Reports in Time magazine today (Jan 13, 2015) about Insecticide Resistance in Mali shouldn’t really come under the heading of news. We’ve known about insecticide resistance in mosquitoes for a long time. In fact, that’s one of the reasons IVCC was set up in 2005—to develop new and effective vector control tools to challenge insecticide resistance.
But what is more serious is the comment in the article that resistance has ‘reached a level at some localities in Africa where it is resulting in the failure of the nets to provide meaningful control’. This is not only inaccurate, it is positively harmful. Even if insecticides on bednets shows limited efficacy in some cases, the physical barrier of the bednet still provides a meaningful level of protection—over 50% according to WHO. The article also fails to point out that the impact of growing insecticide resistance is not yet fully understood, nor is it distributed evenly across sub-Saharan Africa.
Long-lasting Insecticidal Treated bednets (LLINs), and Indoor Residual Spraying (IRS) have been remarkably successful over the past 15 years in reducing deaths and sickness from malaria across sub-Saharan Africa. In the World Malaria report 2015, the WHO reports that malaria mortality rates have decreased by 54% in the region during this period and that 44% of the population at risk is now sleeping under a LLIN. They estimate that 670 million fewer case and 4.3 million fewer malaria deaths occurred between 2001 and 2013 than would have occurred if incidence and mortality rates had remained unchanged.
Undoubtedly, some of this is due to better drug therapies and more effective diagnostics and health systems and that is also good news. But a large portion of it is also down to effective protection of the people at risk, especially the most vulnerable groups of pregnant women and young children. There is substantial evidence that LLINs and IRS have been remarkably efficient. The massive distribution of bednets has been a major lifesaver.
Ironically, the success of bednets and IRS one of the reasons why resistance has been developing. It’s a natural response from an insect population under stress. (See our video ‘The Tipping Point’) And it’s why we’re developing new anti-malarial insecticides that are safe for people and the environment that could bring to an end this never ceasing circle of solution-resistance-solution. (See our video ‘Why 3 new Ais’)
Working with the world’s leading agro-chemical companies, and top scientific experts in entomology and chemistry, we have already isolated 9 new chemical classes of anti-malarial insecticide with completely new (and different from each other) modes of action. This year we will select 3 of these to go into full development. If funding is adequate and the extensive regulatory processes are passed, these new insecticides will be in operation in the field by 2022.
In the meantime we have developed new formulations of existing insecticides for IRS, and have some novel approaches to bednets that are currently undergoing evaluation.
Time reports scientists are urging ‘the development of new and effective malaria vector control strategies’. Right, we’re on the case and the finishing line is in sight.Bayer CropScience & IVCC Offer New Malaria Tool 30th October 2013
The World Health Organization Pesticide Evaluation Scheme (WHOPES) has issued a recommendation for a new polymer-enhanced, long-lasting Indoor Residual Spray for malaria vector control. This deltamethrin based spray was jointly developed by Bayer CropScience and IVCC (the Innovative Vector Control Consortium). It represents a viable cost-effective alternative to DDT for malaria control programs. Market introduction across Sub-Saharan Africa and other malaria endemic areas is expected to occur during 2014 once relevant national regulatory approvals are in place.
Since 2007, Bayer CropScience has been working with its partners in IVCC to develop longer lasting indoor residual spray formulations and new active ingredients to manage insect resistance in malaria vector control. The new polymer-enhanced formulation of deltamethrin offers a residual effectiveness of six months. The World Health Organization (WHO) has recognized this unique formulation as having a longer residual lifespan than any other pyrethroid insecticide formulation.
“The success of the international community’s goal of eradicating malaria globally depends ultimately on new ideas and innovation,” said Dr. David Nicholson, Head of Research & Development at Bayer CropScience. “Our long-lasting indoor-residual spray is an effective malaria intervention. As a global innovation and market leader in vector control, we will continue to work closely with IVCC to foster the introduction of new vector control tools for public health.”
“We are delighted to have met this important research milestone in our collaboration with Bayer CropScience”, said Nick Hamon, CEO of IVCC. “This collaborative achievement illustrates the progress which has been made on the original objectives to deliver effective and affordable vector control interventions. I look forward to further successful outcomes from the IVCC partnership with Bayer CropScience.”
