View clinical trials related to Carcinoma, Squamous Cell.
Filter by:Historically metastatic squamous cell carcinoma in a cervical lymph node from an occult primary malignancy of the head and neck was evaluated with panendoscopy and biopsies of high risk areas, such as the base of tongue, nasopharynx, and tonsils. This diagnostic protocol identifies the primary malignancy in about 50% of cases. In recent years, the availability of CT has slightly increased the detection rate to 65% when used as an adjunct to the traditional work-up. Studies using PET as an adjunct are conflicting with detection rates ranging up to 75%. Currently, no prospective study has analyzed the role of the PET-CT fusion in the work-up of an occult primary malignancy of the head and neck. This study will compare the detection rate of the traditional work-up to a new protocol involving a pre-operative diagnostic PET-CT.
Head & Neck squamous cell carcinomas are the commonest cancers afflicting the developing countries. Traditionally surgery or radiotherapy alone in the early stages and surgery with postoperative radiotherapy in advanced stages have been the mainstay of treatment. Of late there has been a paradigm shift in the management of these cancers, particularly those of the oropharynx and laryngopharynx, where chemoradiation has been advocated as part of organ preservation protocol with good outcomes. Conventional radiotherapy involves the use of 2 or 3 field technique with or without compensators to encompass the volume at risk to radical doses of 66-70 Gy typically needed to sterilize gross disease. This strategy however is associated with considerable acute morbidity (mucositis, dysphagia, dermatitis) and debilitating late toxicity (xerostomia). Three dimensional conformal radiation therapy (3D-CRT) and intensity modulated radiation therapy (IMRT) have the potential to improve the dose distribution, with increased doses to the target volumes and reduced doses to surrounding normal structures, thereby improving the therapeutic ratio.
The purpose of this study is to determine the safety and tolerability of pharmaceutical compound 31510 in a topical cream when applied to in situ cutaneous squamous cell carcinoma and to obtain preliminary efficacy data for the treatment of in situ cutaneous squamous cell carcinoma by Compound 31510 topical cream.
RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming. The use of acitretin may stop cancer from growing in patients at high risk for basal cell carcinoma or squamous cell carcinoma of the skin. PURPOSE: This randomized trial is studying how well acitretin works in preventing skin cancer in patients at high risk for skin cancer.
This multicentered clinical trial is going to find out the radio-sensitization action of sodium glycididazole in radiochemotherapy for esophageal cancer.
Patients with advanced head and neck squamous cell carcinoma (HNSCC) may benefit from organ-preservation treatment based on combination of chemotherapy and radiotherapy without compromising disease-free and overall survival. In patients with initially advanced regional disease, there is controversy about the place of routine planned lymph node neck dissection after chemoradiotherapy, especially in responding patients without clinically invaded residual lymph nodes. There is uncertainty about the lymph nodes status after chemoradiation because the structural imaging modalities (CT, MRI) lack sensitivity and specificity : small positive lymph nodes are not detected, and residual large lymph nodes can be sterilized ( " ghosts nodes " with no sign of viable tumor cells at histopathology). Despite the absence of evidence based on prospective study, in numerous institutions currently, head and neck surgeons are quite reluctant to operate on for neck dissection patients with a complete clinical and radiological response following chemoradiation. Metabolic imaging of tumors using PET and the glucose analog FDG has proven effective in head and neck SCC, especially after treatment to differentiate disease progression from radiation-induced inflammation.1 Several studies have shown that the metabolic response could predict the presence or absence of residual tumor cells in the primary tumor as well as the probability of relapse .2-4 Conflicting results have been reported on the use of PET to predict the pathological nodal status after chemoradiation, with negative predictive values ranging from 14 % to 100 %.5,6 Discrepancies observed might be due to the fact that PET was performed at variable time points after the end of radiotherapy. Ideally, PET should be performed as late as possible so that tumor regrowth can begin and become detectable, increasing the sensitivity of the procedure.
Angiogenesis, the formation of new blood vessel from existing vessels, is essential for tumor growth and metastasis. Antiangiogenic therapies inhibit the growth of genetically stable endothelial cells, and most tumors should starve to death with little acquired resistance. Endostatin has been shown to block endothelial cell proliferation, survival, and migration. Antitumor activity of endostatin protein has been demonstrated in various murine and human tumors in animal model studies without any detectable toxicity. Endostatin gene therapy could directly express the highly bioactive protein in vivo by means of the mechanism of eukaryotic expression system as post-translational modification and folding, as well as overcoming the challenge of the long-term storage and the cumbersome daily administration of endostatin protein. E10A is a replication-deficient recombinant adenovirus containing a wild-type human endostatin transgene constructed from serotype 5 adenovirus (Ad5). Preclinical studies demonstrated that intratumoral injection of E10A provided significant tumor growth inhibition and sustained elevation of endostatin in blood and tumor tissue in hepatocellular carcinoma, nasopharyngeal carcinoma, and tongue cancer animal models. A Phase I clinical trial of E10A we conducted showed that repetitive intratumoral injection of E10A resulted in a small and sustained elevation of endostatin in blood and had a mild antitumor activities with very limited toxicity. The major toxicity was transient and manageable fever. A randomized Phase III trial in nonsmall-cell lung cancer showed endostatin improved response rate and time to tumor progression in combination to chemotherapy. Therefore, we designed a randomized phase II trial to explore the safety and effectiveness of E10A combined with chemotherapy in the treatment of patients with head and neck cancer.
The main objective of this study is to investigate whether administration of maintenance temozolomide following standard treatment could possibly prevent or delay the onset of brain metastases in patients with controlled non-small cell lung cancer (NSCLC).
The purpose of this study is to assess the safety and determine MTD (maximal tolerated doses) and recommended doses of neoadjuvant sorafenib (BAY 43-9006) and concurrent sorafenib, cisplatin and radiation in the locally advanced squamous cell carcinomas of the head and neck (SCCHN)patient population.
This is a Phase I, open-label, dose-escalation trial in patients with advanced/metastatic solid tumors refractory to standard therapy; tumors may include malignant melanoma, non-small cell lung cancer, renal cell carcinoma, and squamous cell carcinoma of the head and neck. These tumor types were selected because evidence of biological activity was observed in these tumor types in a Phase I study of JX-594 (Pexa-Vec) administered by intratumoral injection in patients with metastatic disease to the liver. Patients will receive treatment at one of five dose levels in a sequential dose-escalating design.