Active clinical trials for "Carcinoma, Squamous Cell"

Rationale: The benefit-risk ratio of surgery following concomitant radiochemotherapy and brachytherapy remains to be defined in cervical squamous-cell carcinoma (SCC) treatment. Scarce studies evaluated the interest of 18F-FDG-PET and MRI in the assessment of response to treatment before surgery. A positive predictive value of 75% was found in a small study making 18F-FDG-PET a promising tool to assess tumor response and guide surgical approach. Diffusion-weighted MRI was also described as an early and sensitive indicator in other diseases. Objectives: The main objective of this study is to evaluate the sensitivity of 18F-FDG-PET in the assessment of cervical cancer response to radiochemotherapy and brachytherapy. Secondary objectives focus on 18F-FDG-PET specificity and likehood ratios as well as diffusion-weighted MRI diagnostic performances. Method: We will conduct a prospective cohort study of 148 women with a stage IB to IIB2 cervical SCC recruited over 2.5 years in 24 centers in France. Each patient will undergo a 18F-FDG-PET and a diffusion-weighted MRI before surgery and 8 weeks after completion of the brachytherapy. The total follow-up duration (study participation) of patients will be 11 weeks : inclusion after completion of radiochemotherapy and brachytherapy, 8 weeks until 18F-FDG-PET and diffusion-weighted MRI, and 3 weeks until surgery. Expected results: 18F-FDG-PET and diffusion-weighted MRI could constitute a reliable tool to assess response to radiochemotherapy and brachytherapy in cervical SCC treatment. If so it could improve clinical practices and be helpful to decide whether the patient needs surgery or not after radiochemotherapy and brachytherapy.

Lung cancer is one of the leading causes of cancer-related death in Taiwan. Recently, there are more treatment methods available which result in increased patient survival. Although adenocarcinoma and squamous cell carcinoma were both categorized as non-small cell lung cancer (NSCLC), the recent advancement of target therapy implied that these two histologies behave differently (Shah NT, et al. 2005; Sandler A, et al. 2006). Radiation therapy is an important method for locally advanced non-resectable non-small cell lung cancer (NSCLC). Computed tomography (CT) is the mainstay for evaluating lung cancer. The advance of multi-row detector CT (MDCT) provides volumetric acquisition within a breath hold, and enables detailed evaluation of tissue and organ perfusion with excellent resolution. Using this new technique with image post processing, excellent spatial resolution and functional perfusion information can be obtained simultaneously. Therefore, the purpose of this study is to explore not only the longitudinal change of lung cancer eligible for radiation therapy (including concurrent, sequential chemoradiotherapy and high-dose radiation therapy) but also comparison of adenocarcinoma and squamous cell lung cancers using perfusion MDCT. Total twenty patients with histopathologically proved adenocarcinoma or squamous cell carcinoma will be enrolled in this study and receive longitudinal study for perfusion MDCT evaluation before, during radiation therapy and in early and late phases after complete radiation therapy. Dynamic perfusion will be used for processing the image data, and quantitative parameters such as tumor blood volume and permeability etc will be derived. From this study, we expect to understand the change of tumor vascularity after radiation therapy and characters of treatment response of adenocarcinoma and squamous cell carcinoma in addition to the change of tumor size.

Fifty patients with squamous cell carcinoma of the larynx T1 or T2N0 will therefore have a 99mTc lymphoscintigraphy per operative. The identified sentinel node will be removed along with the other lymph nodes of the selective group II and III recess. Sentinel lymph node staging alone and complete dissection with routine anatomical pathology will be compared If this technique is reliable it will make a therapeutic de-escalation in the treatment of small tumors of the larynx by limiting the ganglionic gesture in the patients whose sentinel node is free from metastasis and also to better choose the treatment in case of lymph node involvement

This is a Phase II trial of definitive chemoradiotherapy (CTRT) given with the protease inhibitor,Nelfinavir (NFV), in patients with locally advanced head and neck. Eligible patients will receive a "lead-in" period of Nelfinavir (1250 mg po bid) for 7-14 days prior to initiation of CTRT. Nelfinavir will then be given concurrently with platinum-based chemotherapy and radiation therapy (planned total dose of 70 Gy over 7 weeks).

There is a need for more treatment options for patients with recurrent squamous cell cancer of the head and neck (SCCHN). These tumors usually have a variety of genetic defects that include disruption of the p53 pathway, a pathway that would ordinarily work to prevent the development of tumors. In this study the transfer of the p53 gene to tumor cells using a modified adenovirus (INGN 201) in combination with chemotherapy (cisplatin and fluorouracil) will be compared to chemotherapy with cisplatin and fluorouracil in patients who have failed surgery and radiotherapy.

Carcinoma of the esophagus is the among the most common cancers in Indian population. While adenocarcinoma is more common in western countries, in India squamous cell carcinoma is the more frequent form. Surgery is the standard treatment in resectable lesions, but survival is poor. Adjuvant and neoadjuvant treatment therapy is used with an aim to improve the results. Though few randomized trials have addressed the issue of neoadjuvant chemoradiotherapy, the methodology was inhomogeneous and the populations studied were different. The investigators will be conducting a randomized controlled trial in patients with squamous cell carcinoma of the esophagus. Preoperative chemoradiation followed by surgery will be compared with surgery alone.

Patients with locally advanced suqamous cell carcinoma of the head and neck region receive a hypoxia scan either by magnetic resonance tomography, computed tomography or fluoromisonidazole (FMISO)-PET-CT. Patients presenting with hypoxia are randomized into standard therapy consisting of intensity modulated radiotherapy (IMRT) with 70 Gy plus either 5-fluorouracil/mitomycin C or cisplatinum (Arm A) or a dose escalation of 10% (77Gy) to the hypoxic volume applied via simultaneous integrated boost in addition to the standard treatment (Arm B).

In this study, participants with esophageal squamous cell carcinoma will receive preoperative chemoradiotherapy with paclitaxel,carboplatin and pembrolizumab then undergo surgery. The primary study hypothesis is that adding pembrolizumab will increase complete pathologic response rate at surgery.

The purpose of this study is to determine the value of novel non-invasive medical imaging methods for detecting the spread of head and neck squamous cell carcinoma to the lymph nodes in the neck by comparing their results to findings at the time of surgery.

There is a need for more treatment options for patients with recurrent squamous cell cancer of the head and neck (SCCHN). These tumors usually have a variety of genetic defects that include disruption of the p53 pathway, a pathway that would ordinarily work to prevent the development of tumors. In this study the transfer of the p53 gene to tumor cells using a modified adenovirus (INGN 201) will be compared to methotrexate in patients who have failed surgery, radiotherapy and chemotherapy with platinum or taxanes.