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The measurement of the inclusive and diffractive longitudinal proton structure function at low-x and low Q² has been considered to be essential to complete the HERA ep programme and has motivated a run at reduced vs at the end of HERA. The theoretical interest in longitudinal structure functions is shortly motivated and basic principles of their direct measurements are outlined. A referenced simulation study anticipates the results that are awaited soon. [ABSTRACT FROM AUTHOR]

Optimal frontline treatment in younger high tumor-burden risk follicular lymphoma patients remains a challenge given the reduced efficacy of standard immunochemotherapy (R-CHOP) in widespread disease and unclear role of intensive induction. The retrospective non-randomized pair-matched (1:3) analysis compared 48 intermediate/high Follicular Lymphoma International Prognostic Index (FLIPI) patients receiving intensive rituximab sequential chemotherapy (R-SQ) with 144 random controls (R-CHOP) matched for age, FLIPI score, and maintenance delivery. Complete response rates were 91.7% and 74.1%, respectively (p = .038). After a median follow-up of 8.8 (R-SQ) and 6.5 years (R-CHOP), 5-year time to treatment failure, progression-free survival, and overall survival were 80.9%, 83.2%, and 100% and 57.5%, 60.3%, and 92.1% (p = .0044;p = .0047;p = .22), respectively. Intensive treatment was accompanied by higher acute hematologic toxicity and infections, comparable non-hematologic toxicity, and incidence of secondary malignancies. Intensive induction demonstrates superior long-term disease control compared to R-CHOP, with higher acute hematologic toxicity, but without acute treatment-related mortality. Further studies are needed to define ultra-high-risk FL patients benefiting most from treatment intensity. [ABSTRACT FROM PUBLISHER]

Background: Absolute lymphocyte count (ALC) and absolute monocyte count (AMC) have been documented as independent predictors of survival in patients with newly diagnosed Diffuse Large B-cell Lymphoma (DLBCL). Analysis of the prognostic impact of ALC and AMC in the context of International Prognostic Index (IPI) and other significant variables in elderly population treated in the R-CHOP regime has not been carried out yet. Methodology/Principal Findings: In this retrospective study, a cohort of 443 newly diagnosed DLBCL patients with age ≥60 was analyzed. All patients were treated with the R-CHOP therapy. An extensive statistical analysis was performed to identify risk factors of 3-year overall survival (OS). In multivariate analysis, only three predictors proved significant: Eastern Cooperative Oncology Group performance status (ECOG), age and bulky disease presence. These predictors were dichotomized (ECOG ≥1, age ≥70, bulk ≥7.5) to create a novel four-level score. This score predicted 3-year OS of 94.0%, 77.4%, 62.7% and 35.4% in the low-, low-intermediate, high-intermediate and high-risk groups, respectively (P<0.001). Further, a three-level score was tested which stratifies the population better (3-year OS: 91.9%, 67.2%, 36.2% in the low, intermediate and high-risk groups, respectively) but is more difficult to interpret. Both the 3- and 4-level scores were compared to standard scoring systems and, in our population, were shown to be superior in terms of patients risk stratification with respect to 3-year OS prediction. The results were successfully validated on an independent cohort of 162 patients of similar group characteristics. Conclusions: The prognostic role of baseline ALC, AMC or their ratio (LMR) was not confirmed in the multivariate context in elderly population with DLBCL treated with R-CHOP. The newly proposed age-specific index stratifies the elderly population into risk groups more precisely than the conventional IPI and its existing variants. [ABSTRACT FROM AUTHOR]