Summary of Travere Therapeutics (TVTX) FY Conference Call - August 13, 2025 Company Overview - **Company**: Travere Therapeutics - **Focus**: Development of therapies for rare diseases, particularly in rare nephrology and rare metabolics [3][4] Core Products - **Filspari**: - Approved for IgA nephropathy and in development for FSGS (Focal Segmental Glomerulosclerosis) - Unique as the only dual endothelin angiotensin receptor antagonist approved for these conditions [3][4] - **Pegtobatinib**: - Enzyme replacement therapy for classical homocystinuria (HCU) - Phase III study expected to begin enrollment next year [4][56] Commercial Performance - **Filspari Commercial Uptake**: - Accelerated approval received in February 2023, with a focus on becoming foundational care for IgA nephropathy [5][6] - Initial uptake was consistent with expectations, outperforming benchmark launches in the renal space [6] - Demand increased from approximately 500 patient start forms (PSFs) to around 700 PSFs following full approval in September [7][8] - 96% payer coverage achieved, with improvements in reimbursement timelines from 20-60 days to the lower end of that range [11][12] Regulatory Updates - **Supplemental NDA (sNDA)**: - Filed to modify Risk Evaluation and Mitigation Strategy (REMS) to remove embryo-fetal toxicity monitoring and adjust liver monitoring requirements [13][14] - Expectation for approval by PDUFA date of August 28 [17] Market Dynamics - **IgA Nephropathy Landscape**: - Recent approvals in the space (e.g., Tepalta, Venrafia) have not negatively impacted Filspari's market approach [23][24] - Over 70,000 addressable patients in the IgA nephropathy market, with KDIGO guidelines emphasizing ambitious treatment goals [25][26] - Filspari's unique position as the only non-immunosuppressive therapy approved for all patients at risk of progression [31] FSGS Market Potential - **FSGS Market Size**: - Potential to be larger than IgA nephropathy, with approximately half the patient population [47] - Nephrologists are more aware of the need for early treatment in FSGS, leading to a motivated patient and physician group [48] - Anticipated strong uptake due to existing experience with Filspari among nephrologists [49] Sales Strategy - **Sales Force Expansion**: - Incremental increase in sales force to maintain market share in IgA nephropathy and target pediatric nephrologists for FSGS [51][55] - Over 80% overlap in physicians treating both IgA nephropathy and FSGS patients [54] Future Outlook - **PDUFA Date for FSGS**: January 2026, with expectations for a strong narrative based on clinical data and alignment with recent Parasol workshop findings [35][42] - **Pegtobatinib**: Anticipated enrollment in Phase III study for HCU, targeting a patient population of 7,000-10,000 in the US [56] Conclusion - Travere Therapeutics is positioned for significant growth with Filspari and pegtobatinib, leveraging strong clinical data and market dynamics to enhance patient care in rare diseases [57][58]