Combination of Baricitinib and Adalimumab in Rheumatoid Arthritis (CRI-RA)

  • STATUS
    Recruiting
  • End date
    Jul 15, 2025
  • participants needed
    178
  • sponsor
    University Hospital, Bordeaux
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Updated on 15 March 2022
See if I qualify
corticosteroids
remission
methotrexate
rituximab
prednisone
adalimumab
tofacitinib
anakinra
tumor necrosis factor
DMARD
rheumatism
tumour necrosis
abatacept
baricitinib
antirheumatics

Summary

As stated by the European League Against Rheumatism (EULAR) and the Société Française de Rhumatologie (SFR), treatment of patients with rheumatoid arthritis (RA) should target sustained remission or at least low disease activity. However, despite significant advances based on various combinations of conventional synthetic disease-modifying antirheumatic drugs (DMARDs) and biologic DMARDs, RA therapies meet treatment goals only in some patients:

  • 40 to 50% of patients with early RA, treated with methotrexate (MTX) monotherapy as first-line therapy,
  • 20 to 30% of patients treated with a combination of MTX and biologic as second-line therapy.
  • Less than 10% of patients treated with a combination of MTX and another targeted DMARD, such as baricitinib, as third-line therapy.

Therefore, new strategies targeted at achieving a higher percentage of remission are needed, that do not require waiting for multiple failed therapies. Combinations of biologics have shown synergistic improvement of symptoms in murine models of RA relative to the improvement observed with either agent alone. However, in RA patients, only five randomised clinical trials (RCTs) have explored the efficacy and safety of combining tumour necrosis factor (TNF) inhibitor with another biologic (anakinra, abatacept, rituximab or bimekizumab).

Baricitinib is a selective, reversible and competitive inhibitor of Janus kinases (Jaki). This treatment is efficient in a number of therapeutic scenarios in RA and showed a clinical superiority over adalimumab in one RCT (RA-BEAM study in MTX inadequate responders). Of note, baricitinib inhibits many of the pro-inflammatory cytokines involved in the pathogenesis of RA but does not block signalling downstream of TNF. Owing to the interest in combining different mechanisms of action, the investigators plan to assess the efficacy and safety of combination therapy with baricitinib and a TNF inhibitor (adalimumab). The investigators are aware that combining targeted therapies is not recommended due to a potential increase in the frequency of serious adverse events. However, several case series on patients treated with a combination of targeted therapies have been published, suggesting a certain efficacy in patients with refractory RA. The first ones focused on inflammatory bowel diseases and psoriasis, but more recently, combination of tofacitinib (which belongs to the same Jaki family as baricitinib) with various biologics has been reported in a sample of RA patients. No serious adverse effects were reported over a mean of approximately 11 months of therapy. The clinical improvement was mild but noticeable in these refractory RA cases.

Recently, data of interest from the RA-BEAM study have been reported. Patients who switched from adalimumab to baricitinib showed improvements in disease control. Because the switch from adalimumab to baricitinib occurred without a washout period, and because adalimumab has a mean circulating half-life of approximately 14 days, patients would have received several weeks of dual TNF and Jak1/Jak2 inhibition in the course of the change of treatment. The observation of increased efficacy, with no apparent acute safety issues during the weeks when patients were exposed to both adalimumab and baricitinib, is of interest, and supports our strategy to combine the two treatments for patients with refractory RA.

The investigators consider that there is a need for investigation into the addition of adalimumab to baricitinib in patients suffering of refractory RA (inadequate response to TNF inhibitors). The investigators hypothesize that in this population, based on ACR50 score, this combination therapy will decrease disease activity more efficiently than a switch to another targeted DMARD, such as baricitinib.

Description

Intensive combination therapies have revolutionised the management of solid neoplasms, hematologic malignancies, and acquired-immune-deficiency syndrome. These intensive strategies are based on the need to obtain rapid control of disease activity to afford the chance of stable full remission and avoid irreversible complications. The same goal applies to management of RA. Because current therapeutic strategies may fall short of these target goals and fail to improve quality of life in some patients, novel approaches are needed to improve outcomes. RA is a complex disease involving numerous cell types and inflammatory mediators of innate and adaptive immune systems. The investigators are aware that most of combination bDMARD strategies have been associated with little or no incremental benefit in efficacy compared to single-biologic therapy. However, our study will target mechanisms that differ from those in previous studies. Strategies that simultaneously target different pathways involved in the pathogenesis of RA may enhance treatment responses in patients with RA. Of note, baricitinib does not directly block signalling downstream of TNF, even if an indirect effect on TNF production is likely to occur. Targeting multiple inflammatory cytokines in combination may lead to more effective treatment and enhanced clinical responses in patients with RA compared to the current second-line strategies. The different mechanisms of action of baricitinib and adalimumab, should ensure the efficacy of the combination. No concurrent trial evaluating similar strategies is registered at ClinicalTrial.gov.

