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An open-label, single-arm phase II clinical study evaluating the efficacy and safety of TST001 in the treatment of unresectable advanced or metastatic CLDN18.2-positive cholangiocarcinoma

An open-label, single-arm phase II clinical study evaluating the efficacy and safety of TST001 in the treatment of unresectable advanced or metastatic CLDN18.2-positive cholangiocarcinoma

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2100054990
Enrollment
Unknown
Registered
2021-12-30
Start date
2022-01-07
Completion date
Unknown
Last updated
2023-08-07

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

Conditions

Biliary Tract Neoplasms

Interventions

Experimental group:Drug: TST001

Sponsors

Zhongshan Hospital Affiliated to Fudan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Patients with unresectable advanced or metastatic cholangiocarcinoma confirmed by histology or cytology; 2. Failure to receive at least first-line treatment in the past (disease progression or intolerance); progression during neoadjuvant chemotherapy or adjuvant chemotherapy or within 6 months after completion can be considered a failure of first-line treatment; 3. The tumor tissue is positive for CLDN18.2; 4. Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1; 5. The expected survival period is at least 3 months; 6. According to the evaluation criteria for solid tumors (RECIST v1.1), the subject must have at least one measurable lesion; 7. Have sufficient organ and hematopoietic function.

Exclusion criteria

Exclusion criteria: 1. Complicated with other malignant tumors within 5 years before the first administration, except for adequately treated cervical carcinoma in situ, local squamous cell carcinoma of the skin, basal cell carcinoma, papillary thyroid carcinoma, breast ductal carcinoma in situ or <=T1N0M0 urothelial carcinoma, prostate cancer that does not require treatment (resection or unresection), etc., or the investigator believes that recurrence is unlikely or will not metastasize or cause death of the subject in this study ; 2. Untreated known central nervous system (CNS) metastases, or symptomatic CNS metastases; 3. The previous treatment meets one of the following conditions: major surgery within 4 weeks before the first dose; the interval between the first dose of extensive radiation therapy is <= 28 days, or the interval between the first dose of palliative local radiotherapy is <= 2 weeks; Received chemoembolization or radiofrequency ablation within 4 weeks before the first dose; Previous chemotherapy, anti-tumor biological therapy (tumor vaccines, cytokines, etc.), anti-tumor traditional Chinese medicine or targeted therapy interval <= 28 days or <= 5 half-lives (whichever is shorter) from the first administration of this study; 4. Subjects who have received anti-CLDN18.2 treatment (including CLDN18.2 monoclonal antibody, double antibody, antibody conjugated drug, cell therapy, etc.); 5. Severe cardiovascular and cerebrovascular diseases, including cerebrovascular accident, transient ischemic attack, myocardial infarction or unstable angina pectoris, occurred within 6 months before the first administration, New York Heart Association Class III or IV heart failure or uncontrolled arrhythmia; 6. It is known that the subjects have had severe allergic reactions to macromolecular protein preparations/monoclonal antibodies or known to any component of the test drug; 7. Subjects who are pregnant or breastfeeding.

Design outcomes

Primary

MeasureTime frame
Objective Response Rate (ORR);

Secondary

MeasureTime frame
Disease Control Rate (DCR);Duration of Disease Response (DOR);Time to Response (TTR);Progression Free Survival (PFS);Overall Survival (OS);Occurrence, Severity and Incidence of Various Adverse Events (AE);

Countries

China

Contacts

Public ContactFan Jia
fan.jia@zs-hospital.sh.cn+86 13601669720

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026