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12 November 2019 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Farmovs
At a first for South Africa, the SACRA clinical trials capacity-building workshop with government, research institutions, and industry, were from the left: Dr Nathaniel Mofolo, Dr Rita Nathan, Dr Mojalefa Maseloa (Head: Clinical Services in the Clinical Unit at the Universitas Hospital) and Sue Baily (Site Management Head at IQVIA).

Whether it is to treat the flu or a more serious illness, all medicines go through a very costly and lengthy research process before being approved for prescription to patients. The cumulative time from the beginning of trials to marketing approval has increased over the past ten years. 

According to Dr Vathi Papu-Zamxaka from the South African Clinical Research Association (SACRA), South Africans would not have had access to safe and effective medicines, had it not been for the intensive research conducted on new medicines. 

On 7 November 2019, a group of 115 delegates representing the Free State Department of Health, the UFS, private research sites, and the pharmaceutical industry met at FARMOVS on the Bloemfontein Campus of the University of the Free State (UFS) for the SACRA clinical trials capacity-building workshop.

2,1 billion dollars to develop one successful drug

Dr Michelle Middle, Chief Medical Officer at FARMOVS, provided some interesting stats on the process for drugs to hit the shelves: “One out of 10 drugs entering human research will be approved. The cost of development of one successful drug is approximately 2,1 billion dollars. And the time to develop a drug, from submission of the Investigational New Drug Application (IND) to approval by the Food and Drug Administration (FDA), is between 12 and 15 years.”

Dr Middle stated that drug development is one of the most regulated processes, with ethics and patient safety governing the undertaking. “With SAHPRA (South African Health Products Regulatory Agency) having some of the strictest regulations in the world, South Africa has a good history of running trials.  In addition, fast growth is expected for the pharmaceutical market on the African continent, necessitating the need for increased clinical trials on this continent,” she said. 

Very few clinical trials hosted in South Africa 

Although Africa has the broadest genetic variability of all human populations and carries 17% of the global population, very few clinical trials are hosted on the continent. Globally, there are currently approximately 322 000 clinical trials being actively conducted, of which only 1 700 are conducted in Africa, i.e. less than 3%.  Even worse, only 304 of the 1 700 trials running in Africa are conducted in South Africa.  There is thus a critical need for South Africa as a country to market itself as a clinical trial destination and to attract more trials to the country.

South Africa’s competitive edge lies in being known for its ICH (International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use)-compliant top-quality research, racial and genetic diverse trial participants, good medical infrastructure and expertise, and the good reputation of the regulator (SAHPRA). “There are, however, a need for transformation and capacity building in clinical research in the country,” said Dr Middle. 

Dr Rita Nathan, Head of Clinical Services in the Clinical Department at the Universitas Hospital, who was representing government at the workshop, is looking to strengthen clinical trials across government and industry by focusing on, among others, funding models, operations management, and service delivery. 

From the UFS Faculty of Health Sciences, Dr Nathaniel Mofolo, Head of the School of Clinical Medicine, said collaboration between stakeholders is important. “This initiative is giving direction to the UFS vision of being a research-led university.” 

Other topics discussed at the workshop include the clinical trials landscape, how clinical trials work, the patient factor, ethics in clinical trials, and the economic aspect of clinical trials. 

News Archive

Sunflowers are satellite dishes for sunshine, or are they?
2016-07-20

Eighty-six percent of South Africa’s
sunflowers are produced in the
Free State and North West provinces.

Helen Mirren, the English actress, said “the sunflower is like a satellite dish for sunshine”. However, researchers at the University of the Free State (UFS) have found that too much of this sunshine could have a negative effect on the growth of sunflowers, which are a major source of oil in South Africa.

According to Dr Gert Ceronio from the Department of Soil, Crop, and Climate Sciences at the UFS, extremely high soil temperatures play a definite role in the sprouting of sunflower seedlings. Together with Lize Henning, professional officer in the department, and Dr André Nel from the Agricultural Research Council, he is doing research on biotic and abiotic factors that could have an impact on sunflowers.

Description: Sonneblom 2 Tags: Sonneblom 2

Various degrees of deformity (bad-left
to none-right) in seedlings of the same
cultivar at very high soil temperatures.
Photo: Dr Gert Ceronio

Impact of high temperatures on sunflower production

The Free State and North West provinces, which produce 86% of South Africa’s sunflowers, are afflicted especially by high summer temperatures that lead to extremely high soil temperatures.

Dr Ceronio says: “Although sunflower seeds are able to germinate at temperatures from as low as 4°C to as high as 41°C, soil temperatures of 35°C and higher could have a negative effect on the vegetative faculty of sunflower seedlings, and could have an adverse effect on the percentage of sunflowers that germinate. From the end of November until mid-January, this is a common phenomenon in the sandy soil of the Free State and North West provinces. Soil temperatures can easily exceed the critical temperature of 43°C, which can lead to poor germination and even the replanting of sunflowers.”

Since temperature have a huge impact not only on the germination of sunflower seeds, but also on the vegetative faculty and sprouting of sunflower seedlings, Dr Ceronio suggests that sunflowers should be planted in soil with soil temperatures of 22 to 30°C. Planting is usually done in October and early November. Unfortunately, this is not always possible, as soil moisture is not optimal for growth. Farmers are then compelled to plant sunflowers later.

Impact of herbicides on sunflower growth

“High soil temperatures, combined with the herbicide sensitivity of some cultivars, could lead to the poor development of seedlings," says Dr Ceronio.

The use of herbicides, such as ALACHLOR, for the control of weeds in sunflowers is common practice in sunflower production. It has already been determined that ALACHLOR could still have a damaging effect on the seedlings of some cultivars during germination and sprouting, even at recommended application dosages.

“The purpose of the continued research is to establish the sensitivity of sunflower cultivars to ALACHLOR when exposed to high soil temperatures,” says Dr Ceronio.

 

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