E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Neurofibromatosis type 1 (NF1) |
|
E.1.1.1 | Medical condition in easily understood language |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10029267 |
E.1.2 | Term | Neurofibroma |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
|
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Determine the maximum tolerated dose and extended tolerability. (Phase I)
Evaluate the confirmed partial and complete response rate using volumetric MRI analysis in children and young adults with NF1 and inoperable PN with PN related morbidity at the time of enrollment (Phase II)
|
|
E.2.2 | Secondary objectives of the trial |
Phase I
•Determine effect of growth rate on PN
•Study PK
•Measure adherence of chronic dosing
•Define toxicities
Phase II
•Evaluate response rate of all patients, and those with “typical PN” versus “nodular PN” versus “solitary nodular PN”
•Determine long-term tolerability and safety
•Determine duration of response
•Evaluate effect on bone mineral density
•Characterize effect on pain, quality of life, and physical functioning.
•Determine baseline functional impairments secondary to PN, and effect on function
•Determine effect on PN growth rate based on volumetric analysis of MRI studies
•Determine TPP free survival in progressive PN, and compare PFS to placebo arm of the R115777 randomized trial
•Determine day1 and steady state PK
•Evaluate bone marrow derived precursor cells and cytokines pre- and post- treatment
•Evaluate effect on changes in the size of optic pathway tumors or other gliomas
•Evaluate effect on ERK phosphorylation in PBMC |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Age Phase I: greater than 3 years and less than or equal to 18 years at the time of study enrollment.
Age Phase II: greater than 2 years of age and less than or equal to 18 years of age. BSA greater than or equal to 0.55 m2.
2.Diagnosis: Patients with NF1 and inoperable PN, defined as PN that cannot be surgically completely removed without risk for substantial morbidity due to encasement of, or close proximity to, vital structures, invasiveness, or high vascularity of the PN. In addition to PN, all study subjects must have either positive genetic testing for NF1 or have at least one other diagnostic criterion for NF1 listed below:
- Six or more cafe-au-lait macules (greater than or equal to 0.5cm in prepubertal subjects or greater than or equal to 1.5 cm in post pubertal subjects)
- Freckling in axilla or groin
- Optic glioma
- Two or more Lisch nodules
- A distinctive bony lesion (dysplasia of the sphenoid bone or dysplasia or thinning of long bone cortex)
- A first-degree relative with NF1
3.Measurable disease: Patients must have at least one measurable PN, defined as a lesion of at least 3 cm measured in one dimension. Patients who underwent surgery for resection of a PN are eligible provided the PN was incompletely resected and is measurable as per criteria above.
4.Prior Therapy: Patients with NF1 will only be eligible if complete tumor resection is not considered to be feasible without substantial risk or morbidity, or if a patient with a surgical option refuses surgery.
5.Performance status: Patients greater than or equal to 16 years of age must have a Karnofsky performance level of greater than or equal to70%, and children < 16 years old must have a Lansky performance of greater than or equal to 70%.
6.Normal Hematologic, Hepatic, Renal and Cardiac Function
7.Informed Consent: written informed consent from all patients or their legal guardians (if the patient is < 18 years old).
8. Durable Power of Attorney (DPA): All patients greater than or equal to 18 years of age will be offered the opportunity to assign DPA so that another person can make decisions about their medical care if they become incapacitated or cognitively impaired.
|
|
E.4 | Principal exclusion criteria |
1. Pregnant or breast-feeding females are excluded due to potential risks of fetal and teratogenic adverse events of an investigational agent. Pregnancy tests must be obtained prior to enrollment on this study in girls, age 9 or older. Males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method. Abstinence is an acceptable method of birth control.
2.Phase I: Patients who anticipate the need for surgical intervention within the first three cycles (3 months), as surgical intervention during the period of DLT evaluation may affect analysis of adherence and/or make the subject inevaluable.
3.An investigational agent within the past 30 days.
4.Ongoing radiation therapy, chemotherapy, hormonal therapy directed at the tumor, immunotherapy, or biologic therapy.
5.Any evidence of severe or uncontrolled systemic disease, active infection, active bleeding diatheses, or renal transplant, including any patient known to have hepatitis C, or human immunodeficiency virus (HIV) will be excluded. Patients with HIV who have adequate CD4 count, not requiring antiretroviral medication, may be enrolled.
6.Patients who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study.
7.Inability to swallow capsules, since capsules cannot be crushed or broken.
8.Inability to undergo MRI and/or contraindication for MRI examinations following the MRI protocol. Prosthesis or orthopedic or dental braces that would interfere with volumetric analysis of target PN on MRI.
9.Refractory nausea and vomiting, chronic grastointestinal disease (e.g., inflammatory bowel disease), or significant bowel resection that would preclude adequate absorption.
10.Prior treatment with selumetinib or another specific MEK1/2 inhibitor (unless the subject meets criteria for re-treatment.
11. Evidence of an optic glioma, malignant glioma, malignant peripheral nerve sheath tumor, or other cancer requiring treatment with chemotherapy or radiation therapy.
12. Supplementation with vitamin E greater than 100% of the daily recommended dose.
13. Patients not acheiveing adequate blood pressure in spite of antihypertensive therapy for control of blood pressure.
14. Cardiac Function: a) known inherited coronary disease, b) Symptomatic heart failure (NYHA Class II-IV prior or current cardiomyopathy, or severe valvular heart disease), c) Prior or current cardiomyopathy, d) Sever valvular heart disease, 3) History of atrial fibrillation
15. Ophthalmologic conditions: 1.Current or past history of central serous retinopathy; 2.Current or past history of retinal vein occlusion; 3.Known intraocular pression (IOP) greater than 21 mmHg (or ULN adjusted by age) or uncontrolled glaucoma (irrespective of IOP); patients with controlled glaucoma and increased IOP who do not have meaningful vision (light perception only or no light perception) may be eligible after discussion with the study chair. 4.Subjects with any other significant abnormality on ophthalmic examination (performed by an ophthalmologist) should be discussed with the Study Chair for potential eligibility. 5.Ophthalmological findings secondary to long-standing optic pathway glioma (such as visual loss, optic nerve pallor or strabismus) or long-standing orbito-temporal PN (such as visual loss, strabismus) will NOT be considered a significant abnormality for the purposes of the study
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Phase I: Maximum tolerated dose and extended tolerability assessed from adverse event reports
Phase I: Plasma pharmacokinetic parameters
Phase II: Confirmed response rate using volumetric analysis
|
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
Maximum tolerated dose and extended tolerability evaluated over 3 cycles (1 cycle = 28 days)
Pharmacokinetics in cycles 1-3
Volumetric analysis conducted at regular intervals
|
|
E.5.2 | Secondary end point(s) |
Phase I: Growth rate of PN using volumetric analysis
Phase I and II: Long-term tolerability and safety
Phase II: Duration of response
Phase II: Effects on pain, quality of life and physical functioning
Phase II: Pharmacodynamic effects
|
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
Volumetric analysis conducted at regular intervals
Long-term tolerability and safety for up to 7 years
Functional and quality of life assessments conducted at regular intervals
Blood samples for pharmacodynamic biomarkers in cycles 1-3 |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
|
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | Yes |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | Yes |
E.7.1.3.1 | Other trial type description |
|
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | Yes |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
|
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.2 | In all countries concerned by the trial years | 12 |
E.8.9.2 | In all countries concerned by the trial months | 7 |