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ThrombocytopaeniaPhase 1NCT01657552

Eltrombopag/Boceprevir and Eltrombopag/Telaprevir Drug-Drug Interaction Study In Healthy Adult Subjects

A Phase 1 study testing Eltrombopag, Boceprevir and Telaprevir in people with Thrombocytopaenia, run by GlaxoSmithKline 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

The purpose of the current Phase I, open-label, three-period, single sequence, crossover study, TPL116010, is to evaluate the potential drug-drug interaction between eltrombopag (ELT) and bocrprevir (BCP) and between ELT and telaprevir (TLP) in healthy subjects. Read more about this study

Who is it for?
Ages 18 to 64 yearsHealthy volunteers can take part
Conditions the study is for
Thrombocytopaenia
What is being tested?
Eltrombopag, Boceprevir and Telaprevir
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
56 participants
Where
1 siteUnited States
Study dates
1 Aug 2012to 26 Oct 2012
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 64 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy subjects with no clinically significant abnormality identified by physician by evaluation of medical history, physical examination, clinical laboratory tests or electrocardiogram (ECG).
  • Able to swallow and retain oral medication.
  • Male or female subjects between the ages of 18 to 64 years of age inclusive, at the time of signing the informed consent.
  • Capable of giving written informed consent which includes compliance with the requirements and restrictions listed in the consent form. Signed informed consent must be on file prior to screening procedures.
  • Body weight >= 50 kilogram (kg) (110 pounds [lbs]) for men and >=45 kg (99 lbs) for women and body mass index (BMI) of 18.5 to 32.0 kg/ (meters squared) m^2 inclusive.
  • Male subjects, who are not surgically sterile, must agree on abstinence or to use a double barrier method, such as, a condom plus spermicidal agent (foam/gel/film/cream/suppository). This criterion must be followed from the time of the first dose of study medication until 14 days after the last dose of medication.
  • A female subject is eligible to participate if she is neither pregnant nor lactating, and falls into one of the following categories: non-childbearing potential including pre-menopausal females with documented (medical report verification) hysterectomy or bilateral oophorectomy, or postmenopausal females defined as being amenorrheic for greater than 1 year and having serum estradiol and follicle stimulating hormone levels consistent with menopause, child-bearing potential with negative beta human chorionic gonadotropin (βhCG) test and agrees to comply with recognized non-hormonal contraceptive methods from screening or at least two weeks prior to first dose (whichever is earlier) until the follow-up visit. Recognized non-hormonal contraceptive methods include: complete abstinence from intercourse, two forms of barrier contraception (e.g. condom with spermicide, or diaphragm with spermicide), or intrauterine device (IUD).

