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Novo Nordisk A/S: Mim8 prophylaxis treatment shown to be well-tolerated when switching from emicizumab in people with haemophilia A in new phase 3 data presented at the ISTH 2025 Congress
By GlobeNewswire Published on June 23, 2025, 00:35 IST New FRONTIER5 data show that a direct switch to investigational Mim8 (denecimig) prophylaxis treatment from emicizumab, without the need for a washout period, was well-tolerated with no safety concerns in adults and adolescents with haemophilia A, with or without inhibitors 1 . . Switching to Mim8 led to a sustained increase in thrombin generation into the normal range, but without causing thrombin levels that might pose a thrombotic risk 1 . . FRONTIER5 Patient-Reported Outcomes (PROs) assessment found the Mim8 pen-injector easy to use, with strong user preference over their emicizumab injection system 2 . . These results add to the overall safety profile of Mim8 based on the FRONTIER clinical trial programme3. Bagsværd, Denmark, 22 June 2025 – Novo Nordisk today presented results from the phase 3b FRONTIER5 trial showing that a direct switch to investigational Mim8 (denecimig) prophylaxis from emicizumab treatment, without a washout period or Mim8 loading dose, was well-tolerated with no safety concerns in adults and adolescents living with haemophilia A, with or without inhibitors1. Additionally, a FRONTIER5 Patient-Reported Outcomes (PROs) assessment found the Mim8 pen-injector easy to use, with an overall strong user preference for the pen-injector compared to the previous emicizumab injection system2,3. The results were presented at the International Society on Thrombosis and Haemostasis (ISTH) Congress in Washington, D.C. In the study, the first Mim8 maintenance dose was administered on the next planned emicizumab dosing day. Patients were given the option of switching to once-monthly, once every two weeks or once-weekly dosing frequencies of Mim8, regardless of their prior dosing frequency1,3. Steady-state Mim8 concentration was achieved by Week 16, and emicizumab elimination was completed by Week 261. Switching to Mim8 led to a sustained increase in thrombin peak levels without an exaggerated thrombin response1. 'Continuous prophylactic coverage is critical to avoiding breakthrough bleeds in people living with haemophilia; with new non-factor therapeutic options, many people could have hesitations about switching treatment options. These data demonstrate that switching to Mim8 from emicizumab can be done without requiring a washout period,' said Allison P. Wheeler, MD, Washington Center for Bleeding Disorders, Seattle, WA. 'This is critical in ensuring that individuals maintain continuous protection against bleeding events as we seek to help address the ongoing needs of people living with this complex disease.' The open-label phase 3b FRONTIER5 study consisted of 61 adults and adolescents, aged 12 years and older, with haemophilia A. Mim8 was well-tolerated with no safety concerns. No thromboembolic events, hypersensitivity reactions, or treatment-emergent adverse events (TEAEs) leading to discontinuation were observed, and there was no clinical evidence of neutralising anti-Mim8 antibodies1. The PROs data from FRONTIER5 indicated a strong overall preference for the Mim8 pen-injector, with 97% (n=57/59) of patients reporting a 'very strong' or 'fairly strong' preference in comparison to their previous emicizumab injection system2. Of the participants who completed the Haemophilia Device Handling and Preference Assessment (HDHPA) questionnaire at week 26, 98% (n=58/59) found the Mim8 pen-injector 'very easy' or 'easy' to use, and 95% (n=56/59) found it 'much easier' or 'easier' compared with their previous administration method. All participants (100%) were 'extremely confident' or 'very confident' in using the pen-injector correctly, and most participants (83%; n=49/59) found it 'very easy' to inject the dose2. 'The FRONTIER5 safety and patient-reported outcomes data support Mim8 as a potential future treatment option for people living with haemophilia A and demonstrate our continued commitment to developing innovative treatment options for this community', said Stephanie Seremetis, chief medical officer and CVP for Haemophilia at Novo Nordisk. 'These results give valuable insights into haemophilia A management, highlight the feasibility of directly switching to Mim8 from emicizumab, and reveal a strong patient preference for the Mim8 pen-injector device.' Novo Nordisk expects to submit Mim8 for regulatory review during 2025. Data from the ongoing phase 3 FRONTIER programme will be disclosed at upcoming congresses and in publications in 2025 and 2026. About haemophilia Haemophilia is a rare inherited bleeding disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding4. It is estimated to affect approximately 1,125,000 people worldwide5. There are different types of haemophilia, which are characterised by the type of clotting factor protein that is defective or missing4. Haemophilia A is caused by a missing or defective clotting Factor VIII (FVIII), and haemophilia B is caused by a missing or defective clotting Factor IX4. Inhibitors are an immune system