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ObesityPhase 1FTIHNCT00857883

A First-Time-In-Human Study in Healthy Subjects

A Phase 1 study of Obesity, run by GlaxoSmithKline at 1 site in United Kingdom.

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

This is a first-time-in-human study. The overall purpose of the study is to assess whether the drug is safe and well tolerated after single, increasing doses. The blood levels of the drug after different doses will be measured and the effect of the drug on pleasurable eating behaviour will be assessed. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Obesity
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
56 participants
Where
1 siteUnited Kingdom
Study dates
17 Nov 2008to 1 Aug 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 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Part A and Part B: Healthy male or female subject as determined by a responsible physician, based on a medical evaluation including history, physical examination, vital signs, laboratory tests and cardiac monitoring. Male subjects must agree to use one of the contraception methods listed in Section 8 from dosing until 84 days after the last dosing session.
  • Female subjects must be of non-childbearing potential including pre-menopausal women with documented (medical report verification) hysterectomy, tubal ligation, or postmenopausal defined as 12 months of spontaneous amenorrhea or 6 months of spontaneous amenorrhea with serum FSH levels > 40 mIU/mL or 6 weeks postsurgical bilateral oophorectomy with or without hysterectomy.
  • Part C: Only healthy male subjects will be enrolled (females not included due to the potential influence of the menstrual cycle on eating behaviour). Male subjects must agree to use one of the contraception methods listed in Section 8 from dosing until 84 days after the last dosing session.
  • Between 18 and 50 years of age, inclusive, at the time of signing and dating the informed consent form.
  • Body weight > 45 kg and BMI within the range 20 - 30 kg/m2 (inclusive) for Part A and B and a BMI within the range 25 - 35 kg/m2 (inclusive) for Part C.
  • Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form.

Who cannot join

  • As a result of the medical interview, physical examination, or screening investigations, the Investigator considers the subject unfit for the study
  • The subject has a positive pre-study drug/alcohol screen. A minimum list of drugs that will be screened for include amphetamines, barbiturates, cocaine, opiates, cannabinoids and benzodiazepines.
  • A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening.
  • A positive test for HIV antibody.
  • A history of uncorrected thyroid dysfunction or an abnormal thyroid function test assessed by TSH at screening
  • History of regular alcohol consumption within 6 months of the study defined as an average weekly intake of greater than 21 units or an average daily intake of greater than 3 units (males), or defined as an average weekly intake of greater than 14 units or an average daily intake of greater than 2 units (females). One unit is equivalent to 8g of alcohol, a half-pint (~240 mL) of beer or 1 (25 ml) measure of spirits or 1 glass (125 ml) of wine.
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  • Urinary cotinine levels indicative of smoking or history or regular use of tobacco- or nicotine-containing products within 6 months prior to screening.
  • Has a history of any gastrointestinal or hepatic conditions that could affect absorption of the investigational product.
  • Has QTc at screening > 450 msec. Note that if the initial QTc value is prolonged, the ECG should be repeated two more times (with 5 minutes between ECG readings) and the average of the 3 QTc values used to determine eligibility.
  • Has clinically significant rhythm abnormalities identified during 24-hour screening Holter assessment.
  • Systolic BP outside the range 85 to 160 mmHg, diastolic BP outside the range 45 to 100 mmHg, and/or heart rate outside the range 40 to 110 bpm.
  • Self-administered Beck Depression Inventory II scale total score greater than nine. Suicide question score greater than zero.
  • The subject has participated in a clinical trial and has received an investigational product within the following time period prior to the dosing day in the current study: 90 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 chemical entities 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 14 days or 5 half-lives (whichever is longer) prior to the dose of study medication, 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 3 months before or after the study.
  • Unwilling to abstain from:
  • Consumption of caffeine- or xanthine containing products for 24 hours prior to dosing until the post-dose assessment at each treatment level.
  • Use of illicit drugs
  • Alcohol for 48 hours prior to dosing until final post-dose assessment at each treatment level
  • Consumption of red wine, seville oranges, grapefruit or grapefruit juice from 7 days prior to the dose of study medication until collection of the final pharmacokinetic blood sample.
  • Vegans and milk intolerance as reported by the subject (Part C only)
  • Unwillingness or inability to follow the procedures outlined in the protocol

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • GSK Investigational Site

    Cambridge, Cambridgeshire, CB2 0QQ

Other trials in United Kingdom

About this study

Official title: A First-Time-In-Human, Three-Part, Placebo-Controlled, Dose Escalation Study to Assess the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GSK1521498 in Healthy Subjects

This is a first-time-in-human study. The overall purpose of the study is to assess whether the drug is safe and well tolerated after single, increasing doses. The blood levels of the drug after different doses will be measured and the effect of the drug on pleasurable eating behaviour will be assessed.

