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Graft RejectionPhase 4NCT00369382

Study Of The Safety And Efficacy Of Conversion From A CNI To Sirolimus In Renally-Impaired Heart Transplant Recipients

A Phase 4 study testing cyclosporine or tacrolimus and sirolimus in people with Graft Rejection and Kidney Failure, run by Wyeth is now a wholly owned subsidiary of Pfizer at 23 sites in 7 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary purpose of this study is to determine whether converting from calcineurin inhibitor (CNI) therapy to sirolimus therapy will be more effective than continuing calcineurin inhibitor therapy with respect to renal function in cardiac transplant recipients with mild to moderate renal dysfunction. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Graft Rejection, Kidney Failure
What is being tested?
cyclosporine or tacrolimus and sirolimus
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
121 participants
Where
23 sitesin 7 countries
Study dates
Sep 2006to May 2010
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Cardiac transplant recipients age 18 years or older receiving cyclosporine or tacrolimus since the time of transplant.
  • 12 months after cardiac transplantation but less than 96 months post-transplantation.

Who cannot join

  • Multiple-organ transplant recipients (such as heart-lung, heart-kidney, or heart after kidney transplant recipients).
  • Prior or current use of sirolimus or everolimus unless administration was part of a "CNI holiday" lasting no more than 10 days.
  • History of acute rejection within the last 3 months, malignancy within the last 5 years (except for adequately treated basal cell or squamous cell carcinoma of the skin), and human immunodeficiency virus (HIV) patients.

Trial locations and contacts

23 sites in 7 countries.

23 sites in 7 countries

United States8 sites
  • Pfizer Investigational Site

    Houston, Texas, 77030

  • Pfizer Investigational Site

    New York, New York, 10027-6902

  • Pfizer Investigational Site

    Norfolk, Virginia, 23507

  • Pfizer Investigational Site

    Philadelphia, Pennsylvania, 19102

  • Pfizer Investigational Site

    Philadelphia, Pennsylvania, 19104

  • Pfizer Investigational Site

    Pittsburgh, Pennsylvania, 15213

  • Pfizer Investigational Site

    Rochester, Minnesota, 55905

  • Pfizer Investigational Site

    Tampa, Florida, 33606

Other trials in United States

Spain7 sites
  • Pfizer Investigational Site

    Barcelona, 08036

  • Pfizer Investigational Site

    L'Hospitalet de Llobregat, Barcelona, 08907

  • Pfizer Investigational Site

    La Coru?a, La Coru?a, 15001

  • Pfizer Investigational Site

    Madrid, Madrid, 28035

  • Pfizer Investigational Site

    Santander, Cantabria, 39008

  • Pfizer Investigational Site

    Seville, Sevilla, 41013

  • Pfizer Investigational Site

    Valencia, Valencia, 46009

Other trials in Spain

Canada3 sites
  • Pfizer Investigational Site

    Montreal, Quebec, H1T 1C8

  • Pfizer Investigational Site

    Québec, Quebec, G1V 4G5

  • Pfizer Investigational Site

    Sainte-Foy, Quebec, G1V 4G5

Other trials in Canada

New Zealand2 sites
  • Pfizer Investigational Site

    Auckland, New Zealand

  • Pfizer Investigational Site

    Epsom, Auckland, 1003

Other trials in New Zealand

Australia1 site
  • Pfizer Investigational Site

    Darlinghurst, New South Wales, 2010

Other trials in Australia

Austria1 site
  • Pfizer Investigational Site

    Vienna, A-1090

Other trials in Austria

Switzerland1 site
  • Pfizer Investigational Site

    Bern, 3010

Other trials in Switzerland

About this study

Official title: A Randomized Open-Label Study To Compare The Safety And Efficacy Of Conversion From A Calcineurin Inhibitor To Sirolimus Vs Continued Use Of A Calcineurin Inhibitor In Heart Transplant Recipients With Mild-Moderate Impaired Renal Function

The primary purpose of this study is to determine whether converting from calcineurin inhibitor (CNI) therapy to sirolimus therapy will be more effective than continuing calcineurin inhibitor therapy with respect to renal function in cardiac transplant recipients with mild to moderate renal dysfunction.

Being tested
cyclosporine or tacrolimus, sirolimus
Keywords
Heart Transplant, Kidney Failure
Medical subject headings
Renal Insufficiency

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • cyclosporine or tacrolimusDrug

    Also called Brand names for cyclosporine are Neoral®, Sandimmune®, and Gengraf®; brand names for tacrolimus are Prograf® and Adagraf™.

    Cyclosporine and tacrolimus are provided by the sites and dosed to achieve a target trough level determined by the investigator; therefore, form, dosage, and frequency are site and patient specific. Duration should be 52 weeks on-therapy.

