View clinical trials related to Oral Cancer.
Filter by:There is no consensus on the indication of postoperative radiotherapy for early stages oral and oropharyngeal squamous cell carcinoma with complete pathological resection and no neck node metastasis, but most of the institutions do not give any post-operative treatment. Loco-regional control rates range between 80-85% at five years. Surgical margins molecular analysis for microsatellite instability (MSI) marker could help to select the high-risk patients who should receive postoperative radiotherapy. We expect to include 120 patients in five years and have 60 informative tumors for MSI marker. Patients with positive molecular margins will receive postoperative radiotherapy (50 Gy). Patients with negative molecular margins will not receive radiotherapy.
Cervical nodal metastasis is the single most important prognostic factor in head and neck cancers. Appropriate management of the neck is therefore of paramount importance in the treatment of these cancers. While it is obvious that the positive neck must be treated, controversy has always surrounded the clinically node negative neck with respect to the ideal treatment policy.The situation is difficult with regards to early cancers of the oral cavity (T1/T2). These cancers are usually treated with surgery where excision is through the per-oral route. Elective neck dissection in such a situation is an additional surgical procedure with its associated costs, prolonged hospitalization and may be unnecessary in as high as 80% of patients who finally turn out to be pathologically node negative. Should the neck be electively treated or there be a wait and watch policy? Current practice is that the neck is always addressed whenever there is an increased propensity to cervical metastasis or when patient follow-up is unreliable. There is clearly a need therefore for a large randomized trial that will resolve the issue either way once and for all. Primary Objective: To demonstrate whether elective neck dissection (END) is equal or superior to the wait and watch policy i.e. therapeutic neck dissection (TND) in the management of the clinically No neck in early T1 /T2 cancers of the oral cavity. Secondary Objective: 1. Does Ultrasound examination have any role in the routine initial workup of a node negative patient? 2. How are patients ideally followed up -does sonography have a role or is clinical examination sufficient. 3. Is assessment of tumor thickness by the surgeon at the time of initial surgery accurate -Is there a correlation 4. Identify histological prognostic factors in the primary that may help identify a sub-set of patients at an increased risk for cervical metastasis.
Clarify the relation of microtubule-associated protein 2 and cell migration
Investigate the role of SDF-1/CXCR4 in the metastasis of oral squamous cell carcinoma
The purpose of this study is to investigate the role of lymphangiogenesis in the metastasis of head and neck cancer.
The role of vascular endothelial growth factor-C (VEGF-C) and its receptors induced lymphangiogenesis and host inflammatory responses on the carcinogenesis of oral cancers and premalignant lesions
Altered fractionated radiotherapy and concomitant radio-chemotherapy have been shown to be two possibilities for improving efficacy of radiotherapy in locally advanced head and neck carcinomas. In this multicentric study, we tested the hypothesis that accelerated radiotherapy could be delivered concomitantly with conventional high doses of CDDP-5FU, aiming to improve both local control and on distant metastases as compared to very accelerated radiotherapy.
This is a multicentric randomized phase III trial comparing intensity-modulated radiotherapy (75 Gy) plus cisplatin versus conventional radiotherapy (70 Gy) plus cisplatin in patients with stage III-IV squamous cell carcinoma of oral cavity, oropharynx or hypopharynx. The main end points are the rate of locoregional control and the rate of xerostomia at 2 years.
This is a multicentric randomized phase III trial comparing conventional radiotherapy with concomitant chemotherapy versus accelerated radiotherapy with concomitant chemotherapy versus very accelerated radiotherapy in patients with stage III-IV head and neck squamous cell carcinoma. The main end point is the event free survival.
Expression of hypoxia-inducible factor-α in oral precancers and cancers