ClinicalTrials.gg
Not yet recruitingNCT07828873Updated Sep 18, 2026

A Single-Arm Study of QL1706 Combined With DOS as Neoadjuvant Therapy for Locally Advanced Gastric/GEJ Adenocarcinoma

A Phase 2 interventional study of Iparomlimab and Tuvonralimab Injection (QL1706) and Docetaxel in Locally Advanced Gastric or Gastroesophageal Junction Adenocarcinoma, sponsored by The First Affiliated Hospital of Zhengzhou University. Not yet recruiting at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-18.

Sponsored by The First Affiliated Hospital of Zhengzhou University · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
34
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is an open-label, prospective, interventional study designed to enroll 34 patients with locally advanced gastric or gastroesophageal junction adenocarcinoma, aiming to evaluate and observe the efficacy and safety of QL1706 in combination with DOS for the treatment of locally advanced gastric or gastroesophageal junction adenocarcinoma. Enrolled patients will receive iparomlimab and tuvonralimab in combination with the DOS regimen (docetaxel + oxaliplatin + S-1) administered in 21-day treatment cycles. Subjects who complete 3-4 cycles of treatment and are deemed suitable for surgery will undergo gastrectomy, with the specific interval between neoadjuvant therapy and surgery determined by the investigator based on actual clinical circumstances. Following surgery, clinicians will administer postoperative treatment according to the postoperative pathological assessment results and the clinical practice treatment principles of the study center. The primary endpoint is the pathological complete response rate assessed by postoperative pathological evaluation.

02

Conditions studied

  • Locally Advanced Gastric or Gastroesophageal Junction Adenocarcinoma

Keywords

  • Iparomlimab/Tovonralimab Combination Antibody
  • Gastric Adenocarcinoma
  • Gastroesophageal Junction Adenocarcinoma
  • DOS Regimen
03

In context

Lead sponsor

The First Affiliated Hospital of Zhengzhou University is the lead sponsor of 126 studies on the registry; 73 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Aged 18 to 75 years; male or female.
  2. Previously untreated, resectable adenocarcinoma of the stomach or gastroesophageal junction (GEJ).
  3. Clinical stage cT3-4a/N+ M0.
  4. performance status 0-1.
  5. Adequate organ function within 7 days prior to treatment, meeting the following criteria: (1) Complete blood count (CBC) criteria (without blood transfusion within 14 days): (Hb) ≥ 90 g/L; (ANC) ≥ 1.5 × 10⁹/L; count (PLT) ≥ 80 × 10⁹/L; (2) Serum chemistry criteria: Total (TBIL) ≤ 1.5 × (ULN); (ALT) and aspartate aminotransferase (AST) ≤ 2.5 × ULN; Serum creatinine (Cr) ≤ 1.5 × ULN or (CCr) ≥ 60 mL/min; (3) Doppler echocardiography: (LVEF) ≥ lower limit of normal (50%). (4) Thyroid function: thyroid-stimulating hormone (TSH) ≤ upper limit of normal (ULN).
  6. Participants of must agree to use effective during the study period and for 6 months after study completion.
  7. The participant voluntarily agrees to participate in this study and signs the form.

Exclusion criteria

Exclusion Criteria:

  1. Known history of or allergy to QL1706 or its , tegafur/gimeracil/oteracil (S-1), oxaliplatin, docetaxel, or any of their excipients.
  2. History of another within 5 years prior to screening or concurrent malignancy, except for curatively treated carcinoma in situ of the cervix, non-melanoma skin cancer, and superficial bladder tumors.
  3. Patients with distant and/or unresectable disease;
  4. Prior treatment with , including anti-PD-1, anti-PD-L1, and anti-CTLA-4 agents.
  5. Receipt of any antineoplastic agents within 4 weeks prior to the first dose of study drug.
  6. Patients with gastrointestinal disorders such as intestinal obstruction (including partial obstruction), or those with evidence or risk of gastrointestinal bleeding, perforation, or obstruction.
  7. Any bleeding event ≥ Grade 3 within 4 weeks prior to enrollment, or unhealed wounds, ulcers, or fractures.
  8. Concurrent enrollment in another clinical study, unless it is an observational (non-interventional) study or the follow-up phase of an interventional study.
  9. Subjects requiring systemic therapy with (>10 mg/day prednisone or equivalent) or other agents within 2 weeks prior to the first dose of study drug.
  10. Receipt of live or within 4 weeks prior to the first dose of study drug.
  11. Major surgery or significant trauma within 4 weeks prior to the first dose of study drug.
  12. Active or history of disease, with the exception of vitiligo or resolved childhood asthma/atopy that requires no intervention in adulthood.
  13. History of immunodeficiency, including infection, or other acquired or congenital immunodeficiency disorders, or history of organ transplantation or bone marrow transplantation.
  14. Subjects with inadequately controlled cardiovascular clinical symptoms or diseases.
  15. Severe infection (CTCAE Grade > 2) within 4 weeks prior to the first dose of study drug.
  16. Patients with a history of interstitial lung disease (except for radiation pneumonitis not treated with corticosteroids), non-infectious pneumonitis, or active pulmonary tuberculosis; or a history of active pulmonary tuberculosis within 1 year prior to enrollment, or more than 1 year prior to enrollment if not adequately treated.
  17. Pregnant or breastfeeding women.
  18. Other concomitant diseases that, in the opinion of the Investigator, pose a serious risk to the subject's safety or may interfere with the subject's ability to complete the study.
Terms in these criteria, in plain language(24)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
34 participants (estimated)

Study arms

  • Experimental
    Iparomlimab and Tuvonralimab Injection (QL1706) Plus DOS Neoadjuvant Therapy Arm

    Enrolled patients receive QL1706 (5 mg/kg, IV, D1) combined with the DOS regimen (docetaxel 40 mg/m², IV, D1 + oxaliplatin 100 mg/m², IV, D1 + S-1 40 mg/m², PO, BID, D1-14), administered every 21 days per cycle for 3-4 cycles. Subjects who complete neoadjuvant therapy and are deemed suitable for surgery will undergo gastrectomy, followed by subsequent treatment based on postoperative pathological assessment.

