Axial SpondyloarthritisPhase 2MicroSpANCT06451588
Fecal Microbiota Transplantation in Axial Spondyloarthritis
A Phase 2 study testing FMT in people with Axial Spondyloarthritis and Ankylosing Spondylitis, run by University Hospital of North Norway at 1 site in Norway.
Trial summary
Although biologic therapy have revolutionized the treatment of Spondyloarthrtitis (SpA), many patients do not experience complete relief of SpA related complaints. It has been established that patients with SpA have an altered composition of microorganisms (microbiota) in the gut compared to healthy controls, and that… Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Axial Spondyloarthritis, Ankylosing Spondylitis, Dysbiosis
- What is being tested?
- FMT
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 99 participants
- Where
- 1 siteNorway
- Study dates
- 1 Jun 2024to Nov 2027
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Axial Spondyloarthritis according to the ASAS classification criteria
- Active disease defined as ASDAS ≥2.1 with elevated CRP ≥3 OR active inflammation on MRI within the last 3 months
- Onset of axial SpA within last 10 years
- Unsatisfactory relief of NSAIDs
- On stable immunomodulatory treatment (TNFi, IL17i or JAKi) the last 3 months OR without immunomodulatory treatment last 3 months
Who cannot join
- Planned dose adjustment or change in immunomodulatory treatment the next 90 days
- Disease or disorder with life expectancy of ≤5 years
- Severe immune deficiency (acquired, congenital og du to medication)
- Previous treatment with FMT
- Regular use of opioids with the exception of codeine and tramadol
- Any specific diagnosis that could explain or contribute to the patients back pain (e.g. tumor, fracture, infection or degenerative disease)
Show all 20Show fewer
- Inflammatory spinal disease other than axSpA
- Severe psychiatric disorder, alcohol- or drug abuse
- Active inflammatory bowel disease
- Microscopic colitis, diverticulitis or ileus
- Active psoriasis
- Fibromyalgia
- Abdominal surgery excluding appendectomy, cholecystectomy, hysterectomy, caesarian section, sapling-ooforectomy and hernia surgery
- Malignant disease excluding basalioma and melanoma stage 1
- Conditions with expected necessary treatment with antibiotics during the study period, e.g. periodontitis end ischemic digital ulcers
- Treatment with antibiotics 12 weeks prior to study entry
- Pregnancy, lactation or planned pregnancy within the next 3 months
- Contraindications for rectal catheter insertion
- Planned rehabilitation program the next 90 days
- Limited ability to comply with protocol requirements, including biobank participation
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Peter Johnsen, MD PhD contact
Norway1 site, 1 recruiting
- Recruiting
University Hospital North Norway
Tromsø, 9038
Gunnstein Bakland, MD PhD, +4795860791, gunnstein.bakland@unn.no
About this study
Official title: Donor Versus Autologous Fecal Microbiota Transplantation for Axial Spondyloarthritis: a Double Blind, Placebo-Controlled, Randomized Trial
Although biologic therapy have revolutionized the treatment of Spondyloarthrtitis (SpA), many patients do not experience complete relief of SpA related complaints.
It has been established that patients with SpA have an altered composition of microorganisms (microbiota) in the gut compared to healthy controls, and that this correlates to disease activity and respons to therapy.
Read more
The goal of this randomized double-blind study is to evaluate the efficacy of fecal microbiota transplantation (FMT) in patients with axial SpA with a suboptimal effect of biologic therapy.
The main questions it aims to answer are:
- Can FMT reduce disease activity in axial SpA?
- Can FMT alleviate pain and reduce fatigue in axial SpA?
- Is the composition of microorganisms restored to normal in patients with SpA after a treatment with FMT?
Participants will receive a single treatment in the form of an enema with either donor FMT or placebo at baseline. The primary endpoint will be evaluated after 90 days, but efficacy and safety will be monitored from baseline until 365 days.
