Givinostat Hydrochloride

The HDAC inhibitor pipeline remains active, with several next-generation agents advancing in clinical trials. Abexinostat (Xynomic Pharmaceuticals) is in Phase III development for renal cell carcinoma, representing a potential expansion into solid tumors. Quisinostat (Viriom) is in Phase II for uveal melanoma, and Entinostat, partnered between EOC Pharma and Syndax, is being explored in Hodgkin lymphoma. LAS VEGAS, Aug. 20, 2025 /PRNewswire/ -- DelveInsight's HDAC Inhibitors Market Size, Target Population, Competitive Landscape & Market Forecast report includes a comprehensive understanding of current treatment practices, addressable patient population, which includes top indications such as Multiple Myeloma, Peripheral T-cell Lymphoma (PTCL), Cutaneous T-cell Lymphoma (CTCL), Amyotrophic Lateral Sclerosis (ALS), and others. The selected indications are based on approved therapies and ongoing pipeline activity. The report also provides insights into the emerging HDAC inhibitors, market share of individual therapies, and current and forecasted market size from 2020 to 2034, segmented into 7MM. Key Takeaways from the HDAC Inhibitors Market Report As per DelveInsight's analysis, the total market size of HDAC inhibitors in the 7MM is expected to surge significantly by 2034. The report provides the total potential number of patients in the indications, such as Multiple Myeloma, Peripheral T-cell Lymphoma (PTCL), Cutaneous T-cell Lymphoma (CTCL), Amyotrophic Lateral Sclerosis (ALS), and others. Leading HDAC inhibitor companies, such as Xynomic Pharmaceuticals, Viriom, EOC Pharma, Syndax Pharmaceuticals, Jubilant Therapeutics, and others, are developing novel HDAC inhibitors that can be available in the HDAC inhibitors market in the coming years. Some of the key HDAC inhibitors in the pipeline include Abexinostat, Quisinostat, Entinostat, JBI-802, and others. Discover which indication is expected to grab the major HDAC inhibitors market share @ HDAC Inhibitors Market Report HDAC Inhibitors Overview Histone deacetylases (HDACs) remove acetyl groups from both histone and non-histone proteins. Because acetylation of histones is linked to an open chromatin structure and active gene transcription, HDAC activity leads to histone deacetylation and epigenetic suppression of gene expression. Since HDACs influence many pathways involved in cancer development, HDAC inhibitors (HDACis) show clinical effects through several mechanisms, including changes in gene expression of cell cycle and apoptotic proteins, acetylation of other proteins involved in cell growth and survival, effects on angiogenesis, aggresome formation, and DNA repair. There are 18 known HDACs, divided into two major groups and four classes based on their cellular location, homology, enzyme mechanism, sequence of discovery, and histone substrate specificity. The first group includes zinc-dependent HDACs, which all share a similar catalytic core for deacetylating acetyl-lysine residues. These comprise Class I (HDAC1, -2, -3, -8), Class II (IIa: HDAC4, -5, -7, -9; IIb: HDAC6, -10), and Class IV (HDAC11). The second group includes Class III HDACs (sirtuins, SIRT1–7), which rely on NAD+ for their enzymatic activity. HDAC Inhibitors Epidemiology Segmentation The HDAC inhibitors market report proffers epidemiological analysis for the study period 2020–2034 in the 7MM, segmented into: Total Cases of Selected Indications for HDAC Inhibitor Total Eligible Patient Pool of Selected Indications for HDAC Inhibitor Total Treated Cases of Selected Indications for HDAC Inhibitor HDAC Inhibitors Treatment Market Several HDAC inhibitors are currently available on the market. Recent entrants include DUVYZAT (givinostat), while earlier approved drugs include BELEODAQ (belinostat), HIYASTA (tucidinostat), among others. DUVYZAT is a histone deacetylase inhibitor approved for treating Duchenne muscular dystrophy (DMD) in patients aged 6 and above. While it is categorized as an HDAC inhibitor, its exact mechanism of action in DMD is not fully understood. In April 2025, Italfarmaco announced that the CHMP of the European Medicines Agency (EMA) issued a positive opinion on DUVYZAT. The drug is also being evaluated in other indications: Phase III trial in Becker muscular dystrophy (BMD) and Phase II trial in polycythemia vera. HIYASTA (HBI-8000) is an epigenetic immunomodulator approved for several indications, including use as monotherapy for certain subtypes of relapsed or refractory T-cell non-Hodgkin's lymphoma, specifically adult T-cell leukemia-lymphoma (ATLL) and peripheral T-cell lymphoma (PTCL) in Japan. HUYABIO International is conducting a multinational Phase III trial evaluating HIYASTA in combination with nivolumab for previously untreated metastatic or unresectable