Late-breaking oral presentation details partial and complete proteinuria remission data from the DUPLEX Study of FILSPARI in FSGS
Data presentations highlight SPARTAN Study results and real-world case studies of FILSPARI across different IgAN patient backgrounds
SAN DIEGO, March 31, 2025--(BUSINESS WIRE)--Travere Therapeutics, Inc., (Nasdaq: TVTX) today announced that the Company will present three abstracts, including one late-breaking oral presentation, at the upcoming National Kidney Foundation (NKF) Spring Clinical Meetings 2025, taking place April 10-13 in Boston, MA.
The late-breaking oral presentation will feature new analyses from the Phase 3 DUPLEX Study of FILSPARI® (sparsentan) in focal segmental glomerulosclerosis (FSGS), showing that partial and complete proteinuria remission were achieved earlier and more frequently with FILSPARI than irbesartan, and patients that achieved proteinuria remission had low rates of kidney failure.
The Company will also present data that further explore the role of FILSPARI as a foundational therapy in IgA nephropathy (IgAN). Data from the Phase 2 SPARTAN Study of FILSPARI as first-line treatment in newly diagnosed patients with IgAN demonstrated rapid and sustained reductions in proteinuria, and reductions in sCD163 levels, an inflammatory biomarker associated with kidney injury. Additionally, a presentation of real-world case studies will show FILSPARI’s effectiveness across different IgAN patient backgrounds, including those with high proteinuria and prior treatments.
"We look forward to presenting data exploring FILSPARI’s potential in FSGS where treatment options remain severely limited, as well as data that reinforce the medicine’s clinical benefits in IgAN," said Jula Inrig, M.D., chief medical officer of Travere Therapeutics. "We remain committed to advancing research that supports improved outcomes for people living with rare kidney disease."
Late-Breaking Oral Presentation
Patients in DUPLEX Achieved Partial or Complete Remission of Proteinuria Earlier and More Often with Sparsentan vs Irbesartan: Implications for Slowing Progression to Kidney Failure in FSGS
Poster: LB-07
Session: Late-Breaking Abstract Session
Date: Thursday, April 10, 2025, 2:30-3:00 p.m. ET
Location: Convention Center Room 312
Poster Presentations
Sparsentan as a First-Line Treatment of Incident Patients with IgA Nephropathy (IgAN): Interim Analysis of the SPARTAN Trial
Poster: G-452
Date: April 10, 2025, 5:15 - 7:30 p.m. ET
Location: Exhibit Hall
Improving Proteinuria With Sparsentan in Patients with IgA Nephropathy: A Case Series
Poster: G-107
Date: April 10, 2025, 5:15 - 7:30 p.m. ET
Location: Exhibit Hall
About Focal Segmental Glomerulosclerosis
Focal segmental glomerulosclerosis (FSGS) is a rare proteinuric kidney disorder in both children and adults that is estimated to affect more than 40,000 patients in the U.S. with similar prevalence in Europe. The disorder is defined by progressive scarring of the kidney and often leads to kidney failure. FSGS is characterized by proteinuria, where protein leaks into the urine due to a breakdown of the normal filtration mechanism in the kidney. Once in the urine, protein is considered to be toxic to other parts of the kidney, especially the tubules, and is believed to contribute to further disease progression. Other common symptoms include swelling in parts of the body, known as edema, as well as low blood albumin levels, abnormal lipid profiles and hypertension. There is currently no approved pharmacologic indicated for the treatment of FSGS.
About IgA Nephropathy
IgA nephropathy (IgAN), also called Berger's disease, is a rare progressive kidney disease characterized by the buildup of immunoglobulin A (IgA), a protein that helps the body fight infections, in the kidneys. The deposits of IgA cause a breakdown of the normal filtering mechanisms in the kidney, leading to blood in the urine (hematuria), protein in the urine (proteinuria) and a progressive loss of kidney function. Other symptoms of IgAN may include swelling (edema) and high blood pressure.
IgAN is the most common type of primary glomerulonephritis worldwide and a leading cause of kidney failure due to glomerular disease. IgAN is estimated to affect up to 150,000 people in the U.S. and is one of the most common glomerular diseases in Europe and Japan.
About Travere Therapeutics
At Travere Therapeutics, we are in rare for life. We are a biopharmaceutical company that comes together every day to help patients, families and caregivers of all backgrounds as they navigate life with a rare disease. On this path, we know the need for treatment options is urgent – that is why our global team works with the rare disease community to identify, develop and deliver life-changing therapies. In pursuit of this mission, we continuously seek to understand the diverse perspectives of rare patients and to courageously forge new paths to make a difference in their lives and provide hope – today and tomorrow. For more information, visit travere.com
FILSPARI® (sparsentan) U.S. Indication
FILSPARI (sparsentan) is indicated to slow kidney function decline in adults with primary immunoglobulin A nephropathy (IgAN) who are at risk for disease progression.
IMPORTANT SAFETY INFORMATION
BOXED WARNING: HEPATOTOXICITY AND EMBRYO-FETAL TOXICITY
Because of the risks of hepatotoxicity and birth defects, FILSPARI is available only through a restricted program called the FILSPARI REMS. Under the FILSPARI REMS, prescribers, patients and pharmacies must enroll in the program.
