Biotheryx to Present Results from its Phase 1A Dose Escalation Study of BTX-9341 for the Treatment of HR+/HER2- Breast Cancer at the 2026 European Society for Medical Oncology Breast Cancer Annual Congress

On May 4, 2026 Biotheryx, Inc., a biopharmaceutical company focused on the discovery and development of first-in-class protein degraders for cancer and inflammatory diseases, reported that data from its Phase 1A Dose Escalation Study of BTX-9341, a potent and selective CDK4/6 degrader, in combination with fulvestrant for the treatment of HR+/HER2- breast cancer in patients who have previously received CDK4/6 inhibitor therapy in the advanced and/or metastatic setting, will be presented as an oral presentation at the 2026 European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Breast Cancer Annual Congress, taking place May 6 – 8 in Berlin, Germany.

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2026 ESMO (Free ESMO Whitepaper) Breast Cancer Presentation Details:

Title: Dose optimization of BTX-9341, a first-in-class CDK4/6 bifunctional degrader, in CDK4/6 inhibitor-pretreated HR+/HER2− advanced/metastatic breast cancer

Presenter: Dr. Matthew Goetz, MD, Mayo Clinic, Rochester, USA

Presentation #: 421RO

Session: Rapid Oral Session 2, Berlin Hall

Session Date and Time: Friday, May 8, 2026 | 8:30-10:00 AM

About BTX-9341

BTX-9341 is a first-in-class, oral degrader of CDK4/6, important targets for a range of cancers and clinically validated in HR+/HER2- breast cancer. In preclinical breast cancer models, BTX-9341 demonstrated superiority to CDK4/6 inhibitors through potent and highly selective catalytic degradation of CDK4 and CDK6, robust inhibition of CDK2 and Cyclin E transcription, cell cycle arrest, and ultimately superior in vivo efficacy in breast cancer xenografts. Beyond this increased efficacy potential, BTX-9341 is differentiated from CDK4/6 inhibitor approaches through the ability to overcome key resistance mechanisms that limit the impact of inhibitors in second line HR+/HER2- metastatic breast cancer.

(Press release, BioTheryX, MAY 4, 2026, View Source;breast-cancer-at-the-2026-european-society-for-medical-oncology-breast-cancer-annual-congress-302760537.html [SID1234665063])

XtalPi -Enabled PharmaEngine PEP08 Achieves Enrollment Milestone, with Second Synthetic Lethality Program Underway

On May 4, 2026 XtalPi (2228.HK), a leading AI- and robotics-powered innovation platform, reported dual breakthroughs in its strategic partnership with PharmaEngine (4162.TWO) PEP08, a next-generation PRMT5 inhibitor discovered via XtalPi’s platform, has successfully begun enrollments in a Phase I solid tumor trial, achieving a new clinical milestone. Built upon the success of PEP08 at the drug discovery stage, the two companies initiated a second project, targeting a different undisclosed synthetic lethality mechanism.

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PEP08 received clinical clearance in June 2025 and is currently in Phase I evaluation for solid tumors in Australia and the Taiwan region. The enrollment milestone underscores XtalPi’s ability to deliver differentiated molecules with strong drug-like properties, while demonstrating the program’s steady clinical advancement.

Leveraging XtalPi’s integrated quantum physics-, AI-, and robotics-powered platform, PEP08 was designed to overcome the dose-limiting hematological toxicities seen with first-generation PRMT5 inhibitors. The molecule exploits an innovative MTA-cooperative binding mode to specifically target MTAP-deleted tumors—a genomic alteration found in 10-15% of all human cancers, with higher frequencies observed in NSCLC, pancreatic cancer, glioblastoma, and more. Preclinical data presented at 2025 AACR (Free AACR Whitepaper) show PEP08 achieving superior efficacy compared to other clinical-stage MTA-cooperative PRMT5 inhibitors across multiple MTAP-deleted tumor models, supporting a potential best-in-class profile.

Driven by the success of PEP08 at the drug discovery stage, the partnership expanded into a second project. By combining PharmaEngine’s deep oncology expertise with XtalPi’s AI and robotics molecular design engine, the duo aims to capture additional market share in the synthetic lethality space.

Synthetic lethality is widely recognized as challenging yet highly promising frontier in oncology. According to Globocan and industry data, the global market is expected to grow from $4.2 billion to $17.6 billion by 2033, at a 17.3% CAGR. In recent years, several early-stage licensing deals in this space have exceeded $1 billion USD, further underscoring the immense clinical value and commercial appetite for this category.

The clinical advancement of PEP08 and the ongoing collaboration of the second project serve as a dual validation of XtalPi’s AI+robotics discovery engine. By repeatedly meeting rigorous benchmarks in complex target spaces, XtalPi has built a reproducible innovation model that turns deep know-how into high-value clinical assets. Underpinned by a milestone-sharing structure, this model tightly aligns the platform’s evolution with clinical success, quickly translating biological insights into tangible impact for partners and patients around the world.

Dr. Shuhao Wen, Chairman of XtalPi commented, "The clinical progress of PEP08 and the ongoing collaboration of the second project are testaments to the synergy between our teams, and highlights the reliability of XtalPi’s R&D platform in tackling complex targets. We look forward to further applying this model to deliver high-quality pipeline assets for our partners and generate sustained value for our shareholders."

