There are about 5012 clinical studies being (or have been) conducted in Mexico. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The purpose of the main study is to describe the incidence of influenza virus and respiratory syncytial virus (RSV) in adults hospitalized with acute respiratory tract infection (ARTI) during the influenza/RSV season, and the purpose of the substudy is to describe the clinical and economic burden in adults hospitalized with confirmed influenza/RSV infection.
Breast cancer has become a major public health problem in Latin America, as it is the most common form of cancer among women. Women are more likely to develop breast cancer at younger age, and to be diagnosed at an advanced stage compared to western women. Over the past twenty years, the mortality from breast cancer in Latin America has also been increasing very rapidly, and is currently the leading cause of cancer mortality. Little is known on specific risk factors for premenopausal breast cancer in general, and in Latin America in particular. There is a lack of specific knowledge on tumor molecular and pathological characteristics of breast cancer in Latin America premenopausal women, and this has major consequences on cancer treatment and survival. To improve our understanding on determinants of breast cancer incidence and mortality in young Latin America women and support preventive actions, we implemented an international, population-based multi-center study in Latin America: the PRECAMA study (Molecular Subtypes of Premenopausal Breast Cancer in Latin American Women (PRECAMA): a multicenter population-based case-control study). PRECAMA is coordinated by the International Agency for Research on Cancer (IARC), and is conducted within 4 Latin American countries: Mexico, Costa Rica, Colombia and Chile. Major aims of the project are the following: 1. To develop a multi-centric population-based case-control study on breast cancer in premenopausal women in several countries in Latin America with structured collection of individual, clinical, pathological information and biological specimens, according to strictly controlled protocols 2. To characterize, in these populations, the subtypes of premenopausal breast cancer on the basis of their molecular and pathological phenotypes 3. To improve the identification of specific endogenous/exogenous factors, and disentangle the interplay of these different factors with regard to breast tumor subtypes. 4. Provide advanced training, induce a structuring effect on the breast cancer research community in Latin America and influence the public health agenda regarding the management of breast cancer. The results of our study will be of utmost importance to understand the etiology of breast cancer in Latin America countries, and would provide important information on the role of modifiable exposures for breast cancer prevention.
From the global burden of Cervical Cancer (CC), 85% occurs in developing countries, representing 12% of cancer in women. In Mexico CC ranks second in incidence and mortality among women. The National Institute of Cancer in Mexico (lNCAN) receives annually about 500 patients with CC, 80% of which are diagnosed with locally advanced disease. Furthermore, 10 to 20% of these present kidney deterioration. The main reason for kidney disease is ureteral obstruction, other causes include age and comorbidities, such as diabetes and hypertension. The standard treatment for locally advanced disease consists in concomitant chemo-radiotherapy based on cisplatin (QT-RT), followed by brachytherapy, with an absolute benefit of 10%. However, the use of cisplatin in patients with renal disease may be questionable, considering it is a nephrotoxic treatment. Given that renal dysfunction limits the standard treatment efficiency because of the widely known nephrotoxicity of cisplatin, in most Cancer Centers of our country, patients with renal dysfunction receive only radiation therapy, even though it has proven less effective than concomitant QT-RT, limiting disease-free and overall survival of these patients. Venook et al. used gemcitabine as a radiosensitizer in patients with cancer and renal dysfunction. Our group, has observed encouraging results using gemcitabine as an alternative to cisplatin in concomitant treatment with radiotherapy, in CC patients with renal insufficiency. 89% of patients had complete response and improvement in renal function, with an enhanced creatinine clearance after treatment. Therefore, it is necessary to explore the safety of gemcitabine as an alternative treatment for CC patients with locally advanced disease and renal deterioration. We propose this clinical trial to assess the safety of treatment with gemcitabine and specifically on renal function in patients with renal deterioration. It is important to take into consideration that CC in advanced stages produces pain, transvaginal fetid discharge and general discomfort. It also causes side effects secondary to renal failure such as nausea, vomiting, fatigue, anemia, among others. These effects have a significant impact on the quality of life of these patients. Cancer treatment and its side effects, besides the implications of a nephrostomy catheter or ileostomy bag, determine the deterioration in the quality of life of the patient, during and sometimes after treatment. Thus it is of utmost importance to evaluate the factors that could help improve the quality of life of patients and explore the factors that deteriorate it. This clinical trial aims to generate scientific evidence to help make the best decisions concerning the treatment of patients with cervical cancer and renal impairment, and the impact on their quality of life.
