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Steroid Withdrawal in Pediatric Kidney Transplant Recipients

keskiviikko 19. lokakuuta 2016 päivittänyt: National Institute of Allergy and Infectious Diseases (NIAID)

A Double-Blind Randomized Trial of Steroid Withdrawal in Sirolimus- and Cyclosporine-Treated Primary Transplant Recipients

The purpose of this study is to examine the effects of withdrawing steroids on graft rejection and kidney functions in kidney transplant recipients between the ages of 0 and 20 years (prior to their 21st birthday).

Graft survival has improved in recent years in children with kidney transplants. One bad side effect of steroid maintenance therapy has been growth retardation. Doctors believe steroids might be safely withdrawn in patients that are receiving other maintenance therapies. If steroids are removed, children might catch up in their growth and also might have fewer side effects of other kinds. This study evaluates whether steroid therapy can be withdrawn in a way that does not increase graft rejection.

Tutkimuksen yleiskatsaus

Yksityiskohtainen kuvaus

Children receiving kidney (renal) transplantation face distressing issues in post-transplantation including but not limited to growth retardation directly attributable to corticosteroids (steroids). It is hypothesized that robust immunosuppression with sirolimus and calcineurin inhibitors (cyclosporine or tacrolimus) in conjunction with induction therapy should enable successful steroid withdrawal. A steroid-free environment could lessen side effects by enabling a child to achieve catch-up growth, reducing the need for anti-hypertensive therapy, and reducing the risk of cardiovascular disease. This trial tests the objective of providing a steroid-free state without incurring the risk of increased incidence of acute transplant rejections.

Patients are enrolled prior to kidney transplantation and receive standard evaluations. Patients receive induction therapy with basiliximab preoperatively and on Day 4 after surgery. Immunosuppressive therapy begins with sirolimus and either cyclosporine or tacrolimus on Day 1 following surgery, and with corticosteroids the day of surgery. Infection prophylaxis with Bactrim is begun on Day 1 after surgery and center-specific anti-cytomegalovirus (CMV) therapy is given for all recipients of a CMV positive kidney. At 6 months post-transplantation, all patients who have not had an episode of acute rejection undergo a renal graft biopsy. Patients who are confirmed to be free of subclinical rejection are randomized to either undergo complete steroid withdrawal or continue maintenance on daily steroids. Patients receive either steroids or placebo, while continuing other immunosuppressive medications. Patients are segregated into weight groups for steroid withdrawal that occurs over months 7 to 13. Any acute rejection event during withdrawal is confirmed by renal biopsy and managed with methylprednisolone treatment. Patients are followed for 3 years post-transplantation for analysis of growth rate, blood pressure, lipid profile and renal function as measured by serum creatinine and calculated creatinine clearances. Post-transplantation clinic visits are weekly for the first 2 months, every 2 weeks until 13 months, weekly during Month 13, every 2 weeks through Month 18, and monthly until the study ends.

Patients who exhibit evidence of acute or subclinical rejection do not continue the steroid withdrawal trial and care is managed by their pediatric renal transplant center physicians.

Opintotyyppi

Interventio

Ilmoittautuminen (Todellinen)

274

Vaihe

  • Vaihe 2

Yhteystiedot ja paikat

Tässä osiossa on tutkimuksen suorittajien yhteystiedot ja tiedot siitä, missä tämä tutkimus suoritetaan.

