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Hepatitis CPhase 1NCT01332552

A First Time in Human Study to Assess the Safety, Tolerability, Pharmacokinetics, and Antiviral Activity of Single and Repeat Doses of GSK2485852 in Chronically Infected Hepatitis C Subjects

A Phase 1 study testing GSK2485852 70 mg, GSK2485852 420 mg and GSK2485852 630 mg in people with Hepatitis C, run by GlaxoSmithKline at 5 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

GSK2485852 is a Hepatitis C NS5B site IV non-nucleoside polymerase inhibitor being developed for the treatment of chronic HCV infection. HBI115040 is the first administration of GSK2485852 in humans to establish the initial safety, tolerability, pharmacokinetic, and antiviral profile. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Hepatitis C
What is being tested?
GSK2485852 70 mg, GSK2485852 420 mg and GSK2485852 630 mg
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
27 participants
Where
5 sitesUnited States
Study dates
14 Jan 2011to 6 Apr 2011
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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • A subject will be eligible for inclusion in this study only if all of the following criteria apply: Healthy as determined by a responsible and experienced physician, based on a medical evaluation including medical history, physical examination, laboratory tests and cardiac monitoring (i.e., ECG), including no cardiac, pulmonary, hepatic, biliary, gastrointestinal, or renal disorders, or cancer within the past 5 years.
  • Males or females between 18 and 65 years of age inclusive, at the time of signing the informed consent.
  • A female subject is eligible to participate if she is of non-childbearing potential.
  • Body weight > or = 50 kg (110 lbs.) for men and > or = 45 kg (99 lbs.) for women and BMI between 18.5-35.0 kg/m2 inclusive will be allowed.
  • Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form.
  • AST, ALT, and alkaline phosphatase <3.0xULN and bilirubin <1.5xULN (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin <35%).
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  • Average QTcB or QTcF < 450 msec; or QTcB or QTcF < 480 msec in subjects with Bundle Branch Block.
  • Treatment naive chronically infected HCV subjects, defined as infection for >6 months and no prior HCV therapy, with an HCV RNA viral load of greater than 100,000 IU/mL and HCV genotype 1a or 1b. HCV subjects with mixed genotypes are not eligible for the study.
  • Positive for HCV RNA and anti-HCV antibody at the time of screening AND positive for anti-HCV antibody, HCV RNA, or an HCV genotype at least 6 months before screening; OR Positive for HCV RNA and anti-HCV antibody at the time of screening AND liver biopsy within three years prior to screening indicating the absence of cirrhosis.

Who cannot join

  • Unwillingness or inability to follow the procedures outlined in the protocol.
  • Subject is mentally or legally incapacitated.
  • A positive pre-study Hepatitis B surface antigen or HIV antibody within 3 months of screening.
  • A positive pre-study drug/alcohol screen.
  • History of regular alcohol consumption within 6 months of the study.
  • Consumption of red wine, seville oranges, grapefruit or grapefruit juice and/or pummelos, exotic citrus fruits, grapefruit hybrids or fruit juices from 7 days prior to the first dose of study medication.
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  • The subject has participated in a clinical trial and has received an investigational product within the following time period prior to the first dosing day in the current study: 30 days, 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer). Exposure to more than four new investigational products within 12 months prior to the first dosing day.
  • Use of prescription or non-prescription drugs, including vitamins, herbal and dietary supplements (including St John's Wort) within 7 days (or 14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is longer) prior to the first dose of study medication,
  • History of sensitivity to any of the study medications, or components thereof or a history of drug or other allergy that, in the opinion of the investigator or GSK Medical Monitor, contraindicates their participation.
  • Where participation in the study would result in donation of blood or blood products in excess of 500 mL within a 56 day period.
  • History of sensitivity to heparin or heparin-induced thrombocytopenia.
  • Holter monitoring shows one or more of the following: Any symptomatic arrhythmia (except isolated extra systoles); Sustained cardiac arrhythmias (such as atrial fibrillation or flutter, SVT (>10 consecutive beats)); Sustained tachycardia >150 beats per minute; Non-sustained or sustained ventricular tachycardia (defined as >3 consecutive ventricular ectopic beats); Any conduction abnormality (including but not specific to left or right complete bundle branch block, AV block [2nd degree or higher in an awake subject], WPW syndrome, other pre-excitation syndromes); Symptomatic sinus pause or sinus pause >3 seconds - unless patient is straining, vomiting, or having some other type of hypervagal response; 300 or more supraventricular ectopic beats in 24 hours; 250 or more ventricular ectopic beats in 24 hours; Ischemia, diagnosed by a sequence of ECG changes that include flat or downsloping ST-segment depression >0.1 mV, with a gradual onset and offset that lasts for a minimum period of 1 minute. Each episode of ischemia must be separated by a minimum duration of at least 1 minute, during which the ST segment returns back to baseline (1x1x1 rule).

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • GSK Investigational Site

    Anaheim, California, 92801

  • GSK Investigational Site

    Las Vegas, Nevada, 89106

  • GSK Investigational Site

    Lenexa, Kansas, 66219

  • GSK Investigational Site

    Orlando, Florida, 32803

  • GSK Investigational Site

    Willingboro, New Jersey, 08046

Other trials in United States

About this study

Official title: A Randomized, Double Blind, Dose Escalation, Fusion, First Time in Human Study to Assess the Safety, Tolerability, Pharmacokinetics, and Antiviral Activity of Single and Repeat Doses of GSK2485852 in Chronically Infected Hepatitis C Subjects

GSK2485852 is a Hepatitis C NS5B site IV non-nucleoside polymerase inhibitor being developed for the treatment of chronic HCV infection. HBI115040 is the first administration of GSK2485852 in humans to establish the initial safety, tolerability, pharmacokinetic, and antiviral profile. The study design is a fusion of single and repeat dosing cohorts in HCV infected subjects to evaluate the safety, pharmacokinetics, and antiviral activity of GSK2485852.

