On Target · Issue 1•Week Ending July 24, 2026
Radioligand Volume Is Scaling Faster Than Screening
PSMA PET & Theranostics IntelligenceRadioligand Therapy14 primary sources
Editor’s Spotlight
The strongest signal is the convergence of commercial scale and clinical rigor. Telix posted $247 million in Q2 revenue, up 21% year-over-year, with the FDA confirming that Part 1 safety data for TLX591-Tx is sufficient to progress ProstACT Global Phase 3 into Part 2 in the U.S. Novartis’s Pluvicto grew 43% to $651 million in the same quarter. Meanwhile, a peer-reviewed ProstACT SELECT publication, a new PROFILE prognostic score, and new clonal hematopoiesis safety data all point to the same conclusion: as radioligand therapy volumes grow, formal patient-selection and safety-monitoring pathways matter as much as access to the therapy itself.
Story of the Week
Telix reported Q2 2026 group revenue of US$247 million, up 21% year-over-year, with Precision Medicine revenue up 30% year-over-year. During the quarter, the FDA confirmed that Part 1 safety data from the ProstACT Global Phase 3 study of TLX591-Tx is sufficient to enable progression of Part 2 in the U.S., and the FDA and Telix aligned on the Part 2 clinical trial protocol, statistical analysis plan, and ongoing safety monitoring plan. Telix also disclosed rapid enrollment of 338 patients in the BiPASS Phase 3 study evaluating pre-biopsy PSMA PET for initial prostate cancer diagnosis, and dosed the first patient in the Phase 3 LUTEON trial of TLX250-Tx for kidney cancer — broadening its theranostics platform beyond prostate.
Clinical News
A peer-reviewed ProstACT SELECT study published in Cancers confirmed that 68Ga-PSMA-PET imaging reliably identifies patients suited to TLX591-Tx radio-antibody-drug conjugate therapy, reporting a manageable and predictable safety profile and a median radiographic progression-free survival of 8.8 months in evaluable patients.
A new PROFILE prognostic score published in the Journal of Nuclear Medicine combines baseline FDG PET/CT and PSMA PET/CT findings with hemoglobin to help predict outcomes and screen eligibility for Lu-PSMA-617 therapy. The score was internally and externally validated.
A separate Journal of Nuclear Medicine study found clonal hematopoiesis to be highly prevalent and linked to greater hematologic toxicity in patients treated with 177Lu-PSMA-617, with expansion or emergence of DNA-damage-repair clones common during and after therapy.
Business & Industry Intelligence
GE HealthCare and Catholic Health announced a 10-year, approximately $500 million Care Alliance, bringing new MR, CT, and PET systems, expanded nuclear medicine capabilities, and cloud-based Imaging 360 radiology operations tools to more than 40 Catholic Health sites on Long Island.
Novartis reported Pluvicto sales grew 43% at constant currencies to $651 million in Q2 2026, with PSMAddition subgroup data presented at AUA showing a 58% reduction in the risk of PSA progression versus standard of care alone in PSMA-positive mHSPC.
Truist Financial raised its Lantheus price target to $125 from $115 ahead of the planned fourth-quarter 2026 commercial rollout of PYLARIFY TruVu.
Novartis confirmed it discontinued its mid-stage radioligand candidate 177Lu-NeoB for breast cancer and other solid tumors after early clinical data did not support advancement — a reminder that pipeline pruning continues even as Pluvicto scales.
Clinical Trials to Watch
ProstACT Global — the FDA confirmed Part 1 safety data for TLX591-Tx is sufficient to progress Phase 3 to Part 2 in the U.S., with the protocol and statistical plan aligned; the study continues enrolling in Australia, New Zealand, Canada, Turkiye, the U.K., Singapore, and South Korea, and has received approval to begin in China.
PSMAddition — subgroup data show Pluvicto plus standard of care achieved consistent radiographic progression-free survival benefit regardless of disease volume or presentation in PSMA-positive mHSPC.
BiPASS — Telix’s Phase 3 study achieved rapid enrollment of 338 patients evaluating pre-biopsy PSMA PET for initial prostate cancer diagnosis, intended to support U.S., European, and Australian regulatory submissions.
LUTEON — Telix dosed the first patient in this Phase 3 trial of TLX250-Tx, a CAIX-targeted radioligand, for relapsed or recurrent clear cell renal cell carcinoma.
Industry Movers & News in Brief
RadioMedix appointed former Lantheus CEO Brian A. Markison to its board of directors, adding four decades of oncology, diagnostics, and radiopharmaceutical leadership experience as the company executes its growth strategy.
Upcoming events: ASTRO 2026 September 26–30 in Boston; EANM’26 October 17–21 in Vienna; ESMO 2026 October 23–27 in Madrid; and the SNMMI Theranostics Conference November 4–8 in Bethesda, Maryland.
This newsletter is for informational and educational purposes only and does not constitute medical, legal, investment, or reimbursement advice. Readers should consult their own professional advisors for specific guidance.