response to the clotting factors in replacement therapy. Currently, it is estimated that up to 30% of people living with severe haemophilia A develop inhibitors6 that can cause replacement therapies to stop working. About Mim8 Mim8 is an investigational FVIIIa mimetic bispecific antibody optimised with the aim to deliver improved potency and sustained efficacy across flexible dosing intervals up to once-monthly prophylaxis for people living with haemophilia A, with or without inhibitors7-10. Administered under the skin, Mim8 bridges Factor IXa and Factor X. This action replaces FVIII function, which helps restore the body's thrombin generation capacity into the normal range, helping blood to clot7,11. The use of Mim8 in people living with haemophilia A is investigational and not approved by regulatory authorities or available anywhere in the world. About the FRONTIER5 trial FRONTIER5 is a single-arm, open-label, 26-week, phase 3b trial evaluating the safety of switching from previous emicizumab prophylaxis treatment directly to Mim8 prophylaxis treatment using the Mim8 pen-injector in adults and adolescents with haemophilia A, with or without inhibitors3. The FRONTIER clinical programme investigates Mim8 as a prophylaxis treatment for people with haemophilia A, with or without inhibitors. This programme includes FRONTIER1, FRONTIER2, FRONTIER3, FRONTIER4 and FRONTIER53,12-15. About Novo Nordisk Novo Nordisk is a leading global healthcare company founded in 1923 and headquartered in Denmark. Our purpose is to drive change to defeat serious chronic diseases built upon our heritage in diabetes. We do so by pioneering scientific breakthroughs, expanding access to our medicines, and working to prevent and ultimately cure disease. Novo Nordisk employs about 77,400 people in 80 countries and markets its products in around 170 countries. For more information, visit , Facebook , Instagram , X , LinkedIn and YouTube . Contacts for further information _______________________ References Oldenberg J, Benson G, Chowdaryet P, et al. FRONTIER5 direct switch study: Safety of initiating Mim8 prophylaxis without washout of emicizumab. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21-25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13686. Mahlangu J, Ahuja S, Cockrell E, et al. FRONTIER5 device handling and patient-reported outcomes. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21–25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13786. A Research Study Looking at How Safe it is to Switch From Emicizumab to Mim8 in People With Haemophilia A (FRONTIER5). Available at: Last accessed: June 2025. MedlinePlus. Hemophilia. Available at: Last accessed: June 2025. Iorio A, Stonebraker JS, Chambost H, et al. Establishing the Prevalence and Prevalence at Birth of Hemophilia in Males: A Meta-analytic Approach Using National Registries. Ann Intern Med. 2019;171:540–546. doi: 10.7326/M19-1208. Kim JY, You CW. The prevalence and risk factors of inhibitor development of FVIII in previously treated patients with hemophilia A. Blood Res. 2019;54:204-209. doi: 10.5045/br.2019.54.3.204. Ostergaard H, Lund J, Greisen PJ, et al. A factor VIIIa-mimetic bispecific antibody, Mim8, ameliorates bleeding upon severe vascular challenge in hemophilia A mice. Blood. 2021;138:1258-1268. doi: 10.1182/blood.2020010331. Mancuso EM, et al. Efficacy and safety of Mim8 prophylaxis in adults and adolescents with hemophilia A with or without inhibitors: Phase 3, open-label, randomized, controlled FRONTIER2 study. Abstract presented at the International Society on Thrombosis and Haemostasis (ISTH) 2024 Congress. Kenet G, et al. Patient- and caregiver-reported outcomes with subcutaneous Mim8 prophylaxis in paediatric patients with haemophilia A with or without factor VIII inhibitors: phase 3 FRONTIER3 study. Abstract presented at the European Association for Haemophilia and Allied Disorders (EAHAD) 2025 Annual Congress. Session 6. Chowdary P, Banchev AM, Kavakli K, et al. Safety and Efficacy of Mim8 Prophylaxis Administered Once Every Two Weeks for Patients with Hemophilia A with or without Inhibitors: Interim Analysis of the FRONTIER4 Open-Label Extension Study. Abstract presented at the American Society of Hematology (ASH) 2024 Annual Congress. Session: 322. U.S. National Library of Medicine. F8 gene. MedlinePlus Genetics. Available at Last accessed: June 2025. A Research Study Investigating Mim8 in People With Haemophilia A (FRONTIER1). Available at: Last accessed: June 2025. A Research Study Investigating Mim8 in Adults and Adolescents With Haemophilia A With or Without Inhibitors. Available at: Last accessed: June 2025. A Research Study Looking at Mim8 in Children With Haemophilia A With or Without Inhibitors. Available at: Last accessed: June 2025. A Research Study Looking at Long-term Treatment With Mim8 in People With Haemophilia A (FRONTIER4). Available at: Last accessed: June 2025. Attachment Disclaimer: The above press release comes to you under an arrangement with GlobeNewswire. Business Upturn takes no editorial responsibility for the same. Ahmedabad Plane Crash GlobeNewswire provides press release distribution services globally, with substantial operations in North America and Europe.
