Trial reportBlood advances2025
Interim PET after 4 cycles predicts outcome in histomolecularly confirmed primary mediastinal B-cell lymphoma.
Trial report in Blood advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01659099 (Randomized Phase III Study Using a Pet-driven Strategy and Comparing GA101 OR Rituximab Associated to a Chemotherapy Delivered Every 14 Days), which is not on this map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Randomized Phase III Study Using a Pet-driven Strategy and Comparing GA101 OR Rituximab Associated to a Chemotherapy Delivered Every 14 Days (ACVBP or CHOP) in DLBCL CD20+ Lymphoma Untreated Patients From 18 to 60 Presenting With 1 or More Adverse Prognostic Factors of the Age-adjusted IPI
Who cites it
3 citing papers in PubMed.
- Interim assessment by circulating tumor DNA in primary mediastinal large B-cell lymphoma: a multicenter LYSA study.Blood advances · 2026Observational
- Real world outcomes and prognostic factors in Chinese patients with primary mediastinal B cell lymphoma: A single center experience and the Surveillance, Epidemiology, and End Results validation.Annals of hematology · 2026Article
- Multi-Level Oncological Management of a Rare, Combined Mediastinal Tumor: A Case Report.Current oncology (Toronto, Ont.) · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
37 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
abstractThe GAINED study was a randomized phase 3 trial comparing obinutuzumab (G) with rituximab (R) plus ACVBP (doxorubicin, cyclophosphamide, and prednisone, combined with either vindesine or bleomycin) or CHOP14 (cyclophosphamide, doxorubicin, vincristine, and prednisone, administered on a 14-day schedule) induction, followed by positron emission tomography (PET)-guided consolidation. This post hoc analysis aimed to detail the outcomes of patients with primary mediastinal B-cell lymphoma (PMBL), verified through expert pathological review and the use of gene expression profiling (GEP) and next-generation sequencing. Of 620 centrally reviewed patients, 138 (22.3%) confirmed PMBL cases were analyzed. Baseline characteristics included a median age of 33.5 years, 63.8% female, 55.1% stage III to IV, 90.6% elevated lactate dehydrogenase, 87.6% Eastern Cooperative Oncology Group performance status score of 0 to 1, 62.3% extranodal involvement, 52.6% age-adjusted International Prognostic Index (aaIPI) of 2% to 3%, and 53.6% bulk (>10 cm). Induction regimens were R/G-CHOP14 (56.9%) and R/G-ACVBP (43.1%). Postinduction treatments, based on interim PET results, included: standard consolidation chemotherapy (59.8%) if change in maximum standardized uptake value (ΔSUVmax) of >66% after cycle 2 and >70% after cycle 4 (PET2-/4-), intensive treatment and autologous transplantation (26.8%) if PET2+/4-, and salvage therapy (13.4%) if PET4+ (ΔSUVmax of ≤70%). Among patients with GEP data (n = 107), 38 (35.5%) were PDL1high/PDL2high. Key somatic mutations data (n = 87) included SOCS1 (70.1%), B2M (56.3%), STAT6 (49.4%), TNFAIP3 (47.1%), GNA13 (39.1%), CIITA (37.9%), CD58 (36.8%), and TP53 (29.9%). After a median follow-up of 39.5 months, 2-year progression-free survival (PFS) and overall survival (OS) rates were 86.2% and 93.2%, respectively. In a multivariate model including bulk, aaIPI, and ΔSUVmax PET2/PET4, only bulk and ΔSUVmax PET4 of ≤70% were associated with shorter PFS (hazard ratio, 4.39 [95% confidence interval (CI), 1.28-15.11] and 4.95 [95% CI, 1.71-14.3], respectively), whereas none were associated with OS. The ΔSUVmax-based interim PET4 response emerged as the strongest predictor of patient outcomes in this selected clinical trial population. This trial was registered at www.ClinicalTrials.gov as #NCT01659099.
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