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Completed

NCT Number: NCT02005562

OPERA Study: A Study of Two Dosing Regimens of CellCept (Mycophenolate Mofetil) in Kidney Transplant Patients.

This study will compare the incidence of acute clinical or subclinical rejection between immunosuppression with CellCept at a starting dose of 3mg po daily with therapeutic drug monitoring and standard immunosuppression with CellCept and a fixed dose of 2g po daily, in kidney transplant recipients receiving induction by anti-IRL2, cyclosporine therapy, and early discontinuation of steroids. Patients will be randomized to one of the two treatment arms. The anticipated time on study treatment is 52 weeks.

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Key information

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Bordeaux, France

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • adult patients, aged 18-75 years of age;
  • in receipt of first donor kidney;
  • eligible to receive immunosuppressive treatment comprising IRL2, CellCept, cyclosporine and steroids;
  • eligible to receive oral treatment from the first day post-transplantation.

Exclusion criteria

  • patients receiving a second or subsequent kidney transplant, or multi-organ transplant;
  • history of malignancy in the last 5 years (except successfully treated squamous cell or basal cell cancer and cervical cancer in situ);
  • patients with active hepatitis B and/or hepatitis C, or HIV infection.

Treatment and study plan

Mycophenolate mofetil

Drug

3 g p.o. in divided doses q12h beginning on the day of renal transplant, Day 0, or the day before, Day -1, and continuing to Week 52, adapted to MPA by AUC on Weeks 2, 6, 12, 26, and 52 to obtain AUC0-12 of 50 milligrams (mg) multiplied by (*) height (h)/ liter(L).

Other names: CellCept

anti-IL-2R

Drug

Induction by IL-2R was administered at Day 0 per standard of care at the site at the investigators discretion.

methylprednisolone

Drug

500 mg intravenous (i.v.) was administered before or after the transplantation, and 0.5 mg/kg p.o. daily from Day 1 to Day 7.

Other names: Solumedrol

cyclosporine

Drug

100-1500 nanograms (ng) per milliliter (mL) from Day 0 to Week 4, 800-1200 ng/mL from Week 4 to Week 12 and 500-800 ng/mL from Week 12 to Week 52

Primary outcomes

  1. Percentage of Participants With Biopsy-Proven Acute Rejection (BPAR) Before Week 12 or Acute Subclinical Rejection on Protocol Biopsy at Week 12

    Time frame: Week 12

    BPAR was defined as the presence of clinical signs and kidney biopsy that confirmed the rejection before Week 12. Subclinical acute rejection was defined as an increase of serum creatinine at Week 12 strictly less than 10 percent (%) compared to baseline (BL) values and BPAR of Grade greater than or equal to (≥) 1 according to Banff 1997 classification at Week 12.

Secondary outcomes

  1. Serum Creatinine Values [Micromoles Per Liter (µmol/L)]

    Time frame: Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    The mean serum creatinine values at Weeks 2, 4, 6, 12, 16, 26, 39, and 52.

  2. Creatinine Clearance Values Estimated With the Cockcroft-Gault Equation (Milliliters Per Minute [mL/Min])

    Time frame: Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    The mean creatinine clearance values at Weeks 2, 4, 6, 12, 16, 26, 39, and 52 estimated using the Cockcroft-Gault equation.

  3. Creatinine Clearance Values Estimated With the Modification of Diet in Renal Disease (MDRD) Simplified Equation

    Time frame: Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    The mean creatinine clearance values at Weeks 2, 4, 6, 12, 16, 26, 39, and 52 estimated using the MDRD simplified equation. For males, the MDRD simplified equation was defined as MDRD (mL/min/1.73 square meters [m^2]) =186 multiplied by (*) serum creatinine in mg/L raised to the power of (^) -1.154 * age ^ -0.203. For females, the MDRD simplified equation was defined as MDRD (mL/min/1.73 m^2) = males formula * 0.742.

  4. Time to Occurrence of First BPAR Between Day 0 and Week 52 - Percentage of Participants With an Event

    Time frame: Day 0, Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    BPAR was defined as the presence of clinical signs and kidney biopsy that confirmed the rejection before Week 12. Subclinical acute rejection at Week 12 was included in the analysis. Subclinical acute rejection was defined as an increase of serum creatinine at Week 12 strictly less than 10% compared to BL values and BPAR of Grade ≥1 according to Banff 1997 classification at Week 12. The occurrence of the first BPAR was defined as the time from randomization to the first recorded BPAR between Day 0 and Week 52. The results of protocol biopsies at Week 12 were taken into account. Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

  5. Time to Occurrence of First BPAR Between Day 0 and Week 52

    Time frame: Day 0, Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    BPAR was defined as the presence of clinical signs and kidney biopsy that confirmed the rejection before Week 12. Subclinical acute rejection at Week 12 was included in the analysis. Subclinical acute rejection was defined as an increase of serum creatinine at Week 12 strictly less than 10% compared to BL values and BPAR of Grade ≥1 according to Banff 1997 classification at Week 12. The occurrence of the first BPAR was defined as the time from randomization to the first recorded BPAR between Day 0 and Week 52. The results of protocol biopsies at Week 12 were taken into account. Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

  6. Percentage of Participants With at Least One BPAR at Week 12 and Week 52

    Time frame: Weeks 12 and 52

    BPAR was defined as the presence of clinical signs and kidney biopsy that confirmed the rejection before Week 12. Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

  7. Graft Histology - Percentage of Participants With at Least One Borderline Lesion at Week 12 and Week 52

    Time frame: Weeks 12 and 52

    Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

  8. Graft Histology - Percentage of Participants With at Least One Chronic Graft Nephropathy at Week 12 and Week 52

    Time frame: Weeks 12 and 52

    Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

  9. Graft Loss - Percentage of Participants With an Event

    Time frame: Day 0, Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    Graft loss was defined as physical loss (nephrectomy), functional loss [necessitating maintenance dialysis for greater than (>)8 weeks], retransplant or death. Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

  10. Time to Graft Loss

    Time frame: Day 0, Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    The median time, in days, from randomization to graft loss event. Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

  11. Participant Survival

    Time frame: Day 0, Weeks 2, 4, 6, 12, 16, 26, 39, and 52

    Participants survival was defined as the percentage of participants living with or without a functioning graft between Weeks 0 and 52. Participants were censored at the date of last treatment, date of last contact or withdrawal, and date of death.

Sponsors and collaborators

Lead sponsor

Hoffmann-La Roche

Industry

Registry information

Official study title

A Randomized Study Comparing the Incidence of Acute Clinical or Subclinical Rejection With Two Dosing Regimens of CellCept in de Novo Renal Transplant Recipients Receiving Induction, Cyclosporine and Brief Steroid Therapy

Important dates

Study start
2006
Primary completion
2009
Study completion
2009
First posted
Dec 9, 2013
Registry last updated
Nov 11, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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