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MELBOURNE, Australia and INDIANAPOLIS, March 16, 2026 /PRNewswire/ — Telix Pharmaceuticals Limited (ASX: TLX, NASDAQ: TLX, “Telix”) today announces the resubmission of a New Drug Application (NDA) to the United States (U.S.) Food and Drug Administration (FDA) for TLX101-Px, (Pixclara®[1], Floretyrosine F 18 or 18F-FET), an investigational PET[2] imaging agent for the characterization of recurrent or progressive glioma (brain cancer) from treatment related changes in both adult and pediatric patients.
Telix has resubmitted the NDA with the additional data requested by the FDA. The Company believes, based on the Type A meeting and ongoing consultation with the FDA, that the additional data and statistical analysis, along with the primary data set provided in the original submission, appropriately addresses the Complete Response Letter[3].
Given the potential to address significant unmet medical need, TLX101-Px has been granted Orphan Drug[4] and Fast Track[5] designations by the FDA. PET imaging with 18F-FET is already included in international clinical practice guidelines for the imaging of gliomas[6], however there is currently no FDA-approved targeted amino acid PET agent for adult and pediatric brain cancer imaging commercially available in the U.S.
Dr. David N. Cade, Telix Group Chief Medical Officer, said, “We appreciate the FDA’s recognition of the critical unmet need to improve the diagnosis and management of glioma, particularly in the post-treatment setting. Our resubmission is supported by an extensive and compelling data set – particularly so for an orphan indication. We are grateful to our global clinical collaborators, who share our commitment to ensuring patients in the U.S. can benefit from this important patient management tool.”
Maggie Haynes, Executive Director, Head for the Cure Foundation, added: “Our community is encouraged by the FDA’s ongoing engagement and guidance to the sponsor and support for the Expanded Access Program for TLX101-Px. We are hopeful of an expedited review, so this important and proven imaging option can become available to those who urgently need it.”
About TLX101-Px
TLX101-Px is a PET imaging agent, which has been granted fast track and orphan drug designations by the FDA as an imaging agent for the characterization of recurrent or progressive glioma from treatment related changes. TLX101-Px targets membrane transport proteins known as LAT1 and LAT2[7]. This enables TLX101-Px to be potentially utilized as a companion diagnostic agent to TLX101-Tx (iodofalan 131I), Telix’s LAT1-targeting glioblastoma (GBM) therapy candidate, currently under investigation in the pivotal IPAX-BrIGHT study[8].
About gliomas in the U.S.
Gliomas are very diffusely infiltrative tumors that affect the surrounding brain tissue. They are the most common form of central nervous system (CNS) neoplasm that originates from glial cells, accounting for approximately 30% of all brain and CNS tumors and 80% of all malignant brain tumors[9]. In the U.S., there are six cases of gliomas diagnosed per 100,000 people every year[10]. GBM is a high-grade glioma and the most common and aggressive form of primary brain cancer, with approximately 22,000 new cases diagnosed annually in the U.S.[11]. The mainstay of treatment for GBM comprises surgical resection, followed by combined radiotherapy and chemotherapy. Despite such treatment, recurrence occurs in almost all patients[12], with an expected survival duration of 12-15 months from diagnosis[13].
About Telix Pharmaceuticals Limited
Telix is a global biopharmaceutical company focused on the development and commercialization of therapeutic and diagnostic radiopharmaceuticals and associated medical technologies, with the goal to address significant unmet medical needs in oncology and rare diseases. With international operations in the United States, United Kingdom, Brazil, Canada, Europe (Belgium and Switzerland), and Japan, Telix is headquartered in Melbourne, Australia. Telix is listed on the Australian Securities Exchange (ASX: TLX) and the Nasdaq Global Select Market (NASDAQ: TLX).
Illuccix® (kit for the preparation of gallium-68 (68Ga) gozetotide injection), Telix’s first generation PSMA-PET imaging agent, has been approved in multiple markets globally. Gozellix® (kit for the preparation of gallium-68 (68Ga) gozetotide injection) has been approved by the U.S. FDA[14]. TLX101-Px and TLX101-Tx have not received marketing authorizations in any jurisdiction.