"PharmaEngine has been advancing its R&D capabilities, and our collaboration with XtalPi exemplifies our ability to harness innovative technologies to propel next-generation discoveries in precision oncology," said Dr. Hong-Ren Wang, CEO and President of PharmaEngine. "XtalPi’s R&D platform played a key role in the early-stage discovery of PEP08, providing a robust foundation for its clinical entry. Our collaboration of PEP08 and the second project demonstrates our ongoing efforts to advance cancer treatment development worldwide.

(Press release, XtalPi, MAY 4, 2026, View Source;enabled-pharmaengine-pep08-achieves-enrollment-milestone-with-second-synthetic-lethality-program-underway-302760846.html [SID1234665062])

Biohaven Reports Recent Business Developments and First Quarter 2026 Financial Results

On May 4, 2026 Biohaven Ltd. (NYSE: BHVN) (Biohaven or the Company), a global clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of life-changing therapies to treat a broad range of rare and common diseases, reported financial results for the first quarter ended March 31, 2026, and provided a review of recent accomplishments and anticipated upcoming developments.

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Vlad Coric, M.D., Chairman and Chief Executive Officer of Biohaven, commented, "We are planning for a transformative year ahead at Biohaven, with multiple potential value-driving milestones on the horizon. In the coming several weeks, we expect the initiation of our pivotal clinical trials to advance our novel MoDE and TRAP extracellular protein degradation platform into two pivotal studies, BHV-1300 for Graves’ disease and BHV-1400 for IgA nephropathy. These pivotal trials represent a key milestone for the degrader platform and further extends the clinical validation of our strategy to selectively degrade disease-causing proteins with our precision immunology technology. In the second half of 2026, we expect to report pivotal data from our epilepsy program and topline results from our obesity program."

Dr. Coric continued, "Additionally, our first-in-class FGFR3-directed ADC, BHV-1530, continues dose escalation with no dose-limiting toxicities observed to date, and we have begun an expansion cohort in advanced endometrial cancer with our next-generation TROP-2 directed ADC BHV-1510 in combination with Libtayo. We are also excited about progress with our TYK2/JAK1 inhibitor for early Parkinson’s disease and continue to advance enrollment in this trial. Finally, our thought leadership in neurology was on display last month at AAN, where we notably delivered a total of 5 oral presentations and posters highlighting our differentiated neuroscience and immunoscience portfolio. Though our approach has been marked by a disciplined and careful management of resources, we are pleased with progress achieved in recent months and look forward to sharing more detailed and robust updates across our portfolio at our annual R&D Day at the Yale Innovation Summit on May 27, 2026 in New Haven, Connecticut."

First Quarter and Recent Business Updates

First Quarter 2026 and Recent Business Highlights

Completed Enrollment in Phase 2 Obesity Study with Taldefgrobep Alfa – Taldefgrobep alfa, a myostatin-activin pathway inhibitor, offers the potential to achieve high-quality weight loss in people living with obesity. Biohaven initiated a taldefgrobep Phase 2 proof-of-concept study in obesity in 4Q 2025. This randomized, placebo-controlled dose-ranging study is evaluating the efficacy and tolerability of once-weekly and once-monthly taldefgrobep as monotherapy, via self-administered autoinjector, in adults living with overweight and obesity. Topline data from the study are expected in 2H 2026.
Oral and poster presentations at AAN underpinned breadth of development work across core programs – In April 2026, the Company delivered 1 oral presentation and 4 posters at the AAN Annual Meeting, showcasing development programs including Kv7 ion channel activation, extracellular protein degraders, and TYK2/JAK1 inhibition.
Expected Upcoming Milestones:

We believe Biohaven is well positioned to achieve significant, value-creating milestones in 2026 across numerous programs:

Selective Kv7 Ion Channel Activator (Opakalim):

Continue two Phase 2/3 studies in focal epilepsy; initial topline results for the first study expected in 2H 2026.
Myostatin-Activin Pathway Inhibitor (Taldefgrobep alfa):

Completed enrollment in Phase 2 study in obesity in 1Q 2026; topline results expected in 2H 2026.
Lead TRAP and MoDE Extracellular Protein Degraders (BHV-1400 and BHV-1300)

BHV-1400: Pivotal study initiation in IgAN study expected mid-year 2026
BHV-1300: Pivotal study initiation in Graves’ disease expected mid-year 2026.
Capital Position:

Cash, cash equivalents, marketable securities and restricted cash as of March 31, 2026, totaled approximately $351.8 million.

First Quarter 2025 Financial Highlights:

Research and Development (R&D) Expenses: R&D expenses, including non-cash share-based compensation costs, were $103.8 million for the three months ended March 31, 2026, compared to $187.6 million for the three months ended March 31, 2025. The decrease of $83.8 million was primarily due to decreases in direct program and preclinical spend, and non-cash share-based compensation expense in 2026 as compared to the same period in the prior year. The decrease in direct program spend was largely due to our strategic reprioritization of programs which was implemented in the fourth quarter of 2025. The decrease in R&D expense included a $17.0 million decrease in preclinical research programs, which was primarily due to an upfront share payment valued at $4.9 million and an accrual for an upfront cash payment of $5.0 million related to agreements entered into during the three months ended March 31, 2025.

