Healthy VolunteersPhase 1NCT02430545
Understanding The Effect Of A Strong CYP3A4 Inducer On Glasdegib Pharmacokinetics
A Phase 1 study testing Glasdegib and Rifampin in people with Healthy Volunteers, run by Pfizer at 1 site in United States.
Trial summary
The study also aims to determine the effect of a strong enzyme (CYP3A4) inducer-rifampin- on drug exposure of Glasdegib. This study will be conducted in healthy subjects given a single dose of glasdegib in each period. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy Volunteers
- What is being tested?
- Glasdegib and Rifampin
- 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 siteUnited States
- Study dates
- May 2015to Jun 2015
- 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
- Healthy female subjects of non-childbearing potential and/or male subjects who, at the time of screening, are between the ages of 18 and 55 years, inclusive. Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG or clinical laboratory tests.
- Female subjects of non childbearing potential must meet at least one of the following criteria:
- Achieved postmenopausal status, defined as follows: cessation of regular menses for at least 12 consecutive months with no alternative pathological or physiological cause; AND have a serum follicle-stimulating hormone (FSH) level confirming the post-menopausal state;
- Have undergone a documented hysterectomy and/or bilateral oophorectomy;
- Have medically confirmed ovarian failure.
- All other female subjects (including females with tubal ligations) will be considered to be of childbearing potential.
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- Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lbs).
- Evidence of a personally signed and dated informed consent document indicating that the subject has been informed of all pertinent aspects of the study.
- Subjects who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, and other study procedures.
Who cannot join
- A positive urine drug screen
- Screening supine 12 lead ECG demonstrating QTc >450 msec or a QRS interval >120 msec. If QTc exceeds 450 msec, or QRS exceeds 120 msec, the ECG should be repeated two more times and the average of the three QTc or QRS values should be used to determine the subject's eligibility.
- Subjects with family history of myocardial infarction, congenital long QT syndrome, torsades de pointes or clinically significant ventricular arrhythmias.
- Pregnant female subjects; breastfeeding female subjects; male subjects with partners currently pregnant; male subjects able to father children who are unwilling or unable to use two highly effective methods of contraception as outlined in this protocol for the duration of the study and for at least 90 days after the last dose of investigational product and, refrain from sperm donation for the duration of the study and for at least 90 days after the last dose of investigational product.
Trial locations and contacts
1 site in 1 country.
United States1 site
New Haven Clinical Research Unit
New Haven, Connecticut, 06511
About this study
Official title: A Phase 1, Open-label, Fixed-sequence, 2-period Study In Healthy Volunteers To Investigate The Effect Of Multiple Doses Of Rifampin On Single Dose Glasdegib (Pf-04449913) Plasma Pharmacokinetics
The study also aims to determine the effect of a strong enzyme (CYP3A4) inducer-rifampin- on drug exposure of Glasdegib. This study will be conducted in healthy subjects given a single dose of glasdegib in each period.
- Conditions
- Healthy Volunteers
- Being tested
- Glasdegib, Rifampin
- Keywords
- Glasdegib, PF-04449913, Drug-drug interaction, CYP3A4 inducer, Pharmacokinetics
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GlasdegibDrug
Subjects receive a 100mg oral dose of glasdegib under fasted conditions with washout, then single 100mg oral dose of glasdegib under fasted following dosing to steady state with rifampin
RifampinDrug
Subjects receive rifampin 600 mg oral dose daily [Day -6 to day 4]
| Study group | Role | What they receive |
|---|---|---|
| Glasdegib, Rifampin | Experimental | Subjects receive a 100mg oral dose of glasdegib under fasted conditions with washout, then single 100mg oral dose of glasdegib under fasted following dosing to steady state with rifampin Receives: Drug: Glasdegib; Drug: Rifampin |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximum Observed Plasma Concentration (Cmax)
Measured: 5 days
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - 8)]
Measured: 5 days
Secondary outcomes (5)
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)
Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast)
Measured: 5 days
Apparent Oral Clearance (CL/F)
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.
Measured: 5 days
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Measured: 5 days
Apparent Volume of Distribution (Vz/F)
Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.
Measured: 5 days
Plasma Decay Half-Life (t1/2)
Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.