Visit www.telixpharma.com for further information about Telix, including details of the latest share price, ASX and U.S. Securities and Exchange Commission (SEC) filings, investor and analyst presentations, news releases, event details and other publications that may be of interest. You can also follow Telix on LinkedIn, X and Facebook.
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Telix Investor Relations (Global) Ms. Kyahn Williamson SVP Investor Relations and Corporate |
Telix Investor Relations (U.S.) Ms. Annie Kasparian Director Investor Relations and Corporate |
Telix Investor Relations (Australia) Ms. Charlene Jaw Associate Director Investor |
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This announcement has been authorized for release by the Telix Pharmaceuticals Limited Disclosure Committee on behalf of the Board.
Legal Notices
Cautionary Statement Regarding Forward-Looking Statements.
You should read this announcement together with our risk factors, as disclosed in our most recently filed reports with the Australian Securities Exchange (ASX), U.S. Securities and Exchange Commission (SEC), including our Annual Report on Form 20-F filed with the SEC, or on our website.
The information contained in this announcement is not intended to be an offer for subscription, invitation or recommendation with respect to securities of Telix Pharmaceuticals Limited (Telix) in any jurisdiction, including the United States. The information and opinions contained in this announcement are subject to change without notification. To the maximum extent permitted by law, Telix disclaims any obligation or undertaking to update or revise any information or opinions contained in this announcement, including any forward-looking statements (as referred to below), whether as a result of new information, future developments, a change in expectations or assumptions, or otherwise. No representation or warranty, express or implied, is made in relation to the accuracy or completeness of the information contained or opinions expressed in the course of this announcement.
This announcement may contain forward-looking statements, including within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, that relate to anticipated future events, financial performance, plans, strategies or business developments. Forward-looking statements can generally be identified by the use of words such as “may”, “expect”, “intend”, “plan”, “estimate”, “anticipate”, “believe”, “outlook”, “forecast” and “guidance”, or the negative of these words or other similar terms or expressions. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to differ materially from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Forward-looking statements are based on Telix’s good-faith assumptions as to the financial, market, regulatory and other risks and considerations that exist and affect Telix’s business and operations in the future and there can be no assurance that any of the assumptions will prove to be correct. In the context of Telix’s business, forward-looking statements may include, but are not limited to, statements about: the initiation, timing, progress, completion and results of Telix’s preclinical and clinical trials, and Telix’s research and development programs; Telix’s ability to advance product candidates into, enroll and successfully complete, clinical studies, including multi-national clinical trials; the timing or likelihood of regulatory filings and approvals for Telix’s product candidates, including the planned NDA resubmission for TLX101-Px and the planned BLA resubmission for TLX250-Px, manufacturing activities and product marketing activities; Telix’s sales, marketing and distribution and manufacturing capabilities and strategies; the commercialization of Telix’s product candidates, if or when they have been approved; Telix’s ability to obtain an adequate supply of raw materials at reasonable costs for its products and product candidates; estimates of Telix’s expenses, future revenues and capital requirements; Telix’s financial performance; developments relating to Telix’s competitors and industry; the anticipated impact of U.S. and foreign tariffs and other macroeconomic conditions on Telix’s business; and the pricing and reimbursement of Telix’s product candidates, if and after they have been approved. Telix’s actual results, performance or achievements may be materially different from those which may be expressed or implied by such statements, and the differences may be adverse. Accordingly, you should not place undue reliance on these forward-looking statements.
Trademarks and Trade Names. All trademarks and trade names referenced in this press release are the property of Telix Pharmaceuticals Limited (Telix) or, where applicable, the property of their respective owners. For convenience, trademarks and trade names may appear without the ® or ™ symbols. Such omissions are not intended to indicate any waiver of rights by Telix or the respective owners. Trademark registration status may vary from country to country. Telix does not intend the use or display of any third-party trademarks or trade names to imply any affiliation with, endorsement by, or sponsorship from those third parties.
©2026 Telix Pharmaceuticals Limited. All rights reserved.
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[1] Brand name subject to final regulatory approval. |
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