Testing the Combination of the Anticancer Drugs ZEN003694 and Binimetinib in Patients With Advanced/Metastatic or Unresectable Solid Tumors With RAS Alterations and Triple Negative Breast Cancer

  • STATUS
    Recruiting
  • End date
    Mar 14, 2024
  • participants needed
    18
  • sponsor
    National Cancer Institute (NCI)
Updated on 23 July 2022

Summary

This phase I trial tests the safety, side effects, and best dose of ZEN003694 in combination with Binimetinib in treating patients with solid tumors that carry RAS alterations and that have spread to other places in the body (advanced/metastatic) or cannot be removed by surgery (unresectable). ZEN003694 is an oral medication with potential anticancer activity. It is an inhibitor of a family of proteins called bromodomain and extra-terminal (BET) which play important role during development and cellular growth. ZEN003694 may stop the growth of tumor cells that produce BET. Binimetinib is in a class of medications called kinase inhibitors. It works by blocking the action proteins called MEK1 and MEK2, that signal cancer cells to multiply. It may help keep cancer cells from growing and spreading. There is pre-clinical evidence that using ZEN003694 and binimetinib together may shrink or stabilize cancers studied in this trial. There are two parts of this study; dose escalation and dose expansion. In the dose escalation part of this study, different people will get different doses of the study drugs ZEN003694 and binimetinib. In the dose expansion part of this study, the highest dose with manageable side effects will be given to additional people. This will help to understand the side effects that may happen with this drug combination.

Description

PRIMARY OBJECTIVES:

I. To determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of BET bromodomain inhibitor ZEN-3694 (ZEN003694 [ZEN-3694]) and binimetinib when given in combination in patients with advanced or metastatic solid tumors with rat sarcoma virus oncogene homolog (RAS) pathway alterations. (Part 1 [Dose Escalation]) II. To evaluate the safety and toxicity of ZEN003694 (ZEN-3694) and binimetinib when given in combination. (Part 2 [Dose Expansion])

SECONDARY OBJECTIVES:

I. To determine the safety and tolerability of ZEN003694 (ZEN-3694) and binimetinib when given in combination in patients with advanced or metastatic solid tumors with RAS pathway alterations. (Part 1 [Dose Escalation]) II. To characterize the pharmacokinetics (PK) of ZEN003694 (ZEN-3694) when given in combination with binimetinib. (Part 1 [Dose Escalation]) III. To observe and record the preliminary antitumor activity of ZEN003694 (ZEN-3694) and binimetinib when given in combination. (Part 1 [Dose Escalation]) IV. To determine the effects of ZEN003694 (ZEN-3694) and binimetinib when given in combination on patient survival and other metrics of clinical activity. (Part 2 [Dose Expansion]) IVa. To evaluate objective response rate (ORR). IVb. To evaluate progression-free survival (PFS). IVc. To evaluate duration of response (DOR). IVd. To evaluate disease control rate (DCR) at 4 months.

EXPLORATORY OBJECTIVES:

I. To characterize the PK of the ZEN003694 (ZEN-3694) and binimetinib combination. (Part 2 [Dose Expansion]) II. To identify biomarkers of sensitivity and response to the ZEN003694 (ZEN-3694) and binimetinib combination. (Part 2 [Dose Expansion]) III. To determine histone H3 acetylated at lysine 27 (H3K27ac) levels via chromatin immunoprecipitation sequencing (ChIPseq) on tumor biopsy specimen. (Part 2 [Dose Expansion]) IV. To determine the open chromatin regions in response to the ZEN003694 (ZEN-3694) and binimetinib combination using assay for transposase-accessible chromatin sequencing (ATACseq). (Part 2 [Dose Expansion])

OUTLINE: This is a dose-escalation study of ZEN-3694 with fixed dose binimetinib followed by a dose expansion.

Patients receive ZEN-3694 orally (PO) once daily (QD) and binimetinib PO twice daily (BID) on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. During the dose expansion phase, patients will have two mandatory biopsies - one before beginning the study and the second at day 15 of cycle 1. The study biopsy takes small pieces of cancer tissue from patient's body to look for markers (substances made by, on, or in tumor cells) related to how the study treatment works.

After completion of study treatment, patients are followed up every 3 months for up to 2 years.

