{"id":982144,"date":"2026-07-16T07:04:24","date_gmt":"2026-07-16T11:04:24","guid":{"rendered":"https:\/\/www.marketnewsdesk.com\/index.php\/gain-therapeutics-ceo-gene-mack-issues-letter-to-shareholders-and-provides-operational-update-2\/"},"modified":"2026-07-16T07:04:24","modified_gmt":"2026-07-16T11:04:24","slug":"gain-therapeutics-ceo-gene-mack-issues-letter-to-shareholders-and-provides-operational-update-2","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/gain-therapeutics-ceo-gene-mack-issues-letter-to-shareholders-and-provides-operational-update-2\/","title":{"rendered":"Gain Therapeutics CEO Gene Mack Issues Letter to Shareholders and Provides Operational Update"},"content":{"rendered":"
\n

BETHESDA, Md., July 16, 2026 (GLOBE NEWSWIRE) — Gain Therapeutics, Inc. (Nasdaq: GANX) (\u201cGain\u201d, or the \u201cCompany\u201d), a clinical-stage biotechnology company leading the discovery and development of the next generation of allosteric small molecule therapies, today provided the following letter to shareholders from the Company\u2019s President and CEO, Gene Mack:<\/p>\n

To our valued Shareholders,<\/p>\n

As we progress through 2026 and look ahead to delivering continued significant progress, I want to thank you for your steadfast support of Gain Therapeutics. The year has been one of meaningful scientific progress as we achieved critical inflection points related to the clinical development of rexaceract, <\/em>formerly known as GT-02287, the Company\u2019s lead drug candidate \u2013 a disease modifying therapy for Parkinson\u2019s disease (PD). We continue to work towards our goal of offering a potentially first-in-category therapy for people with Parkinson\u2019s disease with or without a GBA1 genetic mutation, a therapy that could be a paradigm-shifting treatment for this therapeutic class. I believe we are well-positioned to reach this transformative milestone, not only for our Company but for patients and their families worldwide.<\/p>\n

\n Commitment to Advancing <\/strong>
\n
\n Rexaceract<\/em>
\n <\/strong>
\n for Parkinson\u2019s Disease<\/strong>\n <\/p>\n

Parkinson\u2019s disease remains the second most prevalent neurodegenerative disorder after Alzheimer\u2019s disease, yet available treatments are limited to managing symptoms rather than altering disease progression. Our immediate focus remains the clinical development of rexaceract<\/em> to address this unmet need, as we endeavor to create a new backbone of therapy for Parkinson\u2019s disease that slows or stops the progression of symptoms.<\/p>\n

The results \u2013 both from our Phase 1b study of rexaceract<\/em> and open-label extension – continue to support our hypothesis for the drug candidate and its mechanism of action and we continue to observe safety and tolerability through five months of treatment. We also continue to see strong engagement in the open-label extension. All 16 participants who entered the ongoing Phase 1b extension study remained on study at Day 150, and following the most recent review on July 6, 2026, an independent Data Monitoring Committee recommended the study continue without modification.<\/p>\n

While longer term outcomes in this dosing extension are anticipated to read out in October 2026, we have already released encouraging data from Part 1 and Part 2 of the study which includes the first 90 days (3 months) administration of rexaceract,<\/em> during which reduction in cerebrospinal fluid (CSF) levels of glucosylsphingosine (GluSph) in patients with elevated levels at baseline correlated with an early clinical benefit. That response is largely maintained after at least five months of administration, while the entire cohort of 16 patients can be categorized as non-progressors at both three and five months regardless of baseline characteristics. We look forward to the next updates at 270 days and 360 days, which will occur over the summer and at the conclusion of the study in October 2026.<\/p>\n

\n IND Authorization, INN Acceptance, and Next Steps for <\/strong>
\n
\n Rexaceract<\/em>
\n <\/strong>\n <\/p>\n

With Investigational New Drug (IND) authorization in hand, our clinical team is now working diligently to commence our Phase 2 study in people with Parkinson\u2019s disease, which we anticipate starting in the third quarter of 2026. The FDA\u2019s decision to authorize the IND application follows positive Phase 1 results in both healthy volunteers and people with Parkinson\u2019s disease, in which rexaceract <\/em>was well-tolerated and demonstrated both biomarker and clinical evidence of activity. Following the recent acceptance of \u201crexaceract<\/em>\u201d as the International Nonproprietary Name (INN) for GT-02287, all references made to GT-02287 within the program will transition to this established nonproprietary name.<\/p>\n

