ClinicalTrials.gg
RecruitingNCT07735533Updated Nov 10, 2026

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

A Phase 1/2 interventional study of UB-VV400 and Rapamycin (sirolimus) in Lymphoma, B Cell, Lymphoma Non-Hodgkin and High Grade B Cell Lymphoma, sponsored by Umoja Biopharma. Recruiting at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-10.

Primary conditionLymphoma, Large B-Cell, DiffuseRegistry: Lymphoma, B-CellReclassifiedWhy we changed it
Registry
Lymphoma, B-Cell — the first condition term the registry derived for this study.
ClinicalTrials.gg
Lymphoma, Large B-Cell, Diffuse
Why
  1. The study's listed conditions name Lymphoma, Large B-Cell, Diffuse, a narrower term within Lymphoma, B-Cell.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Umoja Biopharma · Phase 1/2, Interventional, and Treatment

Updated Nov 10, 2026Now RecruitingFirst site in United States+2 moreGo to Updates ↓
Phase
Phase 1/2
Study type
Interventional
Enrollment
274
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

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).

02

Conditions studied

  • Lymphoma, B Cell
  • Lymphoma Non-Hodgkin
  • High Grade B Cell Lymphoma
  • Richter Transformation Lymphoma
  • Grade 3b Follicular Lymphoma
  • Primary Mediastinal B Cell Lymphoma
  • Diffuse Large B Cell Lymphoma (DLBCL)

Browse trials for

Keywords

  • CAR T
  • chimeric antigen receptor
  • CD22
03

In context

Lymphoma, Large B-Cell, Diffuse Reclassified

1,868 studies on the registry are indexed under Lymphoma, Large B-Cell, Diffuse; 355 are open to participants now.

This study's planned enrollment of 274 is above the median of 45 across 1,497 interventional studies indexed under Lymphoma, Large B-Cell, Diffuse.

Browse Lymphoma, Large B-Cell, Diffuse studies →

Lead sponsor

Umoja Biopharma is the lead sponsor of 3 studies on the registry; 3 are open to participants now.

Compared within Lymphoma, Large B-Cell, Diffuse, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Lymphoma, B-Cell. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

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

Exclusion criteria

Exclusion Criteria:

  1. Women who are pregnant or breastfeeding
  2. Current isolated central nervous system (CNS) involvement
  3. Prior 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 (HIV)
  5. Active or chronic , or active
  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.
Terms in these criteria, in plain language(8)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
274 participants (estimated)

Study arms

  • Experimental
    UB-VV400 + rapamycin

    A single dose of UB-VV400 will be administered followed by treatment with rapamycin.

    Genetic: UB-VV400 · Drug: Rapamycin (sirolimus)

Interventions

  • GeneticUB-VV400

    UB-VV400 is a gene therapy that generates CD22-directed CAR T cells in the body.

  • Rapamycin is a drug approved by the FDA for indications unrelated to cancer.

    Also known as: Rapamune

06

What researchers measure

Primary outcomes

  1. Phase 1: Percentage of participants with common adverse events (AEs)

    Percentage of participants with commonly reported AEs overall and by severity

    Time frame: Up to 2 years after UB-VV400 administration

  2. Phase 2: Overall response rate (ORR)

    Percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR)

    Time frame: Up to 2 years after UB-VV4001 administration

Secondary outcomes

  1. Phase 1: Overall response rate (ORR)

    Percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR)

    Time frame: Up to 2 years after UB-VV400 administration

  2. Phase 1 and Phase 2: Complete response rate (CRR)

    Percentage of participants with a best overall response (BOR) of complete response (CR)

    Time frame: Up to 2 years after UB-VV400 administration

  3. Phase 1 and Phase 2: Pharmacokinetics (PK) of UB-VV400

    Maximum concentration (Cmax), time to maximum concentration (Tmax), and AUC (area under the concentration vs time curve) for UB-VV400

    Time frame: Up to 8 days after UB-VV400 administration

  4. Phase 2: Percentage of participants with common AEs

    Percentage of participants with commonly reported AEs overall and by severity

    Time frame: Up to 2 years after UB-VV111 administration

  5. Phase 2: Duration of response (DOR)

    Duration from first evidence of response (CR or PR) to date of first evidence of disease progression or death, whichever is earlier

    Time frame: Up to 2 years after UB-VV400 administration

  6. Phase 2: Progression-free survival (PFS)

    Duration from first administration of UB-VV400 to the first evidence of disease progression or death from any cause, whichever is earlier.

    Time frame: Up to 2 years after UB-VV400 administration

  7. Phase 2: Overall survival (OS)

    Duration from first administration of UB-VV400 to death from any cause

    Time frame: Up to 2 years after UB-VV400 administration

  8. Phase 2: Quality of life (QOL)

    Performance on 2 QoL scales: EuroQol instrument EQ-5D-5L and Functional Assessment of Cancer Therapy - Lymphoma (FACT-Lym)

    Time frame: Up to 2 years after UB-VV400 administration

07

Study locations

2 of 2 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

2 registry updates since Sep 25, 2026
Status
Not yet recruiting→Recruiting
changed Oct 9, 2026
Sites
2 sites added — first site in United States
Show 2 added (2 United States)
  • Sarah Cannon Research Institute · Nashville, United States
  • City of Hope · Irvine, United States
across 2 updates, Oct 9, 2026 – Nov 10, 2026
Start date
Aug 2026→Nov 2026
moved 2 times, Oct 9, 2026 – Nov 10, 2026
Show all 2 updates
  1. Nov 10, 2026
    1 site added
    Show site
    • City of Hope · Irvine, United States
    Start date Sep 2026→Nov 2026
    + 1 other change: verification date
  2. Oct 9, 2026
    Not yet recruiting→Recruiting
    1 site added — first site in United States
    Show site
    • Sarah Cannon Research Institute · Nashville, United States
    Start date Aug 2026→Sep 2026
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07735533
Lead sponsor
Umoja Biopharma
Responsible party
Sponsor
First posted
Jul 30, 2026
Start date
Nov 2026 (estimated)
Primary completion
Aug 2031 (estimated)
Completion
Aug 2031 (estimated)
Last update
Nov 10, 2026

Study contacts

Luke Walker, MD
Contact
luke.walker@umoja-biopharma.com
206-227-5056
Luke Walker, MD
study director · Umoja Biopharma

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Sirolimus

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