Dyne Therapeutics, Inc.

- Presentations Will Feature Recent Clinical Data From DYNE-251 and DYNE-101 as Well as Preclinical Data in FSHD and Pompe Disease - WALTHAM, Mass., Oct. 09, 2024 (GLOBE NEWSWIRE) -- Dyne Therapeutics, Inc. (Nasdaq: DYN), a clinical-stage muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases, today announced that previously reported clinical and preclinical data across its pipeline will be featured in poster presentations at the 29th Annual Congress of the World Muscle Society, held virtually and in Prague, Czech Republic, October 8-12, 2024. The presentations highlight the promise of the FORCE™ platform to deliver targeted therapeutics to address neuromuscular diseases. “The full breadth and versatility of our FORCE platform is on display at this year’s World Muscle Society Congress, with presentations covering both of our co-lead clinical programs in DM1 and DMD, along with preclinical work in FSHD and Pompe disease,” said John Cox, president and chief executive officer of Dyne. “We’ve observed targeted delivery with the FORCE platform showing broad distribution to key tissues like skeletal, cardiac, smooth muscle and the CNS – which has the potential to transform the lives of individuals living with these diseases.” Poster Highlights The Phase 1/2 DELIVER trial evaluating DYNE-251 in males with Duchenne muscular dystrophy (DMD) mutations amenable to exon 51 skipping includes 6-month biomarker and functional data from patients enrolled in the 20 mg/kg (approximate PMO dose) cohort and 12-month functional data from the 10 mg/kg cohort. DYNE-251 demonstrated dose dependent exon skipping and dystrophin expression and improvement in multiple functional endpoints in both cohorts. Patients treated with 20 mg/kg of DYNE-251 Q4W had a mean absolute dystrophin expression of 3.7% of normal (unadjusted for muscle content) and when adjusting for muscle content, it reached 8.7%. Importantly, treatment with DYNE-251 resulted in meaningful improvements in Stride Velocity 95th Centile (SV95C), a digital objective outcome measure of ambulatory performance in a patient’s normal daily environment. The change from baseline in SV95C met the published minimal clinically important difference as defined by the European Medicines Agency (0.1 m/sec) at 6 months for both the 10 and 20 mg/kg cohorts (approximately 0.2 m/sec change from baseline for both cohorts).The Phase 1/2 ACHIEVE trial evaluating DYNE-101 in adult participants with myotonic dystrophy type 1 (DM1) includes 12-month data from the 1.8 mg/kg Q4W (approximate ASO dose) cohort, 6-month data from the 3.4 mg/kg Q4W cohort, and 3-month data from the 5.4 mg/kg Q8W cohort. DYNE-101 demonstrated robust muscle delivery and dose-dependent, consistent splicing correction while also showing improvement in myotonia, muscle strength, and timed function tests and in the Myotonic Dystrophy Type 1 Activity and Participation Scale (DM1-ACTIVc) and the Myotonic Dystrophy Health Index (MDHI) patient reported outcomes. Patients in the 5.4 mg/kg Q8W cohort had a 27% mean splicing correction from baseline across a broad, 22-gene panel at 3 months, with all participants demonstrating splicing correction.Both DYNE-251 and DYNE-101 have demonstrated favorable safety profiles. 1 2Preclinical data for DYNE-302 in facioscapulohumeral muscular dystrophy (FSHD), demonstrated robust and durable DUX4 suppression and functional benefit in an innovative hTfR1/iFLExD mouse model developed by Dyne. In hTfR1/iFLExD mice, a single intravenous dose of DYNE-302 resulted in dose-dependent and robust reduction of the DUX4 transcriptome (D4T) that lasted up to three months, with benefit on muscle structure and function.Preclinical data in a Pompe disease model demonstrated the potential of the FORCE platform to deliver enzyme replacement therapy to cardiac and skeletal muscle and the central nervous system (CNS), potentially expanding the modularity of the platform beyond oligonucleotides. Presentation Information Title: Initial Data from the DELIVER Trial of DYNE-251 in Males with DMD Mutations Amenable to Exon 51 SkippingDate/Time: October 9, 2024, 2:30 p.m. CEST/8:30 a.m. ETPresenter: Liesbeth De Waele, M.D., Ph.D., Pediatric Neurologist at University Hospital Leuven, Belgium Title: Initial Data from the ACHIEVE Trial of DYNE-101 in Adults with Myotonic Dystrophy Type 1 (DM1)Date/Time: October 9, 2024, 2:30 p.m. CEST/8:30 a.m. ETPresenter: Joost Kools, M.D., Neuromuscular Department at Radboud University Medical Center, Netherlands Title: The FORCE™ Platform Achieves Robust and Durable DUX4 Suppression and Improves Muscle Function in Facioscapulohumeral Muscular Dystrophy Mouse ModelDate/Time: October 9, 2024, 5:15 p.m. CEST/11:15 a.m. ETPresenter: Tyler Picariello, Ph.D., Director, Neuromuscular Research, Dyne Therapeutics Title: The FORCE™ Platform Enables Tfr1-mediated Delivery of Enzyme Replacement Therapy to Muscle and Central Nervous System, Resolving Pompe Pathology in MiceDate/Time: October 11, 2024, 3:45 p.m. CEST/ 9:45 a.m. ETPresenter: Tyler Picariello, Ph.D., Director, Neuromuscular Research, Dyne Therapeutics The presentations will be available in the Scientific Publications & Presentations section of Dyne’s website following the session. Additionally, a symposium titled “Potential of the FORCE™ Platform to Address Unmet Needs in Rare Neuromuscular Diseases” will be held on October 10 at 8:15 a.m. CEST/ 2:15 a.m. ET. About the FORCE™ Platform The proprietary FORCE™ platform drives Dyne’s efforts to develop targeted, modern oligonucleotide innovative therapeutics with the potential to be life-transforming for patients with serious muscle diseases. Dyne designed the FORCE platform using its deep knowledge of muscle biology and oligonucleotide therapeutics to overcome the current limitations in delivery to muscle tissue with the goal of stopping or reversing disease progression. The FORCE platform leverages the importance of transferrin receptor 1 (TfR1) in muscle biology as the foundation for its novel approach. TfR1, which is highly expressed on the surface of muscle cells, is required for iron transport into muscle cells. Dyne links therapeutic payloads to its TfR1-binding fragment antibody (Fab) to develop targeted therapeutics for muscle diseases. About Dyne Therapeutics Dyne Therapeutics is a clinical-stage muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases. With its proprietary FORCE™ platform, Dyne is developing modern oligonucleotide therapeutics that are designed to overcome limitations in delivery to muscle tissue. Dyne has a broad pipeline for serious muscle diseases, including clinical programs for myotonic dystrophy type 1 (DM1) and Duchenne muscular dystrophy (DMD) and preclinical programs for facioscapulohumeral muscular dystrophy (FSHD). For more information, please visit https://www.dyne-tx.com/, and follow us on X, LinkedIn and Facebook. Forward-Looking Statements This press release contains forward-looking statements that involve substantial risks and uncertainties. All statements, other than statements of historical facts, contained in this press release, including statements regarding Dyne’s strategy, future operations, prospects and plans, objectives of management, the potential of the FORCE platform, the potential of DYNE-101, DYNE-251 and DYNE-302, expectations regarding the timing and outcome of interactions with global regulatory authorities, and plans to provide future updates on pipeline programs, constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “objective,” “ongoing,” “plan,” “predict,” “project,” “potential,” “should,” or “would,” or the negative of these terms, or other comparable terminology are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Dyne may not actually achieve the plans, intentions or expectations disclosed in these forward-looking statements, and you should not place undue reliance on these forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in these forward-looking statements as a result of various important factors, including: uncertainties inherent in the identification and development of product candidates, including the initiation and completion of preclinical studies and clinical trials; uncertainties as to the availability and timing of results from preclinical studies and clinical trials; the timing of and Dyne’s ability to enroll patients in clinical trials; whether results from preclinical studies and initial data from early clinical trials will be predictive of the final results of the clinical trials or future trials; uncertainties as to the FDA’s and other regulatory authorities’ interpretation of the data from Dyne's clinical trials and acceptance of Dyne's clinical programs and the regulatory approval process; whether Dyne’s cash resources will be sufficient to fund its foreseeable and unforeseeable operating expenses and capital expenditure requirements; as well as the risks and uncertainties identified in Dyne’s filings with the Securities and Exchange Commission (SEC), including the Company’s most recent Form 10-Q and in subsequent filings Dyne may make with the SEC. In addition, the forward-looking statements included in this press release represent Dyne’s views as of the date of this press release. Dyne anticipates that subsequent events and developments will cause its views to change. However, while Dyne may elect to update these forward-looking statements at some point in the future, it specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing Dyne’s views as of any date subsequent to the date of this press release. Safety data as of August 21, 2024Safety data as of August 20, 2024 Contacts: InvestorsAmy Reillyareilly@dyne-tx.com 857-341-1203 MediaStacy Nartkersnartker@dyne-tx.com 781-317-1938

