A Trial to Learn if ALN-PNP is Safe and Well Tolerated in Healthy Adults and Adult Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)
Public ClinicalTrials.gov record NCT05648214. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Three-Part, Phase 1/2a, Randomized, Double-blind, Placebo-Controlled, Single and Multiple Dose Study of the Safety, Tolerability, and Pharmacokinetics of ALN-PNP, an siRNA Targeting PNPLA3, in Healthy Adults and Adult Participants With MASLD
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study is researching an experimental drug called ALN-PNP (called "study drug"). This is a first in human study. The study drug is not approved by any public health agency such as the United States Food and Drug Administration (FDA) for any kind of treatment. This study consists of 3 parts. Part A is focused on healthy participants. Parts B and C of the study are focused on participants who are known to have MASLD and a specific variant of the PNPLA3 gene. The aim of the study is to see how safe, tolerable and effective the study drug is. The study is looking at several other research questions, including: * What side effects may happen from taking the study drug (Parts A, B and C) * How much study drug (Parts A, B and C) and study drug metabolites (byproduct of the body breaking down the study drug) (Parts B and C) are in the blood at different times * Whether the body makes antibodies against the study drug (which could make the study drug less effective or could lead to side effects) (Part A, B and C) * Explore impact of Japanese ethnicity on safety and PK (Pharmacokinetics, or study of what the body does to the drug) of single doses of ALN-PNP over time (Part A) * How the study drug works to change liver fat content in MASLD (Part B and C) * Better understanding of the study drug and MASLD (Part B and C)
Study identification
- NCT ID
- NCT05648214
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 172 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 26, 2022
- Primary completion
- Aug 9, 2027
- Completion
- Aug 9, 2027
- Last update posted
- Apr 15, 2026
2022 – 2027
United States locations
- U.S. sites
- 6
- U.S. states
- 4
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| California Clinical Trials Medical Group | Glendale | California | 91206 | Completed |
| Velocity Clinical research | Los Angeles | California | 90057 | Recruiting |
| Genoma Research Group, Inc | Miami | Florida | 33173 | Recruiting |
| Med Research of Florida, LLC | Miami | Florida | 33186 | Recruiting |
| Tandem Clinical Research | Marrero | Louisiana | 70072 | Recruiting |
| Pioneer Research Solutions | Houston | Texas | 77099 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05648214, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 15, 2026 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05648214 live on ClinicalTrials.gov.