Purpose

This is a phase I, First-in-Human (FIH), open-label study to evaluate the safety, tolerability, pharmacokinetic (PK) profile, and preliminary efficacy of AB248 as monotherapy OR in combination with pembrolizumab in adult participants with locally advanced or metastatic solid tumors. The study will consist of a dose escalation and a dose expansion stage.

Conditions

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Age ≥18 years of age at the time consent is signed. - Has adequate end organ function per laboratory testing. - Pregnancy prevention requirements - Has measurable disease per RECIST 1.1 as assessed by the local site Investigator/radiology. - Has a performance status of 0 or 1 on Eastern Cooperative Oncology Group scale. - Histologic documentation of incurable, locally advanced or metastatic tumor of the type being evaluated in individual cohorts

Exclusion Criteria

  • Has a diagnosis of immunodeficiency. - Has a history of a previous, additional malignancy, unless potentially curative treatment has been completed, with no evidence of malignancy for 5 years. - Has known active CNS metastases and/or carcinomatous meningitis. - Has an active autoimmune disease that has required systemic treatment in the past 2 years. - Has an active infection requiring systemic therapy. - Inability to comply with study and follow-up procedures. - Has had a severe hypersensitivity reaction (Grade ≥3) to treatment with pembrolizumab, another monoclonal antibody, or has history of any hypersensitivity to any components of the study treatments or any of their excipients. - Has received prior systemic anticancer therapy including investigational agents within 4 weeks (or, if shorter, within 5 half-lives for kinase inhibitors) prior to first dose of study treatment. - Has received prior radiotherapy within 2 weeks of start of study treatment or has had a history of radiation pneumonitis. - Receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior the first dose of study treatment. - Has received previous treatment with another agent targeting the IL-2, IL-7, or IL-15 receptors. - Is expected to require any other form of antineoplastic therapy while on study

Study Design

Phase
Phase 1
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Sequential Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
AB248 Monotherapy Dose-Escalation
AB248 will be administered intravenously as a single agent
  • Biological: AB248
    Intravenous infusion of AB248: CD8+ T cell selective interleukin-2 investigational drug
Experimental
AB248 + pembrolizumab Combination Dose-Escalation
AB248 and pembrolizumab will be administered intravenously
  • Biological: AB248
    Intravenous infusion of AB248: CD8+ T cell selective interleukin-2 investigational drug
  • Biological: pembrolizumab
    Intravenous infusion of pembrolizumab
    Other names:
    • KEYTRUDA®
Experimental
AB248 Monotherapy Indication Expansion
AB248 will be administered intravenously as a single agent in disease specific cohorts
  • Biological: AB248
    Intravenous infusion of AB248: CD8+ T cell selective interleukin-2 investigational drug
Experimental
AB248 + pembrolizumab Combination Indication Expansion
AB248 and pembrolizumab will be administered intravenously in disease specific cohorts
  • Biological: AB248
    Intravenous infusion of AB248: CD8+ T cell selective interleukin-2 investigational drug
  • Biological: pembrolizumab
    Intravenous infusion of pembrolizumab
    Other names:
    • KEYTRUDA®

Recruiting Locations

Massachusetts General Hospital
Boston, Massachusetts 02114

More Details

Status
Recruiting
Sponsor
Asher Biotherapeutics, Inc.

Study Contact

Clinical Operations
650-410-7588
clinops@asherbio.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.