Combination Chemotherapy for Rhabdomyosarcoma

Recruiting in Palo Alto (17 mi)

+268 other locations

Overseen ByWendy Allen-Rhoades

Age: < 65

Sex: Any

Travel: May be covered

Time Reimbursement: Varies

Trial Phase: Phase 3

Waitlist Available

Sponsor: Children's Oncology Group

No Placebo Group

Pivotal Trial (Near Approval)

Prior Safety Data

Trial Summary

What is the purpose of this trial?This phase III trial compares the safety and effect of adding vinorelbine to vincristine, dactinomycin, and cyclophosphamide (VAC) for the treatment of patients with high risk rhabdomyosarcoma (RMS). High risk refers to cancer that is likely to recur (come back) after treatment or spread to other parts of the body. This study will also examine if adding maintenance therapy after VAC therapy, with or without vinorelbine, will help get rid of the cancer and/or lower the chance that the cancer comes back. Vinorelbine and vincristine are in a class of medications called vinca alkaloids. They work by stopping cancer cells from growing and dividing and may kill them. Dactinomycin is a type of antibiotic that is only used in cancer chemotherapy. It works by damaging the cell's deoxyribonucleic acid (DNA) and may kill cancer cells. Cyclophosphamide is in a class of medications called alkylating agents. It works by damaging the cell's DNA and may kill cancer cells. It may also lower the body's immune response. Vinorelbine, vincristine, dactinomycin and cyclophosphamide are chemotherapy medications that work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. This trial may have the potential to eliminate rhabdomyosarcoma for a long time or for the rest of patient's life.

Eligibility Criteria

This trial is for patients up to 50 years old with high-risk rhabdomyosarcoma (RMS), including embryonal and alveolar types, but not adult-type pleomorphic. Eligible participants must have newly diagnosed RMS, meet specific stage and group criteria, have a certain kidney function level, normal bilirubin levels unless obstructed by tumor, and provide informed consent. Pregnant or breastfeeding women are excluded as well as those with uncontrolled infections or central nervous system involvement of RMS.

Inclusion Criteria

My kidney function is normal or near normal.

I am 50 years old or younger.

My bilirubin levels are within the normal range for my age.

My cancer has spread to my bone marrow, confirmed by specific staining tests.

Exclusion Criteria

My cancer has spread to my brain or spinal cord.

I have not had chemotherapy or radiation for RMS before joining.

I do not have any untreated infections.

My RMS is a second cancer, previously treated with chemo or radiation.

Participant Groups

The study tests the addition of vinorelbine to standard chemotherapy (vincristine, dactinomycin, cyclophosphamide) in treating high-risk RMS. It also examines maintenance therapy post-chemotherapy to see if it helps eliminate cancer or prevent its return. The medications used aim to stop cancer cell growth by damaging their DNA.

2Treatment groups

Experimental Treatment

Group I: Arm B (vinorelbine, VAC, VINO-CPO)Experimental Treatment13 Interventions

Patients receive vinorelbine tartrate IV over 6-10 minutes on days 1 and 8, vincristine sulfate IV on day 15, dactinomycin IV over 1-15 minutes or IVP over 1-5 minutes on day 1 of cycles 1-5 and 8-14, and cyclophosphamide IV over 60 minutes on day 1. Treatment repeats every 21 days for up to 14 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo radiation therapy on weeks 13 and 40. MAINTENANCE: Patients receive vinorelbine tartrate IV over 6-10 minutes on days 1, 8, and 15, and cyclophosphamide PO on days 1-28. Treatment repeats every 28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients in both arms undergo CT, MRI, PET, x-ray imaging, and/or bone scan, as well as blood sample collection throughout the trial. Patients may also undergo bone marrow aspiration and/or biopsy as clinically indicated.

Group II: Arm A (VAC, VINO-CPO)Experimental Treatment13 Interventions

Patients receive vincristine sulfate IV on days 1, 8 and 15 of cycles 1-4, 7, 8, 11, and 12, and day 1 of cycles 5, 6, 9, 10, 13, and 14. Patients also receive dactinomycin IV over 1-15 minutes or IVP over 1-5 minutes on day 1 of cycles 1-5, 8-10, and 11-14, and cyclophosphamide IV over 60 minutes on day 1 of each cycle. Treatment repeats every 21 days for up to 14 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo radiation therapy on weeks 13 and 40. MAINTENANCE: Patients receive vinorelbine tartrate IV over 6-10 minutes on days 1, 8, and 15, and cyclophosphamide PO on days 1-28. Treatment repeats every 28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients in both arms undergo CT, MRI, PET, x-ray imaging, and/or bone scan, as well as blood sample collection throughout the trial. Patients may also undergo bone marrow aspiration and/or biopsy as clinically indicated.

Cyclophosphamide is already approved in United States, European Union, Canada, Japan for the following indications:

🇺🇸 Approved in United States as Cytoxan for: