Using natural killer cells and mogamulizumab to treat relapsed or refractory cutaneous T-cell lymphomas and adult T-cell leukemia/lymphoma

A Pilot Phase I Trial of IL-21 Expanded, Off the Shelf, Third-Party Natural Killer (NK) Cells in Combination With Mogamulizumab in Patients With Cutaneous T-Cell Lymphomas or Adult T-Cell Leukemia/Lymphomas

Phase 1 Interventional Ohio State University Comprehensive Cancer Center · NCT04848064

This study is testing a new treatment using natural killer cells and mogamulizumab to see if it helps people with tough-to-treat skin lymphomas and adult T-cell leukemia feel better and live longer.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment12 (estimated)
Ages18 Years and up
SexAll
SponsorOhio State University Comprehensive Cancer Center Academic / other
Drugs / interventionsmogamulizumab, chemotherapy, radiation, prednisone, Immunotherapy, cyclophosphamide, fludarabine
Locations1 site (Columbus, Ohio)
Trial IDNCT04848064 on ClinicalTrials.gov

What this trial studies

This phase I trial aims to determine the safety, tolerability, and maximum tolerated dose of third-party natural killer (NK) cells combined with mogamulizumab for patients with relapsed or refractory cutaneous T-cell lymphoma and adult T-cell leukemia/lymphoma. The study involves a dose-escalation approach where patients receive NK cell infusions and mogamulizumab at specified intervals. Secondary objectives include assessing overall response rates, progression-free survival, overall survival, and quality of life impacts. The trial also includes correlative studies to evaluate various biological markers and the behavior of NK cells in the body.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with biopsy-proven, measurable, relapsed or refractory cutaneous T-cell lymphoma or adult T-cell leukemia/lymphoma.

Not a fit: Patients who have not undergone at least one prior line of systemic therapy or those with early-stage disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new immunotherapy option for patients with difficult-to-treat lymphomas.

How similar studies have performed: While this approach is innovative, similar immunotherapy strategies have shown promise in other hematological malignancies, suggesting potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Able to understand and voluntarily sign an informed consent form
* Age \>= 18 years at the time of signing the informed consent form
* Able to adhere to the study visit schedule and other protocol requirements
* Biopsy-proven, measurable, stage IB-IVB relapsed or refractory cutaneous T-cell lymphoma after 1 prior line of systemic therapy

  * Note: extracorporeal photopheresis will be considered a systemic therapy for this study
* Patients with large cell transformation of cutaneous T cell lymphoma are eligible
* Patients with adult T-cell leukemia/lymphoma (ATLL) of any stage and any subtypes. Patient must have had at least one standard chemotherapy and measurable disease at the time of enrollment
* Patients who relapsed after autologous or allogeneic stem cell transplant are eligible
* All cancer therapy, including radiation, topical steroid, and chemotherapy must have been discontinued at least 1 week or 3 half-lives whichever is the longest prior to treatment in this study. The only exceptions are participants who are symptomatic from their skin lesions and have been on corticosteroids for prolonged periods of time (\> 60 days) without change. These patients may continue use of either systemic steroids (equivalent to \< 10 mg per day of prednisone) or topical steroids if the frequency and dosage steroids has not changed for 21 days prior to the study. These participants should continue on the same dose of systemic/topical steroid throughout the study period unless they achieve a complete response at which time steroids can be tapered or discontinued. Patients are allowed to continue any medications with known activity in T cell lymphomas at the pre-enrollment doses for conditions other than T cell lymphomas (ie, steroids for sarcoidosis), as long as there is evidence of T cell lymphoma progression while patients were on these agents
* Eastern Cooperative Oncology Group (ECOG) performance status of =\< 1 at study entry
* Absolute neutrophil count \>= 1000/mm\^3
* Platelet count \>= 50,000/mm\^3
* Total bilirubin =\< 2 x upper limit of normal (ULN)
* Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase \[SGOT\]) and Alanine Aminotransferase (ALT) (serum glutamic pyruvic transaminase \[SGPT\]) =\< 3 x ULN

  * AST (SGOT) and ALT (SGPT) =\< 5 x ULN in patients with documented hepatic involvement by lymphoma
* Calculated creatinine clearance \>= 50 ml/min (by the Crockroft-Gault equation)
* Disease free of prior malignancies for \>= 2 years with exception of currently treated basal cell, squamous cell carcinoma of the skin, or carcinoma in situ of the cervix or breast. Patients with early stage of prostate cancer under clinical surveillance without therapy are eligible. Patients with B-cell lymphomas treated with curative intent, and in remission for at least 2 years, may be in included (after discussion with principal investigator \[PI\])
* Negative serum pregnancy test at the time of enrollment for females of childbearing potential. Women who can get pregnant and men with partners who can become pregnant will be asked to practice a highly effective method of birth control while participating in the study that is considered medically acceptable by the study doctor.
* Life expectancy \>= 90 days

Exclusion Criteria:

* Investigational therapies in the 2 weeks prior to beginning treatment on trial
* Patients with active central nervous system (CNS) involvement with lymphoma
* Patients with known human immunodeficiency virus (HIV) infection with CD4 \< 350
* Patients who had solid organ transplants
* Evidence of active hepatitis B infection, based on positive surface antigen or hepatitis B deoxyribonucleic acid (DNA) polymerase chain reaction (PCR), or active hepatitis C infection based on positive PCR. Patients who are hepatitis B core antibody positive must take prophylaxis with lamivudine or equivalent and be willing to undergo monthly hepatitis B DNA PCR testing
* Present or history of progressive multifocal leukoencephalopathy (PML)
* Active grade II-IV acute or extensive chronic graft versus (vs.) host disease (GVHD)
* Patients may take steroids at any dose for disease control up to 24 hours prior to study enrollment. Steroids must have been discontinued at least 1 week or 3 half-lives whichever is the longest prior to treatment in this study, per inclusion criteria above. Topical steroids are allowed for CTCL patients
* Any illness, medical condition or organ system dysfunction which, in the investigator's opinion, could compromise the subject's safety
* A cardiovascular disability status of New York Heart Association class \>= 2
* History of severe allergic reactions to humanized monoclonal antibodies
* History of other malignancy that could affect compliance with the protocol or interpretation of results. Patients with a history of curatively treated basal or squamous cell carcinoma or Stage 1 melanoma of the skin or in situ carcinoma of the cervix are eligible. Patients with early stage of prostate cancer under clinical surveillance without therapy are eligible
* Known hypersensitivity to any of the study drugs or analogs
* Known active bacterial, viral, fungal, mycobacterial, parasitic, or other infection (excluding fungal infections of nail beds) at study enrollment, or any major episode of infection requiring treatment with IV antibiotics or hospitalization (relating to the completion of the course of antibiotics) within 4 weeks prior study therapy
* Clinically significant history of liver disease, including viral or other hepatitis, or cirrhosis
* Receipt of live-virus vaccines within 28 days prior to the initiation of study treatment or need for live-virus vaccines at any time during study treatment
* Recent major surgery (within 6 weeks prior to the start of study treatment) other than for diagnosis
* Receiving immunosuppressive therapy
* Prior therapy with mogamulizumab unless stopped previously for reasons other than progression or toxicity.
* Pregnant or lactating, or intending to become pregnant during the study

Where this trial is running

Columbus, Ohio

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Recurrent Adult T-Cell Leukemia/LymphomaRecurrent Primary Cutaneous T-Cell Non-Hodgkin LymphomaRefractory Adult T-Cell Leukemia/LymphomaRefractory Primary Cutaneous T-Cell Non-Hodgkin Lymphoma
Last reviewed 2026-06-13 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.