Hepatotoxicity
Some Endothelin Receptor Antagonists (ERAs) have caused elevations of aminotransferases, hepatotoxicity, and liver failure. In clinical studies, elevations in aminotransferases (ALT or AST) of at least 3-times the Upper Limit of Normal (ULN) have been observed in up to 3.5% of FILSPARI-treated patients, including cases confirmed with rechallenge.
Measure transaminases and bilirubin before initiating treatment and monthly for the first 12 months, and then every 3 months during treatment. Interrupt treatment and closely monitor patients who develop aminotransferase elevations more than 3x ULN.
FILSPARI should generally be avoided in patients with elevated aminotransferases (>3x ULN) at baseline because monitoring for hepatotoxicity may be more difficult and these patients may be at increased risk for serious hepatotoxicity.
Embryo-Fetal Toxicity
FILSPARI can cause major birth defects if used by pregnant patients based on animal data. Therefore, pregnancy testing is required before the initiation of treatment, during treatment and one month after discontinuation of treatment with FILSPARI. Patients who can become pregnant must use effective contraception before the initiation of treatment, during treatment, and for one month after discontinuation of treatment with FILSPARI.
Contraindications
FILSPARI is contraindicated in patients who are pregnant. Do not coadminister FILSPARI with angiotensin receptor blockers (ARBs), ERAs, or aliskiren.
Warnings and Precautions
Most common adverse reactions
The most common adverse reactions (≥5%) are hyperkalemia, hypotension (including orthostatic hypotension), peripheral edema, dizziness, anemia, and acute kidney injury.
Drug interactions
Please see the full Prescribing Information, including BOXED WARNING, for additional Important Safety Information.
Forward Looking Statements
This press release contains "forward-looking statements" as that term is defined in the Private Securities Litigation Reform Act of 1995. Without limiting the foregoing, these statements are often identified by the words "on-track," "positioned," "look forward to," "will," "would," "may," "might," "believes," "anticipates," "plans," "expects," "intends," "potential," or similar expressions. In addition, expressions of strategies, intentions or plans are also forward-looking statements. Such forward-looking statements include, but are not limited to, references to: statements relating to the clinical studies described herein; references to FILSPARI as a foundational therapy in IgAN; statements regarding effectiveness across different IgAN patient backgrounds; statements regarding FILSPARI’s potential in FSGS; and references to estimated sizes of patient populations. Such forward-looking statements are based on current expectations and involve inherent risks and uncertainties, including factors that could delay, divert or change any of them, and could cause actual outcomes and results to differ materially from current expectations. No forward-looking statement can be guaranteed. Among the factors that could cause actual results to differ materially from those indicated in the forward-looking statements are risks and uncertainties related to the Company’s sNDA for FILSPARI in FSGS, including the timing and outcome thereof. There is no guarantee that the FDA will accept the sNDA for filing, grant priority review of the sNDA or grant approval of FILSPARI for FSGS on the anticipated timeline, or at all. The Company also faces risks and uncertainties related to its business and finances in general, the success of its commercial products, risks and uncertainties associated with its preclinical and clinical stage pipeline, risks and uncertainties associated with the regulatory review and approval process, risks and uncertainties associated with enrollment of clinical trials for rare diseases, and risks that ongoing or planned clinical trials may not succeed or may be delayed for safety, regulatory or other reasons. Specifically, the Company faces risks associated with the ongoing commercial launch of FILSPARI in IgAN, the timing and potential outcome of its and its partners’ clinical studies, market acceptance of its commercial products including efficacy, safety, price, reimbursement, and benefit over competing therapies, risks related to the challenges of manufacturing scale-up, risks associated with the successful development and execution of commercial strategies for such products, including FILSPARI, and risks and uncertainties related to the new administration and matters related to the funding and staffing of government agencies including the FDA. The Company also faces the risk that it will be unable to raise additional funding that may be required to complete development of any or all of its product candidates, including as a result of macroeconomic conditions; risks relating to the Company’s dependence on contractors for clinical drug supply and commercial manufacturing; uncertainties relating to patent protection and exclusivity periods and intellectual property rights of third parties; risks associated with regulatory interactions; and risks and uncertainties relating to competitive products, including current and potential future generic competition with certain of the Company’s products, and technological changes that may limit demand for the Company’s products. The Company also faces additional risks associated with global and macroeconomic conditions, including health epidemics and pandemics, including risks related to potential disruptions to clinical trials, commercialization activity, supply chain, and manufacturing operations. You are cautioned not to place undue reliance on these forward-looking statements as there are important factors that could cause actual results to differ materially from those in forward-looking statements, many of which are beyond our control. The Company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events, or otherwise. Investors are referred to the full discussion of risks and uncertainties, including under the heading "Risk Factors", as included in the Company’s most recent Form 10-K, Form 10-Q and other filings with the Securities and Exchange Commission.
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Contacts
Media:
888-969-7879
mediarelations@travere.com
Investors:
888-969-7879
IR@travere.com
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