ClinicalTrials.gg
RecruitingNCT07751055NEOCRTE2601Updated Aug 7, 2026

Neoadjuvant Chemoradiotherapy Combined With CTLA-4 Monoclonal Antibody Plus PD-1 Monoclonal Antibody for Locally Advanced Esophageal Cancer

A Phase 2 interventional study of Ipilimumab (1mg/kg) and Sinitilimab in Esophageal Squamous Cell Carcinoma (ESCC), sponsored by Sun Yat-sen University. Recruiting at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-08-07.

Sponsored by Sun Yat-sen University · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
51
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 32 studies in Esophageal Squamous Cell Carcinoma by Sun Yat-sen University — 13 open to participants now, 19 under way, 4 of them phase 3. Esophageal Squamous Cell Carcinoma · Sun Yat-sen University.

Planned enrollment
20th of 31
51 · median 69
Started
2026
with 3 others
Phase 2
21 of 32
9 open now
Primary completion
2027-04
later than 9 of 18 live
Registered
32nd of 32
by date

Among the 32 studies in Esophageal Squamous Cell Carcinoma by Sun Yat-sen University, this one is the 20th largest by planned enrollment of the 31 interventional ones that give a count, is one of 4 that started in 2026, is one of 21 in phase 2, reaches primary completion later than 9 of the 18 other live ones, and was the 32nd registered.

Esophageal Squamous Cell Carcinoma

675 studies on the registry are indexed under Esophageal Squamous Cell Carcinoma; 267 are open to participants now.

Browse Esophageal Squamous Cell Carcinoma studies →

Open to participants now

13 of the 32 studies in Esophageal Squamous Cell Carcinoma by Sun Yat-sen University are open now, in 1 country. Recruiting first, the newest first:

7 more — sign in →

By country, each count listing its studies:

All 13 open studies →

Where they have run

Who these studies take

Of the 180 Esophageal Squamous Cell Carcinoma studies recruiting now, 83 (46%) set no upper age limit and 76 (42%) stop at 75 or younger; 3 take children under 18; 8 take healthy volunteers.

This study: 18 Years to 75 Years · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 32 studies in Esophageal Squamous Cell Carcinoma by Sun Yat-sen University, or all of them as a file.
02

Study summary

This is a prospective, single-arm phase II clinical trial intended to investigate the efficacy of neoadjuvant CTLA-4 monoclonal antibody combined with PD-1 monoclonal antibody plus preoperative chemoradiotherapy for locally advanced esophageal cancer. A total of 44 patients with resectable esophageal squamous cell carcinoma (ESCC) will be enrolled.All enrolled subjects will receive induction therapy with the combination of a CTLA-4 inhibitor and a PD-1 inhibitor. Three weeks afterwards, patients will transition to concurrent chemoradiotherapy combined with PD-1 inhibitor. Intensity-modulated radiotherapy (IMRT) will be delivered at a total dose of 40 Gy in 20 fractions. Radical esophagectomy with two-field thoracic and abdominal lymph node dissection will be performed 6-8 weeks after completion of chemoradiotherapy.The primary objective of this trial is to evaluate the efficacy and safety of the triplet regimen consisting of CTLA-4 inhibitor plus PD-1 inhibitor combined with preoperative chemoradiotherapy in locally advanced esophageal cancer, so as to further optimize the multimodal therapeutic strategy for esophageal cancer.

Read the detailed description

This is a single-arm, phase II, single-center clinical trial enrolling patients with resectable locally advanced thoracic esophageal squamous cell carcinoma (ESCC) staged as T1-4aN1-3M0 or T3-4aN0M0 per the 8th edition of the UICC TNM staging system. A total of 51 subjects are planned for enrollment. Patients will receive neoadjuvant concurrent chemoradiotherapy combined with dual immune checkpoint blockade (anti-CTLA-4 plus anti-PD-1 monoclonal antibodies) to evaluate the efficacy and safety of this regimen.