Read the detailed description
Axial Spondyloarthritis (axSpA) is a chronic inflammatory disease affecting the sacroiliac joints (SIJ) and the spine.
The approach to treatment of axSpA is a combination of patient education, with a focus on exercise and lifestyle, and a medical treatment. Non-steroidal anti-inflammatory drugs (NSAIDs) are the first-line medical treatment, providing symptom relief for a large portion of the patients. For patients with inadequate response, or intolerance, to NSAIDs, biological (TNFi and IL17i) or targeted synthetic (JAKi) disease modifying drugs (b/ts-DMARDs) are considered a second-line treatment option and provide excellent efficacy for many patients. However, a substantial portion of the patients experience active disease despite this second-line therapy.
The cause of the disease is multifactorial, and both genetic and environmental factors contribute in the pathogenesis. Patients with axSpA have a higher prevalence of inflammatory bowel disease (IBD) than the background population, i.e. Crohn's disease and ulcerative colitis. However, inflammation in the gut is also demonstrated in 50-70% of patients without symptoms of IBD, and this inflammation is believed to be of importance in the development of the disease.
The human gut microbiota is the collection of microbes in the intestines. The composition of the microbiota is the result of many factors and have evolved over time to form a mutually beneficial relationship to both humans and microorganisms. Normally there is a balance and a stability in this composition, but in many conditions an imbalance, termed dysbiosis, has been demonstrated. This is also the case in axSpA, and the extent of this dysbiosis also relates to disease activity and to response to therapy.
Fecal microbiota transplantation (FMT) is a method used to alter the microbiota composition by transferring microbes from a healthy individual to a recipient. In several conditions this has both proven the ability to alter the microbiota and to provide symptom relief , e.g. clostridium difficile infections, ulcerative colitis and irritable bowel syndrome.
In the Microspa study, we aim to evaluate whether fecal microbiota transplantation (FMT) can induce clinical remission and symptom relief in patients with axial spondyloarthritis who have shown an inadequate response to biologic therapy.
Microspa 2 is a parallel trial that retains the overall design of the original study, with adjustments made to the eligibility criteria and primary and secondary endpoints. All other components-including outcome measures, sample size, randomization strategy, and statistical analysis plan-remain unchanged.
In Microspa 2, eligible participants include patients who are biologic-naïve or who have previously used biologic therapy but discontinued treatment. Patients currently receiving biologic therapy are excluded. The primary endpoint is the proportion of patients in the donor FMT group compared to the autologous FMT group who initiate immunomodulatory treatment within 90 days following the intervention. An additional secondary endpoint is the proportion of patients initiating immunomodulatory treatment within 365 days post-intervention.
- Conditions
- Axial Spondyloarthritis, Ankylosing Spondylitis, Dysbiosis, Spondyloarthritis, Spondylitis, Arthritis
- Being tested
- FMT, Placebo
- Keywords
- Axial Spondyloarthritis, Microbiome, Fecal Microbiota Transplantation, Microbiota, FMT, RCT
- Medical subject headings
- Axial Spondyloarthritis, Spondylitis, Ankylosing, Dysbiosis, Spondylarthritis, Spondylitis, Arthritis, Musculoskeletal Diseases, Spinal Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
FMTDrug
Active FMT
PlaceboDrug
The placebo treatment will be prepared based on the patients' fecal samples (autologous).
