There are about 18 clinical studies being (or have been) conducted in Guinea. 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 study determines the diagnostic performance and cost of rapid diagnostic tests (RDTs) performed on human African trypanosomiasis clinical suspects in peripheral health centres, whether or not followed by serological and/or molecular tests on dried blood spots done at regional reference centres
Recent advances in molecular diagnostics of tuberculosis, especially the GeneXpert Mycobacterium tuberculosis/Rifampicin test have reduced the time to diagnose Rifampicin Resistant Tuberculosis (RR-TB) but only rifampicin resistance is diagnosed, leading to presumptive diagnosis of resistance to isoniazid and maybe other drugs. Thus in low and middle income countries, most drug sensitivity testing relies on phenotypic drug resistance testing, which takes up to 4 months. In addition, currently, culture on monthly sputum samples is recommended by the World Health Organization for follow-up of Rifampicin Resistant Tuberculosis patients under treatment. Unfortunately, culture is often not locally available and samples need to be transported from field to culture laboratories. The associated transport delays lead to high rates of contamination and false negative culture, particularly in laboratories in low resource settings. Many gaps for the diagnosis and management of RR-TB patients still need to be addressed and the DIAMA project (DIAgnostics for Multidrug resistant tuberculosis in Africa) study aims to address some of them.
FEVRIER study is an observatory of hospitalizations in cardiology units in sub-Saharan Africa.
The purpose of this study is to evaluate immunogenicity, epidemiological efficacy and safety of medicinal product GamEvac-Combi - Combined Vector-Based Vaccine against Ebola Virus Disease, 0.5 ml+0.5 ml/dose
The purpose of this study is to evaluate the safety and immunogenicity of three vaccine strategies that may prevent Ebola virus disease (EVD) events in children and adults. Participants will receive either the Ad26.ZEBOV (rHAd26) vaccine with a MVA-BN-Filo (MVA) boost, or the rVSVΔG-ZEBOV-GP (rVSV) vaccine with or without boosting, or placebo.
Background: Some people have Ebola virus in their body for months after they recover from Ebola virus disease. Some may have health problems from the virus while others are fine. These people may be able to pass the virus to others. There are currently no drugs for people who have survived Ebola virus disease but still have the virus in their body. A new drug, GS-5734, might help get rid of Ebola virus in semen. Objective: To test if GS-5734 helps get rid of Ebola virus in semen and is safe for humans. Eligibility: Men who participated in the Ebola survivor study (PREVAIL III) and have evidence of the Ebola virus in their semen Design: Participants will be screened with: Questions Physical exam Eye exam Blood tests 2 semen samples if they have not had it tested recently Participants must live near the study site in Liberia for 6 months. Participants will be put into 1 of 2 study groups. They will have an infusion of either GS-5734 or a placebo every day for 5 days. A plastic tube is put into an arm vein. The infusion lasts 1 hour. Participants will be observed for 1 hour after. They will provide a semen sample on infusion day 4. After the infusions, participants will have 5 visits in the first month, then 1 per month for 5 more months. These include giving a blood and semen sample. Blood tests are performed before and after each infusion and the last visit (5 month visit) will also include an eye exam. When the study is over, if the study drug works and is safe, participants who got the placebo can get the study drug.
This study aims to evaluate favipiravir high dose tolerance in male survivor of Ebola Virus Disease (EVD) with Ebola Virus (EBOV) RNA in semen. This is a dose escalation study with 3 cohorts of 6 patients, each dose level including 2 sentinel patients.
