Gengraf Conversion Study in Stable Renal Allograft Transplant Recipients

Overview

The purpose of this study is to establish the therapeutic equivalence of Gengraf® with the standard treatment Neoral® for a treatment period of 6 months in stable renal allograft transplant recipients with respect to drug levels, dosage, and acute graft rejection and other adverse events.

Full Title of Study: “A Randomized, Multi-center, Open Label Trial to Establish the Therapeutic Equivalence Between Neoral® and Gengraf® in Stable Renal Allograft Recipients [Gengraf Conversion Study]”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: None (Open Label)
  • Study Primary Completion Date: December 2005

Detailed Description

The introduction of cyclosporine (CsA) into clinical practice resulted in improvements in acute renal allograft rejection rate and graft survival in renal transplant patients. Gengraf a microemulsion formulation of CsA though granted an AB-rated equivalent to Neoral, because of concerns over the use of generic drugs in transplantation, we undertook this study to evaluate the clinical efficacy and safety of Gengraf. We conducted a multicenter, randomized, open labeled study to establish the equivalence between Gengraf and Neoral in stable renal transplant recipients for a treatment period of 6 months. 6 months post transplant patients with stable graft function and receiving a stable dose of neoral were recruited into the study. Eligible patients were randomly assigned to remain on Neoral or convert to an equal milligram-for-milligram dose of Gengraf. The primary end-point was serum creatinine at 26 weeks.

Interventions

  • Drug: Neoral
    • Neoral® capsule containing 25mg or 100mg cyclosporine
  • Drug: Gengraf® capsule containing 25mg or 100mg cyclosporine
    • Transplant patients who were stable on Neoral were converted to Gengraf

Arms, Groups and Cohorts

  • Active Comparator: Neoral
    • Patients who continued to be treated with the drug Neoral.
  • Experimental: Gengraf arm
    • Patients were randomly selected to be converted to ‘Gengraf® capsule containing 25mg or 100mg cyclosporine’

Clinical Trial Outcome Measures

Primary Measures

  • Serum creatinine level at 12 weeks
    • Time Frame: at 12 weeks
    • Serum creatinine level at 12 weeks after conversion from Neoral to Gengraf

Secondary Measures

  • CsA trough concentration and at 2 hour after CsA administration, at 2 weeks, 6 weeks 12 weeks, 6 months, 9 months and 12 months post randomization.
    • Time Frame: weeks 2, 6, 12, months 6, 9 and 12.

Participating in This Clinical Trial

Inclusion Criteria

1. Written informed consent obtained from patient or parents/guardian. 2. Patients who are more than 6 months post transplant 3. Stable graft function i.e. serum creatinine less than 300 umol/l 4. Patients currently on a stable dose of capsule Neoral within last one month Exclusion Criteria:

1. Multiple organ transplantation 2. Pregnant or nursing woman, or women of childbearing potential without an effective method of birth control. Effective birth control methods are oral contraception, Norplant, surgical sterilization, Intra Uterine Device or diaphragms in conjunction with spermicidal foam and condom on the male partner. 3. Participation in any drug trial in which the patient received an investigational drug within 30 days preceding the screening phase of this study. 4. Those persons directly involved in the conduct of the study. 5. Active infection at the time of screening for enrollment into trial. 6. Acute graft rejection within the past 3 months 7. Mentally unstable or history of mental diseases 8. History of drug or alcohol abuse within the past 2 years. 9. History of non-compliance to medical regimen and patients who are unwilling or unable to comply with the protocol. 10. Decompensated liver disease 11. Any serious medical conditions or disability, which in the opinion of the investigator, would interfere with treatment or assessment or preclude completion of this study

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: 70 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Penang Hospital, Malaysia
  • Provider of Information About this Clinical Study
    • Principal Investigator: Dr.Ong Loke Meng, Consultant Nephrologist – Penang Hospital, Malaysia
  • Overall Official(s)
    • Dr.Ong L Meng, MBBS, FRCP, Principal Investigator, Penang Hospital, Ministry of Health Malaysia

Clinical trials entries are delivered from the US National Institutes of Health and are not reviewed separately by this site. Please see the identifier information above for retrieving further details from the government database.

At TrialBulletin.com, we keep tabs on over 200,000 clinical trials in the US and abroad, using medical data supplied directly by the US National Institutes of Health. Please see the About and Contact page for details.