On May 15, 2026 Plus Therapeutics, Inc. (Nasdaq: PSTV) ("Plus" or the "Company"), a healthcare company developing and commercializing precision diagnostics and radiopharmaceuticals for central nervous system (CNS) cancers, reported financial results for the first quarter ended March 31, 2026 and provides an overview of recent and upcoming business highlights.

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"Our team remains focused on our two highest-priority 2026 goals, CNSide commercial scale-up and REYOBIQ pivotal-trial readiness," said Marc H. Hedrick, M.D., Plus Therapeutics President and Chief Executive Officer. "We continue to add payers for CNSide, including a fourth national payer, expanding coverage to approximately 81 million covered lives, as well as receiving a unique PLA code for billing and successfully enrolling CNSide with Medicare. Concurrently, we secured FDA Orphan Drug Designation for REYOBIQ in pediatric malignant gliomas, while progressing on the ReSPECT-LM clinical trial. We enter the second quarter with the resources and focus to continue to deliver on our 2026 milestones."

Q1 2026 AND RECENT HIGHLIGHTS

Corporate

Completed an upsized public offering generating $15 million in gross proceeds, increasing our available cash balance, and supporting CNSide commercialization and advancement of two ongoing Phase 2 clinical programs
Strengthened the leadership team with three senior appointments to support clinical development, market access, and research and development execution: Eric J. Daniels, M.D., MBA, joined as Chief Development Officer; Randy H. Goodman, Ph.D., M.H.A., joined as Vice President, Value Strategy and Health Economics & Outcomes Research; and Colby Squire joined as Vice President of Research & Development
REYOBIQ Development

Granted U.S. FDA Orphan Drug Designation for REYOBIQ (rhenium Re186 obisbemeda) for the treatment of pediatric malignant gliomas on April 8, 2026; the FDA broadened the designation beyond the Company’s original request to include progressive pediatric ependymoma
Secured American Medical Association Category III CPT reimbursement code for convection-enhanced delivery with REYOBIQ, unlocking market access and growth potential of REYOBIQ therapy in recurrent glioblastoma and pediatric brain cancer
Added SpectronRx as a second GMP manufacturing site for REYOBIQ supply, supporting commercial manufacturing readiness and supply chain resiliency for the ReSPECT-LM and ReSPECT-GBM trials
Reported on the Type B meeting with the FDA, with constructive feedback supporting the development plan for REYOBIQ in patients with leptomeningeal metastases (LM) and informing the path toward a pivotal trial framework
CNSide CSF Assay Platform

Received a unique PLA code for billing and successfully enrolled CNSide with Medicare to further advance reimbursement for the CNSide assay
Announced new payer coverage agreements, most recently with Blue Shield of California, effective April 2026, increasing total U.S. covered lives to approximately 81 million. This is the fourth national or regional payer added to a list that includes United Healthcare, Humana, and Highmark which were previously announced
Further scaled CNSide Diagnostics operations and capacity, including expansion of the field-based teams, customer service, and laboratory operations functions
FIRST QUARTER 2026 FINANCIAL RESULTS

Cash and investments balance was $15.1 million as of March 31, 2026, compared to $8.6 million as of December 31, 2025; the change reflects approximately $15 million in gross proceeds from the upsized January 2026 public offering, partially offset by operating expenditures during the quarter and paydown of the investor liability at December 31, 2025 of $4.5 million
Recognized $1.0 million in revenue in the first quarter of 2026, including grant revenue from CPRIT for the advancement of REYOBIQ in LM and CNSide diagnostic billings, compared to $1.1 million in the first quarter of 2025. CNSide commenced billing for diagnostic revenue in Q1 2026 with the amount fully reserved
Total operating loss for the first quarter of 2026 was $7.1 million, compared to $3.5 million for the first quarter of 2025; the change primarily reflects expansion of CNSide commercial operations and continued investment in REYOBIQ Phase 2 trial execution
Net loss for the first quarter of 2026 was $6.9 million, or $1.05 per basic share, compared to $17.4 million, or $29.86 per basic share, for the first quarter of 2025 (calculated post reverse)
REAFFIRMED ANTICIPATED MILESTONES AND OUTLOOK FOR 2026
The Company is reaffirming the milestone framework and outlook provided in its full-year 2025 results.