There are many countries in Sub-Saharan Africa where the transmission period for malaria can be longer than six months. In these situations, when indoor residual spraying is regarded as an appropriate intervention, a product with longer-lasting efficacy can be very important, reducing the frequency of spraying required and saving considerable costs for malaria control programs.
All insecticide sprays for malaria control are required to be evaluated and recommended by the WHO for effectiveness and safety. Until now the only product formally recognized to have residual effectiveness exceeding six months has been DDT. However, as a Persistent Organic Pollutant (POP), the production and use of DDT is strictly restricted.WHO Recommends Syngenta’s New Long-Lasting Insecticide Formulation 26th November 2013
Syngenta and IVCC collaboration delivers new long-lasting insecticide formulation, Actellic® 300CS, now recommended by the World Health Organization to fight insecticide resistant mosquitoes.
Syngenta and IVCC are proud to announce that The World Health Organization Pesticide Evaluation Scheme (WHOPES) has granted a formal recommendation for the use of Actellic® 300CS in malaria vector control. The WHO recommendation opens up additional opportunities for more malaria control programs around the world to access this new long lasting insecticide formulation designed for the control of pyrethroid resistant mosquitoes.
Syngenta believes that people deserve to live their lives uninterrupted by mosquitoes and the diseases that they can transmit. Syngenta has a rich pipeline of insecticides and access to advanced delivery technologies and consequently has been providing leading edge solutions on mosquito control for decades.
Mosquitoes have evolved to survive a number of the existing control products and this threatens the effectiveness of disease prevention programs. IVCC is a product development partnership committed to working with industrial partners to accelerate the development and introduction of new tools to meet these challenges. Syngenta and IVCC have had a long standing collaboration to accelerate and enrich the innovation pipeline for mosquito control.
The development of Actellic 300CS was initiated in 2007, not only to control resistance to the pyrethroid class of chemistry, but also deliver longer lasting performance to facilitate greater program efficiency in spraying programs. Since then, the WHO Global Plan for Insecticide Resistance Management recommends the deployment of non pyrethroid products when programs are looking for technology to complement mass distribution of long lasting insecticide treated mosquito nets.
Syngenta used their expertise in microencapsulation technology to create Actellic 300CS, which is designed specifically for residual spraying. Numerous independent trials have demonstrated at least 9 months residual performance on a range of household surfaces, a significant improvement over current alternatives. Trials have also demonstrated control of pyrethroid resistant strains in both Anopheles and Culex species of mosquitoes.
This unique combination of controlling pyrethroid resistance with proprietary long lasting technology provides the opportunity for malaria control program managers have a greater impact on malaria as part of their integrated control program. Long lasting performance allows for reduction of spray program costs through moving to just one application per season whilst also managing pyrethroid resistance. This is essential when long lasting insecticide treated nets are currently dominated by this class of chemistry.
Actellic 300CS is the first commercial product to exit the IVCC pipeline, and this important WHO recognition meets one of Syngenta [MSB1] and IVCC’s commitments to provide access to new technology in disease endemic countries. More than a million people are now estimated to be protected by Actellic 300CS and production has been scaled up to support all key markets.
This development is just one step on the journey to develop new solutions to controlling mosquito-borne disease, and more alternatives are urgently needed, especially in the fight against growing insecticide resistance. Syngenta and IVCC continue to collaborate on the development of the next generation of insecticides, which will provide a robust solution to future insecticide resistance and equip malaria control programs with the tools they need to defeat malaria.
For more information on Actellic 300CS or Syngenta products please contact: email@example.com
Footnote: Actellic is a registered trademark of the the Syngenta Group companies
Syngenta and IVCC collaboration deliver new long-lasting insecticide formulation, Actellic® 300CS, now recommended by the World Health Organization to fight insecticide resistant mosquitoes
Listening and Learning at MIM 2013 10th October 2013
IVCC’s stakeholder event in 2013 took place at MIM in Durban, when key individuals and organisations from all over the world gathered to share information and strategies for fighting malaria.
One of IVCC’s key objectives for stakeholder events is to engage with people working in country control programmes. The MIM Pan-African Malaria Conference 2013 in Durban provided a perfect opportunity to make contact and learn from people in the front line of malaria vector control.
