* Pumitamig plus docetaxel demonstrated encouraging responses in squamous and

    non-squamous non-small cell lung cancer across PD-L1 expression levels with
    a confirmed objective response rate of 36.7% following progression on or
    after immunotherapy plus chemotherapy
  * An early median progression-free survival of 6.9 months was observed
  * Significant unmet need remains for patients who have progressed on an

immunotherapy-containing regimen, with the average progression-free survival below 4 months for standard of care docetaxel
* Data represent the third global Phase 2 dataset for pumitamig in lung cancer

    and reinforce its potential to improve outcomes over current standards of
    care

MAINZ, Germany, and PRINCETON, USA, October 25, 2026 - BioNTech SE (https://protect.checkpoint.com/v2/r01/___https:/www.biontech.com/___.YzJ1Om1ib2
90aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM0NGY3ODY1N2M3YmIxNm
Q5ZDU1OTI1NmMzNTE6Nzo4NTEyOmJmMGYzOWIwMjFkZDE5N2RlNGVmMDBiY2Y3ODNiMWFmZjZhMDdlN2
NkMzIxNTNiOGMxZGZhZTVjMmNiNjQ4ZTk6cDpGOkY) (Nasdaq: BNTX, "BioNTech") and Bristol Myers Squibb Company (https://protect.checkpoint.com/v2/r01/___https:/www.globenewswire.com/Tracker?d
ata=cCTfSgxOJ58Y7n3wJQwx0yPsgdV7lO_nXH0arXH5sgcT-
MCcOTK99OaoTbaPVCVrMR6HGJMyu1tpMQoMsBXnUaQfanMfTyfoaxIruCIgAzg=___.YzJ1Om1ib290a
GhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM0NGY3ODY1N2M3YmIxNmQ5Z
DU1OTI1NmMzNTE6Nzo4ZTY1OjIzYjUxNzc0MjU0YTVjNTY4NzkyZDE2OGNhNDA3M2EzN2Y5Y2FhOWZkN
jU5MDAwZTk2NTk1MzBhYWUwZWRhY2Q6cDpGOkY) (NYSE: BMY, "BMS") today announced first
data from the global Phase 2 ROSETTA Lung-107 clinical trial (NCT06841055 (https://clinicaltrials.gov/study/NCT06841055)) evaluating pumitamig, an investigational PD-L1xVEGF-A bispecific immunomodulator (BNT327/BMS986545), in combination with docetaxel in patients with metastatic non-small cell lung cancer ("NSCLC") whose disease progressed on or after first-line immunotherapy plus chemotherapy.
The data showed encouraging antitumor activity, with responses observed in both squamous and non-squamous NSCLC and across PD-L1 expression levels, together with a manageable safety profile consistent with prior global datasets for pumitamig. The data were presented today in a late-breaking rapid oral presentation (abstract #LBA76 (https://cslide.ctimeetingtech.com/esmo2026/attendee/confcal/session)) at the European Society for Medical Oncology ("ESMO") Congress 2026 in Madrid, Spain.
"Despite meaningful advances in first-line treatment, outcomes remain poor for the many patients with non-small cell lung cancer whose disease progresses after
immunotherapy plus chemotherapy, a setting where docetaxel has remained the standard of care for years,"(1) said Byoung Chul Cho, M.D., Ph.D., Trial Investigator and Professor of Medical Oncology at Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea. "These first data from
ROSETTA Lung-107 show encouraging response rates and progression-free survival across PD-L1 expression levels and histology, suggesting that pumitamig may help
re-engage antitumor immunity in patients who have progressed on prior immunotherapy plus chemotherapy. These findings support continued investigation of pumitamig in this population with high unmet need."
ROSETTA Lung-107 is evaluating pumitamig 1400 mg in combination with docetaxel every three weeks. The July 10, 2026, data cut-off included 50 patients with a median follow-up of 12.2 weeks, and 33 patients remained on treatment. Among 30
efficacy-evaluable patients, pumitamig plus docetaxel showed a confirmed objective response rate ("cORR") of 36.7% with a disease control rate ("DCR") of
90.0%. Responses were observed across PD-L1 expression levels (cORR: 42.9% TPS ?
1%; 33.3% TPS 1-49%; 40.0% TPS >= 50%) and histologies (cORR: 57.1% squamous; 30.4% non-squamous), with DCRs above 80% in all subgroups. Median time to response was 1.4 months. In the overall treated population (n=50), median progression-free survival ("PFS") was 6.9 months (95% CI: 4.2 - not reached), with a six-month PFS rate of 63.3%. Historically, standard-of-care docetaxel has
delivered a median PFS of approximately 3.6 or 3.9 months for non-squamous and squamous metastatic NSCLC patients, respectively, following prior immunotherapy plus chemotherapy.(1)
"Our ambition is to improve outcomes for patients across the full spectrum of lung cancer, spanning disease subtypes, stages and lines of therapy," said Prof.
