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Evaluation of the Efficacy and Safety of VX-864 in Subjects With the PiZZ Genotype

Phase 2
Completed
Conditions
Alpha1-Antitrypsin Deficiency
Interventions
Drug: Placebo
Registration Number
NCT04474197
Lead Sponsor
Vertex Pharmaceuticals Incorporated
Brief Summary

This study will evaluate the efficacy, safety and pharmacokinetics (PK) of VX-864 in PiZZ subjects.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
44
Inclusion Criteria
  • Subjects must have a PiZZ genotype confirmed at screening
  • Plasma AAT levels indicating severe deficiency at screening

Key

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 RNAi therapy at any time previously

Other protocol defined Inclusion/Exclusion criteria may apply

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
PlaceboPlaceboParticipants received placebo matched to VX-864 in the treatment period for 28 days.
VX-864 300 mgVX-864Participants received VX-864 300 mg q12h in the treatment period for 28 days.
VX-864 500 mgVX-864Participants received VX-864 500 mg q12h in the treatment period for 28 days.
VX-864 100 mgVX-864Participants received VX-864 100 milligrams (mg) every 12 hours (q12h) in the treatment period for 28 days.
Primary Outcome Measures
NameTimeMethod
Change in Plasma Functional Alpha-1 Antitrypsin (AAT) LevelsFrom Baseline at Day 28
Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Day 1 up to Week 8
Secondary Outcome Measures
NameTimeMethod
Change in Plasma Antigenic AAT LevelsFrom Baseline at Day 28
Observed Pre-dose Plasma Concentration (Ctrough) of VX-864Pre-dose at Day 7, Day 14, Day 21 and Day 28

Trial Locations

Locations (30)

University of Alabama at Birmingham

🇺🇸

Birmingham, Alabama, United States

David Geffen School of Medicine at UCLA

🇺🇸

Los Angeles, California, United States

University of California Davis Medical Center

🇺🇸

Sacramento, California, United States

National Jewish Health

🇺🇸

Denver, Colorado, United States

University of Florida

🇺🇸

Gainesville, Florida, United States

University of Miami Miller School of Medicine

🇺🇸

Miami, Florida, United States

Central Florida Pulmonary

🇺🇸

Orlando, Florida, United States

The University of Iowa Hospitals and Clinics

🇺🇸

Iowa City, Iowa, United States

University of Kansas Medical Center

🇺🇸

Kansas City, Kansas, United States

University of Minnesota

🇺🇸

Minneapolis, Minnesota, United States

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University of Alabama at Birmingham
🇺🇸Birmingham, Alabama, United States

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