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NCT06155305
Breast cancer is the most common malignancy in women worldwide. Patients with breast cancer are often diagnosed at later stages and have a strong desire for breast conservation, necessitating neoadjuvant chemotherapy. Tumors of different molecular subtypes and individual variations among patients lead to significant differences in treatment efficacy. Precise assessment of patients' responses to treatment regimens is imperative in advancing prognosis of breast cancer. In this study, 58 patients diagnosed with breast cancer and scheduled for neoadjuvant therapy will be recruited. Patient-derived organoids from their tumor biopsies will be utilized to evaluate the sensitivity of chemotherapy regimen. These drugs primarily include Doxorubicin, Carboplatin, Cyclophosphamide, Paclitaxel, as well as targeted therapies such as Herceptin and Pertuzumab.
NCT06100016
The study is a real-world observational clinical study. Patients diagnosed as colorectal cancer through histopathology were screened and enrolled. Before anti-tumor treatment, colonoscopy biopsy tissue specimens, surgical specimens, and malignant pleural effusion or ascites specimens, etc. are collected. The investigators will perform a drug sensitivity testing based on a novel drug susceptibility testing method to test the commonly used anti-tumor treatment regimens. Patients were given conventional anti-tumor treatment according to the medical judgment of the doctors. Finally, the investigator will evaluate the consistency of clinical efficacy in colorectal cancer treatment and drug susceptibility outcomes.
NCT05644743
The clinical incidence of intrahepatic cholangiocarcinoma (ICC) is high and insidious, and the prognosis of advanced patients is poor. The clinical manifestations of traditional chemotherapy GC and emerging targeted therapy are different in most patients, and there is still no effective scheme to evaluate the differences in individual patient reactivity. Patient-derived tumor organoids (PDO) are 3D-cultured tissues based on tumor cell dryness that reproduce a variety of biological characteristics of parental tumors in vitro and have similar drug responsiveness to tumors in vivo. This project plans to use clinical cases and optimized organoid culture system to first construct relevant organoids from unresectable ICC patient puncture samples. Secondly, based on the organoid model of intrahepatic cholangiocarcinoma, the clinical efficacy of GC regimen was predicted, and in vitro and in vivo drug screening was conducted to explore the guidance of patient-derived tumor organoids for clinical treatment. Then, multi-omics data of organoids and in vitro and in vivo drug efficacy evaluation model were used to explore the drug resistance genes of intrahepatic cholangiocarcinoma, providing the basis for personalized drug screening and efficacy evaluation of intrahepatic cholangiocarcinoma.
NCT05442138
Early gastric cancer（AGC）has no effective characteristic symptoms and signs according to clinical statistics. Neoadjuvant chemotherapy (NAC) significantly reduces the size of AGC tumors so that it has become the recommended treatment for AGC in major guidelines. However, Some patients miss the best time for surgical treatment and may have irreversible chemotherapy side effects due to NAC lacks the guidance of new indicators for precise treatment such as molecular biomarkers. Tumor organoids are highly consistent with the clinical drug sensitivities of patients which could be used as clinical treatment prediction models thus providing guidance for individualized medicine. Therefore, the project is the first to carry out the prospective study by screening the potential benefit populations of NAC based on tumor organoids drug susceptibility experiment. The following hypothesis are put forward：the potential benefit population of NAC screened by tumor organoid drugs susceptibility technology will have better clinical efficacy, better treatment tolerance and higher adverse reaction rate.
NCT04996355
The individualized treatment of tumors has always been an urgent problem in clinical practice. Organoids-on-a-chip can reflect the heterogeneity of tumors and is a good model for in vitro anticancer drug screening. In this study, surgical specimens of patients with advanced colorectal cancer will be collected for organoid culture and organoids-on-a- chip. Use organoids-on-a-chip to screen tumor chemotherapy drugs, compare the results of patients' actual medication regimens, and study the guiding role of organoids in the formulation of precise tumor treatment plans. The investigators will compare the response of organoids to drugs in vitro with the patient's response to actual chemotherapy and targeted drugs and explore the feasibility and accuracy of organoids-on-a-chip based drug screening for advanced colorectal cancer. The project will establish a screening platform for chemotherapeutic drugs and targeted drugs based on colorectal cancer organoids to quickly and accurately formulate personalized treatment plans for clinical patients.
NCT04555473
This is a longitudinal observational phase II, single center, single arm study on the reliability of high grade serous ovarian carcinoma organoids obtained from primary debulking surgery (PDS)+adjuvant chemotherapy and neoadjuvant chemotherapy + interval debulking surgery (NACT+IDS) cases as model for the patients' response to treatments. Since organoids represent a model system comparable to patient-derived xenografts, the investigators tested the null hypothesis that the possibility of correctly identifying the drug-sensitivity could improve from 80%, as assessed by xenografts to at least 95%. The first step was planned to include 7 patients; if 5 or more patients do not respond, the trial will be terminated. If the trial goes on to the second stage, a total of 43 patients will be studied. Considering a patient dropout of approximately 10%, the study was planned to enroll at least 48 patients.