Study of Axitinib in Patients With Neurofibromatosis Type 2 and Progressive Vestibular Schwannomas

Phase II Study of Axitinib in Patients With Neurofibromatosis Type 2 and Progressive Vestibular Schwannomas

The purpose of this study is to determine if the study drug, AXITINIB, has any effect on tumors found in patients with Neurofibromatosis Type 2 (NF2).

Study Overview

• Status: Completed
• Conditions: Neurofibromatosis Type 2; Vestibular Schwannomas
• Intervention / Treatment: Drug: Axitinib

Detailed Description

NF2 is a condition that mainly affects the skin and nervous system. It causes non-cancerous tumors to grow on the nerves around a person's body. Some signs of NF2 include a gradual loss of hearing and tumors growing on the skin, the brain and the spinal cord, which can lead to complications.

AXITINIB is an oral drug (taken by mouth) that is approved by the United States Food and Drug Administration (FDA) for the treatment of other types of tumors. However, in this research study, AXITINIB is considered investigational because it is not approved by the FDA for treatment of NF2. Much is known regarding how well it is tolerated (handled), but investigators do not know if it is effective in treating NF2.

This research study will test whether AXITINIB may shrink tumors commonly found in patients with NF2 or stop them from growing. This will help to decide if AXITINIB should be used to treat NF2 patients in the future. AXITINIB is a drug that has been used to treat various forms of cancer. It has not been studied for the treatment of tumors in NF2 patients. Investigators have selected AXITINIB for this clinical trial in patients with NF2 and NF2-related tumors because a very similar drug, bevacizumab, can shrink Vestibular Schwannomas (VS) in some NF2 patients.

Pfizer, Inc., the manufacturer of the study drug, AXITINIB, will provide the AXITINIB being used in this study.

Primary Objective: To estimate the objective volumetric response rates to axitinib in adult NF2 patients with VS.

Secondary Objectives: To assess the toxicity of axitinib given daily in patients with NF2 and to examine the association of objective measures of response on MRI, i.e. volumetric tumor analysis with clinical measures of response, i.e. (audiogram), as well as quality of life assessments (NFTI-QOL). In addition, response in non-VS tumors, such as other schwannomas and meningiomas, may be explored.

• Study Type: Interventional
• Enrollment (Actual): 13
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • New York
    • New York, New York, United States, 10016
      • NYU Langone Medical Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion criteria

• Age ≥18 years
• Meets clinical diagnostic criteria for NF2
• At least one volumetrically measurable and ≥1 cc NF2-related VS (histological confirmation not required)
• MRI evidence of progression (either as >2 mm increase in maximum linear diameter on conventional MRI, or a >20%volume increase by 3D volumetrics) over the past ≤18 months, OR progressive hearing loss, defined as a decline in word recognition score below the 95% critical difference interval from baseline score related to VS (i.e., not due to prior interventions such as surgery or radiation)
• Karnofsky performance status (PS) 60-100%. Note: Patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score.
• Adequate bone marrow function as shown by: absolute neutrophil count ≥1.5 x 10^9/L, Platelets ≥100 x 10^9/L, Hb >9 g/dL
• Adequate liver function as shown by:
• serum bilirubin ≤1.5 x upper limit of normal (ULN)
• ALT and AST ≤2.5x ULN
• INR ≤1.5. (anticoagulation with low molecular weight heparin is allowed if on a stable dose for >2 weeks at time of enrollment.)
• Adequate renal function: serum creatinine ≤1.5 x ULN
• Fully recovered from acute toxic effects of any prior chemotherapy, biological modifiers or radiotherapy
• Any neurologic deficits must be stable for ≥1 week
• Able to provide signed informed consent Exclusion criteria
• Patients currently receiving medical anticancer therapies or who have received medical anticancer therapies within 4 weeks of the start of study drug (including chemotherapy, antibody based therapy, etc.)
• Radiation therapy to a study target tumor within 1 year prior to enrollment, or any radiation therapy within 4 weeks prior to enrollment.
• Patients who have had a major surgery or significant traumatic injury within 4 weeks of start of study drug, patients who have not recovered from the side effects of any major surgery (defined as requiring general anesthesia) or patients that may require major surgery during the course of the study
• Prior treatment with bevacizumab or other agents targeting vascular endothelial growth factor (VEGF) or VEGF receptor
• Prior treatment with any investigational drug within the preceding 4 weeks
• Unstable or rapidly progressive disease, including patients who require glucocorticoids for symptomatic control of brain or spinal tumors
• Treatment with strong CYP3A4 enzyme inhibitors or inducers, including but not limited to ketoconazole, itraconazole, ritonavir, phenytoin, carbamazepine, rifampin, rifabutin, phenobarbital and St. John's wort
• Requirement of therapeutic anticoagulant therapy with oral vitamin K antagonists; low-dose anticoagulants for maintenance of patency of central venous access devise or prevention of deep venous thrombosis is allowed; therapeutic use of low molecular weight heparin (or similar parenteral drug) for venous-thromboembolic disease is allowed.
• Other malignancies within the past 3 years except for adequately treated carcinoma of the cervix or basal or squamous cell carcinomas of the skin.
• Patients who have any severe and/or uncontrolled medical conditions or other conditions that could affect their participation in the study such as:
• Symptomatic congestive heart failure of New York heart Association Class III or IV
• unstable angina pectoris, symptomatic congestive heart failure, myocardial infarction within 6 months of start of study drug, serious uncontrolled cardiac arrhythmia or any other clinically significant cardiac disease
• severely impaired lung function as defined as spirometry and diffusion capacity of lung for carbon monoxide (DLCO) that is 50% of the normal predicted value and/or O2 saturation that is 90% or less at rest on room air
• active (acute or chronic) or uncontrolled severe infections
• liver disease such as cirrhosis or severe hepatic impairment (Child-Pugh class C).
• Impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of axitinib (e.g., ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome or small bowel resection)
• Patients with an active bleeding diathesis
• Female patients who are pregnant or breast feeding, or adults of reproductive potential who are not using effective birth control methods. Adequate contraception must be used throughout the trial and for 8 weeks after the last dose of study drug, by both sexes. (Females of childbearing potential must have a negative serum pregnancy test within 7 days prior to administration of axitinib)
• Male patient whose sexual partner(s) are women of child bearing potential, who are not willing to use adequate contraception, during the study and for 8 weeks after the end of treatment
• History of noncompliance to medical regimens
• Patients unwilling to or unable to comply with the protocol