WALTHAM, Mass., Sept. 23, 2024 (GLOBE NEWSWIRE) -- Dyne Therapeutics, Inc. (Nasdaq: DYN), a clinical-stage muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases, today announced that management is scheduled to participate in a fireside chat at Chardan’s 8th Annual Genetic Medicines Conference being held in New York on Monday, September 30, 2024 at 2:00 p.m. ET. A live webcast will be available in the Investors & Media section of Dyne’s website at https://investors.dyne-tx.com/news-and-events/events-and-presentations and a replay will be accessible for 90 days following the presentation. About Dyne Therapeutics Dyne Therapeutics is a clinical-stage muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases. With its proprietary FORCE™ platform, Dyne is developing modern oligonucleotide therapeutics that are designed to overcome limitations in delivery to muscle tissue. Dyne has a broad pipeline for serious muscle diseases, including clinical programs for myotonic dystrophy type 1 (DM1) and Duchenne muscular dystrophy (DMD) and a preclinical program for facioscapulohumeral muscular dystrophy (FSHD). For more information, please visit https://www.dyne-tx.com/, and follow us on X, LinkedIn and Facebook. Contact: Dyne TherapeuticsAmy Reillyareilly@dyne-tx.com 857-341-1203

→ The top leadership at Lexicon Pharmaceuticals is still undergoing a major makeover as president and COO Jeff Wade heads for the exit on Sept. 30 after 25 years with the Texas-based biotech. Wade won’t be around for the outcome of Lexicon’s latest attempt at an FDA nod in type 1 diabetes for sotagliflozin , which has a Dec. 20 decision date. The drug has already been approved for heart failure and is marketed as Inpefa . Lexicon laid off about 75 people in its sales and commercial teams in August “to right-size our promotional efforts around Inpefa for heart failure and reallocate resources to prepare for our potential launch” in type 1 diabetes and chronic kidney disease, CEO Mike Exton said in a statement. Exton succeeded Lonnel Coats as CEO a month earlier. → Sarepta Therapeutics has appointed Genmab chair Deirdre Connelly to the board of directors. Connelly had a 26-year career with Eli Lilly before pivoting to GSK in 2009 as president, North America pharmaceuticals until her retirement in 2015. She’s also a board member at Macy’s and Lincoln Financial Group . Like Janet Woodcock before him, CBER Director Peter Marks helped Sarepta cross the goal line with a label expansion in June for its Duchenne muscular dystrophy treatment Elevidys — overruling his own staff and befuddling experts. → Mitchell Chan has replaced Vit Vasista as CFO of Regenxbio at a time when the company plans to start a pivotal study for its own Duchenne gene therapy. It’s another big change for Regenxbio after Ken Mills became executive chairman and Curran Simpson succeeded Mills as CEO on July 1. Chan spent a year with Catalio Capital Management as operating partner after he was elevated to the CFO post at Viela Bio. Vasista had been finance chief since 2009 and will be an advisor until Jan. 3. → Here’s a look at some CEO news that we covered earlier this week: Former Kite Pharma commercial chief Warner Biddle has succeeded Peter Maag as CEO of Kyverna Therapeutics , which also added ex-Kite CEO Christi Shaw to the board. Shares $KYTX of Kyverna have taken a precipitous fall since its $319 million IPO in February. Ochre Bio co-founder Jack O’Meara is calling it quits after five years as CEO, but he tells Lei Lei Wu that he has an Alzheimer’s startup in the works. In a LinkedIn post announcing his departure, O’Meara also said that former F-star CEO and current Levicept chief Eliot Forster will be interim executive chair. And Shilpa Sambashivan has been promoted to CEO of Nura Bio , which stapled an additional $68 million to its Series A — bringing its total to $141 million. Sambashivan was a project team lead at Amgen before becoming a founding member at Nura Bio. → Matt Kane is taking the top spot at Celyad Oncology , a Belgian biotech that has seen considerable turnover at the top. Celyad co-founder Michel Lussier filled in as interim CEO for a second time after Georges Rawadi ’s sudden exit last December; he also took over when Filippo Petti stepped down in 2022. Kane co-founded Precision BioSciences with Derek Jantz and Jeff Smith , leading the company until he joined epigenome editing startup Tune Therapeutics as CEO in 2021. Kane’s LinkedIn page