Treatment Regimens Chemotherapy and dual immunotherapy agents Anti-CTLA-4 monoclonal antibody (IBI310): 1 mg/kg via intravenous infusion on Day 1 (D1);Anti-PD-1 monoclonal antibody (sintilimab): 200 mg per administration via intravenous infusion on D1, D22 and D43;Nab-paclitaxel: 75 mg/m² via intravenous infusion on D22, D29, D36 and D43;Cisplatin: 25 mg/m² via intravenous infusion on D22, D29, D36 and D43.

Radiotherapy Intensity-modulated radiotherapy (IMRT) is delivered at a total dose of 40 Gy in 20 fractions (40 Gy/20 f), initiated on D22 with 5 fractions per week to be completed within 4 weeks.

Surgery Preoperative re-evaluation is scheduled at 6-8 weeks after completion of neoadjuvant chemoradiotherapy plus dual immunotherapy. Patients without surgical contraindications will undergo radical esophagectomy plus two-field (thoracoabdominal) lymph node dissection.

03

Conditions studied

  • Esophageal Squamous Cell Carcinoma (ESCC)

Keywords

  • chemotherapy
  • neoadjuvant
  • immune checkpoint inhibitor
  • locally advanced
  • CTLA-4 monoclonal antibody
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. confirmed resectable thoracic esophageal squamous cell carcinoma (ESCC); pretreatment clinical stage of T1-4aN1-3M0 or T3-4aN0M0 per the 8th edition of UICC staging system.
  2. Treatment-naive patients without prior anti-tumor therapy.
  3. Expected survival duration > 6 months.
  4. Aged between 18 and 75 years, either male or female.
  5. Adequate function of major vital organs meeting the following laboratory criteria:

    1. White blood cell (WBC) ≥4.0×10⁹/L; (ANC) ≥1.5×10⁹/L;
    2. count ≥100×10⁹/L;
    3. ≥9 g/dL;
    4. Serum albumin ≥2.8 g/dL;
    5. Total ≤1.5 × ; , AST and/or ALP ≤2.5 × ULN;
    6. Serum creatinine ≤1.5 × ULN, or >60 mL/min.
  6. (ECOG) PS score: 0-1.
  7. Capable of understanding the study protocol and signing written .
  8. Absence of severe complications including active massive gastrointestinal hemorrhage, perforation, jaundice, bowel obstruction, or non-malignant fever >38℃.
  9. Female and male patients of must use effective throughout relevant study period.
  10. Good treatment compliance and availability for scheduled follow-up of efficacy and adverse events per study protocol.

Exclusion criteria

Exclusion Criteria:

  1. Patients who have received prior anti-tumor therapies including chemotherapy, radiotherapy, surgery, immunotherapy, etc.
  2. Patients with known or suspected to any components of inhibitors, sintilimab or other monoclonal antibodies, as well as chemotherapeutic agents (nab-paclitaxel and cisplatin).
  3. Patients with pre-existing hemorrhagic disorders.
  4. Patients with unresectable disease due to other uncontrollable conditions.
  5. Female patients who are pregnant or breastfeeding.
  6. Patients lacking capacity to provide due to psychological, familial or social reasons.
  7. Patients with peripheral neuropathy graded ≥ Grade 2 per criteria.
  8. Patients with a prior history of other besides esophageal cancer, except for non-melanoma skin cancer, cervical carcinoma in situ, or previously cured early-stage prostate cancer.
  9. Patients with more than 10 years of diabetes mellitus and poorly controlled blood glucose.
  10. Patients with severe impairment of cardiac, pulmonary, hepatic or renal function, hematological diseases or cachexia that preclude tolerance to chemotherapy, radiotherapy or surgery.
  11. Patients with active or past history of diseases (including but not limited to colitis, hepatitis, hyperthyroidism), or history of immunodeficiency diseases ( positive, other acquired or congenital immunodeficiency disorders), or previous history of solid organ or hematopoietic stem cell transplantation.
  12. Patients with prior history of interstitial lung disease or non-infectious pneumonia.
  13. Subjects with active (HBV DNA ≥ 2000 IU/mL or 10⁴ copies/mL) or active (HCV antibody positive with HCV-RNA above the lower limit of quantification of the assay).
Terms in these criteria, in plain language(21)

