EphA2 siRNA in Treating Patients With Advanced or Recurrent Solid Tumors

Last updated: January 9, 2025
Sponsor: M.D. Anderson Cancer Center
Overall Status: Active - Not Recruiting

Phase

1

Condition

N/A

Treatment

Pharmacological Study

EphA2-targeting DOPC-encapsulated siRNA

Laboratory Biomarker Analysis

Clinical Study ID

NCT01591356
2011-0216
RP120214
NCI-2012-00755
NCI-2015-00745
P50CA093459
2011-0216
  • Ages > 18
  • All Genders

Study Summary

This phase I trial studies the side effects and best dose of EphA2 siRNA in treating patients with solid tumors that have spread to other places in the body and usually cannot be cured or controlled with treatment (advanced) or have come back after a period of improvement (recurrent). EphA2-targeting DOPC-encapsulated siRNA may slow the growth of tumor cells by shutting down the activity of a gene that causes tumor growth.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • All patients with histologic proof of advanced solid tumors, who are not candidatesfor known regimens or protocol treatments of higher efficacy or priority

  • Eastern Cooperative Oncology Group (ECOG) performance status =< 2

  • All patients (dose escalation and dose expansion phases) must be willing to undergopre- and post-treatment biopsies

  • For the dose escalation phase, the trial population will be limited to solid tumortypes

  • For dose expansion phase: patients must have EphA2 overexpression overall H-score of 3 or above in immunohistochemistry (IHC) evaluation; Clinical Laboratory ImprovementAmendments (CLIA) certified EphA2 IHC staining to be performed on formalin fixed,paraffin-embedded tissue sections using monoclonal EphA2 antibody; EphA2 expressionto be assessed through a combo of % of positive cells and staining intensity; the %of positive cells will be rated: 0 points (pts), 0 to 5%; 2 pts, 6 to 50%; 3 pts, 50%; the staining intensity will be rated as follows: 1 pt, weak intensity; 2 pts,moderate intensity; 3 pts, strong intensity; pts for expression and % of positivecells will be added; an overall score will be assigned; tumors to be categorizedinto 4 groups: negative (overall score 0), 5% cells stained, regardless ofintensity; weak expression (overall score 1), 1 - 2 pts; moderate expression (overall score 2), 3 - 4 pts; and strong expression (overall score 3), 5 - 6 pts;overall H-score of 3 or above will be defined as EphA2 overexpression in tumor cells

  • Measurable disease is defined as at least one lesion that can be accurately measuredin at least one dimension; at least one biopsiable lesion must be available; whenimaging (DCE-MRI, DW-MRI and PET-computed tomography [CT] imaging) is beingperformed for secondary objectives (dose level III [or when the dose reaches atleast 1,500 ug/m^2] and during the expansion phase) at least one lesion (>= 2 cm)not adjacent to the diaphragm will be required when measured by conventionaltechniques, including palpation, plain x-ray, CT, and MRI; a second lesionaccessible for biopsy must also be present; patients must have at least one 'targetlesion' to be used to assess response on this protocol as defined by ResponseEvaluation Criteria in Solid Tumors (RECIST); this may be one of the lesionsmentioned above; tumors within a previously irradiated field will be designated as 'non-target' lesions

  • Resolution of any effects of prior therapy (except alopecia) to National CancerInstitute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.03grade =< 1 and to baseline laboratory values as defined below

  • Hemoglobin (HGB) >= 9 g/dL

  • White blood cells (WBC) >= 3,000/mcL

  • Absolute neutrophil count (ANC) >= 1,500/mcL

  • Platelet (PLT) >= 100,000/mcL

  • Total bilirubin less than or equal to 1.5

  • Serum glutamic oxaloacetic transaminase (SGOT) and serum glutamate pyruvatetransaminase (SGPT) < 2.5 x institutional upper limit of normal (ULN)

  • Creatinine < 1.5 x ULN or creatinine clearance > 60 ml/min according toCockcroft-Gault formula

  • Neuropathy (sensory and motor) =< to CTCAE grade 1

  • Prothrombin time (PT) such that international normalized ratio (INR) is < 1.5 (or anin-range INR, usually between 2 and 3, if a patient is on a stable dose oftherapeutic warfarin or low molecular weight heparin) and a partial thromboplastintime (PTT) < 1.2 times control

  • Patients should be free of active infection requiring intravenous antibiotics

  • Any hormonal therapy directed at the malignant tumor must be discontinued at leastone week prior to registration (study enrollment); continuation of hormonereplacement therapy is permitted; stable regimens of hormonal therapy i.e. forprostate cancer (e.g. leuprolide, a gonadotropin-releasing hormone [GnRH] agonist),ovarian or breast cancer are not exclusionary

  • Any other prior therapy directed at the malignant tumor, including immunologicagents, must be discontinued at least three weeks prior to first dose of study drug (6 weeks for nitrosoureas or mitomycin C)

