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Legend Biotech Announces Late-Breaking Oral Presentation at EHA 2026 Showcasing Initial Phase 1 In Vivo CAR-T Data with LB2501 in Non-Hodgkin Lymphoma (NHL)

(Neutral)

Legend Biotech (NASDAQ: LEGN) will present initial Phase 1 data for LB2501, an in vivo CD19/CD20 dual-targeting CAR-T therapy, at EHA 2026 in R/R B-cell NHL.

At dose level 2, ORR was 100% (6/6) with CR rate 83.3% (5/6), all ongoing at cutoff, with dose-dependent in vivo CAR-T expansion and no DLTs, SAEs, deaths or ICANS reported. CRS and infusion reactions were ≤ Grade 2.

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Positive

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Negative

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News Market Reaction – LEGN

+42.22% 4.8x vol
154 alerts
+42.22% Session close to close
+36.2% Peak in 5 hr 47 min
$6.81B Market Cap
4.8x Rel. Volume

In the Jun 2 session, LEGN gained 42.22%, reflecting a significant positive market reaction. Argus tracked a peak move of +36.2% during that session. Our momentum scanner triggered 154 alerts that day, indicating very high trading interest and price volatility. Trading volume was very high at 4.8x the daily average, suggesting strong buying interest.

Data tracked by StockTitan Argus on the day of publication.

Market Context

The stock surged +42.2% in the session following this news. A strong positive reaction aligns with t...
Analysis

The stock surged +42.2% in the session following this news. A strong positive reaction aligns with the clearly favorable LB2501 Phase 1 profile, including ORR of 100% and CR rate of 83.3% at dose level 2, plus no DLTs, SAEs, or ICANS. Historically, however, even positive clinical trial data (average move -2.78% for similar news) did not always sustain gains, so investors would have monitored follow-up data, safety updates, and broader biotech sentiment for durability.

Key Figures

Objective response rate: 100% (6/6) Complete response rate: 83.3% (5/6) Patients treated: 12 patients +5 more
8 metrics
Objective response rate 100% (6/6) Dose level 2 cohort, relapsed/refractory NHL
Complete response rate 83.3% (5/6) Dose level 2 cohort, relapsed/refractory NHL
Patients treated 12 patients Ongoing Phase 1 LB2501 study across two dose levels
Median follow-up 2.2 months (range 2.0–3.8) Dose level 2 efficacy follow-up at data cutoff
CAR-T persistence Up to 116 days CAR-T cells detected in peripheral blood
Infusion-related reactions 75% of patients, ≤ Grade 2 LB2501 Phase 1 safety profile
Cytokine release syndrome 66.7% of patients, ≤ Grade 2 LB2501 Phase 1 safety profile
Dose-limiting toxicities / SAEs / ICANS 0 events reported LB2501 Phase 1 safety results

Previous Clinical trial Reports

1 past event · Latest: Jul 02 (Positive)
Same Type Pattern 1 events
Date Event Sentiment 24h Move Catalyst
Jul 02 Phase 3 survival data Positive -2.8% Positive overall survival results from CARTITUDE-4 multiple myeloma trial.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Positive clinical trial announcements have previously coincided with share price declines.

Recent Company History

Over recent months, Legend Biotech has highlighted strong commercial traction for CARVYKTI®, including Q1 2026 collaboration revenue of $298.4 million and narrowing losses, alongside expanding global availability. Scientific visibility has increased via ASCO 2026 presentations and new advisory talent to guide its cell therapy pipeline. Historically, even clearly positive clinical data, such as the Phase 3 CARTITUDE-4 survival results reported on Jul 02, 2024, coincided with a -2.78% move, indicating that favorable trial updates have not always translated into immediate stock gains.

