A Study of APL-10456-Vaccine

May 22, 2026 updated by: Apollo Therapeutics Ltd

A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Two-Part Study to Evaluate the Safety, Tolerability, and Immunogenicity of APL-10456-Vaccine in Healthy Volunteers

AP09CP01 is a Phase 1, Randomized, Double-Blind, Placebo-Controlled, Two-Part Study which is conducted in Australia. The main purpose of this research study is to evaluate the safety, side effects, and immune response of APL-10456-Vaccine, a Rhinovirus (RV) Vaccine, when compared with a placebo in Younger and Older Healthy Volunteers

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

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.
144

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.
  • Early 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 Locations

  • Australia
    • Victoria
      • Melbourne, Victoria, Australia, 3124
        • Emeritus Research
      • Melbourne, Victoria, Australia, 3153
        • Veritus Research

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age Part A: Age ≥18 years and ≤54 years Part B: Age ≥55 years
  • Healthy participants who are determined by medical history, physical examination, and clinical judgment of the investigator to be eligible for inclusion in the study.

Exclusion Criteria:

  • History of severe allergic or anaphylactic reactions of any type
  • Acutely ill or febrile (temperature ≥38.0°C/100.4°F) 72 hours prior to or at the Day 1 visit
  • History or presence of clinically significant cardiovascular, pulmonary, hepatic, renal, haematological, gastrointestinal, endocrine, immunologic, dermatologic, psychiatric or neurological disease/disorder within the past 3 months, or any acute minor illness (e.g. common cold, influenza, minor infection) within the past 1 month, determined by the PI (or delegate) to be clinically relevant
  • Reported history of congenital or acquired immunodeficiency
  • Dermatologic conditions that could affect local solicited AR assessments
  • Coagulopathy or a bleeding disorder that is considered a contraindication to IM injection or phlebotomy
  • Diagnosis of a malignancy within previous 5 years
  • Has received systemic immunosuppressants for >14 days in total within 180 days prior to the Randomization Visit
  • Has received or plans to receive any licensed or authorized vaccine, including COVID-19 vaccines, ≤28 days prior to the study injection (Day 1) or plans to receive a licensed or authorized vaccine within 28 days after the final study injection
  • Has received systemic immunoglobulins, long-acting biological therapies that affect immune responses (eg, infliximab), or blood products within 90 days prior to the Randomization Visit or plans to receive them during the study
  • Female participant with positive pregnancy test or Lactating females
  • Has positive serology tests result (HIV, HCV and HBsAg) at screening visit
  • Has positive drugs of abuse test results at screening visit
  • Has participated in an interventional clinical study within 3 months prior to the Randomization Visit or plans to do so while participating in this study
  • Has donated ≥450 mL of blood products within 28 days prior to the Randomization Visit or plans to donate blood products during the study

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Quadruple

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: Part A: in healthy volunteers age ≥18 years and ≤ 54 years Part B: in healthy volunteers ≥55 year
Part A: Three (3) APL-10456-Vaccine dose levels which will be a sequential cohort single dose-escalation are planned, Part B will be a parallel group randomized controlled study to evaluate a two dose, prime and boost regimen of APL-10456-Vaccine in 3 dose levels
Drug: APL-10456-Vaccine
3 cohorts are planned for Part A and Part B
Placebo Comparator: Placebo
Placebo is a comparator to Study Vaccine
Other: Placebo
Placebo (a saline) is comparator to study vaccine

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
To evaluate the safety and reactogenicity of APL-10456-Vaccine in healthy volunteers (HVs)
Time Frame: Through Study Completion (Approx 365 days)
Collecting AEs in Part A: HVs from 18 to 54 years of age, inclusive and Part B: HVs ≥ 55 years of age. Incidence, severity, relationship and outcome of Adverse Events (AE)
Through Study Completion (Approx 365 days)

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
To assess the immunogenicity of a single dose of APL-10456-Vaccine in Part A and B, and a prime/boost administration of APL-10456-Vaccine in Part B
Time Frame: Day 8 and Day 29 in Part A and approximately monthly visits up to Day 365 in Part B
serotype-specific anti-APL-10456 antibody (IgG) titers and seroconversion rates in serum samples
Day 8 and Day 29 in Part A and approximately monthly visits up to Day 365 in Part B

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.
Apollo Therapeutics Ltd

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.
February 16, 2026

Primary Completion (Estimated)

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.
May 18, 2027

Study Completion (Estimated)

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.
May 18, 2027

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 27, 2026

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 3, 2026

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 10, 2026

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.
May 27, 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.
May 22, 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.
May 1, 2026

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.
  • AP09CP01

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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