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Mim8 prophylaxis treatment shown to be well-tolerated when switching from emicizumab in people with hemophilia A in new phase 3 data presented at the ISTH 2025 Congress
New FRONTIER5 results show a direct switch to investigational Mim8 (denecimig) prophylaxis treatment from emicizumab, without the need for a washout period, was well-tolerated in adults and adolescents with hemophilia A, with or without inhibitors1 FRONTIER5 Patient-Reported Outcomes assessment found the Mim8 pen-injector easy to use with strong user preference over their emicizumab injection system2 PLAINSBORO, N.J., June 22, 2025 /PRNewswire/ -- Novo Nordisk today presented results from the phase 3b FRONTIER5 trial showing that a direct switch to investigational Mim8 (denecimig) prophylaxis from emicizumab treatment, without a washout period or Mim8 loading dose, was well tolerated in adults and adolescents living with hemophilia A, with or without inhibitors.1 Additionally, a FRONTIER5 Patient-Reported Outcomes (PROs) assessment found the Mim8 pen-injector easy to use with an overall strong user preference for the pen-injector, in comparison to previous injection systems.2 The results were presented at the International Society on Thrombosis and Haemostasis (ISTH) Congress in Washington, D.C. "Continuous prophylactic coverage is critical to avoiding breakthrough bleeds in people living with hemophilia; with new non-factor therapeutic options, many people could have hesitations about switching treatment options. These data demonstrate that switching to Mim8 from emicizumab can be done without requiring a washout period," said Allison P. Wheeler, MD, Washington Center for Bleeding Disorders, Seattle, WA. "This is critical in ensuring that individuals maintain continuous protection against bleeding events as we seek to help address the ongoing needs of people living with this complex disease." In the open-label phase 3 FRONTIER5 safety study, 61 adults and adolescents aged 12 years and older with hemophilia A were enrolled.3 No thromboembolic events, hypersensitivity reactions, or treatment-emergent adverse events (TEAEs) leading to discontinuation were observed, and there was no evidence of neutralizing anti-Mim8 antibodies.1 Additional safety information from FRONTIER5 demonstrate that between Week 0 and Week 26 of treatment, there were 107 TEAEs observed in 43 patients (70.5%), most of which were mild to moderate (88.6%). There were 24 TEAEs that were possibly/probably related to Mim8 reported in 18 patients (29.5%). No thromboembolic events, hypersensitivity reactions, or TEAEs leading to discontinuation were observed.1 The PROs data from FRONTIER5 indicated overall (97%; n=57/59) patients preferred the Mim8 pen injection, with 97% of those patients reporting a "very strong" or "fairly strong" preference in comparison to their previous emicizumab injection system. Of the participants who completed the Hemophilia Device Handling and Preference Assessment (HDHPA) questionnaire at week 26, 98% (n=58/59) found the Mim8 pen-injector "very easy" or "easy" to use, and 95% (n=56/59) found it "much easier" or "easier" compared with their previous administration method. All participants (100%) were "extremely confident" or "very confident" in using the pen-injector correctly.2 "The FRONTIER5 safety and patient-reported outcomes data support Mim8 as a potential future treatment option for people living with hemophilia A and demonstrate our continued commitment to developing innovative treatment options for the hemophilia community," said Stephanie Seremetis, Chief Medical Officer and CVP for Rare Disease at Novo Nordisk. "These results give valuable insights into hemophilia A management, highlight the feasibility of directly switching to Mim8 from emicizumab, and reveal a strong patient preference for the Mim8 pen-injector device." Novo Nordisk aims to submit Mim8 for U.S. and EU regulatory review during 2025. Data from the ongoing phase 3 FRONTIER program will be disclosed at upcoming congresses and in publications in 2025 and 2026. About hemophiliaHemophilia is a rare inherited bleeding disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding.4 It is estimated to affect approximately 1,125,000 people worldwide.5 There are different types of hemophilia, which are characterized by the type of clotting factor protein that is defective or missing.4 Hemophilia A is caused by a missing or defective clotting Factor VIII (FVIII), and hemophilia B is caused by a missing or defective clotting Factor IX.4 Inhibitors are an immune system response to the clotting factors in replacement therapy. Currently, it is estimated that up to 30% of people living with severe hemophilia A have inhibitors that can cause replacement therapies to stop working.6 About Mim8Mim8 is an investigational FVIIIa mimetic bispecific antibody designed with the aim to deliver once-monthly, once-every-two-weeks, or once-weekly prophylaxis for people living with hemophilia A, with or without inhibitors.7,8 Administered under the skin, Mim8 bridges Factor IXa and Factor X. This action replaces FVIII function, which helps restore the body's thrombin generation capacity, helping blood to clot.7,9 The use of Mim8 in people living with hemophilia A is investigational and not approved by regulatory authorities or available anywhere in the world. About the FRONTIER5 trialFRONTIER5 is a single-arm, open-label, 26-week, phase 3b trial evaluating the safety of switching from previous emicizumab prophylaxis treatment directly to Mim8 prophylaxis treatment using the Mim8 pen-injector in adults and adolescents with hemophilia A, with or without inhibitors.1 The FRONTIER clinical program investigates Mim8 as a prophylaxis treatment for people with hemophilia A, with or without inhibitors. The phase 3 program includes FRONTIER1, FRONTIER2, FRONTIER3, FRONTIER4 and FRONTIER5.1,8,10-12 About Novo Nordisk Novo Nordisk is a leading global healthcare company that's been making innovative medicines to help people with diabetes lead longer, healthier lives for more