A Phase I Study of AK138D1 in the Treatment of Advanced Solid Tumors

March 4, 2025 updated by: Akeso

A First-in-human, Phase I Study of Evaluating Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of AK138D1 in the Treatment of Advanced Solid Tumors

This is an open-label, first-in-human, Phase I clinical study aimed at evaluating the safety, tolerability, PK, immunogenicity, and preliminary antitumor efficacy of AK138D1 in subjects being treated for advanced solid tumors.

Study Overview

Status

Status

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

Detailed Description

This study is comprised of two parts: the dose-escalation and dose-expansion stages. Dose-escalation stage aims to determine the MTD/MAD, while the dose-expansion stage is designed to establish the RP2D.

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 (Estimated)

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.
100

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 Locations

  • Australia
    • New South Wales
      • Blacktown, New South Wales, Australia, 2148
        • Not yet recruiting
        • Blacktown Hospital-Blacktwon Cancer and Haematology Centre
        • Principal Investigator:
          • Adnan Nagrial, MD
        • Contact:
      • North Ryde, New South Wales, Australia, 2109
        • Not yet recruiting
        • Macquarie University
        • Contact:
        • Principal Investigator:
          • Andrew Parsonson, MD
    • Queensland
      • South Brisbane, Queensland, Australia, 4101
        • Recruiting
        • ICON Cancer Centre South Brisbane
        • Contact:
        • Principal Investigator:
          • Jermaine Coward, MD
    • Victoria
      • Frankston, Victoria, Australia, 3199
        • Recruiting
        • Peninsula & South Eastern Haematology and Oncology Group
        • Principal Investigator:
          • Vinod Ganju, MD
        • Contact:

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

No

Description

Inclusion Criteria:

  1. The subject must sign the written informed consent form (ICF) voluntarily;
  2. At enrollment, aged ≥ 18 to ≤ 75 years, both males and females are eligible;
  3. ECOG performance status score of 0 or 1;
  4. Has a life expectancy of ≥ 3 months;
  5. Subjects who have histologically or cytologically diagnosed locally advanced or metastatic solid tumor, which Is refractory to or intolerant to standard treatment;
  6. At least 1 measurable lesion as per RECIST v1.1 that is suitable for repeated accurate measurement.
  7. Adequate organ function.

Exclusion Criteria:

  1. Prior human epidermal growth factor receptor 3 (HER3) -targeted therapies, including antibodies, antibody-drug conjugates (ADCs), chimeric antigen receptor T-cell immunotherapy (CAR-T), and others;
  2. Concomitant participation in another clinical study, unless it is a non-interventional clinical study or the follow-up period of an interventional study;
  3. Presence of active central nervous system (CNS) metastases.
  4. Patients with a history of non-infectious pneumonitis requiring systemic corticosteroid therapy; a history of interstitial lung disease (ILD) (including pulmonary fibrosis or radiation pneumonitis); currently suffering from ILD/pneumonitis or suspected of having such diseases based on imaging during screening;
  5. Live vaccines or attenuated live vaccines administered within 4 weeks prior to the first dose, or planned to be administered during the study; use of inactivated vaccines is allowed;
  6. Untreated subjects with active hepatitis B (HBsAg positive and HBV-DNA exceeding 1000 copies/mL (200 IU/mL) and above the lower limit of detection). For HBsAg-positive subjects, anti-hepatitis B therapy is required during the study; subjects with active hepatitis C (HCV antibody positive and HCV-RNA levels above the lower limit of detection) is also an exclusion;
  7. Known active pulmonary tuberculosis (TB); subjects with suspected active TB must undergo appropriate clinical assessment to rule out the presence of active disease;
  8. Active syphilis infection;
  9. Subjects with known allergy to any component of any study drug; and with a history of known severe hypersensitivity reactions to other monoclonal antibodies;
  10. Other reasons for ineligibility as evaluated by the investigator.

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: 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: AK138D1
AK138D1 will be administered in pre-specified dose levels.
Drug: AK138D1
Enrolled subjects will receive intravenous infusion (IV) of AK138D1 according to the dosing regimen specified in their cohort.

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
AEs
Time Frame: Up to approximately 2 years
Incidence and severity of participants with adverse events
Up to approximately 2 years
Dose-limiting toxicity (DLT)
Time Frame: Up to approximately 2 years
Occurrence of DLTs and determination fo maximum tolerated dose (MTD)
Up to approximately 2 years

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
Cmax and Cmin of AK138D1
Time Frame: Up to approximately 2 years
AK138D1 serum drug concentrations in subjects at different time points after administration.
Up to approximately 2 years
Anti-drug antibodies (ADA)
Time Frame: Up to approximately 2 years
Number of subjects with detectable anti-drug antibodies (ADA).
Up to approximately 2 years
Objective Response Rate (ORR) assessed by investigator per RECIST v1.1
Time Frame: Up to approximately 2 years
ORR is the proportion of subjects with complete response(CR) or partial response(PR) , assessed by investigators based on RECIST v1.1.
Up to approximately 2 years
Disease Control Rate (DCR) assessed by investigator per RECIST v1.1
Time Frame: Up to approximately 2 years
Disease control rate (DCR) assessed according to RECIST v1.1.
Up to approximately 2 years
Duration of response (DoR) assessed by the investigator per RECIST v1.1
Time Frame: Up to approximately 2 years
Duration of response (DoR) assessed according to RECIST v1.1.
Up to approximately 2 years
Time to response (TTR) assessed by the investigator per RECIST v1.1
Time Frame: Up to approximately 2 years
Time to response (TTR) is defined as the time to response based on RECIST v1.1.
Up to approximately 2 years
Progression Free Survival (PFS) assessed by investigator per RECIST v1.1
Time Frame: Up to approximately 2 years
PFS is defined as the time from randomization to the first documented disease progression (per RECIST v1.1 criteria) assessed by investigators or death due to any cause, whichever occurs first.
Up to approximately 2 years
Overall Survival (OS)
Time Frame: Up to approximately 2 years
Overall Survival (OS) is defined as the time from randomization to death due to any cause.
Up to approximately 2 years

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.
Akeso

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 24, 2025

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.
February 26, 2028

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.
August 30, 2028

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).
December 9, 2024

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.
December 9, 2024

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.
December 12, 2024

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.
March 4, 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, 2025

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.
  • AK138D1-101

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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