Clinical trials: Gametocytes
Malaria,Falciparum, Malaria
Efficacy, Effect on Gametocytes and Tolerability of the Addition of Artesunate to Amodiaquine in Colombia
The primary goal of this study is to quantify the benefit of adding artesunate to amodiaquine in treating patients with uncomplicated P. falciparum malaria, in a low transmission area in Colombia.
- Conditions
- Malaria,Falciparum, Malaria, Antimalarials
- Trial name
- NCT00378625
- Testing
- Artesunate
- Where
- Colombia
- Volunteers
- 360 people
- Sponsor
- Centro Internacional de Entrenamiento e Investigaciones Médicas
Malaria,Falciparum, Gametocytes
Controlled Human Malaria Infection Model for Evaluation of Transmission-blocking Interventions - Study 2
This is a single-center, open label study. The primary aim of this project is to develop a controlled human malaria infection transmission model ("CHMI-trans") or "challenge model" to evaluate the capacity of vaccines, biologics…
- Conditions
- Malaria,Falciparum, Gametocytes, Controlled Human Malaria Infection, Transmission
- Trial name
- CHMI-trans2 (NCT03454048)
- Testing
- Piperaquine (low dose), Piperaquine (high dose), Sulfadoxine pyrimethamine
- Where
- Netherlands
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center
Malaria
P. Falciparum Infection Dynamics and Transmission to Inform Elimination
In the current study, three experimental approaches aiming at reducing malaria transmission will be tested. The study will cover two transmission season (2019 and 2020) and the interventions will vary by season.
- Trial name
- INDIE-1b (NCT04053907)
- Testing
- Community Case Management, Weekly fever screening and treatment, Monthly malaria screening
- Where
- The Gambia
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Malaria,Falciparum
Controlled Human Malaria Infection Transmission Model - Phase A
This is to develop a model to test the efficacy of vaccines and/or drugs designed to block transmission of malaria to mosquitoes and to identify the targets of transmission-blocking immunity to malaria.
- Trial name
- CHMI-TransMod (NCT04280692)
- Testing
- PfSPZ Challenge, Sulfadoxine-Pyrimethamine, Piperaquine
- Where
- Kenya
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Oxford
Falciparum Malaria
Evaluation of the Gametocytocidal Efficacy and Safety of Primaquine in Uncomplicated Falciparum Malaria in Uganda
The purpose of this study is to evaluate the safety and efficacy of lower doses of primaquine compared to the dose recommended by the WHO for reducing P.
- Trial name
- NCT01365598
- Testing
- Primaquine
- Where
- Uganda
- Volunteers
- 468 people
- Sponsor
- London School of Hygiene and Tropical Medicine
Malaria
Dihydroartemisinin-piperaquine and Primaquine for Uncomplicated Plasmodium Falciparum Cases
Artemisinin-based combination therapy (ACT) has been known to be controversial for stopping malaria transmission.The addition of primaquine (PQ) - the only drug commercially available that kills mature transmission stage - to…
- Trial name
- DHP+PQ (NCT01392014)
- Testing
- dihydroartemisinin-piperaquine, dihydroartemisinin-piperaquine + primaquine
- Where
- Indonesia
- Volunteers
- 374 people
- Sponsor
- Universitas Indonesia
Falciparum; Malaria
The Transmission of Artemisinin Resistant Parasites Before and After Conventional Artemisinin-combination Therapy
A prospective study will be carried out in an area where parasites with reduced sensitivity to malaria drugs (artemisinins) have recently emerged.
- Trial name
- SPARTAN (NCT06347471)
- Testing
- Artemether-lumefantrine, Dihydroartemisinin-Piperaquine
- Where
- 2 sites in Uganda
- Volunteers
- 160 people
- Sponsor
- Infectious Diseases Research Collaboration, Uganda
Plasmodium Falciparum
Efficacy and Safety of a Single Low-dose Primaquine for the Clearance of Gametocytes
The purpose of this study is to assess efficacy and safety of a single low-dose Primaquine added to standard artemether/lumefantrine treatment for the clearance of Plasmodium falciparum gametocytes among patients with…
- Trial name
- NCT02090036
- Testing
- Primaquine (For artemether-lumefantrine+primaquine arm)
- Where
- Tanzania
- Volunteers
- 220 people
- Sponsor
- Muhimbili University of Health and Allied Sciences
Malaria
Community Dynamics of Malaria Transmission and Mosquito Feeding in Bancoumana, Mali
Background: Half of the world's population is at risk of malaria. Malaria is a disease that affects many people in Mali and other parts of Africa. It is caused by germs spread by mosquito bites. Malaria may be mild.
- Trial name
- NCT03304704
- Where
- 3 sites in Mali
- Volunteers
- 1,928 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Malaria, Falciparum
Mass-Drug Administration to Reduce Malaria Transmission
In the 1950s, the WHO included mass drug administration (MDA) with antimalarial drugs as a tool for malaria control in 'exceptional conditions when conventional control strategies have failed'.
