NCT07098364 · Fred Hutchinson Cancer Center
ST-067 in Combination With CD19-Directed CAR T-Cell Therapy (Liso-cel) in Relapsed/Refractory Large B-Cell Lymphoma
What this study is about
This phase I/II trial tests the safety, side effects, and best dose/regimen of ST-067 in combination with CD19-directed chimeric antigen receptor (CAR) T-cell therapy (liso-cel) and how well it works in treating patients with large B-cell lymphoma (LBCL) that has come back after a period of improvement (recurrent) or LBCL that has not responded to previous treatment (refractory).
View original scientific description
This phase I/II trial tests the safety, side effects, and best dose/regimen of ST-067 in combination with CD19-directed chimeric antigen receptor (CAR) T-cell therapy (liso-cel) and how well it works in treating patients with large B-cell lymphoma (LBCL) that has come back after a period of improvement (recurrent) or LBCL that has not responded to previous treatment (refractory). ST-067 is an engineered variant of the human cytokine interleukin-18 that may help the immune system kill cancer cells. Lisocabtagene maraleucel (liso-cel) is an autologous CAR T-cell therapy prepared using the person's own immune system (a group of cells, tissues, and organs that protect the body from attack by bacteria, viruses, and cancer cells) to fight the cancer. Giving ST-067 in combination with liso-cel may better treat patients with relapsed/refractory LBCL.
Interventions
BIOLOGICAL
Vevoctadekin
Given SC
PROCEDURE
Bone Marrow Aspiration
Undergo bone marrow aspiration
PROCEDURE
Bone Marrow Biopsy
Undergo bone marrow biopsy
PROCEDURE
Computed Tomography
Undergo CT
PROCEDURE
Echocardiography Test
Undergo ECHO
PROCEDURE
Leukapheresis
Undergo leukapheresis
BIOLOGICAL
Lisocabtagene Maraleucel
Given IV
PROCEDURE
Lumbar Puncture
Undergo lumbar puncture
PROCEDURE
Lymphodepletion Therapy
Undergo lymphodepletion chemotherapy
PROCEDURE
Multigated Acquisition Scan
Undergo MUGA
PROCEDURE
Positron Emission Tomography
Undergo PET scan
PROCEDURE
X-Ray Imaging
Undergo x-ray
PROCEDURE
Biospecimen Collection
Undergo blood and CSF sample collection
Primary outcome measures
Incidence of adverse events (AEs)
Time frame: Up to 4 years
Will be graded in severity according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0, with the exception of cytokine release syndrome and immune effector cell-associated neurotoxicity syndrome, which will be graded according to the American Society for Transplantation and Cellular Therapy consensus criteria. The type, frequency, and severity of AEs and laboratory abnormalities will be listed and summarized.
Dose limiting toxicities (DLT)
Time frame: Up to 21 days following the first vevoctadekin (ST-067) dose
Will be graded in severity according to the NCI CTCAE version 5.0. Will be summarized based on the DLT evaluable population. Final DLT rates at each dose level will be estimated by isotonic regression by applying the pooled adjacent violators algorithm. The target toxicity rate is 30%.
Optimal biological regimen
Time frame: Up to 4 years
Will be assessed based on safety and tolerability, confirmation of maximum target engagement, optimal biological effects without undesirable clinical effects, pharmacokinetics parameters, and biological response data.
