meixatech
3 days ago
I may have posted this before. RSPI, if it manages to re patent as previously discussed...
Modeling Suggests Combined-Drug Treatments for Disorders Impairing Synaptic Plasticity via Shared Signaling Pathways
Paul Smolen 1, Marcelo A Wood 2, Douglas A Baxter 1, John H Byrne 1
PMCID: PMC7878405 NIHMSID: NIHMS1646053 PMID: 33175283
Considerable recent data have supported the efficacy of ampakines. Two ampakines, CX-929 and CX-1846, have been shown to rescue deficits in LTP and spatial learning due to ageing (Lauterborn et al. 2016; Radin et al. 2016). CX-929 also rescues deficits in LTP and in fear conditioning in a mouse model of Angelman syndrome (Baudry et al. 2012). CX-691 has been reported to rescue a spatial learning deficit in a rat AD model (Mozafari et al. 2018). Treatment with CX-516 rescues deficits in LTP and in fear conditioning in another mouse model, of intellectual disability due to TM4SF2 deletion (Murru et al. 2017). The availability of tested TrkB agonists and ampakines, which cross the blood-brain barrier in rodents, strongly suggests testing of the efficacy of this drug combination in animal models of genetic disorders such as CLS that correlate with impaired histone acetylation, as we discuss previously, as well as in animal models of the other disorders above, such as Fragile X and AD. Recently 7,8-DHF and CX-929 have separately been reported to rescue deficient spatial learning in a mouse Fragile X model, with 7,8-DHF also rescuing deficient LTP (Seese et al. 2019).
NeutrinoKid
4 days ago
Cardiff University spin-out Draig Therapeutics emerged from the shadows this morning with Β£107 million ($140 million) in funding to develop new therapies for neuropsychiatric disorders.
What is not mentioned is that though Respirerxβs competitor molecule CX-1632 was indeed put on hold, they have now several better new alternatives. Several.
Other drugs in the class have run into toxicity issues, including convulsions or neurotoxicity, which have scuppered development programmes such as Eli Lilly's mibampator and Servier/RespireRx' tulrampator.
One candidate that has stayed the course so far is Neurocrine Biosciences' osavampator, which is in phase 3 testing as an add-on therapy for patients with MDD who do not respond to standard antidepressants.
Along with MDD, AMPA-targeting drugs have also been proposed as potential treatments for other diseases, including Alzheimer's and cognitive impairment due to schizophrenia.
https://pharmaphorum.com/news/welsh-biotech-draig-emerges-140m-financing
jor8888
5 days ago
lol look at this one: Shares of Regencell Bioscience, a Hong Kong-based developer of traditional Chinese herbal treatments that it says can treat childhood ADHD and autism, more than tripled Monday. The stock soared more than 280% after a 38-for-1 stock split.
The company, which has no revenue, has jumped more than 59,000% in 2025 after gains continued Tuesday.
meixatech
6 days ago
The "ampakine Family 5" patent likely refers to a group of patents or patent applications held by Cortex Pharmaceuticals, Inc. (now RespireRx Pharmaceuticals Inc. or RSPI) related to certain AMPAKINE compounds.
Biovail Laboratories International SRL had acquired rights to certain AMPAKINE compounds, including associated intellectual property, from Cortex Pharmaceuticals in March 2010. However, Cortex reacquired these compounds and rights from Biovail in March 2011.
The license agreement between Cortex and Biovail mentions restrictions on Biovail regarding the use of "Family 5 Patent Rights" and "Family 6 Patent Rights," implying that these patent families were owned by Cortex/RespireRx.
Specific expiration dates for patents within the "ampakine Family 5" are not explicitly stated in the search results. However, information about related AMPAKINE patents held by Cortex/RespireRx indicates the following:
A patent application specifically covering CX1739, a low-impact AMPAKINE, was projected to expire in 2028 if approved.
Other patents related to low-impact AMPAKINE compounds CX2007 and CX2076, issued in February 2012, were set to expire in August 2028.
RespireRx mentions a "Composition-of-Matter Patent" for CX1739 expiring in 2028, and a "Method-of-use patent" expiring in 2030.
The "last to expire patent" licensed from the University, relating to the reacquired compounds, expires in January 2025.
Based on this information, the most relevant patent expiration date among the search results that is likely associated with the "ampakine Family 5" and held by Cortex/RespireRx is 2030, which is the expiration date for a "Method-of-use patent" related to CX1739.
It is important to note that the specific expiration date for the "ampakine Family 5 patent" is not directly available, but the information provided gives an indication of the timeframe for patent expirations related to Cortex/RespireRx's AMPAKINE compounds.
meixatech
6 days ago
And "In the context of patent rights, "Family 5" likely refers to a grouping of patents and patent applications related to a single invention, which are referred to as a patent family. The "5" in "Family 5" would simply be a number assigned to this particular patent family, indicating its place within a larger system of patent families managed by a patent database or office.
Here's a breakdown of what a patent family means in relation to patent rights:
1. Single Invention, Multiple Territories:
A patent family represents a single invention that is protected in different countries or regions through a collection of patents and patent applications.
2. Common Priority Date:
All members of a patent family share a common "priority date," which is the date the initial patent application for the invention was filed.
3. Applications and Granted Patents:
Each family consists of applications and granted patents from the various countries where protection is sought.
