Trial Outcomes & Findings for Rapamycin Versus Mycophenolate Mofetil in Kidney-Pancreas Recipients (NCT NCT00533442)

NCT ID: NCT00533442

Last Updated: 2017-07-12

Results Overview

Freedom from biopsy-proven acute rejection of the kidney allograft; Freedom from biopsy-proven acute rejection of the pancreas allograft; Death-censored kidney graft survival; Death-censored pancreas graft survival; Death-uncensored graft (kidney and pancreas) survival; and Patient survival.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

170 participants

Primary outcome timeframe

over 1-10 years post-transplant

Results posted on

2017-07-12

Participant Flow

From September 1, 2000 through December 15, 2009, 170 consecutive patients with type 1 diabetes and ESRD were randomized to receive either Rapamycin (N=84) or MMF (N=86) immediately prior to transplant. Post-transplant clinical follow-up of patients continued through January 15, 2011.

A randomized block design was implemented for the randomization scheme using Proc Plan in SAS. Patients were randomly assigned (allocation ratio of 1:1) to the two treatment arms in blocks of 4 and 6 patients (block sizes were also chosen randomly), ensuring a balance of patients across treatment arms after each block of patients was randomized.

Participant milestones

Participant milestones
Measure
Tacrolimus Plus MMF Plus Steroids
This group of kidney-pancreas recipients was randomized to receive mycophenolate mofetil and tacrolimus after transplantation. Tacrolimus and mycophenolate mofetil: MMF 1 gm BID beginning 1st day postoperative day
Tacrolimus Plus Rapamycin Plus Steroids
Patients randomized to this arm received Sirolimus, after kidney-pancreas transplantation. Rapamycin: Rapamycin was initiated on day 1 postoperatively, 4mg/day;levels were maintained 5-8ng/ml. Those patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day. Rapamune and Tacrolimus: Sirolimus 2 mg/day beginning 1st postoperative day (trough target levels: 10-15ng/ml) Mycophenolate Mofetil: Patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day.
Allocation and Intent to Treat Analysis
STARTED
86
84
Allocation and Intent to Treat Analysis
COMPLETED
86
84
Allocation and Intent to Treat Analysis
NOT COMPLETED
0
0
Follow-up
STARTED
86
84
Follow-up
COMPLETED
77
74
Follow-up
NOT COMPLETED
9
10

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Rapamycin Versus Mycophenolate Mofetil in Kidney-Pancreas Recipients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Tacrolimus Plus MMF Plus Steroids
n=86 Participants
This group of kidney-pancreas recipients was randomized to receive mycophenolate mofetil and tacrolimus after transplantation. Tacrolimus and mycophenolate mofetil: MMF 1 gm BID beginning 1st day postoperative day
Tacrolimus Plus Rapamycin Plus Steroids
n=84 Participants
Patients randomized to this arm received Sirolimus, after kidney-pancreas transplantation. Rapamycin: Rapamycin was initiated on day 1 postoperatively, 4mg/day;levels were maintained 5-8ng/ml. Those patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day. Rapamune and Tacrolimus: Sirolimus 2 mg/day beginning 1st postoperative day (trough target levels: 10-15ng/ml) Mycophenolate Mofetil: Patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day.
Total
n=170 Participants
Total of all reporting groups
Age, Continuous
43.4 years
STANDARD_DEVIATION 9.3 • n=93 Participants
41.5 years
STANDARD_DEVIATION 8.2 • n=4 Participants
42.5 years
STANDARD_DEVIATION 8.8 • n=27 Participants
Sex: Female, Male
Female
31 Participants
n=93 Participants
34 Participants
n=4 Participants
65 Participants
n=27 Participants
Sex: Female, Male
Male
55 Participants
n=93 Participants
50 Participants
n=4 Participants
105 Participants
n=27 Participants
Race/Ethnicity, Customized
Caucasian
55 Participants
n=93 Participants
47 Participants
n=4 Participants
102 Participants
n=27 Participants
Race/Ethnicity, Customized
Hispanic
19 Participants
n=93 Participants
31 Participants
n=4 Participants
50 Participants
n=27 Participants
Race/Ethnicity, Customized
African-American
11 Participants
n=93 Participants
6 Participants
n=4 Participants
17 Participants
n=27 Participants
Race/Ethnicity, Customized
Other
1 Participants
n=93 Participants
0 Participants
n=4 Participants
1 Participants
n=27 Participants

PRIMARY outcome

Timeframe: over 1-10 years post-transplant

Freedom from biopsy-proven acute rejection of the kidney allograft; Freedom from biopsy-proven acute rejection of the pancreas allograft; Death-censored kidney graft survival; Death-censored pancreas graft survival; Death-uncensored graft (kidney and pancreas) survival; and Patient survival.