The planned Phase 2 study of rexaceract <\/em>is expected to enroll participants with early Parkinson\u2019s disease across sites in the United States, Australia, and Europe.<\/p>\n

Our Clinical Advisory Board, which consists of leaders in the field of movement disorders and neurodegenerative diseases, has been very active in bolstering our development efforts. In addition to our Clinical Advisory Board, we have engaged a number of experienced consultants to further support the design of our Phase 2 clinical trial. Their expertise in clinical trial methodology, regulatory affairs, biostatistics, and study operations has already informed key protocol decisions, including patient selection, endpoint development, and statistical planning. This collaborative approach is intended to strengthen the overall study design and position the program for successful execution.<\/p>\n

\n New Biomarkers as a Validation for <\/strong>
\n
\n Rexaceract<\/em>
\n <\/strong>
\n MoA in Parkinson\u2019s Disease<\/strong>\n <\/p>\n

The glucocerebrosidase (GCase) substrate GluSph is considered a significant biomarker for Gaucher\u2019s disease, and an emerging biomarker for Parkinson\u2019s disease.<\/p>\n

Recently, we observed that after 90 days of treatment with rexaceract <\/em>in participants with elevated baseline levels of GluSph in CSF at baseline, GluSph decreased a marked amount – by an average of 81%. Elevated GluSph, a hallmark of GCase dysfunction, has been shown to increase the aggregation of \u03b1-synuclein as well as to impair mitochondrial function and other intracellular processes in neurons. We believe this first-ever observation following the administration of a GCase modulator to Parkinson\u2019s disease patients is indicative of central nervous system (CNS) target engagement and increased GCase activity in the brain.<\/p>\n

Furthermore, in individuals with high levels of CSF GluSph at baseline, levels of DOPA decarboxylase (DDC) decreased following 90 days of treatment with rexaceract<\/em>. DDC is responsible for converting levodopa into dopamine in the brain and is elevated in the CSF of people with Parkinson\u2019s disease \u2013 likely due to dopaminergic neuron dysfunction.<\/p>\n

After 150 days of treatment, participants with elevated baseline GluSph demonstrated greater clinical benefit than those with low baseline levels, with a difference of 4.8 points in the sum of MDS-UPDRS Part II and III scores.<\/p>\n

Coupled with the stabilization or improvement of MDS-UPDRS scores that we have observed across the overall study population and reports of anecdotal improvements in functional areas such as gait and smell, we strongly believe we are engaging the underlying biology of the disease and seeing early signs of efficacy.<\/p>\n

\n GT-04686 and Pipeline Update<\/strong>\n <\/p>\n

We have also been making strides advancing a second product candidate in the pipeline, GT-04686, and recently presented preclinical evidence of its activity in both\u00a0in vitro\u00a0<\/em>and\u00a0in vivo\u00a0<\/em>models. Results showed an increase in GCase activity and lipid substrate depletion in patient fibroblasts harboring both mutated and wildtype GBA1, as well as restoration of motor and non-motor function in an animal model of Parkinson\u2019s disease. GT-04686 is a structurally distinct allosteric GCase chaperone and will be the next program in our pipeline advancing towards clinical development. While GT-04686 demonstrates robust activity in Parkinson\u2019s models of disease, we will be evaluating the candidate in other neurodegenerative disease models and, by year-end, expect to select the initial therapeutic indication for this candidate\u2019s development.<\/p>\n

Current activities are focused on optimizing the program and generating the data necessary to support\u00a0IND-enabling studies, including refinement of the target product profile, preclinical pharmacology, manufacturing readiness, and development planning. These efforts are intended to position GT-04686 for a successful transition into formal IND-enabling development and, ultimately, clinical evaluation.<\/p>\n

As we continue to advance our lead clinical candidate, rexaceract<\/em>, we believe GT-04686 represents an important opportunity to expand our pipeline of GCase-targeting allosteric modulators and create additional long-term value for shareholders.<\/p>\n

\n Organizational update<\/strong>\n <\/p>\n

In recognition of their leadership and contributions to the Company\u2019s progress in advancing the clinical development of rexaceract<\/em> as well as expanding the company’s pipeline, our Board of Directors has unanimously approved the promotion of Joanne Taylor and Terenzio Ignoni to Chief Scientific Officer and Chief Operating Officer, respectively.<\/p>\n