indicates that he left Tune in April, a year after he hired Jantz as CSO. → Ex- Prometheus Biosciences chief Mark McKenna has found a CFO at his new I&I bet, Mirador Therapeutics . Gregg Gilbert had been a managing director in the healthcare investment banking group for Bank of America Securities since 2021 and worked at Bank of America Merrill Lynch for 15 years. After selling Prometheus and its inflammatory bowel disease drug to Merck for $10.8 billion , McKenna wasted little time getting Mirador off the ground with a $400 million Series A in March, one of the largest private financing rounds of 2024. → GLP-1 competitor Structure Therapeutics has promoted Blai Coll to CMO and welcomed Ashley Hall as chief development officer. Coll, who replaces Mark Boch , had led clinical development for Raymond Stevens ’ crew since May 2022 and was cardiovascular and metabolic platform lead, medical affairs at the end of a six-year stint with Amgen. Hall is an Amgen vet in her own right who held the role of development chief at Reneo Pharmaceuticals . Structure’s stock price soared in June $GPCR when it produced efficacy data with its oral GLP-1 GSBR-1290 that was on par with Eli Lilly’s obesity drug orforglipron . → Novartis and Gilead veteran Matthias Will has succeeded Edgar Braendle as chief development officer at Autolus Therapeutics . Will had led clinical development at CRISPR Therapeutics and CytomX before his most recent gig as CMO of Dren Bio . The FDA is expected to make a decision by Nov. 16 on Autolus’ CD19-directed CAR-T obecabtagene autoleucel , or obe-cel . → According to an SEC filing , Crinetics chief commercial officer Jim Hassard will pack his bags on Oct. 14 in what’s described as a “termination without cause.” The 17-year Amgen vet came to Crinetics from Arrowhead Pharmaceuticals in March 2022. Phase 3 successes with its acromegaly drug paltusotine have propelled Crinetics to an NDA filing “later this year” and “an expected market launch in 2025,” CEO Scott Struthers said in the San Diego biotech’s second-quarter report. CFO Mark Wilson cited personal reasons for his own upcoming departure, which was also included in Crinetics’ Q2 update. → Allosteric drug discovery shop HotSpot Therapeutics has introduced Alison O’Neill as CMO. O’Neill is the former medical chief at Surface Oncology , which was acquired by Coherus BioSciences last year for $65 million. She had a senior leadership role in the global oncology division at Sanofi and was VP of clinical development for Radius Health . → Ex- Icosavax CEO Adam Simpson has landed at Frazier Life Sciences as a venture partner on its company creation team and will work out of Frazier’s office in San Diego. Simpson sold the vaccine developer to AstraZeneca last December, and his previous company — celiac disease specialist PvP Biologics — was purchased by Takeda in 2020. → Ruben Tommasi has been named CSO of Entact Bio , a Watertown, MA-based biotech led by ex- Ribon Therapeutics CEO Victoria Richon that is developing enhancement-targeting chimeric molecules, or ENTACs. Tommasi has also held this role at Dunad Therapeutics and AstraZeneca spinout Entasis Therapeutics . Entact Bio has kept a relatively low profile since its $81 million Series A in 2022, but it did show up in Peer Review this spring when it recruited fellow Entasis vet Michael Gutch as COO. → Third Rock ’s Treg developer Abata Therapeutics has resurfaced in Peer Review for the first time in more than a year, naming Joanne Beck as chief technical officer. The Shire and Celgene alum is the ex-technical chief at Aerium Therapeutics , the Covid biotech led by Rajeev Venkayya that recently shut down because of a surge in new variants. In April 2023, Abata poached Sonoma Biotherapeutics CMO Leonard Dragone for the same role . → Led by ex- Teva R&D chief Michael Hayden , neuro biotech Prilenia has tapped Rob Lauzen as CFO and Jason Marks as chief legal officer. Lauzen was VP, investor relations and head of financial planning & analysis at Dyne Therapeutics , which made a CMO change and lost its COO and CBO earlier this month. Marks just had a short stint with Teva as a senior legal advisor to global transactions and global finance. The Bausch Health alum has also been chief legal and compliance officer at Amarin . → San Francisco eye disease biotech Ray Therapeutics has selected Christopher Whitmore as CFO. Whitmore had held the same position with Immune-Onc Therapeutics since July 2022, and he was VP, finance & administration for Harpoon Therapeutics from 2018-21. Ray Therapeutics, which hauled in a $100 million Series A last year, will test its gene therapy RTx-015 in patients with retinitis pigmentosa. → Tris Pharma has promoted VP of marketing Manesh Naidu to the role of