Evaluating YL211 for patients with advanced solid tumors

A Phase 1, Multicenter, Open-Label, First-in-Human Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of YL211 in Patients With Advanced Solid Tumors

Phase 1 Interventional MediLink Therapeutics (Suzhou) Co., Ltd. · NCT06384352

This study is testing a new treatment called YL211 to see if it is safe and effective for people with advanced solid tumors.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment155 (estimated)
Ages18 Years and up
SexAll
SponsorMediLink Therapeutics (Suzhou) Co., Ltd. Industry-sponsored
Locations21 sites (Aurora, Colorado and 20 other locations)
Trial IDNCT06384352 on ClinicalTrials.gov

What this trial studies

This multicenter, open-label Phase 1 study aims to assess the safety, tolerability, pharmacokinetics, and efficacy of YL211 in patients with advanced solid tumors. The study is divided into three parts: the first part focuses on dose escalation to determine the maximum tolerated dose (MTD) and recommended dose (RED), the second part involves backfill enrollment to further evaluate safety and efficacy, and the third part is a dose-expansion phase to confirm findings at the MTD/RED. YL211 will be administered intravenously until treatment discontinuation criteria are met.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with advanced solid tumors that have not responded to existing treatments.

Not a fit: Patients with uncontrolled cardiovascular or pulmonary diseases may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new treatment option for patients with advanced solid tumors who have exhausted standard therapies.

How similar studies have performed: Other studies have shown promise with similar investigational therapies, but this specific approach is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Informed of the trial before the start of the trial and voluntarily sign their name and date on the ICF.
2. Aged ≥18 years.
3. Be able and willing to comply with protocol visits and procedures.
4. History of an advanced solid tumors who failed currently available standard therapies and are not amenable to surgical resection, or for whom no available standard therapy or no other approved therapeutic options that have demonstrated clinical benefit.
5. Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 or 1.
6. Adequate organ and bone marrow function.
7. Have at least 1 extracranial measurable tumor lesion according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.

Exclusion Criteria:

1. Inadequate washout period for prior anticancer treatment before the first dose of study drug.
2. Uncontrolled or clinically significant cardiovascular and cerebrovascular diseases.
3. Clinically significant concomitant pulmonary disease.
4. Uncontrolled infection that requires systemic therapy within 2 weeks before the first dose.
5. Unresolved toxicities from previous anticancer therapy.
6. A history of severe hypersensitivity reactions to the drug substances, inactive ingredients in the drug product, or other monoclonal antibodies.

Where this trial is running

Aurora, Colorado and 20 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Advanced Solid Tumors
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.