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Retinal DiseasesPhase 1NCT01551771

GW824575 First Time in Human

A Phase 1 study testing GW824575 in people with Retinal Diseases, run by GlaxoSmithKline at 1 site in United Kingdom.

Terminated

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

Official record
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Trial summary

This study is the first administration of GW824575 in humans. This will be a single centre, masked, placebo-controlled study, to investigate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of GW824575, given as single and repeated oral doses to healthy male subjects. Read more about this study

Who is it for?
Ages 18 to 65 years, men onlyHealthy volunteers can take part
Conditions the study is for
Retinal Diseases
What is being tested?
GW824575
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
16 participants
Where
1 siteUnited Kingdom
Study dates
1 Feb 2012to 12 Apr 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 65 years
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • AST, ALT, alkaline phosphatase and bilirubin less than or equal to 1.5xULN (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin <35%).
  • Healthy as determined by a responsible and experienced physician, based on a medical evaluation including medical history, physical examination, laboratory tests and cardiac monitoring. A subject with a clinical abnormality or laboratory parameters outside the reference range for the population being studied may be included only if the Investigator and the GSK Medical Monitor agree that the finding is unlikely to introduce additional risk factors and will not interfere with the study procedures.
  • For subjects in Parts A or D - Male subjects between 18 and 65 years of age inclusive, at the time of signing the informed consent.
  • For subjects in Part B - Male subjects greater than or equal to 50 years of age, at the time of signing the informed consent..
  • Male subjects with female partners of child-bearing potential must agree to use one of the contraception methods listed in protocol. This criterion must be followed from the time of the first dose of study medication until 4 months post-last dose.
  • Body weight greater than or equal to 55 kg and BMI within the range 18 - 31 kg/m2 (inclusive).
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  • Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form.
  • Average QTc < 450 msec.
  • Normotensive, after having rested quietly in a supine position for at least 15 minutes, with a systolic blood pressure less than or equal to 120 mmHg and diastolic blood pressure less than or equal to 80mmHg and a heart rate less than or equal to 100 beats per minute. Subjects with "pre-hypertension" (systolic blood pressure 121-140 mmHg and diastolic blood pressure 81 to 99mmHg) must be cleared by the medical monitor.
  • Willingness and ability to swallow multiple size 00 capsules as part of study participation.
  • For subjects in Part B only - Best-corrected visual acuity better than 20/80 (Snellen equivalent; 54 or more ETDRS letters) in both eyes.

Who cannot join

  • A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening
  • Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
  • A positive pre-study drug/alcohol screen.
  • A positive test for HIV antibody.
  • Significant infection within 4 weeks prior to the first dosing day.
  • History of regular alcohol consumption within 6 months of the study defined as an average weekly intake of greater than 21 units for males. One unit is equivalent to 8 g of alcohol: a half-pint (approximately 240 ml) of beer, 1 glass (125 ml) of wine or 1 (25 ml) measure of spirits.
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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: 3 months (12 weeks), 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer).
  • Exposure to more than four new chemical entities within 12 months prior to the first dosing day.
  • Unable to refrain from 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 and throughout the study, unless in the opinion of the Investigator and GSK Medical Monitor the medication will not interfere with the study procedures or compromise subject safety.
  • 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.
  • Urinary cotinine levels indicative of smoking or history or regular use of tobacco- or nicotine-containing products within 6 months prior to screening.
  • Any prior intraocular surgery, excluding cataract surgery.
  • Any prior eye surgery within three months to first dose of study medication.
  • Subjects with glaucoma (controlled or uncontrolled).
  • Inability to withhold contact lens wear from the time of the screening ophthalmic assessments until the treatment ophthalmic assessments have been performed (the wearing of glasses is permitted).
  • Within 6 months prior to the Screening Visit, use of medications known to be toxic to the retina, lens or optic nerve (e.g. desferoxamine, chloroquine/hydrochloroquine, chlorpromazine, phenothiazines, tamoxifen, and ethambutol).

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • GSK Investigational Site

    London, NW10 7EW

Other trials in United Kingdom

About this study

Official title: A Single-centre, Masked, Placebo-controlled Four Part Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single and Repeat Doses of the CC-chemokine Receptor 3 (CCR3) Antagonist, GW824575, Coadministered With or Without Food in Healthy Male Subjects

This study is the first administration of GW824575 in humans. This will be a single centre, masked, placebo-controlled study, to investigate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of GW824575, given as single and repeated oral doses to healthy male subjects. The study will be comprised of 4 parts and enroll approximately 40 subjects: Part A will consist of two cohorts of 8 healthy male subjects to assess the safety, tolerability, PK, and PD of ascending single oral doses of GW824575. All available safety, tolerability, and PK data will be monitored prior to each dose escalation. In order to support the possible indication for age-related macular degeneration (AMD), Part B will be one cohort of 12 subjects to examine the safety, tolerability, PK, and PD of a repeated dose of GW824575 over 21 days in healthy male subjects who are greater than or equal to 50 years of age. The total daily dose in this cohort will not exceed the maximum tolerated dose (MTD) from Parts A and D. Subjects in this cohort will undergo ophthalmology assessments before receiving investigational product and after Day 7 of the 21-day in-patient treatment, after steady state has been reached. As part of protocol amendment 2, Part C (Cohort 4) is removed from the protocol. Part D, added under protocol amendment 2, will consist of one cohort of 12 healthy male subjects to assess safety, tolerability, PK, and PD of ascending single doses of GW824575 as well as the effect of food on the PK of GW824575.

