Peripheral T-cell lymphoma unspecified refractory

The goal of this clinical trial is to evaluate the efficacy and safety of Pembrolizumab in combination with Olaparib in participants with relapsed/refractory Peripheral T-cell Lymphoma (PTCL).
The study mainly aims to evaluate:
* objective response rate (ORR) as per Cheson response criteria assessed by the independent central review
* overall survival and progression-free survival
* adverse events by CTCAE version 5.0
The administration of Pembrolizumab and Olaparib to participants will occur on Day 1 of each 3-week dosing cycle and will continue until disease progression or unacceptable toxicity, up to 35 cycles. Treatment with Olaparib will proceed continuously from Day 1 of Cycle 1, in 3-week dosing cycles in parallel with Pembrolizumab, up to 35 cycles, unless specific withdrawal/discontinuation criteria are met. After the end of treatment, each subject will be followed for 30 days for adverse event (AE) monitoring (serious AEs [SAEs] will be collected for 90 days after the end of treatment or 30 days after the end of treatment if the subject initiates new anticancer therapy, whichever is earlier).

The primary purpose of the study is to investigate the incidence of adverse drug reactions (ADRs) (ADR of special interest: capillary leak syndrome, infusion reaction, rhabdomyolysis, myelosuppression, infection, hepatic dysfunction, visual impairment/color blindness, ischemic heart disease/arrhythmia/cardiac failure, and severe skin disorders).

This phase I/II trial studies the side effects and best dose of modified umbilical cord blood immune cells (natural killer [NK] cells) combined with the antibody AFM13 (AFM13-NK) and AFM13 alone in treating patients with CD30 positive Hodgkin lymphoma or non-Hodgkin lymphoma that has come back (recurrent) or does not respond to treatment (refractory). Immunotherapy with monoclonal antibodies, such as AFM13, may help the body's immune system attack the cancer, and may interfere with the ability of cancer cells to grow and spread. Giving AFM13 loaded with NK cells followed by AFM13 alone may kill more cancer cells and decrease cancer growth in patients with CD30 positive AFM13-NK Hodgkin and Non-Hodgkin lymphomas.