A Phase 1 Study to Assess Safety, Pharmacokinetics, and Pharmacodynamics of PLX73086 as a Single Agent in Subjects With Advanced Solid Tumors and in Subjects With Locally Advanced or Refractory Tenosynovial Giant Cell Tumor (TGCT)

Plexxikon3 sites in 1 country11 target enrollmentFebruary 2016

ConditionsSolid Tumors Tenosynovial Giant Cell Tumor Synovitis, Pigmented Villonodular

InterventionsPLX73086

DrugsPLX73086

Overview

Phase: Phase 1
Intervention: PLX73086
Conditions: Solid Tumors
Sponsor: Plexxikon
Enrollment: 11
Locations: 3
Primary Endpoint: Safety of PLX73086, as measured by adverse events and serious adverse events [Part 1 and Part 2 of research study]
Status: Terminated
Last Updated: 7 years ago

Overview Investigators Eligibility Criteria Arms & Interventions Outcomes Sites Similar Trials

Overview

Brief Summary

The purpose of this research study is to evaluate safety, pharmacokinetics and preliminary efficacy of the investigational drug PLX73086 in subjects with solid tumors including subjects with locally advanced or refractory tenosynovial giant cell tumor (TGCT).

Registry

clinicaltrials.gov

Start Date

February 2016

End Date

January 2018

Last Updated

7 years ago

Study Type

Interventional

Study Design

Single Group

Sex

All

Investigators

Sponsor

Plexxikon

Responsible Party

Sponsor

Eligibility Criteria

Inclusion Criteria

•Age ≥ 18 years old.
•Part 1: Subjects with solid tumors that are refractory to, relapsed after or intolerant to standard therapy, or for whom no standard therapy exists or who are considered by the investigator to be inappropriate for standard therapy.
•Part 2: Subjects with histologically confirmed, locally advanced or refractory TGCT (including metastatic disease) that has been deemed unresectable by an orthopedic surgeon or similar qualified personnel.
•Measurable disease by RECIST 1.1 criteria.
•Women of child-bearing potential must have a negative pregnancy test within 7 days prior to initiation of dosing and must agree to use an acceptable method of birth control from the time of the negative pregnancy test up to 3 months after the last dose of study drug, Fertile men must also agree to use an acceptable method of birth control while on study drug and up to 3 months after the last dose of study drug.
•All associated toxicity from previous or concurrent cancer therapy must be resolved (to ≤ Grade 1 or Baseline) prior to study treatment administration.
•Willingness and ability to provide written informed consent prior to any study-related procedures and comply with all study requirements.
•Eastern Cooperative Oncology Group (ECOG) Performance Status 0-
•Life expectancy ≥ 3 months.
•Adequate hematologic, hepatic, and renal function.

Exclusion Criteria

•Symptomatic brain metastases.
•Investigational drug use within 14 days (or 5 half-lives, whichever is longer) of the first dose of PLX
•Major surgical procedure, open biopsy (excluding skin cancer resection), or significant traumatic injury within 14 days of initiating study drug (unless the wound has healed) or anticipation of the need for major surgery during the study.
•Active secondary malignancy unless the malignancy is not expected to interfere with the evaluation of safety and is approved by the Medical Monitor. Examples of the latter include basal or squamous cell carcinoma of the skin, in-situ carcinoma of the cervix, and isolated elevation of prostate-specific antigen. Subjects with a completely treated prior malignancy and no evidence of disease for ≥ 2 years are eligible.
•Inability to take oral medication or significant nausea and vomiting, malabsorption, external biliary shunt, or significant bowel resection that would preclude adequate absorption.
•Baseline mean QTcF ≥ 450 msec (for males) or ≥ 470 msec (for females) at Screening.
•Clinically significant cardiac arrhythmias including bradyarrhythmias and/or subjects who require anti-arrhythmic therapy (excluding beta blockers or digoxin). Subjects with controlled atrial fibrillation are not excluded
•Congenital long QT syndrome or subjects taking concomitant medications known to prolong the QT interval (e.g., tricyclics, azithromycin, methadone).
•History of clinically significant cardiac disease or congestive heart failure \> New York Heart Association (NYHA) class
•Subjects must not have unstable angina (anginal symptoms at rest) or new-onset angina within the last 3 months or myocardial infarction within the past 6 months.

Arms & Interventions

PLX73086

Part 1: Open-label, sequential PLX73086 dose escalation in approximately 36 solid tumors subjects. Part 2: Extension cohort at the recommended phase 2 dose (RP2D) of PLX73086 in approximately 30 subjects with histologically confirmed, unresectable, locally advanced or refractory TGCT (including metastatic disease).

Intervention: PLX73086