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Tumor Microenvironment

Tundra lists 10 Tumor Microenvironment clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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NOT YET RECRUITING

NCT07886359

Effects of Supervised Aerobic Exercise on Biomarkers in Patients With nSCLC Receiving Immunotherapy

Exercise is increasingly recognized as a supportive intervention in oncology and may influence systemic inflammation, immune regulation, physical function, and the tumor microenvironment among patients with non-small cell lung cancer. The EXIMPACT trial will investigate the effects of a supervised aerobic exercise program on immune system- and tumor microenvironment-related biomarkers in patients with NSCLC receiving active immunotherapy. Although immunotherapy has improved outcomes for patients with NSCLC, factors influencing treatment response and strategies to enhance treatment efficacy remain under investigation.

Gender: All

Ages: 18 Years - 75 Years

Updated: 2026-10-21

Non-Small Cell Lung Cancer
Aerobic Exercise
Immunotherapy
+4
COMPLETED

NCT06202781

Tumor Microenvironment in Gastric Cancer Patients Treated With Combined Immunotherapy and Chemotherapy

The goal of this study is to analyze the tumor microenvironment (TME) in gastric cancer patients treated with combined immunotherapy and chemotherapy. The main questions it aims to answer are: * Provide profiles of TME between pre-treatment and post-treatment to gain insights into the mechanisms of immunotherapy combined with chemotherapy in advanced gastric cancer * Investigate the crucial factors affecting treatment efficacy by comparing gastric cancer patients with varying treatment responses

Gender: All

Ages: 18 Years - 70 Years

Updated: 2026-10-15

1 state

Gastric Cancer
Tumor Microenvironment
Immunotherapy
+1
RECRUITING

NCT06929845

Organoid Models of Hepatocellular Carcinoma

A promising tool to elucidate the molecular characteristics of HCC are patient-derived organoids (PDOs), three-dimensional cultures of cells that self-organise according to tissue-specific patterns and can be used to test the susceptibility of a specific tumour to anticancer agents. In this study, PDOs for HCC will be developed that closely resemble the tumour microenvironment in vivo and mimic the crosstalk of the gut-liver axis to establish a correlation with patient prognosis and test the efficacy of available systemic therapies.

Gender: All

Ages: 18 Years - Any

Updated: 2026-09-21

Hepatocellular Carcinoma
Organoids
Gut Microbiota
+3
ACTIVE NOT RECRUITING

NCT07584044

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

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.

Gender: All

Ages: 18 Years - Any

Updated: 2026-05-13

1 state

Tumor Microenvironment
Antibody
RECRUITING

NCT07375420

Will a Pre-therapy Exercise Intervention Improve the Outcomes of Patients With Advanced Oesophageal Cancer?

Background Regular exercise can significantly improve physical and mental health during cancer treatment and reduce the time needed in the hospital. Animal studies suggest that exercise training can also reduce the number of cancer cells. For example, exercise training in mice produces more immune cells in the tumour. These immune cells in the tumour contribute to the destruction and reduction of the size of the tumour and are a vital component of effective immunotherapy (cancer treatment that helps the immune system fight cancer). In humans, exercise training and the immune response in tumours are less understood. Only 1 study has investigated the effect of a single exercise session before surgical removal of the prostate in prostate cancer patients. As the benefits of exercise are gained from weeks/months of exercise, no effect on the immune cells in the tumours were found. The investigators have carried out a previous study looking at how exercise affects fitness before major surgery. After this they used state-of-the-art methods to detect and visualise immune cells within the tumour. Compared with the patients who did not exercise, the exercise group had significantly more immune cells in their tumours, consisting of a group of cells that are important for killing cancerous cells called CD8+ T cells. CD8+ T cells in tumours are associated with improved survival outcomes. Importantly, they found a link between changes in fitness and the amount of these cells in the tumour. This suggests that if there is increase in fitness, there also an increase in the frequency of these cells in the tumour. Therefore, the investigators propose performing a clinical trial to find out the best level of exercise patients need to sustain before surgery to produce this improved immune response. The trial will aim to understand how this happens and how the entry of immune cells into the tumour changes the environment around a tumour. The investigators consist of a team of exercise immunologists, tumour immunologists and clinicians working with the Human Performance Institute at the University of Surrey in collaboration with the Royal Surrey NHS Trust. How it will be done The investigators will assess immune cell response in blood samples obtained from oesophageal cancer patients before, during and after a high or low intensity exercise programme. Following the exercise programme, tumour tissue removed at surgery from these patients will be used to investigate the the presence and quantity of these immune cells. Potential impact A better understanding of this is important, as current anti-cancer immune-based therapeutics work best when there is a an immune response within the patient's tumour. Generating evidence that exercise can improve the immune response against the tumour in patients with oesophageal cancer would provide significant justification for introducing "personalised" exercise programmes to improve treatment outcomes.

Gender: All

Updated: 2026-02-02

1 state

Oesophageal Adenocarcinoma
T Cells
Tumor Microenvironment
+1
NOT YET RECRUITING

NCT07211841

Correlative Analysis Between Magnetic Resonance Spectroscopy (MRS) and Essential Clinicobiological Data in Glioblatoma Multiforme (GBM)

Glioblastoma multiforme (GBM) is the most common primary brain tumor, and it is well-known to be associated with a poor prognosis. MRI is the key medical technique for the diagnosis and the follow-up of GBM. By allowing for MRS studies, MRI permits a non-invasive characterization of the TME of GBM, including their metabolic characterization. The investigators propose to address the link between the MRS profile of GBM and basic clinical and biological parameters, with the aim of : i) identifying correlations between these parameters, ii) attempting to integrate clinical, biological and spectroscopic profiles of GBM. The investigators plan to recruit 30 newly diagnosed GBM patients for which surgery / radiochemotherapy will be proposed in the Medical oncology unit of Amiens University Hospital. Following inclusion of patients with probable GBM, MRS study will be performed during the first (pre-therapeutic) MRI examination. Basic clinical and biological parameters of the blood (CRP, complete blood count, fibrinogen, lactate and choline) will be assessed. A metabolomic study will also be performed on the plasma of GBM patients before any therapeutics. A second biological, post-therapeutic assesment (one month after surgery/radiochemotherapy) will allow the same analyses (basic biological parameters + plasma metabolomics), in order to examine the stability of the blood parameters.

Gender: All

Ages: 18 Years - Any

Updated: 2025-11-19

Glioblastoma
MRI Spectroscopy
Tumor Microenvironment
+1
RECRUITING

NCT06687876

Metformin as a Metabolic Intervention in Oesophageal Adenocarcinomas to Improve Response to Neoadjuvant Chemoradiotherapy

The primary objective of this study is to investigate whether two weeks of metformin treatment can activate the tumour microenvironment in patients with stage II and III oesophageal adenocarcinomas.

Gender: All

Ages: 18 Years - Any

Updated: 2025-07-10

Oesophageal Adenocarcinoma
Tumor Microenvironment
NOT YET RECRUITING

NCT06776198

Precision Therapy Based on Immune Microenvironment by Transcriptome Sequencing of Osteosarcoma, a Prospective, Multi-cohort Exploratory Clinical Study

Bagaev et al. have identified four tumor microenvironment (TME) subtypes that are conserved across diverse cancers and correlated with immunotherapy response in melanoma, bladder, and gastric cancers. They provided a visual tool revealing the TME subtypes integrated with targetable genomic alterations, which provided a planetary view of each tumor that can aid in oncology clinical decision making. We aim to use this tool to prospectively analyse the biopsy specimens of osteosarcomas to identify their TME subtypes so as to deliver appropriate treatment strategy if these osteosarcomas experience disease progression afterwards. We will compare the past sequencing date stored in PKUPH bank so as to compare the event-free survival(EFS) of these patients to check the Superiority of this method later.

Gender: All

Ages: 8 Years - 70 Years

Updated: 2025-01-24

Osteosarcoma
Transcriptome
Tumor Microenvironment
+1
RECRUITING

NCT06436040

Mechanism Study to Investigate Difference in Efficacy of Neoadjuvant Chemoimmunotherapy in Lung Squamous Cell Carcinoma

To explore mechanisms of immunotherapy resistance and relation to changes in the TME before and after PD-1 blockade combined with chemotherapy

Gender: All

Ages: 40 Years - 80 Years

Updated: 2024-05-30

1 state

Tumor Microenvironment
Lung Squamous Cell Carcinoma
Neoadjuvant Chemoimmunotherapy
RECRUITING

NCT06182657

The Prognostic Value of the Degree of Pathological Response of Induction Chemotherapy for NPC

This study aims to explore the prognostic value of pathological remission after one cycle of induction chemotherapy in locally advanced nasopharyngeal carcinoma, and the change of immune micro-environment after one cycle induction chemotherapy, including the density of immune cells infiltration and tertiary lymphoid structures.

Gender: All

Ages: 18 Years - Any

Updated: 2024-02-08

1 state

Nasopharyngeal Carcinoma
Pathologic Complete Response
Tumor Microenvironment