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NTD ConnectOR ~ Advanced search

Displaying 121 - 150 of 291

Lead on social science

LSTM |

Determine the best health systems approaches for:

1. Improved planning and delivery of integrated programmes; 
2. Increased and sustained access to NTD drugs; 
3. Harmonised inter-sectoral approach; and 
4. Strong and generalisable evidence base for integrated elimination and control of NTDs.

 

Countries:

Molecular tools for insecticide resistance diagnosis in phlebotomine sandflies for sustainable leishmaniasis control and elimination programme

LSTM |

Developing new diagnostic tools to monitor insecticide resistance in sandflies in India

Countries: India
Diseases: Leishmaniasis

Improving the impact of IRS for Visceral Leishmaniasis with enabling integrated decision support systems

LSTM |

Improving effectiveness of vector control against Visceral Leishmaniasis

Countries:
Diseases: Leishmaniasis

Insecticide resistance in dengue vectors, Jeddah

LSTM |

Defining the insecticide resistance status of dengue vectors in Jeddah and Makkah; essential prerequisite to developing an effective response in the event of an outbreak in these important sites.

Countries: Saudi Arabia

Mapping schistosomiasis and soil-transmitted helminthiasis in Namibia

LSTM |

Assessing treatment needs for school-aged children and assisting Ministry of Health to develop an effective control programme

Countries: Namibia

Drug formulation for pre-school children

LSTM |

Understanding the basic pharmacology of praziquantel tailored to paediatric setting and developing a treatment access plan for this age class

Countries:

COUNTDOWN Calling

LSTM |

Helping increase and sustain the scale-up of preventive chemotherapy campaigns in West and Central Africa

Countries:

A-WOL Macrofilaricidal Drug Discovery

LSTM |

Deliver at least one novel pre-clinical candidate capable of delivering a macrofilaricide treatment for onchocerciasis (and lymphatic filariasis) within a seven-day treatment period or less.

Countries:

Optimizing and implementing A·WOL macrofilaricidal drugs and regimes

LSTM |

Establish the best registered drug for deployment as a macrofilaricide alone and/or in combination with standard anti-filarial drugs.

Countries:

AWOL Discovery Supplemental Award

LSTM |

Late lead optimisation

Countries:

Global Health Innovative Technology Fund (GHIT): 2014-2016 Anti-Wolbachia lead optimisation

LSTM |

Establish the most promising template for final lead optimization from a screen of >10000 compounds from the BioFocus library which revealed compounds with very good anti-Wolbachia activity.

Countries:

Strengthen the capacity of the 5 African university departments hosting the MCDC programme

LSTM |

To strengthen the capacity of the 5 African university departments hosting the Malaria Capacity Development Consortium (MCDC) programme

Countries: Senegal | Mali | Gambia | Ghana

Studies on the glycosylation of metacyclic trypanosomes

LSTM |

The development of Trypanosoma brucei within the tsetse vector is accompanied by the expression of several stage-specific families of GPI-anchored surface glycoproteins. We recently discovered that saliva from T.brucei-infected tsetse flies is enriched with Brucei Alanine-Rich Proteins (BARP), VSG and a novel family of GPI-anchored surface glycoproteins. The latter are phylogenetically grouped within the Clade IV of family 50 of trypanosome surface proteins and are encoded by five paralogs, whose products are over 90% identical in sequence. Immunofluorescence and transcript analysis showed that Clade IV proteins are expressed on the surface of metacyclic trypanosomes and also on epimastigotes and pre-metacyclic forms although in lower abundance. This expression pattern opposes that of BARP, which is highly expressed in the epimastigote stage and diminishes during differentiation to metacyclics. Because Clade IV proteins are almost identical in sequence and are heavily expressed in the metacyclic stage, we named them Metacyclic Invariant.

Countries:
Diseases: Leishmaniasis

Novel immuno-proteomic strategies to develop a polyspecific, non-cold chain liquid snake antivenom with unparalleled sub-Saharan African efficacy

LSTM |

To develop a polyspecific, non-cold chain liquid snake antivenom with unparalleled sub-Saharan African efficacy

Countries:
Diseases: Snakebite

Evaluation and Control of Cutaneous Leishmaniasis in KSA

LSTM |

Cutaneous Leishmaniasis (CL) is exclusively transmitted by the bite of a female sand fly. In collaboration with the Saudi Arabian Ministry of Health, we have developed a programme aiming to prevent and control CL in this country. The programme focuses, among other aspects, in developing a rapid diagnostic test based on the patient’s anti-alpha-Gal response, and in identifying markers for disease exposure. We recently found evidence that treatment efficacy against Old World CL varies with parasite species, geographical locations and the development of secondary infections. This has implications on the treatment of this debilitating disease. The severity of a leishmaniasis ulcer partly depends on the patient’s previous exposure to sand fly bites. This explains the increased protection against CL in individuals living in CL-endemic areas and supports development of potential vaccine models based on sand fly salivary proteins. Furthermore, Old World CL patients produce high levels of anti-Gal antibodies (i.e. recognise terminal alpha-galactosyl epitopes). This discovery is currently being exploited for the making of rapid diagnostic tools and a potential protective glycovaccine model against CL. We hope that these tools can soon be applied in other CL-endemic countries, including refugee settings.

Countries: Saudi Arabia
Diseases: Leishmaniasis

Doxycycline for Clinical Management of Filarial Lymphedema (India)

Determine whether doxycycline treatment daily for 6 weeks improves clinical outcomes (swelling, acute attacks) in lymphedema patients.