General and Administrative (G&A) Expenses: G&A expenses, including non-cash share-based compensation costs, were $26.6 million for the three months ended March 31, 2026, compared to $34.0 million for the three months ended March 31, 2025. The decrease of $7.4 million was primarily due to decreased non-cash share-based compensation expense. Non-cash share-based compensation expense was $9.8 million for the three months ended March 31, 2026, a decrease of $8.0 million as compared to the same period in 2025. Non-cash share-based compensation expense was lower in 2026 primarily due to our annual equity incentive awards granted in the first quarter of 2026, which had a lower grant date fair value per share than the annual awards granted in the first quarter of 2025.

Other (Expense) Income, Net: Other (expense) income, net was other expense, net of $0.2 million for the three months ended March 31, 2026, compared to other income, net of $0.5 million for the three months ended March 31, 2025. The decrease of $0.3 million was primarily due to non-cash losses related to changes in fair value of our notes payable liability under the Note Purchase Agreement with Beetlejuice SA LLC, an affiliate of Oberland Capital Management LLC, entered into during the second quarter of 2025 (the NPA), and decreased investment income during the three months ended March 31, 2026, which was partially offset by losses recorded for the non-cash changes in the fair value of our forward contracts and derivative liabilities in connection with the amendment to our Membership Interest Purchase Agreement with Knopp Biosciences LLC in May 2024 (the Knopp Amendment) during the three months ended March 31, 2025.

Net Loss: Biohaven reported a net loss for the three months ended March 31, 2026 of $130.5 million, or $0.88 per share, compared to $221.7 million, or $2.17 per share, for the same period in 2025. Non-GAAP adjusted net loss for the three months ended March 31, 2026 was $102.2 million, or $0.69 per share, compared to $166.8 million, or $1.64 per share, for the same period in 2025. These non-GAAP adjusted net loss and non-GAAP adjusted net loss per share measures, more fully described below under "Non-GAAP Financial Measures," exclude non-cash share-based compensation charges and losses from the change in fair value of derivatives. A reconciliation of the GAAP financial results to non-GAAP financial results is included in the tables below.

(Press release, Biohaven Pharmaceutical, MAY 4, 2026, View Source [SID1234665061])

Nuvation Bio Reports First Quarter 2026 Financial Results and Provides Business Update

On May 4, 2026 Nuvation Bio Inc. (NYSE: NUVB), a global oncology company focused on tackling some of the toughest challenges in cancer treatment, reported financial results for the first quarter ended March 31, 2026, and provided a business update.

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"We are pleased with IBTROZI’s ongoing launch trends in the first quarter of 2026, as we continue to deepen its adoption across lines of therapy and make significant progress in becoming the standard of care for people living with advanced ROS1-positive NSCLC. The newly updated long-term follow-up data from our pivotal studies presented at AACR (Free AACR Whitepaper) demonstrated an unprecedented durability for IBTROZI of now more than four years in TKI-naïve patients, further supporting healthcare providers and their patients’ confidence in selecting IBTROZI. With our partners, we are well on our way to bringing this important medicine to patients in need around the world," said David Hung, M.D., Founder, President, and Chief Executive Officer of Nuvation Bio. "We are also thrilled to have secured exclusive global development and commercialization rights to safusidenib. We look forward to advancing the pivotal Phase 3 SIGMA study for patients with high-risk IDH1-mutant glioma, where targeted treatment options are incredibly limited. Additionally, we are well on track to provide updates on our drug-drug conjugate platform later this year as we further our mission to tackle some of the toughest challenges in cancer treatment."

First Quarter 2026 and Recent Corporate Highlights:

IBTROZI (taletrectinib), ROS1 inhibitor: Advanced ROS1+ NSCLC

In the first quarter of 2026, Nuvation Bio reported $18.5 million in net product revenues for IBTROZI.
In the first quarter of 2026, more than half of the approximately 200 new patients who started treatment with IBTROZI for advanced ROS1+ NSCLC were TKI-naïve, reflecting a sustained high rate of adoption and confidence in IBTROZI among healthcare professionals and patients. Since launch in late June 2025, over 600 patients have started IBTROZI.
In April 2026, Nuvation Bio presented updated pooled results from the TRUST-I and TRUST-II studies of IBTROZI in both TKI-naïve and TKI-pretreated patients at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2026. Notably, in the pooled TKI-naïve population, IBTROZI demonstrated robust confirmed overall response rates (cORR), median duration of response (mDOR) and median progression-free survival (mPFS) in TKI-naïve patients. Updated results from the TRUST-I study were also simultaneously published in the Journal of Clinical Oncology.
For TKI-naïve patients (n=157): the analysis showed a cORR of 89.8%, a mDOR of 49.7 months, a mPFS of 46.1 months and an intracranial response rate of 76.5% in patients with brain metastases (n=17). Median overall survival (OS) was not yet reached.
For TKI-pretreated patients (n=113): the analysis showed a cORR of 55.8%, a mDOR of 16.6 months, a mPFS of 9.7 months and an intracranial response rate of 65.6% in patients with brain metastases (n=32). Median OS was 29.8 months. Notably, 98% of TKI-pretreated patients (111/113) enrolled following progressive disease on entrectinib or crizotinib rather than intolerance, a higher bar for efficacy. The remaining two patients were enrolled following intolerance to a prior TKI.
A pooled safety analysis demonstrated a favorable and generally manageable safety profile for IBTROZI, consistent with its prescribing information and no new safety signals were identified with longer follow-up.
In April 2026, Nuvation Bio announced that taletrectinib (IBTROZI) has been added to the latest National Comprehensive Cancer Network Clinical Practice Guidelines (NCCN Guidelines) in Oncology for Central Nervous System (CNS) cancers. Specifically, the NCCN Guidelines for CNS Cancers now recommend taletrectinib (IBTROZI) as a systemic therapy option for ROS1+ NSCLC patients with brain metastases.
In March 2026, Nuvation Bio announced with Eisai Co., Ltd. that the European Medicines Agency (EMA) had validated the Marketing Authorisation Application (MAA) for taletrectinib for the treatment of advanced ROS1+ NSCLC. The filing is being considered for full approval and will follow a standard review timeline.
On January 11, 2026, Nuvation Bio entered an exclusive license and collaboration agreement with Eisai Co., Ltd. to develop, register and commercialize taletrectinib for the treatment of ROS1+ NSCLC in Europe and certain other territories outside of the U.S., China and Japan.
Safusidenib, mIDH1 inhibitor: IDH1-mutant glioma

