TLDR
- Radiopharm Theranostics stock jumped over 200% after releasing interim Phase 2b clinical trial results
- The RAD 101 imaging agent achieved its primary endpoint in 92% of patients with brain metastases
- RAD 101 showed 92% concordance with MRI scans in detecting brain metastases
- The company is now positioned to move forward with FDA pivotal trials
- Despite today’s surge, RADX stock remains down 5.12% year-to-date and 10.69% over 12 months
Radiopharm Theranostics stock experienced a dramatic surge today, climbing over 200% following the release of interim Phase 2b clinical trial data. The Australian company announced positive results for its RAD 101 imaging agent used in detecting brain metastases.
Radiopharm Theranostics Limited, RADX
The stock saw heavy trading volume as investors reacted to the clinical trial announcement. This jump represents one of the biggest single-day gains for RADX in recent memory.
The interim analysis showed that RAD 101 achieved its primary endpoint in 92% of patients enrolled in the Phase 2b imaging trial. Brain metastases occur when cancer spreads from other parts of the body to the brain.
RAD 101 is an imaging agent designed to help doctors detect these brain metastases. The trial compared RAD 101’s performance against standard MRI scans.
Strong Concordance with MRI Scans
The clinical data showed that RAD 101 demonstrated 92% concordance with MRI imaging. This means the imaging agent agreed with MRI results in 92% of cases when identifying brain metastases.
This level of agreement is important for establishing RAD 101 as a viable diagnostic tool. Doctors currently rely heavily on MRI scans to detect brain metastases in cancer patients.
The positive interim results position Radiopharm Theranostics to move forward with FDA pivotal trials. These trials represent the next step toward potentially gaining regulatory approval for RAD 101.
Pivotal trials are larger studies required by the FDA before a new drug or imaging agent can be approved for market. The company will need to complete these trials successfully to commercialize RAD 101.
Stock Performance Context
Despite today’s massive gain, RADX stock has struggled over the past year. The shares are down 5.12% year-to-date as of this morning before the surge.
Over a 12-month period, the stock had declined 10.69% prior to today’s announcement. These losses now appear substantially reduced following the 200% jump.
The market response suggests investors view the Phase 2b results as a turning point for the company. Clinical trial success often serves as a catalyst for biotech and pharmaceutical stocks.
Radiopharm Theranostics is an Australian company focused on developing radiopharmaceutical products. The company specializes in theranostics, which combines diagnostic imaging with targeted therapy.
The interim analysis represents a snapshot of data collected during the ongoing Phase 2b trial. Final results from the complete trial will provide additional information about RAD 101’s performance.
The company has not announced a specific timeline for completing the full Phase 2b study or launching pivotal trials. The 92% concordance rate with MRI positions RAD 101 as a potential alternative or complementary diagnostic tool for detecting brain metastases.