| Study group | Role | What they receive |
|---|---|---|
| Donor A FMT | Experimental | Active treatment contain 60g of feces from a single healthy, screened donor. The feces is combined with glycerol and saline to a total volume of 440 ml in an enema bag. Each participant will only receive a single treatment at baseline. Receives: Drug: FMT |
| Donor B FMT | Experimental | Active treatment contain 60g of feces from a single healthy, screened donor. The feces is combined with glycerol and saline to a total volume of 440 ml in an enema bag. Each participant will only receive a single treatment at baseline. Receives: Drug: FMT |
| Donor C FMT | Experimental | Active treatment contain 60g of feces from a single healthy, screened donor. The feces is combined with glycerol and saline to a total volume of 440 ml in an enema bag. Each participant will only receive a single treatment at baseline. Receives: Drug: FMT |
| Placebo/autologous FMT | Placebo comparator | Placebo treatment will be processed identically to active treatment, but with paritcipants own stool. The patients in the placebo group will consequently receive an enema with 60g of their own feces combined with glycerol and saline as a single treatment at baseline. Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Minimal Clinically Important Improvement
Proportion of patients that meet the criteria of Minimal Clinically Important Improvement in the donor FMT (dFMT) versus the autologous FMT (aFMT) group at day 90 after treatment (FMT - Fecal Microbiota Transplantation). Minimal Clinically Important Improvement is defined by a decrease of ≥1,1 in ASDAS-CRP (Ankylosing Spondylitis Disease Activity Score).
Measured: 90 days
Secondary outcomes (18)
Adverse events
The proportion of patients experiencing any adverse events from baseline util day 90 and day 365
Measured: Day 0-90 and day 91-365
Assessment in Spondyloarthritis International Society (ASAS)20
Improvement of at least 20% in 3 out of four domains without worsening of 20% or more in the remaining domain. Change in the dFMT vs aFMT group from baseline
Measured: baseline, day 30, day 60 and day 90
Bath Ankylosing Spondylitis Disease Activity Index (BASDAI, 0-10)
Higher score indicates more active disease. Change in the dFMT vs aFMT group from baseline
Measured: baseline, day 30, day 60 and day 90
Bath Ankylosing Spondylitis Funtional Index (BASFI, 0-10)
Higher score indicating more severe disease impact. Change in the dFMT vs aFMT group from baseline
Measured: baseline, day 30, day 60 and day 90
Patient global assessment of disease (PGA, 0-10)
Patient's evaluation of disease impact. Higher score indicating worse disease. Change in the dFMT vs aFMT group from baseline
Measured: baseline, day 30, day 60 and day 90
VAS spinal pain (Visual Analogue Scale, 0-10)
Patient's evaluation of pain on av visual analogue scale. Higher score indicating worse pain.
Change in the dFMT vs aFMT group from baseline
Measured: baseline, day 30, day 60 and day 90
Modified Fatigue Impact Scale (0-84)
Higher score indicating greater impact of fatigue on daily life. Change in the dFMT vs aFMT group from baseline
Measured: baseline and day 90
RAND-36 (Quality-of-life measure)
Change in the dFMT vs aFMT group from baseline
Measured: baseline and day 90
Maastricht Ankylosing Spondylitis Enthesitis Score (MASES, 0-13)
Higher score indicating more widespread pain. Change in the dFMT vs aFMT group from baseline
Measured: baseline and day 90
The 66/68 Joint Count Score
Indicating number of swollen and tender joints. Change in the dFMT vs aFMT group from baseline
Measured: baseline and day 90
Bath Ankylosing Spondylitis Metrology Index (BASMI)
Indicating restricted mobility. Change in the dFMT vs aFMT group from baseline
Measured: baseline and day 90
Ankylosing Spondylitis Disease Activity Score (ASDAS)40
Improvement of at least 40% in 3 out of four domains without worsening of 20% or more in the remaining domain.Long term change that includes the extended open labeled follow up in the dFMT vs aFMT group from baseline
Measured: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Bath Ankylosing Spondylitis Disease Activity Index (BASDAI, 0-10)
Higher score indicates more active disease. Long term change that includes the extended open labeled follow up in the dFMT vs aFMT group from baseline
Measured: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Bath Anykylosing Spondylitis Funtional Index (BASFI, 0-10)
Higher score indicating more severe disease impact. Long term change that includes the extended open labeled follow up in the dFMT vs aFMT group from baseline
Measured: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Patient global assessment (PGA, 0-10)
Patient's evaluation of disease impact. Higher score indicating worse disease. Long term change that includes the extended open labeled follow up in the dFMT vs aFMT group from baseline
Measured: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
VAS spinal pain (0-10)
Patient's assessment of spinal pain og visual scale. Higher score indicates more pain.
