Sickle Cell DiseasePhase 1NCT02567682
Drug Interaction Study of GBT440 With Caffeine, S-warfarin, Omeprazole, and Midazolam in Healthy Subjects
A Phase 1 study testing GBT440 in people with Sickle Cell Disease, run by Global Blood Therapeutics at 1 site in United States.
Trial summary
The purpose of this study to evaluate the effect of concomitant administration of GBT440 on caffeine (a CYP1A2 probe substrate), S warfarin (a CYP2C9 probe substrate), omeprazole (a CYP2C19 probe substrate), and midazolam (a CYP3A4 probe substrate) plasma concentrations. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Sickle Cell Disease
- What is being tested?
- GBT440
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 24 participants
- Where
- 1 siteUnited States
- Study dates
- Sep 2015to May 2016
- 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
- Subject is a female of non-childbearing potential or male, who is healthy, nonsmoking, and 18 to 55 years old, inclusive, at screening
- Male subjects agree to use contraception
- Willing and able to give written informed consent
Who cannot join
- Evidence or history of clinically significant metabolic, allergic, dermatological, hepatic, renal,hematological, pulmonary, cardiovascular, gastrointestinal, neurological, or psychiatric disorder
- History of hypersensitivity or allergy to drugs, foods, or other substances
- History or presence of abnormal electrocardiogram or hypertension
- History of alcohol abuse, illicit drug use, significant mental illness, physical dependence to any opioid, or any history of drug abuse or addiction within 1 year of screening
- Participated in another clinical trial of an investigational drug within 30 days (or 5 half-lives of the investigational drug, whichever is longer) prior to Screening
Trial locations and contacts
1 site in 1 country.
United States1 site
ICON Early Phase Services, LLC Clinical Research Unit
San Antonio, Texas, 78209
About this study
Official title: A Phase 1, Open-Label Study to Evaluate the Effect of Multiple Doses of GBT440 on the Pharmacokinetics of Probe Substrates for CYP1A2, CYP2C9, CYP2C19, and CYP3A4 in Healthy Subjects
The purpose of this study to evaluate the effect of concomitant administration of GBT440 on caffeine (a CYP1A2 probe substrate), S warfarin (a CYP2C9 probe substrate), omeprazole (a CYP2C19 probe substrate), and midazolam (a CYP3A4 probe substrate) plasma concentrations.
- Conditions
- Sickle Cell Disease
- Being tested
- GBT440
- Keywords
- anemia, sickle cell
- Medical subject headings
- Anemia, Sickle Cell
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GBT440Drug
GBT440 capsules followed by Caffeine, S-warfarin+vitamin K, Omeprazole, and Midazolam
| Study group | Role | What they receive |
|---|---|---|
| Fixed sequence, 2-periods | Experimental | An open-label, fixed sequence, 2-period drug interaction study Period 1 Treatment A: Single dose of drug cocktail on Day 1 Period 2 Treatment B: GBT440 on Days 1 through 3 and Treatment C: Single dose of drug cocktail on Day 4 and GBT440 on Days 4 through 7 Receives: Drug: GBT440 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Peak plasma concentration(Cmax) for caffeine, S warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Area under the plasma concentration-time curve (AUC) from time 0 to the time of the last quantifiable concentration (AUCt) for caffeine, S warfarin, omeprazole, and midazolam
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Area under the plasma concentration time curve from time 0 extrapolated to infinity (AUCinf) for caffeine, S warfarin, omeprazole, and midazolam
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Secondary outcomes (14)
The time that Cmax was observed (tmax) for caffeine, S warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Terminal elimination half-life (t½) for caffeine, S warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Cmax for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
tmax, for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
AUCt for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
AUCinf for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
t1/2 for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Ratio of metabolite to parent Cmax corrected for molecular weight (Cmax M/P) for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Ratio of metabolite to parent AUCt corrected for molecular weight (AUCt M/P)for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Ratio of metabolite to parent AUCinf corrected for molecular weight (AUCinf M/P) for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Cmax for GBT440 in whole blood and plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
tmax for GBT440 in whole blood and plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
AUC from time 0 to 24 hours (AUC0-24) (Days 4 and 7) for GBT440 in whole blood and plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
t1/2 (Day7) for GBT440 in whole blood and plasma
Measured: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Oct 2015 (estimated)
- Study startSep 2015
- Primary completionMay 2016
- Study completionMay 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Sickle Cell DiseaseStudies of the same condition, open and under way.
