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Radiation, Oral Vancomycin, and CAR-T for B-Cell Lymphomas

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

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07478848
Enrollment
14
Registered
2026-03-18
Start date
2026-04-07
Completion date
2029-01-01
Last updated
2026-03-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Large B Cell Lymphoma, Non Hodgkin Lymphoma (NHL), Diffuse Large B Cell Lymphoma (DLBCL), Diffuse Large B Cell Lymphoma Refractory, Diffuse Large B Cell Lymphoma Relapsed

Keywords

non-hodgkin lymphoma, NHL, large B cell lymphoma, DLBCL, diffuse large B cell lymphoma

Brief summary

This clinical trial assesses whether it is feasible to use radiation therapy with vancomycin prior to CAR T-cell therapy for patients with large B-cell lymphomas

Interventions

Sponsors

Abramson Cancer Center at Penn Medicine
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Cytokine release syndromedate of CAR-T infusion to 28 days after infusionrate of CART-related cytokine release syndrome
Severe adverse eventsCAR-T infusion to 28 days after infusionrate of grade ≥ 3 adverse events attributed to vancomycin or radiation
VREstart of vancomycin to day 28 after CAR-T infusionrate of vancomycin-related enterococcus
Adverse Eventsstart of vancomycin until day 28 after CAR-T infusionrate of adverse events (AEs) and serious adverse events (SAEs)

Secondary

MeasureTime frameDescription
Best overall response rateCAR-T infusion to 12 months after CAR-T infusionpercentage of all patients who receive CAR-T and have complete response and partial response after CAR-T
Complete response rateCAR-T infusion to 12 months after CAR-T infusionpercentage of patients treated with CAR-T who have a complete response

Countries

United States

Contacts

CONTACTRachel Lundberg, PA-C
rachel.lundberg@pennmedicine.upenn.edu215-615-5858
CONTACTBrittany Koch
brittany.koch@pennmedicine.upenn.edu

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026