  • sirolimusDrug

    Also called Rapamune®

    Oral (1 and 2 mg) tablets, dosing should be once daily to achieve a target trough level of 7- 15 ng/mL. Duration should be 52 weeks on-therapy.

Study groups in NCT00369382
Study groupRoleWhat they receive
1Active comparatorGroup 1: Continuation of CNI regimen
Receives: Drug: cyclosporine or tacrolimus
2ExperimentalGroup 2: (CNI-Free) Conversion to SRL-based regimen
Receives: Drug: sirolimus

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change From Baseline in Calculated Creatinine Clearance (Cockcroft-Gault Equation) at 52 Weeks Post-randomization

    Creatinine Clearance (CC) calculated using Cockcroft-Gault equation, adjusted for body surface area. Calculated CC: method to approximate kidney function. It measures rate creatinine (substance formed from metabolism of creatine) is cleared from blood by kidneys. Normal adult creatinine clearance is greater than or equal to (≥) 90 milliliters per minute per 1.73 meters squared (mL/min/1.73m^2). Change from baseline=CC at Week 52 minus CC at baseline where higher scores represented improved renal function; Least squares mean adjusted for baseline calculated creatinine clearance and center.

    Measured: Baseline and Week 52

  2. Calculated Creatinine Clearance (Cockcroft-Gault Equation) at Baseline

    Creatinine clearance at baseline calculated using Cockcroft-Gault equation and adjusted for body surface area. Calculated CC: method to approximate kidney function. It measures rate creatinine (substance formed from metabolism of creatine) is cleared from blood by kidneys. Normal adult creatinine clearance is ≥ 90 mL/min/1.73m^2.

    Measured: Baseline

Secondary outcomes (12)
  1. Change From Baseline in Calculated Creatinine Clearance (Cockcroft-Gault Equation) at 4, 16, 24, 32, and 40 Weeks Post-randomization

    Creatinine Clearance (CC) calculated using Cockcroft-Gault equation, adjusted for body surface area. Calculated CC: method to approximate kidney function. It measures rate creatinine (substance formed from metabolism of creatine) is cleared from blood by kidneys. Normal adult creatinine clearance is ≥ 90 mL/min/1.73m^2. Change from baseline=CC at Week X minus CC at baseline where higher scores represented improved renal function; Least squares mean adjusted for baseline calculated creatinine clearance and center.

    Measured: Baseline and Weeks 4, 16, 24, 32, and 40

  2. Change From Baseline in Calculated Creatinine Clearance (Modification of Diet in Renal Disease [MDRD] Equation) at 4, 16, 24, 32, 40 and 52 Weeks Post-randomization

    Creatinine clearance calculated using MDRD equation. Normal adult creatinine clearance is ≥ 90 mL/min/1.73m^2. Change from baseline=CC at Week X minus CC at baseline where higher scores represented improved renal function. Least squares mean adjusted for baseline calculated creatinine clearance (MDRD) and center.

    Measured: Baseline and Weeks 4, 16, 24, 32, 40 and 52

  3. Calculated Creatinine Clearance (Modification of Diet in Renal Disease [MDRD] Equation) at Baseline

    Creatinine clearance calculated using MDRD equation. Calculated CC: method to approximate kidney function. It measures rate creatinine (substance formed from metabolism of creatine) is cleared from blood by kidneys. Normal adult creatinine clearance is ≥ 90 mL/min/1.73m^2.

    Measured: Baseline

  4. Change From Baseline in Serum Creatinine Level at 4, 16, 24, 32, 40, and 52 Weeks Post-randomization

    Serum creatinine is an indicator of kidney function. Creatinine is a substance formed from the metabolism of creatine, commonly found in blood, urine, and muscle tissue. It is removed from the blood by the kidneys and excreted in urine. Normal adult blood levels of creatinine=45 to 90 micromoles per liter (mcmol/L) for females, 60 to 110 mcmol/L for males, however normal values are age-dependent. Change from baseline=creatinine level at Week x minus baseline level where higher scores represented decreased kidney function. Least squares mean adjusted for treatment group and center.

    Measured: Baseline and Weeks 4, 16, 24, 32, 40, and 52

  5. Serum Creatinine Level at Baseline

    Serum creatinine is an indicator of kidney function. Creatinine is a substance formed from the metabolism of creatine, commonly found in blood, urine, and muscle tissue. It is removed from the blood by the kidneys and excreted in urine.

