- C3 glomerulopathy (C3G) is a rare renal disease, affecting young patients with a poor prognosis and significant unmet need.1–3
- Iptacopan (LNP023) is a potential first-in-class, oral, potent and selective factor B inhibitor of the complement system’s alternative pathway, targeting the underlying cause of C3G.4–6
- Data presented at the American Society of Nephrology (ASN) 2020 Annual Meeting shows that investigational iptacopan effectively and safely reduced proteinuria in patients with C3G7.
- Iptacopan is in parallel development for a number of renal conditions, including C3 glomerulopathy (C3G), IgA nephropathy (IgAN), atypical hemolytic uremic syndrome (aHUS), and membranous nephropathy (iMN) as well as in paroxysmal nocturnal hemoglobinuria (PNH), a hematological disease. Positive Phase II results in PNH were presented at EBMT in August8.
- The European Medicines Agency has granted iptacopan a priority medicines (PRIME) designation in C3G and an orphan drug designation in IgA nephropathy (IgAN).
Basel, October 26, 2020 — Novartis today announced positive Phase II interim analysis results for iptacopan (LNP023), an investigational oral treatment for C3 glomerulopathy (C3G), presented at the virtually held American Society of Nephrology (ASN) 2020 Annual Meeting.
Data from the open-label Phase II study (NCT03832114), showed that after 12 weeks, iptacopan significantly reduced proteinuria by 49% compared to baseline values, as measured by 24-hour urine protein/creatinine ratio (UPCR) assessment, in twelve patients with C3G (P=0.0005). Iptacopan strongly inhibited alternative complement pathway activity and improved plasma C3 levels. In addition, iptacopan stabilized renal function as assessed by eGFR (estimated glomerular filtration rate) at week 12 and this effect was maintained in the seven patients that were treated for a total of six months after rolling over into the long-term extension study (NCT03955445)7.
“Proteinuria indicates the presence of inflammation in the kidney. Results from this study demonstrate that iptacopan significantly reduces proteinuria in patients with C3G,” said the lead study investigator, Dr Edwin Wong, Consultant Nephrologist at the National Renal Complement Therapeutics Centre, Newcastle upon Tyne NHS Foundation Trust, Newcastle University. “This data also highlights iptacopan’s ability to strongly and specifically inhibit the alternative complement pathway, targeting the underlying cause of this disease and potentially providing a much needed treatment option for C3G patients who have significant unmet needs.”
Iptacopan also had a favorable safety and tolerability profile in this Phase II study with no deaths, no serious adverse events suspected to be related to iptacopan and no adverse events leading to treatment discontinuation.
“Iptacopan is the most advanced asset in our nephrology pipeline.” said John Tsai, Head Global Drug Development and Chief Medical Officer at Novartis. “These data demonstrate that it has the potential to improve the lives of patients with C3G.”
The European Medicines Agency (EMA) has granted PRIME designation for iptacopan in C3G. PRIME is a program launched by the EMA to enhance support for the development of medicines that target an unmet medical need. This voluntary program is based on enhanced interaction and early dialogue with developers of promising medicines, to optimize development plans and speed up evaluation so these medicines can reach patients earlier. In addition, EMA has also granted an orphan drug designation for iptacopan in IgA nephropathy (IgAN).
About C3 glomerulopathy (C3G)
C3G is an ultra-rare and severe form of primary glomerulonephritis, characterized by complement dysregulation.1,9 It has a worldwide annual incidence of 1–2 per million11 and an approximate prevalence of 10,000 in the US, ~10,500 in Europe, 3,200 in Japan and 32,000 in China12.
C3G is commonly diagnosed in adolescents and young adults. The disease has a poor prognosis; about 50% of patient progress to end-stage renal disease (ESRD) within 10 years, and 50–70% experience disease recurrence post kidney transplant.2
Currently, there are no approved therapies specifically designed to target the underlying complement dysregulation that occurs in people with C3G. Current standard of care is with non-specific immunosuppressants with limited clinical evidence. Although antihypertensive or immunosuppressive agents and terminal complement pathway blockers are helpful in some patients, no treatment is universally effective or curative. 2,3,9,10 Therefore, novel treatment options are needed to address disease symptoms and slow the progression of C3G.
About iptacopan
Iptacopan (LNP023) is a first-in-class oral, small-molecule, reversible inhibitor of factor B, a key serine protease of the alternative pathway of the complement cascade.4,5
In addition to C3G, iptacopan is in parallel development for a number of other renal conditions with complement system involvement where significant unmet needs exist, including IgA nephropathy, atypical hemolytic uremic syndrome and membranous nephropathy.
Novartis is also investigating iptacopan in paroxysmal nocturnal hemoglobinuria (PNH). Following positive Phase II data presented at the European Society for Blood and Marrow Transplantation (EBMT) congress in August, a randomized, active-comparator controlled open-label Phase III trial (NCT04558918) to evaluate the efficacy and safety of iptacopan in PNH patients with residual anemia despite treatment with anti-C5 antibody therapy is planned to start in Dec 2020.13
Iptacopan has the potential to become the first alternative complement pathway inhibitor to slow disease progression in a number of complement driven diseases.