chief commercial officer. Naidu joined the New Jersey-based company in 2023 after a stint as chief marketing officer of Althera Pharmaceutical . Naidu’s résumé also includes stints at McKinsey , Mallinckrodt , Novartis, Pfizer and Bellerophon Therapeutics . In May, Tris snagged the first liquid non-stimulant ADHD drug approval in the US. Onyda XR will be used to treat ADHD in children at least 6 years of age. → Backed by Jeff Bezos , Seattle-based Nautilus Biotechnology has named Kentaro Suzuki as chief marketing officer. Suzuki most recently served as VP and general manager of Agilent Technologies’ mass spectrometry division. Before that, he was with Takeda and Hewlett-Packard . → San Francisco-based 89bio has appointed Teresa Perney as chief regulatory and quality officer. Perney held this title at EQRx after five years with Myovant Sciences as SVP of regulatory and quality. Madrigal Pharmaceuticals finally broke through with an FDA approval for metabolic dysfunction-associated steatohepatitis (also referred to as NASH), and 89bio is enrolling patients for late-stage studies of pegozafermin — one for non-cirrhotic MASH and another for MASH with compensated cirrhosis. “I’m eager to leverage my experience to navigate the regulatory landscape and help bring this innovative therapy to patients worldwide,” Perney said in a statement . → There’s also a new regulatory chief at Disc Medicine : Steve Caffé spent five years with CRISPR Therapeutics as head of regulatory affairs until his departure last December. Earlier, he had numerous stops as a regulatory exec with such companies as Ra Pharmaceuticals , Sucampo Pharmaceuticals , AMAG Pharmaceuticals and MedImmune . Shares of Disc $IRON fell sharply in early April after mixed data with its drug for a rare blood disorder called erythropoietic protoporphyria, but have rebounded since. → Although AI-designed drugs haven’t exactly lived up to the hype, companies like BPGbio are trying to flip the narrative. This week, GSK alum John Beeler has joined the team as SVP of business development. Beeler comes to BPGbio from Bristol Myers Squibb , where he took on the role of business development search & evaluation lead. → Macrocycle startup Circle Pharma has brought in Marie Evangelista as SVP and head of cancer biology, and promoted Constantine Kreatsoulas to SVP and head of discovery technology sciences. Evangelista spent the last two years as VP of oncology at one of the most ambitious AI drug developers , Recursion . The longtime Genentech vet also had a brief tenure with Frontier Medicines as senior director of translation medicine. Kreatsoulas had a nine-year run at GSK and was the pharma giant’s interim head, computational toxicology before coming to Circle in 2021 as head of research and VP, research informatics and computational chemistry. Circle disclosed its $54 million Series D in an SEC filing this summer. → South San Francisco-based Ideaya Biosciences has recruited Douglas Snyder as general counsel. Snyder most recently served as chief legal officer and secretary of GW Pharmaceuticals . Earlier in his career, Snyder was general counsel and secretary at Actelion and Eisai . Back in July, Ideaya inked a $406.5 million deal with Biocytogen . → Deerfield Group has rolled out the welcome mat for two new execs: Guy Varady as EVP, integrated marketing and Bob Josefsberg as EVP, communications. Before this, Varady was SVP, management supervisor for DDB Health and held a number of roles at IPG Health and Omnicom Health Group . Meanwhile, Josefsberg was VP, corporate communications at Karuna Therapeutics and managing director at Chamberlain Healthcare Public Relations . → Tempest Therapeutics , which revealed early PFS and OS data for its liver cancer combo last October, has brought on Sheldon Mullins as VP, regulatory affairs. Mullins joins the team after gigs at Arrowhead Pharmaceuticals and Ardelyx . Earlier in his career, Mullins was with Anacor Pharmaceuticals , Onyx Pharmaceuticals and Genentech. In addition to Mullins’ appointment, Darrin Bomba and Henry Johnson have been promoted to the titles of VP, development operations and VP, CMC & medicinal chemistry, respectively. → Entrada Therapeutics CEO Dipal Doshi has picked up a seat on the board of directors at āshibio , a California biotech that will push its ex-Gilead drug andecaliximab into a Phase 2/3 study for patients with an ultra-rare bone disorder called fibrodysplasia ossificans progressiva (FOP). Āshibio came out of stealth mode this summer with a $40 million raise . → Akari Therapeutics , which is developing PAS-nomacopan for geographic atrophy, has elected former Epizyme CEO Rob Bazemore to the board of directors. Bazemore is also a board member at Ardelyx and Nuvation Bio .