4. Patent Family Size:
This refers to the number of applications or patents within a specific patent family.
5. Examples of Patent Families:
An example could be a US patent application and any subsequent patent applications filed in other countries (e.g., in Europe, Japan) to protect the same invention.
6. Importance of Patent Families:
Patent families help to organize and track related patent documents for a single invention.
They are particularly useful in patent analysis, preventing the "double counting" of inventions when evaluating patent activity across different countries.
In summary, "Family 5 Patent Rights" simply means that the patent rights in question belong to a specific patent family, which is a collection of patents and applications related to one invention, and this particular family is designated as "Family 5" within a specific database or system. "
meixatech
6 days ago
OMG!!! AI is unbelievable! Just need to ask:
"Based on the information provided, BLS stands for Biovail Laboratories International SRL, a subsidiary of Biovail Corporation.
BLS entered into a License Agreement with Cortex Pharmaceuticals, Inc. (which later became RespireRx Pharmaceuticals Inc.). This agreement granted BLS an exclusive, worldwide, perpetual license related to Family 5 Patent Rights, which include reference to CX929.
This license was related to the acquisition of certain Ampakine compounds for the treatment of respiratory depression. "
meixatech
7 days ago
Does RespireRX have rights to CX929? AI answers:
Yes, RespireRx Pharmaceuticals Inc. holds intellectual property rights related to CX929, though the specific nature of those rights and their current status isn't explicitly detailed in the provided search results.
Here's a breakdown of what the information suggests:
RespireRx owns patents and patent applications or rights to certain chemical compounds claiming their structure and use in treating various disorders.
A "License Agreement" involving "Cortex" (presumably a predecessor or related entity to RespireRx) and BLS grants an exclusive, worldwide, perpetual license related to Family 5 Patent Rights, which include reference to CX929. This indicates RespireRx (or its predecessor) was involved in its development and held rights to it.
The specific context of CX929's use and development is mentioned in the License Agreement as being for specific conditions like "spinal cord injuries".
An article from ADVFN references CX929 in the context of RespireRx and potential oral administration, suggesting it is or was part of their research efforts.
However, the provided documents don't offer specifics on the current developmental status of CX929 or definitively state that RespireRx continues to actively pursue its development.
It's important to note:
RespireRx focuses on two main drug platforms: pharmaceutical cannabinoids (including dronabinol) and neuromodulators (AMPAkines and GABAkines).
While CX929 appears to be related to the neuromodulator platform (likely an AMPAkine), recent press releases and company overviews primarily highlight CX1739 as the lead AMPAkine.
Therefore, while RespireRx holds rights related to CX929, further investigation may be needed to determine its current significance within the company's development pipeline.
meixatech
1 week ago
Damn! AI sure is getting "thoughtful:"
There's no indication that RespireRx is "ignoring" CX929 ampakine. However, based on the information available, their focus has shifted to other ampakines, specifically CX717 and CX1739, for development in respiratory disorders and spinal cord injury.
Here's why this might be the case:
Focus on Lead Compounds: RespireRx emphasizes CX717 and CX1739 as their "lead clinical compounds," which have successfully completed Phase 1 safety trials and shown promise in Phase 2 proof-of-concept studies for treating opioid-induced respiratory depression and improving bladder function after spinal cord injury.
"Low Impact" Ampakines: RespireRx focuses on developing "Low Impact" ampakines, including CX717, CX1739, and CX1942, that avoid the seizure potential associated with "High Impact" ampakines. This suggests a strategic prioritization of specific ampakine profiles.
Specific Clinical Applications: Their focus is primarily on CNS-driven respiratory disorders, including opioid-induced respiratory depression, central sleep apnea, and disordered breathing from spinal cord injury.
CX929 Development Status: While CX929 has been studied in preclinical research and demonstrated positive effects in animal models for conditions like Huntington's disease, its development has been discontinued for certain indications, according to some reports. This discontinuation could be due to a variety of factors, such as resource allocation, strategic shifts, or regulatory decisions.
Financial Challenges: RespireRx has also faced financial challenges, which could impact its ability to pursue multiple drug development programs simultaneously.
In essence, RespireRx isn't ignoring CX929, but it appears to be concentrating its resources on the ampakines that have shown the most promise in clinical trials and align with its core focus on respiratory disorders and spinal cord injury.
meixatech
1 week ago
LT CX929 is a high impact ampakine with an extraordinary clinical potential. AI explains it nicely:
Yes, CX929 is classified as a "high impact" ampakine.
Ampakines are a class of drugs that enhance the effects of the neurotransmitter glutamate at AMPA receptors in the brain.
They are being investigated as potential treatments for conditions involving cognitive impairments, such as Alzheimer's disease, schizophrenia, and Huntington's disease.
Ampakines are broadly categorized as either "high impact" or "low impact," depending on their effect on AMPA receptor activation.
CX929 falls into the high-impact category.
High-impact ampakines, like CX929, are thought to stabilize the open state of the AMPA receptor, influencing factors like agonist binding affinity and desensitization. This differentiates them from low-impact ampakines, which primarily accelerate channel opening with minimal impact on desensitization.
Preclinical studies on CX929 have shown promise in models of Huntington's disease, demonstrating improved cognitive function, reduced neuropathological changes, and enhanced motor performance.
I just do not believe Margolis claim of ignorance of CX929 when asked a while ago. But why the secrecy?