Nuvation Bio to Present New Subgroup Analyses of Pivotal Data for IBTROZI® (taletrectinib) in Advanced ROS1-Positive Non-Small Cell Lung Cancer at WCLC and ESMO Annual Congresses

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Nuvation Bio (NYSE: NUVB) will present new subgroup analyses from its pivotal Phase 2 TRUST-I and TRUST-II studies of IBTROZI (taletrectinib) in adults with locally advanced or metastatic ROS1-positive non-small cell lung cancer (NSCLC) at the 2026 WCLC in Seoul and the 2026 ESMO Congress in Madrid.

The presentations will examine consistency of efficacy and safety across key subgroups, including patients previously treated with earlier-generation ROS1 inhibitors and after prior entrectinib exposure. According to Nuvation Bio, IBTROZI is an oral, CNS-active, next-generation ROS1 inhibitor, approved by the U.S. FDA on June 11, 2025, and being evaluated in the global TRUST clinical program, which includes multiple Phase 2 and Phase 3 registrational studies in advanced and early-stage ROS1+ NSCLC.

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Analyses of long-term TRUST-I and TRUST-II data will examine consistency of efficacy across key patient subgroups

NEW YORK, Aug. 4, 2026 /PRNewswire/ -- Nuvation Bio Inc. (NYSE: NUVB), a global oncology company focused on tackling some of the toughest challenges in cancer treatment, today announced that new analyses of long-term Phase 2 TRUST-I and TRUST-II data will be presented at the IASLC 2026 World Conference on Lung Cancer (WCLC) taking place September 12–15, 2026, in Seoul, South Korea, and at the European Society of Medical Oncology Congress (ESMO) October 23–27, 2026, in Madrid, Spain. These findings from the pivotal Phase 2 studies will feature the efficacy and safety of IBTROZI^® (taletrectinib) for the treatment of adult patients with locally advanced or metastatic ROS1-positive (ROS1+) non-small cell lung cancer (NSCLC) across key patient subgroups.

"Every patient has a unique treatment journey, and physicians need confidence that a therapy can deliver consistent, long-term benefit across a broad range of patients," said David Hung, M.D., Founder, President and Chief Executive Officer of Nuvation Bio. "At WCLC and ESMO, we look forward to presenting subgroup analyses of our pivotal data, including for patients previously treated with earlier-generation ROS1 inhibitors, that will further underscore the durable clinical benefits of IBTROZI demonstrated in our long-term data and reinforce its potential as a standard of care across all lines of advanced ROS1-positive NSCLC."

Presentations Overview:

WCLC

Title: Taletrectinib Across Key Subgroups in Patients With ROS1+ Non-Small Cell Lung Cancer: Results From TRUST-I and TRUST-II Presenter: Hidetoshi Hayashi, Kindai University Faculty of Medicine, Osaka, Japan Date: Tuesday, September 15, 2026  Session Time: 9:30-11:00 a.m. KST

ESMO

Title: Updated Efficacy and Safety of Taletrectinib in Patients with Advanced ROS1+ Non-Small Cell Lung Cancer (NSCLC) After Prior Entrectinib Exposure: Results from the Global TRUST-II Study Presenter: Maurice Pérol, Department of Medical Oncology, Léon Bérard Cancer Center, Lyon, France Date: Monday, October 26, 2026 Session Time: 12:00-12:45 p.m. CEST

The materials will be made available in the Publications section of Nuvation Bio's website after the presentations. To meet representatives from Nuvation Bio, visit Booth #115 at WCLC and Booth #1080 at ESMO.

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. 

U.S. 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 Nuvation Bio
Nuvation Bio is a global oncology company focused on tackling some of the toughest challenges in cancer treatment with the goal of developing therapies that create a profound, positive impact on patients' lives. Our diverse pipeline includes taletrectinib (IBTROZI^®), a next-generation ROS1 inhibitor; safusidenib, a brain-penetrant IDH1 inhibitor; and an innovative drug-drug conjugate (DDC) program. 

Nuvation Bio was founded in 2018 by biopharma industry veteran David Hung, M.D., who previously founded Medivation, Inc., which brought to patients one of the world's leading prostate cancer medicines. Nuvation Bio has offices in New York, San Francisco, Boston, and Shanghai. For more information, visit www.nuvationbio.com or follow the company on LinkedIn and X (@nuvationbioinc). 

Media and Investor Contacts

Nuvation Bio Investor Contact
JR DeVita
ir@nuvationbio.com

Nuvation Bio Media Contact
Kaitlyn Nealy
media@nuvationbio.com

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SOURCE Nuvation Bio Inc.

FAQ

What is Nuvation Bio (NYSE: NUVB) presenting about IBTROZI at WCLC 2026?

Nuvation Bio will present new subgroup analyses of long-term Phase 2 TRUST-I and TRUST-II data for IBTROZI in advanced ROS1-positive NSCLC. According to Nuvation Bio, these data assess efficacy and safety consistency across key patient subgroups, including those previously treated with earlier-generation ROS1 inhibitors.

When and where will Nuvation Bio present new IBTROZI data at WCLC and ESMO 2026?

According to Nuvation Bio, IBTROZI data will be presented at WCLC on September 15, 2026, 9:30–11:00 a.m. KST in Seoul, and at ESMO on October 26, 2026, 12:00–12:45 p.m. CEST in Madrid, in dedicated scientific sessions.

What is the TRUST clinical program for IBTROZI mentioned by Nuvation Bio (NUVB)?

The TRUST program includes three registrational studies evaluating IBTROZI in ROS1-positive NSCLC. According to Nuvation Bio, TRUST-I and TRUST-II are Phase 2 single-arm trials in advanced disease, while TRUST-IV is a Phase 3 placebo-controlled adjuvant study, with TRUST-III as a confirmatory Phase 3 trial versus crizotinib.

What is IBTROZI (taletrectinib) approved to treat in the United States?

According to Nuvation Bio, IBTROZI is indicated in the U.S. for adult patients with locally advanced or metastatic ROS1-positive non-small cell lung cancer. The FDA approved taletrectinib on June 11, 2025, following Priority Review and Breakthrough Therapy designations for TKI-naive and TKI-pretreated disease.

What key safety risks are associated with IBTROZI (taletrectinib) described by Nuvation Bio?

According to Nuvation Bio, important risks include hepatotoxicity, interstitial lung disease/pneumonitis, QTc interval prolongation, hyperuricemia, myalgia with CPK elevation, skeletal fractures, embryo-fetal toxicity, and photosensitivity. The company reports specific incidence rates, time to onset, and dose modification frequencies for these adverse events in treated patients.

How common is ROS1-positive NSCLC, the target of IBTROZI from Nuvation Bio (NUVB)?

According to Nuvation Bio, more than one million people are diagnosed annually with NSCLC, and about 2% have ROS1-positive disease. The company notes that roughly 35% of newly diagnosed metastatic ROS1-positive patients have brain metastases, and around 50% of previously treated patients develop CNS metastases.