A Prospective Study on the Tolerability and Efficacy of the de Novo Use of Myfortic in Liver Transplant Recipients

Study Overview
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Brief Summary
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The objective of this study is to compare the safety and efficacy of Myfortic with CellCept in liver transplant patients. Myfortic and CellCept are both immunosuppressive (anti-rejection) drugs. CellCept is commonly used after liver transplantation but gastrointestinal (GI) side effects are very common, sometimes necessitating in its discontinuation. Myfortic is a new drug similar to CellCept, except it is enteric-coated. Our hypothesis is that Myfortic has less GI side effects than CellCept and also has comparable effectiveness to CellCept.

Detailed Description
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This is a prospective, randomized, double-blinded, single center, safety and efficacy study comparing Myfortic with CellCept used after liver transplantation. Patients with biopsy-proven acute cellular rejection, renal insufficiency (i.e. acute or chronic renal failure requiring hemodialysis or patients with creatinine clearance < 50 ml/min), or calcineurin inhibitor-induced neurotoxicity (defined as the presence of neurologic symptoms such as tremors, altered mental status, seizures, etc) will be randomized to start on either Myfortic (720 mg po bid) or CellCept (1 gm po bid). In those patients with calcineurin-induced neurotoxicity or nephrotoxicity, tacrolimus or cyclosporine doses will also be reduced to maintain serum trough levels of 4-8 mg/dl or 100-200 mg/dl, respectively. Comparison: Thirty patients will be enrolled and randomized in this two-armed, double-blinded study- half of the patients will receive Myfortic and the other half, CellCept.

Official Title
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A Prospective Study on the Tolerability and Efficacy of the de Novo Use of Myfortic in Liver Transplant Recipients

Conditions
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Immunosuppression

Intervention / Treatment
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* Drug: Myfortic
* Drug: CellCept


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ALL patients will be adult liver transplant recipients, males or females, 18-80 years of age. Patients must be 30 to 180 days (1 to 6 months) post-transplant to be eligible. Patients currently receiving tacrolimus or cyclosporine with or without corticosteroids as part of their immunosuppressive regimen. Patients with renal insufficiency (history of renal insufficiency or renal failure in the past, patients on hemodialysis, patients with a rising creatinine post-transplant). Patients with biopsy-proven acute cellular rejection (mild, moderate, or severe based on Rejection Activity Index (RAI) as graded by pathologists at UPMC) or repeated bouts of rejection (greater than 2 episodes within a 30 day period). Patients with tacrolimus- or cyclosporine-induced neurotoxicity. Females of childbearing potential must have a negative serum pregnancy test prior to the inclusion period. Exclusion Criteria: Multi-organ transplant patients. HIV positive patients. Living-related liver transplant recipients Pregnant patients and nursing mothers. Patients with a history of extra-hepatic malignancy within the last five years, except excised squamous or basal cell carcinoma of the skin. Patients with thrombocytopenia (<50,000/mm3), with an absolute neutrophil count of <1,000/mm3 and/or leukocytopenia (<2,000/mm3), and/or hemoglobin <7.0 g/dL prior to enrollment. Presence of clinically significant infection requiring continued therapy, severe diarrhea, active peptic ulcer disease, or uncontrolled diabetes mellitus. Evidence of drug and/or alcohol abuse. Decisionally impaired subjects who are not medically or mentally capable of providing consent themselves