malignant melanoma. HIYASTA is an oral HDAC Class I inhibitor that induces cell cycle arrest and apoptosis in tumor cells, which underlies its efficacy in lymphoma. In September 2020, the Japanese Ministry of Health, Labour and Welfare (MHLW) granted orphan drug designation (ODD) to HIYASTA for relapsed/refractory ATL, and in December 2015 for PTCL. In June 2021, HUYABIO also received regulatory approval in Japan for HBI-8000 as monotherapy for relapsed/refractory ATL. Key Emerging HDAC Inhibitors and Companies Xynomic Pharmaceuticals (Abexinostat), Viriom (Quisinostat), EOC Pharma/Syndax Pharmaceuticals (Entinostat), Jubilant Therapeutics (JBI-802), and several other companies are currently engaged in the development and production of HDAC inhibitors, which have the potential to significantly impact and enhance the HDAC inhibitors market. Abexinostat, an oral, broad-spectrum HDAC inhibitor originally developed by Pharmacyclics and later licensed by Xynomic Pharmaceuticals in 2017, has demonstrated encouraging activity in both blood cancers and solid tumors. The drug is currently being studied in several Phase I to III clinical trials worldwide. In September 2019, Xynomic announced that the FDA had granted Fast Track Designation (FTD) to abexinostat as a monotherapy for fourth-line treatment of relapsed or refractory follicular lymphoma. The FDA had previously granted FTD for abexinostat in combination with pazopanib for first- or second-line therapy in renal cell carcinoma. Additional Phase II trials are underway in indications such as Diffuse Large B-cell Lymphoma (DLBCL) and Follicular Lymphoma. Quisinostat is another potent, selective oral pan-HDAC inhibitor, initially developed by Janssen Pharmaceuticals. HDAC inhibitors work by inducing cell cycle arrest, promoting differentiation, and triggering apoptosis in various human cancer cell lines. By inhibiting histone deacetylase, they increase acetylation of histone proteins, resulting in a more transcriptionally active chromatin state and altered gene expression involved in proliferation, apoptosis, and differentiation. Multiple preclinical studies and Phase I/II trials have evaluated quisinostat's safety and effectiveness, showing promising anti-tumor effects in several advanced and treatment-resistant cancers — including platinum-resistant ovarian cancer (in combination with paclitaxel and carboplatin), uveal melanoma, and synovial sarcoma. The anticipated launch of these emerging therapies are poised to transform the HDAC inhibitors market landscape in the coming years. As these cutting-edge therapies continue to mature and gain regulatory approval, they are expected to reshape the HDAC inhibitors market landscape, offering new standards of care and unlocking opportunities for medical innovation and economic growth. To know more about HDAC inhibitors clinical trials, visit @ HDAC Inhibitors Treatment Recent Developments in the HDAC Inhibitors Space In May 2025, Amylyx Pharmaceuticals announced positive Week 48 data from the Phase II open-label HELIOS clinical trial of AMX0035 in adults living with Wolfram syndrome. In May 2025, the University of Miami, in collaboration with Viriom, initiated a Phase II clinical trial in the US (NCT06932757) to evaluate an oral therapy for patients with uveal melanoma who have undergone at least one prior line of treatment. In April 2025, Xynomic Pharmaceuticals concluded a Phase I/II clinical trial in the United States (NCT03939182), evaluating a combination oral therapy for patients with Diffuse Large B-cell Lymphoma and Mantle Cell Lymphoma who had received at least one prior line of treatment. Discover more about HDAC inhibitors in development @ HDAC Inhibitors Clinical Trials HDAC Inhibitors Market Dynamics HDAC inhibitors are a class of epigenetic drugs that modify gene expression by altering chromatin structure. Initially developed as anticancer agents, they have shown significant therapeutic potential in various malignancies, especially hematologic cancers like T-cell lymphoma and multiple myeloma. The market initially gained traction with FDA approvals of drugs such as Vorinostat, Romidepsin, and Panobinostat. Their unique mechanism of action targeting epigenetic regulation drew interest as precision medicine and oncology research grew, driving pharmaceutical investment in this segment. The HDAC inhibitors market continues to expand largely due to the rising prevalence of cancer worldwide and the need for more targeted therapies with better safety profiles. Additionally, ongoing clinical trials are exploring HDAC inhibitors in combination with other therapies, such as immune checkpoint inhibitors, proteasome inhibitors, and traditional chemotherapeutics. These combination approaches aim to overcome resistance and enhance