Özlem Türeci, M.D., Co-Founder and Chief Medical Officer at BioNTech. "These encouraging results for pumitamig plus docetaxel extend the clinical evidence to
patients whose disease has progressed after immunotherapy plus chemotherapy, a setting in which treatment options remain limited. Together with our findings in
first-line NSCLC and extensive-stage small cell lung cancer, they support our strategy to develop pumitamig across a broad range of lung cancer settings, including those with particularly high unmet medical need."
"This is the third global Phase 2 dataset to show consistent activity for pumitamig in lung cancer across PD-L1 expression levels, and it extends our evidence into a second-line setting where current options fall short," said Cristian Massacesi, Executive Vice President, Chief Medical Officer and Head of Development at Bristol Myers Squibb. "Together with BioNTech, we are advancing one of the broadest development programs in the class as we continue to build the growing body of clinical evidence for pumitamig across multiple types and treatment lines of lung cancer, with four ongoing global Phase 3 trials, and we look forward to defining the path forward for pumitamig in second-line NSCLC."
Across 50 patients in the safety evaluation, pumitamig plus chemotherapy showed a manageable safety profile, with no new safety signals. Pumitamig treatment- related adverse events ("TRAEs") of any grade were reported in 52.0% of patients
and grade >= 3 TRAEs in 18.0%, leading to treatment discontinuation in four (8.0%) patients. Immune- related AEs occurred in 11 (22.0%) patients and grade >=
3 immune- related AEs in five (10.0%) patients. VEGF-related events were reported in 13 (26.0%) patients; grade 3 events were rare (two patients, 4.0%),
with no grade 4 or 5 events. Bleeding events occurred in eight (16.0%) patients and were limited to grade 1 or 2 severity. There were no pumitamig-related deaths or dose-limiting toxicities ("DLTs").
BioNTech and BMS are advancing a broad development plan for pumitamig in multiple cancer types, including lung cancer across disease stages, subgroups and lines of therapy. ROSETTA Lung-107 extends the program into the second-line NSCLC setting, and these data will inform the further development of pumitamig in this underserved patient population.
About ROSETTA Lung-107
The global, open-label, single-arm Phase 2 ROSETTA Lung-107 trial (NCT06841055 (https://clinicaltrials.gov/study/NCT06841055)) is evaluating pumitamig (BNT327/BMS986545) in combination with docetaxel in patients with stage IV squamous or non-squamous NSCLC whose disease progressed following first-line immunotherapy plus chemotherapy, with any level of PD-L1 expression. Patients with prior exposure to anti-VEGF monoclonal antibodies or PD-(L)1xVEGF bispecific antibodies were excluded. In Part 1 (safety run-in), patients received pumitamig 1400 mg or 2000 mg plus docetaxel 75 mg/m² every three weeks (Q3W). In Part 2 (dose expansion), patients received pumitamig 1400 mg plus docetaxel 75 mg/m² Q3W, the dose recommended by the internal review committee based on the totality of evidence from Part 1 and the broader pumitamig lung cancer program. The primary endpoints are dose-limiting toxicities (Part 1
only), safety, and objective response rate ("ORR") per investigator's assessment
(RECIST 1.1). Secondary endpoints include disease control rate ("DCR"), duration
of response ("DOR"), depth of response, time to response, progression-free survival ("PFS"), overall survival ("OS"), pharmacokinetics, and antidrug antibody prevalence. The trial enrolled 59 patients at sites in Australia, the Republic of Korea, Spain, Türkiye, the United Kingdom, and the United States.
About Pumitamig
Pumitamig is an investigational bispecific immunomodulator, jointly developed by
BioNTech and BMS, designed to cooperatively bind to PD-L1 and VEGF-A. It is aimed at restoring the immune system's ability to recognize and destroy tumor cells while simultaneously cutting off the blood and oxygen supply that feeds tumor cells (anti-angiogenesis effect), preventing them from growing and proliferating. By anchoring to PD-L1 receptors on tumor cells, we believe pumitamig localizes VEGF-A blockade within the tumor microenvironment, potentially enhancing antitumor activity while minimizing systemic exposure.
