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NCT ID: NCT01030458 Completed - Blood Pressure Clinical Trials

Newer Versus Older Antihypertensive Agents in African Hypertensive Patients (NOAAH) Trial

NOAAH
Start date: September 2010
Phase: Phase 4
Study type: Interventional

The purpose of this study is to compare the blood pressure lowering efficacy of a treatment regimen based on a dihydropyridine calcium-channel blocker combined with an angiotensin II type-1 receptor blocker with the recommended treatment regimen based on a low-dose thiazide diuretic combined with a beta-blocker.

NCT ID: NCT00944723 Completed - Zinc Deficiency Clinical Trials

Impact of Mass Zinc Fortification Programs on Plasma Zinc Concentration

Start date: August 2009
Phase: Phase 4
Study type: Interventional

The purpose of the study is to evaluate the use of plasma zinc concentration for assessing the impact of mass zinc fortification programs.

NCT ID: NCT00944398 Completed - Zinc Deficiency Clinical Trials

Impact of Targeted Zinc Fortification Programs on Plasma Zinc Concentration

Start date: January 2009
Phase: Phase 4
Study type: Interventional

The purpose of the study is to evaluate the use of plasma zinc concentration for assessing the impact of targeted zinc fortification programs.

NCT ID: NCT00893906 Completed - Influenza Clinical Trials

Inactivated Influenza Vaccine Effectiveness in Tropical Africa

Start date: May 2009
Phase: Phase 4
Study type: Interventional

Influenza, a highly communicable acute respiratory disease, is one of the major infectious disease threats to the human population. In Africa, information on the occurrence of influenza and its disease burden is seriously lacking. Such data would be important in determining the contribution of influenza to the more than two million annual pneumonia deaths among children globally, mostly in the developing world, and the potential number of deaths that could be prevented by influenza vaccination. A single dose of trivalent inactivated influenza vaccine (TIV) is 70 to 90 percent effective in preventing influenza in healthy older children and young and middle-aged adults, but is less efficacious in young children and the elderly. Young children who suffer substantial influenza morbidity and are unlikely to have pre-existing immunity should receive two doses of TIV to provide adequate immunity. Because family studies of influenza transmission conducted during the 1970's found children to be the main introducers of influenza into households, vaccination of children may decrease the chances of spreading influenza to contacts. Mass vaccination of schoolchildren has been correlated with reduced respiratory illness in unvaccinated persons suggesting that immunization of children on a larger scale can affect community epidemics. In temperate industrialized countries with seasonal disease, influenza vaccine is given annually, prior to the influenza season, and generally targeted to individuals with the highest risk of severe disease. Influenza prevention strategies may need to differ in tropical developing countries due to a variety of reasons. Given the varying influenza circulation patterns, it is unknown which hemisphere vaccine formulation will provide year-round protection against the diverse strains that may exist in tropical countries. Persons residing in developing countries also may have nutritional deficiencies or underlying diseases and infections that affect vaccine immunogenicity. Consideration must be given to programmatic issues as well. Adolescent and adult preventive health services are poorly developed in many countries, and thus a strategy that targets children may be the most feasible option. In addition, vaccinating children may be the most cost-effective option, as it has the potential to provide direct benefit to those vaccinated, as well as indirect benefits to unvaccinated members of the population. Thus, an influenza vaccine effectiveness study in a tropical developing country population will help to elucidate burden of seasonal influenza and may inform optimal use of vaccine for either seasonal and pandemic situations. Thus, this study in Senegal will to evaluate the direct effects of TIV in reducing the occurrence of laboratory-confirmed influenza among children who receive it as well as the potential indirect effects experienced by the population as a result of reducing transmission among children.

NCT ID: NCT00870649 Completed - Clinical trials for Schistosoma Haematobium

Efficacy of Bilhvax in Association With Praziquantel for Prevention of Clinical Recurrences of Schistosoma Haematobium

Bilhvax3
Start date: February 2009
Phase: Phase 3
Study type: Interventional

Objectives:To reduce the risk of S. haematobium pathology recurrences during the three years following vaccine administration and to control the safety of this therapeutic strategy in children exposed to urinary schistosomiasis. Methodology : Phase III trial, self-contained, randomized, double blind, in two parallel groups receiving 3 injections at D0, W4, W8 and a boost at W52, one group receiving "Bilhvax", the other one placebo, in S. haematobium infected children pretreated by two doses of PZQ (at W9 and W8) Patient included : Infected school children, 6 to 9 years of age. Primary objective : To demonstrate a significant delay of recurrence of the schistosomiasis pathology in vaccine group compared to control group in the 3 years period following the first administration (between D0 and W152). Secondary objective : safety Duration : February 2009 to March 2012

NCT ID: NCT00731471 Completed - Tuberculosis Clinical Trials

A Phase I Study of a New Tuberculosis (TB) Vaccine, MVA85A, in Healthy Volunteers With HIV

Start date: August 2008
Phase: Phase 1
Study type: Interventional

This is an open Phase I study of a candidate TB vaccine, MVA85A, in healthy subjects who are infected with HIV. It is designed to study the safety and immunogenicity of the vaccine.

