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1.
Blood ; 143(17): 1713-1725, 2024 Apr 25.
Article in English | MEDLINE | ID: mdl-38194692

ABSTRACT

ABSTRACT: Tisagenlecleucel is approved for adults with relapsed/refractory (r/r) follicular lymphoma (FL) in the third- or later-line setting. The primary analysis (median follow-up, 17 months) of the phase 2 ELARA trial reported high response rates and excellent safety profile in patients with extensively pretreated r/r FL. Here, we report longer-term efficacy, safety, pharmacokinetic, and exploratory biomarker analyses after median follow-up of 29 months (interquartile range, 22.2-37.7). As of 29 March 2022, 97 patients with r/r FL (grades 1-3A) received tisagenlecleucel infusion (0.6 × 108-6 × 108 chimeric antigen receptor-positive viable T cells). Bridging chemotherapy was allowed. Baseline clinical factors, tumor microenvironment, blood soluble factors, and circulating blood cells were correlated with clinical response. Cellular kinetics were assessed by quantitative polymerase chain reaction. Median progression-free survival (PFS), duration of response (DOR), and overall survival (OS) were not reached. Estimated 24-month PFS, DOR, and OS rates in all patients were 57.4% (95% confidence interval [CI], 46.2-67), 66.4% (95% CI, 54.3-76), and 87.7% (95% CI, 78.3-93.2), respectively. Complete response rate and overall response rate were 68.1% (95% CI, 57.7-77.3) and 86.2% (95% CI, 77.5-92.4), respectively. No new safety signals or treatment-related deaths were reported. Low levels of tumor-infiltrating LAG3+CD3+ exhausted T cells and higher baseline levels of naïve CD8+ T cells were associated with improved outcomes. Tisagenlecleucel continued to demonstrate highly durable efficacy and a favorable safety profile in this extended follow-up of 29 months in patients with r/r FL enrolled in ELARA. This trial was registered at www.clinicaltrials.gov as #NCT03568461.


Subject(s)
Lymphoma, Follicular , Humans , Lymphoma, Follicular/drug therapy , Lymphoma, Follicular/mortality , Middle Aged , Male , Female , Aged , Adult , Immunotherapy, Adoptive/adverse effects , Immunotherapy, Adoptive/methods , Neoplasm Recurrence, Local/drug therapy , Receptors, Antigen, T-Cell/therapeutic use , Follow-Up Studies , Treatment Outcome
2.
Clin Lymphoma Myeloma Leuk ; 19(8): e457-e464, 2019 08.
Article in English | MEDLINE | ID: mdl-31129112

ABSTRACT

INTRODUCTION: The diagnostic accuracy of fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in staging mantle-cell lymphoma has not yet investigated. The aim of this 2-center retrospective study was to investigate the utility of 18F-FDG PET/CT in assessing nodal, splenic, bone marrow (BM), and gastrointestinal (GI) disease compared to CT, BM, and GI endoscopy; and to assess its clinical impact. PATIENTS AND METHODS: One hundred twenty-two patients with histologically proven mantle-cell lymphoma were included. PET/CT BM findings were considered positive if isolated/multiple focal uptake in the BM not explained by benign findings and/or diffuse BM uptake higher than liver with/without focal uptakes were present. PET/CT findings were considered positive for GI involvement in the presence of isolated/multiple focal uptake in the GI organ. RESULTS: All patients had positive PET/CT showing the presence of at least one hypermetabolic lesion, with the exception of one case. PET/CT results, compared to CT, detected more nodal and/or splenic lesions in 26 patients. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of PET/CT for BM were 52%, 98%, 97%, 65%, and 74%; for GI 64%, 91%, 69%, 90%, and 85%; and for GI excluding diabetic patients, 78%, 92%, 72%, 94%, and 89%. PET/CT permitted upstaging of 21 cases and downstaging of 2. CONCLUSION: 18F-FDG PET/CT showed excellent detection rate in nodal and splenic disease-a rate better than CT. For BM and GI evaluation, in order to reach good accuracy, the selection of patients and the use of specific criteria for evaluation of these organs seems to be crucial. Moreover, PET/CT altered the management and therapeutic approach in about 20% of patients.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Fluorodeoxyglucose F18/metabolism , Lymphoma, Mantle-Cell/pathology , Positron Emission Tomography Computed Tomography/methods , Stem Cell Transplantation/mortality , Adult , Aged , Aged, 80 and over , Combined Modality Therapy , Female , Follow-Up Studies , Humans , Lymphoma, Mantle-Cell/diagnostic imaging , Lymphoma, Mantle-Cell/metabolism , Lymphoma, Mantle-Cell/therapy , Male , Middle Aged , Prognosis , Radiopharmaceuticals/metabolism , Retrospective Studies , Survival Rate
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