REYOBIQ clinical program:

Define optimal dose/interval for REYOBIQ in the ReSPECT-LM Phase 2 trial
Complete enrollment in the ReSPECT-GBM Phase 2 trial for glioblastoma; data expected in Q1 2027 and conduct End of Phase meeting with FDA
Begin enrollment in the ReSPECT-PBC pediatric brain cancer Phase 1 trial
Complete commercial manufacturing scale-up for REYOBIQ
CNSide commercial rollout:

Expand U.S. commercial payer coverage to greater than 150 million covered lives
Secure Medicare coverage pathway
Achieve greater than 1,250 annualized test orders
Launch additional CSF tumor characterization assays to expand the CNSide platform
About Leptomeningeal metastases (LM)
Leptomeningeal metastases (LM) are a rare but severe complication of advanced cancer, affecting the fluid-lined structures of the central nervous system. LM occurs in approximately 5% of patients with metastatic cancer, with breast cancer, lung cancer, and melanoma being the most common sources. Median survival is typically 2-6 months, and effective treatment options are limited, highlighting the urgent need for novel therapies.

About REYOBIQ (rhenium Re186 obisbemeda)
REYOBIQ (rhenium Re186 obisbemeda) is a novel injectable radiotherapy specifically formulated to deliver direct targeted high dose radiation in CNS tumors in a safe, effective, and convenient manner to optimize patient outcomes. REYOBIQ has the potential to reduce off-target risks and improve outcomes for CNS cancer patients, versus currently approved therapies, with a more targeted and potent radiation dose. Rhenium-186 is an ideal radioisotope for CNS therapeutic applications due to its short half-life, beta energy for destroying cancerous tissue, and gamma energy for real-time imaging. REYOBIQ is being evaluated for the treatment of recurrent glioblastoma, leptomeningeal metastases, and pediatric brain cancer in the ReSPECT-GBM, ReSPECT-LM, and ReSPECT-PBC clinical trials. ReSPECT-GBM is supported by an award from the National Cancer Institute (NCI), part of the U.S. National Institutes of Health (NIH), and ReSPECT-LM is funded by a three-year $17.6M grant by the Cancer Prevention & Research Institute of Texas (CPRIT). The Company’s ReSPECT-PBC clinical trial for pediatric brain cancer is supported by a $3 million grant from the U.S. Department of Defense’s Peer Reviewed Cancer Research Program.

(Press release, Plus Therapeutics, MAY 15, 2026, View Source [SID1234665789])

On May 15, 2026 Allarity Therapeutics, Inc. ("Allarity" or the "Company") (NASDAQ: ALLR), a Phase 2 clinical-stage pharmaceutical company dedicated to developing stenoparib (2X-121)—a differentiated, dual PARP and WNT pathway inhibitor, reported financial results and provided an update on operational highlights for the first quarter ended March 31, 2026.

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"Q1 2026 was an especially exciting period for Allarity. While we continue to accelerate stenoparib clinical development in advanced ovarian cancer, we have also begun to expand the reach for stenoparib into new cancer indications. Indeed, in Q1, we started enrolling relapsed small cell lung cancer patients onto the VA-funded trial combining stenoparib with temozolomide. This trial may help establish stenoparib as the combination agent of choice in the PARP inhibitor class. Moreover, we reported new preclinical data suggesting that stenoparib’s unique mechanism of action may make it an attractive therapy. And, we continued to strengthen the DRP companion diagnostic strategy to help identify the patients most likely to benefit from stenoparib. Critically important, we were also notified that one of our critical U.S. patent applications has been allowed, expanding the time horizon for stenoparib’s exclusivity," said Thomas Jensen, Chief Executive Officer of Allarity Therapeutics.

"Financially, we also excelled, ending the quarter with a significant cash position and a P&L profile consistent with the prior-year period. Net loss per share was lower compared with the prior-year period, and separately, we reduced our outstanding share count during the quarter through our repurchase program. We believe this combination of clinical and preclinical progress, a Notice of Allowance for new intellectual property and financial discipline solidifies the strongest position Allarity has ever had," Mr. Jensen continued.

