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CompletedNCT05865171Updated Jul 12, 2024

A Study to Evaluate Pharmacokinetics (PK) and Safety of Inaxaplin in Participants With Renal Impairment

A Phase 1 interventional study of IXP in Renal Impairment, sponsored by Vertex Pharmaceuticals Incorporated. Completed at 2 sites in United States. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-07-12.

Sponsored by Vertex Pharmaceuticals Incorporated · Phase 1, Interventional, and Basic science

From the registry’s dates

  • Primary completion was Jun 2024, 2 years 3 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
16
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate the pharmacokinetics and safety of a single dose of Inaxaplin (IXP) in participants with severe renal impairment and healthy participants with normal renal function.

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.).

02

Conditions studied

  • Renal Impairment

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03

In context

Renal Insufficiency

1,995 studies on the registry are indexed under Renal Insufficiency; 173 are open to participants now.

This study's enrollment of 16 is below the median of 43 across 1,504 interventional studies indexed under Renal Insufficiency.

Browse Renal Insufficiency studies →

Lead sponsor

Vertex Pharmaceuticals Incorporated is the lead sponsor of 243 studies on the registry; 19 are open to participants now.

Of its 102 completed or terminated interventional studies of FDA-regulated products, 49 (48%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Key Inclusion Criteria:

  • Body mass index (BMI) of 18.5 to 40.0 kilogram per meter square (kg/m\^2)
  • Stable renal function for at least 1 month prior to enrollment

Key Exclusion Criteria:

  • Uncontrolled hypertension
  • Any condition possibly affecting drug absorption

Other protocol defined Inclusion/Exclusion criteria may apply.

05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
16 participants (actual)

Study arms

  • Experimental
    Cohort 1: Severe Renal Impairment

    Participants will receive a single dose of IXP on Day 1.

    Drug: IXP

  • Experimental
    Cohort 1: Healthy Participants

    Participants will receive a single dose of IXP on Day 1.

    Drug: IXP

Interventions

  • DrugIXP

    Tablets for oral administration.

    Also known as: VX-147, Inaxaplin

06

What researchers measure

Primary outcomes

  1. Maximum Observed Plasma Concentration (Cmax) of IXP

    Time frame: Day 1 up to Day 7

  2. Area Under the Concentration Versus Time Curve From the Time of Dosing Extrapolated to Infinity (AUC0-inf) of IXP

    Time frame: Day 1 up to Day 7

Secondary outcomes

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

    Time frame: Day 1 through completion of study participation (up to a maximum of 17 days)

07

Study locations

2 sites
  • GCP Research
    Ocala, Florida 34471, United States
  • Genesis Clinical Research
    Tampa, Florida 33603, United States
08

References and documents

Individual participant data

Plan to share: 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

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05865171
Lead sponsor
Vertex Pharmaceuticals Incorporated
Responsible party
Sponsor
First posted
May 18, 2023
Start date
Jun 12, 2023
Primary completion
Jun 12, 2024
Completion
Jun 12, 2024
Last update
Jul 12, 2024

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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