Dr. Joanne Taylor has over 30 years\u2019 experience in the pharmaceutical industry. She joined Gain Therapeutics in September 2020 and has been Gain\u2019s Senior Vice President, Research since 2022. Previously, she served as Vice President, Head of Neuroscience for Prescient Healthcare Group where she led its neuroscience business (comprising neurology, psychiatry, ophthalmology, rare diseases and pain), and supported the portfolio, clinical and regulatory strategies of a wide array of global top 25 pharmaceutical company clients. She also served as Director of External Research, Neuroscience, and previously as a senior group leader and scientist at Eisai\u2019s London Research Laboratories and European Headquarters where she directed global teams in the discovery of novel therapeutic strategies for neurological conditions, with a particular focus on Alzheimer\u2019s, multiple sclerosis, and Parkinson\u2019s diseases. There she later led neuroscience portfolio reviews to identify areas of major focus and investment, as well as partnering activities with academia and biotech. Dr. Taylor received a Ph.D. in Developmental Neuroscience from King\u2019s College and completed a postdoctoral fellowship and senior research post at the ETH in Zurich.<\/p>\n

Terenzio Ignoni joined Gain Therapeutics in June 2021 as Senior Vice President, Quality and CMC, with over 25 years in pharmaceutical development and quality leadership, and has served as Senior Vice President, Technical Operations and Development since April 2022, leading the transition of Gain Therapeutics from research to a clinical-stage company. Before Gain Therapeutics, Terenzio held the position of Vice President, Quality at Jazz Pharmaceuticals, where he led the approval process of DEFITELIO\u00ae (defibrotide sodium) in the US, Latin America, Japan, among other jurisdictions. Before Jazz, he held leadership positions at Gentium S.p.A. (integrated into Jazz Pharmaceuticals) and Zambon Group, Italy. Terenzio holds a five-year Master’s-level degree in Chemistry and Pharmaceutical Technology from the University of Turin, with a Pharm.D. qualification, and is a certified EU Qualified Person (QP).<\/p>\n

Finally, we would like to thank Dr. Jonas Hannestad for his dedicated contribution to the early clinical development of rexaceract<\/em> and playing an integral role in the IND filing process for rexaceract<\/em>. We are grateful for Jonas\u2019 leadership and commitment over the past two years and wish him all the best as he moves on to pursue other interests as of July 2026.<\/p>\n

Over the next several weeks we will be engaging with key opinion leaders in Parkinson\u2019s disease, potential partners, and our broader scientific and clinical advisory boards as we finalize the design of our Phase 2 clinical program that is expected to begin during the third quarter of 2026.<\/p>\n

\n Capital Position<\/strong>\n <\/p>\n

As of March 31, 2026, we had approximately $16.5M in cash and cash equivalents, which we expect will fund operations into 2Q27, based on current operating plans, including the completion of the Phase 1b open-label extension in October and initiation of a Phase 2 during 3Q26. We continue to partially offset our operating burn with capital available through our ATM facility while further engaging in ongoing discussions with potential licensing partners as well as evaluating other sources of financing that can help us ensure clinical development of rexaceract <\/em>remains a priority regardless of any partnering structure.<\/p>\n

\n Looking Ahead<\/strong>\n <\/p>\n

We are very encouraged by the observations trending from the 150-day dosing period of our Phase 1b clinical trial and believe that the neuroprotective effect demonstrated in pre-clinical models of Parkinson\u2019s disease will translate to human participants with Parkinson\u2019s disease. We recently had the opportunity to present to investors and stakeholders at AD\/PD 2026 and the 3rd<\/sup> International GBA1 Meeting 2026 and the latest data were well received. We also recently met with our partners at the Michael J. Fox Foundation who are working closely with us to best contextualize, validate, and optimize our latest data and we are grateful for their continued support.<\/p>\n

With IND authorization paving the way for initiation of Phase 2 clinical development in the U.S., we are prepared to execute and unlock significant value for the rexaceract<\/em> development program. We are deeply appreciative of the continued support from the Parkinson\u2019s disease community, including scientific leaders, and, most importantly, the patients who place their trust in us as we work to address the underlying mechanisms of this disease.<\/p>\n

At Gain, we are firmly committed to making inroads for people living with Parkinson\u2019s disease. I am continually inspired by the dedication of our team, grateful for our stakeholders, and thankful for the opportunity to pursue this mission together. We appreciate your ongoing support and look forward to keeping you informed as we continue to make progress with a potentially first-in-class therapy for Parkinson\u2019s disease.<\/p>\n

