Evaluating the safety and effectiveness of ASD141 for advanced solid tumors

A Phase 1, First-in-Human, Open-label, Doseescalation Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of ASD141 in Subjects With Advanced Solid Tumors

PHASE1 · Ascendo Biotechnology Co., Ltd. · NCT06235437

This study is testing a new drug called ASD141 to see if it is safe and effective for people with advanced solid tumors.

Quick facts

PhasePHASE1
Study typeInterventional
Enrollment21 (estimated)
Ages18 Years and up
SexAll
SponsorAscendo Biotechnology Co., Ltd. (industry)
Drugs / interventionschemotherapy, radiation
Locations2 sites (Tainan and 1 other locations)
Trial IDNCT06235437 on ClinicalTrials.gov

What this trial studies

This Phase I study is designed to assess the safety, tolerability, pharmacokinetics, and preliminary efficacy of ASD141 in patients with metastatic solid tumors. It is a multicenter, first-in-human, open-label, non-randomized, dose escalation study that includes four dose cohorts. Participants will receive ASD141, and their responses will be monitored to determine the drug's potential anti-tumor activity and safety profile.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with histologically or cytologically confirmed metastatic solid tumors and measurable lesions.

Not a fit: Patients with solid tumors for which effective therapies are available 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 that currently have no effective therapies.

How similar studies have performed: While this approach is novel for ASD141, similar studies evaluating new treatments for advanced solid tumors have shown promise in the past.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subject has voluntarily agreed to participate by giving written informed consent.
* Male or female ≥ 18 years of age on the day of signing informed consent.
* Has a histologically or cytologically confirmed metastatic solid tumor for which there is no available therapy that is expected to convey clinical benefit.
* Has at least one measurable lesion by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.
* Subjects must have a performance status of ≤ 1 on the ECOG performance scale.
* Subjects must have adequate organ function as indicated by the following laboratory values. Hematological Neutrophil Count (ANC) ≥ 1,500 /µL (mm3) Platelets ≥ 100,000 /µL (mm3) Hemoglobin ≥ 9 g/dL Renal estimated GFR (non-indexed)\* ≥ 50 mL/min Hepatic Serum total bilirubin ≤ 1.5X ULN OR Direct bilirubin ≤ 1.5X ULN for subjects with total bilirubin levels \> 1.5 ULN; ≤ 3X ULN for subjects with hepatoma or Gilbert's disease AST and ALT ≤ 2.5X ULN OR ≤ 5X ULN for subjects with active liver metastases and primary hepatoma Coagulation International normalized ratio (INR) ≤ 1.5X ULN Activated partial thromboplastin time (aPTT) ≤ 1.5X ULN
* QTcF \< 480 msec
* Female subject of childbearing potential has a negative serum pregnancy test.
* Female subjects of childbearing potential and male subjects must be willing to use adequate contraceptive methods during the study treatment and for at least 90 days after the last dose of study treatment. Acceptable contraceptive methods include implants, injectables, combined oral contraceptives, intra-uterine devices (IUDs), sexual abstinence, diaphragm with spermicide, cervical cap with spermicide, male or female condom with spermicide or a partner who is sterile. Spermicides alone are not an acceptable method of contraception.
* Has provided a tumor tissue sample (latest archival or newly obtained core or excisional biopsy of a tumor lesion).

Exclusion Criteria:

* Has had curative radiotherapy, investigational or approved cancer therapy (e.g., chemotherapy, biologics, hormone \[e.g., tamoxifen, leuprolide\]) within 2 weeks or 5 halflives (whichever is shorter) prior to the first dose of study treatment.
* Has not recovered to Common Toxicity Criteria for Adverse Events (CTCAE) Grade 1 or better from the adverse events due to previous anti-cancer therapy prior to the first dose of study treatment, with the exception of alopecia and ≤ Grade 2 peripheral neuropathy.
* Has used an investigational device or has had major surgery within 4 weeks prior to the first dose of study treatment.
* Has received previous treatment with another agent targeting the CD11b receptor.
* Is expected to require any other forms of antineoplastic therapy while participating in the study.
* Is on chronic systemic steroid therapy in excess of replacement doses or on any other form of immunosuppressive medication.
* Has a history of a previous additional malignancy unless potentially curative treatment has been completed with no evidence of malignancy for at least 2 years prior to the first dose of study treatment. Subjects with carcinoma in situ of any origin are eligible.
* Has active central nervous system (CNS) metastases and/or carcinomatous meningitis.

Subjects with CNS metastases are eligible if they are asymptomatic (including those who have never received any treatment) and not requiring concurrent treatment, including but not limited to surgery, radiation, corticosteroids and/or anticonvulsants to treat CNS metastases.

* Has an active autoimmune disease.
* Has an acute active infection requiring systemic treatment.
* Has interstitial lung disease.
* Has active or a history of non-infectious pneumonitis requiring steroids.
* Has symptomatic ascites or pleural effusion.
* Has previously had a hematopoietic stem cell transplant or solid organ transplant.
* Is known to have active chronic or acute Hepatitis B; however, subjects with HBV DNA

  ≤ 2000 IU/mL with or without antiviral therapy are eligible.
* Has received a live-virus vaccine within 4 weeks prior to the first dose of study treatment.
* Has received an mRNA vaccine within 4 months prior to the first dose of study treatment.
* Has any of the following condition within 3 months of the first dose of study treatment:

deep vein thrombosis, pulmonary embolism, myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass graft, congestive heart failure, or cerebrovascular accident including transient ischemic attack.

* Has a history of allergic reactions to any of the components of ASD141 Injection (i.e., sodium citrate, sucrose, and polysorbate 80).
* Has a history of severe hypersensitivity or anaphylactic reactions (e.g., shock, asthma etc.).
* Is pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the study.
* Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the subject's participation for the full duration of the study, or is not in the best interest of the subject to participate, in the opinion of the treating Investigator.

Where this trial is running

Tainan and 1 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.

View on ClinicalTrials.gov →

Conditions: Metastatic Solid Tumor

Last reviewed 2026-05-15 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.