There are about 620 clinical studies being (or have been) conducted in Bangladesh. 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.
This study will assess if the pharmacokinetics, safety and tolerability of iOWH032 are grossly different in 1) Bangladeshi healthy population and 2) Bangladeshi cholera patients. This is not a hypothesis-driven research study.
Diarrhoea and malnutrition are the common childhood illnesses responsible for higher deaths in developing counties. Physiologically, malnourished children excrete lower amounts of salts and water in diarrhoeal stools, and they also are unable to handle excessive salts and water load. Some times they are found to be hyponatraemic due to the shift of sodium inside the cells (inefficient Na+ /K+ pump), and fluids containing higher amounts of sodium (such as the standard ORS) may lead to further increase in the intracellular sodium, fluid overload and heart failure. They also have depleted in potassium stores in the body. Recently, the WHO recommended a special ORS formulation, known as ReSoMal, for management of diarrhoea in severely malnourished children that contains a lower amount of sodium (45mmol/L) and higher amount of potassium (40 mmol/L) than the standard WHO-ORS. It is felt that an ORS containing lower sodium and higher potassium concentration may be useful in correcting hypokalemia, and in lowering the risks of excess sodium and /or overhydration, in severely malnourished children with diarrhoea. The safety of ReSoMaL is, however, still in question due to the risk of hyponatraemia, including symptomatic hyponatraemia, especially in the treatment of severe watery diarrhoea due to Vibrio cholerae and ETEC where loss of sodium in the stool exceeds than that is contained in ReSoMal. Thus an ORS solution with modest concentration of sodium (75 mmol/L) and higher concentration of potassium (40 mmol/L) have been suggested for the treatment of diarrhoea in these children. To improve the efficacy of oral rehydration, in terms of reducing the severity of purging and diarrhoea duration, different approaches (changing the substrates/ reducing the sodium and glucose concentration and osmolarity) have been tried with limited success. Benefiber (partially hydrolysed guar gum), a soluble fiber if added to a ORS solution is expected to be fermented in the colon liberating short chain fatty acids (SCFAs). SCFAs stimulate sodium and water absorption from the colon, and they have trophic effect, act as a fuel source for the colonocytes, have antibacterial properties and stimulates the production commensal flora, thereby may enhance recovery from acute diarrhoea in severely malnourished children. The aims of our proposed study are to examine whether an ORS solution with a modest concentration of sodium will prevent the occurrence of hyponatraemia including symptomatic hyponatraemia, and also whether addition of benefiber will improve the efficacy of ORS solution. This will be a randomized, double blind, controlled clinical trial in 186 children with severe malnutrition and watery diarrhoea (62 in each of the three treatment groups) to compare the efficacy of (i) the currently recommended ORS with some modofication(Na+ 75 mmol/L and K40 momol/L and minerals-Zinc, copper and magnesium), (ii) ReSoMal (Na+ 45 mmol/L), (iii) Currently recommended ORS (Na+ 75 mmol/L, K 40 momol/L and added minerals) with added Benefiber (25 grams/L), in the treatment of acute watery diarrhoea in children with severe malnutrition
The purpose of this study is to determine whether a medical nutrition product, PTM202, along with standard of care, enhances recovery and reduces diarrhea morbidity in young children
This study is an open-label phase III randomized clinical trial that would compare immunogenicity after receiving one of five different combinations of polio vaccines. Infants will be enrolled and randomized at 6 weeks of age to one of five different arms: A) Three doses of trivalent oral poliovirus vaccine (tOPV) at 6, 10 and 14 weeks of age B) Three doses of bivalent OPV (bOPV) at 6, 10 and 14 weeks of age C) Two doses of intramuscular (IM) inactivated poliovirus vaccine (IPV) at 6 and 14 weeks of age D) Two doses of intra-dermal (ID) fractional IPV (f-IPV) at 6 and 14 weeks of age E) Sequential administration of ID f-IPV at 6 and 14 weeks of age with bOPV at 10 weeks of age To assess the immunogenicity of each study vaccine and vaccination schedule, antibody titers against poliovirus types 1, 2 and 3 will be determined in sera extracted from blood collected before (at 6 weeks of age) and after receiving 3 doses of study vaccine (18 weeks of age). Seroconversion will be defined as a titer 4-fold higher than the expected fall in maternally derived antibodies, assuming a half-life of 28 days. The initial antibody titer at 6 weeks of age will be used as the starting point for the expected decline in maternal antibody. This study will compare the immunogenicity of: 1. Sequential dose of intra-dermal f-IPV and bOPV to bOPV alone administered at 6, 10 and 14 weeks of age 2. tOPV to bOPV administered at 6,10 and 14 weeks of age 3. IM IPV to ID f-IPV administered at 6 and 14 weeks of age The answer to these questions will guide the global polio eradication program in designing new routine immunization schedule for children that eliminates the risks of paralysis due to vaccine derived poliovirus (VDPV) from type 2 vaccine poliovirus.