Obstetric fistula, also called vaginal fistula, is a serious medical condition which affects women in low income countries. Despite the strengthening of research on fistula, there is little data on the follow-up after fistula repair. The objective of this study is to analyse the factors associated with the recurrence of fistula and the outcomes of pregnancy following fistula repair in Guinea. It will target women who got a closed fistula at discharge after repair in 2012/2015 at three fistula repair sites supported by the Fistula Care Project in Guinea (Kissidougou Prefectoral Hospital, Labé Regional Hospital and Jean Paul II Hospital of Conakry). The outcomes of interest are fistula recurrence and pregnancy. The predictors of interest will include patient characteristics, fistula characteristics, the context of repair and the context of reintegration. Participants giving an informed consent after a home visit by the Fistula Counsellors who managed women during surgery will be interview at enrolment and every six month from inclusion. The study duration is estimated at 48 months (January 2012 to March 2016) including the retrospective part. A sample size of 364 women will estimate the recurrence of fistula with a plus/minus 2% margin of error (width of confidence interval is 4%) and 95% confidence interval and is sufficient to estimate the rate of pregnancy with a two-sided 95% confidence interval and 10% precision. The cumulative incidence rate of fistula recurrence will be calculated using Kaplan-Meier methods and the risk factor analysis will be performed using adjusted cox regression. For the outcomes of pregnancy, Pearson's Chi Square (χ2) will be used to compare proportions of pregnancy outcomes between potential predictors and logistic regression models will be used and associations will be reported as risk ratios with 95% confidence intervals. Analysis will be done using STATA version 13 (STATA Corporation, College Station, TX, USA) with a level of significance set at P<0.05.
Background: - Ebola is a viral infection that can spread quickly and causes life-threatening disease. Right now there is an Ebola outbreak in many countries in West Africa. There are no approved treatments for Ebola. But possible treatments are being developed. Researchers need to study these treatments to see if they help people get better. Objective: - To identify possible Ebola treatments. Also, to learn if adding 1 or more experimental drugs to advanced Ebola care can reduce the risk of death. Eligibility: - People who have recently been diagnosed with Ebola, usually by a test called the Polymerase Chain Reaction (PCR), and have been hospitalized in an isolation unit for treatment. Design: - Participants will be randomly assigned to Group A or B. Both groups will get advanced level care. One group will also get an experimental drug. - Participants may have blood tests. They may have another PCR test. - Researchers will try to learn how the participant got Ebola. - Participants put in the experimental drug group may start taking medicine within 24 hours of enrollment. It may be given by mouth or intravenously. Additional doses may be needed. - Participants may have a series of timed blood tests over the first 24 to 48 hours after they take the medicine. - Blood will be drawn frequently. Other body fluids (urine, stool, vaginal fluid, etc.) may also be collected. - Participants will be followed for up to 60 days. They may be evaluated for any long-term effects of the experimental treatment(s). They may be asked to return for 1 or more outpatient visits. - For consenting participants, follow-up will be extended for up to one full year past Day 58 with contact/visits every 1-3 months to assess for a history of signs or symptoms potentially consistent with late onset of virologic relapse syndrome.
This is an emergency, phase 2/3, open-label, non-randomized, clinical trial that will evaluate Convalescent Plasma (CP) added to standardized supportive care (SC) in patients with confirmed Ebola Virus Disease (EVD). No patient will be refused CP when compatible products are available and all efforts will be made to maximize CP availability during the study. EVD patients recruited during the period before CP becomes available or for whom no compatible CP is available will be given SC and will be followed for study outcomes. Data from these SC patients will be the used as comparator in the analysis of the study. The primary objective of the study is to assess if CP + SC improves the 14 day survival of patients, compared to SC alone. The Investigators aim to enroll a total number of 130 - 200 patients who will be treated treated with CP assuming equal numbers of patients treated with SC alone. If there would be insufficient patients treated with SC, patients treated at the research site prior to study start may be included in the comparison group. Patients will be recruited in the Ebola Treatment centre managed by Medecins Sans Frontieres (MSF) in Conakry, Guinea. All patients and/or relatives presenting at the centre will be informed about the study, and will be invited to provide consent at the time of admission inside the treatment centre. Only patients for whom ebola infection is confirmed with polymerase chain reaction (PCR) will be enrolled in the study. After inclusion, eligibility to the intervention will be reassessed on regular intervals. If the eligibility criteria are not met by 48 hours after inclusion, only SC will be continued. In line with the guidance of the World Health Organization (WHO), two units of CP will be given. EVD patients will be transfused with ABO-compatible CP using standard procedures. Details on the modalities of transfusion can be found in the WHO guidance document and the MSF guidelines on blood transfusion. All patients will be under close observation for transfusion-related adverse reactions during and up to 4 hours after transfusion. 24 hours after the start of transfusion, a blood sample will be collected for viral load assessment. All other aspects of patient management will be according to MSF clinical guidelines. The decision to discharge a patient should be taken on clinical grounds, but can be supported by the laboratory results. After discharge, the patient will be followed up by the study team until day 30.