Clinical and Drug Development Progress

Stenoparib Phase 3-ready drug production campaign is on track for third-quarter completion. Subsequent to quarter-end, Allarity announced that its active pharmaceutical ingredient manufacturing (API) campaign for stenoparib is progressing in line with the planned timeline for completion in the third quarter of 2026. No additional cash outlays for this API manufacturing campaign are anticipated.
Stenoparib DRP companion diagnostic received USPTO Notice of Allowance: Subsequent to quarter-end, the United States Patent and Trademark Office (USPTO) issued a Notice of Allowance for Allarity’s patent application covering the Company’s DRP companion diagnostic specific to stenoparib. The allowed application, if issued as a patent, is expected to extend exclusivity at least another 11 years for stenoparib when used in concert with the DRP as a companion diagnostic.
AACR 2026 data on DRP findings in ovarian cancer: Subsequent to quarter-end, Allarity presented clinical data at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2026 (AACR 2026) demonstrating that the highest stenoparib DRP scores were associated with the greatest overall survival in patients treated with stenoparib, reinforcing the potential value of DRP-based patient selection.
AACR 2026 data indicated stenoparib’s potential in colorectal cancer: Allarity also presented new findings demonstrating stenoparib’s ability to modulate the WNT/β-catenin signaling pathway and inhibit the growth of human colorectal cancer cell lines at clinically relevant concentrations.
VA-funded Phase 2 lung cancer trial opened for enrollment and initiated patient dosing: During the first quarter, Allarity announced that enrollment had opened and the first patients had been dosed in its collaborative investigator-initiated Phase 2 trial with the U.S. Department of Veterans Affairs (VA) evaluating stenoparib in combination with temozolomide for relapsed small cell lung cancer. The trial, which represents the first clinical evaluation of stenoparib in combination with another anti-cancer agent, is fully funded through the VA’s Special Emphasis Panel on Precision Oncology and is open for enrollment across 11 VA medical centers throughout the United States.
Ovarian cancer program continued under FDA Fast Track designation: Allarity continued enrollment in its Phase 2 clinical trial protocol evaluating stenoparib in advanced, recurrent, platinum-resistant or platinum-ineligible ovarian cancer. The amended protocol is designed expressly to capitalize on the emerging clinical experience with stenoparib in platinum-resistant patients and to accelerate the clinical development of stenoparib toward FDA approval.
Corporate and Strategic Developments

Closed $20 million promissory note financing to strengthen the Company’s financial position. During the first quarter, Allarity also secured a $6 million equity line of credit to support the continued advancement of stenoparib.
Reduced outstanding share count during the quarter while decreasing the net loss per share, reflecting the Company’s continued financial discipline and operational execution.
First Quarter 2026 Financial Highlights
Results of Operations for the Three Months Ended March 31, 2026

Cash Position: As of March 31, 2026, cash and restricted cash totaled $29.8 million, compared to total cash and restricted cash of $27.7 million at March 31, 2025.

Prepaid Expenses: Prepaid expenses increased to $3.5 million at March 31, 2026, compared to $2.1 million at December 31, 2025, primarily reflecting payments related to stenoparib API manufacturing activities supporting potential pivotal-stage development.

R&D Expenses: Research and Development (R&D) expenses were $1.3 million for the quarter ended March 31, 2026, compared to $1.4 million for the quarter ended March 31, 2025.

G&A Expenses: General and Administrative (G&A) expenses were $1.4 million for the quarter ended March 31, 2026, compared to $1.6 million for the quarter ended March 31, 2025.

Net Loss: Net loss attributable to common stockholders was $2.75 million for the quarter ended March 31, 2026, compared to $2.73 million for the quarter ended March 31, 2025. Net loss per common share was $0.17 for the quarter ended March 31, 2026, compared to $0.25 for the quarter ended March 31, 2025.

