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A Phase 2, Open-Label, Multicenter Study to Evaluate the Safety and Efficacy of the Oral Pan-RAF Inhibitor DAY101 in Pediatric Patients with RAF-Altered, Recurrent or Progressive Low-Grade Glioma and Advanced Solid Tumors

Phase 2
Recruiting
Conditions
brain tumor.
Pediatric Low-grade Glioma
10029211
Registration Number
NL-OMON52145
Lead Sponsor
Day One Biopharmaceuticals, Inc.
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Recruiting
Sex
Not specified
Target Recruitment
10
Inclusion Criteria

1. Patients must be age 6 months to 25 years, inclusive, with:
a) Arm 1 (Low-Grade Glioma): A relapsed or progressive low-grade glioma with a
documented known activating BRAF alteration, as identified through molecular
assays as routinely performed at CLIA or other similarly certified laboratories
b) Arm 2 (Low-Grade Glioma Extension): A relapsed or progressive low-grade
glioma with a documented known or expected to be activating BRAF mutation or
RAF fusion, as identified through molecular assays as routinely performed at
CLIA-certified or other similarly certified laboratories
c) Arm 3 (Advanced Solid Tumor): Locally advanced or metastatic solid tumor with
a documented known or expected to be activating RAF fusion, as identified
through molecular assays as routinely performed at CLIA-certified or other
similarly certified laboratories, that has relapsed or progressed or was
nonresponsive to available therapies and for which no standard or available
systemic curative therapy exists
2. Patients must have histopathologic verification of malignancy at either
original diagnosis
or relapse.
3. Patients must have received at least one line of prior systemic therapy and
have
documented evidence of radiographic progression.
4. Patients must have evaluable and/or measurable disease (imaging must be
performed
within 28 days of the initiation of treatment) as specified below:
a) Arm 1 (Low-Grade Glioma): Must have at least one measurable lesion as defined
by RANO criteria (T1-weighted lesion that can be reproducibly measured in at
least 2 dimensions of at least 10 mm, visible on 2 or more axial slices that
are preferably, at most, 5 mm apart with 0-mm skip)
b) Arm 2 (Low-Grade Glioma Extension): Must have evaluable (either
unidimensionally measurable lesions, masses with margins not clearly defined,
or lesions with maximal perpendicular diameters less than 10 mm) and/or
measurable disease as defined by RANO criteria
c) Arm 3 (Advanced Solid Tumor): Must have at least one measurable lesion as
defined by RECIST v1.1 (>= 10 mm by CT/MRI scan [slice thickness <= 5 mm],
>= 20 mm by chest X-ray, or >= 10 mm with calipers by clinical exam, or
pathologic lymph nodes with a short axis of >= 15 mm by CT scan/MRI)
5. Radiation therapy to the measurable lesion(s) must be completed at least six
months prior
to administration of DAY101. Patients who have documented radiographic
progression less than six months from radiotherapy in one or more measurable
lesions are eligible.
6. Patients must have Karnofsky (those 16 years and older) or Lansky (those
younger than
16 years) performance score of at least 50. Patients who are unable to walk
because of paralysis, but who are able to sit in a wheelchair, will be
considered ambulatory for the purpose of assessing the performance score.
7. Patients must have fully recovered from the acute toxic effects of all prior
anticancer
chemotherapy and have undergone the following washout periods, as applicable:
a) Myelosuppressive chemotherapy: At least 21 days must have elapsed after the
last
dose of myelosuppressive chemotherapy (42 days if prior nitrosourea).
b) Radiation therapy (XRT): At least 14 days must have elapsed after the last
dose
fraction of XRT.
c) Stem cell transplant or adoptive cell therapy: At least 100 days must have
el

Exclusion Criteria

Patient*s tumor has an additional previously known or expected to be activating
molecular alteration(s) (e.g., histone mutation, IDH1/2 mutations, FGFR
mutations or fusions, MYBL alterations, NF-1 somatic or germline mutations).
2. Patient has symptoms of clinical progression without radiographically
recurrent or
radiographically progressive disease.
Patient has known or suspected diagnosis of neurofibromatosis type 1 (NF-1)
via genetic
testing or current diagnostic criteria.
4. Patient has history of any major disease, other than the primary malignancy
under study,
that might interfere with safe protocol participation.
5. Patient has a history or current evidence of central serous retinopathy
(CSR), retinal vein
occlusion (RVO), or ophthalmopathy present at baseline that would be considered
a risk factor for CSR or RVO. Ophthalmological findings secondary to
long-standing optic pathway glioma (such as visual loss, optic nerve pallor, or
strabismus) will NOT be considered significant abnormalities for the purposes
of this study.
6. Patient has major surgery within 14 days (two weeks) prior to C1D1 (does not
include
central venous access, cyst fenestration or cyst drainage, or
ventriculoperitoneal shunt placement or revision).
7. Patient has clinically significant active cardiovascular disease, or history
of myocardial
infarction, or deep vein thrombosis/pulmonary embolism within six months prior
to C1D1, ongoing cardiomyopathy, or current prolonged QT interval corrected for
heart rate by Fridericia*s formula (QTcF) interval > 470 milliseconds based on
triplicate electrocardiogram (ECG) average.
8. Patient is currently enrolled in any other investigational treatment study.
Participation in
a concurrent observational or bio-sampling study is allowed.
9. Patient has active systemic bacterial, viral, or fungal infection.
10. Patient has nausea and vomiting >= National Cancer Institute (NCI) Common
Terminology Criteria for Adverse Events (CTCAE) v5.0 Grade 2, malabsorption
requiring supplementation, or significant bowel or stomach resection that would
preclude adequate absorption of DAY101.
11. Patient is neurologically unstable despite adequate treatment (e.g.,
uncontrolled seizures). 12. Patient is currently being treated with a strong
CYP2C8 inhibitor or inducer other than
those allowed per Section 5.3.2. Medications that are substrates of CYP2C8 are
allowed
but should be used with caution.
13. Patient is pregnant or lactating.
14. Patient has a history of any drug reaction with eosinophilia and systemic
symptoms
(DRESS) syndrome or Stevens Johnsons syndrome (SJS), or hypersensitivity to the
investigational medicinal product or to any drug with similar chemical
structure or to any other excipient present in the pharmaceutical form of the
investigational medicinal product.
15. There are other unspecified reasons that, in the opinion of the
investigator, make the
patient unsuitable for enrollment.

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
<p>ORR, defined as the proportion of patients with best overall confirmed response<br /><br>of complete response (CR) or partial response (PR) as determined by the<br /><br>Response Assessment in Neuro-Oncology (RANO) criteria</p><br>
Secondary Outcome Measures
NameTimeMethod
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