Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 to 75

Evaluating SHR-1681 for patients with advanced solid tumors

Official title: A Phase I/II, Multicenter, Open-Label Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Efficacy of SHR-1681 for Injection in Patients With Malignant Solid Tumors

Run by Suzhou Suncadia Biopharmaceuticals Co., Ltd. · NCT06737731 · Data updated 2026-11-12

This study is testing a new injection called SHR-1681 to see if it can safely help people with advanced solid tumors that haven't responded to other treatments.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment300 (estimated)
SponsorSuzhou Suncadia Biopharmaceuticals Co., Ltd.
Industry-sponsored
Locations1 site (Shanghai, Shanghai Municipality)
StatusRecruiting
StartedJanuary 21, 2025
Main results expectedNovember 2026
Study endsJuly 2027
Registry record updatedJanuary 9, 2026
Trial IDNCT06737731 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults with histologically or cytologically confirmed unresectable locally advanced or metastatic solid tumors that are relapsed or refractory to standard treatment.

Probably not a fit

Patients with active central nervous system metastases, serious cardiovascular or cerebrovascular diseases, or those who have had recent anti-tumor therapies may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an open-label, multicenter Phase I/II clinical trial designed to assess the safety, tolerability, pharmacokinetics, and efficacy of SHR-1681 for injection in patients suffering from advanced solid tumors. The study will enroll participants with unresectable locally advanced or metastatic solid tumors that have either relapsed, are refractory to standard treatments, or for which no standard treatment is applicable. Participants will be monitored for measurable tumor lesions and must meet specific health criteria to ensure their eligibility.

Why it matters

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

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

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Subjects must voluntarily agree to participate in the trial and sign a written informed consent form;
2. Subjects with histologically or cytologically confirmed unresectable locally advanced or metastatic solid tumors which is relapsed or refractory to standard treatment, or lack of standard treatment, or standard treatment is not applicable currently;
3. Have at least one measurable tumor lesion per RECIST v1.1;
4. ECOG performance score of 0-1;
5. Life expectancy ≥ 3 months;
6. Adequate bone marrow and organ function.

Exclusion Criteria:

1. Subjects with active central nervous system metastases or meningeal metastases;
2. History of serious cardiovascular and cerebrovascular diseases;
3. Subjects with a history of interstitial pneumonitis or imaging at screening suggestive of suspected interstitial pneumonitis;
4. Severe infection within 4 weeks prior to the first dose;
5. Ongoing or previous anti-tumor therapies within 4 weeks prior to the first dose of study drug;
6. Adverse reactions of previous anti-tumor treatment have not recovered to Grade ≤ 1 per NCI-CTCAE v5.0.

Where it's running

  • Shanghai Dongfang Hospital
    Shanghai, Shanghai Municipality, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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  • TAK-505 treatment for adults with advanced solid tumors

    This trial will test TAK-505, an experimental drug, in adults with locally advanced or metastatic solid tumors (such as stomach, colorectal, non-small cell lung, and head and neck cancers) who have limited standard treatment options.

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  • SHR-7787 combined with other anti-cancer drugs for malignant solid tumors

    This study will test whether giving SHR-7787 together with other anti-cancer medicines is safe and helps people with unresectable malignant solid tumors.

    Recruiting at 2 sites Phase 2 Shanghai Hengrui Pharmaceutical Co., Ltd. · Wuhan, Hubei and 1 other locations · NCT07268040

  • SHR-4298 Injection for Malignant Solid Tumors: a Phase I/II study

    This study tests SHR-4298 injections in adults with advanced solid tumors to see if it is safe, tolerable, and has signs of activity.

    Recruiting Phase 1/2 Suzhou Suncadia Biopharmaceuticals Co., Ltd. · Guangzhou, Guangdong · NCT07229612

  • SHR-4849 combined with other cancer drugs for malignant solid tumors

    This study will test whether adding SHR-4849 to other cancer drugs is safe and can help adults with malignant solid tumors.

    Recruiting Phase 2 Suzhou Suncadia Biopharmaceuticals Co., Ltd. · Jinan, Shandong · NCT07028281

  • JCXH-211 injections with anti-PD-1 therapy for malignant solid tumors

    This study tests whether injecting JCXH-211 directly into tumors, together with an anti-PD-1 medicine, is safe and tolerable in adults with malignant solid tumors.

    Recruiting Phase 1/2 Immorna Biotherapeutics, Inc. · Guangzhou, Guangdong · NCT06781125

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.