About Stenoparib/2X-121
Stenoparib is an orally available, small-molecule dual-targeted inhibitor of PARP1/2 and tankyrase 1/2. At present, tankyrases are attracting significant attention as emerging therapeutic targets for cancer, principally due to their role in regulating the WNT signaling pathway. Aberrant WNT/β-catenin signaling has been implicated in the development and progression of numerous cancers. By inhibiting PARP and blocking WNT pathway activation, stenoparib’s unique therapeutic action shows potential as a promising therapeutic for many cancer types, including ovarian cancer, small cell lung cancer and colorectal cancer. Allarity has secured exclusive global rights for the development and commercialization of stenoparib, which was originally developed by Eisai Co. Ltd. and was formerly known under the names E7449 and 2X-121. Allarity has two ongoing Phase 2 trial protocols for stenoparib in ovarian cancer patients. In the first, patients who had had 2+ lines of therapy were enrolled on stenoparib and given drug twice daily. This protocol has been closed to further enrollment but continues for the enrolled patients who are still receiving benefit from stenoparib administration. The updated data from this study were presented at the AACR (Free AACR Whitepaper) special conference on advances in ovarian cancer in September 2025. Note that, as these data are from an ongoing trial, analyses may change as the study fully matures. An amended protocol designed expressly to capitalize on the emerging clinical experience with stenoparib in platinum resistant patients began enrolling patients in the summer of 2025. This amended protocol enrolls only platinum resistant or platinum-ineligible patients and is designed to accelerate the clinical development of stenoparib toward FDA approval. In parallel, a separate Phase 2 trial evaluating stenoparib in combination with temozolomide for relapsed small cell lung cancer (SCLC) began enrolling patients in early 2026 and is currently enrolling patients across multiple VA sites.

About the Drug Response Predictor – DRP Companion Diagnostic
Allarity uses its drug-specific DRP to select those patients who, by the gene expression signature of their cancer, may have a high likelihood of benefiting from a specific drug. By screening patients before treatment, and only treating those patients with a sufficiently high, drug-specific DRP score, the therapeutic benefit rate may be enhanced. The DRP method builds on the comparison of sensitive vs. resistant human cancer cell lines, including transcriptomic information from cell lines, combined with clinical tumor biology filters and prior clinical trial outcomes. DRP is based on messenger RNA expression profiles from patient biopsies. The DRP platform has shown an ability to provide a statistically significant prediction of the clinical outcome from drug treatment in cancer patients across dozens of clinical studies (both retrospective and prospective). The DRP platform, which may be useful in all cancer types and is patented for dozens of anti-cancer drugs, has been extensively published in the peer-reviewed literature.

(Press release, Allarity Therapeutics, MAY 15, 2026, View Source [SID1234665788])

On May 15, 2026 Agenus Inc. (Nasdaq: AGEN), a leader in immuno-oncology innovation, reported the publication of Phase 1b data evaluating botensilimab (BOT), an Fc-enhanced anti-CTLA-4 antibody, in combination with balstilimab (BAL), an anti-PD-1 antibody, in patients with treatment-refractory hepatocellular carcinoma (HCC) who had progressed following prior immunotherapy. The manuscript, titled "A phase 1b study of botensilimab and balstilimab in treatment-refractory hepatocellular carcinoma," was published in Liver Cancer and is available at DOI: 10.1159/000551630.

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The publication reports results from an expansion cohort of the Phase 1b C-800-01 study in 19 patients with HCC who had progressed on or after prior immunotherapy. The cohort represents a difficult-to-treat population for which prospective data remain limited, including 47% of patients with albumin-bilirubin (ALBI) grade 2 liver function, a marker of poorer liver reserve and prognosis in HCC. In published HCC studies, ALBI grade 2 liver function has been linked to a 4- to 10-month decrement in median overall survival compared with ALBI grade 1, underscoring the poor prognosis and reduced responsiveness typically observed in this population.i

Among 18 efficacy-evaluable patients, BOT+BAL demonstrated an objective response rate (ORR) of 17%, including one complete response and two partial responses. The 18-week clinical benefit rate (CBR) was 50%. Median duration of response (mDOR) was not reached, median progression-free survival (mPFS) was 4.4 months, and median overall survival (mOS) was 12.3 months. All patients had received prior anti-PD-(L)1 therapy, 68% had received prior tyrosine kinase inhibitors, and 58% had received prior atezolizumab/bevacizumab. One patient experienced stable disease for 66 weeks, supporting the conclusion that benefit with BOT+BAL was not confined to RECIST response alone.

Treatment options after immune checkpoint inhibitor (ICI) therapy in advanced HCC remain limited, and available systemic therapies have generally shown modest activity. Published studies evaluating lenvatinib, cabozantinib and regorafenib after ICI-based therapy have reported objective response rates of 6–14%, median progression-free survival of approximately 4–5 months and median overall survival of ≤10.5 months.ii The BOT+BAL results therefore, provide early prospective evidence of activity in a post-ICI HCC population that included patients with adverse prognostic features often underrepresented in later-line studies.

