Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 and up

Radiation, Vancomycin, and CAR-T for B-Cell Lymphoma

Official title: A Pilot Trial of Bridging Radiation Therapy With Oral Vancomycin for Patients With B-cell Lymphomas Undergoing CAR-T Therapy

Run by Abramson Cancer Center at Penn Medicine · NCT07478848 · Data updated 2026-11-12

This trial tests if giving radiation and the antibiotic vancomycin before CAR-T cell therapy is feasible for adults with large B-cell lymphomas.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment14 (estimated)
SponsorAbramson Cancer Center at Penn Medicine
Academic / other
Drugs / interventionsCAR-T, CART, chemotherapy, radiation, CAR T
Locations1 site (Philadelphia, Pennsylvania)
StatusRecruiting
StartedMay 29, 2026
Main results expectedJanuary 1, 2029
Study endsJanuary 1, 2029
Registry record updatedJuly 1, 2026
Trial IDNCT07478848 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with pathologically confirmed large B-cell lymphoma who are planned to receive standard-of-care CAR-T therapy and have disease sites amenable to radiation.

Probably not a fit

Patients without measurable disease or those not proceeding to CAR-T after the bridging strategy may not experience benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 1 interventional study explores whether a bridging strategy using radiation therapy combined with oral vancomycin is feasible prior to standard anti-CD19 CAR-T treatment in adults with large B-cell non-Hodgkin lymphoma. Eligible patients have measurable disease, at least one site suitable for radiation, and are candidates for CAR-T therapy. The approach aims to modulate the disease environment before CAR-T and assess practical aspects such as safety and logistics. Primary goals focus on feasibility, with secondary observations on preliminary safety and treatment response. This is conducted at the Abramson Cancer Center with collaboration from the NCI.

Why it matters

Potential benefit: If successful, patients may receive a safe and streamlined bridging approach prior to CAR-T that could improve disease control and treatment readiness.

How similar studies have gone: Prior small studies in similar bridging or combination approaches have shown mixed but encouraging signals for feasibility and safety in CAR-T settings.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female subject aged ≥ 18 years.
* Pathologically confirmed B-cell lymphoma patients intended for standard of care CAR-T
* ECOG Performance Status ≤ 2.
* Subjects must be clinically eligible to receive standard of care anti-CD19 CAR-T
* Subjects must have at least one site of disease amenable to radiation, with the ability to deliver radiation to at least 50% of involved sites
* Subjects must have at least one site of measurable disease based on CT or FDG PET
* Subjects must not be anticipated to require additional therapy beyond bridging radiation listed in this protocol for control of their lymphoma
* For female subjects: Negative pregnancy test or evidence of post-menopausal status. The post-menopausal status will be defined as having been amenorrheic for 12 months without an alternative medical cause.

The following age-specific requirements apply:

Women \< 50 years of age: amenorrheic for ≥ 12 months following cessation of exogenous hormonal treatments; and luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution; or Underwent surgical sterilization (bilateral oophorectomy or hysterectomy).

Women ≥ 50 years of age: amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments; or had radiation-induced menopause with last menses \>1 year ago; or had chemotherapy-induced menopause with last menses \>1 year ago; or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy, or hysterectomy).

* Able to provide informed consent and willing to sign an approved consent form that conforms to federal and institutional guidelines.
* Stated willingness to comply with all study procedures and availability for the duration of the study

Exclusion Criteria:

* Unable to take oral vancomycin for any reason, including: Allergy or Inability to swallow drug
* Known history of vancomycin resistant enterococcus (VRE)
* Contraindications to radiation therapy, including scleroderma, systemic lupus erythematosus, Crohn disease, ulcerative colitis, or idiopathic pulmonary fibrosis
* History of radiation pneumonitis or other grade 4 radiation-related adverse event
* Prior or concurrent malignancy whose natural history or treatment which has the potential to interfere with the safety or efficacy assessment of the radiation therapy are eligible for this trial.
* Severe, uncontrolled, significant intercurrent or recent illness that would exclude them from being a candidate for standard-of-care CART therapy.
* Known uncontrolled HIV infection with a detectable viral load at the time of screening. Note: Patients on effective antiretroviral therapy or who will plan on going on antiretroviral therapy at the time of screening are eligible for this trial. HIV testing is not required for eligibility.
* Active infection that required the use of antibiotics within 4 weeks prior to registration
* Any other condition that would, in the investigator's judgment, contraindicate the subject's participation in the clinical study due to safety concerns or compliance with clinical study procedures

Where it's running

  • Abramson Cancer Center, University of Pennsylvania
    Philadelphia, Pennsylvania, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.