UTAA17 injection for treating relapsed or refractory multiple myeloma

Single-arm, Open-label, Early-stage Clinical Study of UTAA17 Injection in the Treatment of Relapsed/Refractory Multiple Myeloma

This study is testing a new injection called UTAA17 to see if it can safely help people with relapsed or refractory multiple myeloma.

Quick facts

• Phase: NA
• Study type: Interventional
• Enrollment: 15 (estimated)
• Ages: 18 Years and up
• Sex: All
• Sponsor: PersonGen BioTherapeutics (Suzhou) Co., Ltd. (industry)
• Drugs / interventions: CAR T, chemotherapy
• Locations: 1 site (Suzhou, Jiangsu)
• Trial ID: NCT06279026 on ClinicalTrials.gov

What this trial studies

This clinical trial is a single-arm, open-label study aimed at evaluating the safety, pharmacokinetics, and recommended dose of the UTAA17 injection in patients with relapsed or refractory multiple myeloma. Participants will receive the UTAA17 infusion after a pretreatment phase, with blood samples collected to assess pharmacokinetics, immunogenicity, and safety. Efficacy will be measured using the revised IMWG criteria at various intervals following the infusion, continuing until disease progression or other specified endpoints occur.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who have been diagnosed with relapsed or refractory multiple myeloma and have failed at least three prior lines of therapy.

Not a fit: Patients who have not received prior treatment or those with non-measurable disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with relapsed or refractory multiple myeloma.

How similar studies have performed: While this approach is being explored, similar studies have shown promise in treating multiple myeloma with novel therapies, indicating potential for success.

Eligibility criteria

Inclusion Criteria:

* All subjects or legal representatives must sign an informed consent form approved by the Ethics Committee in person before commencing any screening process.
* ≥18 years old, regardless of gender, diagnosed with relapsed or refractory multiple myeloma according to the Efficacy Evaluation Criteria for multiple myeloma (IMWG), where relapsed or refractory is defined as: Multiple myeloma that has failed or relapsed after at least 3 lines of therapy (including proteasome inhibitor and immunomodulator-based chemotherapy regimen) in which induction chemotherapy, stem cell transplantation, and maintenance therapy given consecutively are considered a treatment regimen if no disease progression occurs during treatment.
* The presence of measurable lesions at the time of screening will be determined according to any of the following criteria:

  1. Monoclonal plasma cells in bone marrow ≥ 10%.
  2. Serum monoclonal protein (M-protein) level ≥10 g/L.
  3. Urinary M protein level ≥200 mg/24 hours.
  4. Light chain multiple myeloma with no measurable lesions in serum or urine: serum immunoglobulin free light chain ≥10 mg/dL and abnormal serum immunoglobulin κb /γ free light chain ratio.
  5. There are extramedullary lesions.
* BCMA expression on the cell membrane is positive by flow cytometry and/or immunohistochemistry.
* Patients were unable to undergo autologous hematopoietic stem cell transplantation or relapsed after autologous hematopoietic stem cell transplantation and were determined by the investigators to require treatment.
* Patients who have previously received CAR T cell therapy should not be included until at least 3 months after the last CAR T cell infusion and no previously used CAR T cells are detectable in peripheral blood or bone marrow.
* The ECOG score is 0 or 1.
* Expected survival ≥12 weeks.
* Subjects must have appropriate organ function and meet all of the following laboratory test results prior to enrollment

  1. Blood routine: Absolute neutrophil count (ANC) \>0.75×10\^9 /L; Absolute lymphocyte count (ALC) ≥0.3×10\^9 /L; Platelet ≥50×10\^9 /L; Hemoglobin \>60 g/L
  2. Liver function: alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤2.5 × upper limit of normal (ULN); Serum total bilirubin ≤1.5×ULN, except patients with Gilbert syndrome (patients with Gilbert syndrome ≤3.0 times the upper limit of normal and direct bilirubin ≤1.5 times the upper limit of normal can be included)
  3. Renal function: serum creatinine ≤2.5×ULN
  4. Coagulation function: fibrinogen ≥ 1.0g /L; Activated partial thromboplastin time, activated partial thromboplastin time ≤1.5×ULN, and prothrombin time (PT) ≤1.5×ULN
  5. Must have a minimum level of lung reserve, blood oxygen saturation \> 92%
* Hemodynamically stable and left ventricular ejection fraction (LVEF) ≥ 50% as determined by echocardiography.

Exclusion Criteria:

* Patients who were determined by the investigators to require long-term immunosuppressant use during screening.
* Cerebrovascular accident or convulsive attack occurred within 6 months before signing the informed consent.
* Other malignancies other than MM, except carcinoma in situ.
* Hepatitis B surface antigen (HBsAg) positive; Hepatitis B core antibody (HBcAb) positive and peripheral blood hepatitis B virus (HBV) DNA titer detection is not within the normal reference value range; Hepatitis C virus (HCV) antibody positive and peripheral blood hepatitis C virus (HCV) RNA positive; Human immunodeficiency virus (HIV) antibody positive; cytomegalovirus (CMV) DNA test positive; EBV virus DNA and herpes virus DNA positive test; Syphilis test positive.
* Serious heart disease: including, but not limited to, unstable angina, myocardial infarction (within 6 months prior to screening), congestive heart failure (NYHA classification ≥III), and severe arrhythmia.
* Unstable systemic disease, as determined by the investigator: including, but not limited to, severe liver, kidney, or metabolic disease requiring medical treatment.
* There are chronic progressive neurological disorders.
* Patients who have not yet recovered from the acute toxic effects of prior treatment.
* Presence of active or uncontrolled infections that require systemic treatment (except for mild genitourinary and upper respiratory tract infections).
* Female subjects who are capable of becoming pregnant and plan to become pregnant within 2 years after cell transfusion; Or a male subject whose partner plans to become pregnant within 2 years of cell transfusion.
* The researchers assessed that there were other conditions that were not suitable for inclusion.

Where this trial is running

Suzhou, Jiangsu

• The Second Affiliated Hospital of Soochow University — Suzhou, Jiangsu, China (RECRUITING)

Study contacts

• Study coordinator: Bingzong Li, doctor

Conditions: Relapsed/Refractory Multiple Myeloma