Hepatitis CPhase 1NCT00833378
Drug Interaction Study Between Eltrombopag and Lopinavir/Ritonavir in Healthy Adult Subjects.
A Phase 1 study testing Eltrombopag, Lopinavir/Ritonavir and Eltrombopag and Lopinavir/Ritonavir in people with Hepatitis C, run by GlaxoSmithKline at 1 site in United States.
Trial summary
This is a Phase I, open-label, single sequence, crossover study to be conducted in healthy adult subjects. There will be a screening visit, three treatment periods, and a follow-up visit. In Period 1, subjects will receive a single dose of eltrombopag on Day 1, and PK sampling will occur for 72 hours. Read more about this study
- Who is it for?
- Ages 18 to 64 yearsHealthy volunteers can take part
- Conditions the study is for
- Hepatitis C
- What is being tested?
- Eltrombopag, Lopinavir/Ritonavir and Eltrombopag and Lopinavir/Ritonavir
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteUnited States
- Study dates
- 19 Jan 2009to 11 Mar 2009
- 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 and female subjects between the ages of 18 to 64 years of age inclusive, at the time of signing the informed consent.
- Subject is able to understand and comply with the protocol requirements, instructions and restrictions.
- 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 ≥ 50kg (110 lbs) for men and ≥ 45 kg (99 lbs) for women and body mass index (BMI) of 18.5 to 29.9 kg/m2 inclusive.
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- 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 β 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.
- Any previous history of deep vein thrombosis or any other thromboembolic event. 3. History of thrombocytopenia or bleeding due to abnormal platelet number or function. 4. Clotting factor abnormalities associated with hypercoagulability, specifically Factor V Leiden, Protein C or Protein S deficiency or antithrombin III deficiency. 5. Elevated blood pressure (BP) at screening (systolic >140 mm Hg, diastolic >85 mm Hg). If the subject's BP is elevated on the first measurement, complete two additional BP measurements 2 minutes apart and average the three assessments to evaluate this criteria. If averaged BP exceeds the safety criteria, the subject should be excluded.
- 6. History of atrial fibrillation, mitral valve prolapse, significant heart murmur or vascular bruit. 7. Prolonged QTc interval (Bazett's) at screening (for females > 450 msec and for males > 430 msec). If the QTc interval is prolonged on the initial ECG, then complete two additional ECGs 5 minutes apart and take the average QTc measurements of all three ECGs to evaluate this criteria. If averaged QTc exceeds the safety criteria, the subject should be excluded. 8. Female subjects currently receiving hormone replacement therapy (HRT). 9. Positive for HIV, hepatitis B virus or hepatitis C virus assays at screening.
- 10. Positive urine drug screen including alcohol at screening or pre-dose (Day -1).
- 11. History of alcohol/drug abuse or dependence within 12 months of the study. RM2008/00650/00 CONFIDENTIAL TPL111716 25 CONFIDENTIAL RM2008/00650/00 TPL111716 26 12. 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). 13. 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. 14. Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) preceding the first dose of study medication. 15. Exposure to more than four new chemical entities within 12 months prior to the first dosing day. 16. 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. 17. 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 mL within a 56-day period. 18. History of sensitivity to any of the study medications, or components thereof.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Phase I, Open-label, Single Sequence, Crossover Study Evaluating the Safety and the Pharmacokinetics of Lopinavir/Ritonavir and Eltrombopag Given Alone and When Co-administered in Healthy Adult Subjects.
This is a Phase I, open-label, single sequence, crossover study to be conducted in healthy adult subjects. There will be a screening visit, three treatment periods, and a follow-up visit. In Period 1, subjects will receive a single dose of eltrombopag on Day 1, and PK sampling will occur for 72 hours. In Period 2, subjects will receive LPV/RTV for 14 days with PK sampling for 12 hours. In Period 3, subjects will receive a single dose of eltrombopag with LPV/RTV 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.
- Conditions
- Hepatitis C
- Being tested
- Eltrombopag, Lopinavir/Ritonavir, Eltrombopag and Lopinavir/Ritonavir
- Keywords
- Drug interaction, SB-497115 (eltrombopag), Kaletra (Lopinavir, Ritonavir),thrombocytopenia, pharmacokinetics
- Medical subject headings
- Hepatitis C
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EltrombopagDrug
Eltrombopag 100 mg single oral dose
Lopinavir/RitonavirDrug
Lopinavir/Ritonavir 400/100 mg oral dose given twice a day for 14 days
Eltrombopag and Lopinavir/RitonavirDrug
Elrombopag 100 mg single oral dose and Lopinavir/Ritonavir 400/100 mg oral dose given in the AM and PM
| Study group | Role | What they receive |
|---|---|---|
| Period 2 | Active comparator | Treatment B Receives: Drug: Lopinavir/Ritonavir |
| Period 1 | Active comparator | Treatment A Receives: Drug: Eltrombopag |
| Period 3 | Active comparator | Treatment C Receives: Drug: Eltrombopag and Lopinavir/Ritonavir |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pharmacokinetic parameters per the protocol
Measured: sixteen days
Secondary outcomes (2)
Safety parameters including vital signs, laboratory assessments, ECG measurements and adverse events reporting
Measured: sixteen days of treatment and follow-up period.
Pharmacokinetic parameters per the protocol
Measured: sixteen days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Feb 2009 (estimated)
- Study start19 Jan 2009
- Primary completion11 Mar 2009
- Study completion11 Mar 2009
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 Hepatitis CStudies of the same condition, open and under way.
