Copenhagen Acute Renal Complications After Transplantations Study Group

NCT ID: NCT02744872

Last Updated: 2016-10-06

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

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

42 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-09-30

Study Completion Date

2016-10-31

Brief Summary

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Lung transplanted patients experience marked decrease in renal function post transplant mainly due to cyclosporine induced renal changes. Calcium channel blockers may improve renal function in cyclosporine treated transplant recipients through their effects in avoiding cyclosporine-induced renal vasoconstriction and facilitating renal sodium output.

The aim of this study is to examine if calcium channel blockade administered before lung transplantation prevent cyclosporine induced nephropathy.

The design is an intention to treat randomized double blinded single center study. Patients are randomized to two groups, one that received felodipine and one that receives placebo.

Study population is all patients listed for lung transplantation in Denmark in the study period.

Intervention is tablet felodipine titrated to 10 mg, one daily dose in 12 weeks

Primary endpoint is change in renal function as measured by glomerular filtration rate using chromium-51 labeled ethylenediamine tetraacetic acid (51-Cr-EDTA) in the felodipine treated group compared with the placebo group.

Detailed Description

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Lung transplanted patients experience marked decrease in renal function post transplant mainly due to cyclosporine induced renal changes.

Calcium channel blockers exert renal effects consisting mainly of renal vasodilation and facilitation of renal excretion of sodium through a direct action on renal tubules. Calcium channel blockers improve renal function in cyclosporine treated transplant recipients through their effects in avoiding cyclosporine-induced renal vasoconstriction and facilitating renal sodium output.

Studies in both animal models and humans have demonstrated that calcium channel blockers maintain or reduce renal vascular resistance and preserve or enhance renal blood flow and glomerular filtration rate (GFR).

The aim of this study is to examine if calcium channel blockade administered before lung transplantation prevent cyclosporine induced nephropathy.

The design is an intention to treat randomized double blinded single center study. Patients are randomized to two groups, one that received felodipine and one that receives placebo.

Study population is all patients listed for lung transplantation in Denmark in the study period.

Sample size calculation estimated that 32 patients are needed, 16 patients in each group, with an estimated dropout incidence of 5 patients in each group. This will be able to detect an estimated 50% reduction in the decrease in measured GFR from 40 ml/min in the placebo group to 20 ml/min in treatment group, 80% power and a two-sided t-test, 5 % significance level.

Intervention is tablet Felodipine titrated to 10 mg, one daily dose in 12 weeks

Renal function is determined by 51-Cr-EDTA clearance measurement at times 0 before transplantation and after 1, 3 and 12 weeks.

Primary endpoint is change in renal function as measured by 51-Cr-EDTA clearance in the felodipine treated group compared with the placebo group.

Safety is monitored and adverse events are usually mild headache, tachycardia, leg edema, angina pectoris and hypotension.

Conditions

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Disorder Related to Lung Transplantation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Felodipine

Tablet Felodipin 10 mg x 1 daily

Group Type ACTIVE_COMPARATOR

Felodipine

Intervention Type DRUG

Felodipine 10 mg once daily or identical placebo

Placebo

Identical placebo once daily

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo

Interventions

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Felodipine

Felodipine 10 mg once daily or identical placebo

Intervention Type DRUG

Placebo

Placebo

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* All patients who are undergoing lung transplantation in Denmark

Exclusion Criteria

* Fertile women not using contraceptives
* Patients allergic to calcium antagonists
* Patients receiving treatment with Calcium antagonist 14 days prior to transplant
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Rigshospitalet, Denmark

OTHER

Sponsor Role lead

Responsible Party

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Bo Feldt-Rasmussen

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Bo Feldt-Rasmussen

Role: PRINCIPAL_INVESTIGATOR

Professor

Locations

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Department of Nephrology P, Copenhagen University Hospital, Rigshospitalet

Copenhagen Ø, Copenhagen, Denmark

Site Status

Countries

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Denmark

Other Identifiers

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2008-004771-22

Identifier Type: -

Identifier Source: org_study_id

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