A Dose Escalation and Cohort-Expansion Study of Oral eFT508 in Subjects With Advanced Solid Tumors

October 30, 2020 updated by: Effector Therapeutics

A Phase 1-2 Dose Escalation and Cohort-Expansion Study of Oral eFT508 in Subjects With Advanced Solid Tumors

This clinical trial is a Phase 1-2, open-label, sequential-group, dose-escalation and cohort-expansion study evaluating the safety, pharmacokinetics, pharmacodynamics, and antitumor activity of daily oral administration of eFT508.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

eFT508 is an oral, potent and highly selective inhibitor of mitogen-activated protein kinase interacting kinase (MNK) 1 and 2. Dysregulated translation of messenger RNA (mRNA) plays a role in the pathogenesis of multiple solid tumors and hematological malignancies. MNK1 and MNK2 integrate signals from several oncogenic and immune signaling pathways (including RAS, p38 and Toll-like receptors) by phosphorylating eukaryotic initiation of factor 4E (eIF4E) and key effector proteins. Phosphorylation of these regulatory proteins by MNK1 and MNK2 selectively regulates the stability and translation of a subset of cellular mRNA that control tumor growth, the tumor microenvironment and immune signaling. Nonclinical studies indicate that eFT508 shows activity against various types of solid tumors. These nonclinical studies support initiation of clinical development of eFT508 in patients with cancer.

Study Type

Interventional

Enrollment (Actual)

66

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Colorado
      • Denver, Colorado, United States, 80218
        • SCRI at HealthOne
    • Florida
      • Sarasota, Florida, United States, 34232
        • Florida Cancer Specialists
    • Tennessee
      • Nashville, Tennessee, United States, 37203
        • Tennessee Oncology, PLLC
    • Texas
      • Houston, Texas, United States, 77030
        • MD Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  2. Pathologically documented diagnosis of advanced solid tumor malignancy that progressed after appropriate prior therapy or has no potential for cure with currently available treatments.
  3. Measurable disease defined by Response Evaluation Criteria in Solid Tumors (RECIST) outside of any prior radiation field.
  4. At least 3 weeks post any treatments/therapies at the time of first dose.
  5. Adequate bone marrow function.
  6. Adequate hepatic function.
  7. Adequate renal function.
  8. Normal coagulation panel.
  9. Negative antiviral serology.
  10. Willingness to use effective contraception.

Exclusion Criteria:

  1. Known central nervous system malignancy.
  2. Gastrointestinal disease that may interfere with drug absorption.
  3. Significant cardiovascular disease.
  4. Significant ECG abnormalities.
  5. Ongoing risk of bleeding due to active peptic ulcer disease, bleeding diathesis, or requirement for systemic anticoagulants. Use of heparin or thrombolytic agents for local maintenance or clearance of a central venous catheter is permitted.
  6. Ongoing systemic bacterial, fungal or viral infection (with the exception of fungal infections of the skin or nails).
  7. Pregnancy or breastfeeding.
  8. Major surgery within 4 weeks before the start of study therapy.
  9. Prior solid organ or bone marrow progenitor cell transplantation.
  10. Prior therapy with any known inhibitor of MNK1 or MNK2.
  11. Ongoing immunosuppressive therapy, including systemic or enteric corticosteroids (can be using topical or inhaled corticosteroids).
  12. Use of drugs that might pose a risk of a drug-drug interaction within 4-7 days before the start of study therapy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: eFT508
Escalation cohort
Will be given orally once or twice daily. Each treatment cycle = 21 days.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Maximum tolerated dose (MTD)/Recommended dose (RD)
Time Frame: Up to one year
Up to one year
Overall response rate (ORR)
Time Frame: Up to three years
Up to three years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Safety (Number of participants with treatment-related adverse events as assessed by Common Terminology Criteria for Adverse Events (CTCAE v. 4.03))
Time Frame: Up to three year
Number of participants with treatment-related adverse events as assessed by Common Terminology Criteria for Adverse Events (CTCAE v. 4.03)
Up to three year
Plasma concentration of eFT508 as characterized by maximum serum concentration (Cmax)
Time Frame: Different time points up to 336 hours
Different time points up to 336 hours
Plasma concentration of eFT508 as characterized by Area Under the Curve (AUC)
Time Frame: Different time points up to 336 hours
Different time points up to 336 hours
Changes in eIF4E phosphorylation in peripheral blood cells (PBMCs)
Time Frame: Up to Day 14
Up to Day 14
Tumor control evaluated by modified RECIST criteria v 1.1
Time Frame: Up to three years
Up to three years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Director: Jeremy Barton, MD, Effector Therapeutics

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 3, 2015

Primary Completion (Actual)

January 11, 2019

Study Completion (Actual)

March 22, 2019

Study Registration Dates

First Submitted

November 9, 2015

First Submitted That Met QC Criteria

November 12, 2015

First Posted (Estimate)

November 16, 2015

Study Record Updates

Last Update Posted (Actual)

November 2, 2020

Last Update Submitted That Met QC Criteria

October 30, 2020

Last Verified

October 1, 2020

More Information

Terms related to this study

Other Study ID Numbers

  • eFT508-0001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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