efficacy, creating more opportunities for market growth. As more data emerges demonstrating synergistic benefits, partnerships between biotech startups and large pharmaceutical firms are accelerating further development. Despite this positive outlook, the market faces several challenges. Many HDAC inhibitors are associated with toxicity issues such as fatigue, gastrointestinal disturbances, and thrombocytopenia, which limit broader adoption. Competition from newer targeted therapies and immuno-oncology drugs also puts pressure on the HDAC inhibitor segment. Moreover, several compounds failed in late-stage trials due to a lack of efficacy, leading to cautious investor sentiment and prioritization of combination rather than monotherapy approaches. Looking ahead, the market dynamics are expected to be shaped increasingly by precision oncology trends and biomarker-driven patient selection, allowing more effective targeting of responders. If safety profiles can be improved and combination regimens continue to show strong results, HDAC inhibitors will retain a meaningful role in the evolving oncology landscape. Novel formulations, selective HDAC isoform inhibitors, and expansion into non-oncology indications such as neurodegenerative or inflammatory diseases may further diversify the market and drive its next phase of growth. Learn more about the HDAC inhibitors @ HDAC Inhibitors Analysis Scope of the HDAC Inhibitors Market Report HDAC Inhibitors Therapeutic Assessment: HDAC Inhibitors' current marketed and emerging therapies HDAC Inhibitors Market Dynamics: Conjoint Analysis of Emerging HDAC Inhibitor Drugs Competitive Intelligence Analysis: SWOT analysis and Market entry strategies Unmet Needs, KOL's views, Analyst's views, HDAC Inhibitors Market Access and Reimbursement Table of Contents Related Reports Multiple Myeloma Market Multiple Myeloma Market Insights, Epidemiology, and Market Forecast – 2034 report delivers an in-depth understanding of the disease, historical and forecasted epidemiology, as well as the market trends, market drivers, market barriers, and key multiple myeloma companies, including Sanofi, Karyopharm Therapeutics, Takeda Pharmaceutical, Celgene, Bristol-Myers Squibb, RAPA Therapeutics, Pfizer, Array Biopharma, Cellectar Biosciences, BioLineRx, Celgene, Aduro Biotech, ExCellThera, Janssen Pharmaceutical, Precision BioSciences, Takeda, Glenmark (Ichnos Sciences SA), Poseida Therapeutics, Molecular Partners AG, Chipscreen Biosciences, AbbVie, Genentech (Roche), Janssen Biotech, Nanjing Legend Biotech, Merck Sharp & Dohme Corp., among others. 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In total, 11 abstracts on givinostat were accepted for presentation at the Congress, including two for an oral presentation MILAN, Italy, July 11, 2025 – Italfarmaco S.p.A. announced today that new cardiac data for givinostat, a novel histone deacetylase (HDAC) inhibitor, in ambulant boys with Duchenne muscular dystrophy (DMD) will be presented at the European Paediatric Neurology Society (EPNS) Congress, taking place July 8 - 12, 2025 in Munich, Germany. Post hoc analysis from the completed Phase 3 EPIDYS trial showed less decline in cardiac function throughout the study, compared to those who received placebo. In addition, the analysis showed no prolongation of the QTc interval in either the placebo or givinostat treatment groups. In a separate crossover study conducted by Italfarmaco in healthy volunteers to assess the impact of a therapeutic and supratherapeutic dose of givinostat, the administration of the therapeutic dose was not associated with any risk of QTc interval prolongation. “Individuals with Duchenne are at risk of cardiac complications as the disease progresses. The beneficial trend observed with givinostat in preserving heart function compared to placebo is encouraging,” stated Paolo Bettica, MD, PhD, Chief Medical Officer at Italfarmaco Group. “Furthermore, these data support the cardiac safety profile of givinostat, providing additional confidence for its use. We are pleased to share these findings at the EPNS Congress.” Individuals with DMD experience progressive skeletal muscle degeneration, and over time, they are also at risk of developing impaired cardiac function. Reduced mobility and the underlying genetic defect contribute to an increased risk of cardiomyopathy and arrhythmias, making routine cardiac monitoring a critical component of clinical care and disease management. In the EPIDYS study, 179 ambulatory boys aged 6 years and older with genetically confirmed DMD were assessed throughout the 72-week trial on electrocardiogram (ECG) and echocardiogram (ECHO) parameters. At the end of the study, the givinostat-treated group showed a beneficial trend compared to the placebo group. In a separate Phase 1 