About this trial
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.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
The subject must sign the written informed consent form (ICF) voluntarily;
At enrollment, aged ≥ 18 to ≤ 75 years, both males and females are eligible;
ECOG performance status score of 0 or 1;
Has a life expectancy of ≥ 3 months;
Disqualifiers
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;
Concomitant participation in another clinical study, unless it is a non-interventional clinical study or the follow-up period of an interventional study;
Presence of active central nervous system (CNS) metastases.
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;
Trial design
Single group
Treatments tested in this trial
AK138D1
DrugEnrolled subjects will receive intravenous infusion (IV) of AK138D1 according to the dosing regimen specified in their cohort.
Treatment groups
Trial outcomes
Primary outcomes
AEs
Incidence and severity of participants with adverse events
Dose-limiting toxicity (DLT)
Occurrence of DLTs and determination fo maximum tolerated dose (MTD)
Secondary outcomes
Cmax and Cmin of AK138D1
AK138D1 serum drug concentrations in subjects at different time points after administration.
Anti-drug antibodies (ADA)
Number of subjects with detectable anti-drug antibodies (ADA).
Objective Response Rate (ORR) assessed by investigator per RECIST v1.1
ORR 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 v1.1
Disease control rate (DCR) assessed according to RECIST v1.1.