Who cannot join

  • History of Gilbert's syndrome.
  • History of deep vein thrombosis or other thromboembolic event.
  • History of thrombocytopenia or bleeding due to abnormal platelet number or function.
  • Clotting factor abnormalities associated with hypercoagulability, including Factor V Leiden, Protein C or Protein S deficiency or antithrombin III deficiency.
  • Elevated blood pressure (BP) at screening, Day -1 and at pre-dose (systolic >140 mm Hg [millimeters of mercury], diastolic >90 mmHg). If the subject's BP is elevated on the first measurement, complete two additional BP measurements at least 2 minutes apart and average the three assessments to evaluate this criterion. If averaged BP exceeds the safety criteria, the subject should be excluded.
  • History of atrial fibrillation, mitral valve prolapse, significant heart murmur or vascular bruit.
Show all 17Show fewer
  • Prolonged QTcF interval at screening, Day 1 and at pre-dose (for females and males >450 milliseconds [ms]). If the QTcF interval is prolonged on the initial ECG, then complete two additional ECGs at least 5 minutes apart and take the average QTcF measurements of all three ECGs to evaluate this criterion. If averaged QTcF exceeds the safety criteria, the subject should be excluded.
  • Female subjects currently receiving hormone replacement therapy (HRT).
  • Positive for HIV, hepatitis B virus infection or HCV infection at screening.
  • Positive urine drug screen including serum alcohol at screening or pre-dose (Day -1).
  • History of alcohol/drug abuse or dependence within 12 months of the study. History of alcohol consumption in the past six months exceeding 7 units/week for women and 14 units/week for men (where 1 unit = 5 ounces of wine or 12 ounces of beer or 1.5 ounces of hard liquor).
  • Urinary cotinine levels indicative of smoking at screening or pre-dose (Day -1). History of regular use of tobacco- or nicotine-containing products within 6 months prior to screening.
  • Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication.
  • Exposure to more than four new chemical entities within 12 months prior to the first dosing day.
  • Use of prescription or non-prescription drugs (including aspirin and non-steroidal anti-inflammatory drugs [NSAIDs]), vitamins, herbal and dietary supplements within 7 days (or 14 days if the drug is a potential enzyme inducer, such as St. John's Wort) or 5 half-lives (whichever is longer) prior to the first dose of study medication, unless in the opinion of the investigator and sponsor the medication will not interfere with the study procedures or compromise subject safety.
  • Subjects who have donated plasma within 7 days prior to the screening visit or where participation in this study would result in donation of blood in excess of 500 milliliters (mL) within a 56-day period.
  • History of sensitivity to any of the study medications, or components thereof.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • GSK Investigational Site

    Baltimore, Maryland, 21225

Other trials in United States

About this study

Official title: A Phase I, Open-label, Three-Period, Single Sequence, Crossover Study Evaluating the Drug-Drug Interaction Between Eltrombopag and Boceprevir and Between Eltrombopag and Telaprevir in Healthy Adult Subjects

The purpose of the current Phase I, open-label, three-period, single sequence, crossover study, TPL116010, is to evaluate the potential drug-drug interaction between eltrombopag (ELT) and bocrprevir (BCP) and between ELT and telaprevir (TLP) in healthy subjects. In this study there will be a screening visit, three treatment periods, and a follow-up visit. In Period 1, subjects will receive a single dose of ELT on Day 1, and pharmacokinetic (PK) sampling will occur for 72 hours. In Period 2, subjects will receive BCP/TLP for 10 days with PK sampling for 8 hours. In Period 3, subjects will receive a single dose of ELT with BCP/TLP on Day 1 only with PK sampling for 72 hours. Subjects will return for a follow-up visit within 10 to 14 days of the last dose of study drugs. The total duration of the study from Screening to Follow-up will be approximately 9 weeks.

Being tested
Eltrombopag, Boceprevir, Telaprevir
Keywords
Drug interaction, INCIVEK (telaprevir),, SB-497115 (eltrombopag), Pharmacokinetics, Thrombocytopenia, VICTRELIS (boceprevir)
Medical subject headings
Thrombocytopenia

What participants receive

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

  • EltrombopagDrug

    Each tablet contains 100 mg of Eltrombopag (Dose 200 mg)

  • BoceprevirDrug

    Each capsule contains 200 mg of Boceprevir (Dose 800 mg)

  • TelaprevirDrug

    Each tablet contains 375 mg of Telaprevir (Dose 750 mg)

Study groups in NCT01657552
Study groupRoleWhat they receive
EltrombopagExperimentalSubjects will receive single oral dose of eltrombopag 200 mg in Period 1 with moderate-fat, low-calcium meal.
Receives: Drug: Eltrombopag
BoceprevirExperimentalSubjects will receive boceprevir 800 mg orally every 8 hours (hrs) for 10 days in Period 2 with moderate-fat meals.
Receives: Drug: Boceprevir
TelaprevirExperimentalSubjects will receive telaprevir 750 mg orally every 8 hours hrs for 10 days in Period 2 with moderate-fat meals.
Receives: Drug: Telaprevir
Eltrombopag and BroceprevirExperimentalSubjects will receive eltrombopag 200 mg as single oral dose and boceprevir 800 mg orally every 8 hrs for a day in Period 3 with moderate-fat meals.
Receives: Drug: Eltrombopag; Drug: Boceprevir
Eltrombopag and TelaprevirExperimentalSubjects will receive eltrombopag 200 mg as single oral dose and telaprevir 750 mg orally every 8 hrs for a day in Period 3 with moderate-fat meals.
Receives: Drug: Eltrombopag; Drug: Telaprevir