- More trials run by GlaxoSmithKlineThe 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
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- GlaxoSmithKline
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00833378
- Sponsor's protocol ID
- 111716
- Status last verified
- Nov 2017
- First submitted
- 29 Jan 2009
- Last updated
- 14 Nov 2017
- Results posted
- No
Publications
Wire MB, McLean HB, Pendry C, Theodore D, Park JW, Peng B. Assessment of the pharmacokinetic interaction between eltrombopag and lopinavir-ritonavir in healthy adult subjects. Antimicrob Agents Chemother. 2012 Jun;56(6):2846-51. doi: 10.1128/AAC.05214-11. Epub 2012 Mar 5.
PubMed 22391553
Study at a glance
From the registry record, last updated by the sponsor on 14 Nov 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase I, Open-label, Single Sequence, Crossover Study Evaluating the Safety and the Pharmacokinetics of Lopinavir/Ritonavir and Eltrombopag Given Alone and When Co-administered in Healthy Adult Subjects.
- ClinicalTrials.gov ID
- NCT00833378
- Acronym / sponsor ID
- 111716
- Conditions
- Hepatitis C
- Keywords
- Drug interaction, SB-497115 (eltrombopag), Kaletra (Lopinavir, Ritonavir),thrombocytopenia, pharmacokinetics
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- GlaxoSmithKlineIndustry (pharma, biotech, devices)
- Study start
- 19 Jan 2009 (actual)
- Primary completion
- 11 Mar 2009 (actual)
- Study completion
- 11 Mar 2009 (actual)
- First posted
- 2 Feb 2009 (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.
This is a Phase I, open-label, single sequence, crossover study to be conducted in healthy adult subjects. There will be a screening visit, three treatment periods, and a follow-up visit. In Period 1, subjects will receive a single dose of eltrombopag on Day 1, and PK sampling will occur for 72 hours. In Period 2, subjects will receive LPV/RTV for 14 days with PK sampling for 12 hours. In Period 3, subjects will receive a single dose of eltrombopag with LPV/RTV 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.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Period 2 | Active comparator | Drug: Lopinavir/RitonavirTreatment B |
| Period 1 | Active comparator | Drug: EltrombopagTreatment A |
| Period 3 | Active comparator | Drug: Eltrombopag and Lopinavir/RitonavirTreatment C |
Who may qualify
- Ages
- 18 to 64 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (10 listed)
- 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 and female subjects between the ages of 18 to 64 years of age inclusive, at the time of signing the informed consent.
- Subject is able to understand and comply with the protocol requirements, instructions and restrictions.
- 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.
Key exclusion criteria (6 listed)
- History of Gilbert's syndrome.
- Any previous history of deep vein thrombosis or any other thromboembolic event. 3. History of thrombocytopenia or bleeding due to abnormal platelet number or function. 4. Clotting factor abnormalities associated with hypercoagulability, specifically Factor V Leiden, Protein C or Protein S deficiency or antithrombin III deficiency. 5. Elevated blood pressure (BP) at screening (systolic >140 mm Hg, diastolic >85 mm Hg). If the subject's BP is elevated on the first measurement, complete two additional BP measurements 2 minutes apart and average the three assessments to evaluate this criteria. If averaged BP exceeds the safety criteria, the subject should be excluded.
- 6. History of atrial fibrillation, mitral valve prolapse, significant heart murmur or vascular bruit. 7. Prolonged QTc interval (Bazett's) at screening (for females > 450 msec and for males > 430 msec). If the QTc interval is prolonged on the initial ECG, then complete two additional ECGs 5 minutes apart and take the average QTc measurements of all three ECGs to evaluate this criteria. If averaged QTc exceeds the safety criteria, the subject should be excluded. 8. Female subjects currently receiving hormone replacement therapy (HRT). 9. Positive for HIV, hepatitis B virus or hepatitis C virus assays at screening.
- 10. Positive urine drug screen including alcohol at screening or pre-dose (Day -1).
- 11. History of alcohol/drug abuse or dependence within 12 months of the study. RM2008/00650/00 CONFIDENTIAL TPL111716 25 CONFIDENTIAL RM2008/00650/00 TPL111716 26 12. 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). 13. Urinary cotinine levels indicative of smoking at screening or pre-dose (Day -1).
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 |
|---|---|---|
| EltrombopagEltrombopag 100 mg single oral dose | Drug | Period 1 |
| Lopinavir/RitonavirLopinavir/Ritonavir 400/100 mg oral dose given twice a day for 14 days | Drug | Period 2 |
| Eltrombopag and Lopinavir/RitonavirElrombopag 100 mg single oral dose and Lopinavir/Ritonavir 400/100 mg oral dose given in the AM and PM | Drug | Period 3 |
Primary outcome
Pharmacokinetic parameters per the protocol
Time frame: sixteen days
2 secondary outcomes
Safety parameters including vital signs, laboratory assessments, ECG measurements and adverse events reporting
Time frame: sixteen days of treatment and follow-up period.
Pharmacokinetic parameters per the protocol
Time frame: sixteen 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 14 Nov 2017.
- Background: PubMed 22391553Wire MB, McLean HB, Pendry C, Theodore D, Park JW, Peng B. Assessment of the pharmacokinetic interaction between eltrombopag and lopinavir-ritonavir in healthy adult subjects. Antimicrob Agents Chemother. 2012 Jun;56(6):2846-51. doi: 10.1128/AAC.05214-11. Epub 2012 Mar 5.
- Results for study 111716 can be found on the GSK Clinical Study Register.Link provided by the sponsor.
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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.
GSK Clinical Trials study director
GlaxoSmithKline
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 Eltrombopag, Lopinavir/Ritonavir and Eltrombopag and Lopinavir/Ritonavir in people with Hepatitis C, 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 10 inclusion and 6 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 14 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?
Pharmacokinetic parameters per the protocol (time frame: sixteen days). 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 NCT00833378, 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 14 Nov 2017.