A Phase 1/2 Study of UB-VV400 With Rapamycin in Relapsed/Refractory B-cell Malignancies

August 13, 2026 updated by: Umoja Biopharma

A Phase 1/2, Open-label, Multicenter Study of UB-VV400 With Rapamycin in Relapsed or Refractory B-cell Malignancies

This study is a Phase 1/2 dose-finding and dose-confirmation study to evaluate the safety and antitumor activity of UB-VV400. The study will enroll patients with relapsed/refractory B-cell malignancies, including large B-cell lymphoma (LBCL).

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

274

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. 18 years or older
  2. Provides voluntary written informed consent
  3. Relapsed or refractory large B-cell lymphoma (LBCL)
  4. Measurable disease according to Lugano 2014 criteria
  5. Confirmed CD22 expression
  6. No serious concomitant diseases or active/uncontrolled infections
  7. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  8. Adequate organ function

Exclusion Criteria:

  1. Women who are pregnant or breastfeeding
  2. Current isolated central nervous system (CNS) involvement
  3. Prior allogeneic bone marrow transplant, gene therapy, or adoptive cell transfer (except tumor-infiltrating lymphocytes, CAR-NK cells, T-cell receptor [TCR] fusion constructs, TCR T cells, and CAR T cells)
  4. History of or active human immunodeficiency virus (HIV)
  5. Active or chronic hepatitis B, or active hepatitis C
  6. Systemic immunodeficiency diseases, except for well-controlled Type I diabetes or thyroid disease
  7. Ongoing CNS disease that would preclude neurologic assessment
  8. Uncontrolled angina or other acute heart disease
  9. Currently receiving treatment in another interventional clinical trial.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: UB-VV400 + rapamycin
A single dose of UB-VV400 will be administered followed by treatment with rapamycin.
Drug: Rapamycin (sirolimus)
Rapamycin is a drug approved by the FDA for indications unrelated to cancer.
Other Names:
  • Rapamune
Genetic: UB-VV400
UB-VV400 is a gene therapy that generates CD22-directed CAR T cells in the body.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Phase 1: Percentage of participants with common adverse events (AEs)
Time Frame: Up to 2 years after UB-VV400 administration
Percentage of participants with commonly reported AEs overall and by severity
Up to 2 years after UB-VV400 administration
Phase 2: Overall response rate (ORR)
Time Frame: Up to 2 years after UB-VV4001 administration
Percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR)
Up to 2 years after UB-VV4001 administration

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Phase 1: Overall response rate (ORR)
Time Frame: Up to 2 years after UB-VV400 administration
Percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR)
Up to 2 years after UB-VV400 administration
Phase 1 and Phase 2: Complete response rate (CRR)
Time Frame: Up to 2 years after UB-VV400 administration
Percentage of participants with a best overall response (BOR) of complete response (CR)
Up to 2 years after UB-VV400 administration
Phase 1 and Phase 2: Pharmacokinetics (PK) of UB-VV400
Time Frame: Up to 8 days after UB-VV400 administration
Maximum concentration (Cmax), time to maximum concentration (Tmax), and AUC (area under the concentration vs time curve) for UB-VV400
Up to 8 days after UB-VV400 administration
Phase 2: Percentage of participants with common AEs
Time Frame: Up to 2 years after UB-VV111 administration
Percentage of participants with commonly reported AEs overall and by severity
Up to 2 years after UB-VV111 administration
Phase 2: Duration of response (DOR)
Time Frame: Up to 2 years after UB-VV400 administration
Duration from first evidence of response (CR or PR) to date of first evidence of disease progression or death, whichever is earlier
Up to 2 years after UB-VV400 administration
Phase 2: Progression-free survival (PFS)
Time Frame: Up to 2 years after UB-VV400 administration
Duration from first administration of UB-VV400 to the first evidence of disease progression or death from any cause, whichever is earlier.
Up to 2 years after UB-VV400 administration
Phase 2: Overall survival (OS)
Time Frame: Up to 2 years after UB-VV400 administration
Duration from first administration of UB-VV400 to death from any cause
Up to 2 years after UB-VV400 administration
Phase 2: Quality of life (QOL)
Time Frame: Up to 2 years after UB-VV400 administration
Performance on 2 QoL scales: EuroQol instrument EQ-5D-5L and Functional Assessment of Cancer Therapy - Lymphoma (FACT-Lym)
Up to 2 years after UB-VV400 administration

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Umoja Biopharma

Investigators

  • Study Director: Luke Walker, MD, Umoja Biopharma

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

August 1, 2026

Primary Completion (Estimated)

August 1, 2031

Study Completion (Estimated)

August 1, 2031

Study Registration Dates

First Submitted

July 24, 2026

First Submitted That Met QC Criteria

July 24, 2026

First Posted (Actual)

July 30, 2026

Study Record Updates

Last Update Posted (Actual)

August 17, 2026

Last Update Submitted That Met QC Criteria

August 13, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UB-VV400-03

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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