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Healthy ParticipantsPhase 1NCT03821493

Effect of Multiple Doses of Itraconazole on the Pharmacokinetics of a Single-Dose of PF-06651600 in Healthy Participants

A Phase 1 study testing PF-06651600 10 mg tablets and Itraconazole Solution 200 mg in people with Healthy Participants, run by Pfizer at 1 site in Belgium.

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 study will estimate the impact of a strong CYP3A4 inhibitor (itraconazole) on the pharmacokinetics of an investigational product (PF-06651600) in healthy adult participants. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Participants
What is being tested?
PF-06651600 10 mg tablets and Itraconazole Solution 200 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteBelgium
Study dates
21 Feb 2019to 4 Jun 2019
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

  • Willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations and other study procedures.
  • Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg.

Who cannot join

  • Evidence of congestive heart failure or history of congestive heart failure or any of the following: myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass graft, cerebrovascular accident including transient ischemic attack or pulmonary embolus.
  • Known hypersensitivity to itraconazole or it excipients or to other azole antifungals.
  • Infection with Hepatitis B, C or HIV
  • Known present or history of malignancy other than a successfully treated or excised non-metastatic basal cell or squamous cell cancer of the skin or cervical carcinoma in situ.

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Pfizer Clinical Research Unit

    Brussels, Be-bru, B-1070

Other trials in Belgium

About this study

Official title: A PHASE 1, OPEN-LABEL, FIXED SEQUENCE 2-PERIOD STUDY TO INVESTIGATE THE EFFECT OF MULTIPLE DOSES OF ITRACONAZOLE ON THE PHARMACOKINETICS OF A SINGLE DOSE OF PF-06651600 IN HEALTHY PARTICIPANTS

This study will estimate the impact of a strong CYP3A4 inhibitor (itraconazole) on the pharmacokinetics of an investigational product (PF-06651600) in healthy adult participants.

This is an open-label, fixed sequence two period study with healthy participants that will receive a single dose of PF-06651600 alone and co-administered with multiple doses of itraconazole at a single center.

Participants will be screened within 28 days of the first dose of the investigational products and if entry criteria are met, the participant will report to the clinic on the day before the Day 1 visit. On Day 1 of Period 1, each participant will receive a 30 mg dose of PF-06651600 and PK samples will be collected for 48 hours. In Period 2, participants will receive itraconazole solution from Day 1-5. On Day 4 of Period 2 the participant will receive 30 mg of PF-06651600 with the itraconazole. PK samples will be collected up to 48 hours after the PF-06651600 dose. Participants will be confined for a total of 9 days in the clinic. The participant will be followed up by phone contact.

Being tested
PF-06651600 10 mg tablets, Itraconazole Solution 200 mg
Keywords
PF-06651600, Itraconazole, CYP3A4, Drug-Drug Interaction

What participants receive

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

  • PF-06651600 10 mg tabletsDrug

    On Day 1 in Period 1, a single oral dose of 30 mg (3 x 10 mg tablets) will be administered.

    On Day 4 of Period 2, a single oral dose of 30 mg (3 x 10 mg tablets) will be administered after itraconazole.

  • Itraconazole Solution 200 mgDrug

    Also called Sporanox Oral Solution

    Itraconazole 200 mg will be administered as 20 mL (10 mg/mL) oral solution once daily on Days 1-5 in Period 2.

    On Day 4 of Period 2, co-administration of itraconazole 200 mg and PF-06651600 30 mg will occur. Itraconazole will be administered first followed by PF-06651600 tablets.

Study groups in NCT03821493
Study groupRoleWhat they receive
PF-06651600 treatment armExperimentalThis arm includes two treatment periods. Period 1-Single oral dose of PF-06651600 30 mg as tablets on Day 1 followed by Period 2 in which itraconazole 200 mg (oral solution) is given for 5 days. On Day 4 of Period 2, a single oral dose of PF-06651600 30 mg is given with itraconazole
Receives: Drug: PF-06651600 10 mg tablets; Drug: Itraconazole Solution 200 mg

What is being measured

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

  1. Single dose Area under the curve from time zero to infinity [AUC (0-inf)] of PF-06651600

    Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinity.

    Measured: 0, 0.5, 1, 2, 4, 6, 8, 12, 16, 24 and 48 hours

  2. Maximum observed plasma concentration of PF-06651600

    Peak concentration of PF-06651600

    Measured: 0, 0.5, 1, 2, 4, 6, 8, 12, 16, 24 and 48 hours

Secondary outcomes (4)
  1. Incidence of treatment-emergent adverse events (AEs)

    Measured: Baseline up to 35 days

  2. Number of adverse events leading to discontinuation

    Measured: Baseline up to 35 days

  3. Number of participants with clinically significant change in vital signs from Baseline

    Measured: Baseline to Day 9

  4. Number of participants with clinically significant abnormalities in clinical laboratory values

    Measured: Baseline to Day 9

Timeline

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

  1. First posted29 Jan 2019
  2. Study start21 Feb 2019
  3. Primary completion6 Apr 2019
  4. Study completion4 Jun 2019

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
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03821493
Sponsor's protocol ID
B7981023
Other IDs
2018-004664-55, 2018
Status last verified
Jun 2019
First submitted
28 Jan 2019
Last updated
28 Jun 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing PF-06651600 10 mg tablets and Itraconazole Solution 200 mg in people with Healthy Participants, run by Pfizer at 1 site in Belgium.

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 4 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 28 Jun 2019. 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 Belgium. 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?

Single dose Area under the curve from time zero to infinity [AUC (0-inf)] of PF-06651600 (time frame: 0, 0.5, 1, 2, 4, 6, 8, 12, 16, 24 and 48 hours). 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 28 Jun 2019.

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