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A Pan-Cancer Retrospective Study on the Relationship Between Tumor Microenvironment Composition and Efficacy of Antibody-Based Antitumor Therapy

2026年5月7日更新者：Tianjin Medical University Cancer Institute and Hospital

This study is a single-center, retrospective, observational cohort investigation conducted at Tianjin Cancer Hospital that aims to evaluate the relationship between tumor microenvironment (TME) composition and the efficacy of antibody-based antitumor therapies-including monoclonal antibodies, antibody-drug conjugates, and bispecific antibodies-across a pan-cancer population comprising adult patients with breast, colorectal, head and neck squamous, lung, bladder, gastric, or pancreatic cancer treated between January 2020 and January 2026. Using real-world data extracted from electronic medical records, pathology archives, and laboratory systems, the study will analyze TME-related variables derived from tissue immunohistochemistry, molecular testing, and peripheral blood inflammatory markers in relation to clinical outcomes, with a primary endpoint of either progression-free survival or objective response rate to be finalized before database lock, and secondary endpoints including overall survival, disease control rate, and subgroup heterogeneity across cancer types and drug classes. Statistical analyses will employ Kaplan-Meier survival curves, Cox proportional hazards models, logistic regression, and appropriate multivariable adjustments with sensitivity analyses using propensity score methods, while the study will adhere to ethical standards under a waiver of informed consent due to its minimal-risk, retrospective design and strict de-identification of patient data.

調査の概要

状態

積極的、募集していない

条件

研究の種類

観察的

入学 (推定)

300

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

中国
- Tianjin Municipality
  - Tianjin、Tianjin Municipality、中国
    - Tianjin Medical University Cancer Institute & Hospital

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

大人
高齢者

健康ボランティアの受け入れ

いいえ

サンプリング方法

確率サンプル

調査対象母集団

This retrospective cohort study includes adult patients (≥18 years) with pathologically confirmed breast, colorectal, head and neck squamous, lung, bladder, gastric, or pancreatic cancer who received at least one line of antibody-based antitumor therapy-including monoclonal antibodies, antibody-drug conjugates (ADCs), and bispecific antibodies-at Tianjin Cancer Hospital between January 2020 and January 2026. Eligible patients must have completed at least one cycle of efficacy evaluation with available radiologic or clinical response records, possess complete key clinical data (demographics, staging, treatment details, and follow-up outcomes), and have at least one tumor microenvironment (TME)-related assessment available from tissue immunohistochemistry, molecular testing, or peripheral blood inflammatory markers. Patients are excluded if they lack critical efficacy or exposure data, have a concurrent active malignancy with indistinguishable outcome attribution, present with severely i

説明

Inclusion Criteria:

Age 18 years or older
Pathologically confirmed diagnosis of breast cancer, colorectal cancer, head and neck squamous cell carcinoma, lung cancer, bladder cancer, gastric cancer, or pancreatic cancer
Received antibody-based antitumor therapy at this center, including monoclonal antibodies, antibody-drug conjugates, bispecific antibodies, or other antibody-based agents, either as monotherapy or combination therapy
Completed at least one post-treatment efficacy assessment or had evaluable radiographic or clinical documentation of treatment response
Available key clinical information, including demographics, tumor stage, line of therapy, treatment details, efficacy outcomes, or follow-up data
Available data for at least one tumor microenvironment-related indicator, including tissue immunohistochemistry, molecular testing, or peripheral blood inflammatory markers

Exclusion Criteria:

Missing key outcome information, including unevaluable treatment response or absence of follow-up or survival outcome records
Missing key exposure information, including antibody-based therapy drug name or timing/line of therapy
Concurrent active malignancy for which treatment outcomes cannot be clearly attributed to the cancer of interest
Severely incomplete or unverifiable medical records
Received only supportive or palliative care without exposure to antibody-based antitumor therapy

