A Study Comparing Two Carboplatin Containing Regimens for Children and Young Adults With Previously Untreated Low Grade Glioma
Study Details
Study Description
Brief Summary
This study is trying to learn and understand if the chemotherapy drug called carboplatin works as well as the standard therapy. The standard therapy for Low Grade Glioma (LGG) in children and young adults is using a combination of carboplatin and vincristine. Studies in children have shown that the use of carboplatin alone has promise of being just as effective for treating LGG as standard therapy. Additionally, this study will try to understand if treatment with carboplatin alone is associated with an improved quality of life for LGG patients and their families.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
| Phase 3 |
Detailed Description
Low grade gliomas are the most common central nervous system (CNS) tumors in the pediatric population. They consist of a heterogeneous group of tumors that are classified as World Health Organization (WHO) grade I or II. This includes astrocytic, oligodendroglial, neuronal and mixed glial- neuronal tumors. The clinical behavior of these tumors varies according to location and histology. The cerebellum is the most common location for low grade gliomas, but they can also arise in the cerebrum, deep midline structures such as the hypothalamus, optic pathway and, less frequently, in the brainstem.
Although the etiology of most childhood LGG is unknown, patients with Neurofibromatosis type 1 (NF-1) are one rare group predisposed to developing CNS tumors. NF-1 is an inherited disorder that affects the nervous system, eyes and skin. In addition, children are at an increased risk for developing optic pathway and hypothalamic low grade gliomas. Fifteen to-20% of NF-1 patients will develop these tumors, and they account for up to 70% of the tumors seen in this location. In half of patients with NF-1 and an optic pathway tumor, the patients are not symptomatic and the mass is found incidentally. Many optic gliomas in NF-1 patients follow an indolent course and stabilize without intervention. Patients are most commonly treated when there is deterioration in their vision or a symptomatic increase in the tumor size. Although the event free survival (EFS) has been reported to be similar between NF1 and non-NF1 patients, overall survival is higher in NF1 patients.
Location, as it affects the extent of surgical resection, plays a key role in the prognosis of all patients with low grade gliomas. Complete surgical resection offers a 90% survival rate at 10 years with often no need for adjuvant chemotherapy or radiation. Unfortunately, a gross total resection is not always possible due to the location of the tumor and its proximity to vital structures in the brain. In patients with an incomplete resection, the 10 year EFS is up to 74% with radiation treatment. However, toxicity from radiation, especially in young children, is significant and includes neurocognitive delays, endocrinopathies, secondary malignancy, ototoxicity and vasculopathy. Therefore, most experts agree that the standard of care in young children is to treat low grade gliomas that require adjuvant therapy after surgical resection/biopsy, or whose tumors are not surgically resectable with chemotherapy first, in order to delay or avoid radiation. This is especially true in children with NF-1, where the risk of a secondary malignancy after radiation therapy can be as high as 50% in the lifetime of the child.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Active Comparator: Carboplatine and Vincristine Induction: 10 weeks of Carboplatin and Vincristine therapy. Carboplatin 175 mg/m2 give an an IV infusion weeks 1, 2, 3, 4, 7, 8, 9, 10. Vincristine 1.5mg/m2 (0.05 mg/kg if child less than 12 kg) (maximum dose 2.0 mg) give as an IV bolus infusion on weeks 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Maintenance: Maintenance consists of 8, 6-week cycles of chemotherapy. It begins week 12 of Induction or when peripheral counts recover with ANC >1,000/µL and platelet count >100,000/µL. Each cycle will consist of 4 weekly doses of carboplatin, three weekly doses of vincristine (given concomitantly with the first 3 weeks of carboplatin), followed by two weeks of rest for a total of 6 weeks. Maintenance will continue for a total of 8 cycles. Carboplatin 175 mg/m2 as an IV continuous infusion over 60 minutes on Week 1, 2, 3, 4 of each cycle. Vincristine 1.5 mg/m2 (0.05 mg/ kg for children <12 kg) (maximum dose 2.0 mg) IV bolus infusion on Week 1, 2, 3 of each cycle. |
Drug: Carboplatin
Drug: Vincristine
|
| Experimental: Carboplatin alone Carboplatin is given once every four weeks, Each 4-week period is considered a cycle. Regimen B will last for 13 cycles which is equivalent to one year (52 weeks). Carboplatin 560 mg/m2 (or 19 mg/kg for children weighing less than 12 kg) IV over 1 hour every 4 weeks |
Drug: Carboplatin
|
Outcome Measures
Primary Outcome Measures
- Progression-free survival [3 years]
Secondary Outcome Measures
- Number of participants who experience improved quality of life as assessed by a Quality of Life questionnaire. [week-6, week-12, month-6, month-12]
- Tumor response rate of each regimen, assessed by magnetic resonance imaging (MRI) [3 years]
- Number of participants who experience toxicity on each regimen [3 years]
- Number of B-Raf proto-oncogene, serine/threonine kinase (BRAF) mutations that have an association with clinical outcomes. [3 years]
- Number of aberrations found through whole exome and ribonucleic acid (RNA) sequencing that coordinate with a clinical outcome. [3 years]
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Tumor Diagnosis: Low grade gliomas
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Patients must be less than 21 years of age at study entry.