"This publication adds to a consistent body of clinical evidence showing BOT plus BAL activity across difficult-to-treat, late-line solid tumors," said Steven O’Day, MD, Chief Medical Officer of Agenus. "In HCC, where tumor biology and underlying liver function both shape treatment outcomes, these data further support the rationale for botensilimab’s Fc-enhanced CTLA-4 design and its potential to drive immune activity in settings where conventional checkpoint approaches have had limited impact."

"Patients with advanced HCC who progress after immunotherapy have limited treatment options, and outcomes can be especially poor when liver function is compromised," said Anthony B. El-Khoueiry, MD, Chief of Section of Developmental Therapeutics and Associate Director for Clinical Research at USC Norris Comprehensive Cancer Center, part of Keck Medicine of USC, and principal investigator of the study. "In this exploratory cohort, seeing objective responses, prolonged disease control and a median overall survival of 12.3 months is encouraging and supports continued study of BOT plus BAL in this post-immunotherapy setting."

The safety profile of BOT+BAL in the HCC cohort was consistent with prior reports across the broader Phase 1b program. There were no treatment-related deaths and no new class safety signals. Immune-mediated treatment-related adverse events occurred in 68% of patients, with grade 3 events in 37%. The most common immune-mediated treatment-related adverse events were diarrhea/colitis, hepatitis and dermatologic events. No grade 4 or higher immune-mediated treatment-related adverse events were reported. All immune-mediated hepatitis events resolved to grade 1 or lower.

HCC is the most common form of liver cancer and is often diagnosed at an advanced stage. Immune checkpoint inhibitor combinations have improved outcomes in the frontline setting, but patients who progress after immunotherapy have limited prospective evidence to guide subsequent treatment. In the published manuscript, the authors concluded that BOT+BAL demonstrated promising efficacy and manageable safety in previously treated HCC, including patients who progressed after frontline immunotherapy, and that these findings warrant further investigation.

About the C-800-01 Study

C-800-01 (NCT03860272) is an open-label, multicenter Phase 1b clinical trial evaluating botensilimab in combination with or without balstilimab in patients with advanced solid tumors. The trial enrolled over 400 patients with refractory disease and included tumor types with limited or no responsiveness to prior checkpoint inhibitors.

The HCC expansion cohort enrolled 19 patients between March 2021 and September 2023 across six U.S. sites. Patients received botensilimab at 1 mg/kg or 2 mg/kg once every six weeks plus balstilimab 3 mg/kg once every two weeks. The safety analysis included all 19 patients who received at least one dose of study drug, and the efficacy-evaluable analysis included 18 patients with at least one post-baseline imaging scan.

(Press release, Agenus, MAY 15, 2026, View Source [SID1234665787])

On May 15, 2026 aTyr Pharma, Inc. (Nasdaq: ATYR) ("aTyr" or the "Company"), a clinical stage biotechnology company engaged in the discovery and development of first-in-class medicines from its proprietary tRNA synthetase platform, reported first quarter 2026 results and provided a corporate update.

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"2026 is off to a productive start, as we now have a clear path forward for efzofitimod in pulmonary sarcoidosis, a major form of interstitial lung disease (ILD), following our recent Type C meeting with the U.S. Food and Drug Administration (FDA)," said Sanjay S. Shukla, M.D., M.S., President and Chief Executive Officer of aTyr. "Based on feedback from the FDA, we plan to file an investigational new drug (IND) application next month for a new Phase 3 study in patients with chronic, symptomatic pulmonary sarcoidosis with restrictive lung disease utilizing forced vital capacity (FVC) as the primary endpoint of the study and the King’s Sarcoidosis Questionnaire (KSQ)-Lung score as a key secondary endpoint. We look forward to the continued advancement of efzofitimod in this form of ILD where there remains a high unmet medical need."

