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Healthy VolunteersPhase 1NCT04743414

Drug-drug Interaction Study of CTP-543 and Itraconazole in Healthy Adult Subjects

A Phase 1 study testing CTP-543 in people with Healthy Volunteers, run by Concert Pharmaceuticals 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

This is a Phase 1 open-label study of the effect of itraconazole on the pharmacokinetics of CTP-543 in healthy subjects. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteers
What is being tested?
CTP-543
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteUnited States
Study dates
2 Mar 2021to 5 Apr 2021
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 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Non-smoker who has not used nicotine-containing products for at least 3 months prior to the first dosing and throughout the study
  • Body mass index (BMI) ≥ 18.0 and ≤ 32.0 kg/m2 at Screening
  • Medically healthy with no clinically significant medical history, physical examination, laboratory profiles, vital signs or ECGs
  • If of reproductive age, willing and able to use a medically highly effective form of birth control 30 days prior to first dose, during the study and for 30 days following last dose of study medication.
  • Understands the study procedures in the informed consent form, and be willing and able to comply with the protocol

Who cannot join

  • History or presence of clinically significant medical or psychiatric condition or disease
  • History of any illness that might confound the results of the study or poses an additional risk to the subject by their participation in the study
  • History or presence of alcohol or drug abuse within the past 2 years prior to the first dosing
  • Females who are nursing, pregnant, or planning to become pregnant while in the study, and for 30 days after last dose of study drug
  • Positive results at Screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg) or hepatitis C virus (HCV)
  • A positive test or history of incompletely treated or untreated tuberculosis
  • Donation of > 499 mL of blood or plasma within 56 days of Screening (during a clinical trial or at a blood bank donation) and for 30 days after last dose of study drug

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Clinical Pharmacology of Miami

    Miami, Florida, 33014

Other trials in United States

About this study

Official title: A Phase 1 Open-Label Study to Assess the Effect of a Strong CYP3A4 Inhibitor, Itraconazole, on the Single Dose Pharmacokinetic Profile of CTP-543 in Healthy Adult Subjects

This is a Phase 1 open-label study of the effect of itraconazole on the pharmacokinetics of CTP-543 in healthy subjects.

Being tested
CTP-543
Keywords
Itraconazole, Drug-drug interaction, CTP-543

What participants receive

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

  • CTP-543Drug

    Itraconazole in solution dosage form

Study groups in NCT04743414
Study groupRoleWhat they receive
CTP-543ExperimentalOn Day 1, participants will receive a single oral dose of CTP-543. Following a washout period on Days 2 and 3, participants will receive a single oral dose of itraconazole on Day 4 through Day 8, with a single oral dose of CTP-543 being co-administered on Day 7.
Receives: Drug: CTP-543

What is being measured

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

  1. AUC0-t

    Area Under the Plasma Concentration-Time Profile

    Measured: 48 hours

  2. AUC0-inf

    Area Under the Plasma Concentration-Time Profile From Time Zero Extrapolated to Infinite Time

    Measured: 48 hours

  3. Cmax

    Maximum observed concentration of drug in plasma

    Measured: 48 hours

  4. Tmax

    Time to reach maximum observed concentration of drug in plasma

    Measured: 48 hours

Secondary outcomes (1)
  1. Number of Participants with Adverse Events (AEs)

    An adverse event is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention

    Measured: Up to 40 days

Timeline

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

  1. First posted8 Feb 2021
  2. Study start2 Mar 2021
  3. Primary completion27 Mar 2021
  4. Study completion5 Apr 2021

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
Other
Allocation
Not applicable
Intervention model
Sequential
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04743414
Sponsor's protocol ID
CP543.1007
Status last verified
Apr 2021
First submitted
4 Feb 2021
Last updated
8 Apr 2021
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CTP-543 in people with Healthy Volunteers, run by Concert Pharmaceuticals 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 5 inclusion and 7 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 8 Apr 2021. 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?

AUC0-t (time frame: 48 hours). The study lists 4 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 8 Apr 2021.

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