Status:

TERMINATED

Study of MT-5111 in HER2-positive Solid Tumors

Lead Sponsor:

Molecular Templates, Inc.

Conditions:

HER2-positive Solid Cancers

Eligibility:

All Genders

18+ years

Phase:

PHASE1

Brief Summary

This will be a Phase 1b, first in human, open-label, dose escalation and expansion study of MT-5111 (a recombinant fusion protein) given as monotherapy in subjects with HER2-positive solid tumors

Detailed Description

This study will be conducted in two parts: Part A (Dose Escalation): The purpose of Part A is to determine the maximum tolerated dose (MTD) or recommended Phase 2 dose (RP2D). Part A will include any...

Eligibility Criteria

Inclusion

  • Histologically confirmed, unresectable, locally advanced or metastatic solid cancers:
  • Part A (Dose-Escalation): All HER2-positive solid cancers are eligible
  • Part B (Dose-Expansion): Any type of HER2-positive solid cancer, including breast cancer, and gastric or gastroesophageal adenocarcinomas (GEA).
  • HER2-positive in the latest tumor sample tested for HER2 (testing to be done on a metastatic lesion in cases of metastatic cancers).
  • Relapsed or refractory to or intolerant of existing therapy(ies)
  • At least 1 measurable or evaluable lesion according to RECIST 1.1 (Subjects with evaluable disease only may be included in the dose escalation phase)
  • ECOG performance score of ≤ 1
  • Adequate Bone marrow function as determined by:
  • Absolute neutrophil count (ANC) ≥ 1,000/mm3
  • Platelet count ≥ 75,000 mm³ and
  • Hemoglobin ≥ 8.0 g/dL
  • Red blood cell transfusion within 2 weeks of study treatment start is allowed if hemoglobin levels remain stable
  • Kidney function:
  • Creatinine clearance (CLcr) ≥ 50 mL/min either measured or estimated using the Cockcroft-Gault formula
  • Cardiac Function:
  • Left ventricular ejection fraction (LVEF) ≥ 55% on the echocardiogram (ECHO) assessment (preferred), or multigated acquisition (MUGA) scan, and QTcF ≤ 480 ms for women and QTcF ≤ 450 ms for men \[average from three QTcF values on the triplicate 12-lead electrocardiogram (ECG)\] at baseline
  • Hepatic function:
  • Total bilirubin ≤ 1.5 x ULN, or ≤ 3 x ULN for subjects with Gilbert's Syndrome and
  • AST ≤ 3 x ULN (or ≤ 5 x ULN if liver metastasis) and ALT ≤ 3 x ULN (or ≤ 5 x ULN if liver metastasis)

Exclusion

  • History or current evidence of another tumor that is histologically distinct from the tumor under study
  • Current evidence of new or growing CNS metastases during screening
  • Subjects with known CNS metastases will be eligible if they meet protocol specified criteria
  • Evidence of CTCAE Grade \>1 toxicity before the start of treatment, except for hair loss and those Grade 2 toxicities listed as permitted in other eligibility criteria
  • History or evidence of significant cardiovascular disease
  • Current evidence of active, uncontrolled hepatitis B virus, hepatitis C virus, human immunodeficiency virus (HIV) (evidenced by detectable viral load by PCR) or acquired immunodeficiency syndrome (AIDS) related illness
  • Current evidence of ≥ grade 2 underlying pulmonary disease
  • Certain exclusionary prior treatments

Key Trial Info

Start Date :

November 12 2019

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

April 27 2023

Estimated Enrollment :

50 Patients enrolled

Trial Details

Trial ID

NCT04029922

Start Date

November 12 2019

End Date

April 27 2023

Last Update

June 18 2023

Active Locations (30)

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Page 1 of 8 (30 locations)

1

Mayo Clinic (Arizona)

Phoenix, Arizona, United States, 85054

2

St. Joseph Heritage Healthcare

Fullerton, California, United States, 92835

3

Cancer and Blood Specialty Clinic

Los Alamitos, California, United States, 90720

4

Cedars-Sinai Medical Center

Santa Monica, California, United States, 90048