Countries: India

Impact of Malaria Vector Control & Status of Lymphatic Filariasis Transmission in the Lake Zone of Tanzania

To assess filarial exposure in the study population and mosquito infection status prior to and after the start of intensified malaria control interventions.

Countries: Tanzania

Determination of the prevalence of LF infection in districts not included in LF control activities and of the basis for integrated implementation of LF - onchocerciasis elimination strategies in potentially co-endemic areas

Field validation of the diagnostic performance of the Wb123/Ov16 biplex rapid diagnostic test and Wb123 ELISA, compared to the filariasis test strip (FTS) in a setting initially found to be non-endemic for lymphatic filariasis, in which clinical cases have been identified.

Countries: Ghana

IDA Acceptability Study (Fiji)

Assess the overall acceptability of the 3-drug treatment in the community as compared to the 2-drug treatment

Countries: Fiji

IDA-Triple Drug Therapy Clinical Trial in Fiji

Clinical Trial Triple Drug Study for LF

Countries: Fiji

Field Validation of Wb123 monoplex, Haiti

To compare the performance of antigen (FTS) and antibody (Wb123 monoplex) tools in programmatic settings (TAS).

Preliminary Findings and Lessons Learned

The goal of this study is to compare the performance of antigen (FTS) and antibody (Wb123 monoplex, Wb123 ELISA, multiplex) tools in programmatic settings (TAS). In order to strengthen the existing TAS platform we need to better understand which diagnostic indicator(s) are best-suited for making programmatic decisions. The TAS was conducted in Trou de Nord and Plaisance EUs.  Both EUs passed the TAS, but positive FTS were identified (4 and 2, respectively). However the Wb123 RDT found ZERO positive children, of the over 2000 tested. While the Wb123 ELISA testing is still ongoing, this initial result agrees with findings from other studies, all of which suggest that the Wb123 RDT is too insensitive a tool to be of programmatic use.

Countries: Haiti

IDA Acceptability Study (India)

Assess the overall acceptability of the 3-drug treatment in the community as compared to the 2-drug treatment

Countries: India

TAS Strengthening in American Samoa

To evaluate strategies to improve the sensitivity of the TAS for detecting evidence of recent lymphatic filariasis transmission in an evaluation unit (EU). The TAS Strengthening Study in American Samoa is designed to assess additional indicators that may be added to the current TAS platform in order to strengthen the resulting stopping or surveillance decisions. A comprehensive analysis will be conducted to understand the correlation between antigen and antibody in adults and children with the mosquito data. A spatial analysis looking at microfoci of infection will also be conducted.  Xenomonitoring work to assess Aedes mosquitoes is underway.

Preliminary Findings and Lessons Learned

The ultimate goal of this study is to strengthen the existing TAS platform so that the programs can be more confident with their stopping and surveillance decisions.   In order to strengthen the existing TAS platform we need to better understand which target population(s) and diagnostic indicator(s) are best-suited for identifying areas with persistent transmission that is not expected to cease on its own, knowing that the answer may vary according the primary vector and stage of the program.  In the selected sites a community-based TAS was conducted using the standard sampling of 6-7 year olds while a community TAS (individuals >8 years) was conducted concurrently.  All samples were tested via FTS and DBS (for Wb123 ELISA).  In these same communities a molecular xenomonitoring study will take place and the mosquitoes will be tested for filarial DNA to relate back to the human specimens.  To date human sampling has been completed in all sites and laboratory analysis of the specimens is complete. Mosquito collection has been completed in Haiti and Tanzania and the PCR analysis has been completed in Haiti and is planned for Tanzania (pending the arrival of a new PCR machine).  In American Samoa xenomonitoring has been delayed due to weather conditions and arbovirus outbreaks; work is expected to commence spring 2018.

Countries: American Samoa

District-Level Integrated Mapping of Onchocerciasis, Lymphatic Filariasis, and Loiasis in Nigeria

  • To define a cost-effective and accurate method to map ivermectin-naïve districts for Onchocerciasis, Lymphatic Filariasis and Loiasis and identify districts eligible for safe treatment with ivermectin MDA.
  • To validate a statistical model of Loiasis prevalence and intensity by comparing the model results to data from a prevalence assessment.
Countries: Nigeria

TUMIKIA project

The TUMIKIA Project aims to determine whether combining school- and community-based deworming is more effective at controling and eliminating soil-transmitted helminths (STH or intestinal worms) in Kenya than school-based deworming alone. 

The two-year trial will provide the drug albendazole to all residents from 150 communities in Kwale County, Kenya. There are three study groups:

  1. Base: annual school-based deworming (ages 2-14)
  2. Increased coverage: annual school- and community-based deworming (ages 2-99)
  3. Increased coverage and frequency: bi-annual school- and community-based deworming (ages 2-99)

TUMIKIA stands for 'Tuangamize Minyoo Kenya Imarisha Afya,' which means “eradicate worms in Kenya to improve health,” in Swahili. 

Download the TUMIKIA Research Brief [pdf]

Countries: Kenya

Evaluation of alternative indicators for stopping trachoma mass drug administration

To assess the relationships between the prevalence of the clinical sign TF compared to prevalence of infection and antibody in Chikwawa and Mchinji districts

Countries: Malawi
Diseases: Trachoma

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