E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated | |
E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 17.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10039073 |
E.1.2 | Term | Rheumatoid arthritis |
E.1.2 | System Organ Class | 10028395 - Musculoskeletal and connective tissue disorders |
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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 |
The study primary objective is to provide a better understanding of the molecular and cellular pathways involved in abatacept action in overweight and obese RA patients, by showing its effects at the fat tissue level (as well as at the circulating bloodstream levels) on cells, genes, and molecules known to play a role in producing inflammation. In particular, we want to investigate whether overweight and obesity could be associated to a specific adipose tissue and immune system cells gene expression (IL-6, TNF-alpha, BAFF, BAFF-R, PEDF, Chemerin, Sirtuin1, arginase1 and CD11c) and whether their pre-treatment expression could be influenced by abatacept after 6 months of treatment. |
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E.2.2 | Secondary objectives of the trial |
– To assess the percentage of overweight (BMI 25-30 Kg/m2) and obese (BMI >30 Kg/m2) RA patients that reach DAS28 remission after 6 months of abatacept treatment.
– To assess whether there is any relationship between changes of the inflammatory milieu at the fat tissue level and clinical outcomes after abatacept treatment.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Signed written Informed Consent
- RA patients with disease duration <12 months, in at least a moderately active disease state (DAS28 >3.2) despite MTX at the maximum tolerated doses (10-25 mg/week) and low doses of prednisone (<5 mg daily), stable since at least three months before enrolment (if necessary)
- Age: 18-70 years
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E.4 | Principal exclusion criteria |
Hypersensitivity to the active substance or to any of the excipients
- Severe and uncontrolled infections such as sepsis and opportunistic infections
- Patients who are currently included in any interventional clinical trial in RA
- RA patients in therapy with other biologics
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E.5 End points |
E.5.1 | Primary end point(s) |
Changes from baseline in specific adipose tissue and immune system cells gene expression (IL-6, TNF-alpha, BAFF, BAFF-R, PEDF, Chemerin, Sirtuin1, arginase1 and CD11c) after 6 months of treatment. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Percentage of overweight and obese RA patients in DAS28 remission at 6 months.
- Correlation between clinical response to treatment and changes at the fat tissue and circulating bloodstream levels after abatacept
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
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 | Yes |
E.6.13.1 | Other scope of the trial description |
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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) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
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 | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |