Study to Compare the Pharmacokinetics of Tacrolimus in Stable Pediatric Allograft Recipients Converted From Prograf® to Advagraf®

Kidney Transplantation Clinical Trial

Official title:

A Phase II, Open-Label, Multi-Center Study to Compare the Pharmacokinetics of Tacrolimus in Stable Pediatric Allograft Recipients Converted From a Prograf® Based Immunosuppressive Regimen to a Tacrolimus Prolonged Release, Advagraf® Based Immunosuppressive Regimen, Including a Long-Term Follow-Up

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT01294020
• Other study ID #: PMR-EC-1206
• Secondary ID: 2010-020925-42
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: May 25, 2011
• Est. completion date: May 31, 2026

Study information

• Verified date: June 2024
• Source: Astellas Pharma Inc
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Parts A & B: Conversion of stable pediatric allograft recipients from Prograf® immunosuppression to Advagraf® immunosuppression to compare exposure and one year follow-up for safety and efficacy.

Part C: Continuation of long-term follow-up and provision of ongoing study medication to subjects to whom Advagraf® is currently not available.

Description:

Part A: On Day 1 subjects will be converted from their routine Prograf®-based immunosuppressive regimen to a Prograf®-based immunosuppressive regimen supplied by the Sponsor as study medication and continue treatment until Day 7. The daily dose of the study medication must be the same [1:1 (mg:mg)] as the Prograf® dose received during the 30-day screening period.

On Day 7 the first 24 hour PK profile will be started. Samples will be taken over a 24 hour period and will be completed on Day 8.

On Day 8 subjects will be switched to once-daily Advagraf® on a 1:1 (mg:mg) total daily dose basis and continue treatment until Day 14.

On Day 14 the second 24-hour PK profile will be started. Samples will be taken over a 24-hour period and will be completed on Day 15.

Part B: One year follow-up period to evaluate safety and efficacy of tacrolimus when administered as an Advagraf®-based immunosuppressive regimen.

Part C: Continuation of long-term follow-up (from Day 365 onwards). Patients who have completed Part B and to whom continued treatment with Advagraf® is not currently available, will be offered participation in a continuation of long-term follow-up (Part C). Part C will continue until Advagraf® becomes available to these patients or these patients' discontinuation, whichever is the earliest.

Part C applies to patients in the following countries: United Kingdom, Czech Republic, Germany, Italy, and Poland only.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 81
• Est. completion date: May 31, 2026
• Est. primary completion date: October 25, 2015
• Accepts healthy volunteers: No
• Gender: All
• Age group: 5 Years to 16 Years

Eligibility

Inclusion Criteria:

• Must be able to swallow intact study medication capsules

• Received a single solid organ transplant at least 6 months prior to entry into the study

• The subject's parent(s), or their legal representative(s), has been fully informed and has given written informed consent to participate in the study. The subject has given assent where applicable

• Has been receiving a Prograf® based immunosuppressive regimen for a minimum of 3 months

• Negative pregnancy test prior to enrolment (females)

• Must agree to practice effective birth control during the study

• Stable whole blood trough levels of tacrolimus in the range of 3.5 - 15ng/mL (+/-0.5ng/mL) and clinically stable in the opinion of the Investigator

Exclusion Criteria:

• Previously received a multiple organ transplant

• Any rejection episode within 3 months prior to enrolment or within the last 6 months that required anti-lymphocyte antibody therapy, or 2 or more rejection episodes within the last 12 months

• Currently receiving Rapamycin, Certican or MPA (Myfortic®)

• Chronic dysfunction of the allograft, in the opinion of the Investigator

• Major changes in their immunosuppressive regimen within the last 3 months prior to entry into the study

• The subject is pregnant or breast feeding

Related Conditions & MeSH terms

• Heart Transplantation
• Intestine Transplantation
• Kidney Transplantation
• Liver Transplantation
• Lung Transplantation

Intervention

Drug:
• Tacrolimus
Oral capsule
• Tacrolimus prolonged release
Oral capsule

Locations

Country	Name	City	State
Belgium	Site BE21	Brussels
Belgium	Site BE22	Brussels
Czechia	Site CZ42	Prague 5
France	Site FR34	Bron Cedex
France	Site FR35	BRON Cedex
France	Site FR31	Paris Cedex 15
France	Site FR32	Paris Cedex 15
France	Site FR33	Paris Cedex 15
Germany	Site DE41	Heidelberg
Italy	Site IT74	Bergamo
Italy	Site IT75	Palermo
Poland	Site PL51	Warsaw
Poland	Site PL52	Warsaw
United Kingdom	Site GB62	Birmingham
United Kingdom	Site GB64	London
United Kingdom	Site GB61	Manchester

Sponsors (1)

Lead Sponsor	Collaborator
Astellas Pharma Europe Ltd.