Key Terms

in vivo, car-t, non-hodgkin lymphoma, objective response rate, +4 more
8 terms
in vivo medical
"represents an important step in advancing in vivo CAR-T approaches"
In vivo describes tests or experiments performed inside a living organism, such as an animal or human, to observe how a drug, device or biological process behaves in a real, functioning body. Investors care because in vivo results reveal safety, effectiveness and possible side effects that lab tests cannot, much like road-testing a prototype car in traffic rather than only on a bench — outcomes can strongly influence regulatory approval, clinical success and a company’s valuation.
car-t medical
"a potential first‑in‑class CD19/CD20 dual‑targeting in vivo CAR-T therapy"
CAR-T is a type of cancer therapy that reprograms a patient’s own immune cells to seek and destroy specific cancer cells, like teaching guard dogs a new scent to track intruders. It matters to investors because CAR-T treatments can command high prices, drive strong revenue for successful developers, and carry regulatory and manufacturing risks that can sharply affect a company’s valuation and long-term growth prospects.
non-hodgkin lymphoma medical
"in vivo CAR-T Data with LB2501 in Non-Hodgkin Lymphoma (NHL)"
A group of cancers that start in the lymphatic system, which is part of the body’s defense network of nodes and vessels; malignant cells multiply in lymph nodes, spleen or blood and can impair immune function. It matters to investors because diagnosis rates, available treatments, and regulatory approvals drive demand for drugs, influence clinical trial outcomes, and can shift revenue, development risk and valuation for companies in biotech, diagnostics and healthcare.
objective response rate medical
"Objective response rate (ORR): 100% (6/6)"
The objective response rate (ORR) is the percentage of patients in a clinical trial whose tumors measurably shrink or disappear according to preset rules. Investors use it as a quick, objective signal of a drug’s ability to produce a clear treatment effect—like counting how many plants visibly respond after applying a new fertilizer—and higher ORR can improve odds of regulatory approval, commercial success, and company valuation.
complete response rate medical
"Complete response rate (CR): 83.3% (5/6)"
Complete response rate is the percentage of patients in a clinical trial whose measurable signs of disease disappear after treatment, as judged by predefined medical tests. For investors, a higher complete response rate is a strong signal that a drug works well in the trial setting, improving chances of regulatory approval and commercial success — like seeing most lightbulbs in a new batch actually turn on before deciding to buy the factory.
cytokine release syndrome medical
"Cytokine release syndrome (CRS) occurred in 66.7% of patients"
An intense immune overreaction in which the body's defense system releases a large surge of signaling proteins, causing fever, low blood pressure, breathing trouble or organ stress; imagine the immune system's alarm going into overdrive and flooding the body with emergency responders. Investors care because this side effect can slow or block regulatory approval, increase clinical trial costs and liabilities, limit how widely a therapy can be used, and therefore affect a drug's market value and sales potential.
immune effector cell-associated neurotoxicity syndrome medical
"No immune effector cell-associated neurotoxicity syndrome (ICANS) was reported"
immune effector cell-associated neurotoxicity syndrome (ICANS) is a brain-related side effect that can occur after treatments that activate powerful immune cells, such as engineered cell therapies. It can cause confusion, speech problems, seizures or coma when the immune response unintentionally harms brain function; think of an overenthusiastic security system that starts damaging the house it’s protecting. Investors care because ICANS affects clinical trial results, regulatory approvals, product labeling, treatment adoption, monitoring costs and potential liability, all of which influence a therapy’s commercial value.
lentiviral vector medical
"TaVec™ platform, which is a proprietary lentiviral vector engineered to enhance"
A lentiviral vector is a laboratory-modified virus used to deliver therapeutic genes into cells, acting like a tiny postal service that inserts new instructions into target cells so they can produce missing or corrected proteins. Investors care because these vectors are a key delivery tool in many gene and cell therapies; their safety, efficiency, manufacturing scalability, and regulatory approval can make or break a treatment’s commercial potential.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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  • Promising Phase 1 data for LB2501, a potential firstinclass CD19/CD20 dualtargeting in vivo CAR-T therapy, as an off-the-shelf, single-infusion treatment for Bcell malignancies
  • An ORR of 100% (6/6) was observed in the dose level 2 cohort, including CR rate of 83.3% (5/6) in patients with relapsed/ refractory NHL
  • Data demonstrate robust in vivo CAR-T expansion without lymphodepleting chemotherapy
  • Favorable safety profile: no DLTs, no SAEs, no ICANS, CRS <Grade 2

BRIDGEWATER, N.J., June 02, 2026 (GLOBE NEWSWIRE) -- Legend Biotech Corporation (NASDAQ: LEGN) (Legend Biotech or the Company), a global leader in cell therapy, today announced that promising preliminary clinical data for LB2501, its investigational in vivo CD19/CD20 dual-targeting CAR-T cell therapy, in patients with relapsed/refractory B-cell non-Hodgkin lymphoma (R/R B-NHL), will be presented during a late-breaking session at the European Hematology Association (EHA) 2026 Congress, taking place June 11-14, 2026, in Stockholm, Sweden.

