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TerminatedNCT00346151BESTTUpdated Apr 21, 2017Results posted

Belatacept to Prevent Organ Rejection in Kidney Transplant Patients

A Phase 2 interventional study of Belatacept and Sirolimus in Renal Transplant, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Terminated at 2 sites in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2017-04-21.

Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Phase 2, Interventional, and Treatment

Why this study was terminated
Stopping rule-acute rejection threshold-was met based on local biopsy results
Phase
Phase 2
Study type
Interventional
Enrollment
5
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Belatacept is an experimental medication shown in clinical trials to have immune system suppression properties in people who have had renal (e.g., kidney) transplants. This study will determine whether a combination of anti-rejection drugs, including belatacept, can prevent the rejection of a first-time, non-human leukocyte antigen (HLA) identical renal transplant and allow patients to be safely withdrawn from anti-rejection therapy one year post-transplant.

Read the detailed description

Drugs that suppress the immune system have contributed to increased success of transplantation; however, to prevent organ rejection, transplant recipients need to take immunosuppressive drugs for the rest of their lives. These drugs make patients more susceptible to infection and certain kinds of cancer. Belatacept is an experimental medication that specifically targets immune reactions against transplanted organs and has been shown to be effective in preventing kidney transplant rejection in previous clinical trials. Both thymoglobulin, an antibody, and sirolimus, an anti-rejection drug, prevent rejection by lowering the response of the immune system to the transplanted organ. This study will evaluate whether belatacept, along with thymoglobulin and sirolimus, is safe in kidney transplant patients. The study will also evaluate this regimen's potential to allow tapering and eventual discontinuation of all immunosuppressive drugs.

This study will last up to 4 years. At the time of transplant, participants will begin an immunosuppressive treatment regimen consisting of thymoglobulin, sirolimus, and belatacept. Participants will receive infusions of thymoglobulin on days 1 through 4, and a combination of oral sirolimus (daily) and belatacept infusions at day 5, then weeks 2, 4, 8, and monthly for at least 2 years. Dose reduction of belatacept will occur at 12 weeks post-transplant. At Year 2, eligible participants may choose to begin drug withdrawal or continue study therapy through the end of the study. Study visits will occur weekly for the first two months, then monthly. These visits will include belatacept treatment, general medical assessments, blood and urine collection, and other assessments to determine overall health of the recipient's immune system and kidney transplant and to better understand the way the immune system works in the acceptance or rejection of organ transplants.

*** IMPORTANT NOTICE: *** The National Institute of Allergy and Infectious Diseases and the Immune Tolerance Network do not recommend the discontinuation of immunosuppressive therapy for recipients of cell, organ, or tissue transplants outside of physician-directed, controlled clinical studies. Discontinuation of prescribed immunosuppressive therapy can result in serious health consequences and should only be performed in certain rare circumstances, upon the recommendation and with the guidance of your health care provider.

02

Conditions studied

  • Renal Transplant

Keywords

  • renal transplantation
  • kidney transplantation
  • renal allograft recipient
  • anti-rejection drugs
  • immunosuppression protocol
  • immunosuppression withdrawal
03

In context

Lead sponsor

National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,445 studies on the registry; 182 are open to participants now.

Of its 402 completed or terminated interventional studies of FDA-regulated products, 300 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Receiving first renal (e.g., kidney) transplant
  • Transplant is from a non-HLA-identical living donor
  • Willing to use acceptable forms of contraception

Exclusion criteria

Exclusion Criteria:

  • Positive for anti-human globulin (AHG) or T-cell cross-match with the donor
  • Receiving multiple-organ transplant
  • History of cancer within the 5 years prior to study entry. Patients who have certain nonmelanoma skin cancers are not excluded
  • Human immunodeficiency virus (HIV) infected
  • Hepatitis B (HBV) or C (HCV) virus infected
  • Other active infections
  • Active tuberculosis (TB) infection within the 3 years prior to study entry
  • Pregnancy or breastfeeding
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
5 participants (actual)

Study arms

  • Experimental
    Belatacept

    Immunosuppressive protocol consisting of belatacept, glucocorticoids, antithymocyte globulin (ATG), and sirolimus.

    Drug: Belatacept · Drug: Sirolimus · Drug: Anti-thymocyte globulin · Drug: methylprednisolone

Interventions

  • 10 mg/kg given intravenously (IV) on transplant (day 1), day 5, and at weeks 2, 4, 8 and 12, then 5 mg/kg IV every 4 weeks

    Also known as: LEA29Y, Nulojix

  • 4 mg/day (oral tablet) at transplant (day 1), then dose adjusted to maintain serum trough level of 8-12 ng/mL for at least 1 year

    Also known as: Rapamycin, Rapamune

  • 1.5 mg/kg given IV daily on days 1 through 4. Subjects are premedicated with glucocorticoids, acetaminophen 650 mg by mouth, and diphenhydramine 25- 50 mg by mouth prior to each dose.

    Also known as: ATG, anti-thymocyte immunoglobulin, Thymoglobulin®

  • 500 mg given IV at transplant (day 1), then given 250 mg IV on day 2 and given 0.5 mg/kg IV or prednisone 0.5 mg/kg given by mouth on days 3 and 4

    Also known as: Medrol, glucocorticoid

06

What researchers measure

Primary outcomes

  1. Acute Rejection at 6-Months

    Cumulative incidence of acute rejection\[1\] at 6 months post-transplant based on local pathology biopsy reads 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

    Time frame: 6 months post-transplant

Secondary outcomes

  1. Participant Survival at 12 Months Post-Transplant

    Time frame: 12 months post-transplant

  2. Acute Rejection at 12-Months

    Incidence of acute rejection\[1\] at 12 months post-transplant 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

    Time frame: 12 months post-transplant

  3. Tolerance Induction

    Time from transplantation to initiation of sirolimus withdrawal.

    Time frame: 48 months

  4. Renal Function as Measured by Glomerular Filtration Rate (GFR) at 24 Weeks

    GFR utilizing clearance of iothalamate. GFR is an index of level of kidney function. A higher value means better kidney function.

    Time frame: 24 weeks post-transplant

  5. Graft Survival at 12 Months Post-transplant

    Time frame: 12 months post-transplant

  6. Time From Transplant to Acute Rejection

    Time (days) from transplant to occurrence of acute rejection\[1\] 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

    Time frame: Transplantation until rejection occurs (participants followed up to four years post-transplantation)

  7. Proportion of Participants Requiring Antilymphocyte Therapy for Acute Rejection

    Proportion of participants who experienced acute rejection\[1\] requiring antilymphocyte therapy 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

    Time frame: Participants followed from transplantation until completion of study (up to four years post-transplantation)

  8. Proportion of Participants With Post-transplant Infections

    Proportion of participants who experienced infections post-transplant. Participants were checked for any type of opportunistic infection at all study visits post-transplantation (up to 4 years post-transplantation)

    Time frame: Participants followed from transplantation until completion of study (up to four years post-transplantation)

  9. Proportion of Participants With Wound Complications

    Time frame: Start of study to end of study

  10. Proportion of Participants With Malignancies

    Time frame: Participants followed from transplantation until completion of study (up to four years post-transplantation)

  11. Proportion of Participants With a Sirolimus Associated Adverse Event

    Time frame: Participants followed from transplantation until completion of study (up to four years post-transplantation)

  12. Proportion of Participants With Chronic Allograft Nephropathy

    Time frame: Participants followed from transplantation until completion of study (up to four years post-transplantation)

  13. Proportion of Participants With Delayed Graft Function

    Time frame: Participants followed from transplantation until completion of study (up to four years post-transplantation)

  14. Proportion of Participants With Post-transplant Diabetes Mellitus

    Time frame: Participants followed from transplantation until completion of study (up to four years post-transplantation)

07

Results

Posted Nov 7, 2011
Limitations and caveats
The trial was stopped early due to meeting an acute rejection threshold of three acute rejections based on local pathology reads in the first five participants enrolled.

Participant flow

Two centers in the United States enrolled five recipients of non-human leukocyte antigen (HLA)-identical living-donor-related renal transplants between January 2007 and January 2009.

Participant flow — Overall Study
MilestoneBelatacept
Started5
Completed2
Not completed3
Withdrew: Withdrawal by subject3

Outcome measures

PrimaryAcute Rejection at 6-Months

Cumulative incidence of acute rejection\[1\] at 6 months post-transplant based on local pathology biopsy reads 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

Time frame:
6 months post-transplant
Reported as:
Number · Participants
Acute Rejection at 6-Months
ParticipantsImmunosuppression Withdrawal
Acute Rejection at 6-Months3
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 60 · 95% CI 15 to 95
SecondaryParticipant Survival at 12 Months Post-Transplant
Time frame:
12 months post-transplant
Reported as:
Number · Participants
Participant Survival at 12 Months Post-Transplant
ParticipantsImmunosuppression Withdrawal
Participant Survival at 12 Months Post-Transplant4
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 100 · 95% CI 40 to 100
SecondaryAcute Rejection at 12-Months

Incidence of acute rejection\[1\] at 12 months post-transplant 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

Time frame:
12 months post-transplant
Reported as:
Number · Participants
Acute Rejection at 12-Months
ParticipantsImmunosuppression Withdrawal
Acute Rejection at 12-Months4
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 80 · 95% CI 28 to 99
SecondaryTolerance Induction

Time from transplantation to initiation of sirolimus withdrawal.

Time frame:
48 months
Reported as:
Number · Days
Tolerance Induction
DaysImmunosuppression Withdrawal
Tolerance Induction391
SecondaryRenal Function as Measured by Glomerular Filtration Rate (GFR) at 24 Weeks

GFR utilizing clearance of iothalamate. GFR is an index of level of kidney function. A higher value means better kidney function.

Time frame:
24 weeks post-transplant
Reported as:
Mean · mL/min/1.73m^2
Renal Function as Measured by Glomerular Filtration Rate (GFR) at 24 Weeks
mL/min/1.73m^2Immunosuppression Withdrawal
Renal Function as Measured by Glomerular Filtration Rate (GFR) at 24 Weeks62.0 ± 8.5
SecondaryGraft Survival at 12 Months Post-transplant
Time frame:
12 months post-transplant
Reported as:
Number · Participants
Graft Survival at 12 Months Post-transplant
ParticipantsImmunosuppression Withdrawal
Graft Survival at 12 Months Post-transplant4
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 100 · 95% CI 40 to 100
SecondaryTime From Transplant to Acute Rejection

Time (days) from transplant to occurrence of acute rejection\[1\] 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

Time frame:
Transplantation until rejection occurs (participants followed up to four years post-transplantation)
Reported as:
Median · Days
Time From Transplant to Acute Rejection
DaysImmunosuppression Withdrawal
Time From Transplant to Acute Rejection15 ± 95.4
SecondaryProportion of Participants Requiring Antilymphocyte Therapy for Acute Rejection

Proportion of participants who experienced acute rejection\[1\] requiring antilymphocyte therapy 1. Diagnosis of acute rejection was made by renal (kidney) biopsy using the Banff 97 criteria. The Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. Acute rejection is defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater\[2\] 2. Reference: Racusen LC, Solez K, Colvin RB et al,The Banff 97 working classification of renal allograft pathology. Kidney Int,55: 713-723, 1999

Time frame:
Participants followed from transplantation until completion of study (up to four years post-transplantation)
Reported as:
Number · Participants
Proportion of Participants Requiring Antilymphocyte Therapy for Acute Rejection
ParticipantsImmunosuppression Withdrawal
Proportion of Participants Requiring Antilymphocyte Therapy for Acute Rejection0
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 0 · 95% CI 0 to 52.2
SecondaryProportion of Participants With Post-transplant Infections

Proportion of participants who experienced infections post-transplant. Participants were checked for any type of opportunistic infection at all study visits post-transplantation (up to 4 years post-transplantation)

Time frame:
Participants followed from transplantation until completion of study (up to four years post-transplantation)
Reported as:
Number · Participants
Proportion of Participants With Post-transplant Infections
ParticipantsImmunosuppression Withdrawal
Proportion of Participants With Post-transplant Infections4
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 80 · 95% CI 28 to 99
SecondaryProportion of Participants With Wound Complications
Time frame:
Start of study to end of study
Reported as:
Number · Participants
Proportion of Participants With Wound Complications
ParticipantsImmunosuppression Withdrawal
Proportion of Participants With Wound Complications0
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 0 · 95% CI 0 to 52.2
SecondaryProportion of Participants With Malignancies
Time frame:
Participants followed from transplantation until completion of study (up to four years post-transplantation)
Reported as:
Number · Participants
Proportion of Participants With Malignancies
ParticipantsImmunosuppression Withdrawal
Proportion of Participants With Malignancies0
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 0 · 95% CI 0 to 52.2
SecondaryProportion of Participants With a Sirolimus Associated Adverse Event
Time frame:
Participants followed from transplantation until completion of study (up to four years post-transplantation)
Reported as:
Number · Participants
Proportion of Participants With a Sirolimus Associated Adverse Event
ParticipantsImmunosuppression Withdrawal
Proportion of Participants With a Sirolimus Associated Adverse Event5
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 100 · 95% CI 47.8 to 100
SecondaryProportion of Participants With Chronic Allograft Nephropathy
Time frame:
Participants followed from transplantation until completion of study (up to four years post-transplantation)
Reported as:
Number · Participants
Proportion of Participants With Chronic Allograft Nephropathy
ParticipantsImmunosuppression Withdrawal
Proportion of Participants With Chronic Allograft Nephropathy0
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 0 · 95% CI 0 to 52.2
SecondaryProportion of Participants With Delayed Graft Function
Time frame:
Participants followed from transplantation until completion of study (up to four years post-transplantation)
Reported as:
Number · Participants
Proportion of Participants With Delayed Graft Function
ParticipantsImmunosuppression Withdrawal
Proportion of Participants With Delayed Graft Function0
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 0 · 95% CI 0 to 52.2
SecondaryProportion of Participants With Post-transplant Diabetes Mellitus
Time frame:
Participants followed from transplantation until completion of study (up to four years post-transplantation)
Reported as:
Number · Participants
Proportion of Participants With Post-transplant Diabetes Mellitus
ParticipantsImmunosuppression Withdrawal
Proportion of Participants With Post-transplant Diabetes Mellitus1
Statistical analysis
  • Immunosuppression Withdrawal · 95% exact binomial CI of proportion · Incidence rate: 20 · 95% CI 0.5 to 71.6

