpress.com GPCR/G Protein G Protein Coupled Receptors (GPCRs) perceive many extracellular signals and transduce them to heterotrimeric G proteins, which further transduce these signals intracellular to appropriate downstream effectors and thereby play an important role in various signaling pathways. G proteins are specialized proteins with the ability to bind the nucleotides guanosine triphosphate (GTP) and guanosine diphosphate (GDP). In unstimulated cells, the state of G alpha is defined by its interaction with GDP, G beta-gamma, and a GPCR. Upon receptor stimulation by a ligand, G alpha dissociates from the receptor and G beta-gamma, and GTP is exchanged for the bound GDP, which leads to G alpha activation. G alpha then goes on to activate other molecules in the cell. These effects include activating the MAPK and PI3K pathways, as well as inhibition of the Na+/H+ exchanger in the plasma membrane, and the lowering of intracellular Ca2+ levels. Most human GPCRs can be grouped into five main families named; Glutamate, Rhodopsin, Adhesion, Frizzled/Taste2, and Secretin, forming the GRAFS classification system. A series of studies showed that aberrant GPCR Signaling including those for GPCR-PCa, PSGR2, CaSR, GPR30, and GPR39 are associated with tumorigenesis or metastasis, thus interfering with these receptors and their downstream targets might provide an opportunity for the development of new strategies for cancer diagnosis, prevention and treatment. At present, modulators of GPCRs form a key area for the pharmaceutical industry, representing approximately 27% of all FDA-approved drugs. References: [1] Moreira IS. Biochim Biophys Acta. 2014 Jan;1840(1):16-33. -
Roluperidone (MIN-101)
Cognitive Vitality Reports® are reports written by neuroscientists at the Alzheimer’s Drug Discovery Foundation (ADDF). These scientific reports include analysis of drugs, drugs-in- development, drug targets, supplements, nutraceuticals, food/drink, non-pharmacologic interventions, and risk factors. Neuroscientists evaluate the potential benefit (or harm) for brain health, as well as for age-related health concerns that can affect brain health (e.g., cardiovascular diseases, cancers, diabetes/metabolic syndrome). In addition, these reports include evaluation of safety data, from clinical trials if available, and from preclinical models. Roluperidone (MIN-101) Evidence Summary The evidence for roluperidone is limited to a single randomized controlled trial in schizophrenia patients. Roluperidone may interact with medications that inhibit CYP2D6. Neuroprotective Benefit: Roluperidone improved several cognitive scores in schizophrenia patients, but it is not known whether it would benefit age-related cognitive decline or dementia. Aging and related health concerns: No studies have tested roluperidone for age-related conditions. Safety: Common adverse events with roluperidone included headache and anxiety based on a study in schizophrenia patients, though a few serious adverse events were also observed (vomiting, syncope, bradycardia). May interact with CYP2D6 inhibitors. 1 Availability: Not available; in Dose: The clinical trial in Chemical formula: C22H23FN2O2 clinical trials schizophrenia patients tested two MW: 366.4 oral doses: 32 mg/day -
Patent Application Publication ( 10 ) Pub . No . : US 2019 / 0192440 A1
US 20190192440A1 (19 ) United States (12 ) Patent Application Publication ( 10) Pub . No. : US 2019 /0192440 A1 LI (43 ) Pub . Date : Jun . 27 , 2019 ( 54 ) ORAL DRUG DOSAGE FORM COMPRISING Publication Classification DRUG IN THE FORM OF NANOPARTICLES (51 ) Int . CI. A61K 9 / 20 (2006 .01 ) ( 71 ) Applicant: Triastek , Inc. , Nanjing ( CN ) A61K 9 /00 ( 2006 . 01) A61K 31/ 192 ( 2006 .01 ) (72 ) Inventor : Xiaoling LI , Dublin , CA (US ) A61K 9 / 24 ( 2006 .01 ) ( 52 ) U . S . CI. ( 21 ) Appl. No. : 16 /289 ,499 CPC . .. .. A61K 9 /2031 (2013 . 01 ) ; A61K 9 /0065 ( 22 ) Filed : Feb . 28 , 2019 (2013 .01 ) ; A61K 9 / 209 ( 2013 .01 ) ; A61K 9 /2027 ( 2013 .01 ) ; A61K 31/ 192 ( 2013. 