MedPath

A Study to Evaluate Safety, Tolerability and Preliminary Activity of AGX101 in Participants With Advanced Solid Tumors

Phase 1
Recruiting
Conditions
Cancer
Advanced Cancer
Locally Advanced Carcinoma
Metastatic Solid Tumor
Breast Cancer
Prostate Cancer
Colorectal Cancer
Pancreatic Cancer
Liver Cancer
Angiosarcoma
Interventions
Registration Number
NCT06440005
Lead Sponsor
Angiex, Inc.
Brief Summary

AGX101 is an antibody-drug conjugate (ADC) therapy for tumor-forming cancers. The purpose of this study is to learn about AGX101 effects and safety at various dose levels in an all-comers advanced solid cancer patient population. AGX101will be administered intravenously.

Dosing of AGX101 will be repeated once every 3, 6 or 9 weeks. Participants may continue study treatment until disease progression, unacceptable toxicity, or consent withdrawal. Subjects will attend an end of treatment visit and will receive two safety follow-up telephone contacts up to 90 days following the last dose of study drug.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
80
Inclusion Criteria
  • Histologically confirmed unresectable, locally advanced, or metastatic solid tumors.
  • Refractory to or relapsed after all standard therapies known to provide proven clinical benefit, unless the patient is not a candidate for standard treatment, there is no standard treatment, or the patient refuses standard treatment after expressing an understanding of all available therapies with proven clinical benefit
  • Willing to authorize use of existing archival tissue, unless otherwise discussed with Sponsor
  • Time since the last dose of prior therapy to treat underlying malignancy (including other investigational therapy): Systemic cytotoxic chemotherapy: ≥ the duration of the most recent cycle of the previous regimen (with a minimum of 2 weeks for all, except 6 weeks for systemic nitrosourea or systemic mitomycin-C); Biologic therapy (eg, antibodies): ≥ 3 weeks; Small molecule therapies: ≥ 5 × half-life
  • Have an ECOG performance status of 0 to 1
  • Have adequate organ function
  • LVEF ≥ 50%, as determined on cardiac ECHO or cardiac multiple-gated acquisition (MUGA) scan
  • Highly effective contraception for both male and female patients throughout the study
Exclusion Criteria
  • Colorectal cancer patients with unresected colorectal tumors and non-small-cell lung cancer with predominant squamous histology (ie, squamous cell carcinoma of the lung) are excluded unless otherwise discussed and approved by Sponsor
  • Clinically unstable central nervous system (CNS) tumors or brain metastasis (stable and/or asymptomatic CNS metastases allowed)
  • Have not recovered to ≤ Grade 1 or baseline from all AEs due to previous therapies (patients with ≤ Grade 2 neuropathy, endocrine-related irAEs, or other AEs may be eligible after discussion with the Sponsor)
  • Has an active vasculitis that has required systemic treatment in the past 2 years prior to starting study treatment
  • Significant (ie, ≥ Grade 2) ocular disturbances
  • Variceal bleeding within 6 months prior to treatment, currently untreated or incompletely treated varices with bleeding, or who otherwise are at a high risk of bleeding
  • Any other concurrent antineoplastic treatment except for allowed local radiation of lesions for palliation (to be considered non-target lesions after treatment) and hormone ablation
  • Uncontrolled or life-threatening symptomatic concomitant disease, including known symptomatic HIV positive with an AIDS defining opportunistic infection within the last year, known symptomatic active hepatitis B or C, or known active tuberculosis
  • Has undergone a major surgery within 3 weeks prior to starting study treatment or has inadequate healing or recovery from complications of surgery prior to starting study treatment
  • Has received prior radiotherapy within 2 weeks prior to starting study treatment
  • Has or had a potentially life-threatening second malignancy requiring systemic treatment within the last 3 years, or which would impede evaluation of treatment response
  • Clinically significant cardiovascular disease
  • Patients on a potent CYP3A inhibitor or CPY3A inducer who cannot be changed to another medication
  • Has an active infection requiring concurrent systemic antibiotic therapy
  • A woman of child-bearing potential (WOCBP) who has a positive pregnancy test prior to treatment
  • Is breastfeeding or expecting to conceive or father children within the projected duration of the study

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Dose Escalation PhaseAGX101AGX-101, initial 90-minute IV infusion, second 60-minute IV infusion and 30 minute subsequent IV infusions on Day 1 of every 3, 6 or 9-week cycle in Dose Escalation Phase. Dose escalation will be carried out in sequential cohorts of escalating doses, with an expansion cohort in advanced angiosarcoma.
Dose Expansion PhaseAGX101AGX-101, initial 90-minute IV infusion, second 60-minute IV infusion and 30 minute subsequent IV infusions on Day 1 of every every 3, 6 or 9-week cycle in Dose Escalation Phase. Dose expansion will be carried out with a selected dose and selected cancer type.
Primary Outcome Measures
NameTimeMethod
Number of participants with adverse eventsScreening through end of treatment, approximately 6 months and up to 3 years

Evaluation of the incidence, severity, and duration of adverse events

Acceptable maximum tolerated dose for participants21 days following the first dose of AGX101 (Day 1 through Day 21)

Maximum tolerated dose (MTD) and the dose-limiting toxicities (DLTs) of AGX101 will be characterized

Secondary Outcome Measures
NameTimeMethod
Terminal elimination half life (PK)22 days following the first dose of AGX101 (Day 1 through Day 22)

Determination of the terminal elimination half-life (t½)

Overall SurvivalApproximately 6 months and up to 3 years
AUC (PK)22 days following the first dose of AGX101 (Day 1 through Day 22)

Determination of the AUC in 1 dosing interval

Cmax (PK)22 days following the first dose of AGX101 (Day 1 through Day 22)

Determination of the Cmax concentration over a dosing interval, systemic clearance, volume of distribution at steady-state (Vss), and accumulation ratio from first dose to steady-state

Efficacy as measured by Duration of Response (DoR) Assessed by InvestigatorApproximately 6 months and up to 3 years

Determination of the duration of response (DoR)

Efficacy as measured by Disease Control Rate (DCR)Approximately 6 months and up to 3 years

Determination of the disease control rate (DCR)

Efficacy as measured by Proportion of Participants with Progression Free Survival (PFS) According to RECIST v1.1 Evaluated by the InvestigatorApproximately 6 months and up to 3 years

Determine progression-free survival (PFS)/PFS assessed per immune-related response evaluation criteria (iPFS).

Number of Participants with Antidrug Antibodies (ADA) to AGX101Approximately 6 months and up to 3 years

Incidence and titers of ADA will be measured

Efficacy as measured by Proportion of Participants with Objective Response Rate (ORR) According to RECIST v1.1 Evaluated by the InvestigatorApproximately 6 months and up to 3 years

Determination the objective response rate (ORR)

Efficacy as measured by Duration of TreatmentApproximately 6 months and up to 3 years

Trial Locations

Locations (2)

NEXT Oncology

🇺🇸

San Antonio, Texas, United States

Sarah Cannon Research Center

🇺🇸

Nashville, Tennessee, United States

© Copyright 2025. All Rights Reserved by MedPath