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Myfortic Group<br>Subjects in the Myfortic arm will receive Myfortic 360mg or 720 mg BID for 90 days | Drug: Myfortic<br>* Myfortic 360mg or 720 mg BID for 90 days<br>|
| Active Comparator: CellCept Group<br>Subjects in the CellCept arm will receive CellCept 500mg or 1000mg BID for 90 days | Drug: CellCept<br>* CellCept 500mg or 1000mg BID for 90 days<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| GI Side Effects as Assessed by Gastro Intestinal Symptoms Rating Scale (GSRS) of Enteric-coated Mycophenolate Sodium vs Mycophenolate Mofetil | The GSRS contains 15 items, each rated on a seven-point Likert scale from no discomfort to very severe discomfort. Based on a factor analysis, the 15 GSRS items break down into the following five scale: abdominal pain syndrome ( abdominal pain, hunger pains, and nausea); reflux syndrome (heartburn and acid regurgitation), diarrhea syndrome (diarrhea, loose stools and urgent need for defecation), indigestion syndrome (borborygmus, abdominal distension, eructation and increased flatus) and constipation syndrome (constipation, hard stools, and feeling of incomplete evacuation). The GSRS is a disease-specific instrument of 15 items combined into five symptom clusters depicting Reflux, Abdominal pain, Indigestion, Diarrhea, and Constipation. The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms. The total GSRS range of scores is 15 to 105 with higher scores meaning the worst of symptoms. | screening, 2, 6 and 12 weeks | 
| GI Side Effects as Assessed by Gastro Intestinal Symptoms Rating Scale (GSRS) of Enteric-coated Mycophenolate Sodium vs Mycophenolate Mofetil (Abdominal Pain Subscale) | The GSRS contains 15 items, each rated on a seven-point Likert scale from no discomfort to very severe discomfort. Based on a factor analysis, the 15 GSRS items break down into the following five scale: abdominal pain syndrome ( abdominal pain, hunger pains, and nausea); reflux syndrome (heartburn and acid regurgitation), diarrhea syndrome (diarrhea, loose stools and urgent need for defecation), indigestion syndrome (borborygmus, abdominal distension, eructation and increased flatus) and constipation syndrome (constipation, hard stools, and feeling of incomplete evacuation). The GSRS is a disease-specific instrument of 15 items combined into five symptom clusters depicting Reflux, Abdominal pain, Indigestion, Diarrhea, and Constipation. The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms. The abdominal Pain subscale range is 3 to 21 with higher scores means worst symptoms | screening, 2, 6 and 12 weeks | 
| GI Side Effects as Assessed by Gastro Intestinal Symptoms Rating Scale (GSRS) of Enteric-coated Mycophenolate Sodium vs Mycophenolate Mofetil (Reflux Subscale) | The GSRS contains 15 items, each rated on a seven-point Likert scale from no discomfort to very severe discomfort. Based on a factor analysis, the 15 GSRS items break down into the following five scale: abdominal pain syndrome ( abdominal pain, hunger pains, and nausea); reflux syndrome (heartburn and acid regurgitation), diarrhea syndrome (diarrhea, loose stools and urgent need for defecation), indigestion syndrome (borborygmus, abdominal distension, eructation and increased flatus) and constipation syndrome (constipation, hard stools, and feeling of incomplete evacuation). The GSRS is a disease-specific instrument of 15 items combined into five symptom clusters depicting Reflux, Abdominal pain, Indigestion, Diarrhea, and Constipation. The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms. Reflux subscale range is 2 to 14 with higher scores means worst symptoms | screening, 2, 6 and 12 weeks | 
| GI Side Effects as Assessed by Gastro Intestinal Symptoms Rating Scale (GSRS) of Enteric-coated Mycophenolate Sodium vs Mycophenolate Mofetil ( Indigestion Subscale) | The GSRS contains 15 items, each rated on a seven-point Likert scale from no discomfort to very severe discomfort. Based on a factor analysis, the 15 GSRS items break down into the following five scale: abdominal pain syndrome ( abdominal pain, hunger pains, and nausea); reflux syndrome (heartburn and acid regurgitation), diarrhea syndrome (diarrhea, loose stools and urgent need for defecation), indigestion syndrome (borborygmus, abdominal distension, eructation and increased flatus) and constipation syndrome (constipation, hard stools, and feeling of incomplete evacuation). The GSRS is a disease-specific instrument of 15 items combined into five symptom clusters depicting Reflux, Abdominal pain, Indigestion, Diarrhea, and Constipation. The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms. The Indigestion subscale range is 4 to 28 with higher scores means worst symptoms | screening, 2, 6 and 12 weeks | 
| GI Side Effects as Assessed by Gastro Intestinal Symptoms Rating Scale (GSRS) of Enteric-coated Mycophenolate Sodium vs Mycophenolate Mofetil ( Diarrhea Subscale) | The GSRS contains 15 items, each rated on a seven-point Likert scale from no discomfort to very severe discomfort. Based on a factor analysis, the 15 GSRS items break down into the following five scale: abdominal pain syndrome ( abdominal pain, hunger pains, and nausea); reflux syndrome (heartburn and acid regurgitation), diarrhea syndrome (diarrhea, loose stools and urgent need for defecation), indigestion syndrome (borborygmus, abdominal distension, eructation and increased flatus) and constipation syndrome (constipation, hard stools, and feeling of incomplete evacuation). The GSRS is a disease-specific instrument of 15 items combined into five symptom clusters depicting Reflux, Abdominal pain, Indigestion, Diarrhea, and Constipation. The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms. The Diarrhea subscale range is 3 to 21 with higher scores means worst symptoms | screening, 2, 6 and 12 weeks | 
| GI Side Effects as Assessed by Gastro Intestinal Symptoms Rating Scale (GSRS) of Enteric-coated Mycophenolate Sodium vs Mycophenolate Mofetil ( Constipation Subscale) | The GSRS contains 15 items, each rated on a seven-point Likert scale from no discomfort to very severe discomfort. Based on a factor analysis, the 15 GSRS items break down into the following five scale: abdominal pain syndrome ( abdominal pain, hunger pains, and nausea); reflux syndrome (heartburn and acid regurgitation), diarrhea syndrome (diarrhea, loose stools and urgent need for defecation), indigestion syndrome (borborygmus, abdominal distension, eructation and increased flatus) and constipation syndrome (constipation, hard stools, and feeling of incomplete evacuation). The GSRS is a disease-specific instrument of 15 items combined into five symptom clusters depicting Reflux, Abdominal pain, Indigestion, Diarrhea, and Constipation. The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms. Constipation subscale range is 3 to 21 with higher scores means worst symptoms | screening, 2, 6 and 12 weeks | 
| Number of Participants With Bone Marrow Suppression | Number of participants with: Thrombocytopenia (<50,000 mm3), Leukopenia (< 2000 mm3), absolute neutrophils count ( <1000 mm3) or hemoglobin ( < 7.0 g/dL) | 12 weeks | 
| Incidence of Cytomegalovirus Infection or Disease During the Study Period | number of participants | 12 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Drug Discontinuation Due to Side Effects | Drug discontinuation due to drug side effects regarding Cellcept and Myfortic. | 12 weeks | 
| Number of Participants With Clinically Significant Decrease in Serum Creatinine From Baseline Through Week 12 | Creatinine levels | 12 weeks | 
| Number of Participants With Neurotoxicity |  | 12 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Liver transplantation, mycophenolate mofetil, gastrointestinal, adverse effects