HBI115040 describes a Phase I, randomized, double-blind, placebo-controlled, dose escalation fusion study to determine the safety, tolerability, pharmacokinetic, and antiviral profile of GSK2485852 in single doses (Part 1), repeat doses (Part 2), and ritonavir co-administration (Part 3) in chronically infected HCV subjects. The study will also explore the effect of a moderate (30%) fat meal on pharmacokinetic endpoints in HCV subjects in Part 1.

Conditions
Hepatitis C
Being tested
GSK2485852 70 mg, GSK2485852 420 mg, placebo, GSK2485852 630 mg, GSK2485852 70 mg + Ritonavir 100mg
Keywords
pharmacokinetics, First administration to human, antiviral activity, safety, hepatitis C
Medical subject headings
Hepatitis C

What participants receive

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

  • GSK2485852 70 mgDrug

    single dose

  • GSK2485852 420 mgDrug

    single dose

  • placeboDrug

    single dose

  • placeboDrug

    Repeat dose, once daily for 3 days

  • GSK2485852 420 mgDrug

    Repeat dose, twice daily for 3 days

  • GSK2485852 420 mgDrug

    Repeat dose, TIDfor 3 days

  • GSK2485852 630 mgDrug

    Repeat dose, twice daily for 3 days

  • GSK2485852 70 mg + Ritonavir 100mgDrug

    single dose, day 1

  • GSK2485852 210 mg + Ritonavir 100mgDrug

    single dose, day 1

  • GSK2485852 210 mg +Ritonavir 100mgDrug

    single dose daily for 3 days

Study groups in NCT01332552
Study groupRoleWhat they receive
Part 1: Single dose escalationExperimentalGSK2485852 planned single doses are placebo, 70 mg, 420 mg, 70 mg with food
Receives: Drug: GSK2485852 70 mg; Drug: GSK2485852 420 mg; Drug: placebo; Drug: GSK2485852 70 mg + Ritonavir 100mg
Part 2: Repeat dose escalationExperimentalGSK2485852 planned repeat doses are placebo, 420mg BID, 420mg TID, 630mg BID
Receives: Drug: placebo; Drug: GSK2485852 420 mg; Drug: GSK2485852 630 mg; Drug: GSK2485852 210 mg + Ritonavir 100mg
Part 3: GSK2485852 + RitonavirExperimentalGSK2485852 single dose 70mg, 210 mg +Ritonavir 100mg x 1 day; GSK2485852 210mg + Ritonavir 100mg single dose x 3 days;
Receives: Drug: GSK2485852 210 mg +Ritonavir 100mg

What is being measured

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

  1. Safety parameters: adverse events; telemetry; absolute values and changes over time of hematology, clinical chemistry, urinalysis, vital signs (blood pressure, heart rate), and electrocardiogram (ECG) parameters

    Measured: up to 7 days

  2. GSK2485852 PK parameters following single dose administration: AUC(0-inf), AUC(0-t), AUC(0-24), Cmax, tmax, C24, t1/2, tlag, and CL/F

    Measured: 24 hours

  3. GSK2485852 PK parameters following repeat dose administration: AUC(0-τ), Cτ, Cmax, tmax, t1/2, and CL/F

    Measured: 72 hours

  4. HCV RNA viral load reduction from baseline

    Measured: 24 to 72 h

  5. HCV RNA change from baseline to nadir

    Measured: up to 72 h

  6. Time course of HCV viral load at baseline, during dosing with GSK2485852, and > or = 14 days after GSK2485852 dosing

    Measured: up to 14 days

Secondary outcomes (4)
  1. GSK2485852 PK parameters: AUC(0-24), Cmax, tmax and tlag following a single dose with and without moderate fat/calorie meal.

    Measured: 24 h

  2. GSK2485852 accumulation ratio (R)

    Measured: 72 h

  3. GSK2485852 time invariance in non-food cohorts

    Measured: 72 hours

  4. GSK2485852 dose proportionality after single or repeat dosing in non-food cohorts

    Measured: up to 72 h

Timeline

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

  1. First posted11 Apr 2011 (estimated)
  2. Study start14 Jan 2011
  3. Primary completion6 Apr 2011
  4. Study completion6 Apr 2011

Why it stopped: Terminated due to unfavorable human pharmacokinetic properties

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01332552
Sponsor's protocol ID
115040
Status last verified
Jul 2017
First submitted
7 Apr 2011
Last updated
7 Jul 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing GSK2485852 70 mg, GSK2485852 420 mg and GSK2485852 630 mg in people with Hepatitis C, run by GlaxoSmithKline at 5 sites 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 12 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: stopped early, as of the sponsor's last update on 7 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites 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 was stopped early (reason given: Terminated due to unfavorable human pharmacokinetic properties). Results are not available in the source record.

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?

Safety parameters: adverse events; telemetry; absolute values and changes over time of hematology, clinical chemistry, urinalysis, vital signs (blood pressure, heart rate), and electrocardiogram (ECG) parameters (time frame: up to 7 days). The study lists 6 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 7 Jul 2017; AzTrials last refreshed its copy on 31 Oct 2026.

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