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Vorinostat and Radiation Therapy Followed by Maintenance Therapy With Vorinostat in Treating Younger Patients With Newly Diagnosed Diffuse Intrinsic Pontine Glioma

A Phase 1/2 Study of Suberoylanilide Hydroxamic Acid (SAHA, Vorinostat) and Local Irradiation, Followed by Maintenance SAHA in Children With Newly Diagnosed Diffuse Intrinsic Pontine Gliomas (DIPG)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01189266
Enrollment
79
Registered
2010-08-26
Start date
2010-08-09
Completion date
2021-09-30
Last updated
2021-10-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anaplastic Astrocytoma, Anaplastic Oligoastrocytoma, Diffuse Intrinsic Pontine Glioma, Gliosarcoma

Brief summary

This phase I/II trial studies the side effects and best dose of vorinostat and to see how well it works when given together with radiation therapy followed by maintenance therapy with vorinostat in treating younger patients with newly diagnosed diffuse intrinsic pontine glioma (a brainstem tumor). Vorinostat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Radiation therapy uses high-energy x-rays to kill tumor cells. Giving vorinostat together with radiation therapy may kill more tumor cells.

Detailed description

PRIMARY OBJECTIVES: l. To estimate the maximum tolerated dose (MTD) or recommend a phase 2 dose of vorinostat given concurrently with radiation in children with newly diagnosed diffuse intrinsic pontine glioma (DIPG). II. To define and describe the toxicities of vorinostat given concurrently with radiation in children with newly diagnosed DIPG. III. To determine, in the context of this phase I/II trial, the anti-tumor activity of combining vorinostat with radiation, followed by maintenance vorinostat for twelve courses, in children with newly diagnosed DIPG, as measured by 12-month event-free survival (EFS) and overall survival (OS). IV. To determine the toxicities of vorinostat for 12 additional courses after completion of vorinostat and radiation. SECONDARY OBJECTIVES: I. To measure non-homologous end-joining (NHEJ) activity in peripheral blood mononuclear cells (PBMCs) before treatment, at 2 weeks after starting vorinostat and radiation, and at the end of radiation. II. To measure histone deacetylase 2 (HDAC2) levels and assess histone acetylation in PBMCs before treatment, at 2 weeks after starting vorinostat and radiation, and at the end of radiation. III. To quantify deoxyribonucleic acid (DNA) repair proteins from the NHEJ and homologous recombination repair (HHR) pathways in tumors by either Western analysis or immunohistochemistry, if paraffin-embedded tumor is available. OUTLINE: This is a phase I, dose-escalation study of vorinostat followed by a phase II study. Patients receive vorinostat orally (PO) on days 1-5, 8-12, 15-19, 22-26, 29-33, and 36-40. Patients undergo 3-dimensional (3D) conformal or intensity-modulated radiation therapy 5 days per week for 6 weeks. Patients then receive maintenance therapy comprising vorinostat PO on days 1-28. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 3, 6, 9, 12, 18, 24, 36, 48, and 60 months.

Interventions

RADIATION3-Dimensional Conformal Radiation Therapy

Undergo 3D conformal radiation therapy

RADIATIONIntensity-Modulated Radiation Therapy

Undergo intensity-modulated radiation therapy

OTHERLaboratory Biomarker Analysis

Correlative studies

DRUGVorinostat

Given PO

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
37 Months to 21 Years
Healthy volunteers
No