than 100 years. This heritage has given us experience and capabilities that also enable us to drive change to help people defeat other serious chronic diseases such as obesity, rare blood, and endocrine disorders. We remain steadfast in our conviction that the formula for lasting success is to stay focused, think long-term, and do business in a financially, socially, and environmentally responsible way. With a U.S. presence spanning 40 years, Novo Nordisk U.S. is headquartered in New Jersey and employs over 10,000 people throughout the country across 12 manufacturing, R&D, and corporate locations in eight states plus Washington DC. For more information, visit Facebook, Instagram, and X. Contacts for further information: Media: Liz Skrbkova (US)+1 609 917 0632NNIMediaTeam@ James-Brown (Global)+45 3079 9289Globalmedia@ Investors: Frederik Taylor Pitter (US) +1 609 613 0568fptr@ Martin Wiborg Rode (Global)+45 3075 5956jrde@ Meyer (Global) +45 3079 6656 azey@ Schaap Melvold (Global) +45 3077 5649 idmg@ Ung (Global)+45 3077 6414mxun@ References Oldenberg J, Benson G, Chowdaryet P, et al. FRONTIER5 direct switch study: safety of initiating Mim8 prophylaxis without washout of emicizumab. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21-25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13686. Mahlangu J, Ahuja S, Cockrell E, et al. FRONTIER5 device handling and patient-reported outcomes. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21–25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13786. A Research Study Looking at How Safe it is to Switch From Emicizumab to Mim8 in People With Haemophilia A (FRONTIER5). Last accessed May 2025. Available at MedlinePlus. Hemophilia. Last accessed May 2025. Available at Iorio A, Stonebraker JS, Chambost H, et al. Establishing the Prevalence and Prevalence at Birth of Hemophilia in Males: A Meta-analytic Approach Using National Registries. Ann Intern Med. 2019;171:540-546. Kim JY, You CW. The prevalence and risk factors of inhibitor development of FVIII in previously treated patients with hemophilia A. Blood Res. 2019;54:204-209. Ostergaard H, Lund J, Greisen PJ, et al. A factor VIIIa-mimetic bispecific antibody, Mim8, ameliorates bleeding upon severe vascular challenge in hemophilia A mice. Blood. 2021;138:1258-1268. A Research Study Looking at Long-term Treatment With Mim8 in People With Haemophilia A (FRONTIER4). Last accessed May 2025. Available at U.S. National Library of Medicine. F8 gene. MedlinePlus Genetics. Last accessed May 2025. Available at A Research Study Investigating Mim8 in People With Haemophilia A. Last accessed June 2025. Available at A Research Study Investigating Mim8 in Adults and Adolescents With Haemophilia A With or Without Inhibitors. Last accessed May 2025. Available at A Research Study Looking at Mim8 in Children With Haemophilia A With or Without Inhibitors. Last accessed May 2025. Available at Novo Nordisk is a registered trademark of Novo Nordisk A/S. © 2025 Novo Nordisk All rights reserved. US25HRBD00174 June 2025 View original content to download multimedia: SOURCE Novo Nordisk Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
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Mim8 prophylaxis treatment shown to be well-tolerated when switching from emicizumab in people with hemophilia A in new phase 3 data presented at the ISTH 2025 Congress
New FRONTIER5 results show a direct switch to investigational Mim8 (denecimig) prophylaxis treatment from emicizumab, without the need for a washout period, was well-tolerated in adults and adolescents with hemophilia A, with or without inhibitors1 FRONTIER5 Patient-Reported Outcomes assessment found the Mim8 pen-injector easy to use with strong user preference over their emicizumab injection system2 PLAINSBORO, N.J., June 22, 2025 /PRNewswire/ -- Novo Nordisk today presented results from the phase 3b FRONTIER5 trial showing that a direct switch to investigational Mim8 (denecimig) prophylaxis from emicizumab treatment, without a washout period or Mim8 loading dose, was well tolerated in adults and adolescents living with hemophilia A, with or without inhibitors.1 Additionally, a FRONTIER5 Patient-Reported Outcomes (PROs) assessment found the Mim8 pen-injector easy to use with an overall strong user preference for the pen-injector, in comparison to previous injection systems.2 The results were presented at the International Society on Thrombosis and Haemostasis (ISTH) Congress in Washington, D.C. "Continuous prophylactic coverage is critical to avoiding breakthrough bleeds in people living with hemophilia; with new non-factor therapeutic options, many people could have hesitations about switching treatment options. These data demonstrate that switching to Mim8 from emicizumab can be done without requiring a washout period," said Allison P. Wheeler, MD, Washington Center for Bleeding Disorders, Seattle, WA. "This is critical in ensuring that individuals maintain continuous protection against bleeding events as we seek to help address the ongoing needs of people living with this complex disease." In the open-label phase 3 FRONTIER5 safety study, 61 adults and adolescents aged 12 years and older with hemophilia A were enrolled.3 No thromboembolic events, hypersensitivity reactions, or treatment-emergent adverse events (TEAEs) leading to discontinuation were observed, and there was no evidence of neutralizing anti-Mim8 antibodies.1 Additional safety information from FRONTIER5 demonstrate that between Week 0 and Week 26 of treatment, there were 107 TEAEs observed in 43 patients (70.5%), most of which were mild to moderate (88.6%). There were 24 TEAEs that were possibly/probably related to Mim8 reported in 18 patients (29.5%). No thromboembolic events, hypersensitivity reactions, or TEAEs leading to discontinuation were observed.1 The PROs data from FRONTIER5 indicated overall (97%; n=57/59) patients preferred the Mim8 pen injection, with 97% of those patients reporting a "very strong" or "fairly strong" preference in comparison to their previous emicizumab injection system. Of the participants who