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23 March 2022 | Story André Damons | Photo UFS Photo Archive
Prof Matsabisa
Prof Motlalepula Matsabisa is a professor and Director of Pharmacology at the University of the Free State (UFS)

The Department of Pharmacology at the University of the Free State (UFS) and FARMOVS have teamed up to conduct the first South African Health Products Regulatory Authority (SAHPRA)-approved multicentre controlled clinical trial of a plant-based product, PHELA, on mild to moderate COVID-19 patients.  

According to Prof Motlalepula Matsabisa, professor and Director of Pharmacology at UFS, it is anticipated that the trial will start in early April with each patient being on treatment for 28 days.

“The main purpose of the clinical trial is to confirm that the product can treat COVID-19 and be registered as a medication for this indication. We believe the medication works as an immune modulator to modulate the cytokine storm due to COVID-19 and also restores and normalises the patient’s immune system. We plan to have 250 patients who suffer from mild to moderate COVID-19,” explains Prof Matsabisa. 

This pivotal study, he says, is based on the modification of the World Health Organisation (WHO) Master protocol for clinical trials. The use of FARMOVS, a wholly owned clinical research company of the UFS Bloemfontein campus, for this clinical trial was to implement the collaborative initiatives between UFS and FARMOVS on clinical research, training, and other research projects.

What is PHELA?

Prof Matsabisa, deputy president of the South African Society for Basic and Clinical Pharmacology Society (SASBCP), says the development of PHELA has been under stringent scientific scrutiny for its safety in both preclinical and clinical research. The efficacy of PHELA as both an immune modulator and an anti-SARS-COV-2 has been proven in vitro and in vivo with reproducible results conducted by three independent research institutions and a science council.
The Department of Pharmacology and FARMOVS are collaborating on a number of studies to advance clinical research on African Traditional Medicines (ATM).

On the use of PHELA, Prof Matsabisa explains: “PHELA is a herbal product made of four medicinal plants. Traditionally PHELA has been claimed for use for a historical disease called muyaga, but recently has been scientifically tested and found effective as an immune modulator and benefiting persons with a compromised immune system.
“The PHELA plants are found in most provinces of South Africa and we have cultivated them to control their growth to produce quality raw materials.” 

“The SAHPRA-approved clinical trial will be conducted in the Eastern Cape, Northern Cape and Gauteng. The clinical trial will be conducted by a complement of medical staff and clinicians with vast experience of many active years of clinical trials.
 
“The study, we believe, is a benchmark for all future traditional medicines clinical trial protocols and studies. The studies are expected to start immediately after the product batch manufacturing of the study product, PHELA, is completed and this will be within a month’s time. “A lot of good scientific preclinical safety and efficacy research has gone into the development of the study product for it to reach this stage.

“The efficacy studies have shown convincingly that PHELA is an immune reconstitution product and does have an effect in killing the SARS-COV-2 virus and most of its variants.  PHELA efficacy, therefore, needs to be confirmed through randomised controlled multicentre clinical trials in COVID-19 patients,” Prof Matsabisa says.

Medicinal plants have previously been used to eradicate life-threatening viruses 

Although medicinal plants have been used to combat previous pandemics such as the Spanish flu, avian influenza and others, we still believe rigorous control and efficacy thereof is still to be supported by scientific research and development, says Prof Matsabisa. 

Prof Matsabisa, the current chairperson of the World Health Organisation’s (WHO) Regional Expert Advisory Committee on Traditional Medicines (REACT), adds: “We have better technologies and resources now, which is why we should take the next step in research to promote consumer safety and to offer them effective alternatives. We do the science to aid in building the herbal industry and develop sustained consumer confidence in traditional medicines. 

Africa should lead the way to a healthier future for all
“My vision is for Africa to share our valuable resources with the world by developing, and distributing world-class medicinal solutions. We should develop and strengthen the pharmaceutical local production of well-researched, quality, safe and efficacious African traditional medicines as commercial products. We are more than capable of doing so and now is the time to do it. Numerous discussions have taken place where other African countries will join South Africa in conducting multicentre studies in clinical trials for traditional medicines. 

“We need to develop or create, based on this current collaborative work with partners like FARMOVS, health centres with a strong focus on African medicines, health products and healing, but in a very strong collaborative initiative with other health systems”, concludes Prof Matsabisa.

Prof Matsabisa was recently awarded a Visiting Professorship at the Beijing University of Chinese Medicine (BUCM) in Beijing, China. He was also recommended to Naledi Pandor, Minister of International Relations and Cooperation, to be part of the India, Brazil and South Africa (IBSA) working group in traditional medicine through his participation in the national department of health technical committee on traditional medicines where he has been appointed by the Minister of Health, Dr Joe Phaahla.

News Archive

Research helps farmers save with irrigation
2017-02-15

Description: Irrigation research Tags: Irrigation research

Marcill Venter, lecturer in the Department of
Agricultural Economics at the University of the
Free State, has developed the mathematical
programming system, Soil Water Irrigation
Planning and Energy Management in order to
determine irrigation pump hours.
Photo: Rulanzen Martin

Her advice to farmers is that they should make sure they are aware of the total cost (investment and operating costs) of an irrigation system. In most cases the investment cost is low, but the operating cost over the lifetime of the system is high.

“It is very important to have a look at the total cost and to install the most economic system,” says Marcill Venter, lecturer at the University of the Free State (UFS), who has done research on the economic sustainability of water-pipe systems.

Irrigation systems important components for farming
This research comes at a time when many farmers are relying on their irrigation systems due to persistent drought and low rainfall during 2016. South Africa has also experienced an abnormal increase in electricity tariffs in recent years. Due to tariff increases which threaten the future profitability of irrigation producers, the Water Research Commission (WRC) has launched and financed a project on the sustainable management of irrigation farming systems. “I had the opportunity to work on the project as a researcher,” says Venter.

The heart of every irrigation system is the water pipes that bring life to crops and livestock, and this is what Venter’s research is about. “Water pipes are part of the whole design of irrigation systems. The design of the system impact certain factors which determine the investment and operating costs,” she says.

Mathematical system to help farmers
Venter and Professor Bennie Grové, also from the Department of Agricultural Economics at the UFS, designed the Soil Water Irrigation Planning and Energy Management (SWIP-E) programming model as part of the WRC’s project, as well as for her master’s degree. “The model determines irrigation pump hours through a daily groundwater budget, while also taking into account the time-of-use electricity tariff structure and change in kilowatt requirements arising from the main-line design,” says Venter. The model is a non-linear programming model programmed in General Algebraic Modeling System (GAMS).

Design of irrigation system important for sustainability

The main outcome of the study is that the time-of-use electricity tariff structure (Ruraflex) is always more profitable than the flat-rate structure (Landrate). The interaction between the management and design of a system is crucial, as it determines the investment and operating costs. Irrigation designers should take the investment and operating cost of a system into account during the design process. The standards set by the South African Irrigation Institute (SAII) should also be controlled and revised.

Water-pipe thickness plays major role in cost cuts
There is interaction between water-pipe thickness, investment and operating costs. When thinner water pipes are installed, it increases the friction in the system as well as the kilowatt usage. A high kilowatt increases the operating cost, but the use of thinner water pipes lowers the investment cost. Thicker water pipes therefore lower the friction and the kilowatt requirements, which leads to lower operating costs, but thicker pipes have a higher investment cost. “It is thus crucial to look at the total cost (operating and investment cost) when investing in a new system. Farmers should invest in the system with the lowest total cost,” says Venter.

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