Details
Condition Rheumatoid Arthritis
Treatment Placebo, Adalimumab, baricitinib treatment
Clinical Study IdentifierNCT04870203
SponsorUniversity Hospital, Bordeaux
Last Modified on15 March 2022

Eligibility

 Yes No Not Sure

Inclusion Criteria

Male or female
Age between 18 and 75 years-old
Adult patient with a diagnosis of RA as defined by the ACR/EULAR 2010 criteria for the classification of RA
Patient who presents an inadequate response to one to four bDMARDs or tsDMARDs for at least 12 weeks prior to study entry at a dose that is considered acceptable to assess clinical response adequately
Patient affected by active RA (DAS28-ESR > 3.2 or sDAI > 11 or cDAI > 10) eligible to receive a bDMARD or tsDMARD according to the French Society of Rheumatology guidelines
Patient treated by prednisone dosage ≤ 10mg per day. The corticosteroids dosage will be decreased to 7,5 mg/day at the beginning of the study (W0)
Person affiliated with or beneficiary of the French social security scheme
Free, informed and written consent signed by the participant and the investigator (on the day of inclusion at the latest and before any examination required by the research project)

Exclusion Criteria

Patient previously treated with baricitinib or adalimumab for RA
Patient affected by another form of inflammatory arthritis with the exception of secondary Sjögren syndrome
Patient who presents contraindications to the study treatments
Patient who is currently receiving glucocorticosteroids at doses >10 mg of prednisone per day (or equivalent) or has been receiving an unstable dosing regimen of corticosteroids within 4 weeks of study entry
Patient who is currently receiving more than 1 concomitant csDMARD (MTX, leflunomide, hydroxychloroquine or sulfasalazine) at the time of study entry
Patient who is currently receiving or has received csDMARDs (eg, gold salts, cyclosporine, azathioprine, or any other immunosuppressives) other than MTX (up to 25 mg/week), leflunomide (up to 20 mg/day), hydroxychloroquine (up to 400 mg/day), or sulfasalazine (up to 3000 mg/day) within 4 weeks prior to study entry
Doses of hydroxychloroquine or sulfasalazine should be stable for at least 4 weeks prior to study entry; if either has been recently discontinued, the patient must not have taken any dose within 4 weeks prior to study entry
Immunosuppression related to organ transplantation is not permitted
Patient who has received any parenteral corticosteroid administered by intramuscular or intravenous injection within 4 weeks prior to study entry, or is anticipated to require parenteral injection of corticosteroids during the study
Patient who had 3 or more joints injected with intraarticular corticosteroids or hyaluronic acid within 4 weeks prior to study entry. Joints injected with intraarticular corticosteroids or hyaluronic acid within 2 weeks prior to study entry or within 6 weeks prior to planned randomization cannot be counted in the TJC and SJC for entry or enrollment purposes
Patient with haemoglobin less than 80 g/L, absolute lymphocyte count lower than 0.5×109/L, absolute neutrophil count less than 1×109/L, or platelet count less than 100×109/L; clearance creatinine less than 60 mL/min; total bilirubin more than 1.5 times the upper limit of normal (ULN) at screening, aspartate aminotransferase, or alanine amino-transferase more than 2 times the upper limit of normal (ULN) at screening
Patient with co-administration with OAT3 inhibitors (such as probenecid)
Patient who has a history or presence of cardiovascular, respiratory, hepatic, gastrointestinal, endocrine, hematological, neurological, or neuropsychiatric disorders or any other serious and/or unstable illness that, in the opinion of the investigator, could constitute a risk when taking investigational product or could interfere with the interpretation of data
Patient with an history of Moderate to severe heart failure (NYHA classes III/IV)
Patient with an history of Major Adverse Cardiovascular Events (non-fatal myocardial infarction or non-fatal stroke)
Patient who has a history of Venous Thromboembolic Event (VTE) (DVT/PE) within 12 weeks prior to randomization or have a history of recurrent (>1) VTE (DVT/PE). Prior DVT with PE where events overlapped in time (i.e., with PE considered resulting from DVT) is not considered recurrent DVT/PE for the purpose of this criterion
Patient who has been exposed to a live vaccine within 12 weeks prior to planned randomization or are expected to need/receive a live vaccine during the course of the study (with the exception of herpes zoster vaccination). Investigators should review the vaccination status of their patients and follow the local guidelines for adult vaccination with nonlive vaccines intended to prevent infectious disease prior to entering patients into the study
Patient with an active cancer
Patient with malignancy or history of malignancy in the past 5 years, with the exception of adequately treated or excised non-metastatic basal-cell or squamous-cell cancer of the skin or cervical carcinoma in situ
Patient who has a current or recent (<30 days prior to study entry) clinically serious viral, bacterial, fungal, or parasitic infection
Patient who is immunocompromised and, in the opinion of the investigator, is at an unacceptable risk for participating in the study
Patient with a history of active hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV)
Patient who had household contact with a person with active tuberculosis (TB) and did not receive appropriate and documented prophylaxis for TB
Patient who has evidence of active TB or has previously had evidence of active TB and did not receive appropriate and documented treatment
Patient who has evidence of latent TB (as documented by a positive Purified Protein Derivative (PPD), no clinical symptoms consistent with active TB, and a normal chest x-ray at screening) unless patient completes at least 3 weeks of appropriate treatment prior to study entry and agrees to complete the remainder of treatment while in the trial
Patient who had any major surgery within 8 weeks prior to study entry or will require major surgery during the study that, in the opinion of the investigator, would pose an unacceptable risk to the patient
Pregnant or breastfeeding woman, or woman who refuses to use an effective contraception during the study course
Patient governed by articles L 1121-5 to L 1121-8 (persons deprived of their liberty by a judicial or administrative decision, minors, persons of legal age who are the object of a legal protection measure or unable to express their consent)
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