“The upcoming presentation of Phase 1 LB2501 data in patients with B-cell malignancies represents an important step in advancing in vivo CAR-T approaches,” said Ying Huang, Ph.D., Chief Executive Officer of Legend Biotech. “By generating CAR-T cells directly within the patient, this approach has the potential to simplify treatment delivery and expand access for patients who may not be able to receive traditional CAR-T cell therapies. LB2501 is built on the TaVec™ platform, which is a proprietary lentiviral vector engineered to enhance T-cell specificity, transduction efficiency, and safety, while restricting transduction of non-T cells.”

LB2501: Promising Phase 1 Trial of In Vivo CAR-T Data Demonstrate High Response Rates in B-cell Malignancies

Data from 12 patients across two dose cohorts in an ongoing Phase 1 study evaluating LB2501 in patients with R/R B-NHL provide early clinical evidence supporting the potential of an in vivo CAR-T approach in B-cell malignancies. LB2501 is designed to generate CAR-T cells directly within the patient following a single intravenous infusion, eliminating the need for cell manufacturing and lymphodepletion.

As of April 1, 2026, 12 patients with R/R B-NHL were treated across two dose levels (DL1 and DL2). Additional details will be presented at EHA 2026. Key findings from the abstract include:

Efficacy Results

  • At DL2 (median follow-up for DL2 was 2.2 months [range, 2.0 to 3.8])
    • Objective response rate (ORR): 100% (6/6)
    • Complete response rate (CR): 83.3% (5/6)
    • All responses were ongoing at data cutoff

Pharmacokinetics

  • Dose-dependent in vivo CAR-T expansion observed
  • CAR-T cells detected in peripheral blood for up to 116 days

Safety Results

  • No dose-limiting toxicities (DLTs), serious adverse events (SAEs), or deaths were observed
  • Infusion-related reactions occurred in 75% of patients, all of which were ≤ Grade 2
  • Cytokine release syndrome (CRS) occurred in 66.7% of patients, all of which were ≤ Grade 2
  • No immune effector cell-associated neurotoxicity syndrome (ICANS) was reported
  • Grade ≥3 lentiviral vector-related and CAR-T-related adverse events were limited to decreased lymphocyte count and decreased neutrophil count

EHA Presentation (June 11-14, 2026)

Abstract No.TitleInformation
Abstract #LB5006
Late-Breaking Oral Presentation
First-in-human trial of LB2501, an in vivo CD19/CD20 dual targeting CAR-T therapy, in relapsed/refractory B-Cell NHL

Session ID: s204
Date/Time: Sunday, June 14, 2026, 9:15-10:45 AM CEST
Location: Nobel Hall


ABOUT LB2501
LB2501 is an investigational, potential first-in-class CD19/CD20 dual-targeting in vivo CAR-T therapy designed to generate CAR-T cells directly within the patient following a single intravenous infusion. It is being evaluated in an ongoing Phase 1, open-label study NCT07002112) in patients with relapsed/refractory B-cell malignancies to assess safety, tolerability, and preliminary efficacy.i

ABOUT B-CELL NON-HODGKIN LYMPHOMA
Non-Hodgkin lymphoma (NHL) is a group of cancers that originate in lymphocytes, a type of white blood cell that plays a key role in the body’s immune system.ii B-cell lymphomas account for approximately 85% of NHL cases and arise from abnormal growth of B lymphocytes (B cells), which are responsible for producing antibodies. These malignancies include a range of subtypes that vary in aggressiveness, from slow-growing to highly aggressive disease.iii

ABOUT LEGEND BIOTECH
With over 3,000 employees, Legend Biotech is the largest standalone cell therapy company and a pioneer in treatments that change cancer care forever. Legend Biotech is at the forefront of the CAR-T cell therapy revolution with CARVYKTI®, a one-time treatment for relapsed or refractory multiple myeloma, which it develops and markets with collaborator Johnson & Johnson. Centered in the United States, Legend Biotech is building an end-to-end cell therapy company by expanding its leadership to maximize CARVYKTI’s patient access and therapeutic potential. From this platform, Legend Biotech plans to drive future innovation across its pipeline of cutting-edge cell therapy modalities.

