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Advanced Solid TumorsPhase 1/2NCT06459973

A Clinical Study of YL205 in Patients With Advanced Solid Tumors

A Phase 1/2 study testing intravenous (IV) infusion in people with Advanced Solid Tumors, run by MediLink Therapeutics (Suzhou) Co., Ltd. at 43 sites in 2 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study is a multicenter, open-label, phase I/II study of YL205 in China to evaluate the safety, tolerability, PK characteristics and preliminary efficacy of YL205 in the following selected patients with advanced solid tumors. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Advanced Solid Tumors
What is being tested?
intravenous (IV) infusion
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
252 participants
Where
43 sitesin 2 countries
Study dates
4 Jun 2024to 31 Jul 2030
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 1) Subjects who are informed of relevant information of the study prior to initiation of the study and voluntarily sign and date on the informed consent form (ICF).
  • 2) Age ≥18 years. 3) Be willing to follow and be able to complete all the study procedures. 4) Body mass index (BMI) within the range of 18 to 32 kg/m2, and body weight ≥45kg for female subjects.
  • 5) Patients with histologically or cytologically confirmed locally advanced or metastatic ovarian cancer (OC), non-squamous non-small cell lung cancer (NSQ NSCLC), renal cell carcinoma (RCC), endometrial cancer (EC), or other Napi2b-overexpressing tumors。 6) Patients with positive Napi2b test results at the central laboratory. 9) At least one radiologically evaluable lesion for subjects in Part 1; At least one measurable extracranial lesion (non-radiation fields) for subjects in Part 2 and Part 3.
  • 10) Expected survival ≥3 months. 11) Female subjects of childbearing potential must agree to take effective contraceptive measures and must not undergo egg donation or egg retrieval for their own use from screening throughout the study period and for at least 6 months after the last dose of the investigational drug. Male subjects must agree to take effective contraceptive measures and must not undergo sperm cryopreservation or sperm donation from screening throughout the study period and for at least 6 months after the last dose of the investigational drug.
  • 12) subjects must provide tumor samples. 13) Subjects who are capable of and willing to comply with the visits and procedures stipulated in the study protocol.

Who cannot join

  • 1) Subjects with a treatment history with drugs targeting Napi2b. 2) Subjects with a history of intolerance to topoisomerase I inhibitors or ADC therapy.
  • 3) Subjects who are participating in another clinical study, with the exception an of observational (non-interventional) clinical study or the follow-up period of an interventional study.
  • 4) Subjects with an insufficient washout period from the previous anti-tumor therapy to the first dose.
  • 5) Subjects who received radiotherapy, including palliative stereotactic radiotherapy on the abdomen, within 4 weeks prior to the first dose.
  • 6) Subjects who received major surgery within 4 weeks prior to the first dose or those who plan to receive major surgery during the study.
  • 7) Subjects who received allogeneic bone marrow transplantation or solid organ transplantation.
Show all 18Show fewer
  • 8) Subjects who received systemic steroids or other immunosuppressive treatment within 2 weeks prior to the first dose of the investigational drug.
  • 9) Subjects who received any live vaccine within 4 weeks prior to the first dose or those who plan to receive live vaccines during the study.
  • 10) Subjects with a medical history of leptomeningeal carcinoma or cancerous meningitis.
  • 11) Subjects with brain metastasis or spinal cord compression. 12) Subjects with uncontrolled or clinically significant cardiovascular and cerebrovascular diseases.
  • 13) Subjects who were diagnosed with Gilbert's syndrome. 14) Subjects with significantly symptomatic or unstable effusion in the third space requiring repeated drainage.
  • 15) Subjects with medical history of gastrointestinal perforation and/or fistula within 6 months prior to the first dose, or active gastric ulcers, duodenal ulcer, colitis ulcerative, or other gastrointestinal disorders that may cause hemorrhage or perforation in the opinion of the investigator.
  • 16) Subjects with serious infection (Grade ≥3 as per NCI CTCAE v5.0) prior to the first dose.
  • 17) Subjects with human immunodeficiency virus (HIV), active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection; subjects with positive syphilis antibody and a positive titer result.
  • 18) Subjects with unresolved toxicity caused by previous anti-tumor therapy. 20) Subjects with a history of serious allergic reactions to drugs, inactive ingredients in drug products, or other monoclonal antibodies.
  • 21) Female subjects who are pregnant as confirmed by a pregnancy test within 3 days prior to the first dose, or lactating women.
  • 22) Subjects who have any diseases, medical conditions, organ system dysfunction, or social conditions.
  • 23) Subjects with multiple primary malignancies within 5 years prior to the signing of the ICF, except for fully resected non-melanoma skin cancer, radically treated carcinoma in situ, or other radically treated solid tumors.

Trial locations and contacts

43 sites in 2 countries. Contact the study team or a site near you to ask about taking part.