    Drug: Iparomlimab and Tuvonralimab Injection (QL1706) · Drug: Docetaxel · Drug: Oxaliplatin · Drug: Tegafur-Gimeracil-Oteracil · Procedure: Gastrectomy

Interventions

  • DrugIparomlimab and Tuvonralimab Injection (QL1706)

    Drug page: Iparomlimab/Tuvonralimab

    5 mg/kg, intravenous infusion, administered once every 21 days (D1), for 3-4 cycles.

    Also known as: QL1706

  • 40 mg/m², intravenous infusion, administered once every 21 days (D1), for 3-4 cycles.

  • 100 mg/m², intravenous infusion, administered once every 21 days (D1), for 3-4 cycles.

  • 40 mg/m², oral, twice daily (BID), D1-14, every 21 days per cycle, for 3-4 cycles.

  • ProcedureGastrectomy

    Subjects who complete 3-4 cycles of neoadjuvant therapy and are deemed suitable for surgery will undergo gastrectomy. The specific interval between neoadjuvant therapy and surgery will be determined by the investigator based on actual clinical circumstances.

06

What researchers measure

Primary outcomes

  1. Pathological Complete Response Rate (pCR Rate)

    Defined as the proportion of patients with no residual tumor cells in the resected tumor tissue and regional lymph nodes upon pathological evaluation.

    Time frame: Perioperative, upon postoperative pathological evaluation

Secondary outcomes

  1. R0 Resection Rate

    The proportion of patients with microscopically margin-negative resection, with no residual tumor cells either macroscopically or microscopically, and complete resection of the lesion.

    Time frame: Perioperative, upon postoperative pathological evaluation

  2. Major Pathological Response Rate (MPR Rate)

    Defined as the proportion of patients with ≤10% residual viable tumor cells in the postoperative pathological specimen.

    Time frame: Perioperative, upon postoperative pathological evaluation

  3. Objective Response Rate (ORR)

    The proportion of patients achieving complete response (CR) or partial response (PR) as assessed by RECIST version 1.1 criteria.

    Time frame: On Day 1 of every 2 cycles (each cycle is 21 days), prior to surgery

  4. Disease Control Rate (DCR)

    The proportion of patients achieving CR, PR, or stable disease (SD) among evaluable patients as assessed by RECIST version 1.1 criteria.

    Time frame: On Day 1 of every 2 cycles (each cycle is 21 days), prior to surgery

  5. Number of Participants with Adverse Events (AEs) and Severity Graded

    Defined as all adverse events occurring from enrollment (i.e., signing of the informed consent form) through 30 days after the last dose. AEs will be coded using the MedDRA dictionary, with System Organ Class (SOC) and Preferred Term assigned to each adverse event. The severity of adverse events will be graded according to NCI CTCAE version 5.0.

    Time frame: From signing of ICF through 30 days after the last dose

  6. 3-Year Disease-Free Survival Rate (DFS Rate)

    Defined as the proportion of patients without recurrence or metastasis within 3 years after treatment.

    Time frame: 3 years after treatment

Other outcomes

  1. Peripheral blood ctDNA Biomarker

    Serial peripheral blood samples are collected at baseline and during neoadjuvant treatment. Circulating tumor DNA (ctDNA) molecular profiles are detected by next-generation sequencing. The exploratory analysis aims to evaluate the correlation between dynamic ctDNA alterations and treatment efficacy and safety outcomes.

    Time frame: Baseline and on Day 1 of every 2 cycles (each cycle is 21 days, synchronized with imaging evaluation), until prior to surgery

  2. Peripheral blood multi-omics biomarker levels

    Serial peripheral blood samples are collected at baseline and during neoadjuvant treatment. Genomic, transcriptomic, and proteomic multi-omics profiles in peripheral blood are detected using a multi-omics sequencing platform. Exploratory analyses are performed to explore the association between peripheral blood multi-omics molecular features and treatment efficacy and safety.

    Time frame: Baseline and on Day 1 of every 2 cycles (each cycle is 21 days, synchronized with imaging evaluation), until prior to surgery

  3. Tumor tissue multi-omics and tumor microenvironment immune signatures

    Tumor specimens including fresh tissues and formalin-fixed paraffin-embedded (FFPE) sections are collected at baseline (pre-treatment biopsy) and immediately after radical gastrectomy. Baseline and post-operative tumor tissues are subjected to genomic, transcriptomic, and proteomic multi-omics sequencing to characterize tumor biomarkers and tumor microenvironment immune molecular features. All tissue collections do not interfere with routine clinical pathological diagnosis, and are performed with written informed consent. Exploratory analyses will investigate the associations between tissue molecular signatures and treatment efficacy and safety outcomes.

    Time frame: Baseline (pre-treatment biopsy) and perioperative (immediately after radical gastrectomy)

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07828873
Responsible party
Yongxu Jia (Chief Physician, The First Affiliated Hospital of Zhengzhou University) — Principal investigator
First posted
Sep 18, 2026
Start date
Nov 2026 (estimated)
Primary completion
Sep 2029 (estimated)
Completion
Dec 2029 (estimated)
Last update
Sep 18, 2026

Study contacts

Yongxu Jia
Contact
jiayongxu111@126.com
66271157

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Iparomlimab/Tuvonralimab

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