Intensified Dosing of Cellcept (Mycophenolate Mofetil) in Kidney Transplantation
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|ClinicalTrials.gov Identifier: NCT00943228|
Recruitment Status : Completed
First Posted : July 22, 2009
Last Update Posted : August 9, 2012
|Condition or disease||Intervention/treatment||Phase|
|Acute Rejection of Renal Transplant||Drug: mycophenolate mofetil||Phase 4|
Several studies have shown that early exposure to adequate levels of immunosuppression are required to reduce acute rejection rates in kidney transplantation.(1, 2) Our center has shown that early exposure of mycophenolate mofetil (MMF or Cellcept) is associated with acute rejection rates and that many patients are underexposed in the early transplant period.(2) In a recently completed multicenter Canadian (CLEAR) study we found that higher doses of mycophenolate mofetil (MMF 3 grams daily versus 2 grams daily) were associated with better early exposure by day 5 and that this was associated with less rejection but no increase in toxicity.(3) The best cut point that discriminated between low and high rejection rates was a mycophenolic acid (MPA) 12 hour area under the curve (AUC) of 40 mg*hr/L. Patients below this level experienced rejection rates of 50% compared to <16% for those above this level. Even with the higher dose 26% of subjects were inadequately exposed. Since medication adjustments based on drug levels is hampered by steady state conditions and the turn around time of MPA testing we are interested in exploring even higher initial doses of MMF with the aim to maximize the numbers of patients achieving adequate early exposure to MPA.
The primary objective of this study is to determine whether 4 gms daily of MMF results in a greater proportion of individuals adequately exposed as measured by a day 5 MPA AUC of >40 mg*hr/L.
The secondary objectives of this study are to assess the ability of this strategy to achieve target MPA AUC exposure of 40-60 mg*hr/L by day 14 and to determine the distribution of MMF doses that are necessary to achieve this level of exposure. Safety data (hemoglobin and WBC counts, need for further dose changes based on gastrointestinal intolerance, acute rejection, renal function, and wound infection) will be also collected over the first 3 months post transplantation.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||40 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Intensified Dosing of Cellcept in Kidney Transplantation Trial|
|Study Start Date :||February 2010|
|Actual Primary Completion Date :||February 2012|
|Actual Study Completion Date :||February 2012|
Experimental: mycophenolate mofetil
mycophenolate mofetil 2000mg BID (4g/day) for 14 days, followed by mycophenolate 1000mg BID (2g/day) thereafter
Drug: mycophenolate mofetil
High dose 4gms daily
- Adequate drug exposure. MPA AUC > 40 mg*hr/l [ Time Frame: First two weeks - 14 days ]
- Gastrointestinal symptoms (nausea, vomiting, abdominal pain, diarrhea). [ Time Frame: First two weeks - 14 days ]
- Leukopenia, anemia, thrombocytopenia and infection. [ Time Frame: First two weeks - 14 days ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00943228
|Canada, Nova Scotia|
|QE II Health Sciences Centre|
|Halifax, Nova Scotia, Canada, B3H 1V7|
|Principal Investigator:||Bryce A Kiberd, MD||Dalhousie University|