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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 6-K
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934
For the Month of April 2025
Commission File Number: 001-41621
RADIOPHARM THERANOSTICS LIMITED
(Name of Registrant)
Level 3, 62 Lygon Street, Carlton South, Victoria, 3053, Australia
(Address of principal executive office)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F ☒ Form 40-F ☐
Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.
Yes ☐ No ☒
If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-Radiopharm Theranostics Limited (the “Company”) published one announcement (the “Public Notice”) to the Australian Securities Exchange on April 28, 2025 titled:
RADIOPHARM THERANOSTICS LIMITED
EXPLANATORY NOTE
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“First patient dosed in Phase IIb imaging for Brain Mets” |
A copy of the Public Notice is attached as an exhibit to this report on Form 6-K.
This report on Form 6-K (including the exhibit hereto) shall not be deemed to be “filed” for purposes of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.
EXHIBITS
| Exhibit Number | Description | |
| 99.1 | First patient dosed in Phase IIb imaging for Brain Mets |
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| RADIOPHARM THERANOSTICS LIMITED | ||
| Date: April 28, 2025 | By: | /s/ Phillip Hains |
| Phillip Hains | ||
| Company Secretary | ||
3
Exhibit 99.1
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ASX ANNOUNCEMENT 28 APRIL 2025 |
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Radiopharm Theranostics Doses First Patient with 18F-RAD101 in
U.S. Phase 2b Imaging Study of Brain Metastasis
Phase 2b study evaluating diagnostic performance of 18F-RAD101 for suspected recurrent
brain metastases from solid tumors of different origins
Underscores Radiopharm’s commitment to developing transformative oncology
radiopharmaceuticals
Sydney, Australia – 28 April 2025 – Radiopharm Theranostics (ASX:RAD, Nasdaq: RADX, “Radiopharm” or the “Company”), a clinical-stage biopharmaceutical company focused on developing innovative oncology radiopharmaceuticals for areas of high unmet medical need, today announced the dosing of the first patient in its U.S. Phase 2b imaging study of 18F-RAD101 in suspected recurrent brain metastasis.
The U.S. multicenter, open-label, single arm Phase 2b clinical trial1 is evaluating the diagnostic performance of 18F-RAD101 in 30 individuals with confirmed recurrent brain metastases from solid tumors of different origins. The primary objective of the study is concordance between 18F-RAD101 positive lesions and those seen in conventional imaging (MRI with gadolinium) in participants with suspected recurrent brain metastases.
RAD101 is a novel imaging small molecule that targets fatty acid synthase (FASN), a multi-enzyme protein that catalyses fatty acid synthesis and is overexpressed in many solid tumors, including cerebral metastasis. Disruption of FASN activity allows for the accurate detection of cancer cells, representing a strongly viable target for the imaging of brain metastasis. Positive data from the Imperial College of London’s Phase 2a imaging trial of 18F-RAD101 in patients with brain metastases showed significant tumor uptake that was consistent with and independent from the tumor of origin.2
“We are proud to pioneer the first U.S. clinical trial of RAD101,” said Harshad R. Kulkarni, MD, Chief Medical Advisor at BAMF Health and Principal Investigator of this Phase 2b study. “This marks an important step toward improving diagnostic precision and enabling more evidence-based, individualized treatment decisions for patients with brain metastases following stereotactic radiosurgery.”
“This trial is an excellent illustration of BAMF Health’s clinical trials platform in action,” added BAMF Health’s Director of Clinical Trials. “Our Radiopharmacy is producing the imaging agent on-site, our clinic team is caring for the patient and providing the best image in the world, and our clinical trials team expertly coordinates it all. BAMF’s facility and team were built to do trials just like this.”
“Current standard of care imaging is less sensitive in discriminating between tumor recurrence and radiation necrosis in patients with brain metastasis who have received anticancer treatments, including radiation,” said Riccardo Canevari, CEO and Managing Director of Radiopharm Theranostics Ltd. “18F-RAD101 has the strong potential to improve diagnostic accuracy of brain metastases, and holds promise for discriminating between treatment effect and true progression in the more than 300,000 patients diagnosed with brain metastasis each year in the U.S. alone. We look forward to advancing this clinical trial and to reporting topline data in the second half of 2025.”
| 1 | https://www.clinicaltrials.gov/study/NCT06777433 |
| 2 | S.Islam et. Al., EJNMMI; 07 February 2025. https://doi.org/10.1007/s00259-025-07118-0 |
Radiopharm Theranostics Limited
Suite 1, Level 3, 62 Lygon Street, Carlton South VIC 3053 Australia
ABN: 57 647 877 889
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ASX ANNOUNCEMENT 28 APRIL 2025 |
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About Radiopharm Theranostics
Radiopharm Theranostics is a clinical stage radiotherapeutics company developing a world-class platform of innovative radiopharmaceutical products for diagnostic and therapeutic applications in areas of high unmet medical need. Radiopharm is listed on ASX (RAD) and on NASDAQ (RADX). The company has a pipeline of distinct and highly differentiated platform technologies spanning peptides, small molecules and monoclonal antibodies for use in cancer. The clinical program includes one Phase 2 and three Phase 1 trials in a variety of solid tumor cancers including lung, breast, and brain. Learn more at radiopharmtheranostics.com.
About BAMF Health
BAMF Health is the world’s first vertically integrated platform for intelligence-based precision medicine. Headquartered in Grand Rapids, Michigan, BAMF Health employs the most advanced theranostic imaging technology to detect and treat cancer and other diseases and conduct advanced clinical trials. Our overriding mission is to empower patients to become people again. With a team of data scientists, researchers, software engineers, and clinicians —all working in lockstep—we’re making good on it. To learn more about BAMF Health, visit www.bamfhealth.com.
Authorized on behalf of the Radiopharm Theranostics Board of Directors by Executive Chairman Paul Hopper.
For more information:
Investors:
Riccardo Canevari
CEO & Managing Director
Radiopharm Theranostics
P: +1 862 309 0293
E: rc@radiopharmtheranostics.com
Andrew Dymon
Precision AQ (formerly Stern IR)
andrew.dymon@precisionaq.com
Media:
Matt Wright
NWR Communications
P: +61 451 896 420
E: matt@nwrcommunications.com.au
Follow Radiopharm Theranostics:
Website – https://radiopharmtheranostics.com/
Twitter – https://twitter.com/TeamRadiopharm
Linked In – https://www.linkedin.com/company/radiopharm-theranostics/
InvestorHub – https://investorhub.radiopharmtheranostics.com/
Radiopharm Theranostics
Limited
Suite 1, Level 3, 62 Lygon Street, Carlton South VIC 3053 Australia
ABN: 57 647 877 889