Randomized, open-label, multi-center, comparative trial to assess the efficacy and safety in immunocompromised subjects with acyclovir resistant or acyclovir susceptible mucocutaneous HSV infection, treated with pritelivir 100 mg once daily (following a loading dose of 400 mg as first dose to rapidly reach steady-state plasma concentration) or investigators choice, which can be either foscarnet 40 mg/kg every 8 hours or 60 mg/kg every 12 hours, or Cidofovir iv 5 mg/kg body weight given once weekly, or Cidofovir 1% or 3% topical applied 2 to 4 times daily, or Imiquimod 5% topical 3 times per week) (provided the drug is nationally approved).
Treatment for patients with mutation in the epidermal growth factor receptor (EGFR) with specific domain tyrosine kinase inhibitors (TKIs) has given place to objective clinical response, increase in progression-free survival (PFS) compared to cytotoxic chemotherapy. However, despite clinical success with different TKIs, most patients eventually develop acquired resistance to these agents after an average period of time of 10 months. Recently metformin, an oral hypoglycemic agent, has been associated with reduction in the global risk of incidence and mortality of different types of cancer, by exercising anti-tumor properties. Its role as a chemo-preventive and adjuvant drug in overcoming acquired resistance to chemotherapy, target therapy and immunotherapy in NSCLC is still under discussion. However, preclinical data support the role as an adjuvant drug in the treatment of NSCLC in combination with chemotherapy or EGFR-TKIs. This evidence led to examine the effects of metformin in combination with EGFR-TKIs in a NSCLC cellular line panel, obtaining a different sensibility to the unique use with EGFR-TKIs. The combination of metformin and TKIs reduced the colony forming capacity and proliferation, and induced a huge pro-apoptotic effect in NSCLC cellular lines and resistance in EGFR-TKIs. This suggests that metformin may reduce the resistance to TKIs. A retrospective study in patients from our institution from 2008 to 2014, showed significant clinical benefit in patients who used metformin, improving the global survival. Based on these considerations, we propose a phase II randomized study to assess the effect and safety of metformin in combination with TKIs as second line therapy in patients with NSCLC in advanced stages with EGFR mutation. The main objective of this study is to assess the progression-free survival period in patients with advanced non-small cell lung cancer in treatment with TKIs and metformin versus TKI alone.
The purpose of this study is to determine whether trimethoprim/sulfamethoxazole is effective in preventing serious infectious complications (those that require hospitalization or lead to death) in patients with lupus erythematosus that receive intermediate or high dose steroids.
Portal vein thrombosis (PVT) is defined as an obstruction of the portal vein. The prevalence of PVT is 10-25% and incidence is about 16% in cirrhotic patients. PVT leads to increased intrahepatic resistance, decreased portal velocities, splanchnic vasodilatation, and stagnant flow. Portal vein recanalization (PVR) with transjugular intrahepatic portosystemic shunt (TIPS) is aimed at restoring main portal vein (PV) flow in chronic PVT. In this study, we will review the safety and outcomes of this approach.
The purpose of this study is to determine if the oral supplementation with curcumin reduces proteinuria, improves the redox and pro-inflammatory state in patients with chronic kidney disease associated to Diabetes mellitus.
The purpose of this study is to describe the incidence, clinic characteristics, biological and suvirval in Lymphoblastic Leukemia patients in Mexico City reference hospitals.
The purpose of this study is to investigate the short and long term clinical and cognitive effects of repetitive Transcranial Magnetic Stimulation (rTMS) at 5 Hz and/or 10 Hz frequencies on the left dorsolateral prefrontal cortex in cocaine dependent patients and to examine possible changes in brain structure and functional connectivity associated with this intervention.