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Study of 23ME-01473 in Patients With Advanced Solid Malignancies

A Phase 1/2a, Multicenter, Open-label, Dose Escalation and Expansion Study of Intravenously Administered 23ME-01473 in Participants With Advanced Solid Malignancies

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06290388
Enrollment
5
Registered
2024-03-04
Start date
2024-03-07
Completion date
2024-11-10
Last updated
2024-12-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Solid Tumor

Keywords

Cancer, Phase 1, Solid Tumor, Oncology, NK, ULBP6, Immunotherapy

Brief summary

This is a first-in-human open-label study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary clinical activity of 23ME-01473 given by intravenous infusion in participants with advanced solid cancers who have progressed or are intolerant of available standard therapies.

Detailed description

This study includes a dose escalation portion to determine the maximum tolerated dose (MTD) and/or the recommended phase 2 dose (RP2D) to evaluate the clinical activity of 23ME-01473 and further evaluate its safety, tolerability, pharmacokinetics, and pharmacodynamics in participants with solid malignancies.

Interventions

DRUG23ME-01473

23Me-01473 given by intravenous infusion

Sponsors

23andMe, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 110 Years
Healthy volunteers
No

Inclusion criteria

1. Phase 1: Adults ≥ 18 years of age 2. Phase 1: Histologically-diagnosed locally advanced (unresectable), or metastatic carcinoma or sarcoma that has progressed after standard therapy for the specific tumor type. 3. Adults 18+: Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 4. Life expectancy ≥ 12 weeks 5. Phase 1: Participants with evaluable disease are eligible regardless of tumor type, RECIST 1.1 can be used to assess disease progression.

Exclusion criteria

1. Females who are pregnant (positive serum pregnancy test within 7 days prior to study drug administration) or breastfeeding. 2. Immune-Related Medical History 1. Active autoimmune disease that has required systemic disease-modifying or immunosuppressive treatment within the last 2 years 2. Receipt of systemic immunosuppressive therapy (e.g. steroids) within 4 weeks prior to the start of study drug administration 3. History of idiopathic pulmonary fibrosis, interstitial lung disease, organizing pneumonia, non-infectious pneumonia that required steroids, or evidence of active, non-infectious pneumonitis 4. History of Grade ≥ 3 immune-mediated toxicity 3. Prior allogeneic or autologous bone marrow transplant, or other solid organ transplant 4. History of a positive test for: 1. Hepatitis C virus (HCV) infection, except for those who have completed curative therapy for HCV and have undetectable HCV RNA 2. Hepatitis B virus (HBV) infection, except for those who are receiving treatment with HBV-active nucleos(t)ide antiviral therapy at the time of study entry and have undetectable HBV DNA 3. Human Immunodeficiency Virus (HIV) infection, except those who meet the following criteria: CD4+ T cells ≥ 350 cells/μL, no history of Acquired Immunodeficiency Syndrome (AIDS)-defining opportunistic infections, HIV RNA \< 50 copies/mL, and on a stable antiretroviral regimen for at least 3 months 5. Prior anticancer therapy, including chemotherapy, targeted therapy, biological therapy or immune-checkpoint inhibitors within 4 weeks or 5 drug half-lives (whichever is shorter) 6. History of another malignancy in the previous 2 years, unless cured by surgery alone and continuously disease free. 7. Uncontrolled or symptomatic CNS (central nervous system) metastases and/or carcinomatous meningitis 8. Recent history (within 6 months) of serious cardiovascular disease

Design outcomes

Primary

MeasureTime frame
Phase 1:Incidence and severity of dose-limiting toxicities (DLTs)First dose through 21 days post dose
Phase 1: Incidence and severity of adverse events (AEs)From Screening through 90 days post treatment
Phase 1 Incidence and severity of serious adverse events (SAEs)From Screening through 90 days post treatment
ORR based on investigator assessment against RECIST 1.1 criteriaFrom baseline until disease progression (up to 5 years)

Secondary

MeasureTime frameDescription
Disease Control Rate (DCR)From baseline until disease progression (up to 5 years)Disease control rate based on investigator assessment against RECIST 1.1 criteria
Progression free survival (PFS)From baseline until disease progression (up to 5 years)Progression free survival based on investigator assessment against RECIST 1.1 criteria
Time of maximum serum concentration (Tmax) following a single dose of 23ME-01473[Time Frame: Cycle 1 (21 days, from Cycle 1 Day 1 predose to Cycle 2 Day 1 predose)]
Area under the concentration-time curve from zero to the last measurable concentration (AUClast) following a single dose of 23ME-01473[Time Frame: Cycle 1 (21 days, from Cycle 1 Day 1 predose to Cycle 2 Day 1 predose)]
Area under the concentration-time curve from zero extrapolated to infinity (AUCinf) following a single dose of 23ME-01473[Time Frame: Cycle 1 (21 days, from Cycle 1 Day 1 predose to Cycle 2 Day 1 predose)]
Last measurable serum concentration (Clast) following a single dose of 23ME-01473[Time Frame: Cycle 1 (21 days, from Cycle 1 Day 1 predose to Cycle 2 Day 1 predose)]
Maximum serum concentration (Cmax) following multiple doses of 23ME-01473[Time Frame: Cycle 4 (21 days, from Cycle 4 Day 1 predose to Cycle 5 Day 1 predose)]
Time of maximum serum concentration (Tmax) following multiple doses of 23ME-01473[Time Frame: Cycle 4 (21 days, from Cycle 4 Day 1 predose to Cycle 5 Day 1 predose)]
Area under the concentration-time curve from time zero to the end of the dosing interval (AUCtau) following multiple doses of 23ME-01473[Time Frame: Cycle 4 (21 days, from Cycle 4 Day 1 predose to Cycle 5 Day 1 predose)]
Serum concentration at the end of the dosing interval (Ctau) following multiple doses of 23ME-01473[Time Frame: Cycle 4 (21 days, from Cycle 4 Day 1 predose to Cycle 5 Day 1 predose)]
Terminal half-life (T1/2) following multiple doses of 23ME-01473[Time Frame: Cycle 4 (21 days, from Cycle 4 Day 1 predose to Cycle 5 Day 1 predose)]
Terminal half-life (T1/2) following a single dose of 23ME-01473[Time Frame: Cycle 1 (21 days, from Cycle 1 Day 1 predose to Cycle 2 Day 1 predose]
Phase 1: Prevalence and incidence of antidrug antibodies (ADA) to 23ME-01473From first dose up to 5 days post treatment discontinuation
Phase 1: Objective response rate (ORR)From baseline until disease progression (up to 5 years)ORR based on investigator assessment against RECIST 1.1 criteria
Duration of response (DoR)From baseline until disease progression (up to 5 years)Duration of response based on investigator assessment against RECIST 1.1 criteria

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026