Status and phase
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About
This study proposes to treat patients with the combination of sorafenib and irinotecan. Patients with relapsed, recurrent, refractory, or high risk malignancies whose tumors possess a non-synonymous mutation in Raf, PDGFR, VEGFR, Flt-3, KIT, JAK, STAT, RAS, MEK, or ERK will be eligible for the study. Very few phase 2 clinical trials have been performed in pediatrics using targeted agents in combination with conventional chemotherapy agents. Furthermore, since some combinations such as the combination of this study (sorafenib and irinotecan) have shown additive/synergistic effects in preclinical studies, therapy selecting for those patients who possess mutations targeted by the TKI of the study, may unveil activity that has not been previously observed. Thus, the investigators hope to determine whether the addition of additive/synergistic chemotherapy will increase efficacy of the targeted agent and/or increase tumor susceptibility to the targeted agent, resulting in increased anti-tumor activity.
Sex
Ages
Volunteers
Inclusion criteria
Greater than or equal to 24 months to 21 years of age
Relapsed, refractory, or recurrent malignancy. All solid tumor diagnoses will be eligible.
Pathologic confirmation of the diagnosis either at original diagnosis or recurrence.
Known non-synonymous mutation in the following genes: Raf, PDGFR, VEGFR, Flt-3, KIT, JAK, STAT, RAS, MEK, or ERK. Genomic sample preferably from relapse, but may be from other stage of treatment if relapse sample is not reasonably obtainable. Genetic analysis for determination of eligibility occurs as part of routine care and is not being performed specifically for the purposes of this study.
Measurable disease defined as lesions that can be accurately measured in at least one dimension (longest diameter to be recorded) as ≥ 10 mm with CT or MRI scan, as ≥ 20 mm by chest x-ray, or ≥ 10 mm with calipers by clinical exam.
Prior Therapy
Patients must have a performance status corresponding to Karnofsky or Lansky greater than or equal to 50%. Use Karnofsky for patients > 16 years of age and Lansky for patients ≤ 16 years of age. 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.
Normal bone marrow and organ function as defined below:
Adequate cardiovascular functioning for sorafenib, including:
Women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately.
Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).
Exclusion criteria
Patients who have received a cumulative doxorubicin equivalent of > 375mg/m^2 total lifetime dose.
Surgery Criteria: Patients who have had or are planning to have the following invasive procedures are not eligible:
Patients must not be on therapeutic anti-coagulation. Prophylactic anticoagulation (i.e. low dose warfarin) of venous or arterial devices is allowed provided that the requirements for PT, INR, and PTT are met.
Patients with evidence of bleeding diathesis are not eligible.
Patients with known Gilbert syndrome are not eligible.
A history of other malignancy ≤ 5 years previous with the exception of basal cell or squamous cell carcinoma of the skin which were treated with local resection only or carcinoma in situ of the cervix.
Currently receiving any other investigational agents.
A history of allergic reactions attributed to compounds of similar chemical or biologic composition to sorafenib or irinotecan.
Currently on the following concomitant medications or substances that have the potential to affect the activity or pharmacokinetics of the study drug(s). The use of the following medications should be discontinued prior to initiation of protocol therapy and should be avoided during protocol therapy if reasonable alternatives exist.
Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, cardiac dysfunction, unstable angina pectoris, cardiac arrhythmia, prolonged QTc, interstitial lung disease, gastrointestinal perforation, hepatic impairment/failure, or renal impairment/failure.
Pregnant and/or breastfeeding. Women of childbearing potential must have a negative serum or urine pregnancy test within 7 days of study entry.
Known HIV-positivity on combination antiretroviral therapy because of the potential for pharmacokinetic interactions with sorafenib or irinotecan. In addition, these patients are at increased risk of lethal infections when treated with marrow-suppressive therapy. Appropriate studies will be undertaken in patients receiving combination antiretroviral therapy when indicated.
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Data sourced from clinicaltrials.gov
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