PharmaTher Announces Submission of IND Application with the FDA for Phase 2 Clinical Trial Evaluating Ketamine in the Treatment of Parkinson’s Disease


Ryan Allway

April 20th, 2021

Psychedelics


TORONTO, April 20, 2021 (GLOBE NEWSWIRE) — PharmaTher Holdings Ltd. (“PharmaTher”) (CSE: PHRM) (OTCQB: PHRRF), a specialty psychedelic pharmaceutical company, today announced it submitted an Investigational New Drug (“IND”) application with the U.S. Food and Drug Administration (“FDA”) for the initiation of a Phase 2 clinical trial to evaluate the safety, efficacy and pharmacokinetics of low-dose ketamine in the treatment of levodopa-induced dyskinesia in patients with Parkinson’s disease (“LID-PD”).

 

“The submission of our IND application with the FDA is an important milestone as it provides us with a solid foundation to advance our ambition in commercializing ketamine and unlocking its therapeutic potential through novel uses, formulations and delivery methods in the treatment of neurodegenerative diseases (ie. Parkinson’s disease and Lou Gehrig’s disease), mental illness (ie. Depression and PTSD) and chronic pain,” said Fabio Chianelli, CEO of PharmaTher.

 

Ketamine is an FDA-approved N-methyl-D-aspartate (“NMDA”) receptor-modulating drug that is widely used as an anesthetic agent either alone or in combination with other anesthetic agents [Smith et al, 1987; Pacheco et al, 2014]. The possible therapeutic effect of low-dose ketamine on LID was noted in a retrospective analysis of PD patients who received ketamine for pain relief. During this analysis, it was observed that the patients experienced an improvement in LID lasting several weeks beyond treatment [Sherman et al, 2016]. These results were corroborated in a test of low-dose ketamine in a rodent LID model, and this possible effect has also been examined in a controlled study [Bartlett et al, 2016]. Ketamine may also have additional benefits in the treatment of pain [Niesters et al, 2014] and depression [Diamond et al, 2014; Murrough et al, 2013], which are frequent comorbidities of Parkinson’s disease.

 

The clinical trial is titled “A Multi-Center, Phase IIA, Randomized, Double-Blind, Prospective, Active Placebo-Controlled Trial of Sub-Anesthetic Ketamine to Treat Levodopa-Induced Dyskinesia in Subjects with Parkinson’s Disease.” It is anticipated that up to eight clinical sites in the U.S. will randomize a total of up to 36 subjects to the investigational product (ketamine) or active control (midazolam). The primary end-point of the study is the change in the Unified Dyskinesia Rating Scale (“UDysRS”) total score from Baseline to Week 8. Secondary endpoints of the study include the change in Total Objective Scores of the UDysRS, total daily OFF times as assessed by subject-completed 24-hour diaries and change in the UPDRS total and sum scores of motor and dyskinesia from Baseline to Week 8. Because LID can markedly affect a Parkinson patient’s everyday activities, a reduction in LID could improve the patient’s quality of life.

 

Assuming the Phase 2 clinical trial is positive, the Company will request a meeting with the FDA to discuss its plan and obtain an agreement to move to a pivotal Phase 3 clinical study under the 505(b)(2) regulatory pathway. However, there can be no assurance that the FDA will support any potential request for an expedited path to approval or further development.

 

About Parkinson’s Disease

Parkinson’s disease is a debilitating disorder that affects over 1 million people in the U.S. and more than 7 million people worldwide. There is currently no cure for Parkinson’s disease. Although the etiology of PD is not fully understood, it is thought to result from loss of pigmented dopaminergic neurons in the Substantia nigra and their striatal projections, leading to dopamine deficiency in the striatum [Schapira and Jenner, 2011]. This ultimately affects the cortico-striatal system that controls movement.

 

As a progressive neurogenerative disorder of the central nervous system that primarily affects the motor nerve system, symptoms of Parkinson’s disease may emerge slowly and include tremors, rigidity, bradykinesia, and postural instability [Paulson and Stern, 2004]. Also, patients may experience non-motor symptoms such as autonomic dysfunction (orthostatic hypotension, constipation, bladder dysfunction), psychiatric (depression), cognitive and sensory symptoms (pain) [Olanow, et al, 2009]. These non-motor symptoms become more common as the disease progresses.

 

Treatments, including levodopa and dopamine agonists, which restore the dopamine deficits in the brain, have been employed for almost 50 years. However, with continued treatment using levodopa, dose-limiting motor side-effects often emerge. This includes the emergence of abnormal involuntary movements termed Levodopa Induced Dyskinesias, which can be
identified in about 50% of patients within five years after initiation of levodopa treatment and in almost all patients within ten years post-treatment initiation. These side effects often limit further dose increases in dopaminergic therapy.​

 

About PharmaTher Holdings Ltd.

PharmaTher Holdings Ltd. (CSE: PHRM) (OTCQB: PHRRF) is a specialty psychedelic pharmaceutical company focused on the research, development and commercialization of ketamine and novel microneedle patches for delivering psychedelics to treat neuropsychiatric, neurodegenerative and pain disorders.

 

For more information, please contact:

Fabio Chianelli
Chief Executive Officer
PharmaTher Holdings Ltd.
Tel: 1-888-846-3171
Email: [email protected]
Website: www.pharmather.com

Neither the Canadian Securities Exchange nor its Regulation Services Provider have reviewed or accept responsibility for the adequacy or accuracy of this release.

 

Cautionary Statement

This press release contains ‘forward-looking information’ within the meaning of applicable Canadian securities legislation. These statements relate to future events or future performance. The use of any of the words “could”, “intend”, “expect”, “believe”, “will”, “projected”, “estimated”, “potential”, “aim” and similar expressions and statements relating to matters that are not historical facts are intended to identify forward-looking information and are based on PharmaTher Holdings Ltd. (the “Company”) current belief or assumptions as to the outcome and timing of such future events. Forward-looking information is based on reasonable assumptions that have been made by the Company at the date of the information and is subject to known and unknown risks, uncertainties, and other factors that may cause actual results or events to differ materially from those anticipated in the forward-looking information. Given these risks, uncertainties and assumptions, you should not unduly rely on these forward-looking statements. The forward-looking information contained in this press release is made as of the date hereof, and Company is not obligated to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by applicable securities laws. The foregoing statements expressly qualify any forward-looking information contained herein. Factors that could cause actual results to differ materially from those anticipated in these forward-looking statements are described under the caption “Risk Factors” in Company’s management’s discussion and analysis for the period of November 30, 2020 (“MD&A”), dated January 27, 2021, which is available on the Company’s profile at www.sedar.com.

This news release does not constitute an offer to sell or the solicitation of an offer to buy, and shall not constitute an offer, solicitation or sale in any state, province, territory or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state, province, territory or jurisdiction.

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About Ryan Allway

Mr. Allway has over a decade of experience in the financial markets as both a private investor and financial journalist. He has been actively involved in the cannabis industry since its inception, covering public and private companies.


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