Study Plan

How is the study designed?

Design Details

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

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Axitinib; 5 mg axitinib orally twice daily, with increase to 7 mg orally twice daily and 10 mg orally twice daily after 2 and 4 weeks, respectively, provided no adverse reactions (i.e., not exceeding grade 2 toxicities) and normotensive and not receiving antihypertension medications. Axitinib will be given continuously in 28-day cycles until disease progression or unacceptable toxicity.

Drug: Axitinib; Other Names: Inlyta

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Expression Levels of p-S6 Based Immunohistochemistry (Histoscore)	The histoscore is given as the sum of the percentage of staining multiplied by an ordinal value corresponding to the intensity level (0 = none, 1 = weak, 2 = moderate, 3 = strong). With 4 intensity levels, the resulting score ranged from 0 (no staining in the tumor) to 300 (diffuse intense staining of the tumor).	10 days
Expression Levels of p-ERK Based Immunohistochemistry (Histoscore)	The histoscore is given as the sum of the percentage of staining multiplied by an ordinal value corresponding to the intensity level (0 = none, 1 = weak, 2 = moderate, 3 = strong). With 4 intensity levels, the resulting score ranged from 0 (no staining in the tumor) to 300 (diffuse intense staining of the tumor).	10 days
Expression Levels of p-AKT Based Immunohistochemistry (Histoscore)	The histoscore is given as the sum of the percentage of staining multiplied by an ordinal value corresponding to the intensity level (0 = none, 1 = weak, 2 = moderate, 3 = strong). With 4 intensity levels, the resulting score ranged from 0 (no staining in the tumor) to 300 (diffuse intense staining of the tumor).	10 days
Pre-Operative Everolimus Blood Levels		Baseline
Post-Operative Everolimus Blood Levels		10 days

Collaborators and Investigators

• Sponsor: NYU Langone Health
• Investigators: Principal Investigator: Theodore Nicolaides, MD, NYU Langone Medical Center

Study record dates

Study Major Dates

• Study Start: April 1, 2014
• Primary Completion (Actual): February 5, 2019
• Study Completion (Actual): February 5, 2019

Study Registration Dates

• First Submitted: April 29, 2014
• First Submitted That Met QC Criteria: May 1, 2014
• First Posted (Estimate): May 2, 2014

Study Record Updates

• Last Update Posted (Actual): December 1, 2021
• Last Update Submitted That Met QC Criteria: November 24, 2021
• Last Verified: November 1, 2021

More Information

Terms related to this study

• Keywords: Axitinib; Neurofibromatosis Type 2; Vestibular Schwannomas
• Additional Relevant MeSH Terms: Nervous System Diseases; Neoplasms by Histologic Type; Neoplasms; Neoplasms by Site; Genetic Diseases, Inborn; Neuromuscular Diseases; Otorhinolaryngologic Neoplasms; Otorhinolaryngologic Diseases; Neurodegenerative Diseases; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms, Nerve Tissue; Peripheral Nervous System Diseases; Ear Diseases; Nervous System Neoplasms; Heredodegenerative Disorders, Nervous System; Neoplastic Syndromes, Hereditary; Cranial Nerve Diseases; Neuroendocrine Tumors; Nerve Sheath Neoplasms; Neurocutaneous Syndromes; Peripheral Nervous System Neoplasms; Cranial Nerve Neoplasms; Neuroma; Vestibulocochlear Nerve Diseases; Retrocochlear Diseases; Neurofibromatoses; Neurofibromatosis 1; Neurofibroma; Neurofibromatosis 2; Neurilemmoma; Neuroma, Acoustic; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Antineoplastic Agents; Protein Kinase Inhibitors; Axitinib
• Other Study ID Numbers: 14-00004

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No