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Comparing lab methods for measuring TROP2 in untreated advanced non-small cell lung cancer

Compares lab tests that measure TROP2 in tumor samples from people with lung cancer.

Key facts

Who runs it
AstraZeneca
Where
Beijing, Guangzhou, and Shanghai, ChinaSee the 3 sites
Trial code
Registry title
TROP2 NMR Concordance Study
Status
Recruiting
People taking part
3,400 people, planned
Started
13 Aug 2026
Expected to end
15 Jun 2027
Type of study
Observational
Treatments tested
  • Reference solution
  • Mixed solution
  • Local solution
Record updated
9 September 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults with non-squamous non-small cell lung cancer who have had no systemic therapy and who have tumour tissue samples for TROP2 testing.

Age
18 years or older
Sex
All sexes can join.
Disease stage
Non-squamous non-small cell lung cancer: stage IIIB or IIIC that cannot be treated with surgery or definitive chemoradiation, or stage IV. Surgical samples from stage I to IIIA are also accepted.
Earlier treatment
No systemic therapy for first-line stage IIIB, IIIC or IV disease.
Biomarker or test result
No sensitising EGFR mutation, and no ALK or ROS1 rearrangements. No documented changes in NTRK, BRAF, RET, MET, HER2 or KRAS that have an approved first-line targeted therapy. PD-L1 status must be documented. Enough tumour tissue (at least 5 slides for Stage 1, at least 7 slides for Stage 2) must be available.

Main reasons for not taking part

  • Mixed small-cell lung cancer and NSCLC
  • Sarcomatoid variant of NSCLC
  • Active tuberculosis infection
  • Severe lung function problems from other lung illnesses, such as severe asthma, severe COPD, restrictive lung disease or pleural effusion
  • Lung blood clot (pulmonary embolus) within 3 months of enrolment

The registry criteria, word for word

Show all 18 criteriaShow less

Who can take part

  • Age ≥18 years at sampling
  • Histologically or cytologically documented non squamous NSCLC including:; Stage IIIB or IIIC disease not amenable for surgical resection or definitive chemoradiation, or Stage IV metastatic NSCLC disease at the time of sampling who have not received any systemic therapy for first-line Stage IIIB, IIIC or IV NSCLC; Participants who provide surgical samples for early-stage disease (Stage I to IIIA) are eligible. The capping for surgical samples is 70% and biopsy samples 30%
  • 2. (b) Lacks sensitising EGFR tumour tissue mutation (eg, exon 19 deletion or exon 21 L858R, exon 21 L861Q, exon 18 G719X, or exon 20 S768I mutation), as well as ALK and ROS1 rearrangements; (c) Has no documented tumour genomic alteration results in NTRK, BRAF, RET, MET or HER2, KRAS oncogenes for which there are locally approved and available targeted first-line therapies; (d) Participants have documented PD-L1 status with TPS (or TC)
  • Willing to provide and have adequate tissue samples for biomarker testing, at least ≥5 FFPE slides for Stage 1, and at least ≥7 FFPE slides for Stage 2. Archival surgical samples less than 2 years before enrollment are eligible
  • Informed Consent: Signed inform consent form or waived inform consent per EC requirements
  • -1.Age ≥18 years at sampling
  • 2.Histologically or cytologically documented non squamous NSCLC including:
  • (a)Stage IIIB or IIIC disease not amenable for surgical resection or definitive chemoradiation, or Stage IV metastatic NSCLC disease at the time of sampling who have not received any systemic therapy for first-line Stage IIIB, IIIC or IV NSCLC
  • Participants who provide surgical samples for early-stage disease (Stage I to IIIA) are eligible. The capping for surgical samples is 70% and biopsy samples 30%
  • (b)Lacks sensitising EGFR tumour tissue mutation (eg, exon 19 deletion or exon 21 L858R, exon 21 L861Q, exon 18 G719X, or exon 20 S768I mutation), as well as ALK and ROS1 rearrangements
  • (c)Has no documented tumour genomic alteration results in NTRK, BRAF, RET, MET or HER2, KRAS oncogenes for which there are locally approved and available targeted first-line therapies
  • (d) Participants have documented PD-L1 status with TPS (or TC)
  • 3. Willing to provide and have adequate tissue samples for biomarker testing, at least ≥5 FFPE slides for Stage 1, and at least ≥7 FFPE slides for Stage 2. Archival surgical samples less than 2 years before enrollment are eligible
  • 4. Informed Consent: Signed inform consent form or waived inform consent per EC requirements

Who cannot take part

  • Mixed small-cell lung cancer and NSCLC histology; sarcomatoid variant of NSCLC
  • At the time of tissue acquisition, the subject has the following known conditions: active tuberculosis infection, or clinically severe pulmonary function compromise resulting from intercurrent pulmonary illnesses including, but not limited to, any underlying pulmonary disorder (eg, pulmonary emboli within 3 months of the study enrollment, severe asthma, severe COPD, restrictive lung disease, pleural effusion, etc.)
  • 1. Mixed small-cell lung cancer and NSCLC histology; sarcomatoid variant of NSCLC
  • 2. At the time of tissue acquisition, the subject has the following known conditions: active tuberculosis infection, or clinically severe pulmonary function compromise resulting from intercurrent pulmonary illnesses including, but not limited to, any underlying pulmonary disorder (eg, pulmonary emboli within 3 months of the study enrollment, severe asthma, severe COPD, restrictive lung disease, pleural effusion, etc.)

Where in China

  • BeijingHospital not named in the registryNot yet recruiting
  • GuangzhouHospital not named in the registryNot yet recruiting
  • ShanghaiHospital not named in the registryNot yet recruiting

About the trial

What the trial wants to find out

This is a two-stage, multi-center study to compare concordance of Local solution and Mixed solution with a Reference solution in testing TROP2 NMR in untreated advanced NSCLC patients, as well as clinical application and robustness in real world labs. TROP2 NMR testing by QCS is composed of three main components: IHC assay, digital scanner and QCS algorithm. This study mainly focuses on end-to-end comparisons from different solutions or real-world labs. TROP2 NMR status results will be compared and the end-to-end concordance between solutions or labs will be assessed by PPA, NPA, and OPA. Three different solutions will be included in this study: Reference solution\Local solution\Mixed solution. Stage 1 will evaluate concordance of Local solution and Mixed solution with Reference solution in a central lab. Totally about 600 samples will be tested using Local solution, Mixed solution and Reference solution. When solutions concordance in stage 1 is achieved, the study will proceed to stage 2. Stage 2 will then assess the robustness and reproducibility of different solutions in real world pathology labs. About 1,000 TROP2 NMR positive (TROP2 NMR+) and 1,000 TROP2 NMR negative (TROP2 NMR-) samples will be identified by central lab using Reference solution, then these status-known samples will be distributed to approximately 50 participating site labs with 20 TROP2 NMR+ and 20 TROP2 NMR- per site, and subsequently tested at site labs in a blinded manner using Reference solution, and/or Local solution and/or Mixed solution, depending on Stage 1 results.

The group in the trial

  • The study is a cross-sectional study with no cohort design

    Treatment: Reference solution, Mixed solution, and Local solution

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
A Two-stage, Multi-center Concordance Study of Trophoblast Cell Surface Antigen 2 (TROP2) Normalized Membrane Ratio (NMR) in Non-Small Cell Lung Cancer Without Systemic Therapy
Plain-language title
Comparing lab methods for measuring TROP2 in untreated advanced non-small cell lung cancerGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 13 November 2026.
Record updated
9 September 2026