In April 2026, Nuvation Bio announced that it has acquired the Japan rights to safusidenib from Daiichi Sankyo, giving Nuvation Bio full global development and commercialization rights. The agreement also transfers ownership of the global clinical development program to Nuvation Bio, inclusive of clinical trials, past and current data generation, and future publications.
Nuvation Bio plans to present longer-term data from the Phase 2 study at a future medical meeting. As of February 2026, 12 of the 27 patients in the study remain on treatment with safusidenib with a median follow-up of over 5 years.
In January 2026, Nuvation Bio announced the finalization of the protocol amendment for the ongoing global Phase 3 SIGMA study for the maintenance treatment of patients with IDH1-mutant astrocytoma who have high-risk features following standard-of-care (G203). At that time, Nuvation Bio also announced that the trial would enroll a non-pivotal single-arm cohort to examine the efficacy and safety of safusidenib in chemotherapy- and radiotherapy-naïve patients with grade 3 IDH1-mutant oligodendroglioma with the primary endpoint of this arm being objective response rate.
Drug-drug conjugate (DDC) platform: Solid tumors

Nuvation Bio continues to explore new preclinical candidates for this novel modality and aims to provide further updates by year-end 2026.
Corporate Update:

In March 2026, Nuvation Bio appointed Stephen Dang, Ph.D., as Chief Legal Officer. Dr. Dang originally joined Nuvation Bio in 2021 and has over 18 years of experience in the biopharmaceutical industry across all stages of the drug product life cycle.
First Quarter 2026 Financial Results
As of March 31, 2026, Nuvation Bio had cash, cash equivalents, and marketable securities of $533.7 million.

Product Revenue, Net
To date, Nuvation Bio’s only source of product revenue remains from the U.S. sales of IBTROZI, which Nuvation Bio began distributing to its U.S. customers in June 2025. Net product revenue from U.S. sales of IBTROZI was approximately $18.5 million for the three months ended March 31, 2026.

Collaboration and License Agreements Revenue
For the three months ended March 31, 2026, collaboration and license agreements revenue was $64.7 million, compared to $3.1 million for the three months ended March 31, 2025. The increase is primarily due to a $58.7 million increase in license revenue because of the upfront payment received under the Eisai agreement, a $2.4 million increase in product supply, a $1.5 million increase in royalty revenue, and was offset by a $1.0 million decrease in research and development service revenue.

Taletrectinib was included in China’s National Reimbursement Drug List effective January 1, 2026. Royalty revenue for the quarter from collaboration agreements for China and Japan was $1.7 million.

Research and Development Expenses
For the three months ended March 31, 2026, research and development expenses were $35.0 million, compared to $24.6 million for the three months ended March 31, 2025. The increase was primarily due to a $1.5 million increase in salaries and other benefits driven by the increase in headcount and stock-based compensation, and $8.9 million increase in third-party costs related to clinical trials.

Selling, General and Administrative Expenses
For the three months ended March 31, 2026, selling, general, and administrative expenses were $38.3 million, compared to $35.4 million for the three months ended March 31, 2025. The increase was due to a $5.7 million increase in salaries and other benefits driven by the increase in headcount and stock-based compensation, and $0.1 million increase in taxes, offset by a $1.7 million decrease in sales and marketing expenses and $1.2 million decrease in professional fees.

Net income
For the three months ended March 31, 2026, Nuvation Bio reported a net income of $5.4 million, or $0.02 per share on a basic basis and $0.01 per share on a diluted basis. The net loss for the comparable period in 2025 was $53.2 million, or $(0.16) per share on a basic and diluted basis.

Conference Call and Webcast
Nuvation Bio will host a conference call and webcast today, May 4, 2026, at 4:30 pm ET to discuss its financial results for the first quarter of 2026 and provide business updates.

