Active clinical trials for "Neoplasms, Multiple Primary"

BACKGROUND: The role of cytoreductive nephrectomy (CN) in the treatment of metastatic renal cell carcinoma (mRCC) has been questioned and remains undetermined in the immuno-oncology era. Results from the two randomized trials, CARMENA and SURTIME, have questioned the role and timing of the surgery in these patients, however, these trials have only used the targeted therapy, sunitinib. With the advent of more effective systemic therapies including immune checkpoint inhibitors (ICIs), the role of surgical therapy should be reexamined. RATIONALE: The therapeutic effects of ICIs have demonstrated improved oncological outcomes compared to sunitinib. The updated results reported the beneficial role of upfront and deferred CN approach for selected patients. No studies have formally investigated the role of CN in the immune-oncology era where combinatorial use of CN plus ICIs might be beneficial. HYPOTHESIS: Upfront or deferred CN will improve oncological outcomes (overall survival, and progression free survival) in patients with synchronous mRCC and ≤3 IMDC risk features compared to immune checkpoint inhibitors (nivolumab plus ipilimumab combination) alone. This is an open, randomized, multicenter comparison trial, designed to evaluate the effect of the potential role of CN in combination with immunotherapy in mRCC patients with IMDC intermediate and poor risk.

BACKGROUND: For synchronous metastatic renal cell carcinoma (RCC), surgical resection of the primary tumor in the presence of distant metastases has been the standard of therapy for select patients followed by systemic therapy. In the era of TKIs two randomized trials, CARMENA and SURTIME, have questioned the role and timing of surgery in these patients, results point towards no surgery or a deferred approach. RATIONALE: The antitumor activity of immune checkpoint blockage (ICB) is more potent than other therapy in mRCC. The deferred cytoreductive nephrectomy approach ensures systemic therapy for all patients, avoid systemic treatment delay, and spare surgery in patients with progressive tumors. Current data only point towards a survival benefit for cytoreductive nephrectomy in intermediate risk patients, but not in poor risk patients HYPOTHESIS: Deferred cytoreductive nephrectomy after initial nivolumab combined with ipilimumab or a TKI/IO-combination will improve OS in patients with synchronous metastatic RCC and ≤3 IMDC risk features This is an open, randomized, multicenter comparison trial, designed to evaluate the effect of deferred cytoreductive nephrectomy compared with no surgery following initial nivolumab combined with ipilimumab or a TKI-combination, in mRCC patients with IMDC intermediate and poor risk.

Background: Esophageal cancer commonly occurs in middle-aged man. It is ranked to the 6th common cancer and 5th cancer-related death in Taiwanese male, and sometimes co-exist with oropharyngeal cancer, which impacts our national economics and productivity a lot. To improve the prognosis of esophageal cancer, we should contribute to early diagnosis and improved treatment of the disease. Recent studies showed oral and esophageal dysbiosis may lead to oropharyngeal and esophageal cancer. Aim: To investigate whether oral microbiota is similar to esophageal microbiota. To investigate whether oral microbiota can be a non-invasive biomarker of oropharyngeal cancer, esophageal cancer, synchronous cancer and chemoradiation resistance. And whether probiotic supplement can improve oral/esophageal dysbiosis in order to prevent esophageal cancer. Study design: This study compares the oral/esophageal microbiota composition between oropharyngeal cancer cases, esophageal cancer cases, synchronous cancer cases and non-cancer controls. In addition, the link between oral and esophageal microbiota will be explored. The study will identify the microbiota related with esophageal cancer development. We will also validate the effect of probiotic supplementation on improving oral/esophageal dysbiosis. Expected result and significance: Examination of oral microbiota has the potential to become a non-invasive tool for oropharyngeal cancer, esophageal cancer, and synchronous cancer. Probiotic supplementation has the potential to improve oral dysbiosis.

This single arm study aims to evaluate the rate of conversion therapy in patients with unresectable liver-limited metastatic colorectal cancer (mCRC) using FOLFOXIRI neoadjuvant regimen and to assess the other outcome including the response rate, the survival rate and the safety profile.

Non-small cell lung cancer (NSCLC) is the most frequent neoplasm worldwide and also represents the main cause of cancer death. However, it represents the main cause of death by cancer. The prognosis of survival at 5 years is poor, approximately 13-15%. Various studies suggest that patients who clinically present with a limited number of metastases, a term defined as oligometastatic disease, could have a better prognosis of survival with a radical treatment, than for their counterparts with a greater number of metastasis. The purpose of this study is to add more information to the current medical literature about the benefits in overall survival of radical treatment of oligometastatic disease in patients with NSCLC and equal or less than 5 synchronous metastases at the time of diagnosis. The outcomes of the study are to determine the global survival and progression-free survival in patients with synchronous oligometastatic (equal to or less than 5 sites) advanced NSCLC undergoing radical treatment of all metastatic sites and the primary tumor.

This study is a prospective, single arm, single center exploratory clinical research, to evaluate KN035 late treatment in patients with Multiple Primary tumors (MPC, Multiple Primary working) clinical benefit.In the study, all subjects meeting the criteria for inclusion will be enrolled in the KN035 treatment group, and patients cannot receive any other anti-tumor treatment during the study period.The primary endpoint of the study was defined as patients who could be assessed by imaging, and the optimal Objective Response Rate (ORR) based on RECIST 1.1 standard, while the secondary endpoint was safety (nci-ctcae 4.0), DCR (Disease Control Rate), DoR (Duration of Response), progression-free survival (PFS),1) Overall Survival and Overall Survival;The end point of the exploratory study was the correlation between different molecular types and the efficacy of immunotherapy.