Measured: 5 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Apr 2015 (estimated)
- Study startMay 2015
- Primary completionJun 2015
- Study completionJun 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Healthy VolunteersStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02430545
- Sponsor's protocol ID
- B1371015
- Status last verified
- Jun 2015
- First submitted
- 27 Apr 2015
- Last updated
- 25 Jun 2015
- Results posted
- No
- Data monitoring committee
- No
Publications
Shaik MN, Hee B, Wei H, LaBadie RR. Evaluation of the effect of rifampin on the pharmacokinetics of the Smoothened inhibitor glasdegib in healthy volunteers. Br J Clin Pharmacol. 2018 Jun;84(6):1346-1353. doi: 10.1111/bcp.13568. Epub 2018 Apr 10.
PubMed 29488303
Study at a glance
From the registry record, last updated by the sponsor on 25 Jun 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 1, Open-label, Fixed-sequence, 2-period Study In Healthy Volunteers To Investigate The Effect Of Multiple Doses Of Rifampin On Single Dose Glasdegib (Pf-04449913) Plasma Pharmacokinetics
- ClinicalTrials.gov ID
- NCT02430545
- Acronym / sponsor ID
- B1371015
- Conditions
- Healthy Volunteers
- Keywords
- Glasdegib, PF-04449913, Drug-drug interaction, CYP3A4 inducer, Pharmacokinetics
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 12 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- May 2015
- Primary completion
- Jun 2015 (actual)
- Study completion
- Jun 2015 (actual)
- First posted
- 30 Apr 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The study also aims to determine the effect of a strong enzyme (CYP3A4) inducer-rifampin- on drug exposure of Glasdegib. This study will be conducted in healthy subjects given a single dose of glasdegib in each period.
Study design
- Primary purpose
- Basic science
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Glasdegib, Rifampin | Experimental | Drug: Glasdegib, Drug: RifampinSubjects receive a 100mg oral dose of glasdegib under fasted conditions with washout, then single 100mg oral dose of glasdegib under fasted following dosing to steady state with rifampin |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (9 listed)
- Healthy female subjects of non-childbearing potential and/or male subjects who, at the time of screening, are between the ages of 18 and 55 years, inclusive. Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG or clinical laboratory tests.
- Female subjects of non childbearing potential must meet at least one of the following criteria:
- All other female subjects (including females with tubal ligations) will be considered to be of childbearing potential.
- Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lbs).
- Evidence of a personally signed and dated informed consent document indicating that the subject has been informed of all pertinent aspects of the study.
Key exclusion criteria (4 listed)
- A positive urine drug screen
- Screening supine 12 lead ECG demonstrating QTc >450 msec or a QRS interval >120 msec. If QTc exceeds 450 msec, or QRS exceeds 120 msec, the ECG should be repeated two more times and the average of the three QTc or QRS values should be used to determine the subject's eligibility.
- Subjects with family history of myocardial infarction, congenital long QT syndrome, torsades de pointes or clinically significant ventricular arrhythmias.
- Pregnant female subjects; breastfeeding female subjects; male subjects with partners currently pregnant; male subjects able to father children who are unwilling or unable to use two highly effective methods of contraception as outlined in this protocol for the duration of the study and for at least 90 days after the last dose of investigational product and, refrain from sperm donation for the duration of the study and for at least 90 days after the last dose of investigational product.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| GlasdegibSubjects receive a 100mg oral dose of glasdegib under fasted conditions with washout, then single 100mg oral dose of glasdegib under fasted following dosing to steady state with rifampin | Drug | Glasdegib, Rifampin |
| RifampinSubjects receive rifampin 600 mg oral dose daily [Day -6 to day 4] | Drug | Glasdegib, Rifampin |
Primary outcome
Maximum Observed Plasma Concentration (Cmax)
Time frame: 5 days
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - 8)]
Time frame: 5 days
5 secondary outcomes
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)
Time frame: 5 days
Apparent Oral Clearance (CL/F)
Time frame: 5 days
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: 5 days
Apparent Volume of Distribution (Vz/F)
Time frame: 5 days
Plasma Decay Half-Life (t1/2)
Time frame: 5 days
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Jun 2015.
- Derived from this study: PubMed 29488303Shaik MN, Hee B, Wei H, LaBadie RR. Evaluation of the effect of rifampin on the pharmacokinetics of the Smoothened inhibitor glasdegib in healthy volunteers. Br J Clin Pharmacol. 2018 Jun;84(6):1346-1353. doi: 10.1111/bcp.13568. Epub 2018 Apr 10.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Glasdegib and Rifampin in people with Healthy Volunteers, run by Pfizer 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 9 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 25 Jun 2015. 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) (time frame: 5 days). 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?
On the ClinicalTrials.gov record for NCT02430545, which also lists 1 linked publication.
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 25 Jun 2015.