View clinical trials related to Colorectal Neoplasms.
Filter by:Colorectal cancer (CRC) is one of the leading causes of cancer mortality in the United States, and African Americans (AfAms) still fare worse in CRC incidence and mortality compared to European Americans (EuAms). We propose to examine whether combining both fear-reduction and racially-targeted norm-based messages will increase at-home stool-based CRC screening receptivity and uptake for all African American regardless of level of racial identity. Given low return rates of at-home screening kits, we will also explore whether making an explicit commitment to return screening kits is associated with increased kit returns.
Currently, the approved third-line treatments for metastatic colorectal cancer (mCRC) include regorafenib, fruquintinib, and trifluridine/tipiracil(TAS-102). In recent years, several phase I/II studies evaluated the combination of TAS-102 and bevacizumab in mCRC patients who were refractory to standard therapies and showed promising antitumor efficacy and manageable toxicity. In this single-center phase II study, the investigators explored the efficacy and safety of irinotecan, TAS-102, plus bevacizumab in a third-line or beyond therapy for patients with mCRC.
Colorectal cancers (CRC) extending beyond the muscularis mucosae and invading the submucosa without extending beyond it are classified as pT1. Among these, a number of lesions presenting pejorative criteria, notably histopathological, have a significant risk of lymph node invasion, and are therefore candidates for partial colectomy with lymph node dissection. Tumors deemed to be at low risk of lymph node involvement can be treated by endoscopy alone. It should be noted that further surgical intervention is not without comorbid consequences, and that a significant proportion of post-surgical surgical specimens are free of cancerous lesions. The aim of this study is therefore to analyze the current histopathological criteria predictive of lymph node invasion, in order to more accurately select candidates for surgical management.
The management of colorectal cancer often requires oxaliplatin-based chemotherapy, either as part of curative treatment plans or exclusively in palliative situations. Oxaliplatin therefore plays a key role in the management of colorectal cancer. In addition to its digestive and hematological toxicity, oxaliplatin frequently induces chronic, often limiting, sensitive peripheral neuropathy. Only early discontinuation of oxaliplatin can limit the risk of clinically limiting neurotoxicity (grade ≥ 3). In oncology, managing the side-effects of treatment is an essential objective of supportive care, and is open to a variety of complementary medicines, including reflexology. This technique, derived from traditional Chinese medicine, involves stimulating reflex points on the arch of the foot.
CRC patients were enrolled and asked about their FDR contacts These FDRs were telephoned and enrolled and randomized to receive either written advice and verbal advice about their cancer risk and screening methods. These FDRs were telephoned after 2 weeks to evaluate their knowledge about CRC risk and method of screening to see which method of giving advice was better.
This is a phase II non-randomised and non-comparative study, in pretreated mCRC patients, progressed after at least 2 lines of prior chemotherapy for metastatic disease. Treatment plan: - First Stage: A total of 22 patients will be enrolled in the first stage to detect at least 3 patients free of progression at 16 weeks - Second Stage: If at least 3 patients will be free of progression at 16 weeks, an additional cohort of 11 patients will be enrolled in the second stage
This observational study aims to assess the predictive value of postoperative circulating tumor DNA (ctDNA) monitoring in evaluating the risk of recurrence in stage I-IV colorectal cancer patients. The study involves the collection of blood samples from patients who have undergone surgery for colorectal cancer. Sensitivity-enhanced molecular biology techniques are utilized to detect ctDNA in these samples. The correlation between ctDNA detection and the risk of recurrence is evaluated by analyzing patient follow-up data and clinical information. The findings of this study may contribute to the development of improved postoperative management strategies, such as identifying high-risk individuals and implementing additional treatment measures to reduce the risk of recurrence.