First Quarter 2026 and Subsequent Period Highlights

Announced plans to continue the development of efzofitimod in pulmonary sarcoidosis following a Type C meeting with the FDA to review the results of the Phase 3 EFZO-FIT study and determine the path forward for efzofitimod in pulmonary sarcoidosis. The Company plans to file an IND in June 2026 for a new Phase 3 study in patients with chronic, symptomatic pulmonary sarcoidosis with restrictive lung disease utilizing FVC as the primary endpoint of the study and the KSQ-Lung score as the key secondary endpoint. The Phase 3 trial is expected to be a global, randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of efzofitimod in patients with moderate to severe pulmonary sarcoidosis. The 54-week study will consist of two parallel cohorts randomized equally to either 5.0 mg/kg efzofitimod or placebo dosed intravenously once every 3 weeks for a total of 17 doses. The study is intended to enroll up to approximately 372 patients with symptomatic pulmonary sarcoidosis with restrictive lung disease who are receiving a stable dose of ≤ 5.0 mg daily oral corticosteroid and/or a background immunosuppressant. All background treatment will remain stable throughout the duration of the study. The primary endpoint of the study will be change from baseline in FVC at week 48 and the key secondary endpoint will be change from baseline in the KSQ-Lung score at week 48.
On track to complete enrollment in the Phase 2 EFZO-CONNECT study to evaluate the efficacy, safety and tolerability of efzofitimod in patients with limited or diffuse systemic sclerosis (SSc, or scleroderma)-related ILD (SSc-ILD) in the first half of 2026. This proof-of-concept study is a randomized, double-blind, placebo-controlled, 28-week study consisting of three parallel cohorts randomized 2:2:1 to either 270 mg or 450 mg of efzofitimod or placebo administered intravenously monthly for a total of six doses. The study intends to enroll up to 25 patients at multiple centers in the United States. Promising interim data from the study were reported in the second quarter of 2025.
Poster related to the Company’s investigational new drug candidate, ATYR0101, accepted for presentation at the Extracellular Matrix Pharmacology Congress, which is scheduled to take place June 14 – 17, 2026 in Copenhagen, Denmark. The poster, which is titled, "Natural Asp-tRNA Synthetase Fragment Interacts with LTBP-1 on the ECM Promoting Myofibroblast Apoptosis and Reducing Fibrosis," presents research indicating that AYTR0101 selectively induces myofibroblast apoptosis via modulation of focal adhesion kinase (FAK) signaling through a novel binding interaction with latent-transforming growth factor beta binding protein 1 (LTBP-1) and results in a significant reduction of fibrosis in lung and kidney models. The poster will be available on the Company’s website once presented.
First Quarter 2026 Financial Highlights and Cash Position

Cash & Investment Position: Cash, cash equivalents, restricted cash and available-for-sale investments as of March 31, 2026, were $68.3 million.
R&D Expenses: Research and development expenses were $7.3 million for the first quarter 2026, which consisted primarily of costs for the Phase 3 EFZO-FIT and Phase 2 EFZO-CONNECT studies and research and development costs for the Company’s preclinical product candidates.
G&A Expenses: General and administrative expenses were $4.1 million for the first quarter 2026.
About Efzofitimod

Efzofitimod is a novel biologic immunomodulator in clinical development for the treatment of interstitial lung disease (ILD), a group of immune-mediated disorders that can cause inflammation and fibrosis, or scarring, of the lungs. Efzofitimod is a tRNA synthetase derived therapy that selectively modulates activated myeloid cells through neuropilin-2 to resolve inflammation without immune suppression and potentially prevent the progression of fibrosis. Efzofitimod is currently being investigated in the Phase 2 EFZO-CONNECT study in patients with systemic sclerosis (SSc, or scleroderma)-related ILD, and aTyr intends to submit an investigational new drug (IND) application in June 2026 for a global Phase 3 study of efzofitimod in patients with pulmonary sarcoidosis, a major form of ILD. These forms of ILD have limited therapeutic options and there is a need for safer and more effective, disease-modifying treatments that improve outcomes.

(Press release, aTyr Pharma, MAY 15, 2026, View Source [SID1234665786])

On May 15, 2026 UroGen Pharma Ltd. (Nasdaq: URGN), a biotechnology company focused on transforming the treatment of urothelial and specialty cancers, reported UGN-103 achieved a 94.5% (95% CI: 86.1, 97.9) durability of response (DOR) at six months by Kaplan-Meier estimate, in the ongoing Phase 3 UTOPIA trial of UGN-103 (mitomycin) for intravesical solution in patients with recurrent low-grade intermediate-risk non-muscle invasive bladder cancer (LG-IR-NMIBC). The six-month results from UTOPIA are generally consistent with the 91.9% (95% CI: 86.9, 95.0) six-month DOR observed with ZUSDURI (mitomycin) for intravesical therapy in its pivotal ENVISION trial. ZUSDURI is the first and only treatment approved by the U.S. Food and Drug Administration (FDA) for adult patients with recurrent LG-IR-NMIBC.