Learn more at https://legendbiotech.com and follow us on X, Instagram, and LinkedIn.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

Statements in this press release about future expectations, plans, and prospects, as well as any other statements regarding matters that are not historical facts, constitute “forward-looking statements” within the meaning of The Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements relating to Legend Biotech’s strategies and objectives, the potential benefits of the proprietary TaVec platform, the Phase 1 clinical trial of LB2501 and the potential benefits of LB2501, including its potential to be first-in-class. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors. Legend Biotech’s expectations could be affected by, among other things, uncertainties involved in the development of new pharmaceutical products; unexpected clinical trial results, including as a result of additional analysis of existing clinical data or unexpected new clinical data; unexpected regulatory actions or delays, including requests for additional safety and/or efficacy data or analysis of data, or government regulation generally; unexpected delays as a result of actions undertaken, or failures to act, by Legend Biotech’s third-party partners; uncertainties arising from challenges to Legend Biotech’s patent or other proprietary intellectual property protection, including the uncertainties involved in the U.S. litigation process; government, industry, and general product pricing and other political pressures; as well as the other factors discussed in the “Risk Factors” section of Legend Biotech’s Annual Report on Form 20-F filed with the Securities and Exchange Commission on March 10, 2026. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in this press release as anticipated, believed, estimated, or expected. Any forward-looking statements contained in this press release speak only as of the date of this press release. Legend Biotech specifically disclaims any obligation to update any forward-looking statement, whether as a result of new information, future events, or otherwise.

INVESTOR CONTACT:
Jessie Yeung
Tel: (732) 956-8271
investor@legendbiotech.com

PRESS CONTACT:
Kim Fox
Tel: (848) 388-8445
media@legendbiotech.com

i ClinicalTrials.Gov. The CD19/​CD20 Dual-Target in Vivo CAR-T Lentiviral Product in the Treatment of Relapsed/​Refractory B-cell Malignancies. https://clinicaltrials.gov/study/NCT07002112. Accessed May 2026
ii American Cancer Society. “What Is Non-Hodgkin Lymphoma?”. Available at: https://www.cancer.org/cancer/types/non-hodgkin-lymphoma/about/what-is-non-hodgkin-lymphoma.html.Accessed May 2026.
iii American Cancer Society. “Types of B-cell Lymphoma.” Available at: https://www.cancer.org/cancer/types/non-hodgkin-lymphoma/about/b-cell-lymphoma.html.Accessed May 2026.


FAQ

What did Legend Biotech (NASDAQ: LEGN) announce about LB2501 at EHA 2026?

Legend Biotech announced a late-breaking oral presentation of initial Phase 1 data for LB2501 in relapsed/refractory B-cell non-Hodgkin lymphoma. According to Legend Biotech, the in vivo CD19/CD20 dual-targeting CAR-T showed high response rates and dose-dependent expansion after a single intravenous infusion.

What were the key efficacy results for LB2501 in Phase 1 non-Hodgkin lymphoma data for LEGN?

LB2501 showed an objective response rate of 100% (6/6) and complete response rate of 83.3% (5/6) at dose level 2. According to Legend Biotech, all responses were ongoing at the April 1, 2026 data cutoff, with median follow-up of 2.2 months.

How was the safety profile of LB2501 described in Legend Biotech’s Phase 1 NHL study?

According to Legend Biotech, no dose-limiting toxicities, serious adverse events, deaths or ICANS were observed with LB2501. Infusion-related reactions occurred in 75% and cytokine release syndrome in 66.7% of patients, all ≤ Grade 2, with higher-grade events limited to blood count decreases.

What pharmacokinetic findings were reported for LB2501 in Legend Biotech’s in vivo CAR-T trial?

Legend Biotech reported dose-dependent in vivo CAR-T expansion after a single LB2501 infusion, with CAR-T cells detected in peripheral blood for up to 116 days. These early pharmacokinetic data support the concept of generating CAR-T cells directly in patients without ex vivo manufacturing.

When and where is Legend Biotech presenting the LB2501 Phase 1 data at EHA 2026?

Legend Biotech will present LB2501 data in a late-breaking oral session at EHA 2026 in Stockholm. According to the company, Abstract #LB5006 is scheduled for Sunday, June 14, 2026, 9:15–10:45 AM CEST in Nobel Hall, Session ID s204.

What makes LB2501 a potential first-in-class in vivo CAR-T therapy for LEGN investors?

LB2501 is described as a potential first-in-class, CD19/CD20 dual-targeting in vivo CAR-T built on the TaVec lentiviral platform. According to Legend Biotech, it aims to generate CAR-T cells in patients from a single off-the-shelf infusion without lymphodepleting chemotherapy.