A 6-Week Randomised Double-Blind, Placebo-Controlled Study of BCI-540 80 mg q.d. and 80 mg t.i.d. in the Treatment of Adults With Major Depressive Disorder and Concomitant Anxiety

The purpose of this study is to determine whether BCI-540 80 mg given once daily (q.d.) or three times daily (t.i.d.) is effective in the treatment of major depression with concomitant anxiety.

Start Date01 Jan 2008

Sponsor / Collaborator

BrainCells, Inc.

100 Clinical Results associated with Coluracetam

100 Translational Medicine associated with Coluracetam

100 Patents (Medical) associated with Coluracetam

Literatures (Medical) associated with Coluracetam

01 Jun 2023·Digestive Diseases and Sciences

Activation of the High-Affinity Choline Transporter 1 in the Spinal Cord Relieves Stress-Induced Hyperalgesia

Article

Author: Hu, Guiying ; Yu, Baoping ; Lin, Mengjuan ; Wang, Zhengqiang ; Tan, Wei

BACKGROUNDThe mechanism underlying irritable bowel syndrome (IBS), a common disease with hyperalgesia, remains elusive. The spinal cholinergic system is involved in pain modulation, but its role in IBS is unknown.AIMSTo determine whether high-affinity choline transporter 1 (CHT1, a major determinant of the cholinergic signaling capacity), is implicated in spinal modulation of stress-induced hyperalgesia.METHODSA rat IBS model was established by water avoidance stress (WAS). Visceral sensations were detected by abdominal withdrawal reflex (AWR) and visceromotor response (VMR) to colorectal distension (CRD). Abdominal mechanical sensitivity was determined by von Frey filaments (VFFs) test. RT-PCR, Western blot, and immunostaining were performed for spinal CHT1 expression. Spinal acetylcholine (ACh) was measured by ELISA; the influence of spinal CHT1 on hyperalgesia were evaluated by intrathecal administration of MKC-231 (a choline uptake enhancer) and hemicholinium-3 (HC-3, a specific inhibitor of CHT1). Minocycline treatment was used to explore the role of spinal microglia in hyperalgesia.RESULTSAfter 10 days of WAS, AWR scores and VMR magnitude to CRD, and the number of withdrawal events in VFF test were increased. Double-labeling showed that CHT1 in the dorsal horn was expressed in most of the neurons and almost all the microglia. The CHT1 expression and ACh levels in the spinal cord and the density of CHT1-positive cell in the spinal dorsal horn were enhanced in WAS-exposed rats. HC-3 enhanced pain responses in WAS rats; MKC-231 alleviated pain in WAS rats by upregulating CHT1 expression and increasing ACh production in the spinal cord. Furthermore, microglial activation in the spinal dorsal horn promoted the stress-induced hyperalgesia, and MKC-231 achieved analgesic effects by inhibiting the spinal microglial activation.CONCLUSIONSCHT1 exerts antinociceptive effects in spinal modulation of chronic stress-induced hyperalgesia by increasing ACh synthesis and suppressing microglial activation. MKC-231 has potential for treating disorders accompanied by hyperalgesia.

01 Oct 2018·Journal of Neurogastroenterology and MotilityQ2 · MEDICINE

Role of High-affinity Choline Transporter 1 in Colonic Hypermotility in a Rat Model of Irritable Bowel Syndrome

Q2 · MEDICINE

Article

Author: Yu, Bao-ping ; Lin, Meng-juan

BACKGROUND/AIMSIrritable bowel syndrome (IBS) is a common disease characterized by intestinal dysmotility, the mechanism of which remains elusive. We aim to determine whether the high-affinity choline transporter 1 (CHT1), a determinant of cholinergic signaling capacity, modulates intestinal motility associated with stress-induced IBS.METHODSA rat IBS model was established using chronic water avoidance stress (WAS). Colonic pathological alterations were evaluated histologically and intestinal motility was assessed by intestinal transit time and fecal water content (FWC). Visceral sensitivity was determined by visceromotor response to colorectal distension. RT-PCR, western blotting, and immunostaining were performed to identify colonic CHT1 expression. Contractility of colonic muscle strips was measured using isometric transducers. enzyme-linked immunosorbent assay was used to measure acetylcholine (ACh). We examined the effects of MKC-231, a choline uptake enhancer, on colonic motility.RESULTSAfter 10 days of WAS, intestinal transit time was decreased and fecal water content increased. Visceromotor response magnitude in WAS rats in response to colorectal distension was significantly enhanced. Protein and mRNA CHT1 levels in the colon were markedly elevated after WAS. The density of CHT1-positive intramuscular interstitial cells of Cajal and myenteric plexus neurons in WAS rats was higher than in controls. Ammonium pyrrolidine dithiocarbamate partly reversed CHT1 upregulation and alleviated colonic hypermotility in WAS rats. Pharmacological enhancement of CHT1 activity by MKC-231 enhanced colonic motility in control rats via upregulation of CHT1 and elevation of ACh production.CONCLUSIONUpregulation of CHT1 in intramuscular interstitial cells of Cajal and myenteric plexus neurons is implicated in chronic stress-induced colonic hypermotility by modulation of ACh synthesis via nuclear factor-kappa B signaling.

01 Jan 2015·Psychiatry ResearchQ3 · MEDICINE

Ketamine and other potential glutamate antidepressants

Q3 · MEDICINE

Review

Author: Dutta, Arpan ; Deakin, J F William ; McKie, Shane

The need for rapid acting antidepressants is widely recognised. There has been much interest in glutamate mechanisms in major depressive disorder (MDD) as a promising target for the development of new antidepressants. A single intravenous infusion of ketamine, a N-methyl-d-aspartate (NMDA) receptor antagonist anaesthetic agent, can alleviate depressive symptoms in patients within hours of administration. The mechanism of action appears to be in part through glutamate release onto non-NMDA receptors including α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and metabotropic receptors. However these are also reported effects on 5-HT, dopamine and intracellular effects on the mammalian target of rapamycin (mTOR) pathway. The effects of SSRI (Selective Serotonin Reuptake Inhibitor) antidepressants may also involve alterations in NMDA function. The article reviews the effect of current antidepressants on NMDA and examines the efficacy and mechanism of ketamine. Response to ketamine is also discussed and comparison with other glutamate drugs including lamotrigine, amantadine, riluzole, memantine, traxoprodil, GLYX-13, MK-0657, RO4917523, AZD2066 and Coluracetam. Future studies need to link the rapid antidepressant effects seen with ketamine to inflammatory theories in MDD.

100 Deals associated with Coluracetam

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Indication	Highest Phase	Country/Location	Organization	Date
Alzheimer Disease	Phase 2	US	Mitsubishi Chemical Corp.	-
Alzheimer Disease	Phase 2	JP	-	-
Anxiety Disorders	Phase 2	-	Mitsubishi Tanabe Pharma Corp.	-
Anxiety Disorders	Phase 2	-	Mitsubishi Tanabe Pharma Corp.	-
Depressive Disorder, Major	Phase 2	-	Mitsubishi Tanabe Pharma Corp.	-
Depressive Disorder, Major	Phase 2	-	Mitsubishi Tanabe Pharma Corp.	-

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