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Based on the consistency of UTOPIA data with the results of the ENVISION trial studying ZUSDURI in patients meeting the same eligibility criteria and alignment with the FDA, UroGen remains on track to submit a New Drug Application (NDA) for UGN-103 in the third quarter of 2026.

"The durability of response observed at six months with UGN-103 in the UTOPIA trial is generally consistent with that observed in the pivotal ENVISION trial of ZUSDURI, and highlights the potential to further advance care for adult patients with recurrent LG-IR-NMIBC," said Abishek Srivastava, MD, Urologic Oncologist at Atlantic Urology Clinics, Myrtle Beach, SC, START Center for Cancer Research, Carolinas and lead investigator of the UTOPIA trial. "UGN-103 builds on a proven therapeutic approach with meaningful innovations that could help enhance how we deliver this therapy in clinical practice."

UGN-103 is designed to build on the clinical and commercial foundation of ZUSDURI. The benefits of UGN-103 include a more streamlined manufacturing process and simplified reconstitution, while preserving the innovative and proven RTGel technology that enables sustained drug exposure at tumor sites in the bladder.

"These clinical data reinforce the potential of UGN-103 to become a new standard of care for adult patients with recurrent LG-IR-NMIBC," said Liz Barrett, President and Chief Executive Officer of UroGen. "With FDA alignment on our regulatory path, we are advancing with urgency toward NDA submission. We believe UGN-103 represents a significant opportunity to build on our leadership in uro-oncology, expand our commercial portfolio, and drive long-term growth."

UroGen holds U.S. patents covering the combination of its proprietary RTGel technology with medac’s licensed lyophilized mitomycin formulation, as well as the use of UGN-103 in LG-IR-NMIBC, with intellectual property protection expected to extend into December 2041.

About UTOPIA

The UTOPIA trial is a single-arm, multicenter study evaluating the efficacy and safety of UGN-103 in 99 patients across global sites. Enrolled patients received 75 mg of UGN-103 via intravesical instillation in an outpatient setting once weekly for six weeks. The primary endpoint is CR rate at three months, with responders entering a follow-up phase of up to 12 months to assess DOR. For more information on the UTOPIA study, please visit View Source

About UGN-103
In January 2024, UroGen entered into a licensing and supply agreement with medac to develop UGN-103 for recurrent LG-IR-NMIBC. UGN-103 is designed to reinforce and extend the clinical and commercial profile of ZUSDURI, the first and only FDA-approved treatment for adults with recurrent LG-IR-NMIBC. The program maintains UroGen’s innovative and proven RTGel technology, enabling sustained mitomycin exposure in the bladder, while incorporating next-generation enhancements, including a more streamlined manufacturing process and simplified reconstitution to support improved ease of use in clinical practice. UroGen holds U.S. patents covering the combination of its proprietary RTGel technology with medac’s licensed lyophilized mitomycin formulation, as well as the use of UGN-103 in LG-IR-NMIBC, with intellectual property protection expected to extend into December 2041.

About ZUSDURI

ZUSDURI (mitomycin) for intravesical solution is an innovative drug formulation of mitomycin approved for the treatment of adults with recurrent LG-IR-NMIBC. Utilizing UroGen’s proprietary RTGel technology (a sustained release, hydrogel-based formulation), ZUSDURI is delivered directly into the bladder by a trained healthcare professional using a urinary catheter in an outpatient setting, thereby enabling the treatment of tumors by non-surgical means.

About Non-Muscle Invasive Bladder Cancer (NMIBC)
LG-IR-NMIBC affects around 82,000 people in the United States every year and of those, an estimated 59,000 are recurrent. Bladder cancer primarily affects older populations with increased risk of comorbidities, with the median age of diagnosis being 73 years. Guideline recommendations for the management of NMIBC include transurethral resection of bladder tumor (TURBT) as the standard of care. Up to 70 percent of NMIBC patients experience at least one recurrence, and LG-IR-NMIBC patients are even more likely to recur and face repeated TURBT procedures. Learn more about NMIBC at www.BladderCancerAnswers.com.

(Press release, UroGen Pharma, MAY 15, 2026, View Source [SID1234665781])