Neurocrine Biosciences Highlights Groundbreaking KINECT-HDx Findings

Neurocrine Biosciences Unveils New KINECT-HD Data on INGREZZA

Neurocrine Biosciences, Inc. (NASDAQ: NBIX) has recently presented new data from the KINECT-HD study, showcasing profound advancements in managing chorea symptoms in patients with Huntington's disease. The results, shared at a recent Neuroscience symposium, highlight the effectiveness of INGREZZA (valbenazine) capsules in reducing involuntary movements associated with this challenging condition.

Impact of INGREZZA on Huntington's Disease Chorea

This post-hoc analysis emphasizes the clinically significant impact INGREZZA has in alleviating chorea among adults diagnosed with Huntington's disease. Dr. Eiry W. Roberts, Chief Medical Officer at Neurocrine Biosciences, expressed enthusiasm about these findings, stating, "This analysis reinforces the primary study findings, showing a consistent benefit of INGREZZA in reducing involuntary movements that can affect various body parts.” Importantly, improvements were noted especially in the arms and legs, which are often most severely affected by chorea.

Significance of the KINECT-HD Study

The KINECT-HD study, a comprehensive Phase 3 clinical trial, involved a randomized, double-blind, placebo-controlled methodology aimed at evaluating the efficacy of INGREZZA as a once-daily treatment. This study enrolled 128 adults, focusing on those exhibiting significant chorea symptoms. Throughout the 12-week trial, participants receiving INGREZZA showcased noticeable reductions in chorea severity as measured by the Unified Huntington's Disease Rating Scale (UHDRS Total Maximal Chorea or TMC score).

Key Findings from the KINECT-HD Study

• The post-hoc analysis revealed that more participants showed marked improvements in chorea, with TMC score shifts indicating a significant reduction in involuntary movements.
• Statistically significant enhancements were found for both upper and lower extremities, emphasizing the treatment's effectiveness where severity was highest.
• Average TMC scores improved substantially with INGREZZA, showcasing its potential benefits as a reliable treatment option.

Understanding Chorea and Huntington's Disease

Huntington's disease is a hereditary neurodegenerative disorder characterized by the progressive loss of neurons, leading to diverse motor, cognitive, and psychiatric symptoms. The onset typically occurs between ages 30 and 50, with many experiencing chorea—a disorder marked by uncontrolled and erratic movements that can complicate daily activities. Approximately 41,000 adults in the U.S. are currently living with Huntington's disease, and over 200,000 face the risk of inheriting the condition.

KINECT-HD Study Methodology

The initiative utilized the UHDRS TMC score as its primary efficacy endpoint, alongside secondary endpoints assessing overall clinical improvement in patients. The study demonstrated a remarkable average reduction in TMC score by 3.2 units, which was considered statistically significant, reinforcing the need for such treatments in addressing chorea.

About INGREZZA and Its Applications

INGREZZA is a selective vesicular monoamine transporter 2 (VMAT2) inhibitor that has been FDA-approved for treating tardive dyskinesia and chorea associated with Huntington's disease. Notably, INGREZZA allows for patients to receive a therapeutic dose from the very first day without the need for titration, making it a groundbreaking option for individuals struggling with involuntary movements.

Safety Profile and Adverse Effects

While treatment with INGREZZA has demonstrated striking benefits, it is essential to note potential side effects including sleepiness and additional neurological reactions. Patients are advised to monitor their reactions closely and communicate any changes in mood or behavior to their healthcare provider.

Conclusion: The Future of Huntington's Disease Treatment

The findings from the KINECT-HD study mark an essential step forward in managing Huntington's disease chorea. As Neurocrine Biosciences continues to refine its approaches, the commitment to developing effective treatments for patients remains a priority. The hope is to alleviate the burdens placed on individuals facing this debilitating illness, providing them with the support and care they need to improve their daily lives.

Frequently Asked Questions

What is the KINECT-HD study?

The KINECT-HD study is a Phase 3 clinical trial evaluating the effectiveness of INGREZZA in reducing chorea symptoms in Huntington's disease patients.

Who conducted the KINECT-HD study?

The study was conducted by Neurocrine Biosciences, a leading biopharmaceutical company dedicated to neuroscience.

What are the results of the KINECT-HD study?

The study showed significant improvements in chorea severity within various body regions for patients treated with INGREZZA compared to those on placebo.

What is INGREZZA?

INGREZZA is a selective VMAT2 inhibitor FDA-approved for the treatment of tardive dyskinesia and chorea associated with Huntington's disease.

Are there any side effects of INGREZZA?

Common side effects of INGREZZA may include somnolence, sedation, rash, and trouble with sleep, which should be monitored by healthcare providers.

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