This is an observational study in which data already collected from people with metastatic colorectal cancer will be studied. Metastatic colorectal cancer (mCRC) is a cancer of the colon (large bowel) or the rectum (lowest part of the bowel just before the anus). Cancer is considered metastatic if it spreads to other parts of the body. The study drug, regorafenib, is already approved for doctors to prescribe to people with mCRC. It is an anti-cancer drug that blocks several proteins, called enzymes, which are involved in the growth of cancer. Other approved treatments for mCRC include TAS and bevacizumab. The combination of the anti-cancer drugs trifluridine and tipiracil is called TAS. Both TAS and bevacizumab prevent cancer cells from growing and multiplying. Some studies have shown that people with mCRC who took TAS along with bevacizumab, lived longer than when TAS was taken alone. This may be especially beneficial for patients who have tried other treatments before. However, there is limited knowledge about how and in which order these drugs are given. To better understand the impact of the order of taking regorafenib and TAS, with or without bevacizumab, more knowledge is needed about how well these treatments work in people with mCRC in European countries. The main purpose of this study is to learn more about the effects of treatment in people with mCRC who have already received regorafenib and TAS, with or without bevacizumab, one after the other (also called sequential treatment) in a different order. To do this, researchers will collect the following information: - how long participants received sequential treatment for mCRC - number of participants receiving further treatment for mCRC after the sequential treatment - number and type of further treatments for mCRC - how long did participants live (also called overall survival). The data will come from the participants' information stored in health records from 4 centers in 3 European countries including France, Italy, and Spain. The data will be from people with mCRC who started sequential treatment between January 2013 and December 2022 or until the most recent date that allows researchers to assess the participants' health for at least 3 months. In this study, only available data from routine care are collected. No visits or tests will be required as part of this study.
Colorectal cancer (CRC) is one of the most common cancer worldwide. Initiation and progression of CRC involve complex interactions among genetic, epigenetic and environmental factors. Given that hereditary and familial CRC only accounts for 2% to 5% of cases, environmental factors are the key triggers of CRC. Emerging evidence has indicated that gut microbes are an important environmental factor promoting CRC development. Gut dysbiosis has been shown to promote colorectal carcinogenesis in mice. Several individual bacterial species, such as the enterotoxigenic Bacteroides fragilis (ETBF), Fusobacterium nucleatum and Peptostreptococcus anaerobius, could exert carcinogenic effects by inducing direct DNA damage, oxidative damage and activating oncogenic signaling pathways. Recent studies have shown that the appendix plays an important role in maintaining homeostasis and biodiversity of gut microbiome by providing an ideal ecological niche for commensal bacteria and production of immunoglobulin A. Considering the key role of microorganisms in gastrointestinal pathophysiology, absence of appendix may result in disruption of microbiome homeostasis, which could potentially influence the risk of developing CRC. In terms of epidemiological evidence, the association of appendectomy with the risk of CRC development has been controversial, and to date no consensus has been attained. Although gut microorganisms could be a crucial pivot between appendectomy and risk of subsequent CRC development, the direct contribution of appendectomy and the underlying mechanisms are still largely unexplored. In this study, we aim to study 1. the association between appendectomy and colorectal cancer, and 2. the role of appendectomy in CRC risk through causing gut microbial dysbiosis.
Both preoperative anemia (PA) and perioperative blood transfusion can contribute on poorer outcomes after colon cancer surgery. Anemia is known to be associated with a slower recovery after surgery thus often worsening short-term results, and allogenic red blood cells transfusion (ARBT) are known to promote systemic inflammatory response and affect overall and cancer-specific survival. Patient Blood Management (PBM) systems are an evidence-based multimodal approach focused on safe and rational use of blood products, mainly through a proper PA assessment, a minimization of procedural blood loos and strict transfusion policies. Given the high prevalence of PA in patients with colorectal cancer (CRC), and its association with adverse events, it is expected that PBM implementation in said scenario carries a decrease in complications and an improved survival rate. Available literature to date supports preoperative anaemia screening and restrictive transfusion policies, nevertheless barriers exist that limit the expected implementation of PBM systems in colorectal surgery. The present study aims to evaluate feasibility of a PBM pathway implementation in a high-volume CRC Surgery Unit based on completion of anemia screening and treatment before surgery and changes of allogenic products use along the years. The objective is to estimate the impact of a proper preoperative optimization with iron intravenous infusion (IVI) on PA measured from changes Hemoglobin (Hb) levels in comparison to those of non-anemic patients.