Tacrolimus Blood Levels After Topical Application of Tacrolimus on Healthy Skin

April 23, 2026 updated by: LEO Pharma

Open-label, Non-randomised, Single-centre, Multiple-dose, Phase 1, Pharmacokinetic Trial With a Topical Formulation of Tacrolimus in Healthy Subjects

This is a phase I trial to evaluate tacrolimus blood levels after topical application of tacrolimus twice daily on healthy skin.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The purpose of this trial is to assess the safety of a topical formulation of tacrolimus.

Tacrolimus is commonly used in T-cell medicated diseases. It is expected that 24 subjects will be enrolled in the trial and will be assigned to receive topical application of tacrolimus twice daily for 14 days.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
24

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
    • Bavaria
      • Neu-Ulm, Bavaria, Germany, 89231
        • Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Key Inclusion Criteria:

  • Healthy male and female subjects between 18 and 60 years of age, with a body mass index (BMI) between 18.5 and 30 kg/m2 inclusive
  • Female subjects of childbearing potential must be confirmed not pregnant at the screening visit and use highly effective contraception during the trial.

Key Exclusion Criteria:

  • Treatment with the following medications: Topical immunosuppressive drugs (e.g. tacrolimus, corticosteroids), systemic immunosuppressive/immunomodulating drugs
  • Extensive UV radiation or sunlight on the application sites
  • Skin diseases
  • Wounded or damaged skin at the application site
  • Immunosuppressed or immunocompromised individuals
  • Renal or hepatic impairment or insufficiency
  • Known allergy or known or suspected hypersensitivity to any component(s) of the topical formulation of tacrolimus
  • Female subjects who are pregnant or lactating

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: topical formulation of tacrolimus
Drug: topical formulation of tacrolimus
Topical application of tacrolimus twice daily for 14 days (one dose on Day 14).

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Area Under the Plasma Concentration-Time Curve From Time Zero to Twelve Hours (AUC0-12) of tacrolimus on Days 1 and 14
Time Frame: Up to Day 14
Up to Day 14
Maximum Observed Drug Concentration (Cmax) of tacrolimus
Time Frame: On Days 1 and 14
On Days 1 and 14

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of adverse events (AEs) up to Day 21
Time Frame: Day -22 to Day 21
Day -22 to Day 21
Number of subjects with AEs up to Day 21
Time Frame: Day -22 to Day 21
Day -22 to Day 21
Absolute values of systolic and diastolic blood pressure at Days 1, 2, 14, and 21 summarised by mean and standard deviation
Time Frame: Day 1 to Day 21
Measurement unit: mmHg
Day 1 to Day 21
Absolute values of pulse at Days 1, 2, 14, and 21 summarised by mean and standard deviation
Time Frame: Day 1 to Day 21
Measurement unit: bpm
Day 1 to Day 21
Absolute values of body temperature at Days 1, 2, 14, and 21 summarised by mean and standard deviation
Time Frame: Day 1 to Day 21
Measurement unit: °C
Day 1 to Day 21
Changes in systolic and diastolic blood pressure from baseline to Day 21 summarised by mean and standard deviation
Time Frame: Day 1 to Day 21
Measurement unit: mmHg
Day 1 to Day 21
Changes in pulse from baseline to Day 21 summarised by mean and standard deviation
Time Frame: Day 1 to Day 21
Measurement unit: bpm
Day 1 to Day 21
Changes in body temperature from baseline to Day 21 summarised by mean and standard deviation
Time Frame: Day 1 to Day 21
Measurement unit: °C
Day 1 to Day 21
Area Under the Plasma Concentration-Time Curve From Time Zero to Last Quantifiable Concentration (AUC0-t) of tacrolimus on Day 14
Time Frame: Day 1 to Day 14
Day 1 to Day 14
Apparent Terminal Half-life (t1/2) of tacrolimus on Day 14
Time Frame: Day 1 to Day 14
Day 1 to Day 14

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
LEO Pharma

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Medical Expert, LEO Pharma

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 22, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 4, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 11, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 7, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 14, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 17, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 28, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 23, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • LP0121-1388
  • 2018-001959-12 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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