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A Study YL201 in Patients With Selected Advanced Solid Tumors

A Multicenter, Open-Label, Phase 1/2 Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of YL201 in Patients With Selected Advanced Solid Tumors

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06057922
Enrollment
990
Registered
2023-09-28
Start date
2023-09-22
Completion date
2028-10-01
Last updated
2026-03-12

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

Conditions

Advanced Solid Tumor

Keywords

Antibody-drug conjugate

Brief summary

This is A Multicenter, Open-Label, Phase 1/2 Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of YL201 in Patients with Selected Advanced Solid Tumors. The study will include 2 parts: Phase 1 dose expansion stage (Part 1) followed by a Phase 2 stage with expanded sample size (Part 2). Part 1 will estimate the RP2D in dose expansion cohorts of patients with not linited to non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), nasopharyngeal carcinoma (NPC), esophageal squamous cell carcinoma (ESCC), metastatic castration-resistant prostate cancer (mCRPC), head and neck squamous cell carcinoma (HNSCC), sarcoma, ductal adenocarcinoma of pancreas (PDAC), hepatocellular carcinoma (HCC), biliary tract cancer (BTC), etc.. Part 2 will include patients with selected advanced solid tumor types enrolled at the RP2D to further assess the efficacy and safety of YL201.

Interventions

Patients will be treated with YL201 intravenous (IV) infusion once every 3 weeks (Q3W) as a cycle; and at dose levels of 1.0 mg/kg and 1.2 mg/kg administered on Days 1 and 8 of each Q3W treatment cycle.

Sponsors

MediLink Therapeutics (Suzhou) Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Informed of the trial before the start of the trial and voluntarily sign their name and date on the ICF. * Age ≥18 years old and ≤75 years old * Histologically or cytologically confirmed at diagnosis of NSCLC/SCLC/NPC/ESCC /mCRPC/HNSCC/Sarcoma/PDAC/HCC/BTC * At least one extracranial measurable lesion according to RECIST 1.1. * Archived or fresh tumor tissue samples can be provided. * Eastern Cooperative Oncology Group - performance scale (ECOG PS) score of 0 or 1. * Female subjects with fertility must agree to take high-efficiency contraceptive measures from screening to whole study period and within at least 6 months after last administration of investigational drug. Male subjects must agree to take high-efficiency contraceptive measures from screening to whole study period and within at least 6 months after last administration of investigational drug. * Life expectancy ≥3 months. * Capable or willing to observe the visits and procedures stipulated in study protocol.

Exclusion criteria

* Prior treatment with products targeting B7H3 (including antibodies, antibody-drug conjugate \[ADC\], chimeric antigen receptor T cells \[CAR-T\], and other drugs). * Prior treatment with topoisomerase 1 inhibitors or ADC based on topoisomerase 1 inhibitors. * Participation in another clinical trial meanwhile, except observatory (non-interventional) clinical trial or at follow-up period of interventional study. * Washout period of previous anticancer treatment was insufficient before first administration of investigational drug. * Major surgery (excluding diagnostic surgery) within 4 weeks before first administration of investigational drug or likely to require major surgery during the study. * History of allogenic bone marrow transplantation or solid organ transplantation. * Treatment with systemic steroid (Prednisone \>10 mg/d or equivalent drugs) or other immunosuppressive drugs within 2 weeks before first administration of investigational drug. * Live vaccination within 4 weeks before first administration of investigational drug or likely to require live vaccine inoculation during the study. * Evidence of leptomeningeal metastasis or carcinomatous meningitis. * Evidence of brain metastasis or spinal cord compression. * Evidence of cardiovascular disease with uncontrolled state or clinical significance. * Clinically significant concomitant lung disease. * Diagnosed as Gilbert syndrome. * Complicated with uncontrolled third-space effusion . * History of gastrointestinal perforation and/or fistula within 6 months before first administration. * History of serious infection (Grade ≥3 of NCI CTCAE) before first administration. * Known as infection with human immunodeficiency virus (HIV). * Active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). * History of any other primary malignant tumor within 5 years before first administration of investigational drug. * The toxicity of previous anticancer treatment is not resolved. * History of serious hypersensitive reactions to drug substance, inactive compositions of preparations or other monoclonal antibodies. * Breastfeeding women. Or women confirmed as pregnant through pregnancy test within 3 days before first administration. * Any disease, medical state, organ/system dysfunction or social state considered by investigators as possibly interfering the subject's capability for ICF signing, producing adverse influence on the subject's capability for cooperation and study participation or influencing the interpretation of study results. Including but not limited to mental disease or substance/alcohol abuse.

Design outcomes

Primary

MeasureTime frameDescription
Evaluate the AEs as characterized by type, frequency, severity, timing, seriousness and relationship to study treatmentBy the global end of trial date, approximately within 36 months
Evaluate the objective response rate (ORR) for patients with solid tumors which assessed using RECIST version 1.1Time Frame: Approximately within 36 monthsORR: defined as the proportion of patients who achieved a best overall response of complete response (CR) or partial response (PR).
Evaluate the prostate-specific antigen (PSA) response rate for patients with prostate cancerTime Frame: Approximately within 36 monthsPSA response rate: defined as the proportion of patients who achieved a ≥50% decrease in PSA from baseline

Secondary

MeasureTime frameDescription
Characterize the PK parameter AUCApproximately within 36 months
Characterize the PK parameter CmaxApproximately within 36 months
Characterize the PK parameter CtroughApproximately within 36 months
Characterize the PK parameter CLApproximately within 36 months
Characterize the PK parameter VdApproximately within 36 months
Characterize the PK parameter t1/2Approximately within 36 months
Assess the incidence of anti-YL201 antibodiesApproximately within 36 months
Evaluate the disease control rate (DCR) for patients assessed using RECIST version 1.1DCR: defined as the proportion of patients who achieved a best overall response of CR, PR or stable disease (SD).Approximately within 36 months
Evaluate the duration of response (DoR) for patients assessed using RECIST version 1.1DoR: defined as the time interval from the date of the first documentation of objective response (CR or PR) to the date of the first documentation of PD. DoR will be assessed for patients with a response (CR or PR) only.Approximately within 36 months
Evaluate the time to response (TTR) for patients assessed using RECIST version 1.1Approximately within 36 monthsTTR: defined as the time interval from the date of the first dose of study drug to the date of the first documentation of objective response (CR or PR).
Evaluate the progression-free survival (PFS) for patients assessed using RECIST version 1.1Approximately within 36 monthsPFS: defined as the time interval from the date of the first dose of study drug to the date of first documentation of PD or death due to any cause, whichever occurs first.
Evaluate the overall survival (OS) for patientsApproximately within 36 monthsOS: defined as the time interval from the date of the first dose of study drug to the date of death due to any cause.
Evaluate the radiographic progression-free survival (rPFS) for patients with prostate cancerApproximately within 36 months
Evaluate the time to PSA progression (TTPP) for patients with prostate cancerApproximately within 36 monthsDefined as the time from the first investigational drug administration to the first recording of PSA progression.
Evaluate the PSA duration of response (PDoR) for patients with prostate cancerApproximately within 36 monthsDefined as the time from PSA reduction of ≥50% compared with baseline to PSA progression.
Evaluate the best PSA response for patients with prostate cancerApproximately within 36 monthsDefined as the maximum percentage of PSA changes at any time during the study.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 11, 2026