PRIMARY OBJECTIVE:~I. To compare the complete remission (CR) rates by positron emission tomography (PET)/computed tomography (CT) following completion of treatment with duvelisib-cyclophosphamide (C) doxorubicin (H) vincristine (O) (etoposide [E]) prednisone (P) versus (vs) CHO(E)P and with oral azacitidine (CC-486)-CHO(E)P vs CHO(E)P in previously untreated peripheral T-cell lymphomas that have < 10% expression of CD30.~SECONDARY OBJECTIVES:~I. To determine the toxicity and tolerability of the treatment regimens. II. To determine the overall response rate (ORR), duration of response, progression free survival (PFS), event free survival (EFS), and overall survival (OS) of each treatment regimen.~III. To determine whether designation of follicular helper T-cell phenotype is correlated with response to therapy, PFS, EFS, and OS.~IV. To assess the toxicity profile of the experimental regimens in untreated CD30 negative peripheral T-cell lymphomas using Common Terminology Criteria for Adverse Events (CTCAE) and patient reported outcomes (PRO)-CTCAE.~OUTLINE: Patients are randomized to 1 of 3 arms.~ARM A: Patients receive cyclophosphamide intravenously (IV) on day 1, doxorubicin IV on day 1, vincristine IV on day 1, etoposide IV on days 1-3 or etoposide IV on day 1 and orally (PO) once daily (QD) on days 2-3 for patients <=60 years old, and prednisone PO QD on days 1-5. Patients also receive duvelisib PO twice daily (BID) on days 1-21. Treatment repeats every 21 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity.~ARM B: Patients receive cyclophosphamide IV on day 1, doxorubicin IV on day 1, vincristine IV on day 1, etoposide IV on days 1-3 or etoposide IV on day 1 and orally (PO) once daily (QD) on days 2-3 for patients <=60 years old, and prednisone PO QD on days 1-5. Patients also receive CC-486 PO QD on days -6 to 0 of cycle -1 and days 8-21 of cycles 1-5. Treatment repeats every 21 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity.~ARM C: Patients receive cyclophosphamide IV on day 1, doxorubicin IV on day 1, vincristine IV on day 1, etoposide IV on days 1-3 or etoposide IV on day 1 and orally (PO) once daily (QD) on days 2-3 for patients <=60 years old, and prednisone PO QD on days 1-5. Treatment repeats every 21 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity.~After completion of study treatment, patients are followed at 6 weeks after cycle 6 day 1, then every 12 weeks for 2 years, then every 24 weeks until 5 years from end of treatment or until documented progression of lymphoma. After documented progression of lymphoma, patients are followed up every 6 months until 5 years from end of treatment.
This phase II trial studies the effect of duvelisib or CC-486 and usual chemotherapy consisting of cyclophosphamide, doxorubicin, vincristine, etoposide, and prednisone in treating patients with peripheral T-cell lymphoma. Duvelisib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Chemotherapy drugs, such as CC-486, cyclophosphamide, doxorubicin, vincristine, etoposide and prednisone, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. This trial may help find out if this approach is better or worse than the usual approach for treating peripheral T-cell lymphoma.