NCT ID: NCT00573001 Completed - HIV Infections Clinical Trials

Evaluation of 4 New Simplified Antiretroviral Treatments in Naive HIV-1 Infected Patients in Africa (ANRS 12115 DAYANA)

DAYANA
Start date: July 2008
Phase: Phase 3
Study type: Interventional

The goal of this trial is to demonstrate that new treatments are as effective as a reference triple-agent regimen in driving plasma viral load below the detection limit early during treatment (16 weeks). These simplified treatments involve fewer tablets and intakes, fixed-dose combinations, and also radically new strategies such as boosted protease inhibitor and tenofovir.

NCT ID: NCT00540410 Completed - Malaria Clinical Trials

Cohort Study in Senegal Comparing Artesunate + Amiodaquine in the Treatment of Repeated Uncomplicated Plasmodium Falciparum Malaria Attacks

Start date: September 2007
Phase: Phase 4
Study type: Interventional

Primary objective: to demonstrate the non-inferiority of PCR adjusted adequate clinical and parasitological response at D28 of artesunate + amiodaquine versus artemether + lumefantrine, based on the first malaria attack of each subject. Secondary objectives: For the first attack: To compare the two groups of treatment in terms of: - D14 efficacy - Parasitological and fever clearance - Clinical and biological tolerability - Evolution of gametocyte carriage - Cardiac tolerability (QTc) For the repeated attacks: To compare the two groups of treatment in terms of: - D14 and D28 clinical and parasitological effectiveness (PCR adjusted) - Clinical and biological tolerability - Proportion of patients without fever at D3 - Proportion of patients without parasite at D3 - Compliance - Impact on anaemia During the total follow-up of the cohort: To compare the two groups of treatment in term of: - Treatment incidence density - Impact of repeated treatment on clinical and biological safety - Impact of repeated treatment on hearing capacity

NCT ID: NCT00529620 Completed - Malaria Clinical Trials

Three Alternative Drug Regimens for Malaria Seasonal Preventive Treatment in Senegal

Start date: September 2007
Phase: Phase 3
Study type: Interventional

The purpose of this trial is to compare the acceptability, efficacy and safety of three alternative drug regimens for use for seasonal Intermittent Preventive Treatment to prevent malaria in children. Children aged 2 months to 5 years will be randomized to receive IPT with one of three regimens during the transmission season: sulfadoxine-pyrimethamine (SP) plus amodiaquine, show to be highly effective for IPT in a recent trial; SP plus piperaquine, used for malaria prophylaxis in China for many years; or Duocotexcin (a combination of piperaquine with an artemisinin).

NCT ID: NCT00481767 Completed - Clinical trials for Human Papillomavirus (HPV) Infection

Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Human Papillomavirus (HPV) Vaccine (GSK580299) in Healthy Female Subjects 10-25 Years of Age.

Start date: October 1, 2007
Phase: Phase 3
Study type: Interventional

Cervical cancer is the second most common cancer among women worldwide. Approximately 500 000 new cases are reported each year worldwide, from which 83% occur in developing countries. The incidence of cervical cancer varies depending on the region of the world. Africa has some of the highest age-standardized incidence and mortality rates in the world (Eastern Africa 42.7 and 34.6 per 100 000; Southern Africa 38.2 and 22.6 per 100 000; Western Africa 29.3 and 23.8 per 100 000; Middle Africa 28.0 and 23.0 per 100 000). As in the majority of developing countries, organization of cervical cancer screening programs in Africa is difficult to manage, especially in rural areas. HPV prophylactic vaccination could therefore clearly and efficiently decrease the incidence of cervical cancer. The current study is designed to assess the immunogenicity and safety of GSK Biologicals' HPV-16/18 L1 AS04 vaccine in female subjects enrolled from multiple countries in Africa. Ideally, HPV vaccination should be performed before onset of sexual activity, since studies have shown that acquisition of high-risk HPV occurs soon after sexual debut. This study will therefore be performed in subjects aged 10 to 25 years of age.