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Gastric CancerPhase 1NCT04513223

A Phase 1 Study of SHR-A1811 in Patients With Selected HER2 Expressing Tumors

A Phase 1 study testing SHR-A1811 in people with Gastric Cancer and Colorectal Cancer, run by Jiangsu HengRui Medicine Co., Ltd. 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

This is a single arm, open-label, dose escalation, PK expansion and efficacy expansion study of phase I. The purpose of this study is to assess the tolerability, safety, pharmacokinetics and immunogenicity of SHR-A1811 and preliminary anti-tumor efficacy in HER2-expressing advanced gastric or gastroesophageal junction… Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Gastric Cancer, Colorectal Cancer
What is being tested?
SHR-A1811
Could I receive a placebo?
No, everyone receives an active treatment
How many people
101 participants
Where
1 siteChina
Study dates
30 Mar 2021to 28 Mar 2025
Phase
Phase 1
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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Has a pathologically or cytologically documented advanced/unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma and colorectal cancer that is refractory to or intolerable with standard treatment, or for which no standard treatment is available.
  • At least one evaluable or measurable lesion should be present and identified according to Response Evaluation Criteria in Solid Tumors(RECIST) version 1.1.
  • Has an ECOG PS 0-1.
  • Has a life expectancy of ≥ 3 months.
  • Has adequate organ function

Who cannot join

  • Has unresolved toxicities from previous anticancer therapy, defined as toxicities not yet resolved to NCI-CTCAE version 5.0 grade ≤ 1.
  • Has received HER2 antibody drug conjugates,.
  • Central nervous system metastasis or meningeal metastasis with clinical symptoms
  • Has active infection requiring systemic treatment.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Shanghai East Hospital

    Shanghai, Shanghai Municipality, Shanghai

Other trials in China

About this study

Official title: Safety, Tolerability, Pharmacokinetics, and Antitumour Activity of SHR-A1811, in Patients With HER2-expressing Advanced Gastric or Gastroesophageal Junction Adenocarcinoma and Colorectal Cancer: a Phase 1 Study

This is a single arm, open-label, dose escalation, PK expansion and efficacy expansion study of phase I. The purpose of this study is to assess the tolerability, safety, pharmacokinetics and immunogenicity of SHR-A1811 and preliminary anti-tumor efficacy in HER2-expressing advanced gastric or gastroesophageal junction adenocarcinoma and colorectal cancer.

Being tested
SHR-A1811
Medical subject headings
Stomach Neoplasms, Colorectal Neoplasms

What participants receive

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

  • SHR-A1811Drug

    There are six pre-defined dose regimens . Subjects will be enrolled with an initial dose

Study groups in NCT04513223
Study groupRoleWhat they receive
SHR-A1811ExperimentalNot described
Receives: Drug: SHR-A1811

What is being measured

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

  1. DLT and the recommended Phase 2 dose (RP2D)

    Measured: Subjects will be treated and observed for dose-limiting toxicity(DLT) through the end of the first cycle (Days 1-21).

Timeline

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

  1. First posted14 Aug 2020
  2. Study start30 Mar 2021
  3. Primary completion28 Mar 2025
  4. Study completion28 Mar 2025

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
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
101 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04513223
Sponsor's protocol ID
SHR-A1811-I-102
Status last verified
Feb 2026
First submitted
12 Aug 2020
Last updated
6 Feb 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Liu T, Luo S, Yuan X, Liu D, Zhou Z, Wang X, Deng Y, Chen J, Liu M, Zhou H, Ren X, Qiu W, Cao Y, Cai S, Dong Y, Zhang Y, Wang W, Liang J, Xu P, Liu H, Zhao K, Fan Y, Dou N, Huang C, Li J. Trastuzumab Rezetecan in Human Epidermal Growth Factor Receptor 2-Expressing Advanced Gastric Cancer or Gastroesophageal Junction Adenocarcinoma and Colorectal Cancer: A Multicenter, Open-Label, Phase I Trial. J Clin Oncol. 2026 May;44(13):1225-1237. doi: 10.1200/JCO-25-00716. Epub 2026 Mar 4.

    PubMed 41779980

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing SHR-A1811 in people with Gastric Cancer and Colorectal Cancer, run by Jiangsu HengRui Medicine Co., Ltd. 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 5 inclusion and 4 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 6 Feb 2026. 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 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.

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?

DLT and the recommended Phase 2 dose (RP2D) (time frame: Subjects will be treated and observed for dose-limiting toxicity(DLT) through the end of the first cycle (Days 1-21).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04513223, which also lists 1 linked publication.

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 6 Feb 2026.

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