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We examined real-world data on management of relapsed/refractory Hodgkin lymphoma (R/R HL) in five European countries and the consistency of these data with guideline recommendations. Retrospective clinical and epidemiologic data for 509 patients with R/R HL treated between January 2014 and March 2015 were collected at centers in France, Germany, Italy, Spain, and the United Kingdom. Mean age was 46.3 years; 73.3% were receiving second-line therapy for a first relapse during the reporting period. Most patients received ABVD as front-line chemotherapy, except in Germany where escalated BEACOPP was used more often. The proportion of patients receiving stem cell transplantation (SCT) was 44%; 85% of transplants occurred at first relapse. Brentuximab vedotin (BV) was usually administered after autologous SCT, and was initiated for 65% of patients following SCT failure. Our findings suggest that R/R HL management across these countries is broadly consistent with guideline recommendations and that BV is well-integrated into treatment pathways.

Purpose: The pathogenic association between Chlamydophila psittaci (Cp) and ocular adnexal marginal zone lymphoma (OAMZL) and the efficacy of doxycycline monotherapy have been investigated in retrospective series with variations in stage, management, and follow-up duration. To our knowledge, this is the first international phase II trial aimed at clarifying Cp prevalence and activity of first-line doxycycline in a homogeneous series of consecutive patients with newly diagnosed stage I OAMZL., Patients and Methods: Forty-seven patients were registered. Tumor tissue, conjunctival swabs, and peripheral blood from 44 patients were assessed for seven Chlamydiaceae infections by three polymerase chain reaction protocols. Thirty-four patients with measurable or parametrable disease were treated with doxycycline and assessed for chlamydial eradication and lymphoma response (primary end point)., Results: Cp DNA was detected in biopsies of 39 patients (89%); no other Chlamydiaceae were detected. Twenty-nine patients had Cp DNA in baseline swabs and/or blood samples and were evaluable for chlamydial eradication, which was achieved in 14 patients (48%). Lymphoma regression was complete in six patients and partial in 16 (overall response rate, 65%; 95% CI, 49% to 81%); 11 had stable disease, and one had progressive disease. At a median follow-up of 37 months (range, 15 to 62 months), 20 patients remained relapse free (5-year progression-free survival [PFS] ± standard deviation, 55% ± 9%). Cp eradication was associated with improved response rate (86% v 47%; P = .02) and 5-year PFS (68% v 47%; P = .11)., Conclusion: Upfront doxycycline is a rational and active treatment for patients with stage I Cp-positive OAMZL. Lymphoma regression is consequent to Cp eradication, which can easily be monitored on conjunctival and blood samples. Prospective trials aimed at identifying more effective administration schedules for doxycycline are warranted.