completed the Hemophilia Device Handling and Preference Assessment (HDHPA) questionnaire at week 26, 98% (n=58/59) found the Mim8 pen-injector "very easy" or "easy" to use, and 95% (n=56/59) found it "much easier" or "easier" compared with their previous administration method. All participants (100%) were "extremely confident" or "very confident" in using the pen-injector correctly.2 "The FRONTIER5 safety and patient-reported outcomes data support Mim8 as a potential future treatment option for people living with hemophilia A and demonstrate our continued commitment to developing innovative treatment options for the hemophilia community," said Stephanie Seremetis, Chief Medical Officer and CVP for Rare Disease at Novo Nordisk. "These results give valuable insights into hemophilia A management, highlight the feasibility of directly switching to Mim8 from emicizumab, and reveal a strong patient preference for the Mim8 pen-injector device." Novo Nordisk aims to submit Mim8 for U.S. and EU regulatory review during 2025. Data from the ongoing phase 3 FRONTIER program will be disclosed at upcoming congresses and in publications in 2025 and 2026. About hemophiliaHemophilia is a rare inherited bleeding disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding.4 It is estimated to affect approximately 1,125,000 people worldwide.5 There are different types of hemophilia, which are characterized by the type of clotting factor protein that is defective or missing.4 Hemophilia A is caused by a missing or defective clotting Factor VIII (FVIII), and hemophilia B is caused by a missing or defective clotting Factor IX.4 Inhibitors are an immune system response to the clotting factors in replacement therapy. Currently, it is estimated that up to 30% of people living with severe hemophilia A have inhibitors that can cause replacement therapies to stop working.6 About Mim8Mim8 is an investigational FVIIIa mimetic bispecific antibody designed with the aim to deliver once-monthly, once-every-two-weeks, or once-weekly prophylaxis for people living with hemophilia A, with or without inhibitors.7,8 Administered under the skin, Mim8 bridges Factor IXa and Factor X. This action replaces FVIII function, which helps restore the body's thrombin generation capacity, helping blood to clot.7,9 The use of Mim8 in people living with hemophilia A is investigational and not approved by regulatory authorities or available anywhere in the world. About the FRONTIER5 trialFRONTIER5 is a single-arm, open-label, 26-week, phase 3b trial evaluating the safety of switching from previous emicizumab prophylaxis treatment directly to Mim8 prophylaxis treatment using the Mim8 pen-injector in adults and adolescents with hemophilia A, with or without inhibitors.1 The FRONTIER clinical program investigates Mim8 as a prophylaxis treatment for people with hemophilia A, with or without inhibitors. The phase 3 program includes FRONTIER1, FRONTIER2, FRONTIER3, FRONTIER4 and FRONTIER5.1,8,10-12 About Novo Nordisk Novo Nordisk is a leading global healthcare company that's been making innovative medicines to help people with diabetes lead longer, healthier lives for more than 100 years. This heritage has given us experience and capabilities that also enable us to drive change to help people defeat other serious chronic diseases such as obesity, rare blood, and endocrine disorders. We remain steadfast in our conviction that the formula for lasting success is to stay focused, think long-term, and do business in a financially, socially, and environmentally responsible way. With a U.S. presence spanning 40 years, Novo Nordisk U.S. is headquartered in New Jersey and employs over 10,000 people throughout the country across 12 manufacturing, R&D, and corporate locations in eight states plus Washington DC. For more information, visit Facebook, Instagram, and X. Contacts for further information: Media: Liz Skrbkova (US)+1 609 917 0632NNIMediaTeam@ James-Brown (Global)+45 3079 9289Globalmedia@ Investors: Frederik Taylor Pitter (US) +1 609 613 0568fptr@ Martin Wiborg Rode (Global)+45 3075 5956jrde@ Meyer (Global) +45 3079 6656 azey@ Schaap Melvold (Global) +45 3077 5649 idmg@ Ung (Global)+45 3077 6414mxun@ References Oldenberg J, Benson G, Chowdaryet P, et al. FRONTIER5 direct switch study: safety of initiating Mim8 prophylaxis without washout of emicizumab. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21-25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13686. Mahlangu J, Ahuja S, Cockrell E, et al. FRONTIER5 device handling and patient-reported outcomes. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21–25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13786. A Research Study Looking at How Safe it is to Switch From Emicizumab to Mim8 in People With Haemophilia A (FRONTIER5). Last accessed May 2025. Available at MedlinePlus. Hemophilia. Last accessed May 2025. Available at Iorio A, Stonebraker JS, Chambost H, et al. Establishing the Prevalence and Prevalence at Birth of Hemophilia in Males: A Meta-analytic Approach Using National Registries. Ann Intern Med. 2019;171:540-546. Kim JY, You CW. The prevalence and risk factors of inhibitor development of FVIII in previously treated patients with hemophilia A. Blood Res. 2019;54:204-209. Ostergaard H, Lund J, Greisen PJ, et al. A factor VIIIa-mimetic bispecific antibody, Mim8, ameliorates bleeding upon severe vascular challenge in hemophilia A mice. Blood. 2021;138:1258-1268. A Research Study Looking at Long-term Treatment With Mim8 in People With Haemophilia A (FRONTIER4). Last accessed May 2025. Available at U.S. National Library of Medicine. F8 gene. MedlinePlus Genetics. Last accessed May 2025. Available at A Research Study Investigating Mim8 in People With Haemophilia A. Last accessed June 2025. Available at A Research Study Investigating Mim8 in Adults and Adolescents With Haemophilia A With or Without Inhibitors. Last accessed May 2025. Available at A Research Study Looking at Mim8 in Children With Haemophilia A With or Without Inhibitors. Last accessed May 2025. Available at Novo Nordisk is a registered trademark of Novo Nordisk A/S. © 2025 Novo Nordisk All rights reserved. US25HRBD00174 June 2025 View original content to download multimedia: SOURCE Novo Nordisk Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
