E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 12.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10039073 |
E.1.2 | Term | Rheumatoid arthritis |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To investigate the ability of GSK706769 to maintain clinical remission after withdrawal of Enbrel in patients with RA, as determined by DAS28 scores |
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E.2.2 | Secondary objectives of the trial |
1. To investigate the ability of GSK706769 to maintain clinical remission after withdrawal of Enbrel in patients with RA, as determined by the Patient Global Assessment scores and evidence of swollen or tender joints. 2. To investigate the time to relapse following withdrawal of Enbrel. 3. To investigate the safety and tolerability of GSK706769 following repeat dosing in RA subjects for up to 28 days. 4. To investigate the differences in rheumatological assessments, pain, fatigue and physical functioning following repeat dosing with GSK706769 for up to 28 days 5. To investigate the systemic pharmacokinetics (PK) of GSK706769, and its metabolite GSK1996847A, in RA Patients, following twice-daily administration at 100 mg (200 mg total dose) for 28 days; using a population PK approach (as feasible). 6. To measure CCR5 receptor occupancy (RO) in peripheral blood following repeat dosing with GSK706769 for up to 28 days, as feasible |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male or female over 18 years of age, at the time of signing the informed consent. 2. A female subject is eligible to participate if she is of child-bearing potential (with negative serum pregnancy test at screening and negative urine pregnancy test within 24 hours prior to the first dose of investigational product, with confirmation by serum testing within 24 hours after first dose) and agrees to use one of the contraception methods listed in Section 8.1 of the protocol for an appropriate period of time (as determined by the product label or investigator) prior to the start of dosing to sufficiently minimize the risk of pregnancy at that point. Female subjects must agree to use contraception until 4 days post-last dose. 3. Body weight ≥ 50 kg and BMI within the range 19 – 32 kg/m2 (inclusive). 4. The subject has a diagnosis of RA according to the revised 1987 criteria of the American College of Rheumatology (ACR) and has been treated with an anti TNF-alpha agent for < 2 years 5. The subject is taking Enbrel for at least 6 months prior to enrollment 6. The subject is willing to stop taking Enbrel for 56 days 7. The subject is in clinical remission, defined as DAS28 ≤ 2.6 and has been for the preceding 6 months 8. Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form. 9. Average QTcB or QTcF < 450 msec; or QTc < 480 msec in subjects with Bundle Branch Block. 10. AST and ALT < 2xULN; alkaline phosphatase and bilirubin ≤ 1.5xULN (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin <35%). |
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E.4 | Principal exclusion criteria |
1. The subject is using oral prednisolone at doses > 10mg/day. 2. The subject’s NSAID or glucocorticoid dosing regimen has changed during the 4 weeks prior to randomisation. 3. The subject is receiving DMARDs other than Enbrel and methotrexate 4. The subject’s current methotrexate regimen has changed significantly (i.e. likely to impact disease activity during the study period) within the 3 months prior to dosing e.g. changes in dose of greater than 2.5mg. 5. Use of CYP3A4 inhibitors/inducers within 14 days prior to dosing and CYP3A4 substrates with a narrow therapeutic index within 7 days prior to dosing 6. 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). 7. Exposure to more than four new chemical entities within 12 months prior to the first dosing day. 8. Absolute neutrophil count < 1500/μl 9. History of sensitivity to the study medication, 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. 10. A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening 11. Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones) 12. A positive pre-study drug screen, unless the subject is receiving a prescribed medication that could give a positive in the drug screen and prior to the screen being sent the medication has been discussed and pre-approved by the GSK medical monitor. 13. A positive test for HIV antibody. 14. History of regular alcohol consumption within 6 months of the study defined as: An average weekly intake of >21 units for males or >14 units for females. One unit is equivalent to 8 g of alcohol: a half-pint (~240 ml) of beer, 1 glass (125 ml) of wine or 1 (25 ml) measure of spirits. 15. The subject has an acute infection or a history of repeated or chronic infections 16. The subject has significant cardiac, pulmonary, metabolic, renal, hepatic or gastrointestinal conditions that in the opinion of the investigator and/or GSK medical monitor, places the subject at an unacceptable risk as a participant in this trial. 17. Subjects with autoimmune hemolytic anemia or G6PD deficiency 18. Malignancy in the past 2 years, except for adequately treated non-invasive cancers of the skin 19. Where participation in the study would result in donation of blood or blood products in excess of 500 mL within a 56 day period. 20. Lactating females. 21. Unwillingness or inability to follow the procedures outlined in the protocol. 22. Subject is mentally or legally incapacitated. 23. Consumption of grapefruit, grapefruit juice or grapefruit hybrids from 7 days prior to the first dose of study medication to day 28.
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E.5 End points |
E.5.1 | Primary end point(s) |
Number of subjects that maintain remission on active versus placebo at Day 28 with remission defined as: • Change in DAS28 (SJC, TJC, ESR, patient’s global assessment) < 0.6
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 3 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The end of the trial will be the last visit of the last subject undergoing the trial. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 6 |
E.8.9.2 | In all countries concerned by the trial days | 0 |