Active clinical trials for "Carcinoma, Squamous Cell"

The purpose of this study is to evaluate if the addition of valproic acid to standard platinum-based chemoradiation as definitive treatment of locally advanced Head and Neck squamous cell carcinoma can improve treatment outcomes, such as response rate.

The purpose of this study is to determine whether the use of fibrin sealant reduces post-operative drainage following groin and axillary lymph node dissection.

This study is being performed utilizing two cycles of Paclitaxel and Carboplatin, plus low doses radiation as initial therapy prior to other treatment (surgery or radiation). The study is assessing if utilization of low doses radiation as a chemoenhancer will further increase the response rate seen with initial therapy.

The purpose of this study is to assess the feasibility of avoiding opposite side neck radiation therapy in patients with clearly one side squamous cell cancer of the head and neck. We aim to assess the reduction in treatment volume (amount of radiation therapy required), and the resultant xerostomia and mucositis, with the delivery of unilateral neck radiation therapy.

The purpose of this study is to investigate the association between time to treatment (defined as date of pathological diagnosis to date of start treatment) and disease free survival in patients with high risk cutaneous squamous cell carcinoma in the head-neck region.

According to the most recent guideline of the National Comprehensive Cancer Network (NCCN), desmoplasia is considered to be a very high risk factor for recurrence, metastasis and death in cutaneous squamous cell carcinoma (cSCC). The presence of desmoplasia is assessed by dermatopathologists during histological examination of cSCCs. However, the inter-observer agreement is between dermatopathologists in the assessment of desmoplasia is unclear. Studies on inter-observer variability in the assessment of differentiation grade in cSCCs showed that there is only a weak to moderate agreement among dermatopathologists in the assessment of differentiation grade (2-4). This study aims to investigate the interobserver agreement of desmoplasia between dermatopathologists. In this prospective study, 50 cSCCs will be assessed for desmoplasia by at least eight dermatopathologists using a predefined definition.

Head and neck squamous cell carcinoma (HNSCC) is a lethal solid malignancy with 5 year survival estimates of approximately 50%, and is associated with a high rate of systemic immune impairment as well as evasion of a tumor specific immune response. Preclinical and clinical data have shown that phosphodiesterase 5 (PDE5) inhibitors (tadalafil) can be used to augment immune function in HNSCC patients through inhibition of the cancer-induced myeloid derived suppressor cells (MDSCs). A multi site phase II, randomized, prospective, biomarker endpoint trial to determine optimum timing and design of PDE5 antitumor immunotherapy (tadalafil) in conjunction with conventional therapy for HNSCC. 40 patients with biopsy proven HNSCC will be randomized to receive tadalafil (n=25) or placebo (n=15) for at least 10-14 days before starting conventional therapy and continuing until 90 days after completion of conventional therapy. Tumor-specific T cell responses will be assessed using HNSCC cell lines, in blood collected before initiation of tadalafil/placebo and at 60 and 90 days after completion of conventional therapy. Number and function of MDSC and Treg cells will be assessed before and at 60 and 90 days after completion of conventional therapy. Prevnar 13® vaccine will be administered 10-14 days after commencing tadalafil/placebo (before conventional therapy begins) and again at 60 days after completion of conventional therapy. Vaccine-specific responses assessed at 60 and 90 days post-conventional therapy will be used to measure the ability of tadalafil to augment immune response to vaccine.

The investigators hypothesize that a low number of SCC in OTR will metastasize.

Cervical cancer occurs commonly in HIV-infected women in South Africa. These women have poor response to treatment of cervical cancer precursors. This study will test whether giving the quadrivalent vaccine to women prior to surgical treatment of the cervical cancer precursor will improve outcomes. We hypothesize that pre-treatment HPV vaccine will result in a reduced occurrence or cervical cancer precursors in follow-up.

Patients with MGIN, HGIN or flat-type early SCCA of the esophagus will be treated on 3 month intervals with Radiofrequency Ablation (RFA) until complete eradication (CR: no MGIN or worse in the biopsies) will be achieved. All patients will undergo an endoscopy at 12 months after baseline, and the patients with CR will undergo annual endoscopy with biopsies for 5 years.