Investors and the general public are invited to listen to the live webcast and may register on the Investor Relations section of the Nuvation Bio website. To access the live conference call, participants can dial +1 833-461-5787 (U.S. toll-free) and enter access code 266802059. An archived recording will be available on Nuvation Bio’s website for 90 days following the event.

About ROS1+ NSCLC
Each year, more than one million people globally are diagnosed with non-small cell lung cancer (NSCLC), the most common form of lung cancer. It is estimated that approximately 2% of patients with NSCLC have ROS1+ disease. About 35% of patients newly diagnosed with metastatic ROS1+ NSCLC have tumors that have spread to their brain. The brain is also the most common site of disease progression, with about 50% of previously treated patients developing central nervous system (CNS) metastases.

About IBTROZI
IBTROZI is an oral, potent, CNS-active, selective, next-generation ROS1 inhibitor therapy. On June 11, 2025, following Priority Review and Breakthrough Therapy designations for both TKI-naive and TKI-pretreated disease, the U.S. Food and Drug Administration (FDA) approved taletrectinib for the treatment of adult patients with locally advanced or metastatic ROS1+ NSCLC. Learn more about taletrectinib in the U.S. at IBTROZI.com.

About the TRUST Clinical Program
The TRUST clinical program comprises three registrational studies evaluating the safety and efficacy of IBTROZI. TRUST-I (NCT04395677) and TRUST-II (NCT04919811) are Phase 2 single-arm studies evaluating IBTROZI for the treatment of adults with advanced ROS1+ NSCLC in China (N=173) and globally (N=189), respectively. The primary endpoint of both studies is confirmed objective response rate (cORR) as assessed by an independent review committee. TRUST-IV (NCT07154706) is a Phase 3 placebo-controlled study evaluating IBTROZI for the adjuvant treatment of adults with resected early-stage ROS1+ NSCLC. The study will enroll approximately 180 patients in the U.S., Canada, Europe, Japan and China. The primary endpoint is disease-free survival as determined by investigator, and the primary completion date is estimated to be in 2030. Nuvation Bio is also sponsoring TRUST-III (NCT06564324), a confirmatory randomized Phase 3 study evaluating IBTROZI versus crizotinib in 194 patients in China with advanced ROS1+ NSCLC who have not previously received ROS1 TKIs.

Indication
IBTROZI is indicated for the treatment of adult patients with locally advanced or metastatic ROS1+ non-small cell lung cancer (NSCLC).

IMPORTANT SAFETY INFORMATION FOR IBTROZI (taletrectinib)

WARNINGS AND PRECAUTIONS

Hepatotoxicity: Hepatotoxicity, including drug-induced liver injury and fatal adverse reactions, can occur. 88% of patients experienced increased AST, including 10% Grade 3/4. 85% of patients experienced increased ALT, including 13% Grade 3/4. Fatal liver events occurred in 0.6% of patients. Median time to first onset of AST or ALT elevation was 15 days (range: 3 days to 20.8 months).

Increased AST or ALT each led to dose interruption in 7% of patients and dose reduction in 5% and 9% of patients, respectively. Permanent discontinuation was caused by increased AST, ALT, or bilirubin each in 0.3% and by hepatotoxicity in 0.6% of patients.

Concurrent elevations in AST or ALT ≥3 times the ULN and total bilirubin ≥2 times the ULN, with normal alkaline phosphatase, occurred in 0.6% of patients.

Interstitial Lung Disease (ILD)/Pneumonitis: Severe, life-threatening, or fatal ILD or pneumonitis can occur. ILD/pneumonitis occurred in 2.3% of patients, including 1.1% Grade 3/4. One fatal ILD case occurred at the 400 mg daily dose. Median time to first onset of ILD/pneumonitis was 3.8 months (range: 12 days to 11.8 months).

ILD/pneumonitis led to dose interruption in 1.1% of patients, dose reduction in 0.6% of patients, and permanent discontinuation in 0.6% of patients.

QTc Interval Prolongation: QTc interval prolongation can occur, which can increase the risk for ventricular tachyarrhythmias (e.g., torsades de pointes) or sudden death. IBTROZI prolongs the QTc interval in a concentration-dependent manner.

In patients who received IBTROZI and underwent at least one post baseline ECG, QTcF increase of >60 msec compared to baseline and QTcF >500 msec occurred in 13% and 2.6% of patients, respectively. 3.4% of patients experienced Grade ≥3. Median time from first dose of IBTROZI to onset of ECG QT prolongation was 22 days (range: 1 day to 38.7 months). Dose interruption and dose reduction each occurred in 2.8% of patients.

Significant QTc interval prolongation may occur when IBTROZI is taken with food, strong and moderate CYP3A inhibitors, and/or drugs with a known potential to prolong QTc. Administer IBTROZI on an empty stomach. Avoid concomitant use with strong and moderate CYP3A inhibitors and/or drugs with a known potential to prolong QTc.

Hyperuricemia: Hyperuricemia can occur and was reported in 14% of patients, with 16% of these requiring urate-lowering medication without pre-existing gout or hyperuricemia. 0.3% of patients experienced Grade ≥3. Median time to first onset was 2.1 months (range: 7 days to 35.8 months). Dose interruption occurred in 0.3% of patients.

Myalgia with Creatine Phosphokinase (CPK) Elevation: Myalgia with or without CPK elevation can occur. Myalgia occurred in 10% of patients. Median time to first onset was 11 days (range: 2 days to 10 months).

