Research Roundup: Urine-based TB test, Lower respiratory tract infections test, Nasal spray for COVID

Last week, French biopharmaceutical company Osivax announced that it received a $19.5 million contract from the Biomedical Advanced Research and Development Authority (BARDA) to further develop its broad-spectrum influenza A candidate vaccine for pandemic and seasonal flu preparedness. The vaccine is designed to target a part of the virus that is highly conserved and less likely to mutate, hopefully offering a broader, more universal immune response, and it has demonstrated promising results in early clinical trials. BARDA’s funding will support ongoing clinical development and large-scale trial and manufacturing preparation, with potential options for future funding to support Phase 2b and scale-up activities. A team of researchers at the University of Nottingham successfully produced antibodies that kill the parasite that causes Chagas disease, an important step toward the development of a much-needed vaccine. Chagas is a serious neglected tropical disease, which causes 56,000 cases and 12,000 deaths every year. The researchers developed antibodies targeting two key proteins in the parasite that were found to be extremely effective at neutralizing the parasite in a crucial developmental phase when it’s capable of infection, which is key for vaccine development.   A University of Maryland research team developed an artificial intelligence (AI) tool that can quickly scan electronic medical records to identify high-risk patients who may be infected with H5N1 avian flu, as this year’s outbreak highlights the need for more robust screening interventions to ensure infections are not going undetected. The researchers used their generative AI large-language model to analyze the records of more than 13,000 adults who had visited the emergency department in Maryland in 2024 for acute respiratory illness and common H5N1 symptoms. With less than half an hour of human input, the model found 76 records that mentioned a lifestyle risk factor for H5N1, 14 of which were confirmed to have a recent exposure to animals that transmit H5N1. The tool highlights the shortcomings of the response to the latest outbreak and offers a potential new tool to help improve surveillance and testing in future outbreaks of H5N1 and other infectious diseases.

GHTC’s PQ Pulse interview series explores challenges in navigating the World Health Organization’s (WHO’s) prequalification (PQ) program with various stakeholders engaged in the regulatory ecosystem.  In our third installment, we spoke with Dr. Benjamin Djoudalbaye, head of the African Medicines Agency (AMA) interim secretariat, to discuss the agency's role in advancing regulatory harmonization across the continent and its intersection with WHO's PQ program.   In our interview, which has been lightly edited and condensed below, Dr. Djoudalbaye discusses his vision for a harmonious regulatory system across the African continent.   GHTC: To begin our conversation today, it would be helpful for you to outline AMA’s scope and highlight its current status.  Dr. Djoudalbaye: Yes, thank you for the question, and thank you for the opportunity for AMA to tell its story.  AMA is a specialized agency of the African Union, established to regulate and harmonize oversight of medicines, vaccines, medical devices, and veterinary and traditional medicines across the continent. The overarching goal of the agency is to ensure that all Africans have access to high-quality, safe, and effective medical technologies.   This is a quite broad definition of AMA, as it also has some specific key functions. These include regulatory harmonization across African regulatory bodies, assessing and listing medical products, pharmaceutical manufacturing, market surveillance, and supporting growth of local manufacturing in alignment with the African Pharmaceutical Manufacturing Plan. Oversight of clinical trials and good manufacturing practices also fall under the purview of the agency. I named just a few functions of AMA, but there are many more.In terms of governance, AMA is established by a treaty that is undergoing ratification and is currently endorsed by 31 countries. A Conference of State Parties has been established to oversee it, in addition to a governing board and secretariat. Dr. Delese Mimi Darko was appointed as AMA’s Director-General and will assume her role very soon at the agency’s headquarters in Kigali, Rwanda. My role consists of laying the foundation for Dr. Darko to take over and lead the institution. GHTC: That’s helpful context to gain an overview of AMA. It’s also exciting to see how much progress has been made to operationalize the agency in such a short among of time. GHTC: How do you see AMA’s role evolving as it relates to PQ, potentially as a partner and/or taking ownership of certain functionalities?Dr. Djoudalbaye: That’s an interesting question and one that I do not have all the answers to. AMA has not given an official position on its relationship with WHO PQ, but I can provide a few ideas on how that might play out.  To me, PQ has long served as a global benchmark for ensuring the quality, safety, and efficacy of medical products, particularly for [low- and middle-income countries] that lack robust regulatory systems. Africa has gotten support from this program’s rigorous assessment of medicines, diagnostics, and vaccines for products procured by [UNICEF] or by Gavi, the Vaccine Alliance, as those products must be prequalified by WHO before they are procured and then delivered. So that’s one way PQ and AMA will continue to engage with one another. We also need collaboration for quality control of health technologies, which is WHO PQ’s guaranteed service. Providing technical support and training to national regulatory authorities, specifically guidance for local manufacturers seeking to achieve international quality standards, is another area of expected engagement with WHO.  