ClinicalTrials.gg
Not yet recruitingNCT06956885STINGUpdated May 4, 2025

Maintenance or Withdrawal of Urate Lowering Therapy According to Ultrasound Features in Gout Patients: a Randomised Controlled Trial Stop Treatment In Gout

A Phase 2 interventional study of Discontibuation of oral ULT and Maintenance of ULT in Gout Chronic, sponsored by Assistance Publique - Hôpitaux de Paris. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-05-04.

Sponsored by Assistance Publique - Hôpitaux de Paris · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
450
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

According to international recommendations, urate lowering therapy (ULT), mainly the xanthine oxidase inhibitors (XOIs) allopurinol and febuxostat, should be prescribed lifelong in gout patients. However, this recommendation comes up against very poor adherence to ULT, since around half of patients stop their treatment at 5 years. Moreover, there is uncertainty about the cardiovascular tolerance of febuxostat taken over the long term. Finally, although XOIs are generally well tolerated, they can cause side effects and require regular biological monitoring. The hypothesis is that the risk of flares following withdrawal of ULT is very low in gout patients when urate store is depleted and repeated ultrasounds (US) do not demonstrate the reappearance of urate deposits.

02

Conditions studied

  • Gout Chronic

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03

In context

Gout

345 studies on the registry are indexed under Gout; 49 are open to participants now.

This study's planned enrollment of 450 is above the median of 83 across 286 interventional studies indexed under Gout.

Browse Gout studies →

Lead sponsor

Assistance Publique - Hôpitaux de Paris is the lead sponsor of 3,592 studies on the registry; 1,033 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥ 18 years
  • Gout, defined according to the 2015 ACR/EULAR classification criteria
  • No flares for at least 2 years
  • No tophi
  • Currently receiving allopurinol or febuxostat taken for at least 2 years and SUA levels ≤ 60 mg/l
  • No urate deposit on ultrasound at inclusion visit at both MTPs 1 and knees
  • Ability to provide
  • Women of (WOCBP) are required to have a negative pregnancy test before treatment and must agree to maintain during treatment highly effective (ie,abstinence, combined estrogen- and progestogen-containing hormonal contraception, ovulation inhibitors (Oral, Intravaginal, Transdermal); Progestogen-only hormonal contraception associated with inhibition of ovulation (Oral, Injectable, Implantable); Intrauterine device (IUD); Intrauterine hormone-releasing system (IUS); Bilateral tubal occlusion; Vasectomised partner).
  • Health Insurance

Exclusion criteria

Exclusion Criteria:

  • Unstable systemic medical condition (e.g., stage IV heart failure, recent myocardial infarction, advanced cancer)
  • History of allergy to allopurinol or febuxostat or one of the
  • Association with azathioprine, mercaptopurine (cytostatics-antimetabolites)
  • to experimental medicinal products or auxiliary medicinal products
  • CKD stage 4 ( less than 30 ml/mn/1.73 m2)
  • Ongoing treatment with uricosurics (benzbromarone and probenecid) or uricase
  • Patient on SMA (state medical aid-AME)
  • Participation in other clinical trial on medicinal product for human use
  • Lack of for women of .
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
450 participants (estimated)

Study arms

  • Experimental
    Discontinuation of urate lowering therapy

    Drug: Discontibuation of oral ULT

  • Active comparator
    Continuation of urate lowering therapy (usual care)

    Drug: Maintenance of ULT

Interventions

  • DrugDiscontibuation of oral ULT

    Patients will stop the ULT at D0. They will have an US scan to look for urate deposits at each visit.

  • DrugMaintenance of ULT

    Patients will continue their ULT according to the recommendations of the Eular and French Society of Rheumatology, to maintain their SUA levels below 60 mg/l.

06

What researchers measure

Primary outcomes

  1. Proportion of patients experiencing one or more flares

    According to the Gaffo's criteria

    Time frame: At 2 years

Secondary outcomes

  1. Proportion of patients experiencing one or more flares

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 6 months

  2. Proportion of patients experiencing one or more flares

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 12 months

  3. Proportion of patients experiencing one or more flares

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 18 months

  4. Proportion of patients experiencing one or more flares

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 30 months

  5. Proportion of patients experiencing one or more flares

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 36 months

  6. Mean flare rates

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 6 months

  7. Mean flare rates

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 12 months

  8. Mean flare rates

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 18 months

  9. Mean flare rates

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 24 months

  10. Mean flare rates

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 30 months

  11. Mean flare rates

    According to both the Gaffo's criteria and the patient-reported Gout Attack Intensity Score (GAIS)