43 sites in 2 countries

China32 sites, 32 recruiting
  • Anyang Cancer Hospital

    Anyang, Henan

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Peking Union Medical College Hospital

    Beijing

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Jilin Provincial Cancer Hospital

    Changchun, Jilin

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Hunan Provincial Cancer Hospital

    Changsha, Hunan

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Xiangya Hospital of Central South University

    Changsha, Hunan

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • West China Second University Hospital, Sichuan University

    Chengdu, Sichuan

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Chinese People's Liberation Army Army Characterstic Medical Center

    Chongqing

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Chongqing Cancer Hospital

    Chongqing

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • The Southwest Hospital of AMU

    Chongqing

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Fujian Provincial Cancer Hospital

    Fuzhou, Fujian

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Sun Yat-Sen Memorial Hospital,Sun Yat-Sen University

    Guangzhou, Guangdong

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Hainan General Hospital

    Haikou, Hainan

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • The First Affiliated Hospital. Zhejiang University School of Medicine

    Hangzhou, Zhejiang

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Harbin Medical University Cancer Hospital

    Harbin, Heilongjiang

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Central Hospital Affiliated to Shandong First Medical University

    Jinan, Shandong

    Coordinator Clinical operation director, +86 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Qilu Hospital of Shandong University

    Jinan, Shandong

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Shandong Cancer Hospital

    Jinan, Shandong

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Jingzhou First People's Hospital

    Jingzhou, Hubei

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Yunnan Cancer Hospital

    Kunming, Yunnan

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Linyi Cancer Hospital

    Linyi, Shandong

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Guangxi Medical University Cancer Hospital

    Nanning, Guangxi

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Obstetrics & Gynecology Hospital of Fudan University

    Shanghai

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Liaoning Cancer Hospital

    Shenyang, Liaoning

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • The People's Hospital of Liaoning Province

    Shenyang, Liaoning

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • The Fourth Hospital of Hebei Medical University

    Shijiazhuang, Hebei

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Shanxi Cancer Hospital

    Taiyuan, Shanxi

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Hubei Cancer Hospital

    Wuhan, Hubei

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Tongji Medical College of Hust TongJi Hospital

    Wuhan, Hubei

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Union hospital Tongji Medical Colllege Huazhong University of School and Technology

    Wuhan, Hubei

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Zhongnan Hospital of Wuhan University

    Wuhan, Hubei

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • The First Affiliated Hospital of XI'AN Jiaotong University

    Xi’an, Shanxi

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting
  • Henan Cancer Hospital

    Zhengzhou, Henan

    Coordinator Clinical operation director, 0512-62858368, clinicaltrials@medilinkthera.com

    Recruiting

Other trials in China

United States11 sites, 11 recruiting
  • Southwest Women's Oncology

    Albuquerque, New Mexico, 87109

    Coordinator Clinical operation director, +1 505-843-7813, clinicaltrials@medilinkthera.com

    Recruiting
  • Sarah Cannon Research Institute (SCRI)- Denver

    Denver, Colorado, 80218

    Coordinator Clinical operation director, +1 615-329-7274, clinicaltrials@medilinkthera.com

    Recruiting
  • Florida Cancer Specialists - Lake Mary

    Lake Mary, Florida, 32746

    Coordinator Clinical operation director, +1 407-804-6133, clinicaltrials@medilinkthera.com

    Recruiting
  • Comprehensive Cancer Centers of Nevada (CCCN) - Central Valley

    Las Vegas, Nevada, 89169

    Coordinator Clinical operation director, +1 702-952-3400, clinicaltrials@medilinkthera.com

    Recruiting
  • Norton Cancer Institute

    Louisville, Kentucky, 40241

    Coordinator Clinical operation director, +1 502-899-3366, clinicaltrials@medilinkthera.com

    Recruiting
  • Sarah Cannon Research (SCRI)-Tennessee

    Nashville, Texas, 37203

    Coordinator Clinical operation director, +1 615-329-7274, clinicaltrials@medilinkthera.com

    Recruiting
  • Yale Cancer Center

    New Haven, Connecticut, 06510

    Coordinator Clinical operation director, +1 203-785-4095, clinicaltrials@medilinkthera.com

    Recruiting
  • Stephenson Cancer Center (Oklahoma)

    Oklahoma City, Oklahoma, 73104

    Coordinator Clinical operation director, +1 405-271-1112, clinicaltrials@medilinkthera.com

    Recruiting
  • Providence Cancer Institute - Franz Clinic

    Portland, Oregon, 97213

    Coordinator Clinical operation director, +1 503-215-5696, clinicaltrials@medilinkthera.com

    Recruiting
  • University of Washington

    Seattle, Washington, 98915

    Coordinator Clinical operation director, +1 206-543-2100, clinicaltrials@medilinkthera.com

    Recruiting
  • Washington University School of Medicine - Center for advanced Medicine

    St Louis, Missouri, 63110

    Coordinator Clinical operation director, +1 314-362-5000, clinicaltrials@medilinkthera.com

    Recruiting

Other trials in United States

About this study

Official title: A Multi-center, Open-label, Phase I/II Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetic Characteristics and Preliminary Efficacy of YL205 in Patients With Advanced Solid Tumors

This study is a multicenter, open-label, phase I/II study of YL205 in China to evaluate the safety, tolerability, PK characteristics and preliminary efficacy of YL205 in the following selected patients with advanced solid tumors.