  • Female subject is either post-menopausal or surgically sterilized or willing to usean acceptable method of birth control (i.e., a hormonal contraceptive, intrauterinedevice, diaphragm with spermicide, condom with spermicide, or abstinence) for theduration of the study and for at least 3 months after completion of EphA2 siRNA-DOPCtherapy

  • Male subject agrees to use an acceptable method of contraception for the duration ofthe study

  • Patients must voluntarily sign an informed consent indicating that they are aware ofthe investigational nature of this study in keeping with the policies of thehospital

Exclusion

Exclusion Criteria:

  • Patients may not be receiving any other investigational agents and/or other therapyfor their cancer

  • History of allergic reactions attributed to compounds of similar chemical orbiologic composition to DOPC, Magnevist, or fluorodeoxyglucose (FDG)

  • Patients with active bleeding or pathologic conditions that carry high risk ofbleeding, such as a known bleeding disorder, coagulopathy, or tumor involving majorvessels

  • Patients with history or evidence upon physical examination of central nervoussystem (CNS) disease, including primary brain tumor, seizures not controlled withstandard medical therapy, any brain metastases

  • Patients with history of cerebrovascular accident (CVA, stroke), transient ischemicattack (TIA) or subarachnoid hemorrhage within 6 months of the first date oftreatment on this study

  • Patients with clinically significant cardiovascular disease; this includes:uncontrolled hypertension (greater than 140/90); myocardial infarction or unstableangina within 6 months prior to registration; New York Heart Association (NYHA)grade II or greater congestive heart failure; serious cardiac arrhythmia requiringmedication; grade II or greater peripheral vascular disease; patients withclinically significant peripheral artery disease, e.g., those with claudication,within 6 months of first date of treatment on this study

  • Patients whose circumstances do not permit completion of the study or the requiredfollow-up

  • Patients who are pregnant or nursing

  • History of human immunodeficiency virus (HIV) or HIV-positive patients oncombination antiretroviral therapy are ineligible

  • Patients whose tumor is not accessible for a core biopsy

  • Exclusion criteria (MRI specific):

  • Patients who are ineligible to undergo an MRI scan for reasons such asclaustrophobia or the presence of implanted devices or metallic foreign bodiesthat are not magnetic resonance (MR) compatible; patients with a known historyof allergic reaction to gadolinium contrast agents; patients with a history ofa glomerular filtration rate (GFR) of less than 60 or acute renal disease

  • Exclusion criteria (PET specific):

  • Pregnant or nursing women; extreme claustrophobia; weight near or greater than 350 pounds

Study Design

Total Participants: 49
Treatment Group(s): 3
Primary Treatment: Pharmacological Study
Phase: 1
Study Start date:
July 01, 2015
Estimated Completion Date:
April 30, 2025

Study Description

PRIMARY OBJECTIVES:

I. To determine the safety and tolerability (toxicity profile) of EphA2-targeting DOPC-encapsulated siRNA (EphA2 siRNA) delivered via neutral liposome (1,2-dioleoyl-sn-glycero-3-phosphatidylcholine or DOPC) administered intravenously in patients with advanced/recurrent malignancies.

II. To determine the maximal tolerated dose (MTD) or maximal administered dose (MAD) using a modified toxicity probability interval (mTPI) design.

SECONDARY OBJECTIVES:

I. To determine efficacy (EphA2 expression modulation) at the MTD or MAD. II. To evaluate the effect of EphA2 siRNA-DOPC on tumor and endothelial cell apoptosis.

III. To record the clinical activity (objective response, duration of response, and time to treatment progression) of intravenous (IV) EphA2 siRNA -DOPC.

IV. To describe the symptom burden of patients receiving siRNA-EphA2-DOPC treatment.

EXPLORATORY OBJECTIVES:

I. To determine the pharmacokinetic profile of siRNA-EphA2-DOPC in blood. II. To determine the effect of EphA2 siRNA-DOPC on tumor perfusion, apparent diffusion, and metabolism by radiographic imaging (dynamic contrast-enhanced-magnetic resonance imaging [DCE-MRI], diffusion weighted [DW]-MRI and fludeoxyglucose F-18-positron emission tomography [18FDG-PET]).

III. To determine the impact of EphA2 siRNA-DOPC on surrogate biomarkers in blood (cell-free deoxyribonucleic acid [DNA], plasma/serum markers [vascular endothelial growth factor (VEGF), caveolin 1 (CAV1), soluble EphrinA1], and exosomes).

OUTLINE: This is a dose-escalation study.

Patients receive EphA2-targeting DOPC-encapsulated siRNA IV over 120 minutes on days 1 and 4. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up periodically.

Connect with a study center

  • M D Anderson Cancer Center

    Houston, Texas 77030
    United States

    Site Not Available

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