01 ) ; Related U . S . Application Data A61K 9 /2072 ( 2013 .01 ) (63 ) Continuation of application No. 16 /028 ,305 , filed on Jul. 5 , 2018 , now Pat . No . 10 , 258 ,575 , which is a (57 ) ABSTRACT continuation of application No . 15 / 173 ,596 , filed on The present disclosure provides a stable solid pharmaceuti Jun . 3 , 2016 . cal dosage form for oral administration . The dosage form (60 ) Provisional application No . 62 /313 ,092 , filed on Mar. includes a substrate that forms at least one compartment and 24 , 2016 , provisional application No . 62 / 296 , 087 , a drug content loaded into the compartment. The dosage filed on Feb . 17 , 2016 , provisional application No . form is so designed that the active pharmaceutical ingredient 62 / 170, 645 , filed on Jun . 3 , 2015 . of the drug content is released in a controlled manner. Patent Application Publication Jun . 27 , 2019 Sheet 1 of 20 US 2019 /0192440 A1 FIG . -
Negative Symptoms of Schizophrenia
NEGATIVE SYMPTOMS OF SCHIZOPHRENIA March 22, 2018 Confidential & Proprietary Forward-Looking Statement Safe-Harbor This presentation contains forward-looking statements about Minerva Neurosciences which are subject to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts, reflect management’s expectations as of the date of this presentation, and involve certain risks and uncertainties. Forward-looking statements include, but are not limited to: the benefits, efficacy and safety of our new formulations; the potential of the diagnosis and treatment of negative symptoms of schizophrenia; statements regarding our ability to successfully develop and commercialize our therapeutic products; our ability to expand our long-term business opportunities; our expectations regarding approval for our products by the U.S. Food and Drug Administration or equivalent foreign regulatory agencies; estimates regarding the market potential for our products; and future performance. All of such statements are subject to certain risks and uncertainties, many of which are difficult to predict and generally beyond the control of the Company, that could cause actual results to differ materially from those expressed in, or implied or projected by, the forward-looking statements. These forward-looking statements are based on our current expectations and may differ materially from actual results due to a variety of factors including, without limitation, whether -
Newron Pharmaceuticals FY18 Results
Newron Pharmaceuticals FY18 results Moving towards R&D inflection points Pharma & biotech 14 March 2019 Newron’s FY18 highlights the steady progression of its CNS R&D pipeline. STARS the pivotal Phase II/III (Sarizotan for Rett’s Syndrome) has Price CHF8.29 completed enrolment and data are expected in Q419. Newron is planning Market cap CHF148m to apply for a global filing and approval strategy once data are available. €0.88:CHF; $1.00:CHF; $1.13:€ Evenamide (schizophrenia), developed internally through Newron’s ion Net cash (€m) at 31 December 2018 43.9 channel discovery platform, could enable a paradigm shift in the treatment Shares in issue 17.8m of refractory schizophrenia patients; in Q219 Newron will initiate two pivotal Phase IIb/III trials. We value Newron at CHF714m. Free float 95% Code NWRN Revenue PBT* EPS* DPS P/E Yield Primary exchange SIX Year end (€m) (€m) (€) (€) (x) (%) Secondary exchange N/A 12/17 13.4 (5.3) (0.32) 0.0 N/A N/A 12/18 4.0 (15.0) (0.84) 0.0 N/A N/A Share price performance 12/19e 8.5 (30.2) (1.69) 0.0 N/A N/A 12/20e 21.6 (8.7) (0.49) 0.0 N/A N/A Note: *PBT and EPS are normalised, excluding amortisation of acquired intangibles, exceptional items and share-based payments. Xadago ramp up required Newron reported €4.0m in Xadago royalties in FY18 (vs €2.9m in FY17). We assume 8–15% royalty rate depending on country, this implies gross sales of c €50m for the period generated in countries launched in Europe and initial US sales.