crossover study, Italfarmaco evaluated the cardiac safety profile of a therapeutic and supratherapeutic dose of givinostat in healthy volunteers. The data demonstrated that the therapeutic dose of givinostat is not expected to pose a risk of QTc prolongation. The therapeutic dose of givinostat had no clinically relevant effect on heart rate or cardiac conduction, nor did it have a clinically relevant effect on the QTc interval. A total of 11 abstracts related to givinostat were accepted for either oral or poster presentation at the EPNS Congress. The list of all abstracts accepted for presentations can be accessed on the EPNS website using the search term “givinostat.” The European Commission (EC) granted givinostat (Duvyzat®) conditional marketing authorisation in the EU in June 2025 to ambulant DMD patients 6 years and older. Givinostat was also granted approval by the US Food and Drug Administration (FDA) in March 2024 for the treatment of DMD patients 6 years and older. In December 2024, the UK’s Medicines and Healthcare products Regulatory Agency (MHRA) approved givinostat for patients 6 years and older who are ambulatory and granted conditional marketing approval for non-ambulatory patients. About Duchenne Muscular Dystrophy Duchenne muscular dystrophy (DMD) is a rare, progressive neuromuscular disorder caused by mutations in the DMD gene. Mutations in the DMD gene prevent the production of functional dystrophin, causing the dystrophin-associated protein complex (DAPC) to break down. This makes muscle fibres more vulnerable to damage and increases histone deacetylase (HDAC) levels in the muscle cells, blocking the activation of important genes needed for muscle maintenance and repair. As a result, muscle fibres experience ongoing damage, leading to chronic inflammation and poor regeneration. Over time, muscle cells die and are replaced by scar tissue and fat.1-4 DMD primarily affects males, with symptoms typically appearing between the ages of two and five. As the condition progresses, muscle weakness worsens, leading to difficulty walking and eventually to loss of ambulation. Over time, the heart and respiratory muscles are also affected, which are the leading causes of premature death.5 DMD is one of the most severe and common forms of childhood muscular dystrophy, with a global birth incidence of approximately 1 in 5,050 boys.6 About ITALFARMACO Founded in 1938 in Milan, Italy, Italfarmaco is a private global pharmaceutical company that has led the successful development and approval of many pharmaceutical products around the world. The Italfarmaco group has operations in more than 90 countries through directly controlled or affiliated companies. The company is a leader in pharmaceutical research, product development, production and commercialisation with proven success in many therapeutic areas including immuno-oncology, gynaecology, neurology, cardiovascular disease and rare diseases. Italfarmaco's rare disease unit includes programmes in Duchenne muscular dystrophy, Becker muscular dystrophy, amyotrophic lateral sclerosis and polycythaemia vera. Media enquiries:Anja Heuer / Adolfo Luna | +49 (0) 151 106 199 05 | italfarmaco@trophic.eu Other enquiries:Samantha Parker | Patient Advocacy and Communications Lead | RDEnquiries@italfarmacogroup.com References: Sandonà M, Cavioli G, Renzini A, et al. Histone Deacetylases: Molecular Mechanisms and Therapeutic Implications for Muscular Dystrophies. Int J Mol Sci. 2023;24(5):4306. https://doi-org.sutd.idm.oclc.org/10.3390/ijms24054306.Consalvi S, Saccone V, Giordani L, Minetti G, Mozzetta C, Puri PL. Histone Deacetylase Inhibitors in the Treatment of Muscular Dystrophies: Epigenetic Drugs for Genetic Diseases. Mol Med. 2011;17(5):457–465. https://doi-org.sutd.idm.oclc.org/10.2119/molmed.2011.00049.Bez Batti Angulski A, Hosny N, Cohen H, et al. Duchenne muscular dystrophy: disease mechanism and therapeutic strategies. Front Physiol. 2023;14:1183101. https://doi-org.sutd.idm.oclc.org/10.3389/fphys.2023.1183101.Giuliani G, Rosina M, Reggio A. Signaling pathways regulating the fate of fibro/adipogenic progenitors (FAPs) in skeletal muscle regeneration and disease. FEBS J. 2022;289(21):6484–6517. https://doi-org.sutd.idm.oclc.org/10.1111/febs.16080.Walter MC, Reilich P. Recent developments in Duchenne muscular dystrophy: facts and numbers. J Cachexia Sarcopenia Muscle. 2017;8(5):681–685. https://doi-org.sutd.idm.oclc.org/10.1002/jcsm.12245.Crisafulli S, Sultana J, Fontana A, Salvo F, Messina S, Trifirò G. Global epidemiology of Duchenne muscular dystrophy: an updated systematic review and meta-analysis. Orphanet J Rare Dis. 2020;15(1):141. https://doi-org.sutd.idm.oclc.org/10.1186/s13023-020-01430-8. Attachment Italfarmaco Presents New Cardiac Data for Givinostat at EPNS Congress