Inclusion criteria

* Patients with newly diagnosed diffuse intrinsic pontine gliomas (DIPGs), defined as tumors with a pontine epicenter and diffuse involvement of at least 2/3 of the pons, are eligible without histologic confirmation; patients with brainstem tumors that do not meet these criteria or not considered to be typical intrinsic pontine gliomas will only be eligible if the tumors are biopsied and proven to be an anaplastic astrocytoma, glioblastoma multiforme, gliosarcoma, or anaplastic mixed glioma; patients with juvenile pilocytic astrocytoma, fibrillary astrocytoma, gangliogliomas, or other mixed gliomas without anaplasia are not eligible; patients with disseminated disease are not eligible, and magnetic resonance imaging (MRI) of spine must be performed if disseminated disease is suspected by the treating physician * Karnofsky \>= 50% for patients \> 16 years of age and Lansky \>= 50 for patients =\< 16 years of age; 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 * Patients must not have received any prior treatment except dexamethasone and/or surgery * Peripheral absolute neutrophil count (ANC) \>= 1000/uL * Platelet count \>= 100,000/uL (transfusion independent, defined as not receiving platelet transfusions within a 7 day period prior to enrollment) * Hemoglobin \>= 8.0 g/dL (may receive red blood cell \[RBC\] transfusions) * Creatinine clearance or radioisotope glomerular filtration rate (GFR) \>= 70ml/min/1.73 m\^2 or a serum creatinine based on age/gender as follows: * 0.8 mg/dL (3 to \< 6 years of age) * 1 mg/dL (6 to \< 10 years of age) * 1.2 mg/dL (10 to \< 13 years of age) * 1.5 mg/dL (male) or 1.4 mg/dL (female) (13 to \< 16 years of age) * 1.7 mg/dL (male) or 1.4 mg/dL (female) (\>= 16 years of age) * Bilirubin (sum of conjugated + unconjugated) =\< 1.5 x upper limit of normal (ULN) for age * Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase \[ALT\]) =\< 110 U/L; for the purpose of this study, the ULN for SGPT (ALT) is 45 U/L * Serum albumin \>= 2 g/dL * Patients with seizure disorder may be enrolled if on non-enzyme inducing anticonvulsants (with the exception of valproic acid) and seizures are well controlled * Patients must be able to swallow capsules or liquids; patients dependent on nasogastric (NG) tube feeding are not permitted to receive protocol therapy * Enrollment must be no later than 28 days after the date of radiographic diagnosis or surgery, whichever is the later date

Exclusion criteria

* Pregnant or breast-feeding women will not be entered on this study; pregnancy tests must be obtained in girls who are post-menarchal; males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method * Growth factors that support platelet or white cell number or function must not have been administered within the 7 days prior to enrollment * Patients who are currently receiving another investigational drug are not eligible * Patients who are currently receiving other anti-cancer agents are not eligible * Patients must not currently be receiving enzyme inducing anticonvulsants * Patients on valproic acid must discontinue valproic acid for at least 2 weeks before starting protocol therapy * Patients receiving coumadin, heparin, low-molecular weight heparin, or any other anti-coagulants are not eligible for study entry * Patients receiving acetylsalicylic acid (ASA) (\> 81 mg/day), non-steroidal anti-inflammatory drugs, clopidogrel (Plavix), dipyridamole (Persantine), or any other drug that inhibits platelet function are not eligible for study entry * Patients who have an uncontrolled infection are not eligible * Patients who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study are not eligible

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Toxicity During Maintenance TherapyPlanned 12 months of maintenance with VorinostatProportion of patients who experience any grade 3 or higher CTC AE Version 4 adverse experience
Maximum Tolerated Dose (MTD) of VorinostatPlanned 7 weeks during chemoradiotherapyThe dose of vorinostat in mg/sqm/day to be administered with combination chemotherapy and radiation therapy
Event-Free Survival2 years after study enrollmentTime from enrollment to disease progression, diagnosis of a second malignant neoplasm, death or last follow-up, whichever occurs first.
Incidence of Toxicity During Chemoradiation TherapyPlanned 7 weeks during chemoradiotherapyProportion of patients who experience any grade 3 or higher CTC AE Version 4 adverse experience

Secondary

MeasureTime frameDescription
Overall Survival2 years after study enrollmentTime from enrollment to death or last follow-up, whichever occurs first.
Change in H3 and H4 Acetylation Levels in PBMCsBaseline to up to 7 weeksDegree of acetylation in peripheral blood monocytes will be divided into quartiles and coded as none, mild, moderation or marked.
Change in NHEJ Activity in PBMCsBaseline to up to 7 weeksDescriptive statistics will be used to summarize the biological/laboratory measures and the changes in these measures across time-points.
Levels of DNA Repair Proteins in Paraffin-embedded Blocks, Measured Via Immunohistochemistry or Western AnalysisBaselineFor immunohistochemistry from tumor blocks, the intensity will be graded from 1 to 3; for Western analysis, a percentage of the intensity relative to the tumor with the highest level will be measured.