Outcome measures

Outcome measures
Measure
Tacrolimus Plus MMF Plus Steroids
n=86 Participants
This group of kidney-pancreas recipients was randomized to receive mycophenolate mofetil and tacrolimus after transplantation. Tacrolimus and mycophenolate mofetil: MMF 1 gm BID beginning 1st day postoperative day
Tacrolimus Plus Rapamycin Plus Steroids
n=84 Participants
Patients randomized to this arm received Sirolimus, after kidney-pancreas transplantation. Rapamycin: Rapamycin was initiated on day 1 postoperatively, 4mg/day;levels were maintained 5-8ng/ml. Those patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day. Rapamune and Tacrolimus: Sirolimus 2 mg/day beginning 1st postoperative day (trough target levels: 10-15ng/ml) Mycophenolate Mofetil: Patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day.
Event-Specific Survival Comparisons
Biopsy-Proven Acute Rejection of the Kidney
22 Participants
8 Participants
Event-Specific Survival Comparisons
Biopsy-Proven Acute Rejection of the Pancreas
9 Participants
1 Participants
Event-Specific Survival Comparisons
Death-Censored Kidney Graft Failure
18 Participants
10 Participants
Event-Specific Survival Comparisons
Death-Censored Pancreas Graft Failure
7 Participants
2 Participants
Event-Specific Survival Comparisons
Death-Uncensored Graft (Kidney&Pancreas) Survival
26 Participants
25 Participants
Event-Specific Survival Comparisons
Patient Death
16 Participants
15 Participants

SECONDARY outcome

Timeframe: at 1-5 years post-transplant

Population: Number analyzed here includes all patients alive with a functioning graft that had an available measurement taken at that time

Comparisons of renal function (eGFR, measured in mL/min/1.73 m\^2) at 12, 36, and 60 months post-transplant.

Outcome measures

Outcome measures
Measure
Tacrolimus Plus MMF Plus Steroids
n=84 Participants
This group of kidney-pancreas recipients was randomized to receive mycophenolate mofetil and tacrolimus after transplantation. Tacrolimus and mycophenolate mofetil: MMF 1 gm BID beginning 1st day postoperative day
Tacrolimus Plus Rapamycin Plus Steroids
n=86 Participants
Patients randomized to this arm received Sirolimus, after kidney-pancreas transplantation. Rapamycin: Rapamycin was initiated on day 1 postoperatively, 4mg/day;levels were maintained 5-8ng/ml. Those patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day. Rapamune and Tacrolimus: Sirolimus 2 mg/day beginning 1st postoperative day (trough target levels: 10-15ng/ml) Mycophenolate Mofetil: Patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day.
Overall Kidney Transplant Function at 12, 36, and 60 Months Post-transplant.
Mean eGFR at 12 months
71.2 mL/min/1.73m^2
Standard Error 2.4
67.2 mL/min/1.73m^2
Standard Error 2.0
Overall Kidney Transplant Function at 12, 36, and 60 Months Post-transplant.
Mean eGFR at 36 months
63.0 mL/min/1.73m^2
Standard Error 3.1
61.5 mL/min/1.73m^2
Standard Error 2.6
Overall Kidney Transplant Function at 12, 36, and 60 Months Post-transplant.
Mean eGFR at 60 months
56.5 mL/min/1.73m^2
Standard Error 4.1
61.9 mL/min/1.73m^2
Standard Error 3.8

SECONDARY outcome

Timeframe: at 1-5 years post-transplant

Population: Number analyzed here includes all patients alive with a functioning graft that had an available measurement taken at that time

Comparisons of pancreas function (C-peptide in ng/mL) at 12, 36, and 60 months post-transplant.