Opiskelupaikat

    • Distrito Federal
      • Mexico City, Distrito Federal, Meksiko, 06720
        • Hospital Infantil de Mexico
    • Alabama
      • Birmingham, Alabama, Yhdysvallat, 35233
        • University of Alabama
    • California
      • San Diego, California, Yhdysvallat, 92103
        • UCSD Medical Center
    • Colorado
      • Aurora, Colorado, Yhdysvallat, 80045
        • Denver Children's Hospital
    • Florida
      • Jacksonville, Florida, Yhdysvallat, 32209
        • University of Florida Health Science Center
    • Georgia
      • Atlanta, Georgia, Yhdysvallat, 30322
        • Emory Children's Center
    • Louisiana
      • New Orleans, Louisiana, Yhdysvallat, 70112
        • Tulane University Medical Center
    • Maryland
      • Baltimore, Maryland, Yhdysvallat, 21201
        • University of Maryland Medical Center
    • Massachusetts
      • Boston, Massachusetts, Yhdysvallat, 02115
        • Children's Hospital of Boston
    • New Mexico
      • Albuquerque, New Mexico, Yhdysvallat, 87131
        • University of New Mexico Health Science Center
    • New York
      • Buffalo, New York, Yhdysvallat, 14222
        • The Children's Hospital of Buffalo
      • Valhalla, New York, Yhdysvallat, 10595
        • Westchester Medical Center
    • Ohio
      • Cleveland, Ohio, Yhdysvallat, 44106
        • Rainbow Babies and Childrens Hospital
      • Cleveland, Ohio, Yhdysvallat, 44106
        • University Hospitals of Cleveland
    • Pennsylvania
      • Hershey, Pennsylvania, Yhdysvallat, 17033
        • Penn State College of Medicine
    • Tennessee
      • Memphis, Tennessee, Yhdysvallat, 38103
        • LeBonheur Children's Medical Center
    • Texas
      • San Antonio, Texas, Yhdysvallat, 78207
        • Christopher Goldsbury Center
    • Washington
      • Seattle, Washington, Yhdysvallat, 98105
        • Children's Hospital and Regional Medical Center
    • Wisconsin
      • Madison, Wisconsin, Yhdysvallat, 53705
        • University of Wisconsin

Osallistumiskriteerit

Tutkijat etsivät ihmisiä, jotka sopivat tiettyyn kuvaukseen, jota kutsutaan kelpoisuuskriteereiksi. Joitakin esimerkkejä näistä kriteereistä ovat henkilön yleinen terveydentila tai aiemmat hoidot.

Kelpoisuusvaatimukset

Opintokelpoiset iät

1 päivä - 20 vuotta (Lapsi, Aikuinen)

Hyväksyy terveitä vapaaehtoisia

Ei

Sukupuolet, jotka voivat opiskella

Kaikki

Kuvaus

Inclusion Criteria:

Patients may be eligible for this study if they:

  • Are between the ages of 0 and 20 years (prior to their 21st birthday)
  • Are receiving their first living related (e.g.,kidney from a relative or unrelated donor) or cadaver donor transplant
  • Are willing to practice an acceptable method of birth control during the study, if women able to have children

Exclusion Criteria:

Patients will not be eligible for this study if they:

  • Have received multiple organs
  • Have received 2 or more transplants
  • Have an active infection (including tuberculosis), or cancer
  • Have used an experimental agent within 4 weeks of transplantation

Opintosuunnitelma

Tässä osiossa on tietoja tutkimussuunnitelmasta, mukaan lukien kuinka tutkimus on suunniteltu ja mitä tutkimuksella mitataan.

Miten tutkimus on suunniteltu?

Suunnittelun yksityiskohdat

  • Ensisijainen käyttötarkoitus: Hoito
  • Jako: Satunnaistettu
  • Inventiomalli: Rinnakkaistehtävä
  • Naamiointi: Kaksinkertainen