- Trial name
- MDATRANS (NCT00509015)
- Testing
- Sulphadoxine-pyrimethamine (day 1: 500mg S&25mg P/20 kg), Artesunate (day 1,2,3: 4 mg/kg), Primaquine-base (day 3: 0.75 mg/kg)
- Where
- Tanzania
- Volunteers
- 6,000 people
- Sponsor
- Radboud University Medical Center
Malaria
A Randomised Efficacy Study of Combination Antimalarials to Treat Uncomplicated Malaria
The purpose of this study is to determine the efficacy of sulfadoxine-pyrimethamine plus artesunate versus sulfadoxine-pyrimethamine alone in the treatment of uncomplicated malaria.
- Trial name
- NCT00203814
- Testing
- Sulfadoxine-pyrimethamine, Artesunate plus sulfadoxine-pyrimethamine
- Where
- 2 sites in Mozambique
- Volunteers
- 280 people
- Sponsor
- University of Cape Town
Malaria
Phase 2 Efficacy Study of Primaquine and Methylene Blue
The purpose of this study is to determine the most efficacious transmission blocking drug regimen for seasonal malaria chemoprophylaxis in Mali.
- Trial name
- NCT02831023
- Testing
- Sulphadoxine-pyrimethamine, 0.25 mg/kg primaquine, Dihydroartemisinin-piperaquine
- Where
- Mali
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Malaria
Dried Leaf Artemisia (DLA) Compared to Artemisinin Combination Therapy (ACT) vs Malaria
The overall goal is to validate efficacy and potential superiority of dried leaf Artemisia annua (DLA) vs. artemisinin combination therapy (ACT) to cure malaria and to demonstrate elimination of the transmission stage…
- Trial name
- NCT03199755
- Testing
- ACT, DLA1, DLA2
- Where
- Democratic Republic of the Congo
- Sponsor
- Worcester Polytechnic Institute
Asymptomatic P.Falciparum Malaria
Effect of Antimalarial Treatment on Gametocyte Carriage in Asymptomatic P. Falciparum
Treatment of uncomplicated P.falciparum malaria with sulfadoxine-pyrimethamine (SP) is followed by a marked increase in the density of gametocytes.
- Trial name
- NCT00289250
- Testing
- Sulfadoxine-pyrimethamine, Sulfadoxine-pyrimethamine plus artesunate
- Where
- The Gambia
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Malaria,Falciparum
Safety, Tolerability, and Pharmacokinetics and Pharmacodynamics of TB31F
This phase 1 study aims to assess the safety and tolerability of monoclonal antibody TB31F administered intravenously or subcutaneously at escalating dose levels in healthy, malaria naïve, adults.
- Trial name
- TB31F (NCT04238689)
- Testing
- TB31F
- Where
- Netherlands
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center
Uncomplicated Falciparum Malaria
Trial of Artesunate Combination Therapy in Pakistan
This study is an evaluation of the benefit of adding artesunate to existing first and second line antimalarial therapies in Pakistan.
- Trial name
- NCT00959517
- Testing
- artesunate (AS), sulphadoxine-pyrimethamine (SP), Chloroquine (CQ)
- Where
- Pakistan
- Volunteers
- 588 people
- Sponsor
- London School of Hygiene and Tropical Medicine
Malaria
Pharmacokinetics, Efficacy, Gametocyte Carriage, Birth Outcomes Following Sulfadoxine-pyrimethamine Intermittent Presumptive Treatment in Pregnant Women
The main purpose of this study is to compare the drug levels of sulfadoxine-pyrimethamine found when given to pregnant women for the prevention of malaria to those found in pregnant women given the same drug with artesunate for…
- Trial name
- NCT00380146
- Testing
- sulfadoxine-pyrimethamine
- Where
- Mozambique
- Volunteers
- 31 people
- Sponsor
- Professor Karen I Barnes
Malaria
Combination Antimalarials in Uncomplicated Malaria
The purpose of this study is to study the efficacy of sulfadoxine-pyrimethamine on its own and compare this with efficacy of a new combination antimalarial therapy, either sulphadoxine-pyrimethamine plus artesunate or…
- Trial name
- NCT00203801
- Testing
- Sulfadoxine-pyrimethamine, Artesunate plus sulfadoxine-pyrimethamine, Artemether-lumefantrine
- Where
- 7 sites in Eswatini, Mozambique and 1 more
- Volunteers
- 700 people
- Sponsor
- University of Cape Town
Malaria
Primaquine's Gametocytocidal Efficacy in Malaria Asymptomatic Carriers
In this study, the investigators are interested to know if lower doses of Primaquine together with dihydroartemisinin-piperaquine can produce a similar effect of clearing both sexual and asexual parasites in asymptomatic carriers…
- Trial name
- PRINOGAM (NCT01838902)
- Testing
- DHA-PPQ, PQ (0.75), PQ (0.4)
- Where
- The Gambia
- Volunteers
- 467 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Malaria
Preventing the Spread of Malaria in Mali
A vaccine which interrupts malaria transmission is a critical tool to achieve the ultimate goal of eradication of this disease. Transmission blocking vaccines work by inducing antibody in vaccinated individuals that inhibits the…
- Trial name
- NCT01360112
- Where
- Mali
- Volunteers
- 816 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)