Combination Chemotherapy for T-Cell Leukemia/Lymphoma
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial aims to determine which combination of chemotherapy drugs best treats T-cell acute lymphoblastic leukemia (T-ALL) and T-cell lymphoblastic lymphoma (T-LLy) in young patients. Chemotherapy uses drugs to stop cancer cells from growing or dividing. The trial evaluates different drug combinations to identify the most effective one with the fewest side effects. Participants should have newly diagnosed T-ALL or T-LLy and should not have received prior chemotherapy, except for steroids or certain specific treatments. As a Phase 3 trial, this study represents the final step before FDA approval, offering participants a chance to contribute to potentially groundbreaking treatment advancements.
Do I have to stop taking my current medications for the trial?
The trial protocol does not specify if you need to stop taking your current medications. However, patients with a prior seizure disorder requiring anti-convulsant therapy are not eligible to receive nelarabine, which suggests that some medications may affect eligibility or treatment options.
Is there any evidence suggesting that this trial's treatments are likely to be safe?
Research shows that the drugs used in the trial have varying safety levels, depending on the specific drug and its administration. For example, studies have found that pegaspargase, a type of asparaginase, is usually well-tolerated but can cause allergic reactions in some individuals. Monitoring for blood clotting issues during treatment is important.
Cyclophosphamide, another drug in the trial, is approved for treating various cancers, including blood cancers, but can cause side effects like nausea and hair loss. It also carries risks of infertility and secondary cancers.
Daunorubicin and doxorubicin are chemotherapy drugs that can be effective but may cause heart problems and lower blood cell counts. Dexamethasone, a steroid used in cancer treatment, can help reduce inflammation but might affect mood and cause weight gain.
Methotrexate is approved for treating leukemia but can lead to liver and kidney problems. Nelarabine, used specifically for T-cell leukemia, can cause nerve damage in some patients.
Vincristine is also part of the treatment plan and is approved for treating leukemia. It can cause nerve damage and constipation but is generally considered effective.
Overall, these drugs have long been used in cancer treatment and have well-known safety profiles. Monitoring and managing side effects is crucial for using these medications safely.12345Why are researchers excited about this trial's treatments?
Researchers are excited about this combination chemotherapy for T-cell leukemia and lymphoma because it uses a multi-drug approach, potentially improving outcomes for patients. Unlike traditional treatments that may focus on fewer drugs, this regimen includes a mix of medications like vincristine sulfate, pegaspargase, and nelarabine, each attacking cancer cells in different ways. This diverse mechanism of action may enhance effectiveness and address the disease from multiple angles. Additionally, the inclusion of high-dose methotrexate, along with tailored dosing schedules, could lead to better disease control and reduced relapse rates. Overall, this treatment aims to provide a more comprehensive attack on cancer cells, offering hope for better patient outcomes.
What evidence suggests that this trial's treatments could be effective for T-cell leukemia/lymphoma?
This trial will evaluate the effectiveness of various chemotherapy combinations for T-cell leukemia and lymphoma. Asparaginase, one of the drugs tested, has been linked to an 87.5% chance of children with acute lymphoblastic leukemia remaining disease-free for 10 years. Cyclophosphamide, another drug in this trial, shows a high success rate, with 77% of T-cell lymphoma patients responding to treatment and 53% achieving complete remission. Methotrexate, especially in high doses, significantly improves survival, with 71.1% of certain T-cell non-Hodgkin lymphoma patients remaining event-free for 5 years. Nelarabine, also part of this trial, has shown a 91% chance of young patients with T-cell acute lymphoblastic leukemia staying disease-free for 4 years. Vincristine, when used with other drugs, leads to a 77% complete remission rate in certain lymphomas. These findings suggest that the combinations tested in this trial could effectively treat T-cell acute lymphoblastic leukemia and T-cell lymphoblastic lymphoma.678910
Who Is on the Research Team?
Stuart S Winter
Principal Investigator
Children's Oncology Group
Are You a Good Fit for This Trial?
This trial is for young patients with newly diagnosed T-cell acute lymphoblastic leukemia or T-cell lymphoblastic lymphoma. It's not open to those with Down syndrome, unclassifiable lymphoma, CNS3-positive/testicular involvement, pregnant/lactating females, or B-precursor lymphoblastic lymphoma.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Induction Therapy
All patients receive a combination of chemotherapy drugs including cytarabine, vincristine sulfate, prednisone, pegaspargase, daunorubicin hydrochloride, and methotrexate
Consolidation Chemotherapy
Patients receive methotrexate, cyclophosphamide, cytarabine, mercaptopurine, vincristine sulfate, and pegaspargase. Some patients also receive nelarabine and testicular radiotherapy
Interim Maintenance Chemotherapy
Patients receive vincristine sulfate, escalating doses of methotrexate, and pegaspargase. Some patients receive high dose methotrexate with leucovorin rescue
Delayed Intensification Chemotherapy
Patients receive vincristine sulfate, dexamethasone, doxorubicin hydrochloride, pegaspargase, methotrexate, nelarabine, cyclophosphamide, cytarabine, and thioguanine
Maintenance Chemotherapy
Patients receive vincristine sulfate, prednisone, mercaptopurine, methotrexate, and nelarabine. Treatment repeats every 84 days until 2-3 years from the start of interim maintenance therapy
Follow-up
Participants are monitored for safety and effectiveness after treatment
What Are the Treatments Tested in This Trial?
Interventions
- Asparaginase
- Cyclophosphamide
- Daunorubicin Hydrochloride
- Dexamethasone
- Doxorubicin Hydrochloride
- Mercaptopurine
- Methotrexate
- Nelarabine
- Pegaspargase
- Prednisone
- Radiation Therapy
- Thioguanine
- Vincristine Sulfate
Find a Clinic Near You
Who Is Running the Clinical Trial?
National Cancer Institute (NCI)
Lead Sponsor