Complete response (CR) rate
Time frame: At 3 months after liso-cel infusion
Will be assessed by Lugano criteria. Will be summarized along with the 2-sided 95% exact Clopper-Pearson confidence interval (CI) based on the efficacy-evaluable population.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Male or female \>= 18 years of age at the time of consent
- Patients with LBCL (including diffuse large B-cell lymphoma \[DLBCL\] not otherwise specified \[including DLBCL arising from indolent lymphoma\], high-grade B-cell lymphoma, primary mediastinal large B-cell lymphoma, and follicular lymphoma grade 3B) with at least 2 lines of systemic therapy and an Food and Drug Administration (FDA)-approved indication for treatment with liso-cel
- Fluorodeoxyglucose (FDG)-avid disease on PET imaging before lymphodepletion or pathology evidence of active disease
- Evidence of CD19 expression on any prior or current tumor specimen or a high likelihood of CD19 expression based on disease histology
- Karnofsky performance status \>= 60%
- Adequate bone marrow function for lymphodepletion chemotherapy defined as: absolute neutrophil count (ANC) \>= 1000 cells/mm\^3, platelets \>= 50,000 cells/mm\^3, and hemoglobin \>= 8 g/dL, unless the cytopenias are due to bone marrow involvement by lymphoma in the opinion of the principal investigator (PI)
- Calculated creatinine clearance (Cockcroft/Gault) \> 30 mL/min/1.73 m\^2
- Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =\< 3 x upper limit of normal (ULN) (or \< 5 x ULN for subjects with lymphomatous infiltration of the liver) and total bilirubin =\< 2 (or \< 3.0 for subjects with Gilbert's syndrome, lymphomatous infiltration of the liver, or hemolysis)
- Adequate pulmonary function based on pulmonary function testing (PFT), defined as forced expiratory volume in 1 second (FEV1) and FEV1/forced vital capacity (FVC) ratio of \>= 60% of predicted value and diffusing capacity of the lung for carbon monoxide (DLCO; corrected) \>= 40% of predicted value
- Adequate cardiac function, defined as left ventricular ejection fraction (LVEF) \>= 40% as assessed by echocardiogram or multiple uptake gated acquisition (MUGA)
- Women of reproductive potential (defined as all women physiologically capable of becoming pregnant) must agree to use suitable methods of contraception for at least 30 days after the last dose of study therapy (ST-067)
- Males who have partners of reproductive potential must agree to use an effective barrier contraceptive method for at least 90 days after the last dose of study therapy (ST-067)
- Ability to understand and provide informed consent
- Able and willing to comply with study visit schedule and procedures, including tumor biopsy where feasible and with acceptable risk
Exclusion criteria
- Planned use of out-of-specification liso-cel product
- History of another malignancy. The following are exceptions to this criterion:
- Adequately treated basal cell or squamous cell carcinoma of the skin.
- In situ prostate, ductal breast carcinoma breast, and cervical carcinoma.
- Adequately treated papillary, noninvasive bladder cancer.
- Other adequately treated stage 1 or 2 cancers currently in complete remission.
- Any other cancer that has been in remission for \>= 2 years
- Planned use of therapeutic doses of corticosteroids (\> 20 mg/day prednisone or equivalent) or other systemic immunosuppression within 7 days prior to leukapheresis or within 72 hours prior to liso-cel infusion. Topical and/or inhaled steroids are permitted
- Prior treatment with any CD19 CAR T-cell therapy
- For allogeneic hematopoietic cell transplant recipients, active graft versus host disease (GVHD) and/or systemic GVHD therapy within 30 days prior to planned leukapheresis
- Known active hepatitis B (detectable hepatitis B deoxyribonucleic acid \[DNA\]) or hepatitis C (detectable hepatitis C ribonucleic acid \[RNA\])
- Known human immunodeficiency virus (HIV) infection
- Pregnant or breastfeeding women
- Prior treatment with any IL-1 or IL-18 agonist and/or biosimilar agents, or an investigational agent within 4 weeks or 5 half-lives, whichever is shorter, prior to start of lymphodepletion
- Active autoimmune or inflammatory disorders (including inflammatory bowel disease \[e.g., ulcerative colitis, Crohn's disease\], celiac disease, or other serious chronic gastrointestinal conditions associated with diarrhea, autoimmune vasculitis, systemic lupus erythematosus, Wegener syndrome \[granulomatosis with polyangiitis\], myasthenia gravis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc.) requiring immunosuppressive therapy. The following are exceptions to this criterion:
- Hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement.
- Type 1 diabetes mellitus.
- Psoriasis not requiring systemic treatment.
- Conditions considered to be low risk of serious deterioration by the PI
- History of any one of the following cardiovascular conditions within the past 6 months, unless clearance by a cardiologist is obtained: class III or IV heart failure as defined by the New York Heart Association (NYHA), cardiac angioplasty or stenting, myocardial infarction, or unstable angina. History of other clinically significant cardiac disease that, in the opinion of the PI or designee, is a contraindication to study treatment is also excluded
- Significant electrocardiogram (ECG) abnormalities, including unstable cardiac arrhythmia requiring medication, second-degree atrioventricular (AV) block type II, third-degree AV block, \>= grade 2 bradycardia, or QT interval corrected using Fridericia's formula \> 500 ms irrespective of gender
- History or presence of clinically relevant central nervous system (CNS) pathology, such as epilepsy, seizure, paresis, aphasia, stroke, severe brain injuries, dementia, Parkinson's disease, cerebellar disease, or psychosis that in the opinion of the PI is a contraindication to study treatment.
- Patients with active parenchymal CNS involvement by malignancy will be excluded. Patients with prior or current secondary leptomeningeal CNS disease are eligible. CNS disease prophylaxis must be stopped at least 1 week prior to liso-cel infusion
- History of solid organ transplantation
- Active, serious, and uncontrolled infection(s)
Where
- Seattle, Washington
Collaborators
Simcha Therapeutics
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jan 14, 2026 · Source of record for eligibility and locations