Introduction: Although malignant lymphoma is one of the most common malignancies among adolescents and young adults (AYAs), there has been limited information regarding their long-term outcome after completion of anti-lymphoma therapies, especially for non-Hodgkin lymphoma. Modified (m) CODOX-M/IVAC ± rituximab (R) therapy is one of the most frequently applied intensive regimens, mainly for patients (pts) with Burkitt lymphoma (BL) and primary mediastinal large B-cell lymphoma (PMBL) at our institution [Int J Hematol. 2010 and Hematol Oncol. 2013]. We aimed to investigate the long-term outcome after mCODOX-M/IVAC ± R therapy focusing on fertility and social reintegration. Methods: We conducted a questionnaire survey of pts with BL or PMBL who underwent mCODOX-M/IVAC ± R as an initial therapy between 2003 and 2015 at our institution. Quality of life (QOL) was assessed using the 36-Item Short Form Health Survey (SF-36) version 2. Results: A total of 65 pts were eligible; however, 5 pts were lost to follow-up. Finally, 60 pts (16 BL and 44 PMBL) were identified as subjects of this study. At the time of abstract preparation, 75% (45 pts: 29 females and 16 males) of questionnaires were retrieved. Median age at diagnosis was 34 years (range, 16-55) and median follow-up duration was 6 years (range, 1-16). Of 26 premenopausal females at initial diagnosis, fertility preservation was performed in 8 pts (30%) as follows: gonadotropin-releasing hormone analog (7), embryo cryopreservation (2) and oocyte cryopreservation (1). Menstrual recovery was observed in 21 out of the 26 premenopausal pts (80%) after completion of therapy with a median of 2.3 months, whereas 5 (19%) became amenorrheic. Of 16 males, sperm cryopreservation had been performed in 6 (38%). After the end of therapy, 5 pregnancies and 3 deliveries were observed. Regarding marital status, 3 were divorced and 5 got married. Furthermore, all 4 students returned to school within 7 months after the therapy. Of 36 working adults, 25 pts (69%) came back to their full-time work with a median of 4 months after completion of the therapy. The SF-36 showed that the physical component summary score of all pts was higher than Japanese national norms and the other summary scores were also comparable with the norms. Conclusions: To the best of our knowledge, this is the first report evaluating QOL after mCODOX-M/IVAC ± R therapy. Our findings demonstrate that this intensive regimen retains the potential for reproduction and social reintegration in pts with BL and PMBL, including AYAs. Sex Female Male 29 (64) 16 (35) 26 (72) 10 (27) 3 (33) 6 (66) Age Median, years (range) 34 (16-55) 34 (19-52) 34 (16-55) Follow-up from diagnosis Median, years (range) 6 (1-16) 5 (1-11) 8 (1-16) Fertility preservation (premenopausal female, n = 26) Yes Gonadotropin-releasing hormone analog Embryo cryopreservation Oocyte cryopreservation No 8 7 2 1 18 7 6 2 1 17 1 1 0 0 1 Fertility preservation (male, n = 16) Yes (sperm cryopreservation) No 6 10 4 6 2 1 Pregnancy after therapy Yes Female Male No 5 (11) 4 (8) 1 (2) 40 (88) 4 (11) 3 (8) 1 (2) 32 (88) 1 (11) 1 (11) 0 8 (88) Delivery after therapy Yes Female Male No 3 (6) 2 (4) 1 (2) 42 (93) 3 (8) 2 (5) 1 (2) 33 (91) 0 0 0 9 (100) SF-36v2 summary score, median (range) Physical component summary Mental component summary Social-role component summary 56.1 (40.5-68.4) 49.5 (13.5-71.2) 51.6 (19.8-71.2) 56.4 (40.5-68.4) 49.5 (13.5-71.2) 51.5 (19.8-71.2) 55.3 (46.4-62.6) 51.0 (42.0-65.7) 53.1 (47.0-58.4) Keywords: Burkitt lymphoma (BL); primary mediastinal large B-cell lymphoma (PMLBCL)