Aseet ja interventiot

Osallistujaryhmä / Arm
Interventio / Hoito
Kokeellinen: Corticosteroid (steroid) withdrawal
All enrolled subjects who have not experienced an episode of acute rejection or other event resulting in removal from the study in the first 6 months after transplantation will undergo a protocol-driven biopsy at 6 months. Subjects with no clinical or histologic evidence of rejection will be eligible to be randomized and treated in a double-blinded (e.g., masked-neither subject nor health care providers will know treatment being received) fashion while continuing other immunosuppressive medications. Subjects in this arm will undergo complete steroid withdrawal by the end of 12 months post-transplant.
Administered as a bolus intravenous injection. The first dose is given pre-operatively, the second dose is given on post-transplant day four. Dosage is determined by individual weight.
Muut nimet:
  • Simulect
  • Anti-CD25 monoclonal antibody, chimeric
Participants receiving cyclosporine microemulsion formula (in lieu of tacrolimus) will have the dose adjusted to maintain a whole blood trough Abbott TDx assay monoclonal level of 175-400 ng/mL (or an equivalent high pressure liquid chromatography (HPLC) level) for the first 2 weeks after transplant. The dose will subsequently be tapered to maintain a trough level of 175-300 ng/mL from week 3 to month 3, and 50-250 ng/mL from month 3 through the end of the study at month 36 (year 3).
Muut nimet:
  • CsA
Participants receiving tacrolimus (in lieu of Cyclosporine) will have the dose adjusted to maintain a whole blood trough level between 10 and 15 ng/mL for the first 4weeks after transplant. Trough levels will be maintained between 5 and 10 ng/mL thereafter throughout the duration of the study.
Participants take daily (orally, either as tablets or as liquid) starting on postoperative day 1 at a dose of 6 mg/m2 and will be adjusted to maintain a trough level of 10-20 ng/mL throughout the study.
Administered at 10 mg/kg intravenously perioperatively and on postoperative day 1.
Administered orally beginning on Post-Op Day 2 and maintained for all participants until day 180. Randomization will determine whether patients will maintain this treatment following day 180.
All subjects will receive TMP SMX (Bactrim), pneumocystis jiroveci (carinii) prophylaxis, beginning on postoperative day 1 and continuing for 6 months following transplant. Dosage: 10 mg/kg taken orally three times weekly (maximum dose 160 mg).
Muut nimet:
  • trimetopriimi/sulfametoksatsoli
  • TMP SMX
Active Comparator: Control Treatment
All enrolled subjects who have not experienced an episode of acute rejection or other event resulting in removal from the study in the first 6 months after transplantation will undergo a protocol-driven biopsy at 6 months. Subjects with no clinical or histologic evidence of rejection will be eligible to be randomized and treated in a double-blinded (e.g., masked-neither subject nor health care providers will know treatment being received) fashion while continuing other immunosuppressive medications. Subjects in this arm will be maintained on low-dose (0.15 mg/kg/day) daily steroids.
Administered as a bolus intravenous injection. The first dose is given pre-operatively, the second dose is given on post-transplant day four. Dosage is determined by individual weight.
Muut nimet:
  • Simulect
  • Anti-CD25 monoclonal antibody, chimeric
Participants receiving cyclosporine microemulsion formula (in lieu of tacrolimus) will have the dose adjusted to maintain a whole blood trough Abbott TDx assay monoclonal level of 175-400 ng/mL (or an equivalent high pressure liquid chromatography (HPLC) level) for the first 2 weeks after transplant. The dose will subsequently be tapered to maintain a trough level of 175-300 ng/mL from week 3 to month 3, and 50-250 ng/mL from month 3 through the end of the study at month 36 (year 3).
Muut nimet:
  • CsA
Participants receiving tacrolimus (in lieu of Cyclosporine) will have the dose adjusted to maintain a whole blood trough level between 10 and 15 ng/mL for the first 4weeks after transplant. Trough levels will be maintained between 5 and 10 ng/mL thereafter throughout the duration of the study.
Participants take daily (orally, either as tablets or as liquid) starting on postoperative day 1 at a dose of 6 mg/m2 and will be adjusted to maintain a trough level of 10-20 ng/mL throughout the study.
Administered at 10 mg/kg intravenously perioperatively and on postoperative day 1.
Administered orally beginning on Post-Op Day 2 and maintained for all participants until day 180. Randomization will determine whether patients will maintain this treatment following day 180.
All subjects will receive TMP SMX (Bactrim), pneumocystis jiroveci (carinii) prophylaxis, beginning on postoperative day 1 and continuing for 6 months following transplant. Dosage: 10 mg/kg taken orally three times weekly (maximum dose 160 mg).
Muut nimet:
  • trimetopriimi/sulfametoksatsoli
  • TMP SMX

Mitä tutkimuksessa mitataan?

