Atorvastatin as GVHD Prophylaxis for Allogeneic Hematopoietic Cell Transplantation

Phase II Study of Atorvastatin, Micro-dose Methotrexate and Tacrolimus Administered Only to Transplant Recipients for the Prophylaxis of Acute Graft-versus-host Disease Following Allogeneic Hematopoietic Cell Transplantation

Hematopoietic stem cell transplantation is a procedure in which a person receives blood forming stem cells from a person called a "donor." The stem cells can be obtained from the hollow part of the hip bone or from blood.

A serious problem with this treatment is graft-versus-host disease (GVHD). This happens when stem cells from the donor attack normal cells of the recipient. Currently, there is no universal standard of care in the United States to prevent GVHD.

This study is being done to see if a medicine that is used to lower cholesterol can also help in reducing GVHD.

Patients will receive atorvastatin daily by mouth starting 14 days before stem cell transplant. They will continue to take atorvastatin until 180 days after transplant. This medicine may be stopped earlier if there is a bad side effect or a severe GVHD. Patients will also receive standard treatment to prevent GVHD. Patients will undergo many tests that are standard for their treatment at West Virginia University (WVU), including blood tests to check blood counts, kidney function and HIV status; blood test to check for pregnancy; Multi Gated Acquisition Scan (MUGA scan)or echocardiogram to test heart function; lung function testing; and bone marrow aspirate or biopsy. Patients will also have the option to provide blood samples for optional research related to the study.

Acute graft-versus-host disease (GVHD) is one of the most frequent complications after allogeneic hematopoietic stem cell transplantation (HSCT).(1) It develops in 30-75% of recipients of allogeneic HSCT depending on the degree of histocompatibility between the donor and the recipient, number of T-cells in the graft, recipient's age and GVHD prophylactic regimen used. (2-4) Novel strategies designed to effectively prevent the development of this life threatening complication of allogeneic transplantation are urgently needed.

Inclusion Criteria:

• Patients with a history of a hematological malignancy or bone marrow failure syndrome suitable for allogeneic stem cell transplantation in the opinion of treating transplant physician.
• Patients aged 18-75 years of age are eligible. Patients with age > 18 and ≤ 50 years will be eligible for myeloablative conditioning (MAC), while patients > 50 years of age, or those with previous history of autologous transplantation, high hematopoietic cell transplant comorbidity index (HCT-CI) score (>2), and baseline diagnosis of hodgkin's lymphoma, chronic lymphocytic leukemia and follicular lymphoma will be suitable for reduced intensity conditioning (RIC) transplantation (however intensity of conditioning regimen will remain at the discretion of treating physician).
• All patients must have at least one suitable human leukocyte antigen (HLA)-matched sibling or unrelated donor according to transplant center's guidelines (for selection of appropriate sibling donor).
• Patient must provide informed consent.
• Left ventricular ejection fraction ≥ 40%.
• Bilirubin ≤ 2 x the upper limit of normal (ULN) and aspartate aminotransferase (AST), and alanine aminotransferase (ALT) ≤ 3 x ULN; and absence of hepatic cirrhosis. For patients with Gilbert's syndrome, bilirubin ≤ 3 x ULN is permitted.
• Adequate renal function as defined by a serum creatinine clearance of ≥ 40% of normal calculated by Cockcroft-Gault equation.
• Carbon monoxide diffusing capacity (DLCOcor) corrected for hemoglobin or forced expiratory volume at one second (FEV1) or DL/VA ≥ 40% of predicted (a pulmonary function test).
• Karnofsky performance status > 70.
• A negative pregnancy test will be required for all women of child bearing potential. Breast feeding is not permitted.
• Patients with positive HIV serology are eligible.
• Patients who have previously been taking atorvastatin or any other statin drug will be eligible as long as there is no contraindication to switch to atorvastatin (40mg/day) in the opinion of the treating physician.
• Method of stem-cell collection from the sibling donor will be at the discretion of the treating physician. Although it is anticipated that majority of sibling donors will undergo Granulocyte colony-stimulating factor(G-CSF) induced stem cell mobilization; however donors undergoing bone marrow harvest or stem cell mobilization with experimental agents (e.g. plerixafor) will remain eligible for the study.

Exclusion Criteria:

• Uncontrolled arrhythmias or uncontrolled New York Heart Association class III-IV heart failure.
• Evidence of active bacterial, viral or fungal infection at the time of transplant conditioning.
• History of intolerance or allergic reactions with atorvastatin will not be eligible.
• Undergoing a T-cell depleted allogeneic transplantation
• Receiving conditioning regimens containing anti-thymocyte globulin, and/or campath