Press Releases May 19, 2026 08:30 AM

Lantheus Announces Presentation of Data at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting

Lantheus to present promising radiopharmaceutical data at ASCO 2026 highlighting advancements in cancer treatment

By Derek Hwang
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Lantheus Holdings, Inc., a leading radiopharmaceutical company, announced that it will be presenting new clinical data at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting. The data includes a Phase 1/2 study evaluating LNTH-2403, a novel LRRC15-targeted radiopharmaceutical, in relapsed/refractory osteosarcoma patients, along with real-world use data of their imaging agent piflufolastat F 18 in early-stage prostate cancer. This highlights the company’s ongoing efforts in advancing cancer diagnosis and treatment through radiopharmaceutical solutions.

Lantheus Announces Presentation of Data at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting
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Key Points

  • Lantheus will present Phase 1/2 clinical data on LNTH-2403, a targeted radiopharmaceutical therapy for osteosarcoma at ASCO 2026.
  • Presentation of real-world imaging and treatment pattern data using piflufolastat F 18 in early-stage prostate cancer.
  • The company reinforces its position as a leader in radiopharmaceuticals focused on improving cancer patient outcomes.
  • Impacted sectors: Healthcare, Biotechnology, Pharmaceuticals, Medical Imaging.

BEDFORD, Mass., May 19, 2026 (GLOBE NEWSWIRE) -- Lantheus Holdings, Inc. (the Company) (NASDAQ: LNTH), the leading radiopharmaceutical-focused company committed to enabling clinicians to Find, Fight and Follow disease to deliver better patient outcomes, announced data to be featured at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting, taking place May 29 – June 2, 2026 in Chicago, IL.

Presentation details are as follows:

Date & Time: Monday, June 1
Session Type: Poster

Session Title: Sarcoma
Poster Number: 376b

Title: A phase 1/2, multi-center, open-label study to evaluate the safety, tolerability, pharmacokinetics, radiation dosimetry, and preliminary anti-neoplastic activity of LNTH-2403, a LRRC15-targeted 177lutetium-labeled monoclonal antibody, in patients with relapsed/refractory osteosarcoma.

Presenter: Noah Federman, UCLA Jonsson Comprehensive Cancer Center, UCLA David Geffen School of Medicine, Los Angeles, CA


Session Type: Publication Only

Session Title: Publication Only: Genitourinary Cancer—Prostate, Testicular, and Penile
Title: Real-world use of piflufolastat F 18 and imaging-associated treatment patterns in early-stage prostate cancer.

First Author: Emma Billmyer, The Analysis Group, Boston, MA

Abstract Number: e17126

About Lantheus 
Lantheus is the leading radiopharmaceutical-focused company, delivering life-changing science to enable clinicians to Find, Fight and Follow disease to deliver better patient outcomes. Headquartered in Massachusetts with offices in New Jersey, Canada, Germany, Sweden, Switzerland and the United Kingdom, Lantheus has been providing radiopharmaceutical solutions for 70 years. For more information, visit www.lantheus.com.

Contacts:

Lantheus
Mark Kinarney
Vice President, Investor Relations
978-671-8842
ir@lantheus.com

Melissa Downs
Executive Director, External Communications
646-975-2533
media@lantheus.com


Risks

  • Clinical trial data is preliminary and early phase; future results may not demonstrate efficacy or safety, impacting regulatory approvals and commercial potential.
  • Competition in the oncology and radiopharmaceutical market may limit market share and growth opportunities.
  • Market adoption of new radiopharmaceuticals depends on physician acceptance, reimbursement policies, and healthcare infrastructure, which carry inherent uncertainties.

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