    Time frame: At 36 months

  12. US features of gout at MPT1s

    Double contour sign, tophi, aggregates for withdrawal arm

    Time frame: At 6 months

  13. US features of gout at MPT1s

    Double contour sign, tophi, aggregates for withdrawal arm

    Time frame: At 12 months

  14. US features of gout at MPT1s

    Double contour sign, tophi, aggregates for withdrawal arm

    Time frame: At 18 months

  15. US features of gout at MPT1s

    Double contour sign, tophi, aggregates for both arms

    Time frame: At 24 months

  16. US features of gout at MPT1s

    Double contour sign, tophi, aggregates for withdrawal arm

    Time frame: At 30 months

  17. US features of gout at MPT1s

    Double contour sign, tophi, aggregates for withdrawal arm

    Time frame: At 36 months

  18. US features of gout at knees

    Double contour sign for withdrawal arm

    Time frame: At 6 months

  19. US features of gout at knees

    Double contour sign for withdrawal arm

    Time frame: At 12 months

  20. US features of gout at knees

    Double contour sign for withdrawal arm

    Time frame: At 18 months

  21. US features of gout at knees

    Double contour sign for both arms

    Time frame: At 24 months

  22. US features of gout at knees

    Double contour sign for withdrawal arm

    Time frame: At 30 months

  23. US features of gout at knees

    Double contour sign for withdrawal arm

    Time frame: At 36 months

  24. Urate levels

    Time frame: At 6 months

  25. Urate levels

    Time frame: At 12 months

  26. Urate levels

    Time frame: At 18 months

  27. Urate levels

    Time frame: At 24 months

  28. Urate levels

    Time frame: At 30 months

  29. Urate levels

    Time frame: At 36 months

  30. Change from baseline of patient's global assessment of disease activity

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies 0-5-point Likert scale, the higher the score the more severe the disease

    Time frame: At 12 months

  31. Change from baseline of patient's global assessment of disease activity

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies 0-5-point Likert scale, the higher the score the more severe the disease

    Time frame: At 24 months

  32. Change from baseline of patient's global assessment of disease activity

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies 0-5-point Likert scale, the higher the score the more severe the disease

    Time frame: At 36 months

  33. Change from baseline in Healthrelated quality of life

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies EuroQol 5-domain-3L (EQ-5D3L) questionnaire The QLQ-C30 is composed of both multi-item scales and single-item measures. These include five functional scales, three symptom scales, a global health status / QoL scale, and six single items. Each of the multi-item scales includes a different set of items - no item occurs in more than one scale. All of the scales and single-item measures range in score from 0 to 100. A high scale score represents a higher response level. A high score for a functional scale represents a high/healthy level of functioning. A high score for the global health status/ QoL represents a high QoL and a high score for a symptom scale/item represents a high level of symptomatology/problems

    Time frame: At 12 months

  34. Change from baseline in Healthrelated quality of life

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies EuroQol 5-domain-3L (EQ-5D3L) questionnaire The QLQ-C30 is composed of both multi-item scales and single-item measures. These include five functional scales, three symptom scales, a global health status / QoL scale, and six single items. Each of the multi-item scales includes a different set of items - no item occurs in more than one scale. All of the scales and single-item measures range in score from 0 to 100. A high scale score represents a higher response level. A high score for a functional scale represents a high/healthy level of functioning. A high score for the global health status/ QoL represents a high QoL and a high score for a symptom scale/item represents a high level of symptomatology/problems

    Time frame: At 24 months

  35. Change from baseline in Healthrelated quality of life

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies EuroQol 5-domain-3L (EQ-5D3L) questionnaire The QLQ-C30 is composed of both multi-item scales and single-item measures. These include five functional scales, three symptom scales, a global health status / QoL scale, and six single items. Each of the multi-item scales includes a different set of items - no item occurs in more than one scale. All of the scales and single-item measures range in score from 0 to 100. A high scale score represents a higher response level. A high score for a functional scale represents a high/healthy level of functioning. A high score for the global health status/ QoL represents a high QoL and a high score for a symptom scale/item represents a high level of symptomatology/problems

    Time frame: At 36 months

  36. Change from baseline in Activity limitation

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies Health Assessment Questionnaire II is a 10-item score. Each item is rated on a 4-point Likert scale HAQ-II mean score ranges from 0 (no disability) to 3 (severe disability)

    Time frame: At 12 months

  37. Change from baseline in Activity limitation

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies Health Assessment Questionnaire II is a 10-item score. Each item is rated on a 4-point Likert scale HAQ-II mean score ranges from 0 (no disability) to 3 (severe disability)

    Time frame: At 24 months

  38. Change from baseline in Activity limitation

    Outcome Measures in Rheumatology (OMERACT) core outcome domains for long-term gout studies Health Assessment Questionnaire II is a 10-item score. Each item is rated on a 4-point Likert scale HAQ-II mean score ranges from 0 (no disability) to 3 (severe disability)