About the Study
The study (NCT03832114) is a Phase II, open-label, two cohort, non-randomized study evaluating the efficacy, safety and pharmacokinetics of iptacopan in patients with C3 glomerulopathy (C3G) (Cohort A) and patients who have undergone kidney transplant and have C3G recurrence (Cohort B).14 On completion of the study, patients can roll over into a long-term extension study (NCT03955445).
Disclaimer
This press release contains forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements can generally be identified by words such as “potential,” “can,” “will,” “plan,” “may,” “could,” “would,” “expect,” “anticipate,” “seek,” “look forward,” “believe,” “committed,” “investigational,” “pipeline,” “launch,” or similar terms, or by express or implied discussions regarding potential marketing approvals, new indications or labeling for the investigational or approved products described in this press release, or regarding potential future revenues from such products. You should not place undue reliance on these statements. Such forward-looking statements are based on our current beliefs and expectations regarding future events, and are subject to significant known and unknown risks and uncertainties. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those set forth in the forward-looking statements. There can be no guarantee that the investigational or approved products described in this press release will be submitted or approved for sale or for any additional indications or labeling in any market, or at any particular time. Nor can there be any guarantee that such products will be commercially successful in the future. In particular, our expectations regarding such products could be affected by, among other things, the uncertainties inherent in research and development, including clinical trial results and additional analysis of existing clinical data; regulatory actions or delays or government regulation generally; global trends toward health care cost containment, including government, payor and general public pricing and reimbursement pressures and requirements for increased pricing transparency; our ability to obtain or maintain proprietary intellectual property protection; the particular prescribing preferences of physicians and patients; general political, economic and business conditions, including the effects of and efforts to mitigate pandemic diseases such as COVID-19; safety, quality, data integrity or manufacturing issues; potential or actual data security and data privacy breaches, or disruptions of our information technology systems, and other risks and factors referred to in Novartis AG’s current Form 20-F on file with the US Securities and Exchange Commission. Novartis is providing the information in this press release as of this date and does not undertake any obligation to update any forward-looking statements contained in this press release as a result of new information, future events or otherwise.
About Novartis
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References
| 1. | Martín B and Smith R. C3 Glomerulopathy. [Last Update: April 5, 2018]. Available at: https://www.ncbi.nlm.nih.gov/books/NBK1425. Accessed September 2020. |
| 2. | Nester CM and Smith RJ. Treatment options for C3 glomerulopathy. Curr Opin Nephrol Hypertens. 2013;22(2):231–237. |
| 3. | Goodship TH, et al. Atypical hemolytic uremic syndrome and C3 glomerulopathy: conclusions from a "Kidney Disease: Improving Global Outcomes" (KDIGO) Controversies Conference. Kidney Int. 2017;91(3):539–551. |
| 4. | Merle NS, et al. Complement System Part II: Role in Immunity. Front Immunol. 2015;6:257. |
| 5. | Schubart A, et al. Small-molecule factor B inhibitor for the treatment of complement-mediated diseases. Proc Natl Acad Sci U S A. 2019;116(16):7926–7931. |
| 6. | Harris, C. L. Expanding horizons in complement drug discovery: challenges and emerging strategies. Semin Immunopathol. 2018;40(1):125–140. |
| 7. | Wong, E et al. LNP023, a novel, oral complement alternative pathway Factor B inhibitor, safely and effectively reduces proteinuria in C3 glomerulopathy. To be presented at the American Society of Nephrology Annual Meeting |
| 8. | Novartis. Novartis announces positive results from Phase II study of LNP023 in patients with paroxysmal nocturnal hemoglobinuria (PNH). Available at: https://www.novartis.com/news/media-releases/novartis-announces-positive-results-from-phase-ii-study-lnp023-patients-paroxysmal-nocturnal-hemoglobinuria-pnh. Accessed September 2020. |
| 9. | Smith RJH, et al. C3 glomerulopathy - understanding a rare complement-driven renal disease. Nat Rev Nephrol. 2019;15(3):129–143. |
| 10. | Mastellos DC, et al. Expanding Complement Therapeutics for the Treatment of Paroxysmal Nocturnal Hemoglobinuria. Semin Hematol. 2018;55(3):167–175. |
| 11. | Medjeral-Thomas NR, et al. C3 glomerulopathy: clinicopathologic features and predictors of outcome. Clin J Am Soc Nephrol. 2014;9(1):46–53. |
| 12. | DRG Epidemiology Report, August 2019. |
| 13. | Novartis Data on File |
| 14. | ClinicalTrials.gov. Study on Efficacy and Safety of LNP023 in C3 Glomerulopathy Patients Transplanted and Not Transplanted. Available at: https://clinicaltrials.gov/ct2/show/NCT03832114. Accessed September 2020. |
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