VISION manuscript shows that177Lu-PSMA-617 plus standard of care (SOC) significantly improved overall survival and radiographic progression-free survival for patients with metastatic castration-resistant prostate cancer (mCRPC) compared to SOC alone1
US Food and Drug Administration (FDA) granted Breakthrough Therapy designation to 177Lu-PSMA-617; regulatory submissions to US and EU Health Authorities on track for 2H21
Novartis is a global leader in radioligand therapy, uniquely positioned with broad commercial experience, established manufacturing and supply chain capabilities, and extensive development expertise.
Basel, June 23, 2021 — VISION data published today in The New England Journal of Medicine (NEJM) shows that 177Lu-PSMA-617 plus standard of care (SOC) significantly improved both overall survival (HR = 0.62 [95% CI: 0.52−0.74]; P<0.001; median 15.3 vs 11.3 months) and imaging-based progression-free survival (HR = 0.40 [99.2% CI: 0.29−0.57]; P<0.001; median, 8.7 vs 3.4 months) versus SOC alone in patients with progressive PSMA-positive mCRPC1. VISION data were first presented at the 2021 American Society of Clinical Oncology (ASCO) Annual Meeting on June 6 (see media release).
“We are proud of these data showing that 177Lu-PSMA-617 can significantly shrink tumors and extend life for patients with prostate cancer, who have been heavily pre-treated and currently have limited treatment options,” said Jeff Legos, Global Head of Oncology Development, Novartis. “We believe that radioligand therapy with 177Lu-PSMA-617 has great potential to improve outcomes in advanced prostate cancer and have already started two new Phase III studies in earlier lines of treatment.”
Other data highlighted in the publication and ASCO presentation:
Median time to first symptomatic skeletal event or death was 11.5 months in the 177Lu-PSMA-617 plus SOC arm versus 6.8 months in the SOC only arm (P<0.001; α=0.05; HR = 0.50 [95% CI: 0.40, 0.62])1
Overall response rate in patients with measurable or non-measurable disease at baseline was 29.8% partial or complete response in the 177Lu-PSMA-617 plus SOC arm compared to 1.7% partial response in the SOC only arm (two-sided p-value: <0.001)1
The incidence of grade ≥3 treatment-emergent adverse effects was 52.7% in the 177Lu-PSMA-617 plus SOC arm vs 38.0% in the SOC only arm1
Serious drug-related treatment emergent adverse events occurred in 9.3% of patients in the 177Lu-PSMA-617 plus SOC arm compared to 2.4% in the SOC only arm2
Two additional studies with 177Lu-PSMA-617 radioligand therapy in earlier lines of treatment for metastatic prostate cancer are ongoing, investigating potential clinical utility in the mCRPC pre-taxane setting (PSMAfore) and in the metastatic hormone-sensitive setting (PSMAddition). Novartis is also evaluating opportunities to investigate 177Lu-PSMA-617 radioligand therapy in earlier stages of prostate cancer.
About 177Lu-PSMA-617 177Lu-PSMA-617 is an investigational PSMA-targeted radioligand therapy for metastatic castration-resistant prostate cancer. It is a type of precision cancer treatment combining a targeting compound (ligand) with a therapeutic radioisotope (a radioactive particle)3-5. After administration into the bloodstream, 177Lu-PSMA-617 binds to prostate cancer cells that express PSMA6, a transmembrane protein, with high tumor-to-normal tissue uptake3,7,8. Once bound, emissions from the radioisotope damage tumor cells, disrupting their ability to replicate and/or triggering cell death9-11. The radiation from the radioisotope works over very short distances to limit damage to surrounding cells1,3,7.
About VISION VISION is an international, prospective, randomized, open-label, multicenter, phase III study to assess the efficacy and safety of 177Lu-PSMA-617 (7.4 GBq administered by intravenous infusion every 6 weeks for a maximum of 6 cycles) plus investigator-chosen standard of care in the investigational arm, versus standard of care in the control arm1. Patients with PSMA PET-scan positive mCRPC, and progression after prior taxane and androgen receptor pathway inhibitors, were randomized in a 2:1 ratio in favor of the investigational arm1. The alternate primary endpoints were rPFS and OS1. The study enrolled 831 patients1.
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Sartor O, de Bono J, Chi KN, et al. Lutetium-177-PSMA-617 for metastatic castration-resistant prostate cancer. New England Journal of Medicine 2021. doi: 10.1056/NEJMoa2107322
Morris M, et al. Phase 3 study of 177Lu-PSMA-617 in patients with metastatic castration-resistant prostate cancer (VISION). Oral presentation at: ASCO Annual Meeting; June 6, 2021
Kratochwil C, Giesel FL, Stefanova M, et al. PSMA-targeted radionuclide therapy of metastatic castration-resistant prostate cancer with 177Lu-labeled PSMA-617. J Nucl Med 2016;57(8):1170–6 [https://pubmed.ncbi.nlm.nih.gov/26985056/]
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Ruigrok E, van Vliet N, et al. Extensive preclinical evaluation of lutetium-177-labeled PSMA-specific tracers for prostate cancer radionuclide therapy. Eur J Nucl Med Mol Imaging. 2020; 48: 1339-1350