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Central nervous system tumor. Patients with primary spinal cord lesions. Patients with metastatic disease are also allowed.
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No previous therapy for the tumor with the exception of corticosteroids and surgery.
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Performance status:Karnofsky Performance Scale (KPS for > 16 yrs of age) or Lansky Performance Score (LPS for ≤ 16 years of age) ≥ 50 assessed within two weeks prior to registration
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Seizure disorder should be well controlled.
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Normal organ and marrow function
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Female patients of childbearing potential must not be pregnant or breast-feeding. Female patients who have menstruated and are of childbearing potential must have a negative serum or urine pregnancy test prior to enrollment.
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Patients of childbearing or child fathering potential must be willing to use a medically acceptable form of birth control, which includes abstinence, while being treated on this study and for 6 months after the last drug administration.
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Ability of subject or parent/guardian to understand and the willingness to sign a written informed consent/assent document. Informed consent/assent must be signed prior to registration on this study.
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Tissue blocks or slides must be sent. If tissue is unavailable, the study chair must be notified prior to enrollment.
Exclusion Criteria:
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Patients who are receiving any other investigational or chemotherapeutic agents will be excluded.
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Patients with known inability to return for follow-up visits or obtain follow-up studies required to assess for toxicity to therapy.
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Patients with Subepenydmal Giant Cell Astrocytomas are excluded. Patients with intrinsic brainstem tumors of the pons will be excluded from the study.
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History of hypersensitivity reactions attributed to compounds of similar chemical or biologic composition to platinum based chemotherapy.
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Patients with uncontrolled inter-current illness are excluded.
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Females who are pregnant or breast feeding are excluded.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Phoenix Children's Hospital | Phoenix | Arizona | United States | 85016 |
| 2 | Rady Children's Hospital | San Diego | California | United States | 92123 |
| 3 | Yale University | New Haven | Connecticut | United States | 06520 |
| 4 | Ann & Robert H. Lurie Children's Hosptial of Chicago | Chicago | Illinois | United States | 60611 |
| 5 | St. Vincent Peyton Manning Children's Hospital | Indianapolis | Indiana | United States | 46260 |
| 6 | The Johns Hopkins Hospital | Baltimore | Maryland | United States | 21287 |
| 7 | Dana-Farber Cancer Institute | Boston | Massachusetts | United States | 02115 |
| 8 | Children's Hospitals and Clinics of Minnesota - Minneapolis | Minneapolis | Minnesota | United States | 55404 |
| 9 | Nationwide Children's Hospital | Columbus | Ohio | United States | 43205 |
| 10 | American Family Children's Hospital | Madison | Wisconsin | United States | 53792 |
Sponsors and Collaborators
- Natasha Pillay Smiley
Investigators
- Principal Investigator: Natasha Pillay Smiley, DO, Attending
Study Documents (Full-Text)
None provided.More Information
Publications
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- LGG 14C03