ClinicalTrials.gg
Not yet recruitingNCT07778745Updated Aug 21, 2026

A Prospective Phase II Clinical Trial Evaluating the Efficacy and Safety of Adebrelimab in Combination With Trastuzumab Rezetecan for Patients With Stage III Unresectable HER2-Positive NSCLC

A Phase 2 interventional study of Adebrelimab and Trastuzumab rezetecan in NSCLC, sponsored by Tianjin Medical University Cancer Institute and Hospital. Not yet recruiting. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-08-21.

Sponsored by Tianjin Medical University Cancer Institute and Hospital · Phase 2, Interventional, and Treatment

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Phase
Phase 2
Study type
Interventional
Enrollment
37
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a single-arm, open-label, multicenter phase II investigator-initiated trial. The study aims to explore the efficacy and safety of Adebrelimab plus Trastuzumab rezetecan induction therapy in patients with stage III unresectable HER2-altered non-small cell lung cancer (NSCLC). Eligible patients receive 3-4 cycles Q3W induction combination therapy. After induction, patients will receive radical surgery or concurrent chemoradiotherapy via MDT evaluation, followed by consolidation therapy and long-term survival follow-up. The primary endpoint is objective response rate (ORR) assessed per RECIST v1.1. Secondary endpoints include surgical conversion rate, major pathological response (MPR), event-free survival (EFS), overall survival (OS), and safety profiles.

02

Conditions studied

  • NSCLC
03

In context

Lead sponsor

Tianjin Medical University Cancer Institute and Hospital is the lead sponsor of 494 studies on the registry; 293 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

  • Aged 18-75 years, male or female.
  • or cytologically confirmed stage III unresectable NSCLC per AJCC 9th edition, judged unresectable by institutional MDT team.
  • Confirmed alteration: HER2 mutation/amplification detected by tissue NGS, or HER2 protein overexpression (IHC 2+ or 3+).
  • No prior systemic anti-tumor therapy for NSCLC; prior anti-tumor Chinese herbal medicine allowed if ≥2 weeks before first dose.
  • At least 1 measurable target lesion per v1.1.
  • performance status 0 or 1.
  • Able to provide tumor tissue specimen (archival ≤6 months or newly biopsied non-irradiated lesion).
  • >1.0 L and FEV1% predicted >40% within past 3 months.
  • Adequate organ function within 7 days before first dose (no blood product/G-CSF support within 14 days):

    • Hematology: WBC ≥3.0×10⁹/L, ≥1.5×10⁹/L, ≥100×10⁹/L, ≥90g/L
    • Liver: /ALT ≤2.5× (≤5×ULN for liver ), ≤1.5×ULN
    • Renal: Serum Cr ≤1.5×ULN or ≥50 mL/min
    • Cardiac: ≥50% by echocardiogram
  • Fertile male/female participants must use effective during treatment and 6 months after last dose; female participants non-lactating, negative serum HCG within 14 days pre-first dose.
  • Voluntarily sign written , good compliance for follow-up.

Exclusion criteria

Exclusion Criteria:

  • Mixed small cell/large cell neuroendocrine/sarcomatoid NSCLC histology.
  • Concurrent other actionable driver gene alterations (EGFR, ALK, MET, BRAF, RET etc.) besides .
  • Past or concurrent other malignant tumor (except fully resected cancer ≥5 years without active treatment).
  • Prior thoracic radiotherapy.
  • Major surgery within 28 days or minor invasive surgery within 7 days before first dose.
  • infection, active /C, organ transplant history, congenital/acquired immunodeficiency.
  • Systemic immune modulators (thymosin, interferon, IL-2) within 4 weeks pre-enrollment.
  • Uncontrolled severe cardiovascular disease, unstable angina or intervention-required ventricular arrhythmia within 1 month.
  • Confirmed or suspected interstitial lung disease, severe baseline pulmonary dysfunction interfering with lung toxicity monitoring.
  • Active uncontrolled ≥2 grade infection within 2 weeks before enrollment.
  • Active tuberculosis under treatment.
  • Known to any component of study drugs or other monoclonal antibodies/fusion proteins.
  • Any condition judged by investigator to compromise participant safety or trial compliance.
Terms in these criteria, in plain language(20)

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.

HER2

HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.

In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

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.

FEV1

From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.

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).

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.

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.

Metastases

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

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.

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.

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.

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.

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.

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.

05

Study design

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

Study arms

  • Experimental
    Experimental: Adebrelimab + Trastuzumab rezetecan Induction Therapy

    Drug: Adebrelimab · Drug: Trastuzumab rezetecan

Interventions

  • 1200mg intravenous infusion on Day 1 of every 21-day cycle for 3-4 induction cycles; consolidation therapy after local treatment as physician discretion. Infusion duration 30-60 minutes.

  • 3.2mg/kg intravenous infusion on Day 1 of every 21-day cycle for 3-4 induction cycles; fixed dose 408mg if body weight ≥85kg. First infusion over 90 mins, subsequent cycles 60 mins if well tolerated.

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR)

    Proportion of participants achieving Complete Response (CR) or Partial Response (PR) after 3-4 cycles induction therapy, assessed per RECIST v1.1 by investigators

    Time frame: End of Cycle 3/Cycle 4 induction (each cycle 21 days). Surgery-eligible patients assess tumor 6-8 weeks after Cycle3 last dose; others evaluate at Cycle4 end, ±7-day imaging window.

Secondary outcomes

  1. Surgical Conversion Rate

    Percentage of subjects receiving R0 radical pulmonary resection after MDT re-evaluation post induction

    Time frame: Within 6 to 8 weeks after the last induction study drug infusion (42-56 days post final induction dose)

  2. Major Pathological Response (MPR) Rate

    Proportion of surgical patients with ≤10% viable tumor cells in resected primary tumor specimen (central blinded pathology review)

    Time frame: Within 4 weeks after curative lung resection (pathology report completion window)

  3. Event-Free Survival (EFS)

    Time from first study drug dose to disease progression, local recurrence, distant metastasis, or death from any cause

    Time frame: Up to 36 months after the first dose of study treatment (3-year full survival follow-up)

  4. Overall Survival (OS)

    OS defined as time from first dose to all-cause death; survival rate calculated at fixed time points

    Time frame: 12 months, 18 months, 24 months, and 36 months after the first dose of study treatment

  5. Safety Profile (Treatment-Related Adverse Events)

    Incidence and grade of all adverse events, ≥3 grade AEs, serious adverse events (SAE), immune-related AEs, interstitial lung disease graded per NCI CTCAE v6.0

    Time frame: From the date of signed informed consent through 30 days after the last study treatment infusion; long-term safety follow-up continues up to 36 months post first dose for delayed irAEs.

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Aug 2026; primary completion for Aug 2027, 12 months later.

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

Registered
Aug 6, 2026
First posted
Aug 21, 2026
StartEst.
Aug 20, 2026
Primary completionEst.
Aug 30, 2027
CompletionEst.
Aug 30, 2029
Last update
Aug 21, 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 21, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07778745
Responsible party
Sponsor
First posted
Aug 21, 2026
Start date
Aug 20, 2026 (estimated)
Primary completion
Aug 30, 2027 (estimated)
Completion
Aug 30, 2029 (estimated)
Last update
Aug 21, 2026

Study contacts

Meng Wang Meng Wang
Contact
18622221623@pm.com
18622221623

Oversight

Data monitoring committee
No
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 Aug 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drugs tested here: Adebrelimab · Trastuzumab rezetecan

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