To find out if adding treatment with fecal microbiota transplantation (FMT) is effective at treating gut-related side effects of antibiotic treatment in participants who are receiving standard therapy with anti-CD19 chimeric antigen receptor T-cell (CAR-T cell) therapy.
At least 18 years of age on the day of signing informed consent.
Histologically/cytologically confirmed diagnosis of B-cell lymphomas.
Is being planned to received FDA approved standard of care anti-CD19 Axicabtagene Ciloleucel.
Participants must have received or is receiving high-risk broad-spectrum antibiotics for minimum of two days within 180 days of scheduled Axicabtagene ciloleucel infusion. High-risk broad-spectrum antibiotics include carbapenems (meropenem, imipenem, doripenem), anti-pseudomonal antibiotics (cefepime, piperacillin-tazobactam, ceftazidime) or anaerobic antibiotics including metronidazole, clindamycin, amoxicillin-sulbactam.
If participant received major surgery within last 4 weeks, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment.
Has received a live vaccine within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (e.g., FluMist®) are live attenuated vaccines and are not allowed.
Has a diagnosis of primary immunodeficiency (excluding IgA deficiency).
Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the subject's participation for the full duration of the study, or is not in the study subject's best interest to participate, in the opinion of the treating investigator.