The power of knowing | Violette Defourt | TEDxBoerhaavedistrictStudio
A speaker asserts that decentralized, molecular point-of-care (POC) testing is vital for improving STI diagnosis by eliminating result delays, thereby sparing patients like Sasha discomfort and improving public health by controlling antimicrobial resistance. The strongest evidence is the potential to enable in-clinic testing and even at-home molecular diagnostics, bypassing the slow, central lab process. The speaker concludes by urging investment to overcome regulatory and cost barriers to achieve this accessibility. ## Theses & Positions - Good diagnostic tests are crucial starting points for all medical journeys. - Current diagnostic tests, though high quality, fail because they require samples to be sent to a central lab, causing patient delays. - Point-of-Care (POC) testing—decentralized testing—allows for rapid diagnosis and treatment directly near the patient. - Molecular POC tests offer significant public health value by preventing over/under-treatments and limiting the development of antimicrobial resistance (AMR). - The ultimate goal should be enabling patients to conduct high-technology diagnostic tests from the place where they feel most comfortable, like home. - Adoption of POC testing requires overcoming technical, regulatory, and market barriers, particularly concerning cost and ensuring controlled usage. ## Concepts & Definitions - **Points of Care (POC) / Decentralized Testing:** Testing implemented closer to the patient and further removed from a central medical setting; the concept was first introduced in the 1960s. - **Molecular Diagnostics:** Technology that allows for direct DNA testing, moving the process closer to the patient and bypassing the need to outsource samples to a central diagnostic lab. - **Antimicrobial Resistance (AMR):** A rising global threat, costing an estimated €9 billion yearly in Europe. - **High Throughput Automation:** Centralized testing method that lowers costs due to scale. - **Design Thinking:** A determinant factor that must guide POC technology development to ensure final market access is cost-effective. ## Mechanisms & Processes - **The Traditional STI Testing Process:** Visit clinic $\rightarrow$ Sample taken $\rightarrow$ Sample sent to central lab $\rightarrow$ Wait days for results $\rightarrow$ Visit clinic again for treatment. - **The POC Process:** Visit clinic $\rightarrow$ Take sample $\rightarrow$ Test results received in 30 minutes $\rightarrow$ Receive treatment immediately, avoiding follow-ups. - **Preventing AMR:** Molecular POC tests provide concrete data to doctors, helping avoid both over- and under-treatments. - **Long-term Cost Consideration:** The avoided cost of infection complications via early POC testing can outweigh the direct added cost of the test. ## Timeline & Sequence - POC testing concept: First introduced in the **1960s**. - Current global health crisis markers: By **2022**, **241 million** people will suffer from malaria; **10 million** from tuberculosis; **3 to 5 million** from seasonal flu; over **1 million** STIs acquired daily. - Outbreak patterns: The W.H.O. has recorded **47 outbreaks** worldwide since the start of **2022**, showing increasing frequency of potential pandemic pathogens. - Start of new initiatives: **Rep Mimic** founded in **2021**. ## Named Entities - **W.H.O.** — World Health Organization. - **Rep Mimic** — a startup company founded in 2021. ## Numbers & Data - Malaria infections projected: **241 million** people in this year. - Tuberculosis infections projected: **10 million** people. - Seasonal flu projections: **3 to 5 million** people. - Daily STI acquisitions: More than **1 million** per day. - Outbreak count: **47** worldwide recorded by the W.H.O. since the start of **2022**. - Treatment window delay consequences: Can lead to a sudden deterioration of symptoms or spreading infections. - Timeframe for ideal POC result: Within **30 minutes**. - Current AMR cost estimate: **€9 billion** yearly in Europe. ## Examples & Cases - **Sasha's STI Test:** 30-year-old man who must wait days for PCR results, causing unnecessary discomfort, culminating in a follow-up visit for treatment. - **Ideal Scenario for Sasha:** Going to a clinic, testing, and leaving within **30 minutes** with an antibiotic prescription. - **Potential Home Testing:** Sasha no longer needing to visit a clinic for STI testing but requesting tests at his doorstep. - **The COVID Pandemic:** Demonstrated the capability of small antigen tests. ## Tools, Tech & Products - **PCR test:** Current standard diagnostic test requiring lab processing. - **Molecular POC tests:** Decentralized testing capability that detects biomarkers and antibodies rapidly. - **STI testing kit:** The focus of Rep Mimic's initial solution. ## Trade-offs & Alternatives - **Central Lab Testing vs. POC Testing:** Central lab (high throughput automation) is cheaper due to scale but slow; POC is fast but can face higher initial costs. - **Short-term vs. Long-term Thinking:** Trade immediate cost concerns for the long-term value of prevention and reduced epidemic burden. ## Counterarguments & Caveats - Some doctors are hesitant about decentralized tests, fearing diagnostics will become a *"free for all uncontrolled, unregulated and unaffordable."* - The bottleneck is not test development, as current POC tests are nearly as accurate as lab-based PCR, but rather the *"technical, regulatory and market barriers"* for better adoption. ## Methodology - **Concept Validation:** Using Sasha's narrative to illustrate the failures of the current diagnostic workflow. - **Adoption Strategy:** Recommending "Design Thinking" to integrate cost-conscious POC technology into existing care settings. - **Implementation Guidance:** Urging the medical community to validate and guide the use of POC tests within the care chain. ## Conclusions & Recommendations - The medical community must support investment in diagnostics to create a developmental and regulatory pipeline for adaptable tools. - POC testing should be adopted to improve patient experience, manage infectious outbreaks, and combat AMR. - Policymakers must consider the long-term public health savings that justify investment in novel, decentralized testing applications. ## Implications & Consequences - If advanced POC molecular testing becomes standard, it has the potential to fundamentally change the care pathway for STIs and other infectious diseases. - Widespread implementation could keep patients with smaller infections from overcrowding essential health care services. ## Verbatim Moments - *"Good diagnostic tests are the starting points for each medical journey."* - *"What if instead Sasha could have gone to the clinic, taken a sample, gotten tested and gone home within 30 minutes with a prescription for the adequate antibiotics."* - *"This concept is called Points of Care, our decentralized testing."* - *"Molecular diagnostic technologies allow us to cuts the central diagnostic lab from the patient journey."* - *"We need to continue supporting the development and implementation of new diagnostics."* - *"Let's make sure we invest where it matters in the power of knowing."*