Countries where clinical trial is conducted

Belgium,  Czechia,  France,  Germany,  Italy,  Poland,  United Kingdom, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Area Under the Plasma Concentration-time Curve from Time 0 to Time 24 Hours (AUC0-24h) for Tacrolimus and Tacrolimus Prolonged Release		Day 7 (for tacrolimus) and day 14 (for tacrolimus prolonged release) at predose and 1, 2, 4, 6, 12, 13, 14, 16, 18 and 24 hours postdose
Secondary	Maximum Concentration (Cmax) of Tacrolimus and Tacrolimus Prolonged Release		Day 7 (for tacrolimus) and day 14 (for tacrolimus prolonged release) at predose and 1, 2, 4, 6, 12, 13, 14, 16, 18 and 24 hours postdose
Secondary	Time to Attain Maximum Concentration (tmax) of Tacrolimus and Tacrolimus Prolonged Release		Day 7 (for tacrolimus) and day 14 (for tacrolimus prolonged release) at predose and 1, 2, 4, 6, 12, 13, 14, 16, 18 and 24 hours postdose
Secondary	Trough Concentration (C24) for Tacrolimus and Tacrolimus Prolonged Release		Days 7 and 14, 24 hours after dosing
Secondary	Number of Participants with Acute Rejections	Rejection episodes/acute rejections are indicated by clinical and/or laboratory signs, and are classified according to their rejection specific treatment: •Spontaneously Resolving Acute Rejection: not treated with new or increased corticosteroid medication, antibodies or any other medication and resolved, irrespective of any tacrolimus dose changes; •Corticosteroid Sensitive Acute Rejection: treated with new or increased corticosteroid medication only and which has resolved, irrespective of any tacrolimus dose changes; •Corticosteroid Resistant Acute Rejection: did not resolve following treatment with corticosteroids; - Resolved with further treatment: any acute rejection with an end date AND a treatment other than corticosteroid used; - Unresolved with further treatment: any acute rejection with no end date AND a treatment other than corticosteroid used; - Unresolved with no further treatment: any acute rejection with no end date AND ONLY corticosteroid treatment was used.	Up to Week 54
Secondary	Number of Participants with Biopsy Proven Acute Rejections (BPARs)	BPAR episodes are defined as acute rejection episodes confirmed by biopsy, and are classified according to their rejection specific treatment: •Spontaneously Resolving Acute Rejection: not treated with new or increased corticosteroid medication, antibodies or any other medication and resolved, irrespective of any tacrolimus dose changes; •Corticosteroid Sensitive Acute Rejection: treated with new or increased corticosteroid medication only and which has resolved, irrespective of any tacrolimus dose changes; •Corticosteroid Resistant Acute Rejection: did not resolve following treatment with corticosteroids; - Resolved with further treatment: any acute rejection with an end date AND a treatment other than corticosteroid used; - Unresolved with further treatment: any acute rejection with no end date AND a treatment other than corticosteroid used; - Unresolved with no further treatment: any acute rejection with no end date AND ONLY corticosteroid treatment used.	Up to Week 54
Secondary	Severity of Biopsy Proven Acute Rejection Episodes	The severity of BPARs is categorized with specific criteria by organ: For kidney transplant participants, according to Banff '97 Diagnostic categories for renal allograft biopsies - Banff '07 update (Acute antibody-mediated rejection I, II, and III, Acute T cell mediated rejection IA, IB, IIA, IIB and III); for liver transplant participants, according to 1997 Banff Schema for grading of Liver Allograft Rejection (mild, moderate, severe or indeterminate/borderline); for heart, according to Standardized Nomenclature of the International Society of Heart and Lung Transplantation (mild, moderate, severe).	Up to Week 54
Secondary	Patient survival	Patient survival is defined as the time from first dose of tacrolimus as study drug to the date of death from any cause	Up to Week 54
Secondary	Graft survival	Graft survival is defined as the time from the first dose of tacrolimus as study drug to graft loss. Graft loss is defined as retransplantation, nephrectomy (in case of kidney transplantation), death or dialysis (in case of kidney transplantation) ongoing at end of study or at discontinuation, unless superseded by follow-up information.	Up to Week 54
Secondary	Efficacy Failure	Efficacy failure is defined as the composite of the following: death, graft loss, BPAR and unknown outcome.	Up to Week 54
Secondary	Number of Participants with Adverse Events (Part A)	Safety as assessed by adverse events (AEs), which includes abnormalities identified during a medical test (e.g. laboratory tests, vital signs, electrocardiogram, etc.) if the abnormality induced clinical signs or symptoms, needed active intervention, interruption or discontinuation of study medication or was clinically significant. A serious AE (SAE) is an event resulting in death, persistent or significant disability/incapacity or congenital anomaly or birth defect, is life-threatening, required or prolonged hospitalization or is considered medically important.	From first dose of tacrolimus up to 7 days after last dose of tacrolimus prolonged release in Part A (up to 21 days)
Secondary	Number of Participants with Adverse Events (Part B)	Safety as assessed by adverse events (AEs), which includes abnormalities identified during a medical test (e.g. laboratory tests, vital signs, electrocardiogram, etc.) if the abnormality induced clinical signs or symptoms, needed active intervention, interruption or discontinuation of study medication or was clinically significant. A serious AE (SAE) is an event resulting in death, persistent or significant disability/incapacity or congenital anomaly or birth defect, is life-threatening, required or prolonged hospitalization or is considered medically important.	From first dose of tacrolimus prolonged release in Part A up to 7 days after last dose of tacrolimus prolonged release in Part B (up to 55 weeks)

External Links

•   Link to results on Astellas Clinical Study Results website