A Study of AK146D1 for Injection in the Treatment of Advanced Solid Tumors

Phase 1

Recruiting

• Conditions: Advanced Solid Tumors
• Interventions: Drug: AK146D1 for injection

• Registration Number: NCT06929663
• Lead Sponsor: Akeso

Brief Summary

This is an first-in-human, Phase I clinical study aimed at evaluating the safety, tolerability, PK, immunogenicity, and preliminary antitumor efficacy of AK146D1 for injection in advanced solid tumors.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2025-03-16
• Study First Submitted QC: 2025-04-08
• Study First Posted: 2025-04-16
• Status Verified: 2025-07
• Study Start: 2025-07-02
• Last Update Submitted: 2025-07-14
• Last Update Posted: 2025-07-17
• Primary Completion: 2026-11-05
• Study Completion: 2027-05-05

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 48

Inclusion Criteria

1. Be able to understand and voluntarily sign the written informed consent form.
2. Aged of ≥ 18 years and ≤75 years.
3. ECOG PS 0 or 1.
4. The expected lifespan is ≥3 months.
5. Histologically-confirmed unresectable advanced solid tumors with disease progression or intolerance to standard treatment or no standard treatment available.
6. At least one measurable lesion according to RECIST v1.1.
7. Have sufficient organ function.
8. Females subjects must not be pregnant at screening or have evidence of non-childbearing potential. Agree to use medically accepted methods of contraception

Exclusion Criteria

1. Having other active malignancies within 3 years.
2. Currently participating in another interventional clinical study.
3. Presence of active metastases to the central nervous system. For patients with asymptomatic brain metastasis or stable symptoms after treatment can be included.
4. Having received any treatment targeting Trop2 or Nectin4 or any treatment with topoisomerase I inhibitor agents.
5. Having received systemic anti-tumor treatment within 4 weeks or 1 cycle interval of the regimen or major surgical operations within 4 weeks before the first administration.
6. Toxicity of previous antineoplastic therapy has not resolved to NCI CTCAE 5.0 grade 1 or lower.
7. Subjects with clinically significant cardiovascular or cerebrovascular diseases or risks.
8. Subjects with active autoimmune diseases requiring systemic treatment within 2 years.
9. Known active infection requiring antibodies treatment within 2 weeks, or severe infection within 4 weeks prior to the first dose.
10. Known to be positive for HIV and other infections.
11. Previous history of severe hypersensitivity reactions.
12. Live attenuated vaccines were received within 4 weeks.
13. Subjects with a history of mental illness and incapacitated or limited capacity.
14. Any disease or condition that, in the opinion of the investigator, would compromise subject safety or interfere with study assessments.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SEQUENTIAL

Arm && Interventions

Group	Intervention	Description
AK146D1 for injection	AK146D1 for injection	AK146D1 for injection will be administered in pre-specified dose levels

Primary Outcome Measures

Name	Time	Method
Number of participants with dose limiting toxicities (DLTs)	During the first 3 weeks of treatment.	DLTs are defined as toxicities that meet pre-defined severity criteria, and assessed as having a suspected relationship to study drug.
Number of participants with adverse events (AEs)	From the time of informed consent signed through 90 days after the last dose of study drug	AEs refer to any untoward medical occurrence or deterioration of existing medical events after the participants sign the ICFs, whether or not considered related to the study treatment.

Secondary Outcome Measures

Name	Time	Method
Serum PK concentration of AK146D1	From pre-dose to the end of the last dose, an average of 6 months.	Serum PK concentration of AK146D1 in participants after administration
Anti-drug antibodies (ADA)	From pre-dose to 90 days post end of treatment	The number and percentage of participants with detectable anti-drug antibodies (ADA)
Objective Response Rate (ORR) assessed by investigator per RECIST v1.1	Up to approximately 2 years	ORR is the proportion of participants with complete response(CR) or partial response(PR) , assessed based on RECIST v1.1.
Disease Control Rate (DCR) assessed per RECIST v1.1	Up to approximately 2 years	DCR is defined as the proportion of participants with CR, PR, or SD, assessed based on RECIST v1.1.
Duration of response (DoR) assessed by the investigator per RECIST v1.1	Up to approximately 2 years	DoR is defined as the duration from the first documentation of objective response to the first documented disease progression (based on RECIST Version 1.1) or death due to any cause, whichever occurs first.
Time to response (TTR) assessed by the investigator per RECIST v1.1	Up to approximately 2 years	TTR is defined as the time to objective response based on RECIST v1.1.
Progression Free Survival (PFS) assessed by investigator per RECIST v1.1	Up to approximately 2 years	PFS is defined as the time from the start of treatment until the first documentation of disease progression (based on RECIST Version 1.1) or death due to any cause, whichever occurs first.
Overall survival (OS)	Up to approximately 2 years	OS is defined as the time from the first dose to death from any cause.

Trial Locations

Locations (1)

Scientia Clinical Research; 🇦🇺 Sydney, New South Wales, Australia