AMA is positioned to harmonize and coordinate Africa's network of quality control laboratories and build on platforms developed through PQ. So, in this regard, PQ is extremely important, and AMA needs to build on that. Despite the progress we see with AMA, we need to recognize the continent’s reliance on national and regional regulators. On the continent today, we have three layers. Layer one is the continental level, of what AMA will do and implement; the second is the African Medicine Regulatory Harmonization program, working alongside regional economic initiatives; and the third layer is the national level. It is important that these layers communicate with one another as they transition from reliance to recognition. Further down the line, we can think about leveraging the WHO Foundation to develop an Africa-specific or fast-tracking product assessment system that focuses on regional health priorities and locally manufactured products as a possible idea. Long-term, my goal is for AMA to decrease Africa’s dependence on external prequalification.GHTC: Yes, I agree. It’s hard in this environment to make any sort of clear determinations with all that is moving around us, especially with WHO’s reform, as well as changes in the US landscape.  GHTC: What challenges are you facing day-to-day? How do you ensure that you continue the forward momentum, as AMA is undergoing ratification?  Dr. Djoudalbaye: One challenge is the fragmented regulatory frameworks across the African continent, and it will be AMA’s role to coordinate and bring those stakeholders together. The diverse—and sometimes conflicting—regulations across countries and regions make it difficult for manufacturers to comply effectively, especially for those working across jurisdictions. We have countries with different national languages, which can also make alignment difficult. One united framework will help address bottlenecks, reduce approval times, reduce markets to entry, and bring down administrative costs.  Another challenge is bureaucratic inefficiencies. Complex, opaque regulatory procedures increase operational costs, discourage investments, and create barriers to scaling innovation. The issue may be—and I am choosing my words carefully here—perceived corruption and inconsistent regulatory enforcement in some countries that can erode trust in the system.Inadequate regulatory oversight is another pain point. Many regulatory authorities lack resources and capacity, and that is a contributing reason to why we only have eight African countries that have achieved maturity level three [Editor note: WHO has a four-level system for assessing the strength and functionality of national regulatory authorities]. We are striving to have at least half of Africa’s member states reach maturity level three, others to reach four, and even potentially have regional bodies added as WHO-listed authorities [Editor note: WHO-listed authority is a designation for countries with stable, well-functioning regulatory systems]. Policy integration and public-private collaboration are other areas to improve. In terms of integrated policy development, we need to encourage cross-sectional policymaking alignments, bringing the industrial, science, and trade sectors closer to create a coherent investment in the regulatory environment. Engaging private-sector voices in shaping regulatory reforms is important to innovating technology, developing skills, and modernizing regulatory technologies. For instance, we can fast-track product entry into the market by leveraging blockchain technology in regulatory affairs to expand training, technical education, and international partnerships like WHO PQ. Inconsistent adoption of international standards is another issue. There are disparities between local regulators and international standards that complicate compliance and block access to global markets, especially in high-growth sectors, such as pharmaceuticals and food processing.  Finally, trade barriers have emerged as another bottleneck. Persistent non-tariff barriers and the slow implementation of agreements like the African Continental Free Trade Area restrict intra-African trade and regulatory harmonization efforts.  So how do we overcome these challenges? We need regulatory reforms and harmonization to streamline bureaucratic processes from regional regulators to continental ones, like AMA. This will make it easier for businesses to expand across borders and tap into larger markets.  GHTC: This is a great transition to our last question: what do you envision for AMA as an agency for the next five to ten years?  Dr. Djoudalbaye: In the next five to ten years, I want to see AMA poised to become a cornerstone of Africa’s health regulatory landscape and shape the continent’s access to safe, effective, and high-quality medical products. We must also eliminate substandard and falsified products, and I see that as an avenue for a quick win for the agency. Overall, AMA’s emergence will signify a unified and collaborative regulatory framework that is vital for the continent.  Decentralization and harmonization are important to continental regulatory leadership. This will also strengthen national agencies, so we need to build capacity at the continental, regional, and country levels. However, AMA cannot solve everything. Integration of these levels will be essential for the scientific capabilities of the agency. I want to see AMA as a high-quality and independent organization, so its regulatory decisions are evidence-based and preserve scientific integrity.  GHTC: Thank you for your time, your insights, and your proposed solutions.