    Measured: Baseline

  6. Annual Change in Calculated Creatinine Clearance (Cockcroft-Gault Equation)

    The change in creatinine clearance over time assessed using the random coefficient slope of the regression line with creatinine clearance as the dependent variable and study day as the independent variable. Time points calculated as study days, relative to time of randomization of study medication. Observed data multiplied by a scale factor of 365 to express an annual change.

    Measured: Baseline to discontinuation (up to Week 52)

  7. Overall Survival (OS)

    Survival time from the start of study treatment to date of death due to any cause, censored at the last visit if no death. Death was determined from the Death report. The distribution of time to death was to be estimated using Kaplan-Meier method and compared between treatment groups with a proportional hazard model. The number and percent of survival at 6 and 12 months were to be reported.

    Measured: Baseline until death (up to Week 56)

  8. Number of Participants With Acute Rejection

    Based on International Society for Heart and Lung Transplantation [ISHLT] 1990 criteria: rejections Grade 3A or higher, rejection accompanied by hemodynamic compromise or requiring treatment. Grade 3A or higher included: multifocal aggressive infiltrates and/or myocyte damage, diffuse inflammatory process with necrosis, diffuse aggressive polymorphus with necrosis, increased infiltrates, and changes in edema, hemorrhage, or vasculitis. Biopsies performed for clinically suspected rejection (for cause), site's standard of care (site protocol biopsy), or protocol mandated.

    Measured: Baseline to Week 52

  9. Number of Participants With Biopsy-confirmed Acute Rejection by Severity

    Severity of acute rejection summarized using revised 2005 ISHLT criteria. Grade 0R: no rejection, Grade 1R: Focal (perivascular or interstitial) infiltrate without necrosis, diffuse but sparse infiltrate without necrosis, or one focus only with aggressive infiltration and/or focal myocyte damage, Grade 2R:Multifocal aggressive infiltrates and/or myocyte damage, and Grade 3R:Diffuse inflammatory process with necrosis, or diffuse aggressive polymorphous with necrosis, increased infiltrate, changes in edema, hemorrhage and vasculitis.

    Measured: Baseline to Week 52

  10. Time to First Acute Rejection

    Time from baseline to first biopsy-confirmed acute rejection defined as any of the following (based on ISHLT 1990 criteria): all rejections Grade 3A or higher, any rejection accompanied by hemodynamic compromise, or any rejection requiring treatment. ISHLT Grade 3A or higher included: Multifocal aggressive infiltrates and/or myocyte damage, diffuse inflammatory process with necrosis, diffuse aggressive polymorphus with necrosis, increased infiltrates, and changes in edema, hemorrhage, or vasculitis.

    Measured: Baseline to Week 52

  11. Number of Participants Requiring Antibody Use in Treatment of Acute Rejection

    Number of participants requiring antilymphocyte antibody therapy with suspected or biopsy-proven, steroid-resistant, acute rejection with or without hemodynamic compromise. Acute rejection based on ISHLT 1990 criteria: all rejections Grade 3A or higher, any rejection accompanied by hemodynamic compromise, or any rejection requiring treatment. ISHLT Grade 3A or higher included: Multifocal aggressive infiltrates and/or myocyte damage, diffuse inflammatory process with necrosis, diffuse aggressive polymorphus with necrosis, increased infiltrates, and changes in edema, hemorrhage, or vasculitis.

    Measured: Baseline to Week 52

  12. Number of Participants in Sirolimus Treatment Group Requiring Conversion Back to CNI Therapy

    Measured: Baseline up to Week 52

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Aug 2006 (estimated)
  2. Study startSep 2006
  3. Primary completionApr 2010
  4. Study completionMay 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
121 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00369382
Sponsor's protocol ID
0468E7-408
Other IDs
B1741006
Status last verified
May 2011
First submitted
25 Aug 2006
Last updated
30 May 2011
Data monitoring committee
Yes

Publications

  • Zuckermann A, Keogh A, Crespo-Leiro MG, Mancini D, Vilchez FG, Almenar L, Brozena S, Eisen H, Tai SS, Kushwaha S. Randomized controlled trial of sirolimus conversion in cardiac transplant recipients with renal insufficiency. Am J Transplant. 2012 Sep;12(9):2487-97. doi: 10.1111/j.1600-6143.2012.04131.x. Epub 2012 Jul 9.

    PubMed 22776430

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing cyclosporine or tacrolimus and sirolimus in people with Graft Rejection and Kidney Failure, run by Wyeth is now a wholly owned subsidiary of Pfizer at 23 sites in 7 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 May 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 23 sites in United States, Spain, Canada, New Zealand, Australia and 2 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 23 May 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change From Baseline in Calculated Creatinine Clearance (Cockcroft-Gault Equation) at 52 Weeks Post-randomization (time frame: Baseline and Week 52). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00369382, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 May 2011.

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