- 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
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- Global Blood Therapeutics
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Carla Washington, PhD, Study director, Global Blood Therapeutics
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02567682
- Sponsor's protocol ID
- GBT440-003
- Status last verified
- Apr 2017
- First submitted
- 23 Sep 2015
- Last updated
- 12 Apr 2017
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 Apr 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 1, Open-Label Study to Evaluate the Effect of Multiple Doses of GBT440 on the Pharmacokinetics of Probe Substrates for CYP1A2, CYP2C9, CYP2C19, and CYP3A4 in Healthy Subjects
- ClinicalTrials.gov ID
- NCT02567682
- Acronym / sponsor ID
- GBT440-003
- Conditions
- Sickle Cell Disease
- Keywords
- anemia, sickle cell
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- Global Blood TherapeuticsIndustry (pharma, biotech, devices)
- Study start
- Sep 2015
- Primary completion
- May 2016 (actual)
- Study completion
- May 2016 (actual)
- First posted
- 5 Oct 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 purpose of this study to evaluate the effect of concomitant administration of GBT440 on caffeine (a CYP1A2 probe substrate), S warfarin (a CYP2C9 probe substrate), omeprazole (a CYP2C19 probe substrate), and midazolam (a CYP3A4 probe substrate) plasma concentrations.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Fixed sequence, 2-periods | Experimental | Drug: GBT440An open-label, fixed sequence, 2-period drug interaction study Period 1 Treatment A: Single dose of drug cocktail on Day 1 Period 2 Treatment B: GBT440 on Days 1 through 3 and Treatment C: Single dose of drug cocktail on Day 4 and GBT440 on Days 4 through 7 |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Subject is a female of non-childbearing potential or male, who is healthy, nonsmoking, and 18 to 55 years old, inclusive, at screening
- Male subjects agree to use contraception
- Willing and able to give written informed consent
Key exclusion criteria (5 listed)
- Evidence or history of clinically significant metabolic, allergic, dermatological, hepatic, renal,hematological, pulmonary, cardiovascular, gastrointestinal, neurological, or psychiatric disorder
- History of hypersensitivity or allergy to drugs, foods, or other substances
- History or presence of abnormal electrocardiogram or hypertension
- History of alcohol abuse, illicit drug use, significant mental illness, physical dependence to any opioid, or any history of drug abuse or addiction within 1 year of screening
- Participated in another clinical trial of an investigational drug within 30 days (or 5 half-lives of the investigational drug, whichever is longer) prior to Screening
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 |
|---|---|---|
| GBT440GBT440 capsules followed by Caffeine, S-warfarin+vitamin K, Omeprazole, and Midazolam | Drug | Fixed sequence, 2-periods |
Primary outcome
Peak plasma concentration(Cmax) for caffeine, S warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Area under the plasma concentration-time curve (AUC) from time 0 to the time of the last quantifiable concentration (AUCt) for caffeine, S warfarin, omeprazole, and midazolam
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Area under the plasma concentration time curve from time 0 extrapolated to infinity (AUCinf) for caffeine, S warfarin, omeprazole, and midazolam
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
14 secondary outcomes
The time that Cmax was observed (tmax) for caffeine, S warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Terminal elimination half-life (t½) for caffeine, S warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Cmax for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
tmax, for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
AUCt for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
AUCinf for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
t1/2 for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Ratio of metabolite to parent Cmax corrected for molecular weight (Cmax M/P) for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Ratio of metabolite to parent AUCt corrected for molecular weight (AUCt M/P)for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Ratio of metabolite to parent AUCinf corrected for molecular weight (AUCinf M/P) for metabolites of caffeine, warfarin, omeprazole, and midazolam in plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
Cmax for GBT440 in whole blood and plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
tmax for GBT440 in whole blood and plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
AUC from time 0 to 24 hours (AUC0-24) (Days 4 and 7) for GBT440 in whole blood and plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
t1/2 (Day7) for GBT440 in whole blood and plasma
Time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2
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 12 Apr 2017.
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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.
Carla Washington, PhD study director
Global Blood Therapeutics
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 GBT440 in people with Sickle Cell Disease, run by Global Blood Therapeutics 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 3 inclusion and 5 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 Apr 2017. 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?
Peak plasma concentration(Cmax) for caffeine, S warfarin, omeprazole, and midazolam in plasma (time frame: 0 - 168 hours post dose in Period 1 and 0-408 hours post dose in Period 2). The study lists 3 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 Apr 2017.