What is being measured

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

  1. Composite pharmacokinetic (PK) parameters of eltrombopag following administration of boceprevir for 10 days with a single dose of eltrombopag

    Plasma eltrombopag PK Parameters: area under the concentration time-curves from time zero to infinity AUC(0-infinity) and maximum concentration (Cmax).

    Measured: For 17 days

  2. Composite PK parameters of boceprevir following administration of boceprevir for 10 days with a single dose of eltrombopag

    Plasma boceprevir PK Parameters: AUC from time zero to the dosing interval AUC(0-τ), Cmax, and Concentraction at end of the dosing interval (Cτ)

    Measured: For 17 days

  3. Composite PK parameters of eltrombopag following administration of telaprevir for 10 days with a single dose of eltrombopag

    Plasma eltrombopag PK Parameters: AUC(0-infinity) and Cmax

    Measured: For 17 days

  4. Composite PK parameters of telaprevir following administration of telaprevir for 10 days with a single dose of eltrombopag

    Plasma telaprevir PK Parameters: AUC(0-τ), Cmax, and Cτ.

    Measured: For 17 days

Secondary outcomes (7)
  1. Composite PK parameters of eltrombopag following administration of boceprevir for 10 days with a single dose of eltrombopag

    Plasma eltrombopag PK Parameters: AUC from time zero to the last measurable concentration (AUC(0-t)), AUC obtained by extrapolation (%) (%AUCex), time from administration to first quantifiable concentration (tlag), time from administration to Cmax (tmax), elimination half life (t1/2), and apparent clearance (CL/F).

    Measured: For 17 days

  2. Composite PK parameters of boceprevir following administration of boceprevir for 10 days with a single dose of eltrombopag

    Plasma boceprevir PK Parameter: tmax.

    Measured: For 17 days

  3. Composite PK parameters of eltrombopag following administration of telaprevir for 10 days with a single dose of eltrombopag

    Plasma eltrombopag PK Parameters: AUC(0-t), %AUCex, tlag, tmax, t1/2, and CL/F.

    Measured: For 17 days

  4. Composite PK parameters of telaprevir following administration of telaprevir for 10 days with a single dose of eltrombopag

    Plasma telaprevir PK Parameter: tmax.

    Measured: For 17 days

  5. Safety and tolerability as assessed by the collection of adverse events

    Measured: For 28 days

  6. Safety and tolerability as assessed by change from baseline in clinical laboratory tests

    Clinical laboratory tests include hematology, clinical chemistry, urinalysis tests.

    Measured: For 28 days

  7. Safety and tolerability as assessed by change from baseline in vital sign

    Vital sign measurements will include systolic and diastolic blood pressure and pulse rate.

    Measured: For 28 days

Timeline

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

  1. First posted6 Aug 2012 (estimated)
  2. Study start1 Aug 2012
  3. Primary completion26 Oct 2012
  4. Study completion26 Oct 2012

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
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
56 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01657552
Sponsor's protocol ID
116010
Status last verified
Nov 2017
First submitted
2 Aug 2012
Last updated
13 Nov 2017
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Eltrombopag, Boceprevir and Telaprevir in people with Thrombocytopaenia, run by GlaxoSmithKline 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 7 inclusion and 17 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 13 Nov 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?

Composite pharmacokinetic (PK) parameters of eltrombopag following administration of boceprevir for 10 days with a single dose of eltrombopag (time frame: For 17 days). 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 13 Nov 2017.

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