Details
Condition Advanced Malignant Solid Neoplasm, Metastatic Malignant Solid Neoplasm, Refractory Malignant Solid Neoplasm, Triple-Negative Breast Carcinoma, Unresectable Malignant Solid Neoplasm
Treatment Binimetinib, BET Bromodomain Inhibitor ZEN-3694
Clinical Study IdentifierNCT05111561
SponsorNational Cancer Institute (NCI)
Last Modified on23 July 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Patients must have histologically confirmed advanced/metastatic or unresectable solid tumor that is refractory to standard therapy or has relapsed after standard therapy
Patients must have one of the following
For Part 1 and 2 -
Triple negative breast cancer (TNBC) (estrogen receptor =< 1%, progesterone receptor =< 1%, human epidermal growth factor receptor 2 0-1+ or non-amplified)
Solid tumor with genomic alteration(s) activating RAS signaling including activating KRAS, NRAS, HRAS, or BRAF mutations, inactivating NF1 mutations, or BRAF fusions
Genomic alterations should be identified locally by next generation sequencing (NGS). Patient genomic reports will be reviewed by the MD Anderson Cancer Center (MDACC) Precision Oncology Decision Support team prior to initiation of study treatment
For Part 1, patients can have evaluable or measurable disease. For Part 2, patients
must have measurable disease by the Response Evaluation Criteria in Solid
Tumors (RECIST) v1.1
Patients must be >= 4 weeks beyond treatment with any chemotherapy (6 weeks for nitrosoureas or mitomycin C) or other investigational therapy to include hormonal, biological, or targeted agents; or at least 5 half-lives from hormonal, biological, or targeted agents, whichever is shorter at the time of study treatment initiation. Patients must be >= 4 weeks beyond radiotherapy
Age >= 18 years. Because no dosing or adverse events (AE) data are currently available on the use of binimetinib and ZEN003694 (ZEN-3694) in patients < 18 years of age, children are excluded from this study
Eastern Cooperative Oncology Group (ECOG) performance status =< 2 (Karnofsky >= 60%)
Absolute neutrophil count >= 1,500/mcL
Platelets >= 125,000/mcL
Hemoglobin >= 8 g/dL or >= 5.6 mmol/L
Total bilirubin =< 1.5 x institutional upper limit of normal (ULN) OR < 2.0 x ULN in patients with documented Gilbert's syndrome
Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 x institutional ULN
Creatinine =< 1.5 x institutional ULN OR glomerular filtration rate (GFR) >= 60 mL/min/1.73 m^2 unless data exists supporting safe use at lower kidney function values, no lower than 30 mL/min/1.73 m^2
Prothrombin time =< 1.5 x ULN
Partial thromboplastin time =< 1.5 x ULN
Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this stud
For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
Patients with treated brain metastases are eligible if follow-up brain imaging after central nervous system (CNS)-directed therapy shows no evidence of progression by imaging for at least 4 weeks prior to the first dose of study treatment and any neurologic symptoms have returned to baseline, have no evidence of new or enlarging brain metastases, and are not using steroids for at least 7 days prior to the first dose of study treatment. This exception does not include carcinomatous meningitis, which is excluded regardless of clinical stability
Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this study
Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this study, patients should be class 2B or better
Patients must have corrected QT (QTc) < 450 msec
The effects of ZEN003694 (ZEN-3694) and binimetinib on the developing human fetus are unknown. For this reason and because BETi agents are known to be teratogenic, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and 4 months after the completion of ZEN003694 (ZEN-3694) and binimetinib administration. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 4 months after completion of ZEN003694 (ZEN-3694) and binimetinib administration
Ability to understand and the willingness to sign a written informed consent document. Participants with impaired decision-making capacity (IDMC) who have a legally authorized representative (LAR) and/or family member available will also be eligible

Exclusion Criteria

Patients who have not recovered from AEs due to prior anticancer therapy (i.e., have residual toxicities > Grade 1) with the exception of alopecia
Patients who are receiving any other investigational agents
Breast cancer patients with a prior history of hormone receptor positivity will not be eligible
Patients with PI3K pathway activating genomic alterations including inactivating mutations/deletions in PTEN and PIK3R1, amplifications in PIK3CA, and activating mutations in PIK3CA, Akt, or mTOR will not be eligible
Prior therapy with BET, RAF, MEK, or ERK inhibitor
History of allergic reactions attributed to compounds of similar chemical or biologic composition to ZEN003694 (ZEN-3694) and binimetinib
Patients requiring therapeutic doses of anticoagulation are excluded. Patients taking low-dose (prophylactic) anticoagulation (e.g., low-molecular weight heparin, low-dose warfarin, fondaparinux) are allowed
Patients with uncontrolled intercurrent illness
Patients with psychiatric illness/social situations that would limit compliance with study requirements
Pregnant women are excluded from this study because ZEN003694 (ZEN-3694) and binimetinib are a BETi and MEK inhibitor agent, respectively, with the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for AEs in nursing infants secondary to treatment of the mother with ZEN003694 (ZEN-3694) and binimetinib, breastfeeding should be discontinued if the mother is treated with ZEN003694 (ZEN-3694) and binimetinib
Patient has a history of cerebrovascular accident, myocardial infarction, or unstable angina within the previous 6 months prior to study treatment initiation
Patients with any medical condition or diagnosis that would likely impair absorption of an orally administered drug (e.g., gastrectomy, ileal bypass, chronic diarrhea, gastroparesis) are excluded
Patient has a history of retinal vein occlusion
Patient has a history of pneumonitis or interstitial lung disease
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