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.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

05

Study design

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

Study arms

  • Experimental
    Single-Arm

    neoadjuvant CTLA-4 monoclonal antibody combined with PD-1 monoclonal antibody plus preoperative chemoradiotherapy

    Drug: Ipilimumab (1mg/kg) · Drug: Sinitilimab · Drug: Nab-paclitaxel + Cisplatin · Radiation: IMRT combine with cisplatin concurrent chemotherapy

Interventions

  • DrugIpilimumab (1mg/kg)

    Drug page: Ipilimumab

    Chemotherapy and dual immunotherapy agents Anti-CTLA-4 monoclonal antibody (IBI310): 1 mg/kg via intravenous infusion on Day 1 (D1);

  • DrugSinitilimab

    Sintilimab (anti-PD-1 monoclonal antibody) will be administered at a dose of 200 mg via intravenous infusion on Day 1, Day 22 and Day 43.

  • DrugNab-paclitaxel + Cisplatin

    Drug pages: Albumin-Bound Paclitaxel · Cisplatin

    Nab-paclitaxel: 75 mg/m² via intravenous infusion on D22, D29, D36 and D43; Cisplatin: 25 mg/m² via intravenous infusion on D22, D29, D36 and D43.

  • RadiationIMRT combine with cisplatin concurrent chemotherapy

    Intensity-modulated radiotherapy (IMRT) will be adopted with a total dose of 40 Gy in 20 fractions. Radiotherapy starts on Day 22, administered 5 times per week and completed within 4 weeks.

06

What researchers measure

Primary outcomes

  1. Pathologic complete response rate

    No malignant tumor cells were detected in the removed specimens including primary tumor and lymph nodes

    Time frame: Two weeks after surgery

Secondary outcomes

  1. R0 resection rate

    The persentage of patients who under complete resection

    Time frame: Two weeks after surgery

  2. Tumor Regression Grade

    Time frame: Two weeks after surgery

  3. Progression free survival

    Progression free survival is defined as the time from randomization until objective tumor progression or death

    Time frame: At end of enrollment-up to 5 years in follow up

  4. Overall survival

    Overall survival will be calculated from the date of randomization and an event registered on the date of death from those with no death recorded on the day the database is frozen,will be censored on the date of last follow up

    Time frame: At the end of enrollment-up to 5 years in follow up

  5. Incidence of perioperative complications

    Incidence of complications

    Time frame: Ninety days after surgery

07

Study locations

1 of 1 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Aug 2026; primary completion for Apr 2027, 8 months later.

Of 153 non-industry phase 2 interventional studies under Esophageal Squamous Cell Carcinoma, half reached primary completion within 41 months of starting (the median), counting those still running; a quarter within 30 and three quarters within 55. This study's planned 8 months is below that.

Counting every sponsor, half of 173 studies reached it within 40 months; a quarter within 28 and three quarters within 52.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 30, 2026
First posted
Aug 7, 2026
StartEst.
Aug 1, 2026
Primary completionEst.
Apr 1, 2027
CompletionEst.
Dec 31, 2030
Last update
Aug 7, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07751055
Responsible party
Yang Hong (Prof, Sun Yat-sen University) — Principal investigator
First posted
Aug 7, 2026
Start date
Aug 1, 2026 (estimated)
Primary completion
Apr 1, 2027 (estimated)
Completion
Dec 31, 2030 (estimated)
Last update
Aug 7, 2026

Study contacts

Hong Yang
Contact
yanghong@sysucc.org.cn
86-135560405144

Oversight

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

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Studies of the drugs tested here: Ipilimumab · Albumin-Bound Paclitaxel · Cisplatin

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