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Novo Nordisk A/S: Mim8 prophylaxis treatment shown to be well-tolerated when switching from emicizumab in people with haemophilia A in new phase 3 data presented at the ISTH 2025 Congress
New FRONTIER5 data show that a direct switch to investigational Mim8 (denecimig) prophylaxis treatment from emicizumab, without the need for a washout period, was well-tolerated with no safety concerns in adults and adolescents with haemophilia A, with or without inhibitors1. Switching to Mim8 led to a sustained increase in thrombin generation into the normal range, but without causing thrombin levels that might pose a thrombotic risk1. FRONTIER5 Patient-Reported Outcomes (PROs) assessment found the Mim8 pen-injector easy to use, with strong user preference over their emicizumab injection system2. These results add to the overall safety profile of Mim8 based on the FRONTIER clinical trial Denmark, 22 June 2025 – Novo Nordisk today presented results from the phase 3b FRONTIER5 trial showing that a direct switch to investigational Mim8 (denecimig) prophylaxis from emicizumab treatment, without a washout period or Mim8 loading dose, was well-tolerated with no safety concerns in adults and adolescents living with haemophilia A, with or without inhibitors1. Additionally, a FRONTIER5 Patient-Reported Outcomes (PROs) assessment found the Mim8 pen-injector easy to use, with an overall strong user preference for the pen-injector compared to the previous emicizumab injection system2,3. The results were presented at the International Society on Thrombosis and Haemostasis (ISTH) Congress in Washington, D.C. In the study, the first Mim8 maintenance dose was administered on the next planned emicizumab dosing day. Patients were given the option of switching to once-monthly, once every two weeks or once-weekly dosing frequencies of Mim8, regardless of their prior dosing frequency1,3. Steady-state Mim8 concentration was achieved by Week 16, and emicizumab elimination was completed by Week 261. Switching to Mim8 led to a sustained increase in thrombin peak levels without an exaggerated thrombin response1. 'Continuous prophylactic coverage is critical to avoiding breakthrough bleeds in people living with haemophilia; with new non-factor therapeutic options, many people could have hesitations about switching treatment options. These data demonstrate that switching to Mim8 from emicizumab can be done without requiring a washout period,' said Allison P. Wheeler, MD, Washington Center for Bleeding Disorders, Seattle, WA. 'This is critical in ensuring that individuals maintain continuous protection against bleeding events as we seek to help address the ongoing needs of people living with this complex disease.' The open-label phase 3b FRONTIER5 study consisted of 61 adults and adolescents, aged 12 years and older, with haemophilia A. Mim8 was well-tolerated with no safety concerns. No thromboembolic events, hypersensitivity reactions, or treatment-emergent adverse events (TEAEs) leading to discontinuation were observed, and there was no clinical evidence of neutralising anti-Mim8 antibodies1. The PROs data from FRONTIER5 indicated a strong overall preference for the Mim8 pen-injector, with 97% (n=57/59) of patients reporting a 'very strong' or 'fairly strong' preference in comparison to their previous emicizumab injection system2. Of the participants who completed the Haemophilia Device Handling and Preference Assessment (HDHPA) questionnaire at week 26, 98% (n=58/59) found the Mim8 pen-injector 'very easy' or 'easy' to use, and 95% (n=56/59) found it 'much easier' or 'easier' compared with their previous administration method. All participants (100%) were 'extremely confident' or 'very confident' in using the pen-injector correctly, and most participants (83%; n=49/59) found it 'very easy' to inject the dose2. 'The FRONTIER5 safety and patient-reported outcomes data support Mim8 as a potential future treatment option for people living with haemophilia A and demonstrate our continued commitment to developing innovative treatment options for this community', said Stephanie Seremetis, chief medical officer and CVP for Haemophilia at Novo Nordisk. 'These results give valuable insights into haemophilia A management, highlight the feasibility of directly switching to Mim8 from emicizumab, and reveal a strong patient preference for the Mim8 pen-injector device.' Novo Nordisk expects to submit Mim8 for regulatory review during 2025. Data from the ongoing phase 3 FRONTIER programme will be disclosed at upcoming congresses and in publications in 2025 and 2026. About haemophiliaHaemophilia is a rare inherited bleeding disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding4. It is estimated to affect approximately 1,125,000 people worldwide5. There are different types of haemophilia, which are characterised by the type of clotting factor protein that is defective or missing4. Haemophilia A is caused by a missing or defective clotting Factor VIII (FVIII), and haemophilia B is caused by a missing or defective clotting Factor IX4. Inhibitors are an immune system response to the clotting factors in replacement therapy. Currently, it is estimated that up to 30% of people living with severe haemophilia A develop inhibitors6 that can cause replacement therapies to stop working. About Mim8 Mim8 is an investigational FVIIIa mimetic bispecific antibody optimised with the aim to deliver improved potency and sustained efficacy across flexible dosing intervals up to once-monthly prophylaxis for people living with haemophilia A, with or without inhibitors7-10. Administered under the skin, Mim8 bridges Factor IXa and Factor X. This action replaces FVIII function, which helps restore the body's thrombin generation capacity into the normal range, helping blood to clot7,11. The use of Mim8 in people living with haemophilia A is