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Quantification of normal bone and osseous metastases in castration-resistant prostate cancer using SPECT/CT with xSPECT Quant: prospective imaging sub-study of a phase 2 clinical trial investigating the combination of pembrolizumab plus radium-223 compared to radium-223 alone.
Radiol Med
November 2024
Department of Imaging, Dana-Farber Cancer Institute, Department of Radiology Brigham and Women's Hospital, Boston, MA, 02115, USA.
Objective: The purpose of this study is to demonstrate the consistency and reproducibility of quantitative SPECT/CT by evaluating the maximum SUV (SUV) in normal bone, to provide the reference value of metastatic lesions, and to evaluate the clinical implication of SUV changes of osseous metastasis during treatment.
Material And Methods: This prospective imaging sub-study was performed as part of a phase 2 clinical trial of patients with metastatic castration-resistant prostate cancer (mCRPC) randomized to the combination of pembrolizumab plus radium-223 or to radium-223 alone (NCT03093428). The maximum standardized uptake value (SUV) and mean Hounsfield Unit (HU) of normal bone as well as metastases were measured using a 1.
Multivariable models of outcomes with [Lu]Lu-PSMA-617: analysis of the phase 3 VISION trial.
EClinicalMedicine
November 2024
Medical Oncology Department, Institut Gustave Roussy, University of Paris-Saclay, Villejuif, France.
Background: [Lu]Lu-PSMA-617 (Lu-PSMA-617) prolonged life in patients with metastatic castration-resistant prostate cancer (mCRPC) in VISION (NCT03511664). However, distinguishing between patients likely and unlikely to respond remains a clinical challenge. We present the first multivariable models of outcomes with Lu-PSMA-617 built using data from VISION, a large prospective phase 3 clinical trial powered for overall survival.
View Article and Find Full Text PDFTheranostics with somatostatin receptor antagonists in SCLC: Correlation of Ga-SSO120 PET with immunohistochemistry and survival.
Theranostics
September 2024
German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany.
Positron Emission Tomography (PET) using the somatostatin receptor 2 (SSTR2)-antagonist satoreotide trizoxetan (Ga-SSO120) is a novel, promising imaging modality for small-cell lung cancer (SCLC), which holds potential for theranostic applications. This study aims to correlate uptake in PET imaging with SSTR2 expression in immunohistochemistry (IHC) and to assess the prognostic value of Ga-SSO120 PET at initial staging of patients with SCLC. We analyzed patients who underwent Ga-SSO120 PET/CT during initial diagnostic workup of SCLC as part of institutional standard-of-care.
View Article and Find Full Text PDFQuantitative Ga-PSMA-11 PET and Clinical Outcomes in Metastatic Castration-resistant Prostate Cancer Following Lu-PSMA-617 (VISION Trial).
Radiology
August 2024
From the University of Arizona, Tucson, Ariz (P.H.K.); Memorial Sloan-Kettering Cancer Center, New York, NY (M.J.M.); Invicro, Needham, Mass (J.H.); Mayo Clinic, Rochester, Minn (A.T.K., O.S.); Department of Nuclear Medicine, University Hospital Münster, Münster, Germany (K.R.); West German Cancer Center, Münster and Essen, Germany (K.R.); Dana-Farber Cancer Institute, Boston, Mass (X.X.W.); Astera Cancer Care, East Brunswick, NJ (B.F.); Indiana University Simon Comprehensive Cancer Center, Indianapolis, Ind (N.A.); Miami Cancer Institute, Baptist Health South Florida, Miami, Fla (R.G.); Washington University, St. Louis, Mo (J.M.M.); British Columbia Cancer Agency, Vancouver, British Columbia, Canada (K.C.); The Institute of Cancer Research and Royal Marsden Hospital, London, United Kingdom (J.d.B.); Gustave Roussy Institute, University of Paris-Saclay, Villejuif, France (K.F.); Rostock University Medical Center, Rostock, Germany (B.K.); Weill Cornell Medicine, New York, NY (S.T.T.); Novartis Pharmaceuticals, East Hanover, NJ (S.G.); Novartis Pharmaceuticals, Indianapolis, Ind (M.B.); Novartis Pharmaceuticals, Cambridge, Mass (C.C.W.); Novartis Pharmaceuticals, Geneva, Switzerland (A.M.C.); Novartis Pharmaceuticals, St. George, Utah (T.B.); Duke Cancer Institute Center for Prostate and Urologic Cancers, Duke University, Durham, NC (A.J.A.); and University Hospital Essen and German Cancer Consortium, Hufelandstr. 55, 45147 Essen, Germany (K.H.).
Article Synopsis
- Lutetium 177 (Lu-PSMA-617) is a targeted therapy for metastatic castration-resistant prostate cancer (mCRPC), and baseline Ga-PSMA-11 PET/CT parameters may help determine treatment effectiveness.
- The analysis used data from the VISION trial, where participants received either Lu-PSMA-617 plus standard care or standard care alone, focusing on how various PET parameters related to treatment outcomes like survival and response rates.
- Results showed that higher whole-body tumor standardized uptake value (SUV) was linked to better treatment outcomes; for every 1-unit increase in SUV, the risk of radiographic progression and death decreased, indicating Lu-PS
PSMA-PET follow-up to assess response in patients not receiving PSMA therapy: Is there value beyond localization of disease?
Theranostics
July 2024
Department of Nuclear Medicine and German Cancer Consortium (DKTK), University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
Prostate Specific Membrane Antigen Positron Emission Tomography (PSMA-PET) is routinely used for the staging of patients with prostate cancer, but data on response assessment are sparse and primarily stem from metastatic castration-resistant prostate cancer (mCRPC) patients treated with PSMA radioligand therapy. Still, follow-up PSMA-PET is employed in earlier disease stages in case of clinical suspicion of disease persistence, recurrence or progression to decide if localized or systemic treatment is indicated. Therefore, the prognostic value of PSMA-PET derived tumor volumes in earlier disease stages (i.
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