Are dynamic or fixed FDG-PET measures of disease of greater prognostic value in patients with relapsed/refractory diffuse large B-cell lymphoma undergoing autologous haematopoietic stem cell transplantation?

Campbell, BA; Brown, R; Lambertini, A; Hofman, MS; Bressel, M; Seymour, JF; Wirth, A; MacManus, M; Dickinson, M

Author(s): Campbell, BA; Brown, R; Lambertini, A; Hofman, MS; Bressel, M; Seymour, JF; Wirth, A; MacManus, M; Dickinson, M;
Details: Publication Year 2023-05,Volume 201,Issue #3,Page 502-509
Journal Title: British Journal of Haematology
Publication Type: Research article
Abstract: Positron emission tomography (PET) response assessment using the Deauville score has prognostic utility in relapsed/refractory (R/R) diffuse large B-cell lymphoma (DLBCL) undergoing autologous stem-cell transplantation (ASCT). Improved predictive methods are required to identify patients with poor outcomes who may be better considered for other salvage options. We investigated the prognostic value of mean tumour volume (MTV) and maximum standardised uptake value (SUVmax) at pre-salvage and pre-ASCT time-points, and the quantitative changes between scans (∆MTV and ∆SUVmax). One hundred and twenty-five patients with R/R DLBCL underwent salvage immunochemotherapy and ASCT: 80 patients had pre-salvage PET and 90 had pre-ASCT PET available. With a median follow-up of 5.6 years, 5-year progression-free survival (PFS) and overall survival (OS) were 52% and 65%, respectively. For patients with PET-positive residual disease after salvage therapy, pre-ASCT MTV was a significant negative prognosticator for PFS (HR 1.19 per 100 ml, p < 0.001) and OS (HR 1.78 per 100 ml, p < 0.001). Similarly, pre-ASCT SUVmax was negatively associated with PFS (HR 1.08, p < 0.001) and OS (HR 1.08, p < 0.001). Notably, pre-salvage MTV and SUVmax and ∆MTV and ∆SUVmax were not associated with PFS or OS. In conclusion, pre-ASCT MTV and SUVmax appear to be of greater predictive value than the degree of response. Potential application may exist for PET-directed management of R/R DLBCL patients.
Publisher: Wiley
Keywords: Humans; Prognosis; Fluorodeoxyglucose F18; Positron-Emission Tomography/methods; *Hematopoietic Stem Cell Transplantation/methods; *Lymphoma, Large B-Cell, Diffuse/diagnostic imaging/therapy; Transplantation, Autologous; Retrospective Studies; Dlbcl; Pet; predictive; relapse
Department(s): Radiation Oncology; Biostatistics and Clinical Trials; Cancer Imaging; Clinical Haematology; Pathology
PubMed ID: 37015002
Publisher's Version: https://doi.org/10.1111/bjh.18644
Open Access at Publisher's Site: 10.1111/bjh.18644
Terms of Use/Rights Notice: Refer to copyright notice on published article.

Creation Date: 2023-08-08 01:31:23

Last Modified: 2024-07-10 06:23:30