Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

ABT-888 and Temozolomide in Treating Young Patients With Recurrent or Refractory CNS Tumors

This study has been completed.
Information provided by (Responsible Party):
National Cancer Institute (NCI) Identifier:
First received: July 24, 2009
Last updated: July 7, 2014
Last verified: June 2014
This phase I trial is studying the side effects and best dose of ABT-888 when given in combination with temozolomide in treating young patients with recurrent or refractory CNS tumors. ABT-888 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving ABT-888 together with temozolomide may kill more tumor cells.

Condition Intervention Phase
Childhood Atypical Teratoid/Rhabdoid Tumor
Childhood Central Nervous System Germ Cell Tumor
Childhood Choroid Plexus Tumor
Childhood Craniopharyngioma
Childhood Ependymoblastoma
Childhood Grade I Meningioma
Childhood Grade II Meningioma
Childhood Grade III Meningioma
Childhood High-grade Cerebellar Astrocytoma
Childhood High-grade Cerebral Astrocytoma
Childhood Infratentorial Ependymoma
Childhood Low-grade Cerebellar Astrocytoma
Childhood Low-grade Cerebral Astrocytoma
Childhood Medulloepithelioma
Childhood Mixed Glioma
Childhood Oligodendroglioma
Childhood Supratentorial Ependymoma
Recurrent Childhood Brain Stem Glioma
Recurrent Childhood Brain Tumor
Recurrent Childhood Cerebellar Astrocytoma
Recurrent Childhood Cerebral Astrocytoma
Recurrent Childhood Ependymoma
Recurrent Childhood Medulloblastoma
Recurrent Childhood Pineoblastoma
Recurrent Childhood Spinal Cord Neoplasm
Recurrent Childhood Subependymal Giant Cell Astrocytoma
Recurrent Childhood Supratentorial Primitive Neuroectodermal Tumor
Recurrent Childhood Visual Pathway and Hypothalamic Glioma
Drug: veliparib
Drug: temozolomide
Other: pharmacological study
Other: laboratory biomarker analysis
Phase 1

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I Study of ABT-888, an Oral Inhibitor of Poly (ADP-Ribose) Polymerase and Temozolomide in Children With Recurrent/Refractory CNS Tumors

Resource links provided by NLM:

Further study details as provided by National Cancer Institute (NCI):

Primary Outcome Measures:
  • MTD or recommended phase II dose of veliparib [ Time Frame: 28 days ]
  • Acute toxicities [ Time Frame: Initial 4 weeks (course 1) ]
    These toxicities will be tabulated according to dose level.

  • Chronic toxicities [ Time Frame: Up to 30 days post-treatment ]
    Tabulated according to dose level and course of therapy.

  • Plasma drug concentrations and pharmacokinetic parameters, including volume of the central compartment (Vc/F), elimination rate constant (Ke), half-life (t1/2), apparent oral clearance (CL/F), and area under the plasma concentration time curve (AUC) [ Time Frame: Baseline and during course 1 ]
    Presented in tabular and graphical form, and estimated using compartmental methods. Dose proportionality in pharmacokinetic parameters will be investigated by performing one-way analysis of variance (ANOVA) on dose-normalized parameters.

Enrollment: 31
Study Start Date: July 2009
Study Completion Date: June 2014
Primary Completion Date: October 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Treatment (veliparib, temozolomide)

Patients receive oral ABT-888 twice daily and oral temozolomide once daily on days 1-5. Treatment repeats every 28 days for 13-26 courses in the absence of disease progression or unacceptable toxicity.

Blood samples are collected for pharmacokinetics and further laboratory analysis.

Drug: veliparib
Given PO
Other Name: ABT-888
Drug: temozolomide
Given PO
Other Names:
  • SCH 52365
  • Temodal
  • Temodar
  • TMZ
Other: pharmacological study
Correlative studies
Other Name: pharmacological studies
Other: laboratory biomarker analysis
Correlative studies

Detailed Description:


I. To estimate the maximum tolerated dose (MTD) of ABT-888 in combination with temozolomide in children with recurrent or refractory CNS tumors.

