There are about 131 clinical studies being (or have been) conducted in Cambodia. 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.
Hepatitis C (HCV) is an important global public health problem, disproportionately affecting HIV positive populations. Asia and Africa account for most of the co-infection burden, but access to HCV screening and treatment is still very limited. It is expected though, with the recent therapeutic advances and increasing global advocacy efforts, that HCV treatment should become a feasible option in the near future. Sihanouk Hospital Center of HOPE (Phnom Penh, Cambodia) is catering for one of the largest HIV cohorts of the country, followed in an ambulatory settings. In this cohort, the prevalence of HCV co-infection will be determined, as well as HCV genotype diversity and the severity of liver disease. The researcher will also explore the performance of simple blood tests/panels as predictors of significant fibrosis and/or cirrhosis. Patients will attend two study-visits. All adult patients of the HIV patient cohort of SHCH will be proposed HCV testing during their next HIV follow-up consultation, following the latest algorithm of the Centre for Disease Control (CDC) (May 2013). Anamnesis and clinical examination will focus, additionally to routine practice, on presence of general and HCV liver-disease related features. Laboratory analyses will include basic HIV tests (CD4), and tests for liver function such as Hepatitis B surface antigen (HbsAg) . During the following routine HIV follow-up consultation, the results of HCV testing will be explained to the patient. If the patient is HCV negative, his/her study participation ends here. If currently infected with HCV, the clinician will repeat the HCV liver-disease (extra-hepatic & hepatic) related anamnesis and clinical examination, and prescribe additional blood tests for the non-invasive liver fibrosis/cirrhosis blood panel tests, liver and kidney function. Patients will moreover be asked to undergo a liver ultrasound and liver stiffness measurements.
The purpose of this research is to determine if cooking with an iron ingot called the Lucky Iron Fish (LIF) increases the hemoglobin status in women of childbearing age living in Preah Vihear, Cambodia. The investigators hypothesize that the use of the LIF during cooking over a 12-month period will be as efficacious at increasing hemoglobin concentration as iron supplements (18 mg elemental iron) and will be more efficacious than the control.
This is a two-arm, randomized, open label Treatment Study evaluating the therapeutic efficacy, safety, tolerability and pharmacokinetics of a three-day course of Atovaquone-Proguanil (AP) or a three-day course of Atovaquone-Proguanil combined with 3 days of Artesunate (ASAP) in patients with uncomplicated Plasmodium falciparum malaria at selected sites in Cambodia. Atovaquone-proguanil, soon to adopted as a first line antimalarial agent by the National Malaria Control Program (CNM) in Cambodia in provinces with confirmed multidrug resistance, will be given with or without artesunate (AS) as a directly observed, standard three-day fixed dose combination treatment to all volunteers enrolled. The efficacy and safety of both drug combination as well as evidence for in vivo and in vitro resistance to their components will be monitored during the treatment period. All volunteers will receive a single dose of 15mg of primaquine as recommended by WHO with the first dose of AP or ASAP to block the transmission of malaria to mosquitoes. Resistance to AP and ASAP will be assessed by a combination of clinical, pharmacologic, and parasitological parameters including genomic signatures of selection during careful weekly follow-up visits for 6 weeks. Investigators will also be able to evaluate the effects of primaquine on the sexual stages of malaria (gametocytes).
Newborn mortality continues to be unacceptably high in Cambodia, despite reductions in maternal and under five year old mortality. Evidence exists that a large proportion of newborn mortality globally and in Cambodia is attributable to infections and sepsis. The study proposes a package intervention to address infection control in the perinatal period in facilities and to improve the timeliness of referral of newborns with suspected infections to appropriate health facilities for treatment through upgrading of hygiene practices in facilities and linking of community based volunteers with health facilities and families in the community setting. By delivering a coordinated intervention that combines improved education for health center midwives, village health care workers, and mothers of newborns, along with improved care coordination with increase in number of interactions (points of contact) between mothers and health care personnel, the investigators will see improved knowledge of newborn danger signs among mothers and health care workers, more rapid case detection of significant newborn illnesses, and more rapid and appropriate referral of ill newborns. The investigators also hypothesize that the common causes of newborn sepsis in Cambodia are different from those reported in Western cultures, and that Staphylococcus aureus will be a common pathogen as described in neighboring Laos. The investigators will evaluate the causes of newborn sepsis in the subset of infants referred to Takeo Provincial Hospital.
The purpose of this trial is to evaluate the efficacy of the LNS on children aged 6-17 months in preventing growth faltering and improving micronutrient status. The impact of product will be compared to Corn Soy Blend ++ (CSB++), Sprinkles, and to a control group consuming an unsupplemented diet, which is usually borbor at an early age, and thereafter, family foods.
The purpose of this trial is to evaluate the acceptability of the LNS to women and their children aged 12-17 months in comparison to Corn Soy Blend++, and Sprinkles added to borbor (white rice porridge, which is the traditional weaning food in Cambodia). Acceptability will be assessed through a sensory test for caregivers, and by measuring children's consumption.
The prevalence of cervical neoplasia in Cambodia is not known. There are no screening programs in place. The investigators plan on introducing a screening program based on WHO criteria and utilizing visualization with acetic acid. Patients who are positive will be offered same-day cryotherapy if indicated or will be referred for biopsy, LEEP and hysterectomy as indicated. The planned patient pool for this study is 1000 women, half of whom will be HIV positive (and thus have a presumed higher incidence of cervical neoplasia).
The purpose of this study is to determine whether consumption of thiamin fortified fish sauce over 6 months increases the thiamin status of women to a level consistent with a low risk of infantile beriberi. The investigators hypothesize that consumption of thiamin-fortified fish sauce will increase red blood cell thiamin concentrations, an indicator of thiamin status, in women consuming thiamin-fortified fish sauce, while concentrations will not change in women consuming a placebo fish sauce that does not contain thiamin.
The purpose of this study is determine the ability of bedide ultrasound performed in the Emergency Department and Outpatient Department can predict the severity of disease during a Dengue Fever outbreak in children, in Siem Reap, Cambodia. Our hypothesis is that the presence of gallbladder wall thickening and/or pleural effusions in children correlates with progression to Dengue hemorrhagic fever and Dengue shock. In addition, we hypothesize that sonographic imaging of pediatric patients presenting to the emergency department with a fever during a Dengue fever outbreak will change management and disposition.
The investigators propose to leverage the unique infrastructures and expertise of National Centre for Parasitology Entomology and Malaria Control and the Pasteur Institute in Cambodia and combine modern fieldwork, including a mobile laboratory fully equipped for molecular biology and culture experiments, with state-of-the-art genomic analyses to investigate how Plasmodium vivax parasites respond to antimalarial drugs. The investigators will focus on resistance to CQ, the choice treatment for vivax malaria in most endemic countries, for which treatment failures have been reported in Cambodia. The study will address some of the key biological mechanisms limiting the efficiency of drug therapy in P. vivax, including the identification of genetic polymorphisms underlying drug resistance in Cambodian P. vivax. The findings will provide a first unbiased perspective on the mechanisms of drug resistance in P. vivax and have the strong potential to significantly improve malaria control in Southeast Asia.