Concurrent myalgia with increased CPK within a 7-day time period occurred in 0.9% of patients. Dose interruption occurred in 0.3% of patients with myalgia and concurrent CPK elevation.

Skeletal Fractures: IBTROZI can increase the risk of fractures. ROS1 inhibitors as a class have been associated with skeletal fractures. 3.4% of patients experienced fractures, including 1.4% Grade 3. Some fractures occurred in the setting of a fall or other predisposing factors. Median time to first onset of fracture was 10.7 months (range: 26 days to 29.1 months). Dose interruption occurred in 0.3% of patients.

Embryo-Fetal Toxicity: Based on literature, animal studies, and its mechanism of action, IBTROZI can cause fetal harm when administered to a pregnant woman.

ADVERSE REACTIONS
Among patients who received IBTROZI, the most frequently reported adverse reactions (≥20%) were diarrhea (64%), nausea (47%), vomiting (43%), dizziness (22%), rash (22%), constipation (21%), and fatigue (20%).

The most frequently reported Grade 3/4 laboratory abnormalities (≥5%) were increased ALT (13%), increased AST (10%), decreased neutrophils (5%), and increased creatine phosphokinase (5%).

DRUG INTERACTIONS

Strong and Moderate CYP3A Inhibitors/CYP3A Inducers and Drugs that Prolong the QTc Interval: Avoid concomitant use.
Gastric Acid Reducing Agents: Avoid concomitant use with PPIs and H2 receptor antagonists. If an acid-reducing agent cannot be avoided, administer locally acting antacids at least 2 hours before or 2 hours after taking IBTROZI.
OTHER CONSIDERATIONS

Pregnancy: Please see important information in Warnings and Precautions under Embryo-Fetal Toxicity.
Lactation: Advise women not to breastfeed during treatment and for 3 weeks after the last dose.
Effect on Fertility: Based on findings in animals, IBTROZI may impair fertility in males and females. The effects on animal fertility were reversible.
Pediatric Use: The safety and effectiveness of IBTROZI in pediatric patients has not been established.
Photosensitivity: IBTROZI can cause photosensitivity. Advise patients to minimize sun exposure and to use sun protection, including broad-spectrum sunscreen, during treatment and for at least 5 days after discontinuation.
Please see accompanying full Prescribing Information.

About IDH1-Mutant Glioma
Gliomas are the most common type of brain cancer in adults worldwide. In the U.S., nearly 2,500 people are diagnosed with IDH1-mutant gliomas each year, of which more than 95% harbor a mutation in the IDH1 gene. Most patients are diagnosed in their 30s and 40s. While patients with IDH1 mutations generally have longer survival times than those with wild-type IDH1, gliomas are not currently curable and prognosis worsens for those with high-risk features, including high grade tumors.

About Safusidenib
Safusidenib is an investigational, oral, brain-penetrant, selective inhibitor of mutant IDH1. It is being studied in patient populations with significant unmet medical need, including settings where there are limited or no approved targeted treatment options. In Phase 1 and Phase 2 clinical studies, safusidenib demonstrated encouraging clinical activity, including delayed disease progression and durable responses across a range of tumor grades and risk groups, with a favorable risk-benefit profile that supports the currently enrolling Phase 3 SIGMA study.

About the SIGMA (G203) Study
SIGMA is a pivotal Phase 3 study that will evaluate safusidenib compared to placebo as a maintenance therapy after standard-of-care in IDH1-mutant astrocytoma with high-risk features. The pivotal portion of the study will enroll approximately 300 patients. Data is anticipated to be available in 2029.

A separate, exploratory, non-pivotal cohort will evaluate safusidenib in participants with grade 3 IDH1-mutant oligodendroglioma who have not yet received chemotherapy or radiotherapy. The primary endpoint is objective response rate. This cohort is expected to enroll approximately 40 patients. Data is anticipated to be available in 2027.

(Press release, Nuvation Bio, MAY 4, 2026, View Source [SID1234665060])

Krystal Biotech Announces First Quarter 2026 Financial and Operating Results

On May 4, 2026 Krystal Biotech, Inc. (the "Company") (NASDAQ: KRYS) reported financial results for the first quarter ending March 31, 2026 and provided a business update.

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"Following a successful 2025, we are entering 2026 with strong momentum, including two potential registrational study readouts and continued global expansion for VYJUVEK," said Krish S. Krishnan, Chairman and Chief Executive Officer of Krystal Biotech. "With three pipeline products receiving platform designation, each development milestone strengthens the regulatory dataset, which could accelerate future programs and potentially reduce development risk. This compounding advantage underscores the value of the platform model we have been building since day one."

VYJUVEK (beremagene geperpavec-svdt, or B-VEC)
for the Treatment of Dystrophic Epidermolysis Bullosa (DEB)

The Company recorded $116.4 million in VYJUVEK net product revenue for the first quarter of 2026, an increase of 32% compared to the prior year first quarter. Gross margin for the first quarter of 2026 was 95%.

