Effect of Vanzacaftor/Tezacaftor/Deutivacaftor (VNZ/TEZ/D-IVA) on the PK of Rosuvastatin in Healthy Participants

March 27, 2026 updated by: Vertex Pharmaceuticals Incorporated

A Phase 1, Open-label, Drug-Drug Interaction Study to Evaluate the Effect of Multiple Doses of Vanzacaftor/Tezacaftor/Deutivacaftor on the Pharmacokinetics of Rosuvastatin in Healthy Subjects

The purpose of this study is to evaluate the effect of multiple doses of vanzacaftor/tezacaftor/deutivacaftor (VNZ/TEZ/D-IVA) on the PK of rosuvastatin and the safety and tolerability of coadministration of VNZ/TEZ/D-IVA with rosuvastatin.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The study is being conducted to evaluate the effect of multiple doses of VNZ/TEZ/D-IVA on the PK of rosuvastatin and the safety and tolerability of coadministration of VNZ/TEZ/D-IVA with rosuvastatin in healthy participants.

Note: This clinical trial information was submitted voluntarily under the applicable law and, therefore, certain submission deadlines may not apply. (That is, clinical trial information for this applicable clinical trial was submitted under section 402(j)(4)(A) of the Public Health Service Act and 42 CFR11.60and is not subject to the deadlines established by sections 402(j)(2) and (3) of the Public Health Service Act or 42 CFR 11.24and11.44.).

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Kansas
      • Overland Park, Kansas, United States, 66212
        • Altasciences - Kansas City

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Key Inclusion Criteria:

  • Body mass index (BMI) of 18.0 to 32.0 kilogram per meter square (Kg/m^2), both inclusive
  • A total body weight greater than (>)50 kg

Key Exclusion Criteria:

  • History of febrile illness within 5 days before the first dose of study drug
  • Any condition possibly affecting drug absorption
  • Female participants who are pregnant, nursing, or planning to become pregnant during the study or within 90 days after the last dose of the study drug
  • Male participants with a female partner who is pregnant, nursing, or planning to become pregnant during the study or within 90 days after the last dose of the study drug

Other protocol defined Inclusion/Exclusion criteria may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: VNZ/TEZ/D-IVA and Rosuvastatin
Rosuvastatin will be administered to participants as a single oral dose on Day 1 and then co-administered with VNZ/TEZ/D-IVA on Day 18.VNZ/TEZ/D-IVA dose will be administered once daily (qd) from Day 5 to Day 22.
Drug: VNZ/TEZ/D-IVA
Fixed-dose combination (FDC) Tablet for oral administration.
Other Names:
  • VX-121/VX-661/CTP-656
  • VX-121/VX-661/VX-561
  • Vanzacaftor/Tezacaftor/Deutivacaftor
Drug: Rosuvastatin
Tablet for oral administration.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Maximum Observed Concentration (Cmax) of Rosuvastatin in the Absence and Presence of VNZ/TEZ/D-IVA
Time Frame: Day 1 up to Day 23
Day 1 up to Day 23
Area Under the Concentration Time-curve (AUC) of Rosuvastatin in the Absence and Presence of VNZ/TEZ/D-IVA
Time Frame: Day 1 up to Day 23
Day 1 up to Day 23

Secondary Outcome Measures

Outcome Measure
Time Frame
Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time Frame: Day 1 up to Day 39
Day 1 up to Day 39

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Vertex Pharmaceuticals Incorporated

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 12, 2026

Primary Completion (Actual)

February 28, 2026

Study Completion (Actual)

March 12, 2026

Study Registration Dates

First Submitted

January 8, 2026

First Submitted That Met QC Criteria

January 8, 2026

First Posted (Actual)

January 16, 2026

Study Record Updates

Last Update Posted (Actual)

April 2, 2026

Last Update Submitted That Met QC Criteria

March 27, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • VX25-121-014

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Details on Vertex data sharing criteria and process for requesting access can be found at: https://www.vrtx.com/our-science/clinical-trials-data-sharing/

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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