The IVCC stand provided a visual summary of key achievements since the launch of IVCC in 2005 and a time frame for delivery of new vector control tools.
There were many visitors to the stand. Most were seeking information about the progress of IVCC’s collaboration with industry partners to develop the three new active ingredients that will form the basis of a new generation of public health insecticides. A frequent question was, ‘how long before you can deliver?’, indicative of growing concerns about insecticide resistance.
Information about IVCC’s portfolio and details about insecticide resistance were presented to delegates in an IVCC symposium on new tools for the management of insecticide resistance.
Professor Hilary Ranson from LSTM started the IVCC symposium with an overview of insecticide resistance in vector control. Dr Charles Wondji looked at the mechanisms of insecticide resistance and Professor Diabate Abdoulaye considered current strategies and future challenges for malaria vector control in Africa. An industry perspective was provided by Frederic Baur, who outlined the development of new products for insecticide resistance management.
During an evening reception later in the week, the new IVCC CEO, Dr Nick Hamon, outlined the IVCC mission and objectives for the next few years. Tribute was paid to the founders of IVCC and thanks recorded to the committed industry partners and funders who make the work of IVCC possible.
IVCC also took part in a demonstration of the new Insecticide Quantification Kits (IQKs), which are designed to help spray programmes monitor the effectiveness of indoor residual spraying.
The Innovative Vector Control Consortium (IVCC) has helped the CREC/LSHTM Collaborative Research Programme in Benin achieve Good Laboratory Practice (GLP) certification, the second vector control field trial site to attain certification in Sub-Saharan Africa.
The CREC/LSHTM Collaborative Research Programme is a research partnership set up in 2003 between the London School of Hygiene & Tropical Medicine and the Centre de Recherche Entomologique de Cotonou (CREC) at the Ministry of Health in Benin.
The partnership has extensive experience in the evaluation of vector control products (mainly long-lasting insecticidal nets and Indoor residual spraying) to WHO standards. It is part of PAMVERC (The Pan-African Malaria Vector Research Consortium) and its research activities are largely funded by USAID and by the Bill & Melinda Gates Foundation (BMGF) through IVCC and collaborating agrochemical companies.
Nick Hamon, CEO of IVCC said: “Field trials facilities in Africa play an essential role in evaluating novel vector control products being developed by our agrochemical partners. The generation of reliable data through GLP compliant field trials is important, as this is the key to establishing the true performance of the products being tested.”
Since 2000, IVCC, in partnership with the London School of Hygiene & Tropical Medicine, has been working to strengthen the quality and reliability of data generated by African vector control field trial sites. This work has included the development of quality management systems including Standard Operating Procedures (SOPs), the auditing of facilities for GLP compliance, and GLP training workshops.
An important element of IVCC’s GLP rollout programme has also been its funding of infrastructure improvements including buildings and equipment at its collaborating trial sites. This research capacity building is establishing a network of facilities in Africa that can generate testing data on vector control products of the highest standard.
Dr. Corine Ngufor, Assistant Professor, Disease Control Department, London School of Hygiene and Tropical Medicine and Facility Manager of CREC/LSHTM Facility said: “GLP accreditation is never an easy process for any facility. CREC/LSHTM is now the first facility in the West African region and the second in Africa to achieve GLP accreditation for vector control product evaluation. We look forward to working with agrochemical companies to deliver high quality data on the efficacy of novel vector control products in line with the WHO pre-qualification requirements. As a team, we have worked hard over the past 2 years and are very proud of this achievement. We are also grateful for the support provided by IVCC through this process.”
Graham Small, IVCC’s Trials Quality and Project Support Manager added: “The growing network of GLP certified trials sites across Africa will allow manufacturers of vector control products to generate their own efficacy data for inclusion in their product dossiers submitted to the WHO Prequalification Team product evaluation process. This represents a major step forward for vector control product testing, which will be of major importance in delivering the IVCC mission and in achieving malaria elimination in the future.”
In 2016, the first field trial site to achieve GLP certification was the Kilimanjaro Christian Medical University College (KCMUCo) was in Moshi, Tanzania. Five further IVCC collaborating trials sites are now planning their GLP studies and will be submitting their applications for OECD GLP certification through SANAS in the coming year.