Long term change that includes the extended open labeled follow up in the dFMT vs aFMT group from baseline
Measured: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Modified Fatigue Impact Scale (0-84)
Higher score indicating greater impact of fatigue on daily life. Long term change that includes the extended open labeled follow up in the dFMT vs aFMT group from baseline
Measured: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
RAND-36
Quality-of-life measure. Long term change that includes the extended open labeled follow up in the dFMT vs aFMT group from baseline
Measured: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jun 2024
- Study start1 Jun 2024
- Primary completionMay 2027 (estimated)
- Study completionNov 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (6)Papers the sponsor has linked to this study.
- Other trials for Axial SpondyloarthritisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- A blinded, randomized, placebo-controlled, parallel-group, single-center, superiority, phase II clinical trial. Participants randomized to active treatment will receive FMT from one of three donors. Allocation will be random in blocks of 9 (Donor A: Donor B : Donor C : Placebo 2:2:2:3).
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 99 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University Hospital of North Norway
- Sponsor type
- University, hospital or other
- Collaborators
- Helse Nord
- Responsible party
- Principal investigator, Gunnstein Bakland, University Hospital of North Norway
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06451588
- Sponsor's protocol ID
- 537025
- Acronym
- MicroSpA
- Status last verified
- Aug 2026
- First submitted
- 4 Jun 2024
- Last updated
- 14 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: There is not an IPD established.
Publications
Baraliakos X, Braun J. Spondyloarthritides. Best Pract Res Clin Rheumatol. 2011 Dec;25(6):825-42. doi: 10.1016/j.berh.2011.11.006.
PubMed 22265264Zheng D, Liwinski T, Elinav E. Interaction between microbiota and immunity in health and disease. Cell Res. 2020 Jun;30(6):492-506. doi: 10.1038/s41422-020-0332-7. Epub 2020 May 20.
PubMed 32433595Imdad A, Nicholson MR, Tanner-Smith EE, Zackular JP, Gomez-Duarte OG, Beaulieu DB, Acra S. Fecal transplantation for treatment of inflammatory bowel disease. Cochrane Database Syst Rev. 2018 Nov 13;11(11):CD012774. doi: 10.1002/14651858.CD012774.pub2.
PubMed 30480772Bazin T, Hooks KB, Barnetche T, Truchetet ME, Enaud R, Richez C, Dougados M, Hubert C, Barre A, Nikolski M, Schaeverbeke T. Microbiota Composition May Predict Anti-Tnf Alpha Response in Spondyloarthritis Patients: an Exploratory Study. Sci Rep. 2018 Apr 3;8(1):5446. doi: 10.1038/s41598-018-23571-4.
PubMed 29615661Johnsen PH, Hilpusch F, Cavanagh JP, Leikanger IS, Kolstad C, Valle PC, Goll R. Faecal microbiota transplantation versus placebo for moderate-to-severe irritable bowel syndrome: a double-blind, randomised, placebo-controlled, parallel-group, single-centre trial. Lancet Gastroenterol Hepatol. 2018 Jan;3(1):17-24. doi: 10.1016/S2468-1253(17)30338-2. Epub 2017 Nov 1.
PubMed 29100842Breban M, Beaufrere M, Glatigny S. The microbiome in spondyloarthritis. Best Pract Res Clin Rheumatol. 2019 Dec;33(6):101495. doi: 10.1016/j.berh.2020.101495. Epub 2020 Mar 12.