Being tested
intravenous (IV) infusion

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • intravenous (IV) infusionDrug

    YL205 is provided in the form of lyophilized powder under a strength of 160 mg/vial. Each vial should be reconstituted to 20 mg/mL. Prior to IV infusionSubjects will be treated with YL205 via intravenous (IV) infusion, once every 3 weeks (Q3W) as a treatment cycle

Study groups in NCT06459973
Study groupRoleWhat they receive
Phase Ia: Dose escalation portionExperimentalYL205 is provided as the lyophilized powder, 160 mg/vial. Adcanced solid tumors patients will be given YL205 by intravenously once every 3 weeks (Q3W) as a cycle at several dose levels.
Receives: Drug: intravenous (IV) infusion
Phase Ib: Dose expansion portionExperimentalYL205 is provided as the lyophilized powder, 160 mg/vial. Adcanced solid tumors patients will be given YL205 by intravenously once every 3 weeks (Q3W) as a cycle at no less than two dose levels.
Receives: Drug: intravenous (IV) infusion
Phase II: Cohort expansion portionExperimentalYL205 is provided as the lyophilized powder, 160 mg/vial. Adcanced solid tumors patients will be given YL205 by intravenously once every 3 weeks (Q3W) as a cycle at RP2D.
Receives: Drug: intravenous (IV) infusion

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To evalue the DLTs

    Measured: Approximately within 36 months

  2. To evalue the TEAEs

    Treatment Emergent Adverse Event

    Measured: Approximately within 36 months

  3. To evalue the TRAEs

    Treatment Related Adverse Event

    Measured: Approximately within 36 months

  4. To evalue the serious adverse events (SAEs)

    Measured: Approximately within 36 months

  5. Determination of the MTD of YL205 in the pivotal clinical study

    Measured: Approximately within 36 months

  6. Determination of the RED of YL205 in the pivotal clinical study

    Measured: Approximately within 36 months

  7. Determination of the RP2D of YL205 in the pivotal clinical study

    Measured: Approximately within 36 months

  8. Assessed ORR (the proportion of CR and PR) by the investigator per RECIST v1.1

    Measured: Approximately within 36 months

Secondary outcomes (14)
  1. Characterize the PK parameter AUC

    area under curve (AUC)

    Measured: Approximately within 36 months

  2. Characterize the PK parameter Cmax

    maximum concentration (Cmax)

    Measured: Approximately within 36 months

  3. Characterize the PK parameter Ctrough

    minimum concentration at trough (Ctrough)

    Measured: Approximately within 36 months

  4. Characterize the PK parameter Vd

    volume of distribution (Vd)

    Measured: Approximately within 36 months

  5. Characterize the PK parameter CL

    plasma clearance (CL)

    Measured: Approximately within 36 months

  6. Characterize the PK parameter Tmax

    time to maximum concentration (Tmax)

    Measured: Approximately within 36 months

  7. Characterize the PK parameter t1/2

    half-life (t1/2)

    Measured: Approximately within 36 months

  8. Assessed the disease control rate (DCR) per RECIST v1.1

    (defined as the proportion of CR, PR, or stable disease (SD))

    Measured: Approximately within 36 months

  9. Assessed the duration of response (DOR) per RECIST v1.1

    Measured: Approximately within 36 months

  10. Assessed the time to response (TTR) per RECIST v1.1

    Measured: Approximately within 36 months

  11. Assessed the progression free survival (PFS) per RECIST v1.1

    Measured: Approximately within 36 months

  12. Assessed the depth of response (DpR) per RECIST v1.1

    the percentage change in target lesion size

    Measured: Approximately within 36 months

  13. Assessed the overall survival (OS) per RECIST v1.1

    Measured: Approximately within 36 months

  14. Evaluate the corelaton between different levels of Napi2B expression and the sum of CR rate, PR rate and SD rate

    Measured: Approximately within 36 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Jun 2024
  2. Study start4 Jun 2024
  3. Primary completion31 Jul 2027 (estimated)
  4. Study completion31 Jul 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
252 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06459973
Sponsor's protocol ID
YL205-CN-101-01
Status last verified
Dec 2025
First submitted
30 May 2024
Last updated
23 Dec 2025
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing intravenous (IV) infusion in people with Advanced Solid Tumors, run by MediLink Therapeutics (Suzhou) Co., Ltd. at 43 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 23 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 43 sites in China, United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To evalue the DLTs (time frame: Approximately within 36 months). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Dec 2025.

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