Combination Chemotherapy for Pediatric Cancer
Trial Summary
What is the purpose of this trial?
This is a phase I/II study to evaluate the safety of combining intravenous (IV) atezolizumab and bevacizumab every three weeks, with daily oral cyclophosphamide and pharmacokinetic (PK)-guided sorafenib in children and adolescent and young adults (AYA) with relapsed or refractory solid malignancies (Part 1), and then evaluate the response rate of this combination in children, AYA with relapsed or refractory hepatocellular carcinoma (HCC) and other rare solid malignancies (Part 2). Primary Objectives Part 1 * To establish the safety associated with the administration of the combination of cyclophosphamide, PK-guided sorafenib, bevacizumab and atezolizumab in children and AYA with relapsed or refractory solid tumors * To determine if sorafenib systemic exposure can be successfully targeted to an AUC between 20 and 55 hr·µg/mL by Day 21 of cycle 1 in 60% of evaluable patients, when given in combination with cyclophosphamide, bevacizumab, and atezolizumab in children and AYA with relapsed or refractory solid tumors Part 2 * To evaluate the response rate (CR+PR) of the combination of cyclophosphamide, PK-guided sorafenib, bevacizumab and atezolizumab in children and AYA with relapsed or refractory HCC following two cycles of therapy * To determine if the use of PK-guided sorafenib dosing to maintain a systemic exposure between 20 and 55 reduces the interpatient pharmacokinetic variability of sorafenib and the incidence of sorafenib- induced skin toxicities in children and AYA with relapsed or refractory HCC and other rare solid tumors Parts 1 \& 2 * To determine if the combination of cyclophosphamide, PK-guided sorafenib and atezolizumab will result in increased intratumoral T-cell infiltration of CD8+C45RO+ cells between baseline and following two courses of therapy in pediatric children and AYA with relapsed or refractory solid tumors following two cycles of therapy * To characterize the pharmacokinetics of atezolizumab in combination with cyclophosphamide, PK-guided sorafenib and bevacizumab in children and AYA with relapsed or refractory solid tumors * To assess the feasibility of performing contrast enhanced ultrasound and explore the correlation between quantitative CEUS parameters and clinical response. Secondary Objectives Part 1 • To describe the response rate (CR+PR) of the combination of cyclophosphamide, PK-guided sorafenib, bevacizumab and atezolizumab in children and AYA with relapsed or refractory solid tumors following two cycles of therapy Part 2 • To describe the response rate (CR+PR) of the combination of cyclophosphamide, PK-guided sorafenib, bevacizumab and atezolizumab in children and AYA with relapsed or refractory fibrolamellar carcinoma, desmoplastic small round cell tumor, malignant rhabdoid tumor, and other rare solid tumors following two cycles of therapy Parts 1\&2 * To describe the number of children with liver tumors, initially judged unresectable at diagnosis, that can have their primary tumor resected after treatment with oral cyclophosphamide and sorafenib with intravenous bevacizumab and atezolizumab * To describe changes in immune cells in the peripheral blood at periodic times before and after treatment with this combination chemoimmunotherapy * To describe the PFS, EFS, and OS in patients treated with the combination of cyclophosphamide, PK-guided sorafenib, bevacizumab, and atezolizumab in patients with relapsed or refractory HCC, DSRCT, MRT, FL-HCC and other rare solid tumors
Will I have to stop taking my current medications?
The trial protocol does not specify whether you must stop taking your current medications. However, it mentions that patients must have fully recovered from the acute toxic effects of previous treatments and that certain time periods must elapse after previous therapies before enrolling. It's best to discuss your current medications with the trial team to get specific guidance.
What data supports the effectiveness of the drug combination Atezolizumab, Tecentriq, Bevacizumab, Avastin, Cyclophosphamide, Cytoxan, Neosar, Endoxan, Sorafenib, Nexavar for pediatric cancer?
Is the combination chemotherapy for pediatric cancer generally safe in humans?
The research articles provided do not contain specific safety data for the combination chemotherapy involving Atezolizumab, Tecentriq, Bevacizumab, Avastin, Cyclophosphamide, Cytoxan, Neosar, Endoxan, Sorafenib, or Nexavar. They focus on dexrazoxane, which is used to reduce heart damage from other cancer drugs, but may increase the risk of other cancers in some cases.678910
What makes the combination chemotherapy with Atezolizumab, Bevacizumab, Cyclophosphamide, and Sorafenib unique for pediatric cancer?
This combination therapy is unique because it includes Atezolizumab, an immunotherapy drug that helps the immune system attack cancer cells, and Bevacizumab, which blocks blood supply to tumors, alongside traditional chemotherapy agents Cyclophosphamide and Sorafenib. This multi-faceted approach targets cancer through different mechanisms, potentially offering a more comprehensive treatment strategy for pediatric cancer.13111213
Eligibility Criteria
This trial is for children and young adults under 30 with certain types of advanced solid tumors that can't be removed by surgery. They should have a specific level of organ function, not be on other investigational drugs, and must not be pregnant or breastfeeding. Participants need to have recovered from previous treatments and agree to birth control measures.Inclusion Criteria
Exclusion Criteria
Trial Timeline
Screening
Participants are screened for eligibility to participate in the trial
Treatment Part 1
Participants receive oral cyclophosphamide and sorafenib with intravenous bevacizumab and atezolizumab to establish safety and tolerability
Treatment Part 2
Participants continue treatment to evaluate response rate in relapsed or refractory HCC and other rare solid malignancies
Follow-up
Participants are monitored for safety and effectiveness after treatment
Treatment Details
Interventions
- Atezolizumab (Monoclonal Antibodies)
- Bevacizumab (Monoclonal Antibodies)
- Cyclophosphamide (Alkylating agents)
- Sorafenib (Kinase Inhibitor)
Atezolizumab is already approved in United States, European Union for the following indications:
- Melanoma
- Hepatocellular carcinoma
- Small cell lung cancer
- Non-small cell lung cancer
- Urothelial carcinoma
- Melanoma
- Hepatocellular carcinoma
- Small cell lung cancer
- Non-small cell lung cancer
- Urothelial carcinoma