Skip to main content
  • Research article
  • Open access
  • Published:

Long-term effectiveness and safety of infliximab and golimumab in ankylosing spondylitis patients from a Canadian prospective observational registry



The objectives of this study were to describe the profile of ankylosing spondylitis (AS) patients treated with either infliximab (IFX) or subcutaneous golimumab (GLM) treatment in Canadian routine care setting along with assessing long-term effectiveness and safety.


AS patients who were eligible for treatment with IFX or subcutaneous GLM as per their respective Canadian product monographs were enrolled into the BioTRAC registry from 2005 to 2017. The study visits occurred at baseline and every 6 months thereafter. Effectiveness was assessed by changes in clinical outcomes and acute phase reactants. Safety was evaluated by assessing the incidence of adverse events (AEs) and drug survival rates.


A total of 389 IFX- and 421 GLM-treated patients were enrolled. A significant decrease in disease duration at baseline was observed in the IFX cohort, from a median of 8.0 in 2005–2008 to 1.0 years in 2009–2015 (p < 0.001). A reduction in baseline BASFI score (p = 0.011) and proportion of patients in ASDAS very high disease activity (p = 0.004) was also observed over time. Meanwhile, in the GLM cohort, most disease parameters remained similar from 2010 to 2017.

Treatment with both agents significantly improved all disease parameters over time with similar efficacy between the two agents. The incidence of AEs and SAEs were 136 and 131 events/100 PYs and 10.5 and 8.45 events/100 PYs for IFX- and GLM-treated patients, respectively.


Both IFX and GLM treatment in AS significantly reduced disease activity in most outcome measures in a similar fashion and were well tolerated in Canadian routine care.

Trial registration


Peer Review reports


Ankylosing spondylitis (AS) is a common form of spondyloarthritis (SpA) [1]. It is further classified under the subgroup axial spondyloarthritis (AxSpA), due to the predominant involvement of the spine and/or sacroiliac joints whether it be radiographic or non-radiographic AxSpA. Along with inflammatory back pain, SpA is also characterized by inflammation of tendon/ligament sites of insertion into bone (enthesitis), development of peripheral arthritis in about a third of patients [1, 2] and eventually progression to the fusion of the axial skeleton (ankylosis) in selected patients [3].

Extra-articular manifestations such as ophthalmologic, dermatological and gastrointestinal involvement are also common in AS patients; the prevalence of uveitis, psoriasis and inflammatory bowel disease being 26, 9 and 7%, respectively [4]. Uveitis is the most common extra-articular manifestation, and generally involves the anterior chamber and is unilateral [5].

AS is more common in men than in women [6], and affects a young population starting in adolescence or early adulthood. The overall disease prevalence is estimated to be between 0.1 and 1.4% [7] and varies with the prevalence of the HLA-B27 gene in a given population [8]. In Canada’s largest province (Ontario), the prevalence of AS in 2010 was estimated to be 213/100,000 [9].

Substantial health and economic burdens are associated with AS. Studies investigating quality of life have demonstrated that AS patients report substandard health conditions, especially when considering physical function/mobility and bodily pain [10, 11]. Additionally, significant costs, including out of pocket expenses and missed work, are associated with increasing disease activity and loss of function [12,13,14]. There is presently no cure for AS, therefore the goal of treatment is to improve the health-related quality of life by reducing pain, improving physical function, and delaying structural damage [15].

Current treatment recommendations include: nonpharmacological intervention (exercise, physical therapy, and lifestyle changes), non-steroidal anti-inflammatory drugs (NSAID; first-line pharmacological treatment) and biologic agents (anti-TNF and anti-IL-17 agents) [16]. While traditional therapy was intended to alleviate pain symptoms, the emergence of biologic agents results in the ability to slow disease progression [17,18,19]. TNFi demonstrated efficacy in AS, specifically concerning disease activity and functionality, where significant improvements in Bath AS Disease Activity and Functionality Index (BASDAI and BASFI) scores have been observed [20,21,22,23]. MRI studies have also shown that anti-TNF treatment can reduce acute inflammation in the spine and sacroiliac joints [24, 25].

The safety profile and effectiveness of anti-TNFs in routine clinical care in AS is not well-established, especially with GLM, and may vary considerably regionally due to differences in patient characteristics and disease management. Therefore, post-approval studies of anti-TNFs are useful for providing real world insights, including any rare and serious adverse events and should be conducted at least at a national level. The current study uses data retrieved from the Biologic Treatment Registry Across Canada (BioTRAC) to describe the profile of Canadian AS patients treated with infliximab (IFX) or golimumab (GLM) in routine clinical practice and to assess the effectiveness and safety of these agents in a real-world setting. An interim analysis of IFX-treated AS patient has been previously reported [26].


Study design

The Biologic Treatment Registry Across Canada (BioTRAC; NCT00741793) was a prospective, multi-centre (140 sites), registry that collected real-world clinical, laboratory, safety, and patient-reported data between 2002 and 2018 among AS, psoriatic arthritis, and rheumatoid arthritis patients treated with IFX, GLM or ustekinumab during routine institutional and private care in Canada. Prior to enrolment, patients were required to provide a written informed consent to participate. Ethics approval was obtained from a central Research Ethics Board (IRB Service, Ontario, Canada) for private practices, and from respective Research Ethics Boards for institutional sites. The study was conducted in accordance with the Declaration of Helsinki. The historical development of the registry and an interim analysis of IFX-treated patients have been described elsewhere [26, 27]. Data from this registry were recently presented at the Canadian Rheumatology Association [28], PANLAR [29] and EULAR [30] 2019 conferences.

Patient population

For the purposes of this analysis, patients with AS who were eligible for treatment with IFX or subcutaneous GLM as per the Canadian Product Monograph were included. The diagnosis of AS was made by the treating rheumatologists as per standard of care practices. Adult AS patients, either bio-naive (2005–2006) or with ≤1 prior biologic agent exposure (2006–2018), initiating anti-TNF therapy as per their treating physician and the Canadian product monograph, were enrolled and followed for up to 12 years with a study visit at baseline and every 6 months thereafter (a 2-month visit was included from 2005 to 2006 but is excluded from this report).

Patients treated with IFX were enrolled from 2005 until 2015 and followed until 2017 or until treatment termination. GLM-treated patients were enrolled from 2010 to 2017 and they were followed until 2018 or until treatment termination. Following the regulatory approval of GLM for the treatment of non-radiographic axial spondyloarthritis, a protocol amendment was introduced in 2014 to include such patients into the registry. However, since only 9 GLM-treated patients (7.6%) did not have erosions on sacroiliac joints by X-ray, these patients were included in the full analysis set. No specific analyses were otherwise done on these nine GLM-treated patients with non-radiographic axial spondyloarthritis. Therefore, the term AS will be used throughout this manuscript. All analyses included the full analysis set comprising patients receiving treatment without major eligibility violations.

Data collection

The following clinical, laboratory and patient-reported outcomes (PROs) were collected as per routine care: AS Disease Activity Score (ASDAS), BASDAI, BASFI [31], health assessment questionnaire (HAQ), patient global assessment (PtGA), physician global assessment (MDGA), back pain scores, enthesitis (as assessed by examining supraspinatus, medial epicondyle humerus, lateral epicondyle humerus, greater trochanter, quadriceps-to-patella, patellar-tibia, Achilles and Plantar Fascia sites), dactylitis (scored as present or absent), and acute phase reactants (CRP, ESR). Safety was assessed with the incidence of treatment-emergent adverse events (AEs).

Statistical analysis

The current study includes data from two distinct statistical analysis plans. The first analysis plan covered the IFX cohort and was filed in May 2018 while the second covered the remainder of cohort and included patients treated with GLM. Since comparison of the two treatments was not within the scope of the registry and the investigators had already been exposed to the IFX data, a decision was made not to do any direct statistical analyses comparing the IFX and GLM cohorts. Rather, data from the two cohorts are simply contrasted as it provides an interesting vision of how each drug was used.

All outcomes (presented as observed) were assessed descriptively using the median and/or mean and standard deviation (SD), 95% confidence intervals (CI) of the mean for continuous variables, and frequency distributions for categorical variables. In order to assess potential differences over calendar time in the baseline profile of AS patients selected in routine care for treatment with IFX and GLM, variations in patient demographics and baseline characteristics across enrolment periods (2005–2008, 2009–2012, 2013–2015 and 2016–2017) were assessed using the Kruskal-Wallis test for continuous variables and the Chi-square for categorical variables. There was no imputation for missing data.

Kaplan-Meier (KM) survival analysis was used to assess the time to IFX and GLM discontinuation. AEs were coded using the Medical Dictionary for Regulatory Activities (MedDRA version 20.0), and the proportion of patients who experienced an AE along with incidence rates were summarized by preferred term (PT). Statistical analyses were conducted with SPSS 24.0 (SPSS Inc., Chicago, IL) and SAS 9.4 (SAS Institute, Cary, NC, USA).


Patient demographics and baseline characteristics are presented in Table 1. Among the 389 IFX- and 421 GLM-treated patients, proportion of males were 62.7 and 59.1%, mean age was 45.6 and 45.7 years and mean disease duration was 8.6 and 6.0 years, respectively. Most patients were bio-naive (> 82%).

Table 1 Patient Demographics and Baseline Characteristics

Patients treated with IFX received a mean (SD) dose of 4.78 (1.38) mg/kg, over a median (min-max) of 17 (1–93) infusions representing a total exposure of 1251 years. All GLM-treated patients started at the 50 mg dose monthly and received a median (min-max) of 14 (1–85) injections representing a total exposure of 675 years. Additionally, among GLM treated patients, two received at least one 100 mg dose, 4 patients (1%) received 50 mg injections at shorter than q28 days intervals, while 50 patients (11.9%) received 50 mg injections at q28–32 days intervals throughout study.

As shown in Fig. 1, a significant decrease in baseline disease duration was observed in the IFX cohort from a median of 8.0 to 3.5 and 1.0 years in 2005–2008, 2009–2012 and 2013–2015, respectively (p < 0.001). A reduction in baseline mean BASFI score (6.3 vs. 5.9 vs 5.1; p = 0.011), MDGA score (6.8 vs 6.1 vs 6.2, p < 0.001), morning stiffness (78.4 vs 66.7 vs 46.9 min, p < 0.001), ESR (26.9 vs 20.2 vs 19.6 mm/hr., p < 0.003), CRP (18.8 vs 19.0 vs 13.8 mg/L, p = 0.045) and the proportion of patients in ASDAS very high disease activity (48.4, 43.8, 30.3%; p = 0.004) was also observed over the same time periods. As for GLM-treated patients, most disease parameters including median disease duration (1.6 years), mean baseline BASFI (5.3) and the proportion of patients in ASDAS very high disease activity (48%) remained similar from 2010 to 2017.

Fig. 1
figure 1

Evolution of baseline characteristics over time

Treatment with both IFX and GLM significantly improved BASDAI, BASFI, ASDAS, HAQ, CRP and ESR scores over time (p < 0.001) from baseline up to 120 and 84 months, respectively, with similar efficacy between agents (Fig. 2). The proportion of GLM-treated patients with enthesitis decreased from 135/340 (39.7%) to 51/234 (21.8%; p = 0.002) at 12 months and 16/124 (12.9%; p < 0.001) at 24 months. Similarly, the mean (SD) SPARCC enthesitis score decreased from 1.6 (2.93) at baseline to 0.6 (1.54) at 12 months (p < 0.001) and 0.3 (1.46) at 24 months (p < 0.001). The proportion of GLM-treated patients with dactylitis decreased from 31/235 (13.2%) to 6/203 (3.0%; p = 0.0209) at 12 months and 1/114 (0.9%; p = 0.005) at 24 months. The proportion of patients who discontinued treatment was 65.8% over a mean 3.2 years of exposure in the IFX cohort and 56.8% over 1.6 years in the GLM cohort (Fig. 3). The median estimated time to discontinuation was 33.6 and 22.1 months for IFX and GLM, respectively. In IFX-treated patients, the most common reasons for discontinuations were other (24.6%), adverse events (19.1%), lost to follow-up (14.1%), loss of response (14.1%) and lack of response (8.2%). For GLM-treated patients, the most common reasons for discontinuation were lack of response (33.9%), loss of response (18.8%), other (12.6%), lost to follow-up (11.7%) and adverse event (7.1%).

Fig. 2
figure 2

Effect of treatment with IFX and GLM on disease parameters over time. P-value vs baseline

Fig. 3
figure 3

Kaplan-Meier drug survival analysis

AEs were reported for 67.9 and 70.5% (136 and 131 events/100 PYs) and SAEs for 15.4 and 8.1% (10.5 and 8.45 events/100 PYs) covering 1251 and 675 years of exposure for IFX- and GLM-treated patients, respectively (Tables 2 and 3). The most frequently occurring AEs (> 7% of patient in either group) were drug ineffective, nasopharyngitis, upper respiratory tract infections, arthralgia and back pain. Discontinuation due to a SAE occurred in 17 (4.4%) and 7 (1.7%) IFX- and GLM-treated patients, respectively. The most commonly occurring SAEs in IFX-treated patients were osteoarthritis and therapeutic response decreased. The most commonly occurring SAE in GLM-treated patients was drug ineffective which occurred in 4 patients. The most common serious infection was pneumonia which occurred in two IFX-treated patients. There were 3 cases of opportunistic infections (three patients with candidiasis and one with latent TB) in IFX-treated patients, while one was observed in GLM-treated patients (onychomycosis). The incidence rate of malignancies was 0.89 and 1.93 per 100 pt.yrs. in IFX- and GLM-treated patients, respectively. There were three pregnancies in IFX-treated patients and seven in six GLM-treated patients (with one spontaneous abortion in a GLM-treated patient).

Table 2 Adverse events (SOC with PT terms occurring in ≥2% of patients with at least one agent)
Table 3 Serious Adverse Events (SOC term) occurring in ≥0.5% of patients per agent

Two deaths occurred in IFX-treated patients (myocardial infarction; drowning) and two among GLM-treated patients (patient #1: oropharyngeal cancer; patient #2: Neutropenia, staphylococcal/pseudomonas infections, septic shock).


Although there are a substantial number of prospective registries evaluating the effect of anti-TNFs therapy in inflammatory arthritis, the majority of them follow only rheumatoid arthritis patients and collect predominantly safety and/or drug retention data [32]. Indeed, only a few multi-centre registries collect real-world prospective data on anti-TNF agents in AS patients and these include a number of national rheumatology registries from Scandinavian countries [33], GO-NICE from Germany [34, 35], ATTRA from the Czech Republic [36], the LORHEN registry in Northern Italy [37], the Korean registry OSKAR [38], the US-based CORRONA registry [39], BIOBADABRASIL [40] and, finally, the DEvenir des Spondylarthropathies Indifférenciées Récentes (DESIR) cohort in France [41]. Among them, BioTRAC is one of the oldest and longest-running AS drug registries. It has provided long-term effectiveness and safety data on patients treated with both older (IFX) and newer (GLM) anti-TNF agents, as well as insights on the evolution and treatment of the Canadian AS patient over the past two decades.

One advantage of long-term observational registries is that it permits the assessment of changes in treatment strategies over time, such as the reduction in baseline disease duration and disease activity between 2005 and 2009. This evolution in baseline characteristics likely results from changes in patient management involving the presence of enthesitis and dactylitis were respectively reported in 135/340 (39.7%) and 31/235 (13.2%) of GLM-treated patients, increased awareness of the disease and importance of earlier diagnosis and initiation of biologic therapy [26, 42]. Despite these improvements between 2005 and 2010, the BASDAI and ASDAS scores of Canadian AS patients from 2010 to 2016 remain high (range 3.5–6.3 and 2.7–3.8, respectively) [33] and the PtGA did not improve.

Among patients who were maintained on IFX and GLM, both anti-TNFs were equally effective in decreasing disease activity and improving function as the therapeutic response curves were superimposable despite differences in baseline disease activity indexes and retention. However, since the data presented is from “observed” patients, it could also be reflective of the disease state at which a therapy is deemed to be effective. In this and other registries, IFX-treated AS patients had longer treatment persistence compared to both GLM-treated AS patients and RA patients in general [37, 43]. The longer time to discontinuation observed in IFX-treated AS patients could be driven by low availability of alternative biologic therapies in earlier time periods since the reasons for discontinuation were more commonly “other”, “lost to follow-up” or “adverse event”. Indeed, most IFX-treated patients were enrolled between 2005 and 2010, while most GLM-treated patients were enrolled from 2013 to 2017 (Fig. 1).

The incidence of AEs and SAEs was also found to be similar between IFX and GLM, although there were some notable differences. Patients treated with IFX had a greater incidence of chest discomfort, chest pain, fatigue, headaches, pain, pyrexia, pain in extremities and pruritus compared to GLM-treated patients, all of which could be due to acute and delayed infusion reactions [44]. Conversely, GLM-treated patients had a greater incidence of “lack of response” or “loss of response” AEs compared to IFX-treated patients. Although this was likely driven by changes in the “End Of Participation” questionnaire, and the addition of lack/loss of response as an AE of special interest in a protocol amendment in 2014, which disproportionately impacted the GLM cohort as most patients were enrolled from 2013 onwards.

The incidence of serious infections for IFX- and GLM- treated AS patients was estimated between 1.29–2.22 events/100 pt.yrs., respectively. The only data available on the risk of serious infections in AS patients under anti-TNF therapy comes from randomized-controlled studies and meta-analyses, where the relative risk of serious infections was similar with controls [45]. The rates observed for AS patients in this report were similar to those found in RCTs [21, 23] and in rheumatoid arthritis and psoriatic arthritis patients in BioTRAC [29, 30]. The incidence of uveitis in IFX- and GLM-treated patients were similar to that reported previously in IFX-treated AS patient and lower than the 15.6/100 pt.yrs. incidence rate observed in placebo-treated patients [46].

The limitations of this registry are the absence of a control group treated with NSAIDs or non-biologic DMARDs, the inclusion of predominantly bio-naïve patients, the lack of radiographic data and the inherent biases and underreporting that are common within non-interventional, observational studies. Also, data completeness was quite variable over enrolment period due to protocol amendments, changes in standard operating procedures between the three study sponsors and improvements in adverse event reporting. Indeed, the IFX cohort had a substantial amount of missing data with respect HLA-B27 status, and assessment of extra-articular manifestations (including enthesitis and dactylitis), which limited the assessment of these variables.

One key strength of BioTRAC is that it included an extensive evaluation of clinical disease parameters and patient reported outcomes. Additionally, due to its long-term duration, BioTRAC offered a unique opportunity to evaluate the real-world effectiveness and safety of two anti-TNF agents in a community Canadian setting, while assessing regional variations due to differences in patient profiles, practice patterns and local reimbursement policies impacting access to care over 12 years. This makes the data more generalizable to the overall AS population than registration studies that tend to follow a more defined patient population using a rigid protocol over a shorter time period.


In conclusion, differences in baseline characteristics over time suggest improvement in early diagnosis of AS and earlier access to biologic therapies. Both IFX and GLM treatment significantly reduced disease activity and improved functionality in a similar fashion, and were well tolerated in patients with AS.

Availability of data and materials

Janssen has an agreement with the Yale Open Data Access (YODA) Project to serve as the independent review panel for evaluation of requests for CSRs and participant level data from investigators and physicians for scientific research that will advance medical knowledge and public health. For more information on this process or to make a request, please go to



Adverse Event


Ankylosing spondylitis


Ankylosing Spondylitis Disease Activity Score


Axial spondyloarthritis


Bath Ankylosing Spondylitis Disease Activity


Bath Ankylosing Spondylitis Functional Index


Biologic DMARD


Biologic Treatment Registry Across Canada


Confidence interval


C-Reactive protein


Disease-modifying antirheumatic drug


Erythrocyte sedimentation rate






Health Assessment Questionnaire Disease Index


Physician global assessment of disease activity


Preferred term


Patient global assessment of disease activity


Randomized-controlled trial


Serious adverse event


Standard deviation


System organ classes




Tumor necrosis factor inhibitor


  1. Rudwaleit M, van der Heijde D, Landewe R, Akkoc N, Brandt J, Chou CT, et al. The assessment of SpondyloArthritis international society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general. Ann Rheum Dis. 2011;70(1):25–31.

    CAS  PubMed  Google Scholar 

  2. Gorman JD, Sack KE, Davis JC Jr. Treatment of ankylosing spondylitis by inhibition of tumor necrosis factor alpha. N Engl J Med. 2002;346(18):1349–56.

    CAS  PubMed  Google Scholar 

  3. Haroon N. Ankylosis in ankylosing spondylitis: current concepts. Clin Rheumatol. 2015;34(6):1003–7.

    PubMed  Google Scholar 

  4. Stolwijk C, van Tubergen A, Castillo-Ortiz JD, Boonen A. Prevalence of extra-articular manifestations in patients with ankylosing spondylitis: a systematic review and meta-analysis. Ann Rheum Dis. 2015;74(1):65–73.

    PubMed  Google Scholar 

  5. Rosenbaum JT. Uveitis in spondyloarthritis including psoriatic arthritis, ankylosing spondylitis, and inflammatory bowel disease. Clin Rheumatol. 2015;34(6):999–1002.

    PubMed  Google Scholar 

  6. Braun J, Sieper J. Ankylosing spondylitis. Lancet. 2007;369(9570):1379–90.

    PubMed  Google Scholar 

  7. Akkoc N. Are spondyloarthropathies as common as rheumatoid arthritis worldwide? A review. Curr Rheumatol Rep. 2008;10(5):371–8.

    PubMed  Google Scholar 

  8. Braun J, Bollow M, Remlinger G, Eggens U, Rudwaleit M, Distler A, et al. Prevalence of spondylarthropathies in HLA-B27 positive and negative blood donors. Arthritis Rheum. 1998;41(1):58–67.

    CAS  PubMed  Google Scholar 

  9. Haroon NN, Paterson JM, Li P, Haroon N. Increasing proportion of female patients with ankylosing spondylitis: a population-based study of trends in the incidence and prevalence of AS. BMJ Open. 2014;4(12):e006634.

    PubMed  PubMed Central  Google Scholar 

  10. Salaffi F, Carotti M, Gasparini S, Intorcia M, Grassi W. The health-related quality of life in rheumatoid arthritis, ankylosing spondylitis, and psoriatic arthritis: a comparison with a selected sample of healthy people. Health Qual Life Outcomes. 2009;7:25.

    PubMed  PubMed Central  Google Scholar 

  11. Dagfinrud H, Mengshoel AM, Hagen KB, Loge JH, Kvien TK. Health status of patients with ankylosing spondylitis: a comparison with the general population. Ann Rheum Dis. 2004;63(12):1605–10.

    CAS  PubMed  PubMed Central  Google Scholar 

  12. Boonen A, Severens JL. Ankylosing spondylitis: what is the cost to society, and can it be reduced? Best Pract Res Clin Rheumatol. 2002;16(4):691–705.

    CAS  PubMed  Google Scholar 

  13. Boonen A, der HD v, Landewe R, Guillemin F, Rutten-van MM, Dougados M, et al. Direct costs of ankylosing spondylitis and its determinants: an analysis among three European countries. Ann Rheum Dis. 2003;62(8):732–40.

    CAS  PubMed  PubMed Central  Google Scholar 

  14. Kobelt G, Andlin-Sobocki P, Maksymowych WP. Costs and quality of life of patients with ankylosing spondylitis in Canada. J Rheumatol. 2006;33(2):289–95.

    PubMed  Google Scholar 

  15. Moon KH, Kim YT. Medical treatment of ankylosing spondylitis. Hip Pelvis. 2014;26(3):129–35.

    PubMed  PubMed Central  Google Scholar 

  16. Rohekar S, Chan J, Tse SM, Haroon N, Chandran V, Bessette L, et al. 2014 update of the Canadian rheumatology association/Spondyloarthritis research consortium of Canada treatment recommendations for the management of Spondyloarthritis. Part II: specific management recommendations. J Rheumatol. 2015;42(4):665–81.

    PubMed  Google Scholar 

  17. Molnar C, Scherer A, Baraliakos X, de Hooge M, Micheroli R, Exer P, et al. TNF blockers inhibit spinal radiographic progression in ankylosing spondylitis by reducing disease activity: results from the Swiss clinical quality management cohort. Ann Rheum Dis. 2018;77(1):63–9.

    CAS  PubMed  Google Scholar 

  18. Haroon N, Inman RD, Learch TJ, Weisman MH, Lee M, Rahbar MH, et al. The impact of tumor necrosis factor alpha inhibitors on radiographic progression in ankylosing spondylitis. Arthritis Rheum. 2013;65(10):2645–54.

    CAS  PubMed  PubMed Central  Google Scholar 

  19. Clegg DO. Treatment of ankylosing spondylitis. J Rheumatol Suppl. 2006;78:24–31.

    CAS  PubMed  Google Scholar 

  20. Davis JC Jr, Van Der Heijde D, Braun J, Dougados M, Cush J, Clegg DO, et al. Recombinant human tumor necrosis factor receptor (etanercept) for treating ankylosing spondylitis: a randomized, controlled trial. Arthritis Rheum. 2003;48(11):3230–6.

    CAS  PubMed  Google Scholar 

  21. van der Heijde D, Dijkmans B, Geusens P, Sieper J, DeWoody K, Williamson P, et al. Efficacy and safety of infliximab in patients with ankylosing spondylitis: results of a randomized, placebo-controlled trial (ASSERT). Arthritis Rheum. 2005;52(2):582–91.

    PubMed  Google Scholar 

  22. van der Heijde D, Kivitz A, Schiff MH, Sieper J, Dijkmans BA, Braun J, et al. Efficacy and safety of adalimumab in patients with ankylosing spondylitis: results of a multicenter, randomized, double-blind, placebo-controlled trial. Arthritis Rheum. 2006;54(7):2136–46.

    PubMed  Google Scholar 

  23. Inman RD, Davis JC Jr, Heijde D, Diekman L, Sieper J, Kim SI, et al. Efficacy and safety of golimumab in patients with ankylosing spondylitis: results of a randomized, double-blind, placebo-controlled, phase III trial. Arthritis Rheum. 2008;58(11):3402–12.

    CAS  PubMed  Google Scholar 

  24. Ritchlin C, Maksymowych W. MRI outcomes in AS patients after two years of etanercept therapy. Curr Rheumatol Rep. 2006;8(4):253–4.

    PubMed  Google Scholar 

  25. Braun J, Baraliakos X, Hermann KG, van der Heijde D, Inman RD, Deodhar AA, et al. Golimumab reduces spinal inflammation in ankylosing spondylitis: MRI results of the randomised, placebo- controlled GO-RAISE study. Ann Rheum Dis. 2012;71(6):878–84.

    CAS  PubMed  Google Scholar 

  26. Rahman P, Choquette D, Bensen WG, Khraishi M, Chow A, Zummer M, et al. Biologic treatment registry across Canada (BioTRAC): a multicentre, prospective, observational study of patients treated with infliximab for ankylosing spondylitis. BMJ Open. 2016;6(4):e009661.

    PubMed  PubMed Central  Google Scholar 

  27. Thorne C, Bensen WG, Choquette D, Chow A, Khraishi M, Atkins CJ, et al. Effectiveness and safety of infliximab in rheumatoid arthritis: analysis from a Canadian multicenter prospective observational registry. Arthritis Care Res. 2014;66(8):1142–51.

