Search for an AIDS vaccine lands me my first ever media science café

A message on my phone from Aghan Daniel, the secretary of MESHA (www.meshascience.org) on Wednesday, February 5, 2020 awakened my thoughts about the future of the world without a HIV vaccine.
Aghan was inviting to me to attend a two hour media science café at a Nairobi Hotel. In the invite, he simply stated that the meeting had been called to discuss vaccine research in the context of the halt of HVTN702 clinical trials.
As I sat in my university room, two things came to my mind. One, what is a media science café? Two, will I understand what the scientists will talk about given that they used complex terms?
Anyway, I conjured up courage and arrived at the venue 30 minutes before time. Then the introductions were done – and I was happy because I was seeing big names that I had only got to meet through bylines in the newspapers or heard their voices on radio! There was Angela Oketch of the Nation, Ann Mikia,a renowned radio personality in Kenya, Mike Mwaniki, a veteran journalist and Violet Otindo, whom I had only seen on TV, among others.
When the presentations started, Dr Kundai Chinyenze, Executive Medical Director, IAVI stepped forward and showed very simple slides using ordinary language in most of her talking points –she was very conscious of what could be technical and she explained them using a language that me, a non-science student easily understood.
Her topic was simple, HIV vaccine research efforts and IAVI’s role in the search for a safe, effective, affordable and globally accessible vaccine.
Then came Professor Omu Anzala from Kenya AIDS Vaccine Initiative (KAVI-ICR), University of Nairobi spoke on their roles in HIV vaccine research and prevention in Kenya.
These included clinical trials, research in communicable diseases, non- communicable diseases and the knowledge translation through public forums and targeted events like the science café, that I was privileged to attend for the first time. Prof Anzala spoke simple things off head without any presentation. He was in his element in his simplicity.
Mrs Rosemary Mburu, Executive Director, WACI Health talked on the need for the HIV vaccine. “We can end HIV without a vaccine but we cannot sustain the virus without a vaccine,” she said. She also urged for meaningful engagement of local communities for successful research and clinical trials.
To wind it up, a HIV champion, Ms Inviolata Mmbavi, Executive Director, International Community of Women Living with HIV – Kenya Chapter narrated her story of living with the virus for the last 30 years. “When you test HIV positive life will never be the same again,” she told us. She noted that the first drugs that were administered to her, almost killed her.
“That drug was a monster,” she said looking at Prof Omu Anzala whom she noted had started her on ARVs nearly three decades back and yet the two had never met again till today’s science café brought them together.
“Ladies and gentlemen, I have hope that a vaccine, to be only administered once in a human being’s life, will be found,” she said, almost tearfully.
She said that taking drugs daily is not a walk in the park and urged the researchers not to tire in their search for an AIDS vaccine. I gained a lot from this café and learnt that a lot of research is still being done in the quest to find an AIDS vaccine. This will definitely bring smiles back on the faces of those who are distraught because HVTN stalled.
The trials that are on-going include Imbokodo (Phase 2B/3) trial HVTN 705 which is a Mosaic Vaccine Aiming at Protection Against wide variety of global HIV strains. Dr Kundai said that HVTN 705 is a trial in women in five African countries of South Africa, Malawi, Zambia, Zimbabwe and Mozambique. The trial results are expected in 2022. Besides, up next is the PrEPVacc Trial Phase 2b trial which is testing 2 vaccines regimens to prevent HIV infection and compare a new kind of daily pill for pre-exposure prophylaxis (PrEP), Descovy vs the currently used Truvada. Importantly, this trial tests 2 vaccines regimens to prevent HIV infection and compare a new kind of daily pill for pre-exposure prophylaxis (PrEP), Descovy vs the currently used Truvada. Dr Kundai told us that this is the first efficacy vaccine trial that includes daily oral PrEP in its design in both men and women.

She added that it is planned to start later this year in Uganda, Tanzania, Mozambique and Kenya.
As I walked back to the university that day, not only was my fear of scientists slayed but I also felt tantalized by a few statements made at the café. 1. “Without HIV vaccine, we will not end AIDS.” – Dr Kundai Chinyenze. 2. “Can we end AIDS without a vaccine? Yes! But we cannot sustain HIV without a vaccine.” – Mrs Rosemary Mburu and 3. “When you test HIV positive life will never be the same again.” – Ms Inviolata Mmbavi, HIV champion.
The writer is a first year journalism student at the University of Nairobi.

HIV vaccine: Scientists call for patience as research continues

Days after the most awaited HIV vaccine clinical trials was stopped, researchers say that there is still hope to get another a vaccine which will prevent HIV infection.
“The recent withdrawal a HIV vaccine, HVTN 702, clinical trial is not the end of finding an effective preventive HIV,” two scientists recently told us at a science media café called by the Media for Environment, Science, Health and Agriculture (MESHA).

Dr. Kundai Chinyenze, Executive Medical Director, International Aids Vaccine Initiative (IAVI), clarified that the HVTN 702 vaccine, also known as Uhambo, was stopped due to its inefficiency in preventing HIV infection.
As journalists, we had somehow become enchanted by this news which we had received a few days earlier. We did actually think that scientists were still on it but were not very sure what researches were going on around us.
In her address to us, together with her colleague, Prof Omu Anzala of KAVI and University of Nairobi,
Dr. Chinyenze dispelled any fears in us in regards to the stopped vaccine clarifying that the study posed no safety concerns to the volunteers who were under trial.
She said that even though HTVN 702 study had failed and disappointed not only researchers but also donors and the community who had hopes in its success, there are a number of other HIV vaccines under trial and scientists are still working tirelessly towards developing vaccines in a bid to find a solution in curbing the infectious disease.
“As much as it is disappointing to have lost money and time, the HVTN 702 was just one among many other HIV vaccine trials that scientists have been working on and so this does not mean that it is the end of vaccine trials,” added Dr. Chinyenze. She observed that there are novel vaccines that have different mechanisms of action that are in earlier phases of testing.
Prof. Omu Anzala of KAVI and the Institute of Clinical Research (ICR) based at the University of Nairobi mentioned that they have learnt a lot following the failed vaccine in South Africa and that here in Kenya, they at KAVI in collaboration with partners in USA and Canada are working on Antibody Mediated Prevention (AMP) study and HVTN 706, also known as Mosaic.
“We scientists are still in pursuit of a safe and globally effective preventive HIV vaccine and other global efforts underway include HVTN 703 and HVTN 704 and HVTN 705 also known as Imbokodo, whose results are expected later this year 2020,” Prof. Anzala said, adding that there is no need to give up on ever finding an AIDS vaccine.
He however lamented over decline in funding towards research on HIV but was quick to state that this will not stop any efforts they are putting forward in finding a safe and effective safe vaccine.
“As we await an effective vaccine, we must understand the epidemic and establish a tool which will help in finding out who are getting infected and reach out to them,” he observed.

“People who are at risk of HIV infection should make use of PrEP and everyone should embrace test and treat as prevention measures to avoid new infections and spread of the virus – patients who are already positive must adhere to treatment,” said Prof Anzala.
That national Institute of off Allergy and Infectious diseases (NIAID) on February 3, 2020 stopped administration of HVTN 702 vaccine after Independent Data and Safety Monitoring Board (DSMB) found that it was not effective.
The HVTN 702 study funded at USD 130 million was launched in 2016 and it enrolled 5,407 HIV negative volunteers at 14 sites across South Africa. The volunteers randomly received six injections of the investigational vaccine or placebo for over 18 months.