A Study to Evaluate Efficacy and Safety of VX-864 in Participants With the PiZZ Genotype

NCT ID: NCT05643495

Last Updated: 2025-09-08

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

14 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-23

Study Completion Date

2024-08-19

Brief Summary

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The purpose of this study evaluates the efficacy and safety of VX-864 in participants with the PiZZ genotype over 48 weeks.

Detailed Description

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Conditions

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Alpha-1 Antitrypsin Deficiency

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Group A

Participants received VX-864 every 12 hours (q12h) for 48 weeks or until study drug dosing was terminated.

Group Type EXPERIMENTAL

VX-864

Intervention Type DRUG

Tablets for oral administration.

Group B

Participants undergo a liver biopsy before receiving VX-864 q12h for 48 weeks or until study drug dosing was terminated, and undergo a second liver biopsy at either Week 24 or Week 48.

Group Type EXPERIMENTAL

VX-864

Intervention Type DRUG

Tablets for oral administration.

Interventions

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VX-864

Tablets for oral administration.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Participants must have a PiZZ genotype confirmed at screening
* Plasma AAT levels indicating severe deficiency at screening

Exclusion Criteria

* History of a medical condition that could negatively impact the ability to complete the study
* Solid organ, or hematological transplantation or is currently on a transplant list
* History of use of gene therapy or Ribonucleic acid interference (RNAi) therapy at any time previously
* Participants for whom discontinuation of augmentation therapy is not considered to be in their best interest, based on the clinical judgement of the treating physician
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Vertex Pharmaceuticals Incorporated

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University of Florida

Gainesville, Florida, United States

Site Status

Central Florida Pulmonary Group, P.A.

Orlando, Florida, United States

Site Status

The University of Iowa Hospitals and Clinics: Adult Pulmonary Clinic

Iowa City, Iowa, United States

Site Status

University of Kansas Medical Center

Kansas City, Kansas, United States

Site Status

Hannibal Regional Healthcare System

Hannibal, Missouri, United States

Site Status

Columbia University Irving Medical Center

New York, New York, United States

Site Status

Marsico Clinical Research Center at UNC Pulmonary Clinic

Chapel Hill, North Carolina, United States

Site Status

Renovatio Clinical

Houston, Texas, United States

Site Status

University of Utah Health

Salt Lake City, Utah, United States

Site Status

Inova Fairfax Medical Campus

Falls Church, Virginia, United States

Site Status

University Hospital RWTH Aachen

Aachen, , Germany

Site Status

Royal College of Surgeons in Ireland Clinical Research Centre, Beaumont Hospital

Beaumont, , Ireland

Site Status

King's College Hospital

London, , United Kingdom

Site Status

Countries

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United States Germany Ireland United Kingdom

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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2022-002746-40

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

VX22-864-108

Identifier Type: -

Identifier Source: org_study_id

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