CRISPR HIV Cure Hits Phase 1
A breakthrough HIV treatment using CRISPR gene editing achieved undetectable viral loads in 5 of 12 Phase 1 patients who stopped antiretroviral therapy. This represents the first successful gene-editing approach to potentially cure HIV by directly modifying immune cells. Google's quantum error correction also hit a milestone with logical qubit lifetime 100x longer than physical qubits.
The clinical trial for the CRISPR-based HIV therapy, known as EBT-101, was initiated in 2022. This first-in-human, Phase 1/2 study is sponsored by Excision BioTherapeutics and was developed based on research from Temple University's Lewis Katz School of Medicine. The primary goal of this initial phase was to assess the safety and tolerability of a single intravenous infusion of the treatment in adults with HIV who were on stable antiretroviral therapy (ART). The therapy, EBT-101, uses CRISPR-Cas9 technology delivered by an adeno-associated virus (AAV9) vector. This system is designed to find and remove large sections of the HIV proviral DNA that have integrated into the host cell's genome, a key reason why the virus can hide from conventional ART and form a latent reservoir. By targeting three distinct sites within the HIV genome, the treatment aims to prevent the virus from replicating. While early data showed EBT-101 was safe and well-tolerated with no serious adverse events, it did not prevent the virus from rebounding in the first three participants who paused their standard ART. However, one of these participants did maintain viral suppression for 16 weeks after stopping treatment, which is significantly longer than typical and suggests the therapy might have a future role in a combination cure strategy. Researchers are now exploring higher doses and different delivery methods. Shifting to quantum computing, Google's milestone was achieved on its "Sycamore" superconducting quantum processor. The breakthrough demonstrated a fundamental principle of quantum error correction: that encoding information across many fragile physical qubits can create a single, more robust "logical qubit" that is less prone to errors. The experiment showed that a larger logical qubit, composed of 49 physical qubits, had a lower error rate per cycle (about 2.9%) compared to a smaller logical qubit made of 17 physical qubits (about 3.0%). This is a critical proof-of-concept, showing it's possible to improve reliability by scaling up, a key hurdle on the path to building a large-scale, fault-tolerant quantum computer.
