CRYSTALILLE Cohort: Getting the Whole Picture of Crystal-related Arthropathies (CRYSTALILLE)
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
| ClinicalTrials.gov Identifier: NCT04695028 |
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Recruitment Status :
Not yet recruiting
First Posted : January 5, 2021
Last Update Posted : January 5, 2021
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| Condition or disease | Intervention/treatment |
|---|---|
| Gout Chondrocalcinosis Hydroxyapatite | Other: Data collection |
All patients already included in another observational study set up in 2016 and meeting the eligibility criteria may be included in this study. An information letter will be sent to them by mail. If they wish to oppose to the use of their data, they can then return the objection form.
This sample will be supplemented by new patients who are recruited during a classic rheumatology consultation. The investigator will propose the study to all patients meeting the inclusion and non-inclusion criteria.
They will be informed of the objectives of the study and their rights. For patients who agree to participate in the study, sociodemographic and clinical characteristics will be collected.
Depending on the usual care, they will benefit from an ultrasound and/or a dual energy scanner (M0). Imaging data will be collected. Routine clinical follow-up is then carried out in consultation, with collection of clinical and biological evolution data, and morphological data if necessary if imaging is rechecked, until the patient is lost to follow-up or the follow-up is interrupted at the GHICL for any reason.
Available quarterly or semi-annual data will be collected.
| Study Type : | Observational [Patient Registry] |
| Estimated Enrollment : | 1000 participants |
| Observational Model: | Cohort |
| Time Perspective: | Prospective |
| Target Follow-Up Duration: | 10 Years |
| Official Title: | Data Collection for the Constitution of an Observatory for Patients Suffering From Microcrystalline Rheumatism With Morphological Phenotyping |
| Estimated Study Start Date : | January 2021 |
| Estimated Primary Completion Date : | October 2022 |
| Estimated Study Completion Date : | October 2030 |
| Group/Cohort | Intervention/treatment |
|---|---|
| Persons with crystal related arthropathies |
Other: Data collection
The following data will be collected by the physician: sociodemographic profile, clinical manifestations, comorbidities, laboratory tests,etc. Diagnostic performance of different imagery techniques, performance of crystal deposit quantification in ultrasound and Dual-energy computed tomography (DECT), link between co-morbidities and volume of baseline crystal deposits then during monitoring, link between co-morbidities (including cardiovascular events and new diagnoses of co-morbidity) and vascular baseline crystal deposits and during follow-up, link between microcrystalline rheumatism activity and the quantity of crystal deposits in baseline imaging and during follow-up, link between co-morbidities and the evolution of microcrystalline baseline rheumatism and then during follow-up, link between co-morbidities and the evolution of crystal deposition volumes, the concordance of the evaluation of uratic stocks and their evolution between the imagery means. |
- Diagnosis of microcrystalline rheumatism [ Time Frame: day 0 ]
- Weight [ Time Frame: day 0 ]measured in Kg
- Height [ Time Frame: day 0 ]measured in cm
- Index body mass [ Time Frame: day 0 ]
- Comorbidities [ Time Frame: day 0 ]
- Number of rheumatic flares [ Time Frame: day 0 ]
- Intensity of rheumatic flares [ Time Frame: day 0 ]
- Identification of subcutaneous tophi [ Time Frame: day 0 ]
- Uricemia [ Time Frame: day 0 ]
- Renal function panel [ Time Frame: day 0 ]Panel includes albumin, calcium, carbon dioxide, creatinine, chloride, glucose, phosphorous, potassium, sodium, and BUN and a calculated anion gap value
- Lipid profile [ Time Frame: day 0 ]
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
| Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | No |
| Sampling Method: | Probability Sample |
Inclusion Criteria:
- Diagnosis of gout according to American College of Rheumatology /European League Against Rheumatism (ACR/EULAR) 2015 criteria OR diagnosis of calcium pyrophosphate dihydrate crystal deposition disease (CPPD) based on EULAR 2011 recommendations OR diagnosis of hydroxyapatite crystal rheumatism (HCR) according to a typical clinical sequence and demonstration of compatible calcium deposits on imaging
- patient who will benefit or has benefited from an ultrasound and/or DECT evaluation of microcrystalline deposits
- clinical suspicion of microcrystalline rheumatism requiring further imaging to confirm the diagnosis
Exclusion Criteria:
- Refusal or contra-indication to perform ultrasound or dual energy scanning.
- Patient's opposition to the use of his or her health data for research purposes
- Patient under guardianship or curatorship
- Pregnant woman
- Person not affiliated to a social security scheme or entitled to a social security benefit
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04695028
| Contact: Amélie Lansiaux, MD, PhD | 0033320225269 | lansiaux.amelie@ghicl.net | |
| Contact: Mélanie Hamez | 0033320225731 | hamez.melanie@ghicl.net |
| Principal Investigator: | Tristan Pascart | GHICL |
| Responsible Party: | Lille Catholic University |
| ClinicalTrials.gov Identifier: | NCT04695028 |
| Other Study ID Numbers: |
RC-P00101 |
| First Posted: | January 5, 2021 Key Record Dates |
| Last Update Posted: | January 5, 2021 |
| Last Verified: | January 2021 |
| Individual Participant Data (IPD) Sharing Statement: | |
| Plan to Share IPD: | Yes |
| Studies a U.S. FDA-regulated Drug Product: | No |
| Studies a U.S. FDA-regulated Device Product: | No |
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Gout Chondrocalcinosis Hydroxyapatite |
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Chondrocalcinosis Arthritis Joint Diseases Musculoskeletal Diseases Crystal Arthropathies |

