Financial Data and Key Metrics Changes - Total revenues increased to $57.6 million in Q4 2025 from $46.5 million in Q4 2024, and for the full year, revenues rose to $236.2 million from $160.2 million in 2024, driven by Vafseo and Auryxia sales [22][25] - Vafseo net product revenues were $6.2 million in Q4 2025 and $45.8 million for the full year, while Auryxia revenues were $48.1 million in Q4 2025 and $181.5 million for the full year [22][25] - Net loss decreased to $12.2 million in Q4 2025 from $22.8 million in Q4 2024, and for the year, net loss was $5.3 million compared to $69.4 million in 2024 [25] Business Line Data and Key Metrics Changes - Vafseo faced challenges in demand growth during the second half of 2025, with a slight decrease in Q4 demand compared to Q3, attributed to a transition to an observed dosing protocol [5][16] - Auryxia sales increased, but the company anticipates a decrease in Auryxia revenues in 2026 due to expected generic competition [23] Market Data and Key Metrics Changes - Over 1,000 prescribers at 24 dialysis organizations have written prescriptions for Vafseo, with 290,000 patients having access to it in dialysis clinics [6][17] - The company noted a significant increase in prescriber access and improved adherence rates among patients on observed dosing regimens [18][19] Company Strategy and Development Direction - The strategy includes making Vafseo the standard of care in a $1 billion U.S. market, supported by ongoing clinical data generation [6][10] - The company is expanding its pipeline with rare kidney disease treatments, including praliciguat and AKB-097, which are expected to be significant value drivers [11][12] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the growth of Vafseo, despite previous challenges, and emphasized the importance of clinical data in influencing physician adoption [33][40] - The company plans to host an R&D day to discuss mid-stage assets and the potential of its pipeline [70][71] Other Important Information - Cash and cash equivalents as of December 31, 2025, were $184.8 million, compared to $51.9 million at the end of 2024, indicating a solid financial position [26] Q&A Session Summary Question: Expectations for sequential Vafseo growth in 2026 - Management did not provide specific revenue guidance but indicated that demand has been flat and they expect growth from current levels [29][33] Question: Importance of VOICE study data for uptake - Management highlighted that published data will significantly influence physician utilization and adoption of Vafseo [32][33] Question: Current operationalization of Vafseo access at DaVita - DaVita has made Vafseo widely available and is focusing on educating physicians, particularly in the home dialysis population [34][38] Question: Trends in second and third refill rates - First refill adherence improved significantly, and management noted ongoing positive trends in adherence rates [45] Question: Differentiation of AKB-9090 from prior HIFs - AKB-9090 has a different pharmacokinetic profile, allowing for broader tissue penetration compared to vadadustat [51] Question: Expectations for R&D day on April 2 - The company plans to provide detailed insights into its pipeline, focusing on praliciguat and AKB-097, and will include external experts to discuss the potential of these products [70][71]

Financial Data and Key Metrics Changes - Total revenues increased to $57.3 million in Q1 2025 from $32.6 million in Q1 2024, primarily driven by net product revenues which rose to $55.8 million from $31 million [22][25] - Net income for Q1 2025 was $6.1 million compared to a net loss of $18 million in Q1 2024, reflecting strong revenue growth [25][26] - Cost of goods sold decreased to $7.6 million in Q1 2025 from $11.6 million in Q1 2024, attributed to the full amortization of a non-cash charge related to Auryxia [23][24] Business Line Data and Key Metrics Changes - Vafcio generated $12 million in net product revenues in Q1 2025, exceeding guidance of $10 million to $11 million [6][22] - Auryxia net product revenues increased to $43.8 million in Q1 2025 from $31 million in Q1 2024, despite losing IP exclusivity [22][23] Market Data and Key Metrics Changes - The top five dialysis organizations have ordered Vafcio, with revenues primarily coming from small to mid-sized dialysis organizations treating approximately 150,000 patients [8][14] - The VOICE study is progressing towards full enrollment, with about 75% of the target 2,200 subjects enrolled [10] Company Strategy and Development Direction - The company aims to expand the use of Vafcio in both dialysis and non-dialysis patient populations, with plans to initiate a Phase III VALOR trial in the second half of 2025 [10][11] - The focus remains on increasing the breadth and depth of prescribing among current customers while unlocking new customers [21][27] Management's Comments on Operating Environment and Future Outlook - Management expressed optimism about the strong early performance of Vafcio, highlighting the importance of prescriber education and patient retention [6][21] - The company is confident in its financial position and ability to achieve profitability based on its current operating plan [26][27] Other Important Information - The company ended Q1 2025 with $113.4 million in cash and cash equivalents, bolstered by a public offering that raised over $46 million [26] - The company has at least 12 months of Vafcio inventory on hand in the U.S. and does not expect significant tariff-related impacts [24] Q&A Session Summary Question: Update on timelines for adding Vafcio to protocols at large dialysis organizations - Management indicated that a large pilot is planned to operationalize protocols, with training expected to take about a month, followed by a pilot duration of two to three months [29][31][34] Question: Shift from Auryxia prescriptions to authorized generic - Management noted that the impact of the authorized generic has been minimal in Q1 2025, with expectations that it will not significantly affect business in Q2 [46][48][49] Question: Net price dynamics as large dialysis providers come on board - Management acknowledged that net prices may decrease as volumes increase, but there will be variability in pricing due to the competitive environment [53][55] Question: Demand drivers for Vafcio and reimbursement trends - Management highlighted that demand is driven by clinical efficacy and economic incentives, with positive trends in Medicare Advantage coverage [70][72][78] Question: Inventory stocking trends with large dialysis organizations - Management expects initial stocking for pilots but does not anticipate significant issues with inventory levels due to efficient distribution networks [84][88] Question: Market landscape for label expansion opportunities - Management expressed excitement about the non-dialysis market, which is comparable in size to the dialysis market, and emphasized the potential for significant revenue growth [90][92][94]