Outcome measures

Outcome measures
Measure
Tacrolimus Plus MMF Plus Steroids
n=86 Participants
This group of kidney-pancreas recipients was randomized to receive mycophenolate mofetil and tacrolimus after transplantation. Tacrolimus and mycophenolate mofetil: MMF 1 gm BID beginning 1st day postoperative day
Tacrolimus Plus Rapamycin Plus Steroids
n=84 Participants
Patients randomized to this arm received Sirolimus, after kidney-pancreas transplantation. Rapamycin: Rapamycin was initiated on day 1 postoperatively, 4mg/day;levels were maintained 5-8ng/ml. Those patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day. Rapamune and Tacrolimus: Sirolimus 2 mg/day beginning 1st postoperative day (trough target levels: 10-15ng/ml) Mycophenolate Mofetil: Patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day.
Overall Pancreas Transplant Function at 12, 36, and 60 Months Post-transplant.
Mean Log {C-peptide at 36 months}
0.990 ng/mL
Standard Error 0.08
0.986 ng/mL
Standard Error 0.08
Overall Pancreas Transplant Function at 12, 36, and 60 Months Post-transplant.
Mean Log {C-peptide at 12 months}
1.15 ng/mL
Standard Error 0.08
1.08 ng/mL
Standard Error 0.07
Overall Pancreas Transplant Function at 12, 36, and 60 Months Post-transplant.
Mean Log {C-peptide at 60 months}
1.17 ng/mL
Standard Error 0.10
1.22 ng/mL
Standard Error 0.10

Adverse Events

Tacrolimus Plus MMF Plus Steroids

Serious events: 40 serious events
Other events: 3 other events
Deaths: 16 deaths

Tacrolimus Plus Rapamycin Plus Steroids

Serious events: 38 serious events
Other events: 5 other events
Deaths: 15 deaths

Serious adverse events

Serious adverse events
Measure
Tacrolimus Plus MMF Plus Steroids
n=86 participants at risk
This group of kidney-pancreas recipients was randomized to receive mycophenolate mofetil and tacrolimus after transplantation. Tacrolimus and mycophenolate mofetil: MMF 1 gm BID beginning 1st day postoperative day
Tacrolimus Plus Rapamycin Plus Steroids
n=84 participants at risk
Patients randomized to this arm received Sirolimus, after kidney-pancreas transplantation. Rapamycin: Rapamycin was initiated on day 1 postoperatively, 4mg/day;levels were maintained 5-8ng/ml. Those patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day. Rapamune and Tacrolimus: Sirolimus 2 mg/day beginning 1st postoperative day (trough target levels: 10-15ng/ml) Mycophenolate Mofetil: Patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day.
Infections and infestations
Infection
36.0%
31/86 • Number of events 31 • during the first year post-transplant
Serious Adverse Events were defined as: 1) the occurrence of any infection that required hospitalization, and 2) a major cardiovascular event.
38.1%
32/84 • Number of events 32 • during the first year post-transplant
Serious Adverse Events were defined as: 1) the occurrence of any infection that required hospitalization, and 2) a major cardiovascular event.
Vascular disorders
Major Cardiovascular Event
17.4%
15/86 • Number of events 15 • during the first year post-transplant
Serious Adverse Events were defined as: 1) the occurrence of any infection that required hospitalization, and 2) a major cardiovascular event.
13.1%
11/84 • Number of events 11 • during the first year post-transplant
Serious Adverse Events were defined as: 1) the occurrence of any infection that required hospitalization, and 2) a major cardiovascular event.

Other adverse events

Other adverse events
Measure
Tacrolimus Plus MMF Plus Steroids
n=86 participants at risk
This group of kidney-pancreas recipients was randomized to receive mycophenolate mofetil and tacrolimus after transplantation. Tacrolimus and mycophenolate mofetil: MMF 1 gm BID beginning 1st day postoperative day
Tacrolimus Plus Rapamycin Plus Steroids
n=84 participants at risk
Patients randomized to this arm received Sirolimus, after kidney-pancreas transplantation. Rapamycin: Rapamycin was initiated on day 1 postoperatively, 4mg/day;levels were maintained 5-8ng/ml. Those patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day. Rapamune and Tacrolimus: Sirolimus 2 mg/day beginning 1st postoperative day (trough target levels: 10-15ng/ml) Mycophenolate Mofetil: Patients randomized to receive mycophenolate mofetil were given 1gm twice/day starting on the first post-operative day.
Endocrine disorders
New Onset Diabetes Mellitus Type 2 after Transplant (NODAT)
3.5%
3/86 • Number of events 3 • during the first year post-transplant
Serious Adverse Events were defined as: 1) the occurrence of any infection that required hospitalization, and 2) a major cardiovascular event.
6.0%
5/84 • Number of events 5 • during the first year post-transplant
Serious Adverse Events were defined as: 1) the occurrence of any infection that required hospitalization, and 2) a major cardiovascular event.

Additional Information

Dr. George W. Burke, III

University of Miami

Phone: 305-355-5111

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place