    CAS  Google Scholar 

  28. Silverman ED. Canadian rheumatology association meeting Fairmont the Queen Elizabeth Montreal, Quebec, Canada February - March 2, 2019. J Rheumatol. 2019.

  29. Abstracts, 21st PANLAR Meeting. J Clin Rheumatol. 2019;25:S1–S96.

  30. Annual European Congress of Rheumatology EULAR 2019. Ann Rheum Dis. 2019;78(Supplement 2):1–2270.

  31. Mease P. Psoriatic arthritis and spondyloarthritis assessment and management update. Curr Opin Rheumatol. 2013;25(3):287–96.

    CAS  PubMed  Google Scholar 

  32. Ruderman EM. Overview of safety of non-biologic and biologic DMARDs. Rheumatology. 2012;51(Suppl 6):vi37–43.

    PubMed  Google Scholar 

  33. Glintborg B, Lindstrom U, Aaltonen K, Kristianslund EK, Gudbjornsson B, Chatzidionysiou K, et al. Biological treatment in ankylosing spondylitis in the Nordic countries during 2010-2016: a collaboration between five biological registries. Scand J Rheumatol. 2018;47(6):465–74.

    CAS  PubMed  Google Scholar 

  34. Kruger K, Burmester GR, Wassenberg S, Bohl-Buhler M, Thomas MH. Patient-reported outcomes with golimumab in patients with rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis: non-interventional study GO-NICE in Germany. Rheumatol Int. 2019;39(1):131–40.

    PubMed  Google Scholar 

  35. Kruger K, Burmester GR, Wassenberg S, Thomas MH. Golimumab as the first-, second-, or at least third-line biologic agent in patients with rheumatoid arthritis, psoriatic arthritis, or Ankylosing spondylitis: post hoc analysis of a noninterventional study in Germany. Rheumatol Ther. 2020.

  36. Pavelka K, Forejtova S, Stolfa J, Chroust K, Buresova L, Mann H, et al. Anti-TNF therapy of ankylosing spondylitis in clinical practice. Results from the Czech national registry ATTRA. Clin Exp Rheumatol. 2009;27(6):958–63.

    CAS  PubMed  Google Scholar 

  37. Manara M, Caporali R, Favalli EG, Grosso V, Atzeni F, Sarzi Puttini P, et al. Two-year retention rate of golimumab in rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis: data from the LORHEN registry. Clin Exp Rheumatol. 2017;35(5):804–9.

    PubMed  Google Scholar 

  38. Kim TJ, Shin JH, Kim S, Sung IH, Lee S, Song Y, et al. Radiographic progression in patients with ankylosing spondylitis according to tumor necrosis factor blocker exposure: observation study of Korean Spondyloarthropathy registry (OSKAR) data. Joint, Bone, Spine. 2016;83(5):569–72.

    CAS  PubMed  Google Scholar 

  39. Mease PJ, van der Heijde D, Karki C, Liu M, Park Y, Greenberg JD. Tumor necrosis factor inhibitor discontinuation in patients with Ankylosing spondylitis: an observational study from the US-based Corrona registry. Rheumatol Ther. 2018;5(2):537–50.

    PubMed  PubMed Central  Google Scholar 

  40. Fafa BP, Louzada-Junior P, Titton DC, Zandonade E, Ranza R, Laurindo I, et al. Drug survival and causes of discontinuation of the first anti-TNF in ankylosing spondylitis compared with rheumatoid arthritis: analysis from BIOBADABRASIL. Clin Rheumatol. 2015;34(5):921–7.

    PubMed  Google Scholar 

  41. Molto A, Granger B, Wendling D, Breban M, Dougados M, Gossec L. Brief report: nonsteroidal Antiinflammatory drug-sparing effect of tumor necrosis factor inhibitors in early axial Spondyloarthritis: results from the DESIR cohort. Arthritis Rheumatol. 2015;67(9):2363–8.

    CAS  PubMed  Google Scholar 

  42. Sorensen J, Hetland ML, all departments of rheumatology in D. Diagnostic delay in patients with rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis: results from the Danish nationwide DANBIO registry. Ann Rheum Dis. 2015;74(3):e12.

    PubMed  Google Scholar 

  43. Kruger K, Burmester GR, Wassenberg S, Bohl-Buhler M, Thomas MH. Effectiveness and safety of golimumab in patients with rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis under real-life clinical conditions: non-interventional GO-NICE study in Germany. BMJ Open. 2018;8(6):e021082.