II. To study the plasma pharmacokinetics (PK) of ABT-888 and PARP inhibition in peripheral blood mononuclear cells (PBMC) in order to recommend a Phase 2 dose of ABT-888 in combination with temozolomide in children with recurrent or refractory CNS tumors.

III. To describe the toxicities of the combination of ABT-888 and temozolomide in children with recurrent or refractory CNS tumors.


I. To measure non-homologous end-joining (NHEJ) activity in peripheral blood mononuclear cells (PBMC) prior to and following ABT-888 administration.

II. To assess PARP expression and/or activity in tumor tissue obtained at either initial diagnosis or relapse.

III. To determine expression and/or activity of DNA repair pathways, including MGMT and mismatch repair, in tumor tissues, when available.

IV. To document, within the confines of this phase 1 trial, radiographic tumor response to ABT-888 and temozolomide.

OUTLINE: This is a dose-escalation study of ABT-888.

Patients receive oral ABT-888 twice daily and oral temozolomide once daily on days 1-5. Treatment repeats every 28 days for 13-26 courses in the absence of disease progression or unacceptable toxicity.

Blood samples are collected for pharmacokinetics and further laboratory analysis.


Ages Eligible for Study:   up to 21 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients with a diagnosis of a primary CNS malignancy (including low-grade glioma) that is recurrent or refractory to standard therapy and for which there is no known curative therapy; all patients must have had histological verification of malignancy at initial diagnosis or relapse, excluding patients with diffuse intrinsic brain stem tumors, optic pathway tumors or CNS germ cell tumors with elevations of reliable serum or CSF tumor markers (alpha-fetoprotein or beta-HCG); patients with intrinsic pontine gliomas or optic pathway tumors do not require histological confirmation of disease but should have clinical and/or radiographic evidence of progression
  • Patients must have Karnofsky Performance Score (for patients > 16 years of age) or Lansky Performance Score (for patients =< 16 years of age) >= 50% assessed within two weeks of study enrollment
  • Patients must be able to take oral medications (either capsules or liquid); patients with neurologic deficits must have been stable for a minimum of 1 week prior to study entry; 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 have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study; recovery is defined as all AE‟s, attributable to prior therapy, having improved to grade 2 or better or as outlined below
  • Myelosuppressive chemotherapy:

    • Patients must have received their last dose of known myelosuppressive anticancer chemotherapy at least three (3) weeks prior to study registration
    • Patients must have received their last dose of nitrosourea (including Gliadel) at least six (6) weeks prior to study registration
  • Biologic agent (anti-neoplastic): Patient must have received their last dose of other biologic agent ≥ 7 days prior to study registration

    • For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur; the duration of this interval must be discussed with the study chair
  • Monoclonal antibody treatment: Patient must have received their last dose of monoclonal antibody ≥ 4 weeks prior to registration
  • Radiation - Patients who have had prior radiation must have had their last fraction of:

    • Craniospinal irradiation or total body irradiation > 3 months prior to registration
    • Local irradiation to the primary tumors or other sites (cumulative dose ≥ 40Gy) > 3 months prior to registration
    • Palliative irradiation delivered to symptomatic metastatic sites > 4 weeks prior to registration
  • Stem Cell Transplant: Patient must be:

    • ≥ 6 months since allogeneic stem cell transplant prior to registration
    • ≥ 3 months since autologous stem cell transplant prior to registration
  • Corticosteroids: Patients who are receiving dexamethasone must be on a stable or decreasing dose for at least 1 week prior to registration
  • Growth factors:

    • Off all colony forming growth factor(s) that support platelet or white blood cell count, number or function for at least 1 week prior to registration (filgrastim, sargramostim, erythropoietin)
    • Off Pegylated G-CSF and/or Erythropoiesis Stimulating Protein for at least 14 days prior to registration
  • Temozolomide: Patients who have received temozolomide previously are eligible for this study if they meet all other inclusion and exclusion criteria
  • Organ Function: Documented within 14 days of registration and within 7 days of starting treatment
  • Hgb > 8 gm/dL (transfusion independent)
  • Platelet count > 100,000/mm^3 (transfusion independent)
  • Absolute neutrophil count (ANC) > 1, 500/mm^3
  • Total Bilirubin (sum of conjugated + unconjugated) ≤ 1.5 times institutional upper limit of normal (ULN) for age
  • SGPT (ALT) ≤ 2.5 times institutional ULN for age
  • Serum albumin ≥ 2 g/dL
  • Creatinine clearance or radioisotope GFR ≥ 70 ml/min/1.73m^2 or a serum creatinine based on age as follows:

    • ≤ 5 years - 0.8 mg/dL maximum serum creatinine
    • > 5 to ≤ 10 years - 1 mg/dL maximum serum creatinine
    • > 10 to ≤ 15 years - 1.2 mg/dL maximum serum creatinine
    • > 15 years - 1.5 maximum serum creatinine
  • Patients must not be pregnant or breast-feeding; females of reproductive potential must have a negative serum or urine pregnancy test (within 72 hours prior to enrollment); males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method, which includes abstinence
  • Signed informed consent which includes consent to participate in the REQUIRED pharmacokinetic and pharmacodynamic studies prior to registration

Exclusion Criteria:

  • Patients receiving any of the following medications are not eligible for study entry:

    • Anti-cancer therapy
    • Investigational agents
  • Patients with any clinically significant, unrelated systemic illness (serious infections or significant cardiac, pulmonary, hepatic or other organ dysfunction), that would compromise the patient's ability to tolerate protocol therapy or would likely interfere with the study procedures or results
  • Patients with uncontrolled seizures are not eligible for study entry
  • Patients with inadequately controlled systemic hypertension (SBP and/or DBP > 95th percentile for age and height
  • Patients with a prior history of hypertensive crisis and/or hypertensive encephalopathy
  • If a BP measurement prior to registration is > 95th percentile for age and height, it must be rechecked and documented to be < 95th percentile for age and height prior to registration; if a patient falls between the height or weight percentiles, site should average the value as appropriate; for patients ≥ 18 years the normal blood pressure should be < 140/90 mm of Hg; patients with hypertension are eligible if their blood pressures become < 95th percentile for age and height after anti-hypertensive medications
  • Patients with documented CNS ischemia and/or infarction, whether symptomatic or discovered incidentally without clinical symptoms, will be excluded from study participation
  • Patients with an inability to return for follow-up visits or obtain follow-up studies required to assess toxicity to therapy
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00946335

United States, Tennessee
Pediatric Brain Tumor Consortium
Memphis, Tennessee, United States, 38105
Sponsors and Collaborators
National Cancer Institute (NCI)
Principal Investigator: Jack Su Pediatric Brain Tumor Consortium
  More Information

Responsible Party: National Cancer Institute (NCI) Identifier: NCT00946335     History of Changes
Other Study ID Numbers: NCI-2012-03177
NCI-2012-03177 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
PBTC-027 ( Other Identifier: Pediatric Brain Tumor Consortium )
PBTC-027 ( Other Identifier: CTEP )
U01CA081457 ( US NIH Grant/Contract Award Number )
Study First Received: July 24, 2009
Last Updated: July 7, 2014

Additional relevant MeSH terms:
Neoplasms, Germ Cell and Embryonal
Neuroectodermal Tumors
Neuroectodermal Tumors, Primitive
Rhabdoid Tumor
Spinal Cord Neoplasms
Choroid Plexus Neoplasms
Optic Nerve Glioma
Neoplasms, Neuroepithelial
Neoplasms by Histologic Type
Neoplasms, Glandular and Epithelial
Neoplasms, Nerve Tissue
Neoplasms, Vascular Tissue
Meningeal Neoplasms
Central Nervous System Neoplasms
Nervous System Neoplasms
Neoplasms by Site
Nervous System Diseases
Bone Neoplasms
Bone Diseases
Musculoskeletal Diseases processed this record on May 25, 2017