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Intestine TransplantationPhase 2NCT01294020

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

A Phase 2 study testing Tacrolimus and Tacrolimus prolonged release in people with Intestine Transplantation and Kidney Transplantation, run by Astellas Pharma Europe Ltd. at 16 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

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. Read more about this study

Who is it for?
Ages 5 to 16 years
What is being tested?
Tacrolimus and Tacrolimus prolonged release
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
81 participants
Where
16 sitesin 7 countries
Study dates
25 May 2011to 3 Nov 2025
Phase
Phase 2
Are there results?
None posted in the registry

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 5 to 16 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • 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

Who cannot join

  • 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

Trial locations and contacts

16 sites in 7 countries.

16 sites in 7 countries

France5 sites
  • Site FR34

    Bron, 69677

  • Site FR35

    Bron, 69677

  • Site FR31

    Paris, 75743

  • Site FR32

    Paris, 75743

  • Site FR33

    Paris, 75908

Other trials in France

United Kingdom3 sites
  • Site GB62

    Birmingham, B4 6NH

  • Site GB64

    London, WC1 3JH

  • Site GB61

    Manchester, M27 4HA

Other trials in United Kingdom

Belgium2 sites
  • Site BE21

    Brussels, 1020

  • Site BE22

    Brussels, 1200

Other trials in Belgium

Italy2 sites
  • Site IT74

    Bergamo, 24127

  • Site IT75

    Palermo, 90127

Other trials in Italy

Poland2 sites
  • Site PL51

    Warsaw, 04-730

  • Site PL52

    Warsaw, 04-730

Other trials in Poland

Czechia1 site
  • Site CZ42

    Prague, 150 06

Other trials in Czechia

Germany1 site
  • Site DE41

    Heidelberg, 69120

Other trials in Germany

About this study

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

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.

Read the detailed 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.

Being tested
Tacrolimus, Tacrolimus prolonged release
Keywords
Transplant, Liver, Tacrolimus, Kidney, Heart, Lung, Immunosuppression, Advagraf, Pharmacokinetics

What participants receive

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

  • TacrolimusDrug

    Also called Prograf, FK506

    Oral capsule

  • Tacrolimus prolonged releaseDrug

    Also called FK506E, MR4, Advagraf, tacrolimus modified release

    Oral capsule

Study groups in NCT01294020
Study groupRoleWhat they receive
Tacrolimus Prolonged ReleaseExperimentalParticipants converted from their routine tacrolimus based immunosuppressive regimen to tacrolimus as a study medication twice daily on day 1 and continued to receive treatment up to day 7. On day 8, participants switched to tacrolimus prolonged release once daily and received treatment up to day 14 in Part A of the study. In Part B, participants continued to receive tacrolimus prolonged release once daily from day 15 for a one-year follow-up period. In Part C, participants continued to receive tacrolimus prolonged release once daily when commercial tacrolimus prolonged release was not available. Part C continued until commercial tacrolimus prolonged release became available to participants (≥ 18 years of age) or the participants discontinued tacrolimus prolonged release, whichever occurred first.
Receives: Drug: Tacrolimus; Drug: Tacrolimus prolonged release

What is being measured

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

  1. Area Under the Plasma Concentration-time Curve from Time 0 to Time 24 Hours (AUC0-24h) for Tacrolimus and Tacrolimus Prolonged Release

    Measured: 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

  2. Number of Participants with Adverse Events (Part C)

    Measured: From first dose of tacrolimus prolonged release in Part C (12 months) up to 7 days after last dose (approximately 10 years)

Secondary outcomes (11)
  1. Maximum Concentration (Cmax) of Tacrolimus and Tacrolimus Prolonged Release

    Measured: 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

  2. Time to Attain Maximum Concentration (tmax) of Tacrolimus and Tacrolimus Prolonged Release

    Measured: 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

  3. Trough Concentration (C24) for Tacrolimus and Tacrolimus Prolonged Release

    Measured: Days 7 and 14, 24 hours after dosing

  4. 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.

    Measured: Up to Week 54

  5. 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.

    Measured: Up to Week 54

  6. 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).

    Measured: Up to Week 54

  7. 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

    Measured: Up to Week 54

  8. 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.

    Measured: Up to Week 54

  9. Efficacy Failure

    Efficacy failure is defined as the composite of the following: death, graft loss, BPAR and unknown outcome.

    Measured: Up to Week 54

  10. 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.

    Measured: From first dose of tacrolimus up to 7 days after last dose of tacrolimus prolonged release in Part A (up to 21 days)

  11. 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.

    Measured: 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)

Timeline

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

  1. First posted11 Feb 2011 (estimated)
  2. Study start25 May 2011
  3. Primary completion3 Nov 2025
  4. Study completion3 Nov 2025

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 2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
81 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01294020
Sponsor's protocol ID
PMR-EC-1206
Other IDs
2010-020925-42, 2024-513546-11-00
Status last verified
Oct 2026
First submitted
3 Feb 2011
Last updated
19 Oct 2026
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as products terminated during development. Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Tacrolimus and Tacrolimus prolonged release in people with Intestine Transplantation and Kidney Transplantation, run by Astellas Pharma Europe Ltd. at 16 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 7 inclusion and 6 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 19 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 16 sites in France, United Kingdom, Belgium, Italy, Poland 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Area Under the Plasma Concentration-time Curve from Time 0 to Time 24 Hours (AUC0-24h) for Tacrolimus and Tacrolimus Prolonged Release (time frame: 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). 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?
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 19 Oct 2026.

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