More than 4,000 patients have been treated with pumitamig in clinical trials to date. Seven global Phase 3 trials with registrational potential are currently ongoing, evaluating pumitamig plus chemotherapy compared to standard of care treatments, in first-line small cell lung cancer (ROSETTA Lung-01, NCT06712355 (https://protect.checkpoint.com/v2/r01/___https:/clinicaltrials.gov/study/NCT067
12355___.YzJ1Om1ib290aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM
0NGY3ODY1N2M3YmIxNmQ5ZDU1OTI1NmMzNTE6Nzo0MDA5Ojc3NWZjMTRlMjI0NGMzOGQ3ODM0NDU2ZTU
yOGUwMzNjYTQ1OTRlOGE1MzE0YzMxZWM0NThhNmQ4NGYyZjYzOTc6cDpGOkY)); first-line non- small cell lung cancer (ROSETTA Lung-02, NCT06712316 (https://protect.checkpoint.com/v2/r01/___https:/clinicaltrials.gov/study/NCT067
12316___.YzJ1Om1ib290aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM
0NGY3ODY1N2M3YmIxNmQ5ZDU1OTI1NmMzNTE6NzpkM2QwOjA3MWI4ODFhMGQ3ZDM5OWQzM2FkZjIzY2Y
1NmY3NzRiZGQzNjYxMjkxMGY0YzhhYmFkMTNkOGZlM2ZlZTBmNTg6cDpGOkY)); unresectable
stage III non-small cell lung cancer (ROSETTA Lung-201, NCT07361497 (https://protect.checkpoint.com/v2/r01/___https:/clinicaltrials.gov/study/NCT073
61497___.YzJ1Om1ib290aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM
0NGY3ODY1N2M3YmIxNmQ5ZDU1OTI1NmMzNTE6NzowMDA4OmVhNzUyNjFlZjM2ZTg2M2RkOGU2OWFhNWM
yOWYyOWQ2ODBmYTBkMzI3MmQ4Zjg4MzJkNjk4NjkxOTk4MDI4N2Q6cDpGOkY)); first-line advanced PD-L1 >= 50% non-small cell lung cancer (ROSETTA Lung-202, NCT07361510 (https://protect.checkpoint.com/v2/r01/___https:/clinicaltrials.gov/study/NCT073
61510___.YzJ1Om1ib290aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM
0NGY3ODY1N2M3YmIxNmQ5ZDU1OTI1NmMzNTE6Nzo4YTI1OjExZWFmYmFiMmEyYzYzMzJkOTA0OWU2ZGI
xYWIxODU4MDg3YTg2NTJhZDQ2MWU2ZGViNzk1NmQyODY0Y2NhNTY6cDpGOkY)); first-line triple-negative breast cancer (ROSETTA Breast-01, NCT07173751 (https://protect.checkpoint.com/v2/r01/___https:/clinicaltrials.gov/study/NCT071
73751___.YzJ1Om1ib290aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM
0NGY3ODY1N2M3YmIxNmQ5ZDU1OTI1NmMzNTE6Nzo1YTg2OjM0YTQzNzBmOTdkMGVhMzcyNjg2MDAxZGU
zNmM0MDA0NzRkMWQyODlhYTIxMTEyMzM3OGMwMjQxNzQ2NWM3NDY6cDpGOkY)); first-line microsatellite stable colorectal cancer (ROSETTA CRC-203, NCT07221357 (https://protect.checkpoint.com/v2/r01/___https:/clinicaltrials.gov/study/NCT072
21357___.YzJ1Om1ib290aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM
0NGY3ODY1N2M3YmIxNmQ5ZDU1OTI1NmMzNTE6NzoyOTE0OjYxYjBmOTc1YzllZGFiYWM1ZGQ2NWViMDM
xNmQ1Yzc5OThkZjZjNjg2M2Q1NzY1MmZlNjE1MjAzOTVhMjc2MDU6cDpGOkY)); and first-line gastric cancer (ROSETTA Gastric-204, NCT07221149 (https://protect.checkpoint.com/v2/r01/___https:/clinicaltrials.gov/study/NCT072
21149___.YzJ1Om1ib290aGhlYWx0aDE6YzpvZmZpY2UzNjVfZW1haWxzX2F0dGFjaG1lbnQ6Nzk2NDM
0NGY3ODY1N2M3YmIxNmQ5ZDU1OTI1NmMzNTE6Nzo2MWIxOjQ3NjhjOGEzNWFlMTk2ZjEzNjIwY2U1MGY
wOTVmNDA1YmNiZTU4YWYwYWM3YTdjMDdiNTBhODY1N2Y2MjIwNzI6cDpGOkY)). Pumitamig is also being explored in 10+ novel-novel combination trials with ADCs and other novel modalities, with the aim of expanding its role across tumor types and identifying additional pivotal opportunities.