investigational and not approved by regulatory authorities or available anywhere in the world. About the FRONTIER5 trialFRONTIER5 is a single-arm, open-label, 26-week, phase 3b trial evaluating the safety of switching from previous emicizumab prophylaxis treatment directly to Mim8 prophylaxis treatment using the Mim8 pen-injector in adults and adolescents with haemophilia A, with or without inhibitors3. The FRONTIER clinical programme investigates Mim8 as a prophylaxis treatment for people with haemophilia A, with or without inhibitors. This programme includes FRONTIER1, FRONTIER2, FRONTIER3, FRONTIER4 and FRONTIER53,12-15. About Novo Nordisk Novo Nordisk is a leading global healthcare company founded in 1923 and headquartered in Denmark. Our purpose is to drive change to defeat serious chronic diseases built upon our heritage in diabetes. We do so by pioneering scientific breakthroughs, expanding access to our medicines, and working to prevent and ultimately cure disease. Novo Nordisk employs about 77,400 people in 80 countries and markets its products in around 170 countries. For more information, visit Facebook, Instagram, X, LinkedIn and YouTube. Contacts for further information Media: Ambre James-Brown +45 3079 9289abmo@ Liz Skrbkova (US)+1 609 917 0632lzsk@ Investors: Jacob Martin Wiborg Rode+45 3075 5956jrde@ Ida Schaap Melvold +45 3077 5649idmg@ Sina Meyer +45 3079 6656azey@ Max Ung+45 3077 6414 mxun@ Frederik Taylor Pitter +1 609 613 0568fptr@ _______________________ References Oldenberg J, Benson G, Chowdaryet P, et al. FRONTIER5 direct switch study: Safety of initiating Mim8 prophylaxis without washout of emicizumab. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21-25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13686. Mahlangu J, Ahuja S, Cockrell E, et al. FRONTIER5 device handling and patient-reported outcomes. Oral presentation presented at the Congress of the International Society on Thrombosis and Haemostasis 2025; June 21–25 2025; Walter E. Washington Convention Center, Washington D.C., US. Session code 13786. A Research Study Looking at How Safe it is to Switch From Emicizumab to Mim8 in People With Haemophilia A (FRONTIER5). Available at: Last accessed: June 2025. MedlinePlus. Hemophilia. Available at: Last accessed: June 2025. Iorio A, Stonebraker JS, Chambost H, et al. Establishing the Prevalence and Prevalence at Birth of Hemophilia in Males: A Meta-analytic Approach Using National Registries. Ann Intern Med. 2019;171:540–546. doi: 10.7326/M19-1208. Kim JY, You CW. The prevalence and risk factors of inhibitor development of FVIII in previously treated patients with hemophilia A. Blood Res. 2019;54:204-209. doi: 10.5045/br.2019.54.3.204. Ostergaard H, Lund J, Greisen PJ, et al. A factor VIIIa-mimetic bispecific antibody, Mim8, ameliorates bleeding upon severe vascular challenge in hemophilia A mice. Blood. 2021;138:1258-1268. doi: 10.1182/blood.2020010331. Mancuso EM, et al. Efficacy and safety of Mim8 prophylaxis in adults and adolescents with hemophilia A with or without inhibitors: Phase 3, open-label, randomized, controlled FRONTIER2 study. Abstract presented at the International Society on Thrombosis and Haemostasis (ISTH) 2024 Congress. Kenet G, et al. Patient- and caregiver-reported outcomes with subcutaneous Mim8 prophylaxis in paediatric patients with haemophilia A with or without factor VIII inhibitors: phase 3 FRONTIER3 study. Abstract presented at the European Association for Haemophilia and Allied Disorders (EAHAD) 2025 Annual Congress. Session 6. Chowdary P, Banchev AM, Kavakli K, et al. Safety and Efficacy of Mim8 Prophylaxis Administered Once Every Two Weeks for Patients with Hemophilia A with or without Inhibitors: Interim Analysis of the FRONTIER4 Open-Label Extension Study. Abstract presented at the American Society of Hematology (ASH) 2024 Annual Congress. Session: 322. U.S. National Library of Medicine. F8 gene. MedlinePlus Genetics. Available at Last accessed: June 2025. A Research Study Investigating Mim8 in People With Haemophilia A (FRONTIER1). Available at: Last accessed: June 2025. A Research Study Investigating Mim8 in Adults and Adolescents With Haemophilia A With or Without Inhibitors. Available at: Last accessed: June 2025. A Research Study Looking at Mim8 in Children With Haemophilia A With or Without Inhibitors. Available at: Last accessed: June 2025. A Research Study Looking at Long-term Treatment With Mim8 in People With Haemophilia A (FRONTIER4). Available at: Last accessed: June 2025. 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Novo Nordisk to present phase 3 trials across hemophilia portfolio, reinforcing commitment to research in rare blood disorders, at ISTH 2025
Key presentations include two updates from a phase 3 trial evaluating investigational treatment with Mim8 (denecimig) and five assessing treatment outcomes with concizumab in hemophilia A phase 3 trial analysis from FRONTIER5 will evaluate the safety of switching directly from emicizumab to Mim8 (denecimig) in people living with hemophilia A/B Findings from explorer7 and explorer8 phase 3 trials will assess data including non-joint bleeds, annualized bleeding rates and additional studies including thrombin generation with concizumab in hemophilia A/B PLAINSBORO, N.J., June 6, 2025 /PRNewswire/ -- Novo Nordisk today announced that new hemophilia data will be presented at the upcoming International Society on Thrombosis and Haemostasis (ISTH) Congress, June 21-25. Key data presentations across both hemophilia A and B (HA and HB), with and without inhibitors, will share insights on clotting, thrombin generation, bleeding episodes and medication impact, patient administration preferences, physician treatment satisfaction, and global real-world diagnosis and treatment data for joint bleeds. "At Novo Nordisk, we believe understanding the whole person and their journey is essential to addressing the unmet needs in people with hemophilia. Our research is rooted in a deep understanding of the hemophilia community, aiming to drive critical advancements across rare blood disorders in order