LEO 22811 - A Phase 1, Double-Blind, Placebo-controlled, Single and Multiple Oral Dose Study in Healthy Subjects

February 21, 2025 updated by: LEO Pharma

LEO 22811 - A Phase I, Double-Blind, Placebo-controlled, Single and Multiple Oral Dose, Safety, Tolerability, Pharmacokinetic and Pharmacodynamic Study in Healthy Subjects

The purpose of this first-in-man trial is to determine the safety and tolerability of ascending single and multiple doses of LEO 22811 in healthy male subjects as well as to determine the safety and tolerability of single oral doses of LEO 22811 in healthy female subjects. The trial will be performed in two parts. In Part 1, single doses of LEO 22811 will be administered to healthy male and female subjects. In Part 2, multiple doses of LEO 22811 will be administered to healthy male subjects.

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.

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.
58

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

  • United Kingdom
      • Leeds, United Kingdom, LS2 9LH
        • Covance Clinical Research Unit Ltd

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 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria: (in summary)

  • Subjects will be Caucasian males or females of non-child bearing potential between 18 and 65 years of age
  • Subjects will have given their written informed consent to participate in the study and to abide by the study restrictions

Exclusion Criteria: (in summary)

  • Women of childbearing potential
  • Subjects with an infectious illness within 3 days prior to dosing
  • Subjects with a history of tuberculosis
  • Subjects who have received any prescribed systemic or topical medication (including natural/herbal medicines) within 14 days of the first dose administration
  • Subjects who have used any non-prescribed systemic or topical medication (including herbal remedies) within 7 days of the first dose administration
  • In Part 2, subjects who have received or been exposed to Cloroquine products, endoxan, or any immunomodulating agent (e.g. azathioprin) within one month prior to the start of dosing
  • Subjects who are participating in a clinical study
  • Subjects with a significant history of drug allergy or with a known or suspected hypersensitivity to any of the components of LEO 22811 as determined by the Investigator
  • Subjects who have any clinically significant allergic disease (excluding non-active hayfever) as determined by the Investigator
  • Subjects who have a supine blood pressure and supine pulse rate at screening higher than 150/90 mmHg and 100 beats per minute (bpm), respectively, or lower than 90/40 mmHg and 50 bpm, respectively
  • Subjects who have PR interval >= 200 ms, QTc(b) interval >450 ms (males) or > 470 ms (females), or who exhibit U waves of atrio-ventricular blocks at screening, based on 12-lead ECGs
  • Subjects who consume more than 28 units (males) or more than 21 units (females) of alcohol per week or who have a significant history of alcoholism or drug/chemical abuse
  • Subjects who smoke more than 5 cigarettes or the equivalent in tobacco per day
  • Subjects with a significant cardiac history (e.g. heart failure, hypokalemia, long QT syndrome)
  • Subjects who have had a clinically significant illness within 4 weeks of the start of dose administration as determined by the Investigator
  • Subjects who, in the opinion of their General Practitioner (GP) or the Investigator, should not participate in the study, including subjects suspected for whatever reason of not being able to comply with the requirements of the protocol

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

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: LEO 22811 solution
Drug: LEO 22811
First-in-man
Placebo Comparator: placebo solution
Drug: placebo solution

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
To determine the safety and tolerability of ascending single and multiple oral doses of LEO 22811 in healthy male subjects.
Time Frame: 4 days
4 days
To determine the safety and tolerability of single oral doses of LEO 22811 in healthy female subjects.
Time Frame: 4 days
4 days

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.
  • Principal Investigator: Douglas Lee, Covance

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

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.
January 1, 2009

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.
October 1, 2009

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.
November 1, 2009

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).
January 30, 2009

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.
January 30, 2009

First Posted (Estimated)

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.
February 2, 2009

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.
March 25, 2025

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.
February 21, 2025

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.
March 1, 2016

More Information

Terms related to this study

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.
  • LEO 22811-S21

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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