PubMed 32173258
Study at a glance
From the registry record, last updated by the sponsor on 14 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Donor Versus Autologous Fecal Microbiota Transplantation for Axial Spondyloarthritis: a Double Blind, Placebo-Controlled, Randomized Trial
- ClinicalTrials.gov ID
- NCT06451588
- Acronym / sponsor ID
- MicroSpA / 537025
- Conditions
- Axial Spondyloarthritis, Ankylosing Spondylitis, Dysbiosis, Spondyloarthritis, Spondylitis, Arthritis
- Keywords
- Axial Spondyloarthritis, Microbiome, Fecal Microbiota Transplantation, Microbiota, FMT, RCT
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 99 participants (estimated)
- Lead sponsor
- University Hospital of North NorwayUniversity, hospital or other
- Collaborators
- Helse Nord
- Study start
- 1 Jun 2024 (actual)
- Primary completion
- May 2027 (estimated)
- Study completion
- Nov 2027 (estimated)
- First posted
- 11 Jun 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Although biologic therapy have revolutionized the treatment of Spondyloarthrtitis (SpA), many patients do not experience complete relief of SpA related complaints.
It has been established that patients with SpA have an altered composition of microorganisms (microbiota) in the gut compared to healthy controls, and that this correlates to disease activity and respons to therapy.
The goal of this randomized double-blind study is to evaluate the efficacy of fecal microbiota transplantation (FMT) in patients with axial SpA with a suboptimal effect of biologic therapy.
The main questions it aims to answer are:
- Can FMT reduce disease activity in axial SpA?
- Can FMT alleviate pain and reduce fatigue in axial SpA?
- Is the composition of microorganisms restored to normal in patients with SpA after a treatment with FMT?
Participants will receive a single treatment in the form of an enema with either donor FMT or placebo at baseline. The primary endpoint will be evaluated after 90 days, but efficacy and safety will be monitored from baseline until 365 days.
Detailed description
Axial Spondyloarthritis (axSpA) is a chronic inflammatory disease affecting the sacroiliac joints (SIJ) and the spine.
The approach to treatment of axSpA is a combination of patient education, with a focus on exercise and lifestyle, and a medical treatment. Non-steroidal anti-inflammatory drugs (NSAIDs) are the first-line medical treatment, providing symptom relief for a large portion of the patients. For patients with inadequate response, or intolerance, to NSAIDs, biological (TNFi and IL17i) or targeted synthetic (JAKi) disease modifying drugs (b/ts-DMARDs) are considered a second-line treatment option and provide excellent efficacy for many patients. However, a substantial portion of the patients experience active disease despite this second-line therapy.
The cause of the disease is multifactorial, and both genetic and environmental factors contribute in the pathogenesis. Patients with axSpA have a higher prevalence of inflammatory bowel disease (IBD) than the background population, i.e. Crohn's disease and ulcerative colitis. However, inflammation in the gut is also demonstrated in 50-70% of patients without symptoms of IBD, and this inflammation is believed to be of importance in the development of the disease.
The human gut microbiota is the collection of microbes in the intestines. The composition of the microbiota is the result of many factors and have evolved over time to form a mutually beneficial relationship to both humans and microorganisms. Normally there is a balance and a stability in this composition, but in many conditions an imbalance, termed dysbiosis, has been demonstrated. This is also the case in axSpA, and the extent of this dysbiosis also relates to disease activity and to response to therapy.
Fecal microbiota transplantation (FMT) is a method used to alter the microbiota composition by transferring microbes from a healthy individual to a recipient. In several conditions this has both proven the ability to alter the microbiota and to provide symptom relief , e.g. clostridium difficile infections, ulcerative colitis and irritable bowel syndrome.
In the Microspa study, we aim to evaluate whether fecal microbiota transplantation (FMT) can induce clinical remission and symptom relief in patients with axial spondyloarthritis who have shown an inadequate response to biologic therapy.
Microspa 2 is a parallel trial that retains the overall design of the original study, with adjustments made to the eligibility criteria and primary and secondary endpoints. All other components-including outcome measures, sample size, randomization strategy, and statistical analysis plan-remain unchanged.
