Korro to Host Virtual Analyst Day Focused on KRRO-121 for Hyperammonemia
On January 20, 2026, Korro Bio, Inc. (Nasdaq: KRRO) announced plans to conduct a virtual Analyst Day on January 27, 2026, from 8 a.m. to 10 a.m. ET. This event aims to provide an in-depth understanding of KRRO-121, a promising treatment for hyperammonemia, a critical condition related to urea cycle disorders (UCDs) and hepatic encephalopathy (HE).
Event Details and Agenda
The Analyst Day will feature presentations from Korro's management, including:
- Ram Aiyar, PhD, MBA, Chief Executive Officer
- Loic Vincent, PhD, Chief Scientific Officer
- Todd Chappell, MBA, Chief Operating Officer
- Bruce Scharschmidt, MD, hepatologist and UCD/HE expert
- Michelle Dinon, a parent of a child with a urea cycle disorder
During the event, Dr. Scharschmidt will discuss ammonia-driven diseases, while Mrs. Dinon will share her experiences raising a child affected by UCD. Korro will also detail the development and mechanisms behind KRRO-121.
Significance of KRRO-121
Korro's KRRO-121 represents a therapeutic advance, designed to address the unmet need in treating hyperammonemia. This innovative GalNAc-conjugated construct activates existing biological pathways to generate a de novo variant necessary for addressing ammonia levels in patients with UCD and HE.
Key insights during the Analyst Day will include:
- Challenges and barriers surrounding current treatment options for hyperammonemia
- The substantial healthcare burden associated with ammonia-related diseases
- Preclinical data supporting the anticipated regulatory filing for KRRO-121 and its first-in-human trial slated for the second half of 2026
Quotes from Leadership
Ram Aiyar emphasized the importance of the Analyst Day, stating, “Our Analyst Day provides an important opportunity to increase awareness of ammonia-driven diseases, which are challenging to live with and have substantial unmet therapeutic need. We expect that pairing her personal experience with Dr. Scharschmidt’s clinical perspectives and our team’s growing body of evidence supporting the potential of KRRO-121 as a transformative therapy will provide a compelling rationale for advancing this program into the clinic later this year.”
Korro’s Pipeline and Future Developments
At the recent J.P. Morgan Healthcare Conference, Korro outlined its commitment to advancing multiple programs in genetic medicine. Aside from KRRO-121, the company is also developing a GalNAc-conjugated antisense oligonucleotide (ASO) aimed at Alpha-1 Antitrypsin Deficiency (AATD), achieving over 90% in vivo RNA editing—marking the highest reported to date. A development candidate for this program is expected to be nominated in early 2026.
The company’s proprietary RNA editing platform, OPERA®, is also promising advancements in targeting conditions such as amyotrophic lateral sclerosis (ALS).
About Korro Bio
Korro Bio is a biopharmaceutical company dedicated to developing a new class of genetic medicines via RNA editing for both rare and prevalent diseases. The company strives to enhance the specificity and tolerability of therapies by leveraging RNA-based approaches. With a focus on innovative delivery methods and established regulatory pathways, Korro aims to make meaningful contributions to patient health.
About Hyperammonemia
Hyperammonemia is characterized by elevated ammonia levels in the bloodstream, often resulting from defects in the urea cycle. This condition can lead to serious health complications, including neuropsychiatric disorders. Korro's KRRO-121 is designed to stabilize a critical enzyme involved in reducing ammonia levels, thereby offering potential therapeutic benefits for patients affected by UCD and HE.
Forward-Looking Statements
This announcement includes forward-looking statements pertaining to the potential future developments of Korro Bio and its programs, including the expected regulatory filing and timelines for KRRO-121. Investors are encouraged to follow Korro’s official channels for more updates.