#1 Clinical Trials Search in Europe

Synthetic Double-Stranded Sirna Oligonucleotide Directed Against Tmprss6 Mrna And Covalently Linked To A Ligand Containing Three N-Acetylgalactosamine Residues

This article discusses the clinical trials of SLN124, a novel drug being studied for the treatment of Polycythemia Vera (PV). SLN124 is a synthetic double-stranded siRNA oligonucleotide that targets TMPRSS6 mRNA and is linked to a ligand containing three N-acetylgalactosamine residues. The trials aim to assess the safety, efficacy, and potential benefits of SLN124 in managing PV symptoms and reducing the need for phlebotomies in patients with this condition.

Table of Contents

What is SLN124?

SLN124 is an innovative medication being developed to treat Polycythemia Vera (PV), a rare blood disorder. It is classified as a synthetic double-stranded siRNA oligonucleotide that targets a specific gene involved in iron metabolism[1]. This medication is designed to be administered as a subcutaneous injection, which means it is injected just under the skin.

How Does SLN124 Work?

SLN124 works by targeting a gene called TMPRSS6, which plays a role in regulating iron levels in the body. By interfering with this gene’s activity, SLN124 aims to reduce the overproduction of red blood cells that characterizes Polycythemia Vera. The medication is linked to a special molecule containing N-acetylgalactosamine residues, which helps it to be delivered effectively to liver cells where it can carry out its function[1].

What is Polycythemia Vera?

Polycythemia Vera (PV) is a rare blood disorder where the body produces too many red blood cells. This can lead to thickened blood, increasing the risk of blood clots and other complications. Patients with PV often require regular phlebotomies (removal of blood) to keep their red blood cell count under control[1].

Clinical Trial Overview

SLN124 is currently being studied in a clinical trial that consists of two phases[1]:

  1. Phase 1: This is an open-label, dose-finding study to assess the safety, tolerability, and initial effectiveness of SLN124 in patients with PV.
  2. Phase 2: This is a randomized, double-blind, placebo-controlled study to further evaluate the effectiveness and safety of SLN124.

The trial aims to determine if SLN124 can reduce the need for phlebotomies and help maintain appropriate red blood cell levels in patients with PV.

Potential Benefits of SLN124

The potential benefits of SLN124 for patients with Polycythemia Vera include[1]:

  • Reduced need for phlebotomies
  • Better control of red blood cell levels
  • Improved quality of life
  • Potential reduction in PV-related symptoms

The trial will measure these outcomes using various assessments, including blood tests and quality of life questionnaires.

Who is Eligible for the SLN124 Trial?

The trial is open to adult patients (18 years or older) with a confirmed diagnosis of Polycythemia Vera. Key eligibility criteria include[1]:

  • A history of requiring multiple phlebotomies
  • Specific blood test results indicating active PV
  • No recent history of certain other medical conditions or treatments that might interfere with the study

It’s important to note that there are additional specific inclusion and exclusion criteria that healthcare providers will use to determine eligibility.

Safety Considerations

As with any new medication, safety is a primary concern. The trial includes several measures to monitor patient safety<a href="#1":

  • Regular monitoring of adverse events
  • Frequent blood tests and physical examinations
  • Electrocardiograms (ECGs) to monitor heart function
  • Close follow-up of patients throughout the study period

Patients with certain medical conditions or a history of specific health issues may not be eligible for the trial to ensure their safety.

Conclusion

SLN124 represents a promising new approach to treating Polycythemia Vera. By targeting a specific gene involved in iron metabolism, it aims to address the underlying cause of the disease rather than just managing symptoms. The ongoing clinical trial will provide valuable information about the safety and effectiveness of this innovative treatment. For patients with PV who struggle with frequent phlebotomies and ongoing symptoms, SLN124 could potentially offer a new treatment option in the future.

Aspect Details
Drug Name SLN124
Drug Type Synthetic double-stranded siRNA oligonucleotide
Target Condition Polycythemia Vera (PV)
Administration Subcutaneous injection
Trial Phases Phase 1/2
Primary Objectives Assess safety, tolerability, and efficacy in reducing phlebotomy requirements
Secondary Objectives Evaluate pharmacokinetics, pharmacodynamics, and quality of life improvements
Key Inclusion Criteria Adults with confirmed PV diagnosis, history of multiple phlebotomies
Study Duration Up to 181 weeks (approximately 3.5 years)
Primary Endpoint Proportion of patients achieving hematocrit ≤45% without phlebotomies

FAQ

  • What is SLN124 and how does it work? SLN124 is a synthetic double-stranded siRNA oligonucleotide that targets TMPRSS6 mRNA. It is designed to interfere with the production of proteins involved in iron metabolism, potentially helping to manage Polycythemia Vera symptoms by regulating red blood cell production.
  • What are the main objectives of the SLN124 clinical trials? The main objectives include assessing the safety and tolerability of SLN124, evaluating its effect on phlebotomy requirements, determining its pharmacokinetics and pharmacodynamics, and measuring its impact on quality of life for patients with Polycythemia Vera.
  • How is SLN124 administered to patients? SLN124 is administered as a subcutaneous (under the skin) injection.
  • What are the key inclusion criteria for participating in the SLN124 trials? Key inclusion criteria include being 18 years or older, having a confirmed diagnosis of Polycythemia Vera, and having a history of multiple phlebotomies. Patients must also meet specific hematological parameters and be willing to comply with the trial requirements.
  • How long do the SLN124 clinical trials last? The trials consist of multiple phases, including a Phase 1 dose-finding study and a Phase 2 randomized, double-blind, placebo-controlled study. The entire study, including follow-up periods, can last up to 181 weeks (approximately 3.5 years) for some participants.

Ongoing Clinical Trials on Synthetic Double-Stranded Sirna Oligonucleotide Directed Against Tmprss6 Mrna And Covalently Linked To A Ligand Containing Three N-Acetylgalactosamine Residues

  • Study of SLN124 for Patients with Polycythemia Vera

    Not recruiting

    1 1
    Investigated drugs:
    Bulgaria Germany Italy Poland Spain

Glossary

  • Polycythemia Vera (PV): A rare blood cancer where the bone marrow produces too many red blood cells, leading to thickened blood and increased risk of blood clots.
  • siRNA: Small interfering RNA, a type of molecule that can interfere with the expression of specific genes.
  • Phlebotomy: A procedure to remove blood from the body, often used to treat Polycythemia Vera by reducing the number of red blood cells.
  • Hematocrit (Hct): The percentage of red blood cells in the blood, used to diagnose and monitor conditions like Polycythemia Vera.
  • Pharmacokinetics (PK): The study of how a drug moves through the body, including its absorption, distribution, metabolism, and excretion.
  • Pharmacodynamics (PD): The study of how a drug affects the body, including its mechanism of action and therapeutic effects.
  • Subcutaneous (s.c.) injection: An injection given into the fatty tissue just beneath the skin.
  • Double-blind study: A research design where neither the participants nor the researchers know who is receiving the actual treatment or a placebo.
  • Placebo: An inactive substance used in clinical trials to compare the effects of a new drug against a control group.
  • Quality of Life (QoL): A measure of an individual's overall well-being and ability to function in daily life, often used to assess the impact of medical treatments.

References

  1. http://clinicaltrials.eu/trial/study-of-sln124-for-patients-with-polycythemia-vera/