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Biliary Tract NeoplasmsPhase 2NCT05190575

TST001 in Patients With CLDN18.2 Positive Previously Treated Advanced Biliary Tract Cancer

A Phase 2 study testing TST001 in people with Biliary Tract Neoplasms, run by Shanghai Zhongshan Hospital at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

TST001 is a recombinant humanized anti-Claudin 18.2 (CLDN18.2) IgG1 monoclonal antibody. This is an open-label, single-arm phase II study to evaluate the efficacy and safety of TST001 for patients with CLDN18.2 positive previously treated unresectable advanced or metastatic Biliary Tract Cancer. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Biliary Tract Neoplasms
What is being tested?
TST001
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
1 siteChina
Study dates
14 Jan 2022to 6 May 2023
Phase
Phase 2
Are there results?
None posted in the registry

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

  • Histologically confirmed, unresectable advanced or metastatic biliary tract cancer.
  • Patients failed at least one prior line of systemic medications; if patients had disease progression during or within 6 months after the completion of adjuvant therapy or neoadjuvant therapy, the adjuvant therapy or neoadjuvant therapy could be regarded as one line of therapy.
  • CLDN18.2 expression positive confirmed through tumor tissue.
  • Patients with at least one measurable disease according to RECISTv1.1.
  • ECOG PS of 0 or 1.
  • Patients have predicted life expectancy ≥ 12 weeks.
  • Paitients with adequate cardica, liver, renal function, etc.

Who cannot join

  • • History of another concurrent primary malignancy.
  • Untreated or symptomatic CNS metastases.
  • Prior treatment targeting CLDN18.2.
  • Major surgical procedure, prior locoregional therapy such as radioembolization within 28 days prior to the first dose of study drug.
  • Prior serious hypersensitivity to monoclonal antibody or any component of the investigational drug.
  • Patients had any of the following within 6 months prior to first dose of study treatment: cerebrovascular accident, transient ischemic attack, myocardial infarction or unstable angina pectoris, heart failure NYHA III or IV degree, or uncontolled uarrhythmia requiring intervention.
  • Patients who are pregnant or lactating.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Zhongshan hospital

    Shanghai, 200032

Other trials in China

About this study

Official title: An Open-label, Single-arm Phase II Study to Evaluate the Efficacy and Safety of TST001 for Patients With CLDN18.2 Positive Previously Treated Unresectable Advanced or Metastatic Biliary Tract Cancer

TST001 is a recombinant humanized anti-Claudin 18.2 (CLDN18.2) IgG1 monoclonal antibody. This is an open-label, single-arm phase II study to evaluate the efficacy and safety of TST001 for patients with CLDN18.2 positive previously treated unresectable advanced or metastatic Biliary Tract Cancer.

Read the detailed description

TST001 is a recombinant humanized anti-Claudin 18.2 (CLDN18.2) IgG1 monoclonal antibody. Claudin18.2 (CLDN18.2) protein is one of the family of tetraspanning proteins expressed at epithelial tight junctions and primarily expressed only in normal gastric tissues . CLDN18.2 protein is a pancancer target expressed in primary lesions and metastases of variouscancer types, including gastric cancer, biliary tract cancer and others. Current available information indicates that CLDN18.2 is a promising therapeutic target for the treatment of solid tumors.

This is an open-label, single-arm phase II study to evaluate the efficacy and safety of TST001 for patients with CLDN18.2 positive previously treated unresectable advanced or metastatic Biliary Tract Cancer. Eligible patients will be treated with TST001 until disease progression or other discontinuation criteria met. If there is ≥ one objective response among the first 15 enrolled patients, then the trial continues to enroll a total of 40 patients; if not, then the trial discontinues.

Being tested
TST001
Medical subject headings
Biliary Tract Neoplasms

What participants receive

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

  • TST001Drug

    TST001 IV infusion every 3 weeks until disease progression or other discontinuation criteria.

Study groups in NCT05190575
Study groupRoleWhat they receive
TST001ExperimentalDrug: TST001 IV infusion every 3 weeks until disease progression or other discontinuation criteria.
Receives: Drug: TST001

What is being measured

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

  1. ORR

    ORR according to RECIST 1.1 using investigator assessment

    Measured: 18 months

Secondary outcomes (5)
  1. PFS

    PFS accorridng RECSIST1.1 using investigator assessment

    Measured: 18 months

  2. Overall survival

    Time from enrollment to death of any cause

    Measured: 18 months

  3. DoR

    DoR accroding to RECSIST1.1 using investigator assessment

    Measured: 18 months

  4. DCR

    Patients who were assessed as partial response, complete response or stable disease

    Measured: 18 months

  5. Safety & tolerability

    Adverse events will be graded according to NCI-CTC AE v5.0

    Measured: 18 months

Timeline

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

  1. First posted13 Jan 2022
  2. Study start14 Jan 2022
  3. Primary completion6 May 2023
  4. Study completion6 May 2023

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05190575
Sponsor's protocol ID
BTC-II-CLDN18.2-TST001
Status last verified
Dec 2021
First submitted
28 Dec 2021
Last updated
27 Jul 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing TST001 in people with Biliary Tract Neoplasms, run by Shanghai Zhongshan Hospital at 1 site in China.

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 7 inclusion and 7 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: finished, as of the sponsor's last update on 27 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. 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 phase mean?

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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

ORR (time frame: 18 months). 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 27 Jul 2023.

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