    Time frame: At 36 months

  39. Incidence of Major CardioVascular events

    Including nonfatal stroke, nonfatal myocardial infarction, cardiovascular death

    Time frame: At 6 months

  40. Incidence of Major CardioVascular events

    Including nonfatal stroke, nonfatal myocardial infarction, cardiovascular death

    Time frame: At 12 months

  41. Incidence of Major CardioVascular events

    Including nonfatal stroke, nonfatal myocardial infarction, cardiovascular death

    Time frame: At 18 months

  42. Incidence of Major CardioVascular events

    Including nonfatal stroke, nonfatal myocardial infarction, cardiovascular death

    Time frame: At 24 months

  43. Incidence of Major CardioVascular events

    Including nonfatal stroke, nonfatal myocardial infarction, cardiovascular death

    Time frame: At 30 months

  44. Incidence of Major CardioVascular events

    Including nonfatal stroke, nonfatal myocardial infarction, cardiovascular death

    Time frame: At 36 months

  45. estimated glomerular filtration rate (eGFR)

    Renal function

    Time frame: At 6 months

  46. estimated glomerular filtration rate (eGFR)

    Renal function

    Time frame: At 12 months

  47. estimated glomerular filtration rate (eGFR)

    Renal function

    Time frame: At 18 months

  48. estimated glomerular filtration rate (eGFR)

    Renal function

    Time frame: At 24 months

  49. estimated glomerular filtration rate (eGFR)

    Renal function

    Time frame: At 30 months

  50. estimated glomerular filtration rate (eGFR)

    Renal function

    Time frame: At 36 months

  51. Incidence of comorbidities

    Charlson index Total score varies from 0 to \>=5 The lower the score the higher the estimated 10-year survival

    Time frame: At 12 months

  52. Incidence of comorbidities

    Charlson index Total score varies from 0 to \>=5 The lower the score the higher the estimated 10-year survival

    Time frame: At 24 months

  53. Incidence of comorbidities

    Charlson index Total score varies from 0 to \>=5 The lower the score the higher the estimated 10-year survival

    Time frame: At 36 months

  54. Overall Survival

    Time frame: At 12 months

  55. Overall Survival

    Time frame: At 24 months

  56. Overall Survival

    Time frame: At 36 months

  57. Consumption of other drugs

    Colchicine, NSAIDs, steroids using a patient self-reported notebook

    Time frame: At 6 months

  58. Consumption of other drugs

    Colchicine, NSAIDs, steroids using a patient self-reported notebook

    Time frame: At 12 months

  59. Consumption of other drugs

    Colchicine, NSAIDs, steroids using a patient self-reported notebook

    Time frame: At 18 months

  60. Consumption of other drugs

    Colchicine, NSAIDs, steroids using a patient self-reported notebook

    Time frame: At 24 months

  61. Consumption of other drugs

    Colchicine, NSAIDs, steroids using a patient self-reported notebook

    Time frame: At 30 months

  62. Consumption of other drugs

    Colchicine, NSAIDs, steroids using a patient self-reported notebook

    Time frame: At 36 months

  63. Incidence of adverse events and serious adverse events

    According to CTCAE v5.0 classification (Common Terminology Criteria for Adverse Events)

    Time frame: At 6 months

  64. Incidence of adverse events and serious adverse events

    According to CTCAE v5.0 classification (Common Terminology Criteria for Adverse Events)

    Time frame: At 12 months

  65. Incidence of adverse events and serious adverse events

    According to CTCAE v5.0 classification (Common Terminology Criteria for Adverse Events)

    Time frame: At 18 months

  66. Incidence of adverse events and serious adverse events

    According to CTCAE v5.0 classification (Common Terminology Criteria for Adverse Events)

    Time frame: At 24 months

  67. Incidence of adverse events and serious adverse events

    According to CTCAE v5.0 classification (Common Terminology Criteria for Adverse Events)

    Time frame: At 30 months

  68. Incidence of adverse events and serious adverse events

    According to CTCAE v5.0 classification (Common Terminology Criteria for Adverse Events)

    Time frame: At 36 months

  69. Adherence to ULT

    Assessed by a questionnaire

    Time frame: At 6 months

  70. Adherence to ULT

    Assessed by a questionnaire

    Time frame: At 12 months

  71. Adherence to ULT

    Assessed by a questionnaire

    Time frame: At 18 months

  72. Adherence to ULT

    Assessed by a questionnaire

    Time frame: At 24 months

  73. Adherence to ULT

    Assessed by a questionnaire

    Time frame: At 30 months

  74. Adherence to ULT

    Assessed by a questionnaire

    Time frame: At 36 months

  75. Incremental Cost effectiveness ratios estimating cost per QALY gained

    Time frame: Up to 36 months

  76. Incremental Cost effectiveness ratios estimating cost per flare avoided.

    Time frame: Up to 36 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 4, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06956885
Responsible party
Sponsor
First posted
May 4, 2025
Start date
May 1, 2025 (estimated)
Primary completion
May 1, 2029 (estimated)
Completion
May 1, 2030 (estimated)
Last update
May 4, 2025

Study contacts

Paul Richette, MD PhD
Contact
pierre.moine@aphp.fr
1 49 95 86 31 ext. +33
Jérôme Lambert, MD PhD
Contact
jerome.lambert@u-paris.fr
1 42 49 49 60 ext. +33

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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