In Microspa 2, eligible participants include patients who are biologic-naïve or who have previously used biologic therapy but discontinued treatment. Patients currently receiving biologic therapy are excluded. The primary endpoint is the proportion of patients in the donor FMT group compared to the autologous FMT group who initiate immunomodulatory treatment within 90 days following the intervention. An additional secondary endpoint is the proportion of patients initiating immunomodulatory treatment within 365 days post-intervention.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 4
- Model description
- A blinded, randomized, placebo-controlled, parallel-group, single-center, superiority, phase II clinical trial. Participants randomized to active treatment will receive FMT from one of three donors. Allocation will be random in blocks of 9 (Donor A: Donor B : Donor C : Placebo 2:2:2:3).
| Arm | Type | Receives |
|---|---|---|
| Donor A FMT | Experimental | Drug: FMTActive treatment contain 60g of feces from a single healthy, screened donor. The feces is combined with glycerol and saline to a total volume of 440 ml in an enema bag. Each participant will only receive a single treatment at baseline. |
| Donor B FMT | Experimental | Drug: FMTActive treatment contain 60g of feces from a single healthy, screened donor. The feces is combined with glycerol and saline to a total volume of 440 ml in an enema bag. Each participant will only receive a single treatment at baseline. |
| Donor C FMT | Experimental | Drug: FMTActive treatment contain 60g of feces from a single healthy, screened donor. The feces is combined with glycerol and saline to a total volume of 440 ml in an enema bag. Each participant will only receive a single treatment at baseline. |
| Placebo/autologous FMT | Placebo comparator | Drug: PlaceboPlacebo treatment will be processed identically to active treatment, but with paritcipants own stool. The patients in the placebo group will consequently receive an enema with 60g of their own feces combined with glycerol and saline as a single treatment at baseline. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Axial Spondyloarthritis according to the ASAS classification criteria
- Active disease defined as ASDAS ≥2.1 with elevated CRP ≥3 OR active inflammation on MRI within the last 3 months
- Onset of axial SpA within last 10 years
- Unsatisfactory relief of NSAIDs
- On stable immunomodulatory treatment (TNFi, IL17i or JAKi) the last 3 months OR without immunomodulatory treatment last 3 months
Key exclusion criteria (20 listed)
- Planned dose adjustment or change in immunomodulatory treatment the next 90 days
- Disease or disorder with life expectancy of ≤5 years
- Severe immune deficiency (acquired, congenital og du to medication)
- Previous treatment with FMT
- Regular use of opioids with the exception of codeine and tramadol
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| FMTActive FMT | Drug | Donor A FMT, Donor B FMT, Donor C FMT |
| PlaceboThe placebo treatment will be prepared based on the patients' fecal samples (autologous). | Drug | Placebo/autologous FMT |
Primary outcome
Minimal Clinically Important Improvement
Time frame: 90 days
Proportion of patients that meet the criteria of Minimal Clinically Important Improvement in the donor FMT (dFMT) versus the autologous FMT (aFMT) group at day 90 after treatment (FMT - Fecal Microbiota Transplantation). Minimal Clinically Important Improvement is defined by a decrease of ≥1,1 in ASDAS-CRP (Ankylosing Spondylitis Disease Activity Score).