In the United States, the Company has secured over 695 reimbursement approvals for VYJUVEK and continues to broaden the prescriber base across the country, with over 60 new prescribers in the first quarter of 2026 and over 570 unique prescribers since launch. The Company has also launched patient support initiatives that leverage the recent VYJUVEK label update and increased administration flexibility to help DEB patients and their families conveniently integrate VYJUVEK into lifelong wound healing routines as their standard of care.

Overseas, the Company estimates that over 140 patients in Germany, France and Japan have been prescribed VYJUVEK. Pricing discussions with German and French reimbursement authorities are ongoing. The Company expects negotiations to continue until at least 2H 2026 in Germany and 2027 in France. The Company is also advancing pricing discussions with reimbursement authorities in Italy to enable a potential launch in 2H 2026 and recently initiated pricing discussions with Spanish reimbursement authorities. Based on initial interactions with Spanish authorities, the Company now expects to launch in Spain in 2H 2026. The timing of launch in other European jurisdictions will depend on the cadence and outcomes of regulatory interactions and pricing negotiations.

Ophthalmology

Two registrational readouts anticipated in 2026

KB803 for the treatment and prevention of corneal abrasions in DEB patients

The Company’s registrational, intra-patient, double-blind, decentralized, placebo-controlled study (IOLITE) with crossover design evaluating KB803 for the treatment and prevention of corneal abrasions in DEB patients is now fully enrolled. A total of 16 patients have been enrolled in the study. The primary efficacy endpoint of IOLITE will be the change in the average number of days per month with corneal abrasion symptoms while receiving KB803 versus placebo. The Company estimates that, as enrolled, IOLITE has at least 90% power to detect an effect size of at least 25% reduction in symptom days, allowing for a dropout rate up to 20%. Powering assumptions are based on the average symptomatic days per month and standard deviation data from subjects enrolled in the natural history study who would be eligible for IOLITE. The Company expects to report top-line results in 4Q 2026. Details about the study can be found at www.clinicaltrials.gov under NCT identifier: NCT07016750.

KB801 for the treatment of neurotrophic keratitis (NK)

The Company continues to enroll in EMERALD-1, the Company’s registrational, 1:1 randomized, double-masked, multicenter, placebo-controlled study evaluating KB801 for the treatment of NK. The Company expects to complete full enrollment of 60 patients in EMERALD-1 and announce data before year end. Details about the study can be found at www.clinicaltrials.gov under NCT identifier: NCT06999733.

Respiratory

KB407 for the treatment of cystic fibrosis (CF)

In April, the United States Food and Drug Administration (FDA) granted platform technology designation to the genetically modified, non-replicating herpes simplex virus type 1 viral vector used in KB407, providing the program with the same potential development and manufacturing efficiencies previously granted to KB801. Potential benefits of the designation include shortening of preclinical and chemistry, manufacturing, and controls (CMC) review cycles during development for follow-on products, creating a compounding regulatory advantage.

Based on interactions with the FDA, the Company is initiating an open label, single-arm study to evaluate safety of repeat dose KB407 for 24 weeks in five patients with CF who are ineligible for, do not tolerate, or do not benefit from modulator therapy. Dosing is expected to start later this month. Details of the study can be found at www.clinicaltrials.gov under NCT identifier: NCT05504837. The Company expects to complete enrollment in 2Q 2026 and report results before year end.

Concurrently, the Company is working closely with the FDA and the Cystic Fibrosis Foundation (CFF) on an innovative registrational study design and statistical analysis plan that explores using prospectively collected natural history data from the CFF to supplement placebo control data for evaluation of KB407 treatment effect. The Company will share the design and associated statistical analysis of the registrational study following alignment with the FDA, which is anticipated in 2H 2026, and expects to initiate the registrational study in 2027.

Previously, in January, the Company announced the successful delivery and expression of wild-type cystic fibrosis transmembrane conductance regulator protein in the lungs of patients with CF treated with KB407.

KB408 for the treatment of alpha-1 antitrypsin deficiency (AATD) lung disease

The Company continues to enroll in repeat dose Cohort 2B of SERPENTINE-1, the Company’s open label dose escalation study evaluating KB408 in adult patients with AATD with a Pi*ZZ or a Pi*ZNull genotype and expects to report interim data for this cohort in 2026. Cohort 2B is designed to evaluate the safety and tolerability of repeat KB408 dosing at the same dose level that was previously shown to safely deliver SERPINA1 to the lungs of AATD patients after a single dose. Details of the study can be found at www.clinicaltrials.gov under NCT identifier NCT06049082.

Dermatology

KB111 for the treatment of Hailey-Hailey disease (HHD)

In April, the FDA also granted platform technology designation to the genetically modified, non-replicating herpes simplex virus type 1 viral vector used in KB111, providing the program with the same regulatory efficiencies available for KB801 and KB407. The Company is developing an HHD-specific severity scale necessary for the clinical evaluation of KB111 and expects to complete scale development and validation in 1H 2026. Later this month, the Company also expects to initiate HALITE-1, an open-label study evaluating the safety of repeat dose KB111, administered once weekly for 12 weeks, in approximately seven patients with HHD. The Company expects to report HALITE-1 study results in 2H 2026. The Company also plans to submit the results from HALITE-1 along with the registrational study design for discussions with the FDA in 2H 2026 to enable a potential registrational study start in 2027.

