A First-In-Human SAD and MAD Study to Evaluate the Safety, Tolerability, PK and PD of SC Administered ALTB-268 in Healthy Volunteers

February 4, 2024 updated by: AltruBio Inc.

A First-In-Human, Randomized, Double-Blind, Single and Multiple Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Subcutaneously Administered ALTB-268 in Healthy Volunteers

This study with ALTB-268 will determine the safety, tolerability, pharmacokinetics and pharmacodynamics of single and multiple ascending doses of ALTB-268 in healthy volunteers.

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

This is a Phase I, first-in-human, randomized, double-blind, single and multiple ascending dose study to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of subcutaneously administered ALTB-268 in healthy volunteers. Up to 40 and 24 healthy volunteers will be recruited in single and multiple ascending doses, respectively.

The primary objective is to assess the safety and tolerability of subcutaneously (sc) administered ALTB-268 in healthy volunteers. The secondary objective is to assess the plasma pharmacokinetics of sc administered ALTB-268 in healthy volunteers. The exploratory objectives are to assess the pharmacodynamics and evaluate immunogenicity of sc administered ALTB-268 in healthy volunteers.

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.
56

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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Kansas
      • Lenexa, Kansas, United States, 66219
        • ICON Early Development Services

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 55 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Written Informed Consent and willingness to comply with the study restrictions.
  2. Sex: male or female volunteers.
  3. Age: 18 to 55 years, inclusive, at screening.
  4. Body mass index (BMI): 18.0 to 32.0 kg/m2, inclusive, at screening.
  5. Weight: 50 kg to 110 kg, inclusive, at screening.
  6. Healthy volunteers: Healthy status as defined by the absence of evidence of any clinically significant, in the opinion of the Investigator, active or chronic disease following a detailed medical and surgical history, a complete physical examination including vital signs, 12-lead ECG, hematology, blood chemistry, serology, and urinalysis

Exclusion Criteria:

  1. Males with female partners who are pregnant, lactating, or planning to become pregnant during this study or within 90 days after dosing of study drug.
  2. Use of any investigational drug or device within 30 days or five half-lives whichever is longer, of the first dose of study drug.
  3. Any disease which, in the opinion of the Investigator, poses an unacceptable risk to the volunteers.
  4. Clinically significant history of any drug sensitivity, drug allergy, or food allergy, as determined by the Investigator (such as anaphylaxis, hepatotoxicity, or treatment with steroids or epinephrine). Confirmatory circumstances would include treatment with epinephrine or in emergency department.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Sequential 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: ALTB-268
Subcutaneous dose in healthy volunteers
Biological: ALTB-268
monoclonal antibody
Placebo Comparator: Placebo
Subcutaneous dose in healthy volunteers
Other: Placebo
formulation buffer

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
Measure Description
Time Frame
Incidence of ALTB-268 Treatment-Emergent Adverse Events
Time Frame: through study completion, up to day 120 of the study
Adverse events (AEs) - severity of the AEs will be graded using the most current version of the Common Terminology Criteria for AE (CTCAE) (V5.0) 5-point scale. The relationship between AEs and the study drug will be indicated as related or not related.
through study completion, up to day 120 of the study

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
Pharmacokinetics of ALTB-268 Cmax
Time Frame: through study completion, up to day 120 of the study
Maximum plasma concentration
through study completion, up to day 120 of the study
Pharmacokinetics of ALTB-268 tmax
Time Frame: through study completion, up to day 120 of the study
Time to reach Cmax
through study completion, up to day 120 of the study
Pharmacokinetics of ALTB-268 t1/2
Time Frame: through study completion, up to day 120 of the study
Half life
through study completion, up to day 120 of the study
Pharmacokinetics of ALTB-268 CL/F
Time Frame: through study completion, up to day 120 of the study
Apparent clearance, calculated as dose/AUC0-inf
through study completion, up to day 120 of the study
Pharmacokinetics of ALTB-268 Rac
Time Frame: through study completion, up to day 120 of the study
The ratio of accumulation of a drug after repeated administration as compared to a single dose, PART B only
through study completion, up to day 120 of the study
Pharmacokinetics of ALTB-268 AUC (PK) of sc administered ALTB-268 in healthy volunteers.
Time Frame: through study completion, up to day 120 of the study
Including AUC0-t, AUC0-inf, AUC0-tau
through study completion, up to day 120 of the study

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Pharmacodynamics of ALTB-268 Receptor Occupancy
Time Frame: through study completion, up to day 120 of the study
Receptor Occupancy will be measured using a flow cytometry based method
through study completion, up to day 120 of the study
Exploratory Immunophenotyping Lymphocyte subsets
Time Frame: through study completion, up to day 120 of the study
Lymphocyte subsets, T,B and NK cells will be assessed using a flow cytometry based method
through study completion, up to day 120 of the study
Pharmacodynamics - change in target engagement biomarkers
Time Frame: through study completion, up to day 120 of the study
inhibition of cytokine release from ex-vivo stimulated T cells and the change of soluble (free) PSGL-1 molecule
through study completion, up to day 120 of the study

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.
AltruBio Inc.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
ICON plc

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: Daniel Dickerson, MD, ICON plc

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.
January 17, 2023

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 27, 2023

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.
October 27, 2023

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 20, 2023

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.
February 9, 2023

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.
February 13, 2023

Study Record Updates

Last Update Posted (Estimated)

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.
February 6, 2024

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 4, 2024

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.
February 1, 2024

More Information

Terms related to this study

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.
  • ALTB-268-101

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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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