Testing 9MW2821 in patients with advanced solid tumors

Phase I/II Clinical Study of the Safety, Tolerability, Pharmacokinetics and Preliminary Antitumor Activity of 9MW2821 in Subjects With Advanced Malignant Solid Tumors

Phase1; Phase2 Interventional Mabwell (Shanghai) Bioscience Co., Ltd. · NCT05216965

This study is testing a new drug called 9MW2821 to see if it is safe and effective for people with advanced solid tumors.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Enrollment208 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorMabwell (Shanghai) Bioscience Co., Ltd. Industry-sponsored
Drugs / interventionsChemotherapy
Locations1 site (Shanghai, Shanghai)
Trial IDNCT05216965 on ClinicalTrials.gov

What this trial studies

This is a Phase 1/2 clinical study designed to evaluate the safety, tolerability, pharmacokinetics, and preliminary antitumor activity of 9MW2821 in patients with advanced malignant solid tumors. The study involves a dose-escalation and cohort expansion approach, where participants will receive the drug via intravenous infusion. The study aims to gather data on the drug's immunogenicity and its effects on tumor response, with a focus on patients who have specific tumor characteristics.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 to 80 with confirmed advanced malignant solid tumors and adequate organ function.

Not a fit: Patients with sarcomas or those who have received chemotherapy or radiotherapy within 21 days prior to the study may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced solid tumors.

How similar studies have performed: While this approach is novel, similar studies targeting advanced solid tumors have shown promise in the past.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Competent to comprehend, sign, and date an independent ethics committee/institutional review board/research ethics board (IEC/IRB/REB) approved informed consent form.
2. Male or female subjects aged 18 to 80 years (including 18 and 80 years).
3. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
4. Histologically or cytologically confirmed advanced malignant solid tumors (except sarcoma).
5. For Cohort Expansion: Subjects must submit tumor tissue for Nectin-4 expression.
6. Life expectancy of ≥ 3 months.
7. Subjects must have measurable disease according to RECIST (version 1.1).
8. Adequate organ functions.
9. Sexually active fertile subjects, and their partners, must agree to use methods of contraception during the study and at least 6 months after termination of study therapy.
10. Subjects are willing to follow study procedures.

Exclusion Criteria:

1. Chemotherapy or radiotherapy within 21 days prior to the first dose of study drug, or any other anticancer therapy within 14 days prior to the first dose of study drug.
2. Preexisting treatment related toxicity Grade ≥ 2 (except alopecia).
3. Major surgery within 28 days prior to first dose of study drug.
4. History of uncontrolled diabetes mellitus.
5. Preexisting peripheral neuropathy Grade ≥ 2.
6. Received treatment of nectin-4 targeted ADC with MMAE payload.
7. Any live vaccines within 4 weeks before first dose of study drug or during the study.
8. Documented history of clinically significant cardiac or cerebrovascular diseases within 6 months prior to the first dose of study drug.
9. Other severe or uncontrolled disease, i.e. severe respiratory system disease, thromboembolic events, active bleeding or active infection.
10. Uncontrolled central nervous system metastases.
11. History of another malignancy within 3 years before the first dose of study drug. Subjects with curable malignancies are allowed.
12. History of autoimmune disease requiring systemic treatment within 2 years before the first dose of study drug.
13. Has ocular conditions that may increase the risk of corneal epithelium damage.
14. Known sensitivity to any of the ingredients of the investigational product; History of drug abuse or mental illness.
15. Any P-glycoprotein (P-gp) inducers/inhibitors or CYP3A4 inducers/inhibitors within 14 days prior to the first dose of study drug
16. Use of any investigational drug or device within 2 months prior to the first dose of study drug.
17. Condition or situation which may put the subject at significant risk.

Where this trial is running

Shanghai, Shanghai

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 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.