18 secondary outcomes
Adverse events
Time frame: Day 0-90 and day 91-365
Assessment in Spondyloarthritis International Society (ASAS)20
Time frame: baseline, day 30, day 60 and day 90
Bath Ankylosing Spondylitis Disease Activity Index (BASDAI, 0-10)
Time frame: baseline, day 30, day 60 and day 90
Bath Ankylosing Spondylitis Funtional Index (BASFI, 0-10)
Time frame: baseline, day 30, day 60 and day 90
Patient global assessment of disease (PGA, 0-10)
Time frame: baseline, day 30, day 60 and day 90
VAS spinal pain (Visual Analogue Scale, 0-10)
Time frame: baseline, day 30, day 60 and day 90
Modified Fatigue Impact Scale (0-84)
Time frame: baseline and day 90
RAND-36 (Quality-of-life measure)
Time frame: baseline and day 90
Maastricht Ankylosing Spondylitis Enthesitis Score (MASES, 0-13)
Time frame: baseline and day 90
The 66/68 Joint Count Score
Time frame: baseline and day 90
Bath Ankylosing Spondylitis Metrology Index (BASMI)
Time frame: baseline and day 90
Ankylosing Spondylitis Disease Activity Score (ASDAS)40
Time frame: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Bath Ankylosing Spondylitis Disease Activity Index (BASDAI, 0-10)
Time frame: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Bath Anykylosing Spondylitis Funtional Index (BASFI, 0-10)
Time frame: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Patient global assessment (PGA, 0-10)
Time frame: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
VAS spinal pain (0-10)
Time frame: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Modified Fatigue Impact Scale (0-84)
Time frame: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
RAND-36
Time frame: baseline and day 30, day 60, day 90, day 180, day 270 and day 365
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Aug 2026.
- Results publication: PubMed 22265264Baraliakos X, Braun J. Spondyloarthritides. Best Pract Res Clin Rheumatol. 2011 Dec;25(6):825-42. doi: 10.1016/j.berh.2011.11.006.
- Results publication: PubMed 32433595Zheng D, Liwinski T, Elinav E. Interaction between microbiota and immunity in health and disease. Cell Res. 2020 Jun;30(6):492-506. doi: 10.1038/s41422-020-0332-7. Epub 2020 May 20.
- Results publication: PubMed 30480772Imdad A, Nicholson MR, Tanner-Smith EE, Zackular JP, Gomez-Duarte OG, Beaulieu DB, Acra S. Fecal transplantation for treatment of inflammatory bowel disease. Cochrane Database Syst Rev. 2018 Nov 13;11(11):CD012774. doi: 10.1002/14651858.CD012774.pub2.
- Results publication: PubMed 29615661Bazin T, Hooks KB, Barnetche T, Truchetet ME, Enaud R, Richez C, Dougados M, Hubert C, Barre A, Nikolski M, Schaeverbeke T. Microbiota Composition May Predict Anti-Tnf Alpha Response in Spondyloarthritis Patients: an Exploratory Study. Sci Rep. 2018 Apr 3;8(1):5446. doi: 10.1038/s41598-018-23571-4.
- Results publication: PubMed 29100842Johnsen PH, Hilpusch F, Cavanagh JP, Leikanger IS, Kolstad C, Valle PC, Goll R. Faecal microbiota transplantation versus placebo for moderate-to-severe irritable bowel syndrome: a double-blind, randomised, placebo-controlled, parallel-group, single-centre trial. Lancet Gastroenterol Hepatol. 2018 Jan;3(1):17-24. doi: 10.1016/S2468-1253(17)30338-2. Epub 2017 Nov 1.
- Results publication: PubMed 32173258Breban M, Beaufrere M, Glatigny S. The microbiome in spondyloarthritis. Best Pract Res Clin Rheumatol. 2019 Dec;33(6):101495. doi: 10.1016/j.berh.2020.101495. Epub 2020 Mar 12.
- Individual participant dataSharing planned: No. There is not an IPD established.
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Psoriatic Arthritis, Axial Spondyloarthritis
RecruitingObservational study
Pain Phenotyping of Rheumatic Diseases - An Observational Study
Rheumatic Diseases, Lupus Erythematosus, Systemic
RecruitingObservational study
Identification of Serum Level of Glutathione Peroxidase 4
Spondyloarthropathy
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Peter Johnsen, MD PhD contact
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing FMT in people with Axial Spondyloarthritis and Ankylosing Spondylitis, run by University Hospital of North Norway at 1 site in Norway.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 14 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Norway. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Gunnstein Bakland, MD PhD (+4795860791, gunnstein.bakland@unn.no), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Minimal Clinically Important Improvement (time frame: 90 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06451588, which also lists 6 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Aug 2026.