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか？

デザインの詳細

グループ/コホートの数

コホートと介入

グループ/コホート
Adult patients with any of seven solid tumors who received antibody-based therapy (2020-2026) The study cohort comprises adult patients (≥18 years) with pathologically confirmed diagnoses of breast, colorectal, head and neck squamous, lung, bladder, gastric, or pancreatic cancer who received at least one line of antibody-based antitumor therapy-including monoclonal antibodies, antibody-drug conjugates (ADCs), or bispecific antibodies-at Tianjin Cancer Hospital between January 1, 2020, and January 1, 2026. Eligible cases must have at least one evaluable efficacy assessment and available tumor microenvironment-related data derived from tissue immunohistochemistry, molecular profiling, or peripheral blood inflammatory indices. The cohort is derived retrospectively from real-world electronic medical records, pathology archives, and laboratory information systems, with an anticipated sample size of approximately 200-500 analyzable cases to support multivariable modeling and subgroup explorations across cancer types and drug classes.

グループ/コホート

Adult patients with any of seven solid tumors who received antibody-based therapy (2020-2026)

The study cohort comprises adult patients (≥18 years) with pathologically confirmed diagnoses of breast, colorectal, head and neck squamous, lung, bladder, gastric, or pancreatic cancer who received at least one line of antibody-based antitumor therapy-including monoclonal antibodies, antibody-drug conjugates (ADCs), or bispecific antibodies-at Tianjin Cancer Hospital between January 1, 2020, and January 1, 2026. Eligible cases must have at least one evaluable efficacy assessment and available tumor microenvironment-related data derived from tissue immunohistochemistry, molecular profiling, or peripheral blood inflammatory indices. The cohort is derived retrospectively from real-world electronic medical records, pathology archives, and laboratory information systems, with an anticipated sample size of approximately 200-500 analyzable cases to support multivariable modeling and subgroup explorations across cancer types and drug classes.

この研究は何を測定していますか？

主要な結果の測定

結果測定	メジャーの説明	時間枠
Spearman correlation coefficient between tumor microenvironment marker levels and objective response rate/progression-free survival 時間枠：January 2020 and January 2026	Tumor microenvironment markers, including NETosis-related markers and immune-cell composition, will be quantified by multiplex immunofluorescence as percentage of marker-positive area or percentage of marker-positive cells. Treatment efficacy will be assessed by objective response rate according to RECIST 1.1, and prognosis will be assessed by progression-free survival and overall survival. Spearman correlation coefficients will be calculated to evaluate the correlation between tumor microenvironment marker levels and treatment outcomes.	January 2020 and January 2026

二次結果の測定

結果測定	メジャーの説明	時間枠
To evaluate the predictive value of TME indicators for efficacy outcomes (e.g., AUC, calibration, decision curve analysis, etc., to be conducted as data permit). 時間枠：January 2020 and January 2026		January 2020 and January 2026
Subgroup-specific Spearman correlation coefficient between tumor microenvironment marker levels and objective response rate 時間枠：January 2020 and January 2026	Tumor microenvironment markers will be measured in pretreatment tumor tissue by multiplex immunofluorescence and reported as the percentage of marker-positive cells or marker-positive area. Objective response rate will be defined as the percentage of patients with complete or partial response according to RECIST 1.1. Spearman correlation coefficients will be calculated within predefined subgroups, including cancer type, antibody target/type, and line of therapy.	January 2020 and January 2026
Interaction term odds ratio for clinical factors modifying the association between tumor microenvironment marker levels and objective response 時間枠：January 2020 and January 2026	Tumor microenvironment markers will be measured in pretreatment tumor tissue using multiplex immunofluorescence and reported as the percentage of marker-positive cells or marker-positive area. Objective response will be defined as complete or partial response according to RECIST 1.1. Multivariable logistic regression will be used to assess interaction terms between tumor microenvironment marker levels and predefined clinical factors, with results reported as odds ratios and 95% confidence intervals.	January 2020 and January 2026
To construct a multivariable predictive model or risk stratification tool where feasible 時間枠：January 2020 and January 2026		January 2020 and January 2026

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

Tianjin Medical University Cancer Institute and Hospital

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年3月1日

一次修了 (推定)

2026年6月30日

研究の完了 (推定)

2026年6月30日

試験登録日

最初に提出

2026年4月19日

QC基準を満たした最初の提出物

2026年5月7日

最初の投稿 (実際)

2026年5月13日

学習記録の更新

投稿された最後の更新 (実際)