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RecruitingInterventionalPhase 1

A Phase 1, First-in-Human, Multicenter, Open-Label, Dose Escalation and Dose-Expansion Study of Single-Agent ISB 2001 in Subjects With Relapsed/Refractory Multiple Myeloma

NCT ID: NCT05862012Sponsor: Ichnos Sciences SALast updated: 2026-04-01

Summary

This study is a first-in-human, Phase 1, open-label study that will evaluate safety and anti-myeloma activity of ISB 2001 in participants with relapsed/refractory multiple myeloma (R/R MM).

Detailed description

The study enrolls participants with R/R MM that have been treated with immunomodulatory drugs (IMiDs), proteasome inhibitors, and anti-CD38 therapies either in combination or as a single agent and are refractory to, or intolerant of, established therapies known to provide clinical benefit in MM. The study is conducted in two parts: Part 1 dose escalation and Part 2 dose expansion. Dose escalation continued until the maximum planned dose was reached. Dose expansion cohorts were initiated to further confirm safety and optimal biologically active dose. Participants receive ISB 2001 until disease progression, unacceptable toxicity occurs, any criterion for stopping the study treatment, or participant withdrawal from the study.

Arms & interventions

  • DrugISB 2001

    Participants receive escalating doses of ISB 2001

  • DrugISB 2001

    Participants receive injection of ISB 2001 as determined in Part 1.

Outcome measures

Primary

  • Frequency and Severity Of Treatment-Emergent Adverse Events (TEAEs)

    Time frame: Up to 18 months

  • Number of Dose-Limiting Toxicities (DLT) During the First 28 Days After the First Administration of ISB 2001 (Cycle 1) in Each Cohort (Part 1)

    Time frame: Up to 28 days

Secondary

  • Maximum Concentration (Cmax) of ISB 2001 in Serum

    Time frame: Up to 28 days

  • Time to Reach Maximum Concentration (Tmax) of ISB 2001 in Serum

    Time frame: Up to 28 days

  • Area Under the Concentration Time Curve in Dosing Intervals (AUC0-tau) of ISB 2001 in Serum

    Time frame: Up to 28 days

  • Area Under the Concentration Time Curve From Zero to Time t (AUC0-t) of ISB 2001 in Serum

    Time frame: Up to 28 days

  • Percent Incidence of Anti-Drug Antibody (ADA), Neutralizing Antibody (nAb) and Titer of ADA From Baseline Until End-of-Treatment (EOT)

    Time frame: Baseline to 18 months

  • Overall Response Rate (ORR) Based on International Myeloma Working Group (IMWG)

    Time frame: 18 months

  • Complete Response Rate (CRR) Based on International Myeloma Working Group (IMWG)

    Time frame: 18 months

  • Duration of Response (DOR) Based on International Myeloma Working Group (IMWG)

    Time frame: 18 months

  • Time to Progression (TTP)

    Time frame: 18 months

  • Time to Next Treatment (TTNT)

    Time frame: 18 months

  • Time to Response (TTR)

    Time frame: 18 months

  • Progression Free Survival (PFS)

    Time frame: 18 months

  • Overall Survival (OS)

    Time frame: 18 months

Eligibility criteria

Sex: AllAge: 18 Years and olderHealthy volunteers: No
Inclusion Criteria: 1. Participants with pathologically confirmed MM with measurable M-protein: serum and/or 24 hour urine, serum-free light chains or measurable isolated plasmacytoma 2. Have an Eastern Cooperative Oncology Group (ECOG) performance status score of 2 or less 3. Must have adequate hematologic, hepatic, renal, and cardiac functions Exclusion Criteria: 1. Active malignant central nervous system involvement 2. Uncontrolled infection requiring systemic antibiotic therapy or other serious infection prior to C1D1 3. History of autoimmune disease requiring systemic immunosuppressive therapy 4. Any concurrent or uncontrolled medical, comorbid, psychiatric or social condition that would limit compliance with study procedures, interfere with the study results, substantially increase the risk of AEs, compromise ability to provide written informed consent or, in the opinion of the Investigator, constitute a hazard for participating in this study. 5. Female subjects who are lactating and breastfeeding or have a positive pregnancy test during the screening period or on Day 1 before first dose of ISB 2001.

Study locations (10)

Standford Cancer Institute

Palo Alto, California, 94304

Recruiting
Michaela Liedtke · Contact

Sylvester Cancer Center

Miami, Florida, 33136

Active Not Recruiting

Winship Cancer Institute

Atlanta, Georgia, 30322

Recruiting
Nishi Shah, MD · Contact

University of Chicago Medical Center

Chicago, Illinois, 60637

Recruiting
Benjamin Derman, MD · Contact

Beth Israel Deaconess Medical Center

Boston, Massachusetts, 02215

Recruiting
Shonali Midha, MD · Contact

Montefiore Medical Center

The Bronx, New York, 10467

Recruiting
David Levitz · Contact

University of North Carolina

Chapel Hill, North Carolina, 27599

Recruiting
Eben Lichtman · Contact

Tennessee Oncology

Nashville, Tennessee, 37203

Active Not Recruiting

Virginia Commonwealth University (VCU)

Richmond, Virginia, 23298

Active Not Recruiting

Froedtert Hospital & the Medical College of Wisconsin

Milwaukee, Wisconsin, 53226

Recruiting
Binod Dhakal, MD · Contact

References

  • Carretero-Iglesia L, Hall OJ, Berret J, Pais D, Estoppey C, Chimen M, Monney T, Loyau J, Dreyfus C, Macoin J, Perez C, Menon V, Gruber I, Laurendon A, Caro LN, Gudi GS, Matsuura T, van der Graaf PH, Blein S, Mbow ML, Croasdale-Wood R, Srivastava A, Dyson MR, Matthes T, Kaya Z, Edwards CM, Edwards JR, Maiga S, Pellat-Deceunynck C, Touzeau C, Moreau P, Konto C, Drake A, Zhukovsky EA, Perro M, Pihlgren M. ISB 2001 trispecific T cell engager shows strong tumor cytotoxicity and overcomes immune escape mechanisms of multiple myeloma cells. Nat Cancer. 2024 Oct;5(10):1494-1514. doi: 10.1038/s43018-024-00821-1. Epub 2024 Sep 11.(PubMed)