Last updated: 11/03/2018 00:48:22
SB-659032 Platelet Aggregation Study
GSK study ID
104623
Clinicaltrials.gov ID
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Study complete
Study complete
Trial overview
Official title: A Double Blind Study to Evaluate Effects of Repeat Doses of SB-659032 on Platelet Aggregation in Healthy Volunteers
Trial description: This study is designed to assess whether inhibition of plasma Lp-PLA2 activity impacts platelet function as assessed by ex vivo platelet aggregation tests and in vivo plasma biomarkers.
Primary purpose:
Treatment
Trial design:
Crossover Assignment
Masking:
Double (Participant, Care Provider)
Allocation:
Randomized
Primary outcomes:
Platelet aggregation
Timeframe: 14 days
Biomarkers of platelet aggregation
Timeframe: 14 days
Secondary outcomes:
Lp-PLA2 inhibition
Timeframe: 14 days
Clinical safety data
Timeframe: 14 days
Mean concentrations of SB-659032 and its major metabolite, SB-664601
Timeframe: 14 days
Frequency and intensity of odor-related adverse events
Timeframe: 14 days
Interventions:
Enrollment:
26
Primary completion date:
Not applicable
Observational study model:
Not applicable
Time perspective:
Not applicable
Clinical publications:
Not applicable
Medical condition
Atherosclerosis
Product
rilapladib
Collaborators
Not applicable
Study date(s)
July 2005 to December 2005
Type
Interventional
Phase
1
Participation criteria
Sex
Male
Age
18 - 55 years
Accepts healthy volunteers
Yes
- Healthy adult males between 18 and 55 years of age, inclusive
- Body weight greater than 50 kg (110 pounds) and body mass index (BMI) between 19 and 32 where: BMI = weight in kg/(height in meters)2
- Any clinically relevant abnormality identified on the screening medical assessment, laboratory examination or ECG
- Platelet count below or above the reference range
Inclusion and exclusion criteria
Inclusion criteria:
- Healthy adult males between 18 and 55 years of age, inclusive
- Body weight greater than 50 kg (110 pounds) and body mass index (BMI) between 19 and 32 where: BMI = weight in kg/(height in meters)2
- A signed and dated written informed consent prior to admission to the study
- The subject is able to understand and comply with protocol requirements, instructions and protocol-stated restrictions.
Exclusion criteria:
- Any clinically relevant abnormality identified on the screening medical assessment, laboratory examination or ECG
- Platelet count below or above the reference range
- History of hypercoagulable state or history of thrombosis
- History of platelet dysfunction
- A known history of Gilbert's Syndrome
- History of asthma, anaphylaxis or anaphalactoid reactions, severe allergic responses
- A history of alcohol, substance or drug abuse within the last year or a positive alcohol breath test at screening or predose in each period. Abuse of alcohol is defined as an average weekly intake of greater than or equal to 21 units (male) or an average daily intake of greater than or equal to 3 units (male). 1 unit is equivalent to a 285mL glass of full strength beer or 425 mL schooner of light beer or 1 (30 mL) measure of spirits or 1 glass (100 mL) of wine
- Positive urine drug screen at screening or predose in each period
- History of use of tobacco or nicotine containing products within 6 months of screening or a positive urine cotinine at screening or exhaled carbon monoxide test at predose in each period
- Positive HIV, Hepatitis B or Hepatitis C at screening
- Use of aspirin, aspirin-containing products, non-steroidal anti-inflammatory agents or any antiplatelet medication within 14 days prior to Day -1 of the study (a list of these drugs will be reviewed with the subject at screening and provided to them to take home)
- Use of prescription (including hormone replacement therapy) or non-prescription drugs and vitamins within 7 days or 5 half-lives (whichever is longer) prior to Day -1 of the study. An exception is acetaminophen which is allowed at doses of ≤ 2g/day
- Use of dietary/herbal supplements including (but not limited to) St. John's wort, kava, ephedra (ma huang), gingko biloba, DHEA, yohimbe, saw palmetto, ginseng and red yeast rice within 14 days prior to Day -1 of the study
- Treatment with an investigational drug within 30 days or 5 half-lives (whichever is longer) prior to dosing
- Consumption of grapefruit or grapefruit juice within 7 days prior to Day -1 of the study
- A history of cholecystectomy or biliary tract disease including a history of liver disease with elevated liver function tests of known or unknown etiology
- An unwillingness to abstain from sexual intercourse with pregnant or lactating women or an unwillingness to use a condom and another form of contraception (e.g., IUD, birth control pills taken by female partner, diaphragm with spermicide) if engaging in sexual intercourse with a woman who could become pregnant until discharge from the study
- Donation of blood in excess of 500 mL within 56 days or donation of blood in excess of 250 mL within 7 days prior to dosing
- Full ADP- and/or collagen-induced aggregation (greater than and equal to 40%) at all three concentrations of one or both agonists, as assessed within 6 months prior to first dose and at Day –1 of each period
- No ADP- or collagen-induced aggregation (less than 40%) at the highest concentration of either agonist, as assessed within 6 months prior to first dose and at Day –1 of each period
Trial location(s)
Location
GSK Investigational Site
Randwick, Sydney, New South Wales, Australia, 2031
Status
Study Complete
Study documents
No study documents available.
Results overview
Study Results yet to be posted
Recruitment status
Study complete
Actual primary completion date
Not applicable
Actual study completion date
2005-17-12
Plain language summaries
Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.
Additional information about the trial
Additional information
Not applicable
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