Countries

Australia, Canada, United States

Participant flow

Recruitment details

Phase I /II study. Phase I determined Maximum Tolerated Dose between the first 2 treatment arms; zero patients completed therapy. Study was closed, then reopened to accrual. Phase II enrolled an additional 67 patients. Overall, 79 patients were enrolled but only 2 patients completed all 12 cycles of maintenance chemotherapy.

Participants by arm

ArmCount
Arm 1 Phase I Vorinostat 180 mg/m^2
Patients in phase I received vorinostat at 180 mg/m\^2/day PO on Monday through Friday weekly for the duration of radiation therapy (6-7 weeks). Patients underwent 3D conformal or intensity-modulated radiation therapy 5 days per week for 6 weeks. After completing concurrent vorinostat and radiation therapy, patients then received maintenance therapy comprising of vorinostat at 230 mg/m\^2/day PO on days 1-28. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity. 3-Dimensional Conformal Radiation Therapy: Undergo 3D conformal radiation therapy Intensity-Modulated Radiation Therapy: Undergo intensity-modulated radiation therapy Laboratory Biomarker Analysis: Correlative studies Vorinostat: Given PO
6
Arm 2 Phase 1 Vorinostat 230 mg/m^2
Patients received a higher dose of vorinostat at 230 mg/m\^2/day PO on Monday through Friday weekly for the duration of radiation therapy (6-7 weeks). Patients underwent 3D conformal or intensity-modulated radiation therapy 5 days per week for 6 weeks. After completing concurrent vorinostat and radiation therapy, patients then received maintenance therapy comprising of vorinostat at 230 mg/m\^2/day PO on days 1-28. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity. 3-Dimensional Conformal Radiation Therapy: Undergo 3D conformal radiation therapy Intensity-Modulated Radiation Therapy: Undergo intensity-modulated radiation therapy Laboratory Biomarker Analysis: Correlative studies Vorinostat: Given PO
6
Arm 3 Phase II Evaluation Vorinostat 230 mg/m^2
Patients received a higher dose of vorinostat at 230 mg/m\^2/day PO on Monday through Friday weekly for the duration of radiation therapy (6-7 weeks). Patients underwent 3D conformal or intensity-modulated radiation therapy 5 days per week for 6 weeks. After completing concurrent vorinostat and radiation therapy, patients then received maintenance therapy comprising of vorinostat at 230 mg/m\^2/ day PO on days 1-28. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity. 3-Dimensional Conformal Radiation Therapy: Undergo 3D conformal radiation therapy Intensity-Modulated Radiation Therapy: Undergo intensity-modulated radiation therapy Laboratory Biomarker Analysis: Correlative studies Vorinostat: Given PO
67
Total79

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event105
Overall StudyDeath005
Overall StudyLack of Efficacy4544
Overall StudyNo treatment001
Overall StudyPatient refuses further therapy107
Overall StudyPhysician Decision001
Overall StudyProtocol Violation011
Overall StudyWithdrawal by Subject001

Baseline characteristics

CharacteristicArm 1 Phase I Vorinostat 180 mg/m^2Arm 2 Phase 1 Vorinostat 230 mg/m^2Arm 3 Phase II Evaluation Vorinostat 230 mg/m^2Total
Age, Categorical
<=18 years
6 Participants6 Participants66 Participants78 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants1 Participants1 Participants
Age, Continuous6 years9 years6 years6 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants15 Participants16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants5 Participants51 Participants61 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants3 Participants3 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants8 Participants8 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants9 Participants10 Participants
Race (NIH/OMB)
White
6 Participants5 Participants47 Participants58 Participants
Region of Enrollment
Australia
0 participants0 participants3 participants3 participants
Region of Enrollment
Canada
1 participants1 participants1 participants3 participants
Region of Enrollment
Puerto Rico
0 participants0 participants1 participants1 participants
Region of Enrollment
United States
5 participants5 participants62 participants62 participants
Sex: Female, Male
Female
4 Participants4 Participants36 Participants44 Participants
Sex: Female, Male
Male
2 Participants2 Participants31 Participants35 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
4 / 66 / 662 / 65
other
Total, other adverse events
6 / 66 / 651 / 65
serious
Total, serious adverse events
6 / 65 / 655 / 65

Outcome results

Primary

Event-Free Survival

Time from enrollment to disease progression, diagnosis of a second malignant neoplasm, death or last follow-up, whichever occurs first.