    PubMed  PubMed Central  Google Scholar 

  44. Choquette D, Faraawi R, Chow A, Rodrigues J, Bensen WJ, Nantel F. Incidence and management of infusion reactions to infliximab in a prospective real-world community registry. J Rheumatol. 2015;42(7):1105–11.

    CAS  PubMed  Google Scholar 

  45. Xu Z, Xu P, Fan W, Yang G, Wang J, Cheng Q, et al. Risk of infection in patients with spondyloarthritis and ankylosing spondylitis receiving antitumor necrosis factor therapy: a meta-analysis of randomized controlled trials. Exp Ther Med. 2017;14(4):3491–500.

    CAS  PubMed  PubMed Central  Google Scholar 

  46. Braun J, Baraliakos X, Listing J, Sieper J. Decreased incidence of anterior uveitis in patients with ankylosing spondylitis treated with the anti-tumor necrosis factor agents infliximab and etanercept. Arthritis Rheum. 2005;52(8):2447–51.

    CAS  PubMed  Google Scholar 

Download references


This study is dedicated to the memory of William G. Bensen MD, who was BioTRAC’s primary investigator from its inception in 2002 until his premature passing on March 15th, 2017. The authors are indebted to the BioTRAC investigators, nurses, study coordinators and to the individuals who were involved in its design, management, data generation and dissemination: Vincent Letourneau, John Leombruno, Hayssam Khalil, Chad Mitchell, Sophie-Elise Michaud, Frank Hack, Nader Khabboul, Heidi Imhoff, Susan Otawa, May Shawi, Kathy Tkaczyk, Karina Maslova, Brendan Osborne, Odalis Asin-Milan, Meagan Rachich, John S. Sampalis, Eliofotisti Psaradellis, Nadia Longo, Julie Vaillancourt, Angela Karellis, Saliha Boumaza, Patricia Bandeira, Karen Landers, Clara Fehrmann, Julie Dinniwell, Debra Mitchell and Sandra Sitar. We also wish to thank all the people living with ankylosing spondylitis who shared their time in the study to help us better understand the impact of their disease.


This study was financed in its entirety and managed by Schering-Plough (from 2002 to 2010; study design and data collection), Merck (from 2010 to 2012; study amendment, design and data collection) and Janssen Inc. (from 2012-present; study amendment, design, data collection, analysis, interpretation and writing).

Author information

Authors and Affiliations



PR, MS, DH, LB and MT were involved in recruitment. ER was involved in biostatistical analysis. ER, AJL and FN were involved in the study design and FN wrote the manuscript. All authors were involved in data analysis, reviewed and edited the manuscript and approved the final version.

Corresponding author

Correspondence to Francois Nantel.

Ethics declarations

Ethics approval and consent to participate

Prior to enrollment, patients were required to provide written informed consent to participate. Ethics approval was obtained from a central Research Ethics Board (IRB Service, Ontario, Canada now under the name of Advarra) for private practices (registered with OHRP and FDA as follows: ON IRB registration #IRB00000776, QC IRB registration #IRB00005290, and from respective Research Ethics Boards for institutional sites (Sunnybrook Health Sciences Centre REB, Winnipeg Clinical Ethics Committee, Mount Sinai Hospital REB, University of BC BCCA REB, CHUS Centre de Recherche, HREA, HREBA (Health Research Ethics Board of Alberta), Horizon Health Network REB, Hopital Maisonneuve Rosemont. The study was conducted in accordance with the Declaration of Helsinki.

Consent for publication

Not applicable.

Competing interests

Proton Rahman has received consulting fees for Abbott, AbbVie, Amgen, BMS, Celgene, Janssen, Novartis, Pfizer and Roche; and received research grant from Janssen. Michael Starr received consultant fees from Janssen, AbbVie, Novartis, Sanofi, Pfizer, BMS and Lilly. Derek Haaland received grant/research support, sponsored study funding and speaker fees from Janssen. Louis Bessette received speaker fees from Amgen, BMS, Janssen, Roche, UCB, AbbVie, Pfizer, Merck, Celgene, Lilly and Novartis; consultant fees from Amgen, BMS, Janssen, Roche, UCB, AbbVie, Pfizer, Celgene, Lilly and Novartis and research grants from Amgen, BMS, Janssen, Roche, UCB, AbbVie, Pfizer, Merck, Celgene, Sanofi, Lilly and Novartis. Michelle Teo received research support and consulting fees from Janssen. Allen Lehman and Francois Nantel are employees of Janssen Inc. and are JNJ stockholders.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated in a credit line to the data.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Rahman, P., Starr, M., Haaland, D. et al. Long-term effectiveness and safety of infliximab and golimumab in ankylosing spondylitis patients from a Canadian prospective observational registry. BMC Rheumatol 4, 56 (2020).

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: