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Cystic FibrosisPhase 1NCT05535959

A Study to Evaluate the Relative Bioavailability of a Fixed-dose Combination Tablet of VX-121/Tezacaftor/Deutivacaftor

A Phase 1 study testing VX-121/TEZ/D-IVA in people with Cystic Fibrosis, run by Vertex Pharmaceuticals Incorporated at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the relative bioavailability of a fixed-dose combination tablet (FDC) of VX-121/tezacaftor/deutivacaftor (VX-121/TEZ/D-IVA). Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Cystic Fibrosis
What is being tested?
VX-121/TEZ/D-IVA
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteUnited States
Study dates
15 Sep 2022to 9 Nov 2022
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 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

Who cannot join

  • History of febrile illness or other acute illness that has not fully resolved within 14 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 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
  • History of cardiovascular disease or central nervous system disease
  • Other protocol defined Inclusion/Exclusion criteria may apply.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • ICON Salt Lake City

    Salt Lake City, Utah, 84124

Other trials in United States

About this study

Official title: A Phase 1, Randomized, Open-label, Crossover Study to Evaluate the Relative Bioavailability of a Fixed-dose Combination Tablet of VX-121, Tezacaftor, and Deutivacaftor in Healthy Adult Subjects

The purpose of this study is to evaluate the relative bioavailability of a fixed-dose combination tablet (FDC) of VX-121/tezacaftor/deutivacaftor (VX-121/TEZ/D-IVA).

Read the detailed description

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 CFR 11.60 and is not subject to the deadlines established by sections 402(j)(2) and (3) of the Public Health Service Act or 42 CFR 11.24 and 11.44.).

Conditions
Cystic Fibrosis
Being tested
VX-121/TEZ/D-IVA
Medical subject headings
Cystic Fibrosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VX-121/TEZ/D-IVADrug

    Also called VX-121/VX-661/CTP-656, VX-121/VX-661/VX-561, VX-121/tezacaftor/deutivacaftor

    FDC tablet for oral administration.

Study groups in NCT05535959
Study groupRoleWhat they receive
Sequence 1ExperimentalParticipants will receive a single dose of reference FDC tablet of VX-121/TEZ/D-IVA in dosing period 1, followed by a single dose of test FDC tablet of VX-121/TEZ/D-IVA in dosing period 2. A washout period of 14 days will be maintained between the 2 dosing periods.
Receives: Drug: VX-121/TEZ/D-IVA
Sequence 2ExperimentalParticipants will receive a single dose of test FDC tablet of VX-121/TEZ/D-IVA in dosing period 1, followed by a single dose of reference FDC tablet of VX-121/TEZ/D-IVA in dosing period 2. A washout period of 14 days will be maintained between the 2 dosing periods.
Receives: Drug: VX-121/TEZ/D-IVA

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximum Observed Plasma Concentration (Cmax) of VX-121, TEZ, and D-IVA

    Measured: Pre-dose up to 288 hours Post-dose

  2. Area Under the Concentration Versus Time Curve (AUC) of VX-121, TEZ, and D-IVA

    Measured: Pre-dose up to 288 hours Post-dose

Secondary outcomes (1)
  1. Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)

    Measured: Day 1 up to Day 28

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Sep 2022
  2. Study start15 Sep 2022
  3. Primary completion9 Nov 2022
  4. Study completion9 Nov 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05535959
Sponsor's protocol ID
VX22-121-009
Status last verified
Sep 2022
First submitted
7 Sep 2022
Last updated
12 Dec 2022
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Details on Vertex data sharing criteria and process for requesting access can be found at: https://www.vrtx.com/independent-research/clinical-trial-data-sharing

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing VX-121/TEZ/D-IVA in people with Cystic Fibrosis, run by Vertex Pharmaceuticals Incorporated at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Dec 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Maximum Observed Plasma Concentration (Cmax) of VX-121, TEZ, and D-IVA (time frame: Pre-dose up to 288 hours Post-dose). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Dec 2022; AzTrials last refreshed its copy on 31 Oct 2026.

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