Neurocognitive Function Changes With Extended-Release Tacrolimus Among Older Kidney Transplant Recipients

NCT ID: NCT06751992

Last Updated: 2025-11-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE4

Total Enrollment

92 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-01

Study Completion Date

2027-10-01

Brief Summary

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The objective of this randomized controlled study is to assess the neurocognitive outcomes between individuals using immediate-release (IR) tacrolimus (Prograf®) and those who were converted to extended-release tacrolimus (Envarsus XR) among older kidney transplant recipients (KTRs).

Detailed Description

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Conditions

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Kidney Transplant Recipients Old Age

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

A prospective, open-label, single-center, randomized controlled phase 4 trial
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Envarsus XR conversion

Patients who are randomized to this group will receive extended-release tacrolimus (Envarsus XR) at 80 percent of their total daily dose of IR tacrolimus (Prograf) before the switch. Tacrolimus trough level will be obtained 3-4 weeks after the conversion to ensure appropriate dosage.

Group Type EXPERIMENTAL

Conversion to extended-release tacrolimus

Intervention Type DRUG

Conversion from immediate-release tacrolimus (Prograf) to extended-release tacrolimus (Envarsus XR) as a part of the maintenance immunosuppressive treatment

Prograf maintenance

Patients in the IR tacrolimus (Prograf) maintenance group will continue with their current dose of IR tacrolimus (Prograf) before enrollment unless the drug trough levels deviate from the therapeutic range.

Group Type ACTIVE_COMPARATOR

Maintenance of immediate-release tacrolimus

Intervention Type DRUG

Continuing immediate-release tacrolimus (Prograf) as a part of the maintenance immunosuppressive treatment

Interventions

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Conversion to extended-release tacrolimus

Conversion from immediate-release tacrolimus (Prograf) to extended-release tacrolimus (Envarsus XR) as a part of the maintenance immunosuppressive treatment

Intervention Type DRUG

Maintenance of immediate-release tacrolimus

Continuing immediate-release tacrolimus (Prograf) as a part of the maintenance immunosuppressive treatment

Intervention Type DRUG

Other Intervention Names

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Envarsus XR Prograf

Eligibility Criteria

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Inclusion Criteria

* Able to give informed consent for participation in the study
* Patients who have regular outpatient follow-up at the Massachusetts General Hospital (MGH) transplant center
* ≥1 year since the latest kidney transplantation
* On IR tacrolimus as maintenance therapy
* At a stable therapeutic tacrolimus level (5-10 ng/ml) over the last ≥3 months
* Stable kidney function \[\<20% variability between the last two estimated glomerular filtration rate (eGFR)\]
* Utilizing English or Spanish as the primary language

Exclusion Criteria

* Dual organ transplantation
* Rejection within the last three months
* History of moderate to severe dementia (defined by Dementia Severity Rating Scale ≥19)
* History of Parkinson's disease
* Decompensated liver disease
* Active cancer
* Uncontrolled depression or anxiety
* Blindness
* Deafness
* Intellectual disabilities
* Pregnancy
* eGFR \<15 mL/min/1.73 m2 at the time of enrollment
* Total bilirubin \>3.0 mg/dL
Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Veloxis Pharmaceuticals

INDUSTRY

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Leonardo V. Riella, MD, PhD

Medical Director of Kidney Transplantation

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Leonardo V. Riella, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Hospital

Locations

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MGH Kidney Transplant Clinic

Boston, Massachusetts, United States

Site Status

Countries

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United States

Central Contacts

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Leonardo V. Riella, MD, PhD

Role: CONTACT

6177240345 ext. 40345

Sul A Lee, MD, MS

Role: CONTACT

6177266516

Facility Contacts

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Riella, M.D., Ph.D.

Role: primary

877-644-2860

Other Identifiers

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2024P000460

Identifier Type: -

Identifier Source: org_study_id

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