Ensisijaiset tulostoimenpiteet

Tulosmittaus
Aikaikkuna
Growth, measured as change in standardized height from 6 month to 2.5 years post-transplantation
Aikaikkuna: At 6 months and 2.5 years post-transplant
At 6 months and 2.5 years post-transplant

Toissijaiset tulostoimenpiteet

Tulosmittaus
Aikaikkuna
Graft and patient survival
Aikaikkuna: Throughout study
Throughout study
Biopsy-proven acute rejection
Aikaikkuna: Throughout study
Throughout study
Renal function, measured by serum creatinine and the calculated creatinine clearances
Aikaikkuna: Throughout study
Throughout study
Hypertension
Aikaikkuna: Throughout study
Throughout study
Cushingoid features
Aikaikkuna: Throughout study
Throughout study
Systolic and diastolic blood pressure levels
Aikaikkuna: Throughout study
Throughout study
Fasting lipid profile
Aikaikkuna: Throughout study
Throughout study

Yhteistyökumppanit ja tutkijat

Täältä löydät tähän tutkimukseen osallistuvat ihmiset ja organisaatiot.

Julkaisuja ja hyödyllisiä linkkejä

Tutkimusta koskevien tietojen syöttämisestä vastaava henkilö toimittaa nämä julkaisut vapaaehtoisesti. Nämä voivat koskea mitä tahansa tutkimukseen liittyvää.

Opintojen ennätyspäivät

Nämä päivämäärät seuraavat ClinicalTrials.gov-sivustolle lähetettyjen tutkimustietueiden ja yhteenvetojen edistymistä. National Library of Medicine (NLM) tarkistaa tutkimustiedot ja raportoidut tulokset varmistaakseen, että ne täyttävät tietyt laadunvalvontastandardit, ennen kuin ne julkaistaan ​​julkisella verkkosivustolla.

Opi tärkeimmät päivämäärät

Opiskelun aloitus

Maanantai 1. tammikuuta 2001

Ensisijainen valmistuminen (Todellinen)

Keskiviikko 1. kesäkuuta 2005

Opintojen valmistuminen (Todellinen)

Keskiviikko 1. kesäkuuta 2005

Opintoihin ilmoittautumispäivät

Ensimmäinen lähetetty

Keskiviikko 29. elokuuta 2001

Ensimmäinen toimitettu, joka täytti QC-kriteerit

Torstai 30. elokuuta 2001

Ensimmäinen Lähetetty (Arvio)

Perjantai 31. elokuuta 2001

Tutkimustietojen päivitykset

Viimeisin päivitys julkaistu (Arvio)

Perjantai 21. lokakuuta 2016

Viimeisin lähetetty päivitys, joka täytti QC-kriteerit

Keskiviikko 19. lokakuuta 2016

Viimeksi vahvistettu

Lauantai 1. lokakuuta 2016

Lisää tietoa

Tähän tutkimukseen liittyvät termit

Yksittäisten osallistujien tietojen suunnitelma (IPD)

Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?

JOO

IPD-suunnitelman kuvaus

Participant level data and additional relevant materials are available to the public in the Immunology Database and Analysis Portal (ImmPort). ImmPort is a long-term archive of clinical and mechanistic data from DAIT-funded grants and contracts.

Tutkimustiedot/asiakirjat

  1. Yksittäisen osallistujan tietojoukko
    Tiedon tunniste: SDY133
    Tietokommentit: ImmPort study identifier is SDY133
  2. Tutkimuspöytäkirja
    Tiedon tunniste: SDY133
    Tietokommentit: ImmPort study identifier is SDY133
  3. Study summary, -design,-demographics, -files et al.
    Tiedon tunniste: SDY133
    Tietokommentit: ImmPort study identifier is SDY133

Nämä tiedot haettiin suoraan verkkosivustolta clinicaltrials.gov ilman muutoksia. Jos sinulla on pyyntöjä muuttaa, poistaa tai päivittää tutkimustietojasi, ota yhteyttä register@clinicaltrials.gov. Heti kun muutos on otettu käyttöön osoitteessa clinicaltrials.gov, se päivitetään automaattisesti myös verkkosivustollemme .

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