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

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

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06730386
Enrollment
100
Registered
2024-12-12
Start date
2025-02-24
Completion date
2028-08-30
Last updated
2025-03-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Solid Cancer

Brief summary

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.

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.

Interventions

Enrolled subjects will receive intravenous infusion (IV) of AK138D1 according to the dosing regimen specified in their cohort.

Sponsors

Akeso
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
AEsUp to approximately 2 yearsIncidence and severity of participants with adverse events
Dose-limiting toxicity (DLT)Up to approximately 2 yearsOccurrence of DLTs and determination fo maximum tolerated dose (MTD)

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR) assessed by investigator per RECIST v1.1Up to approximately 2 yearsORR is the proportion of subjects with complete response(CR) or partial response(PR) , assessed by investigators based on RECIST v1.1.
Disease Control Rate (DCR) assessed by investigator per RECIST v1.1Up to approximately 2 yearsDisease control rate (DCR) assessed according to RECIST v1.1.
Duration of response (DoR) assessed by the investigator per RECIST v1.1Up to approximately 2 yearsDuration of response (DoR) assessed according to RECIST v1.1.
Cmax and Cmin of AK138D1Up to approximately 2 yearsAK138D1 serum drug concentrations in subjects at different time points after administration.
Progression Free Survival (PFS) assessed by investigator per RECIST v1.1Up to approximately 2 yearsPFS 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.
Overall Survival (OS)Up to approximately 2 yearsOverall Survival (OS) is defined as the time from randomization to death due to any cause.
Time to response (TTR) assessed by the investigator per RECIST v1.1Up to approximately 2 yearsTime to response (TTR) is defined as the time to response based on RECIST v1.1.
Anti-drug antibodies (ADA)Up to approximately 2 yearsNumber of subjects with detectable anti-drug antibodies (ADA).

Countries

Australia

Contacts

Primary ContactWenting Li, MD
wenting01.li@akesobio.com+86-18116403289

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026