Read the detailed description

The human body naturally produces substances known as opioids and the pleasurable (or hedonic) response to eating highly sugary or fatty foods is increased by opioids. The drug to be tested in this study attaches to specific binding sites in the brain, known as mu-opioid receptors. This may stop the natural effect of opioids and therefore reduce the pleasurable response to food. We predict that this in turn may help patients with obesity to lose weight more effectively. The study is divided into three parts:

Part A: This part of the study will start with a very low dose of study drug, which will then be gradually increased in subesquent doses. This is known as dose-rising and is the way to assess safety and tolerability (any side effects that make taking the drug unpleasant). Effects will be compared to those seen when a placebo (a "dummy" drug) is taken. Up to 4 groups of 6-9 healthy male or female volunteers will be enrolled in this part of the study.

Part B: A dose selected from Part A that was well tolerated will be used to check if there is a difference in the blood levels of the study drug when taken without food in liquid form, without food as a capsule, or with a high fat meal as a capsule. One group of 12 healthy male or female volunteers will be enrolled in this part of the study.

Part C: A well tolerated dose selected from Parts A \& B will be used to test whether the drug has an effect on preferences for sugary and high fat food, when compared to placebo. Up to 32 healthy overweight male volunteers will be enrolled in this part of the study.

Conditions
Obesity
Being tested
GSK1521498 or placebo
Keywords
Obesity, Food Effect, Pharmacokinetics, First-Time-In-Humans, Pharmacodynamics, Healthy Volunteers
Medical subject headings
Obesity

What participants receive

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

  • GSK1521498 or placeboDrug

    GSK1521498 is a mu-opioid receptor inverse agonist

Study groups in NCT00857883
Study groupRoleWhat they receive
Part APlacebo comparatorPart A: This part of the study will start with a very low dose of study drug, which will then be gradually increased in subsequent doses. This is known as dose-rising and is the way to assess safety and tolerability (i.e. possible presence of any side effects that make taking the drug unpleasant) of increasing doses of the study drug. Effects will be compared to those seen when a placebo is taken. Up to 4 groups of 6-9 healthy male or female volunteers will be enrolled.
Receives: Drug: GSK1521498 or placebo
Part BActive comparatorPart B: A dose selected from Part A that was well tolerated will be used to check if there is a difference in the pharmacokinetics (blood levels) of the study drug when taken without food in liquid form, or as a capsule, or as a capsule together with a high fat meal to assess the effect of food. One group of 12 healthy male or female volunteers will be enrolled.
Receives: Drug: GSK1521498 or placebo
Part CPlacebo comparatorPart C: A well tolerated dose selected from Parts A \& B will be used to test whether the drug has an effect on individual preferences for sugary and high fat food, when compared to placebo. Up to 32 healthy overweight male volunteers will be enrolled.
Receives: Drug: GSK1521498 or placebo

What is being measured

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

  1. Safety: adverse events, changes in clinical chemistry, haematology, urine parameters, blood pressure, heart rate, ECG, Bond & Lader visual Analog Scale, Profile of Mood States

    Measured: 19 weeks

  2. Tolerability: adverse events, changes in clinical chemistry, haematology, urine parameters, blood pressure, heart rate, ECG, Bond & Lader visual Analog Scale, Profile of Mood States

    Measured: 19 weeks

  3. Pharmacokinetic parameters

    Measured: Predose, 0.5, 1, 2, 4, 6, 8, 12, 24, 48 and 72 hours post dose administrations

Secondary outcomes (2)
  1. Bioavailability of liquid form of drug and capsule and effect of food on the capsule

    Measured: Approx 4 weeks

  2. Pharmacodynamics - response to sweet and high fat foods before and after drug administration

    Measured: Approx 10 weeks

Timeline

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

  1. First posted9 Mar 2009 (estimated)
  2. Study start17 Nov 2008
  3. Primary completion1 Aug 2009
  4. Study completion1 Aug 2009

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
Double blind
Who is masked
Participant, Investigator
Enrolment
56 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00857883
Sponsor's protocol ID
111314
Acronym
FTIH
Status last verified
Jun 2017
First submitted
24 Feb 2009
Last updated
26 Jun 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 of Obesity, 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 6 inclusion and 24 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 26 Jun 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 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?

Safety: adverse events, changes in clinical chemistry, haematology, urine parameters, blood pressure, heart rate, ECG, Bond & Lader visual Analog Scale, Profile of Mood States (time frame: 19 weeks). The study lists 3 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 26 Jun 2017.

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