About NSCLC
Non-small cell lung cancer (NSCLC) covers all epithelial lung cancers other than
small cell lung cancer and includes squamous cell carcinoma, large cell carcinoma, and adenocarcinoma of the lung. It is the most common type of lung cancer, accounting for approximately 85% of cases, and is the leading cause of cancer-related deaths worldwide.(2) Scientific advances have transformed the treatment of NSCLC, improving outcomes for many patients. However, NSCLC remains
an aggressive disease with a poor prognosis and a 5-year survival rate of 18 to 22% in advanced stages.(3) Patients with low levels of PD-L1 expression typically do not respond well to checkpoint inhibitor-based regimens creating a significant unmet need for new treatment options that provide durable responses to a broad range of patients.
About BioNTech
BioNTech is a global next generation biopharmaceutical company pioneering novel investigative therapies for cancer and other serious diseases. In oncology, BioNTech is committed to transforming how cancer is treated. Its ambition is to develop innovative medicines with pan-tumor or synergistic potential to address cancer from multiple angles and across the full continuum of the disease from early- to late-stage. Its growing late-stage oncology pipeline comprises complementary treatment approaches spanning immunomodulators, antibody-drug conjugates, and mRNA cancer immunotherapies. BioNTech has partnered with multiple global and specialized pharmaceutical collaborators leveraging complementary expertise and resources to accelerate innovation and drive progress, including Bristol Myers Squibb, Duality Biologics, Genentech, a member
of the Roche Group, Genmab, MediLink, OncoC4, and Pfizer.
For more information, please visit www.BioNTech.com (http://www.biontech.com).
BioNTech Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the
Private Securities Litigation Reform Act of 1995, as amended, including, but not
limited to, statements concerning: BioNTech's collaboration with Bristol Myers Squibb (BMS); BioNTech and BMS's ability to successfully co-develop and co- commercialize pumitamig (also known as BNT327 or BMS986545), if approved; the rate and degree of market acceptance of pumitamig, if approved; the initiation, timing, progress, and results of BioNTech's research and development programs, including BioNTech's current and future clinical trials, including statements regarding the expected timing of initiation, enrollment, and completion of trials and related preparatory work and the availability of results, and the timing and outcome of applications for regulatory approvals and marketing authorizations, including expectations regarding the potential indications in which pumitamig may be approved, if at all; the targeted timing and number of additional potentially registrational trials, and the registrational potential of any trial BioNTech may initiate; and discussions with regulatory agencies. In
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You should review the risks and uncertainties described under the heading "Risk Factors" in BioNTech's Report on Form 6-K for the period ended June 30, 2026 and
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Bristol Myers Squibb Cautionary Statement Regarding Forward-Looking Statements
This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 regarding, among other things, the research, development and commercialization of pharmaceutical products. All statements that are not statements of historical facts are, or may
be deemed to be, forward-looking statements. Such forward-looking statements are
based on current expectations and projections about Bristol Myers Squibb's future financial results, goals, plans and objectives and involve inherent risks, assumptions and uncertainties, including internal or external factors that could delay, divert or change any of them in the next several years, that are difficult to predict, may be beyond our control and could cause future financial results, goals, plans and objectives to differ materially from those expressed in, or implied by, the statements. These risks, assumptions, uncertainties and other factors include, among others, that the expected benefits of, and opportunities related to the collaboration with BioNTech may not be realized by Bristol Myers Squibb or may take longer to realize than anticipated, that future study results may not be consistent with the results to
date, that pumitamig (also known as BNT327 or BMS986545) alone or in combination
with chemotherapy (such as docetaxel) may not achieve its primary study endpoint
or receive regulatory approval for the indications described in this release in the currently anticipated timeline or at all, any marketing approvals, if granted, may have significant limitations on their use, and, if approved, whether pumitamig alone or in combination with chemotherapy will be commercially
successful. No forward-looking statement can be guaranteed. Forward-looking statements in this press release should be evaluated together with the many risks and uncertainties that affect Bristol Myers Squibb's business and market, particularly those identified in the cautionary statement and risk factors discussion in Bristol Myers Squibb's Annual Report on Form 10-K for the year ended December 31, 2025, as updated by Bristol Myers Squibb's subsequent Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other filings with the Securities and Exchange Commission. The forward-looking statements included in this document are made only as of the date of this document and except as otherwise required by applicable law, Bristol Myers Squibb undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, changed circumstances or otherwise.
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Jasmina Alatovic
Media@biontech.de (mailto:Media@biontech.de)
Investor Relations
Douglas Maffei, PhD
Investors@biontech.de (mailto:Investors@biontech.de)
Bristol Myers Squibb
Media Relations
media@bms.com (mailto:media@bms.com)
Investor Relations
Investor.relations@bms.com (mailto:Investor.relations@bms.com)
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2. Lin Z et al. Medicine (Baltimore). 2025 Jul 25;104(30):e43300.
3. Liu SV et al. Immunotherapy. 2025 Oct;17(14):1005-1013.
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