Read the detailed description

Part A will consist of two cohorts of healthy male subjects to assess the safety, tolerability, and PK of ascending single oral doses of GW824575. The sponsor will review available safety, tolerability, and PK data and, where available, PD receptor occupancy (from the eosinophil shape change data) data before each dose escalation. Outcome measures in Part A will be assessed and presented through 48 hours post-dose for each of up to 4 single dose escalations per cohort. Part B will be one cohort to examine the safety, tolerability and PK of a repeated dose of GW824575 over 21 days in healthy male subjects who are greater than or equal to 50 years of age. Subjects in this cohort will undergo ophthalmic assessments before receiving investigational product and after Day 7 of the 21-day in-patient treatment, after steady state has been reached. The PD endpoints such as receptor occupancy will be assessed. The dosing regimen (once or twice daily) will be determined by PK data from Part A; however, regardless of dosing regimen, subjects will only receive a single dose in the morning on Days 1 and 21 of the treatment period. Outcome measures in Part B (Cohort 3) will be assessed and presented through 21 days repeat dosing until 48 hours post-dose last dose (i.e., on Day 23). If a safety signal is noted during, or after, the conduct of Cohort 3 of the study; the cohort may be halted or dose down-titrated, and an additional cohort, at a lower dose, may be instituted in Part B as Cohort 5. Dose selection for the additional cohort (Cohort 5) will be informed by the aggregate safety, PK, and PD data available at that time. Part D will consist of one cohort of healthy male subjects. The cohort will 1) explore the effect of a high fat meal on the PK of GW824575 during two treatment periods with approximately 48 hour washout between periods and 2) assess the safety, tolerability, and PK of ascending single oral doses of GW824575 administered in the fasting state or with a standard meal in up to 3 additional treatment periods with at least 6-day washout between periods. The sponsor will review available safety, tolerability, and PK data and, where available, PD RO (from the eosinophil shape change data) data before each dose escalation.

Being tested
GW824575, GW824575 matched-placebo
Keywords
CCR3 antagonist
Medical subject headings
Retinal Diseases

What participants receive

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

  • GW824575Drug

    Investigational treatment - Swedish Orange Coloured, opaque hard gelatin capsule

  • GW824575 matched-placeboDrug

    Placebo

Study groups in NCT01551771
Study groupRoleWhat they receive
GW824575ExperimentalInvestigational treatment - Swedish Orange Coloured, opaque hard gelatin capsule
Receives: Drug: GW824575 matched-placebo
GW824575 matched-placeboPlacebo comparatorPlacebo
Receives: Drug: GW824575

What is being measured

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

  1. Subject tolerability as measured by the number (and frequency) of subjects who experience adverse events after single ascending doses of GW824575

    To assess the safety and tolerability of single doses of GW824575 in healthy male subjects.

    Measured: Parts A and D - Through the expected 48-hour duration of hospital stay.Through the expected 48-hour duration of hospital stay.

  2. Subject tolerability as measured by the number (and frequency) of subjects who experience adverse events after repeat doses of GW824575

    To assess the safety and tolerability of repeat doses of GW824575 in healthy male subjects who are greater than or equal to 50 years of age

    Measured: Part B through the expected 23-day duration of hospital stay.

Secondary outcomes (7)
  1. Pharmacokinetic parameters such as Cmax, AUC, half-life, Tmax of GW824575 after single dosing.

    To characterise the PK profile of single doses of GW824575 in healthy male subjects

    Measured: Parts A and D - predose, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 36, and 48 hours of each hospital stay.

  2. Pharmacokinetic parameters such as Cmax, AUC, half-life, Tmax of GW824575 after repeat dosing.

    To characterise the PK profile of repeat doses of GW824575 in healthy male subjects who are greater than or equal to 50 years of age

    Measured: predose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12, and 24, hours on Day 1 of dosing and on Day 21 of dosing in Part B.

  3. Single dose - eosinophil shape change assay

    To determine the PD effect of single doses of GW824575 in healthy male subjects.

    Measured: 24 to 27 hours post dose.

  4. Repeat dose - eosinophil shape change assay

    To determine the PD effect of repeat doses of GW824575 in healthy male subjects who are greater than 50 years of age

    Measured: Part B at 3, 8 and 24 hours post last dose on Day 21.

  5. Urine, serum and bile sampling for GW824575

    To investigate the metabolism of GW824575 following single and repeat doses in healthy male subjects who are greater than or equal to 50 years of age.

    Measured: Part B (only) at 12-hours after 12 days of repeat dosing.

  6. Changes in safety laboratory values after single ascending doses of GW824575

    To assess the safety of single dose of GW824575 in healthy male subjects

    Measured: Parts A and D - At the conclusion of the expected 48-hour duration of hospital stay.

  7. Changes in safety laboratory values after repeat dosing with GW824575

    To assess the safety of repeat doses of GW824575 in healthy male subjects who are greater than or equal to 50 years of age

    Measured: Part B through the expected 22-day duration of hospital stay.

Timeline

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

  1. First posted13 Mar 2012 (estimated)
  2. Study start1 Feb 2012
  3. Primary completion12 Apr 2012
  4. Study completion12 Apr 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
Diagnosis
Allocation
Randomised
Intervention model
Single group
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01551771
Sponsor's protocol ID
115802
Status last verified
Oct 2017
First submitted
9 Feb 2012
Last updated
19 Oct 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 GW824575 in people with Retinal Diseases, run by GlaxoSmithKline at 1 site in United Kingdom.

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 11 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: stopped early, as of the sponsor's last update on 19 Oct 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 Kingdom. 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. Some participants in this study may receive a placebo. 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. 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?

Subject tolerability as measured by the number (and frequency) of subjects who experience adverse events after single ascending doses of GW824575 (time frame: Parts A and D - Through the expected 48-hour duration of hospital stay.Through the expected 48-hour duration of hospital stay.). The study lists 2 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 19 Oct 2017.

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