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T2009-003 A Pilot Study of Decitabine and Vorinostat with Chemotherapy for Relapsed ALL
Protocol Number:
Patrick Brown
This is a pilot study using decitabine and vorinostat before and during chemotherapy with vincristine, dexamethasone, mitoxantrone, and peg-asparaginase in pediatric patients with acute lymphoblastic leukemia (ALL).
Inclusion Criteria: �Patients must be �1 and � 21 years of age when originally diagnosed with ALL. Diagnosis �Patients must have a diagnosis of acute lymphoblastic leukemia (ALL) with � 25% blasts in the bone marrow (M3), with or without extramedullary disease. �Patients may have CNS 1, 2 or 3 disease. �Karnofsky greater than 50% for patients greater than 16 years of age and Lansky greater than 50% for patients � 16 years of age. �Prior Therapy �Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study. �Patients must have had 2 or more prior therapeutic attempts defined as: �Relapse after going into remission from re-induction for the first or subsequent relapse (ie: 2nd , 3rd, 4th�relapse), OR �Refractory disease after first or greater relapse and a re-induction attempt, OR �Failing to go into remission from original diagnosis after 2 previous induction attempts. �Hematopoietic Stem Cell Transplant: Patients who have experienced their relapse after a HSCT are eligible, provided they have no evidence of Graft-versus-Host Disease (GVHD) and are at least 60 days post-transplant at the time of enrollment. �Prior anthracycline exposure: Patients must have less than 400 mg/m2 lifetime exposure of anthracycline chemotherapy. (See Appendix II for calculation worksheet) �Hematopoietic grow factors: It must have been at least 7 days since the completion of therapy with GCSF or other growth factors at the time of enrollment. It must have been at least 14 days since the completion of therapy with pegfilgrastim (Neulasta®). �Biologic (anti-neoplastic) therapy: It must be at least 28 days since the completion of therapy with a biologic agent such as a monoclonal antibody prior to study enrollment. Renal and Hepatic Function �Patient's serum creatinine must be � 1.5 x institutional upper limit of normal (ULN) according to age. If the serum creatinine is greater than 1.5 times normal, the patient must have a calculated creatinine clearance or radioisotope GRF � 70mL/min/1.73m2. �Patient's ALT and AST must be less than 5 x institutional upper limit of norm ULN. The hepatic requirements are waived for patients with known or suspected liver involvement who would otherwise be eligible after consultation with the Study Chair or Vice Chair. �Patient's total bilirubin must be � 1.5 x ULN. The hepatic requirements are waived for patients with known or suspected liver involvement who would otherwise be eligible. Cardiac Function: �Patient must have a shortening fraction � 29% or an ejection fraction � 40% by ECHO/MUGA. Reproductive Function �Female patients of childbearing potential must have a negative urine or serum pregnancy test confirmed prior to enrollment. �Female patients with infants must agree not to breastfeed their infants while on this study. �Male and female patients of child-bearing potential must agree to use an effective method of contraception approved by the investigator during the study. Exclusion Criteria: �Patients will be excluded if they are unable to swallow capsules. �Patients will be excluded if they are receiving Valproic Acid (VPA) therapy. �Patients will be excluded if they have a known allergy to any of the drugs used in the study. �Patients will be excluded if they have a systemic fungal, bacterial, viral or other infection that is exhibiting ongoing signs/symptoms related to the infection without improvement despite appropriate antibiotics or other treatment. �Patients will be excluded if there is a plan to administer non-protocol chemotherapy, radiation therapy, or immunotherapy during the study period. �Patients will be excluded if they have significant concurrent disease, illness, psychiatric disorder or social issue that would compromise patient safety or compliance with the protocol treatment or procedures, interfere with consent, study participation, follow up, or interpretation of study results
Decitabine is a demethylating agent and vorinostat is a HDAC inhibitor. The use of demethylating agents and HDAC inhibitors in combination have been previously shown to have synergistic effects in altering neoplastic pathways of cancer cells and be well tolerated in human clinical studies. With the ability of decitabine and vorinostat to alter the abnormal cellular pathways of leukemic blasts and essentially turn off anti-apoptotic proteins, the leukemia cells have become primed for cytotoxic cell kill via chemotherapeutic agents. This study will ask the question as to whether or not the combination of decitabine and vorinostat followed by chemotherapy is feasible and whether it can positively impact outcome in patients with relapsed or refractory acute lymphoblastic leukemia.
Last Update
11/22/2014 04:05 AM

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