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Immune ThrombocytopeniaRiFT-ITPNCT03820960

Risk Factors for Thrombosis in Immune Thrombocytopenia

An observational study of Immune Thrombocytopenia, run by University Hospital, Toulouse at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Immune thrombocytopenia (ITP) is a rare autoimmune disease (annual incidence: 3-4/105 inhabitants) leading to an increased risk of spontaneous bleeding. ITP is said "primary" when not associated to other systemic disease (lymphoma, systemic autoimmune disease, chronic infectious disease…). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Immune Thrombocytopenia
How many people
10,039 participants
Where
1 siteFrance
Study dates
1 Feb 2019to 31 Mar 2021
Phase
Observational
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Observational population-based study in France in the French Adult Immune THrombocytopenia (FAITH) cohort from July 2009 until June 2015. The FAITH study identifies since July 2009 all incident primary ITP adults in France within the national health insurance database (Système National d'Informations Inter-Régimes de l'Assurance Maladie, SNIIRAM, >66 million inhabitants).

Who may be able to join

  • Incident primary ITP adults

Who cannot join

  • Secondary as well as prevalent ITP patients on July, 30th 2009 are excluded by the algorithm

Trial locations and contacts

1 site in 1 country.

France1 site
  • University Hospital Toulouse

    Toulouse

Other trials in France

About this study

Immune thrombocytopenia (ITP) is a rare autoimmune disease (annual incidence: 3-4/105 inhabitants) leading to an increased risk of spontaneous bleeding. ITP is said "primary" when not associated to other systemic disease (lymphoma, systemic autoimmune disease, chronic infectious disease…). First-line treatment is based on corticosteroids. Intravenous immunoglobulin (IVIg) is added in case of serious bleeding. In about 70% of adult cases, ITP becomes persistent or chronic (lasting >3 months and >12 months, respectively). Second-line treatments are then indicated. Among them, thrombopoietin-receptor agonists (TPO-RAs), romiplostim and eltrombopag are increasingly used. Splenectomy is used as ultimate treatment.

Paradoxically, the risk of thrombosis is higher in ITP patients in comparison with the general population, due to the release of young hyperactive platelets from bone marrow. The incidence of thrombosis in ITP patients has been estimated between 0.5 and 3/100 patients-years. However, risk factors for thrombosis in ITP are not known, except splenectomy that is used in very few patients now. The role of other ITP treatments in thrombosis occurrence has been evoked, particularly for corticosteroids and IVIg. TPO-RAs have been associated with a risk of thrombosis in clinical trials and pharmacovigilance studies, even in case of low or normal platelet count. However, this risk has not been measured in the real-life practice, adjusted for other risk factors for thrombosis.

Keywords
Thrombosis
Medical subject headings
Purpura, Thrombocytopenic, Idiopathic, Thrombosis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Risk for thrombosis in adult primary ITP patients treated with ITP treatment

    Number of first hospitalization for arterial and veinous thrombosis in patients treated with ITP treatment

    Measured: from July 2009 until June 2015

Secondary outcomes (1)
  1. Risk thrombosis in adult primary ITP patients treated with TPO-RAs.

    Number of first hospitalization for arterial and veinous thrombosis in patients treated with ITP patients treated with TPO-RAs.

    Measured: from July 2009 until June 2015

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jan 2019
  2. Study start1 Feb 2019
  3. Primary completion28 Feb 2021
  4. Study completion31 Mar 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Retrospective
Enrolment
10,039 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03820960
Sponsor's protocol ID
RC31/17/0148
Acronym
RiFT-ITP
Status last verified
Sep 2021
First submitted
22 Jan 2019
Last updated
5 Sep 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Lafaurie M, Maquet J, Baricault B, Ekstrand C, Christiansen CF, Linder M, Bahmanyar S, Norgaard M, Sailler L, Lapeyre-Mestre M, Sommet A, Moulis G. Risk factors of hospitalisation for thrombosis in adults with primary immune thrombocytopenia, including disease-specific treatments: a French nationwide cohort study. Br J Haematol. 2021 Nov;195(3):456-465. doi: 10.1111/bjh.17709. Epub 2021 Aug 12.

    PubMed 34386974

Questions about this trial

What is this clinical trial studying?

An observational study of Immune Thrombocytopenia, run by University Hospital, Toulouse at 1 site in France.

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 1 inclusion and 1 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: finished, as of the sponsor's last update on 5 Sep 2021. 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 France. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Risk for thrombosis in adult primary ITP patients treated with ITP treatment (time frame: from July 2009 until June 2015). 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 NCT03820960, which also lists 1 linked publication.

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 5 Sep 2021.

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