Sincerely, Gene Mack<\/p>\n

President & Chief Executive Officer<\/p>\n

\n About <\/strong>
\n
\n Rexaceract<\/em>
\n <\/strong>
\n
Gain Therapeutics\u2019 lead drug candidate rexaceract<\/em>, formerly GT-02287, is in clinical development for the treatment of Parkinson\u2019s disease (PD) with or without a GBA1 mutation. The orally administered, brain-penetrant small molecule is a beta-glucocerebrosidase (GCase) positive allosteric modulator, antiparkinsonian, small molecule that restores the function of the lysosomal enzyme GCase which becomes misfolded and impaired due to mutations in the GBA1 gene, the most common genetic abnormality associated with PD, or other age-related stress factors. In preclinical models of PD, rexaceract<\/em> restored GCase enzymatic function, reduced endoplasmic reticulum stress, lysosomal and mitochondrial pathology, aggregated \u03b1-synuclein, neuroinflammation and neuronal death, as well as plasma neurofilament light chain (NfL) levels, a biomarker of neurodegeneration. In rodent models of both GBA1-PD and idiopathic PD, rexaceract <\/em>was shown to rescue deficits in motor function and gait and prevent the development of deficits in complex behaviors such as nesting.<\/p>\n

Compelling preclinical data in models of both GBA1-PD and idiopathic PD, demonstrating a disease-modifying effect after administration of rexaceract<\/em>, suggest that rexaceract<\/em> may have the potential to slow or stop the progression of Parkinson\u2019s disease.<\/p>\n

Results from a Phase 1 study of rexaceract<\/em> in healthy volunteers demonstrated favorable safety and tolerability, plasma and CNS exposures in the projected therapeutic range, and target engagement with an increase in GCase activity among those receiving rexaceract<\/em> at clinically relevant doses.<\/p>\n

\n Rexaceract<\/em> is currently being evaluated in a Phase 1b clinical trial for the treatment of Parkinson\u2019s disease with or without a GBA1 mutation. The primary endpoint of the trial, which enrolled participants across seven sites in Australia, is to evaluate the safety and tolerability of rexaceract<\/em> after three months of dosing in people with Parkinson\u2019s disease. The Phase 1b study extension allows participants to continue to be treated with rexaceract<\/em> for up to a total of 12 months.<\/p>\n

Gain\u2019s lead program in Parkinson\u2019s disease has been awarded funding support early in its development from The Michael J. Fox Foundation for Parkinson\u2019s Research (MJFF) and The Silverstein Foundation for Parkinson\u2019s with GBA, as well as from the Eurostars-2 joint program with co-funding from the European Union Horizon 2020 research and Innosuisse \u2013 Swiss Innovation Agency.<\/p>\n

\n About Gain Therapeutics, Inc.<\/strong>
\n
Gain Therapeutics, Inc. is a clinical-stage biotechnology company leading the discovery and development of next generation allosteric therapies. Gain\u2019s lead drug candidate, rexaceract<\/em> is currently being evaluated for the treatment of Parkinson\u2019s disease with or without a GBA1 mutation in a Phase 1b clinical trial. Rexaceract<\/em> has further potential in Gaucher\u2019s disease, dementia with Lewy bodies, and Alzheimer\u2019s disease. Gain has multiple undisclosed preclinical assets targeting lysosomal storage disorders, metabolic diseases, and solid tumors.<\/p>\n

Gain\u2019s unique approach enables the discovery of novel, allosteric small molecule modulators that can restore or disrupt protein function. Deploying its highly advanced Magellan\u2122 platform, Gain is accelerating drug discovery and unlocking novel disease-modifying treatments for untreatable or difficult-to-treat disorders including neurodegenerative diseases, rare genetic disorders and oncology.<\/p>\n