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Immunosuppression Withdrawal—4/5 (80%)5/5 (100%)
Most frequent serious events
Most frequent serious events
EventImmunosuppression Withdrawal
Kidney transplant rejectionImmune system disorders4/5
LymphoceleBlood and lymphatic system disorders1/5
Lung infiltrationRespiratory, thoracic and mediastinal disorders1/5
Most frequent other events
Showing 10 of 65
Most frequent other events
EventImmunosuppression Withdrawal
DiarrhoeaGastrointestinal disorders4/5
NauseaGastrointestinal disorders4/5
AnaemiaBlood and lymphatic system disorders3/5
OedemaGeneral disorders3/5
HypomagnesaemiaMetabolism and nutrition disorders3/5
LeukopeniaBlood and lymphatic system disorders2/5
ConstipationGastrointestinal disorders2/5
Mouth ulcerationGastrointestinal disorders2/5
PyrexiaGeneral disorders2/5
BK virus infectionInfections and infestations2/5

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Immunosuppression Withdrawal
<=18 years0
Between 18 and 65 years5
>=65 years0
Age, Continuous
Age, Continuous(years)Immunosuppression Withdrawal
Mean50.4 ± 5.9
Sex: Female, Male
Sex: Female, Male(Participants)Immunosuppression Withdrawal
Female3
Male2
Region of Enrollment
Region of Enrollment(participants)Immunosuppression Withdrawal
United States5
08

Study locations

2 sites
  • University of California, San Francisco
    San Francisco, California 94143, United States
  • Emory University
    Atlanta, Georgia 30322, United States
09

References and documents

Publications

  • Vincenti F, Larsen C, Durrbach A, Wekerle T, Nashan B, Blancho G, Lang P, Grinyo J, Halloran PF, Solez K, Hagerty D, Levy E, Zhou W, Natarajan K, Charpentier B; Belatacept Study Group. Costimulation blockade with belatacept in renal transplantation. N Engl J Med. 2005 Aug 25;353(8):770-81. doi: 10.1056/NEJMoa050085. PubMed 16120857 ↗

Individual participant data

Plan to share: Yes — Data access is provided to the public in Participant level data and additional relevant materials are available to the public in : 1.) the Immunology Database and Analysis Portal (ImmPort), a long-term archive of clinical and mechanistic data from DAIT-funded grants and contracts that also provides data analysis tools available to researchers; and 2.) TrialShare, the Immune Tolerance Network (ITN) Clinical Trials Research Portal that makes data from the consortium's clinical trials publicly available.

10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Dec 2006, a primary completion of Feb 2010 and a completion of Feb 2010. It does not say whether these dates are actual or estimated.

Results were first posted in Nov 2011, 1 year 9 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 27, 2006
First posted
Jun 29, 2006
Start
Dec 2006
Primary completionActual
Feb 2010
CompletionActual
Feb 2010
Results first posted
Nov 7, 2011
Last update
Apr 21, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 21, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00346151
Collaborators
Immune Tolerance Network (ITN)
Responsible party
Sponsor
First posted
Jun 29, 2006
Start date
Dec 2006
Primary completion
Feb 2010
Completion
Feb 2010
Results posted
Nov 7, 2011
Last update
Apr 21, 2017

Study contacts

Flavio Vincenti, MD
principal investigator · University of California, San Francisco
Christian Larsen, MD
principal investigator · Emory University

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Abatacept · Sirolimus

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