Time frame: 2 years after study enrollment

Population: One patient enrolled on Arm 3 was withdrawn from study prior to the start of treatment.

ArmMeasureValue (NUMBER)
All Phase 1 Study ParticipantsEvent-Free Survival0 percent probability
Arm 2, Phase I Vorinostat 230 mg/m^2Event-Free Survival0 percent probability
Arm 3, Phase II Evaluation Vorinostat 230 mg/m^2Event-Free Survival3.1 percent probability
Primary

Incidence of Toxicity During Chemoradiation Therapy

Proportion of patients who experience any grade 3 or higher CTC AE Version 4 adverse experience

Time frame: Planned 7 weeks during chemoradiotherapy

Population: All patients enrolled on Arm 1 and 2 received at least one dose of chemoradiation therapy. Two patients enrolled on arm 3 did not receive protocol therapy prior to date of removal from protocol therapy.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
All Phase 1 Study ParticipantsIncidence of Toxicity During Chemoradiation Therapy5 Participants
Arm 2, Phase I Vorinostat 230 mg/m^2Incidence of Toxicity During Chemoradiation Therapy2 Participants
Arm 3, Phase II Evaluation Vorinostat 230 mg/m^2Incidence of Toxicity During Chemoradiation Therapy24 Participants
Primary

Incidence of Toxicity During Maintenance Therapy

Proportion of patients who experience any grade 3 or higher CTC AE Version 4 adverse experience

Time frame: Planned 12 months of maintenance with Vorinostat

Population: All patients enrolled on arm 1 and 2 received at least one dose of maintenance therapy. Seven patients enrolled on arm 3 did not receive maintenance therapy prior to date of removal from protocol therapy.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
All Phase 1 Study ParticipantsIncidence of Toxicity During Maintenance Therapy6 Participants
Arm 2, Phase I Vorinostat 230 mg/m^2Incidence of Toxicity During Maintenance Therapy4 Participants
Arm 3, Phase II Evaluation Vorinostat 230 mg/m^2Incidence of Toxicity During Maintenance Therapy39 Participants
Primary

Maximum Tolerated Dose (MTD) of Vorinostat

The dose of vorinostat in mg/sqm/day to be administered with combination chemotherapy and radiation therapy

Time frame: Planned 7 weeks during chemoradiotherapy

Population: All patients enrolled on arm 1 and 2 who received at least 85% of the planned doses of radiation therapy and chemotherapy in the chemoradiotherapy portion of the study or who experienced DLT after after receiving at least one dose of chemoradio therapy and completing 7 weeks fo follow-up.

ArmMeasureValue (NUMBER)
All Phase 1 Study ParticipantsMaximum Tolerated Dose (MTD) of Vorinostat230 mg/m^2
Secondary

Change in H3 and H4 Acetylation Levels in PBMCs

Degree of acetylation in peripheral blood monocytes will be divided into quartiles and coded as none, mild, moderation or marked.

Time frame: Baseline to up to 7 weeks

Population: Due to budgetary issues the planned laboratory testing was not performed and no data were collected

Secondary

Change in NHEJ Activity in PBMCs

Descriptive statistics will be used to summarize the biological/laboratory measures and the changes in these measures across time-points.

Time frame: Baseline to up to 7 weeks

Population: Due to budgetary issues the planned laboratory testing was not performed and no data were collected

Secondary

Levels of DNA Repair Proteins in Paraffin-embedded Blocks, Measured Via Immunohistochemistry or Western Analysis

For immunohistochemistry from tumor blocks, the intensity will be graded from 1 to 3; for Western analysis, a percentage of the intensity relative to the tumor with the highest level will be measured.

Time frame: Baseline

Population: Due to budgetary issues the planned laboratory testing was not performed and no data were collected

Secondary

Overall Survival

Time from enrollment to death or last follow-up, whichever occurs first.

Time frame: 2 years after study enrollment

Population: One patient enrolled on Arm 3 was withdrawn from study prior to the start of treatment.

ArmMeasureValue (NUMBER)
All Phase 1 Study ParticipantsOverall Survival22 percent probability
Arm 2, Phase I Vorinostat 230 mg/m^2Overall Survival0 percent probability
Arm 3, Phase II Evaluation Vorinostat 230 mg/m^2Overall Survival3.1 percent probability

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026