\n Forward-Looking Statements<\/strong>
\n
This release contains \u201cforward-looking statements\u201d made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These statements are typically preceded by words such as \u201cbelieves,\u201d \u201cexpects,\u201d \u201canticipates,\u201d \u201cintends,\u201d \u201cwill,\u201d \u201cmay,\u201d \u201cshould,\u201d or similar expressions. These forward-looking statements reflect management\u2019s current knowledge, assumptions, judgment and expectations regarding future performance or events. Although management believes that the expectations reflected in such statements are reasonable, they give no assurance that such expectations will prove to be correct or that those goals will be achieved, and you should be aware that actual results could differ materially from those contained in the forward-looking statements. Forward-looking statements are subject to a number of risks and uncertainties, including, but not limited to, statements regarding: the development of the Company\u2019s current or future product candidates; expectations regarding the timing of patient enrollment and the completion and timing of results from a Phase 1b clinical study for rexaceract<\/em>, including any extension studies; the timing of any submissions to the FDA or other regulatory bodies and agencies; the timing of the commencement of the Phase 2 clinical study for rexaceract<\/em>; the ability for the Company to enroll patients in its planned Phase 2 clinical study for rexaceract<\/em>; the Company\u2019s ability to replicate positive results from earlier preclinical studies or clinical trials in current or future clinical trials; the Company\u2019s expected cash runway, capital resources, liquidity and financing plans; the Company\u2019s business development activities, strategic collaborations, licensing opportunities and financing activities; the advancement, prioritization and timing of the Company\u2019s pipeline programs, including GT-04686; and the potential therapeutic and clinical benefits of the Company\u2019s product candidates. For a further description of the risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the Company\u2019s business in general, please refer to the Company\u2019s Form 10-K for the year ended December 31, 2025 and other filings made with the SEC. All forward-looking statements are expressly qualified in their entirety by this cautionary notice. You are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date of this release. We have no obligation, and expressly disclaim any obligation, to update, revise or correct any of the forward-looking statements, whether because of new information, future events or otherwise.<\/p>\n

\n Investors:<\/strong>
\n
Gain Therapeutics, Inc.\u00a0
Apaar Jammu\u00a0
Manager, Investor Relations and Public Relations
ajammu@gaintherapeutics.com<\/a><\/p>\n

LifeSci Advisors LLC
Chuck Padala
Managing Director
chuck@lifesciadvisors.com<\/a><\/p>\n

\n Media:<\/strong>
\n
Russo Partners LLC
Nic Johnson and Elio Ambrosio
nic.johnson@russopartnersllc.com<\/a>
elio.ambrosio@russopartnersllc.com<\/a>
(760) 846-9256<\/p>\n

\"\"
\n
\n \"\"\n <\/div>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

BETHESDA, Md., July 16, 2026 (GLOBE NEWSWIRE) — Gain Therapeutics, Inc. (Nasdaq: GANX) (\u201cGain\u201d, or the \u201cCompany\u201d), a clinical-stage biotechnology company leading the discovery and development of the next generation of allosteric small molecule therapies, today provided the following letter to shareholders from the Company\u2019s President and CEO, Gene Mack: To our valued Shareholders, As we progress through 2026 and look ahead to delivering continued significant progress, I want to thank you for your steadfast support of Gain Therapeutics. The year has been one of meaningful scientific progress as we achieved critical inflection points related to the clinical development of rexaceract, formerly known as GT-02287, the Company\u2019s lead drug candidate \u2013 a disease modifying therapy for Parkinson\u2019s disease (PD). We … <\/p>\n

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(Nasdaq: GANX) (\u201cGain\u201d, or the \u201cCompany\u201d), a clinical-stage biotechnology company leading the discovery and development of the next generation of allosteric small molecule therapies, today provided the following letter to shareholders from the Company\u2019s President and CEO, Gene Mack: To our valued Shareholders, As we progress through 2026 and look ahead to delivering continued significant progress, I want to thank you for your steadfast support of Gain Therapeutics. The year has been one of meaningful scientific progress as we achieved critical inflection points related to the clinical development of rexaceract, formerly known as GT-02287, the Company\u2019s lead drug candidate \u2013 a disease modifying therapy for Parkinson\u2019s disease (PD). 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(Nasdaq: GANX) (\u201cGain\u201d, or the \u201cCompany\u201d), a clinical-stage biotechnology company leading the discovery and development of the next generation of allosteric small molecule therapies, today provided the following letter to shareholders from the Company\u2019s President and CEO, Gene Mack: To our valued Shareholders, As we progress through 2026 and look ahead to delivering continued significant progress, I want to thank you for your steadfast support of Gain Therapeutics. The year has been one of meaningful scientific progress as we achieved critical inflection points related to the clinical development of rexaceract, formerly known as GT-02287, the Company\u2019s lead drug candidate \u2013 a disease modifying therapy for Parkinson\u2019s disease (PD). 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