Oncology

Inhaled KB707 for the treatment of non-small cell lung cancer (NSCLC)

The Company is enrolling patients with advanced NSCLC in a dose expansion cohort of KYANITE-1 evaluating inhaled KB707 in combination with chemotherapy. KYANITE-1 is a Phase 1/2 open label, multi-center, dose escalation and expansion study evaluating inhaled KB707, either as monotherapy or in combination, in patients with locally advanced or metastatic solid tumors of the lung. The Company expects to report interim efficacy data and potential registrational study plans later this year. Details of the study can be found at www.clinicaltrials.gov under NCT identifier NCT06228326.

Intratumoral KB707 for the treatment of injectable solid tumors

The Company continues to follow patients previously enrolled in OPAL-1, the Company’s Phase 1/2 open label, multi-center, dose escalation and expansion study evaluating intratumoral KB707 in patients with locally advanced or metastatic solid tumor malignancies. The Company will update development plans for intratumoral KB707 as additional safety and efficacy data are collected from the study. Details of the study can be found at www.clinicaltrials.gov under NCT identifier NCT05970497.

Aesthetics

KB304 for the treatment of wrinkles of the décolleté

Jeune Aesthetics, Inc., a wholly owned subsidiary of the Company, expects to initiate a Phase 2 study of its lead program KB304 in 2027.

Financial Results for the Three Months Ended March 31, 2026:

Product revenue, net totaled $116.4 million and $88.2 million for the three months ended March 31, 2026 and March 31, 2025, respectively.
Cost of goods sold totaled $6.3 million and $5.0 million for the three months ended March 31, 2026 and March 31, 2025, respectively.
Research and development expenses for the three months ended March 31, 2026 were $15.3 million, inclusive of $2.2 million of stock-based compensation, compared to $14.3 million, inclusive of stock-based compensation of $2.5 million for the three months ended March 31, 2025.
Selling, general, and administrative expenses for the three months ended March 31, 2026 were $41.0 million, inclusive of stock-based compensation of $11.4 million, compared to $32.6 million, inclusive of stock-based compensation of $11.0 million, for the three months ended March 31, 2025.
Net income for the three months ended March 31, 2026 was $55.9 million, or $1.91 per common share (basic) and $1.83 per common share (diluted). Net income for the three months ended March 31, 2025 was $35.7 million, or $1.24 per common share (basic) and $1.20 per common share (diluted).
For additional information on the Company’s financial results for the three months ended March 31, 2026, please refer to the Form 10-Q filed with the SEC.
Financial Guidance

($ in millions) FY 2026 Guidance
Non-GAAP Research and Development ("R&D") and Selling, General and Administrative ("SG&A") expense(1) $175.0 – $195.0
(1) Refer to Non-GAAP Financial Measures section below for additional information. Non-GAAP combined R&D and SG&A expense guidance does not include stock-based compensation as we are currently unable to confidently estimate Full Year 2026 stock-based compensation expense. As such, we have not provided a reconciliation from forecasted non-GAAP to forecasted GAAP combined R&D and SG&A Expense in the above. This could materially affect the calculation of forward-looking GAAP combined R&D and SG&A Expense as it is inherently uncertain.

Conference Call

The Company will host an investor webcast on May 4, 2026, at 8:30 am ET.

Investors and the general public can access the live webcast at:
View Source

For those unable to listen to the live conference call, a replay will be available for 30 days on the Investors section of the Company’s website at www.krystalbio.com.

About VYJUVEK

VYJUVEK is a non-invasive, topical, redosable genetic medicine designed to deliver two copies of the COL7A1 gene when applied directly to DEB wounds. VYJUVEK was designed to treat DEB at the molecular level by providing the patient’s skin cells the template to make normal COL7 protein, thereby addressing the fundamental disease-causing mechanism. VYJUVEK is approved in the United States, Europe, and Japan.

U.S. INDICATION

VYJUVEK is a herpes-simplex virus type 1 (HSV-1) vector-based gene therapy indicated for the treatment of wounds in adult and pediatric patients with dystrophic epidermolysis bullosa with mutation(s) in the collagen type VII alpha 1 chain (COL7A1) gene.

IMPORTANT SAFETY INFORMATION

Adverse Reactions

The most common adverse drug reactions (incidence >5%) were itching, chills, redness, rash, cough, and runny nose. These are not all the possible side effects with VYJUVEK. Call your healthcare provider for medical advice about side effects.

To report SUSPECTED ADVERSE REACTIONS, contact Krystal Biotech, Inc. at 1-844-557-9782 or FDA at 1-800-FDA-1088 or View Source

Contraindications

None.

Warnings and Precautions

VYJUVEK gel may be applied by a healthcare provider, a caregiver, or the patient.

After treatment, patients and caregivers should be careful not to touch treated wounds and dressings until the next dressing change.

Wash hands and wear protective gloves when changing wound dressings. Disinfect bandages from the first dressing change with a virucidal agent, and dispose of the disinfected bandages in a separate sealed plastic bag in household waste. Dispose of the subsequent used dressings in a sealed plastic bag in household waste.

Patients should avoid touching or scratching wound sites or wound dressings.

In the event of an accidental exposure flush with clean water for at least 15 minutes.

For more information, see full U.S. Prescribing Information.

(Press release, Krystal Biotech, MAY 4, 2026, View Source [SID1234665059])