Serum Concentration of Adalimumab as a Predictive Factor of Clinical Outcomes in Rheumatoid Arthritis (AFORA)
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Purpose
Adalimumab is a fully human monoclonal antibody to tumor necrosis factor-alpha (TNF-α) approved in rheumatoid arthritis (RA) refractory to disease modifying anti rheumatic drugs (DMARDs) and for the treatment of severe, active and progressive RA in adults not previously treated with methotrexate.
However, almost one third of patients have no response and approximately 15% develop antibodies towards adalimumab (ATA) after a 6 month course of treatment. There is a relationship between adalimumab concentration and clinical response obtained after 6 month of treatment. Furthermore adalimumab concentration measured 3 months after initiation seems to predict the clinical response at 6 months.
There is an important inter individual pharmacokinetic variability of adalimumab. Side effects may occur at the recommended dose and more than 3 months of treatment are generally required to estimate the clinical response.
A therapeutic drug monitoring could help clinicians to early adjust the dose to optimize the response and to avoid dose related side effects. To date there is no definite adalimumab target concentration predictive of the clinical response to allow such a pharmacologic monitoring.
| Condition | Intervention | Phase |
|---|---|---|
|
Rheumatoid Arthritis |
Biological: adalimumab |
Phase 4 |
| Study Type: | Interventional |
| Study Design: | Endpoint Classification: Pharmacokinetics/Dynamics Study Intervention Model: Single Group Assignment Masking: Open Label |
| Official Title: | Serum Concentration of Adalimumab (Humira) as a Predictive Factor of Clinical Outcomes in Rheumatoid Arthritis (AFORA) |
- To characterize the concentration-effect relationship of adalimumab in rheumatoid arthritis [ Time Frame: During the 26 weeks of follow up. ] [ Designated as safety issue: No ]The primary objective is to characterize the concentration-effect relationship of adalimumab in rheumatoid arthritis (RA). To this aim, adalimumab concentration on the one hand and clinical and biological markers of disease activity on the other hand will be measured at baseline, week 4, week 8, week 12 and at week 26. Pharmacodynamic (PD) parameters will be estimated using PK(pharmacokinetic)-PD models in which Emax (maximum effect) and EC50 (concentration at which the effect is 50% of the maximum) will describe adalimumab effect on each markers of response.
- To study the relationship between genetic factors, immunogenicity and response to adalimumab in rheumatoid arthritis [ Time Frame: During the 26 weeks of follow up. ] [ Designated as safety issue: No ]The secondary endpoints consist on the association study between FCGR3A polymorphisms, transcriptomic analysis (at baseline), presence of antibodies toward adalimumab (ATA) on the one hand and estimited individuals pharmacodynamic parameters on the other hand. Measurements will be carried out at baseline, week 4, week 8, week 12 and at week 26.
| Estimated Enrollment: | 100 |
| Study Start Date: | January 2011 |
| Estimated Study Completion Date: | July 2013 |
| Estimated Primary Completion Date: | July 2013 (Final data collection date for primary outcome measure) |
-
Biological: adalimumab
Eligibility| Ages Eligible for Study: | 18 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- RA according to the American College of Rheumatology (ACR) 1987 criteria
- Treatment with Adalimumab has been chosen by the physician / patient
- Treatment given in accordance to the SPC
- Stable Disease modifying anti rheumatic drugs (DMARDs) and glucocorticoids 4 weeks before enrollment and during the study period.
- Signed consent
Exclusion Criteria:
- more than one previous treatment with anti TNF-alpha
- Past history of malignancy, AIDS
- Pregnancy
- Change in DMARDS or glucocorticoid dose 4 weeks before entering the study
- Active or latent tuberculosis, other active infections
- Surgery scheduled during the study period
Contacts and Locations| Contact: Denis MULLEMAN, MD, PhD | +33 2 47 59 17 | mulleman@med.univ-tours.fr |
| Contact: Yoann DESVIGNES | +33 2 47 47 46 32 | yoann.desvignes@med.univ-tours.fr |
| France | |
| CHRU de Brest | Recruiting |
| Brest, France | |
| Contact: Valérie DEVAUCHELLE, MD, PhD | |
| Principal Investigator: Valérie DEVAUCHELLE, MD, PhD | |
| CHR du Mans | Not yet recruiting |
| Le Mans, France | |
| Contact: Emmanuelle DERNIS, MD | |
| Principal Investigator: Emmanuelle DERNIS, MD | |
| CHRU de Nantes | Active, not recruiting |
| Nantes, France | |
| CHR d'Orléans | Active, not recruiting |
| Orléans, France | |
| CHRU de Poitiers | Recruiting |
| Poitiers, France | |
| Contact: Elisabeth SOLAU, MD | |
| Principal Investigator: Elisabeth SOLAU, MD | |
| CHRU de Rennes | Recruiting |
| Rennes, France | |
| Contact: Aleth PERDRIGER, MD, PhD | |
| Principal Investigator: Aleth PERDRIGER, MD, PhD | |
| CHRU de Tours | Recruiting |
| Tours, France | |
| Contact: Denis MULLEMAN, MD, PhD | |
| Principal Investigator: Denis MULLEMAN, MD, PhD | |
| Principal Investigator: | Denis MULLEMAN, MD, PhD | CHRU de Tours |
More Information
No publications provided
| Responsible Party: | Directrice des Affaires Médicales et de la Recherche, CHRU de Tours |
| ClinicalTrials.gov Identifier: | NCT01382160 History of Changes |
| Other Study ID Numbers: | PHRI10-DM/AFORA, 2010-021449-28, A100898-30, 2010-R24 |
| Study First Received: | December 2, 2010 |
| Last Updated: | June 23, 2011 |
| Health Authority: | France: Afssaps - Agence française de sécurité sanitaire des produits de santé (Saint-Denis) |
Keywords provided by University Hospital, Tours:
|
Rheumatoid arthritis adalimumab pharmacokinetic-pharmacodynamic relationship immunogenicity Fc gamma receptors polymorphisms |
Additional relevant MeSH terms:
|
Arthritis Arthritis, Rheumatoid Joint Diseases Musculoskeletal Diseases Rheumatic Diseases Connective Tissue Diseases Autoimmune Diseases |
Immune System Diseases Adalimumab Antirheumatic Agents Therapeutic Uses Pharmacologic Actions Anti-Inflammatory Agents |
ClinicalTrials.gov processed this record on May 19, 2013