This is a research study about an experimental (investigational) oral Shigella sonnei - Walter Reed S. sonnei (WRSS1). WRSS1 is a live vaccine that is being made to prevent disease from Shigella, which causes bloody, watery diarrhea. Infants and children living in developing countries experience the greatest consequences of this disease. The purpose of this study is to find a dose of the vaccine that is safe, tolerable, and develops an immune response. About 39 healthy adults, ages 18-39, and 48 healthy children, ages 5-9, will participate in this study. Once the vaccine is proven safe and tolerable in adults, then it will be tested in the children. This study will require volunteers to stay in the research facility for several nights for the first dose; they will not be required to stay overnight for the second and third doses. Participants will be assigned to receive 1 of 3 vaccine dose levels by mouth. Study procedures include: stool samples, blood samples and documenting side effects. Participants will be involved in study related procedures for about 8 months.
Background: Vibrio cholerae is one of the major causes of severe diarrheal disease in Bangladesh. It is estimated that there are about 450,000 cholera cases each year in Bangladesh. Cholera is prevalent in both urban and rural settings in the country. Policy decisions about how best a new public health tool can be incorporated into the system requires evidence. Investigators have recently carried out a feasibility study of oral cholera vaccine in urban Dhaka in Mirpur (Protocol #10061). However, whether a similar system can also be utilized in a rural area in Bangladesh needs to be studied. The hospital disease surveillance data from International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) reveals a substantial burden of cholera from Keraniganj upazila. Investigators propose a feasibility study of oral cholera vaccination by using the existing national immunization service delivery mechanism in Keraniganj. This study will help to provide evidence for the policy makers in introducing oral cholera vaccine in preventing cholera in high risk rural areas in Bangladesh. Hypothesis: That icddr,b in collaboration with the Government of Bangladesh will be able to implement an oral cholera vaccine program that; 1. reaches residents of rural union of Keraniganj 2. reduces the incidence of diarrhea due to Vibrio cholerae Objectives: 1. Carry out cholera vaccination in one rural union in Keraniganj. 2. Evaluate the impact of vaccination in reducing cholera in the study area Methods: Two unions in Keraniganj will be selected; around 30,000 individuals in one union will be vaccinated and impact evaluated by comparison with another similar union. After vaccination, passive cholera surveillance at the Upazila hospital will be conducted for two years on the patients from the two unions. Outcome measures/variables: Cholera vaccination programme will be assessed by the number of doses administered, drop-out rates between the two rounds, the proportion of vaccine wastage, and the vaccine coverage. Proportion of diarrheal hospitalizations that are due to V. cholerae O1 between the vaccinated and non vaccinated union will be calculated and compared to assess the impact of intervention.
This open-label study is being conducted to determine whether a mifepristone-misoprostol regimen for uterine evacuation which consists of 200 mg mifepristone followed 24 hours later by 800 mcg buccal misoprostol is acceptable to women and providers and feasible for introduction in public sector facilities in Bangladesh. It will also determine the feasibility of women availing the option of taking their dose of misoprostol outside the facility.
This is a single center, multi-site, double-blind, parallel group, placebo-controlled trial of the clinical efficacy of trivalent Serum Institute of India, Ltd. (SIIL)live-attenuated influenza vaccine (LAIV) vaccine among children aged 24 through 59 months in Bangladesh. Background: 1. Burden: Within Bangladesh, community- based influenza surveillance identified 84.5 cases/1000 children-years among children <5 years, while 10% of clinical pneumonia cases were influenza positive in this age group. 2. Knowledge gap: There has never been a randomized clinical efficacy trial of the SIIL LAIV vaccine conducted among children in a low-income country. 3. Relevance: Another LAIV vaccine (made by MedImmune) has been shown to have high efficacy against laboratory-confirmed influenza among children. The SIIL LAIV has the potential to be an inexpensive intervention to prevent pediatric influenza disease. Primary Hypothesis: In children aged 24 through 59 months in Bangladesh, LAIV is efficacious in reducing rates of symptomatic, laboratory-confirmed influenza (vaccine-matched strains) among children vaccinated with LAIV as compared to children vaccinated with a placebo through the first influenza season following vaccination. Primary Objective: To determine the efficacy of LAIV in reducing rates of symptomatic, laboratory-confirmed influenza virus infection (vaccine-matched strains) among children receiving LAIV as compared to children receiving a placebo through the first influenza season following vaccination (through December 2013). Methods: A total of 1761 children will be enrolled and randomized in a 2:1 ratio of LAIV to placebo beginning in March 2013. After vaccination, all children will be evaluated for reactions with one home visit four days post vaccination. Subsequently, all children will be monitored weekly for safety outcomes and illness signs at weekly field worker home visits through December 2013. An extended surveillance period was added to this study and, for participants consenting to additional follow-up, surveillance will extend through a second season (through September 2014). Participants with illness signs will be referred to the study clinic for evaluation using standardized diagnostic criteria and treatment by a study physician. Children meeting protocol-defined clinical Specimen Collection Criteria will have a nasopharyngeal wash specimen collected. Clinical specimens will be tested by Real time polymerase chain reaction (rRT-PCR) for evidence of influenza virus infection. Primary Outcome measures/variables: Vaccine efficacy will be assessed against symptomatic, laboratory-confirmed influenza for all circulating virus strains.
Nutritional anemia is a major public health problem among children and women in developing countries. Despite ongoing national program of supplementing pregnant women with iron-folate, prevalence of anemia is 39% among pregnant women and 78% among infants in Bangladesh. Vitamin B12 deficiency is a more prevalent cause of megaloblastic anemia than folate in many developing countries. This data raises the interest to address the role of vitamin B12 deficiency in nutritional anemia. Low dietary intake of animal products, a predominant source of vitamin B12 may cause anemia. Besides maintaining normal erythropoiesis, B12 is essential for immune function. However, no studies have evaluated the effect of maternal B12 supplementation on reduction of anemia and improving immunity of their infants. The investigators hypothesize that vitamin B12 supplementation plus iron-folate during pregnancy and 3-mo postpartum would: (a) Decrease anemia among mothers and infants; (b) Improve vaccine specific cellular and humoral immune responses among mothers; (c) Improve vaccine specific immunity in infants by passive transfer; (d) Improve DNA methylation and one-carbon metabolism in mother-child pairs; (e) Reduce antenatal/postnatal depression. Results from this study will guide and provide support to the policy makers to identify effective strategies to reduce nutritional anemia in population at risk. The investigators aim to conduct a double-masked placebo controlled trial to investigate the added effect of vitamin B12 on the iron-folate supplementation among pregnant women. Anemic (Hb level <11.0 g/dl) mothers at 11-14 weeks of gestation will be randomized into two groups: supplement group will receive 250 ug vitamin B12 plus 400 ug folate and 60 mg iron; placebo group will receive folate and iron only. This daily supplementation will continue up to 3-mo postpartum. At 26-28 wk of gestation mothers will be given inactivated influenza vaccine. Data on anthropometric indices of mothers and children, birth size, infant growth and morbidity (mothers and children) throughout the study period will be recorded. 24-h dietary recall data will be collected from the mothers bimonthly throughout the study. Biochemical indicators of anemia including Hb, vitamin B12, ferritin, folate and α-glycoprotein (AGP) will be assessed in plasma of mothers (pre- and post-supplementation) and infants (cord blood and 3-months). Additional measurements include serum transferrin receptor (sTfR) in plasma and methyl malonic acid (MMA) and total homocysteine (tHcy) in the urine of mothers. Plasma vaccine specific antibody responses will be measured in mothers (pre- and post supplementation) and in infants (cord blood and 3-months). In breast milk, B12, folate and s-IgA will be determined. Genetic polymorphism (one-carbon metabolism) and DNA methylation will be studied in mothers and in cord blood.
This is an observer-blind, randomised, vaccine-controlled, vaccine trial to determine the safety and immunogenicity of a pneumococcal protein vaccine. It will use an age step-down approach beginning with adults, then toddlers then infants, with data safety review at each stage before stepping down to the next age group. Adults and toddlers will receive the same dose of this three-protein (trivalent) vaccine (PcpA, PhtD, and PlyD1 proteins) at 50µg each. Infants will then be started at a low dose (10 µg), then medium dose (25µg) then high dose (50µg), with safety reviews at each stage before ascending to the next highest dose. Infants will also receive concomitant standard EPI childhood vaccines. Safety will be assessed by close monitoring beginning on the day of vaccination (day 0) and for the subsequent seven days, with recording of solicited and non-solicited adverse events. Immunogenicity will be assessed by specific antibody response to the three proteins. The study aims to recruit 280 study subjects across all age groups.