Budesonide for Liver Transplant Immune Suppression

Enrollment of Subjects: All consecutive patients undergoing liver transplant (LT) at the
University Of Cincinnati Transplant Center will be screened for enrollment upon admission for
transplant surgery. Subjects will be approached after permission from attending on record by
one of the members of research team. Study rationale, procedures, different interventions,
potential benefits and risks as well as alternatives to study participation will be explained
to the subjects in their native language in non-medical terms, as much possible. For
non-English speakers, certified interpreter services will be used. Subjects meeting all of
the inclusion and none of the exclusion criteria will be educated about the study and written
informed consent will be obtained either 12 hours prior to undergoing LT or within 72 hours
of completion of a successful transplant surgery. This time frame is proposed so that
subjects have sufficient time to go over the study and are not pressured to sign the consent
within a short time frame prior to LT surgery. In addition, all patients being placed on
liver transplant list at our center will be provided with a copy of the consent form in the
LT clinic at the time of listing for review only so that this study proposal is not
completely novel to them at the time of LT surgery. A pregnancy test will be performed on all
the females of childbearing potential.

Enrollment of Controls:

Each study subject will be matched with a control subject. Patients undergoing LT at
University of Cincinnati that are not part of the study will serve as controls. Confounding
and effect modifiers will be accounted for by matching the controls on multiple variables
which may affect the primary outcome of ACR. These variables include: age less than 55 years,
serum creatinine greater than 1.5 ng/mL, the use of antibody therapy at the time of
transplant and a history of autoimmune hepatitis. To minimize the selection bias, the matched
control will be selected in a manner that he/she would have undergone liver transplantation
within a 24 week period (8 weeks prior or 16 weeks after) of the liver transplantation of the
matched study subject. This means that data from controls will also be collected
prospectively. Since outcomes are being measured at week 24 of liver transplantation, this
will ensure that the investigators have no influence on selecting the controls with a known
outcome. Controls will be identified through LT clinic. They will not undergo any study
specific procedures, interventions, testing or evaluations. A written and informed consent
will be obtained from all controls prior to their enrollment in the study. University of
Cincinnati transplant program has performed 90-100 LTs each year over last 2 calendar years.
Application of inclusion and exclusion criteria of our study to this database estimates that
65% of all LTs will be potential candidates for participation either as study subject or
control. Based on this estimate the investigators are confident that this enrollment goal of
20 subjects and 20 controls can be achieved in 9-12 month period.

Study Drug:

After LT surgery, subjects will be started on SIS including intravenous corticosteroids,
calcineurin inhibitor (CNI), mycophenolate mofetil (MMF) +/- thymoglobulin as per University
of Cincinnati LT immune suppression protocol (UC-ISP).

On post-operative day 4, intravenous corticosteroids will be discontinued and replaced by the
study drug; budesonide. Based on pharmacokinetic and bioavailability studies, 3 mg of
budesonide is equivalent to 10 mg of prednisone. Starting dose of budesonide will be 9 mg by
mouth daily which will be equivalent to 30-40 mg of prednisone used as standard of care.
Study drug will be tapered over the next 3 months as detailed in Table 1 and in line with
UC-ISP. At 3 months post LT, study drug will be discontinued. Subjects with autoimmune
hepatitis as an etiology for LT will be initiated on prednisone 5 mg daily in addition to SIS
as per UC-ISP.

Table 1: Study Drug Taper Time post Liver Transplantation Immunosuppressive therapy Days 0-3
Standard immune suppression (SIS) + Intravenous corticosteroids Days 4-30 SIS + Budesonide 9
mg Days 31-45 SIS + Budesonide 6 mg Days 46-90 SIS + Budesonide 3 mg Days 90 onwards SIS

Study Assessments (Visits 3-7):

Subjects will undergo study visits in the LT clinic or inpatient transplant unit at post-LT
weeks 2,4,6,8 and 12 (Figure 1). At each visit, data regarding history and physical, vital
signs, concomitant medications, use of hypoglycemic agents or insulin, adverse event
assessment, laboratory blood work including blood counts, chemistries, blood glucose, liver
function test, and tacrolimus trough level will be recorded. Blood samples for early morning
cortisol level (between 6 AM and 9 AM) will be collected at week 4 and week 8 visits only.
These samples will be centrifuged at 3600 rpm for 15 minutes, appropriately labelled and
stored in - 80 C freezer at Schubert Research Clinic. All the samples from the study will be
analyzed for serum cortisol in 1-2 batches to ensure uniform and standardized testing
conditions and reagents. No other testing will be performed on these samples. Hemoglobin A1c
will be checked at week 12 (visit 7). Additionally, at each visit, the study team will
perform a pill count for the study drug. Study drugs will be dispensed every 4 weeks at study
visits 2, 4 and 6. Decisions regarding obtaining a liver biopsy for evaluation of abnormal
liver tests will be at the discretion of treating physician. Biopsy proven ACR will be
treated according to UC-Rejection protocol.

Study drug will be discontinued at week 12 (visit 7) and subjects will continue routine
post-LT follow up as per the current standard of care.

A low dose ACTH stimulation test will be performed at Schubert Research Clinic at week 12
visit. This test comprises of intravenous injection of cosyntropin at a dose of 1 micrograms
per 1.73 m2 of body surface area and checking the serum cortisol levels at baseline and 30
minutes after cosyntropin injection. This test is used to assess adrenal insufficiency with a
high sensitivity.

Inclusion Criteria:

- Female or male subjects aged 21-75 years old

- Received a primary liver transplant within 4 days of enrollment

Exclusion Criteria:

- Received previous organ transplants

- Undergoing multiple organ transplants

- Recipients with advanced fibrosis in graft

- Treatment plan for subject includes receiving immunosuppressant therapy other than
standard immune suppression (SIS) as per University of Cincinnati LT immune
suppression protocol (UC-ISP).

- Inability to take enteral (orally or by tube feed) medications by day 4
post-transplant

- Subjects with diabetes mellitus prior to transplant (diabetes mellitus defined as use
of hypoglycemic agents or HbA1c > 6.4 prior to transplant)

- Subjects who have any severe medical condition requiring acute or chronic treatment
that in the investigator's opinion would interfere with study participation.

- Subjects who have been exposed to an investigational therapy within 30 days prior to
enrollment or 5 half-lives on the investigational product, whichever is greater.

- Subjects in which concomitant use of medications which are inhibitors of CYP3A4 (such
as ketoconazole, itraconazole, ritonavir, indinavir, saquinavir, erythromycin) cannot
be avoided during the study period.

- Pregnant females

- Diminished mental capacity to consent for the study as determined by attending on the
record.