to help address these unmet needs," said Stephanie Seremetis, Chief Medical Officer and CVP for Rare Disease at Novo Nordisk. "Through this latest research, we are honored to build on our long-standing legacy in rare blood disorders to support patients who face the challenges of this complex condition." New phase 3 data will be presented on Mim8, an investigational mimetic therapy designed to replicate the function of missing clotting factors.1 Analysis from the phase 3 FRONTIER5 trial will assess the safety and preferences of people with HA, with and without inhibitors, who switch from emicizumab to Mim8. In addition, new data from two prospective, multicenter, open label, phase 3 trials (explorer7 and explorer8) will investigate joint bleeds, non-joint bleeds, and annualized bleeding rate with preventive concizumab being investigated versus on-demand treatment across both HA and HB, with and without inhibitors. Summary of presentationsAccepted data at the 33rd ISTH Congress includes the following poster and oral presentations. Additional information can be found on the ISTH website. Full details of Novo Nordisk abstracts to be presented: Abstract title Abstract presentationdetails Hemophilia Investigational Mim8 FRONTIER5 direct switch study: Safety of initiating Mim8 prophylaxis without washout of emicizumab Oral presentation June 22 2:45-4:00 pm EST OC 20.4 Evaluating pen-injector handling and PROs in patients switching from emicizumab to Mim8 in FRONTIER5 Poster presentation June 23 1:45-2:45 pm EST PB0812 Mim8 enhances procoagulant activity of select hemophilia B-causing Factor IX variants (research collaboration) Oral presentation June 21 1:00-1:15 pm EST OC 03.1 Concizumab Non-joint bleeds in patients with hemophilia A or B with inhibitors: Concizumab explorer7 study Poster presentation June 23 1:45-2:45 pm EST PB0851 Annualized bleeding rates in hemophilia A/B and target joints: Concizumab explorer8 study Oral presentation June 24 2:45-4:00 pm EST OC 59.2 The effect of concizumab on thrombin generation in FVII deficient plasma Poster presentation June 24 1:45-2:45 pm EST PB1478 ISS study: TFPI slows prothombinase assembly when concizumab is bound to its second Kunitz domain Poster presentation June 24 1:45-2:45 pm EST PB1358 Taiwan study: Real-world efficacy of concizumab prophylaxis in a patient with hemophilia B and inhibitors Poster presentation June 23 1:45-2:45 pm EST PB0869 Pre-clinical data & general hemophilia In vitro activity of Inno8 in global hemostatic assays alone and with other hemostatic agents Oral presentation June 23 2:45-4:00 pm EST OC 39.5 Genomic integration of FVIII transgene in hepatocytes restores durable FVIII activity in vivo Oral presentation June 24 9:30-10:45 am EST OC 51.2 US physician-reported prophylactic treatment satisfaction and joint health of people with hemophilia Poster presentation June 24 1:45-2:45 pm EST PB1485 Joint bleed diagnosis and treatment delays in people with hemophilia: Global real-world data Poster presentation June 24 1:45-2:45 pm EST PB1423 About hemophiliaHemophilia is a rare inherited bleeding disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding.2 It is estimated to affect approximately 1,125,000 people worldwide.3 There are different types of hemophilia, which are characterized by the type of clotting factor protein that is defective or missing. Hemophilia A is caused by a missing or defective clotting Factor VIII (FVIII), and hemophilia B is caused by a missing or defective clotting Factor IX (FIX).2 Hemophilia is often treated by replacing the missing clotting factor via intravenous infusions, also known as replacement therapy. However, sometimes the body can produce inhibitors as an immune response to the clotting factor replacement therapy. When this happens, the therapy may not work and can limit treatment options.5 About Novo NordiskNovo Nordisk is a leading global healthcare company that's been making innovative medicines to help people with diabetes lead longer, healthier lives for more than 100 years. This heritage has given us experience and capabilities that also enable us to drive change to help people defeat other serious chronic diseases such as obesity, rare blood, and endocrine disorders. We remain steadfast in our conviction that the formula for lasting success is to stay focused, think long-term, and do business in a financially, socially, and environmentally responsible way. With a U.S. presence spanning 40 years, Novo Nordisk U.S. is headquartered in New Jersey and employs over 10,000 people throughout the country across 12 manufacturing, R&D, and corporate locations in eight states plus Washington DC. For more information, visit Facebook, Instagram, and X. Contacts for further information Media:Liz Skrbkova (US)+1 609 917 0632USMediaRelations@ Ambre James-Brown (Global)+45 3079 9289Globalmedia@ Investors:Frederik Taylor Pitter (US)+1 609 613 0568fptr@ Jacob Martin Wiborg Rode (Global)+45 3075 5956jrde@ Sina Meyer (Global)+45 3079 6656 azey@ Ida Schaap Melvold (Global)+45 3077 5649 idmg@ Max Ung (Global)+45 3077 6414mxun@ References Østergaard H, Lund J, Greisen PJ, et al. A factor VIIIa-mimetic bispecific antibody, Mim8, ameliorates bleeding upon severe vascular challenge in hemophilia A mice. Blood. 2021;138(14):1258-1268. MedlinePlus. Hemophilia. Accessed May 2025. Available at Iorio A, Stonebraker JS, Chambost H, et al.; Data and demographics committee of the World Federation of Hemophilia. Establishing the prevalence and prevalence at birth of hemophilia in males: a meta-analytic approach using national registries. Ann Intern Med. 2019;171(8):540–546. Centers for Disease Control and Prevention (CDC). Treatment of hemophilia. Accessed May 2025. Available at Srivastava A, Santagostino E, Dougall A, et al. WFH Guidelines for the Management of Hemophilia, 3rd edition. Haemophilia. 2020;26 Suppl 6:1-158. Novo Nordisk is a registered trademark of Novo Nordisk A/S. © 2025 Novo Nordisk All rights reserved. US25NNG00026 June 2025 View original content to download multimedia: SOURCE Novo Nordisk Sign in to access your portfolio
