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Autoimmune Hemolytic AnemiaDRAIHANCT04024202

Data Registry of Auto Immune Hemolytic Anemia

An observational study of Autoimmune Hemolytic Anemia, run by Sanquin Research & Blood Bank Divisions at 2 sites in Netherlands.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In autoimmune hemolytic anemia (AIHA) auto-antibodies directed against red blood cells (RBCs) lead to increased RBC clearance (hemolysis). This can result in a potentially life-threatening anemia. AIHA is a rare disease with an incidence of 1-3 per 100,000 individuals. Read more about this study

Who is it for?
Ages 3 months and olderHealthy volunteers can take part
Conditions the study is for
Autoimmune Hemolytic Anemia
How many people
720 participants
Where
2 sitesNetherlands
Study dates
12 Jul 2019to 1 Dec 2024
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 3 months and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: Patients, from the age of 3 months, with a positive DAT a positive eluate and signs of hemolysis and patients with a positive DAT for complement only with a negative eluate but with signs of hemolysis, and blood donors with a positive DAT and a positive eluate and/or clinically relevant cold autoantibodies.

Who may be able to join

  • Sufficient comprehension of the Dutch language
  • Signed informed consent by patient and/or parent/caretaker or donor
  • Patients older than 3 months
  • Patients with a positive DAT, a positive eluate and signs of hemolysis*
  • Patients with a positive DAT with complement only, negative eluate, but with signs of hemolysis
  • Donors with a (repeatedly) positive DAT and a positive eluate and/or clinically relevant cold auto-antibodies

Who cannot join

  • Prior inclusion in the DRAIHA study

Trial locations and contacts

2 sites in 1 country.

M. Jalink, MD contact

+31205123373

m.jalink@sanquin.nl

Masja De Haas, Prof. MD PhD contact

+31205123373

m.dehaas@sanquin.nl

Netherlands2 sites, 2 recruiting
  • AMC

    Amsterdam-Zuidoost

    Not yet recruiting
  • UMC Radboud

    Nijmegen

    Recruiting

Other trials in Netherlands

About this study

Official title: The DRAIHA Study: Data Registry of AutoImmune Hemolytic Anemia, to Improve Diagnostic Testing for the Development of Personalized Treatment Protocols in AIHA Patients

In autoimmune hemolytic anemia (AIHA) auto-antibodies directed against red blood cells (RBCs) lead to increased RBC clearance (hemolysis). This can result in a potentially life-threatening anemia. AIHA is a rare disease with an incidence of 1-3 per 100,000 individuals. An unsolved difficulty in diagnosis of AIHA is the laboratory test accuracy. The current 'golden standard' for AIHA is the direct antiglobulin test (DAT). The DAT detects autoantibody- and/or complement-opsonized RBCs. The DAT has insufficient test characteristics since it remains falsely negative in approximate 5-10% of patients with AIHA, whereas a falsely positive DAT can be found in 8% of hospitalized individuals. Also apparently healthy blood donors can have a positive DAT. The consequences of DAT positivity are not well known and may point to early, asymptomatic disease, or to another disease associated with formation of RBC autoantibodies, such as a malignancy or (systemic) autoimmune disease. Currently, there are no guidelines to follow-up DAT positive donors.

A second unsolved difficulty is the choice of treatment in AIHA. Hemolysis can be stopped or at least attenuated with corticosteroids, aiming to inhibit autoantibody production and/or RBC destruction. Many patients do not respond adequately to corticosteroid treatment or develop severe side effects.

Read more

Currently, it is advised to avoid RBC transfusions since these may lead to aggravation of hemolysis and RBC alloantibody formation. But in case symptomatic anemia occurs, RBC transfusions need to be given. An evidence-based transfusion strategy for AIHA patients is needed to warrant safe transfusion in this complex patient group.

To design optimal diagnostic testing and (supportive) treatment algorithms, the investigators will study a group well-characterized patients with AIHA and blood donors without AIHA, via a prospective centralized clinical data collection and evaluation of new laboratory tests. With this data the knowledge of the AIHA pathophysiology and to evaluate diagnostic testing in correlation with clinical features and treatment outcome can be improved.

Medical subject headings
Anemia, Hemolytic, Autoimmune

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04024202
Study groupRoleWhat they receive
Patients1. Patients with a positive DAT, a positive eluate and signs of hemolysis 2. Patients with a positive DAT with complement only, negative eluate, but with hemolysis
Blood donorsBlood donors with a positive direct antiglobulin test and a positive eluate and/or clinically relevant cold auto-antibodies

What is being measured

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

  1. Immunological characteristics of autoantibodies in autoimmune hemolytic anemia (AIHA) patients - laboratory tests.

    Documentation of characteristics of autoantibodies (e.g. isotype, subtype, titer, thermal amplitude).

    Measured: 12-18 months

  2. Assessment of hemolysis before and after therapy, reported per class of auto-immune hemolytic anemia. - laboratory tests

    Documentation of hemolysis parameters (hemoglobin level (g/dL), reticulocytes (%), haptoglobin (mg/dL), bilirubin (μmol/L) and LDH(U/L)) before and after each type of therapy. AIHA classification as IgG/IgA only, IgG/IgA with complement activation or complement activation only.

    Measured: 12-18 months

Secondary outcomes (8)
  1. Incidence of underlying disease that causes or is associated with AIHA.

    Documentation of physician-reported underlying disease that caused AIHA (e.g. autoimmune and/or lymphoproliferative disease, infection, medication).

    Measured: 12-18 months

  2. Type of treatment prescribed as first-line, second-line or further-line treatment for AIHA.

    The percentage of patients receiving first, second or further-line treatment for AIHA will be calculated.

    Measured: 12-18 months

  3. Hematological response after each treatment line (CR, CR-u, PR and NR)

    Percentage of patients with CR, CR-u, PR and NR after each treatment line. Hematological response will be classified as CR (complete remission), CR-u (CR- undetermined), PR (partial response) and NR (no response).

    CR: normal hemoglobin, no signs of hemolysis (normal haptoglobin, normal amount of reticulocytes, bilirubin, LDH), no treatment and transfusion independence during the last 4 weeks.

    CR-u: as CR, but hemoglobin, reticulocytes, LDH and/or bilirubin are deviating through another reason (e.g. underlying malignant disease).

    PR: 1. Hemoglobin > 10g/dL, no signs of hemolysis, transfusion independent, but a continuous treatment with low dose prednisone (< 10 mg/day) or other immunosuppressive therapy is necessary. 2. Compensated hemolytic anemia with an stable hemoglobin >10g/dL, transfusion independent, maximal dose of prednisone < 10mg/day or other continuous immunosuppressive therapy or EPO.

    NR: no PR reached

    Measured: 12-18 months

  4. Relapse-free survival, defined as the time since the achievement of complete or partial remission until relapse of AIHA or dead from any cause.

    Relapse-free survival will be calculated as the time since the achievement of complete or partial remission until relapse of AIHA or dead from any cause. Median RFS and 95% CI will be calculated.

    Measured: 12-18 month

  5. Documentation of adverse events during the treatment of AIHA.

    Documentation of adverse events during the treatment of AIHA indicated according to the Common Terminology Criteria for Adverse Events v4.0 (CTCAE) Publish Date: May 28, 2009

    Measured: 12-18 month

  6. Assessment of hemolysis parameters after red blood cell transfusion.

    Documentation of hemolysis parameters (hemoglobin level (g/dL), reticulocytes (%), haptoglobin (mg/dL), bilirubin (μmol/L) and LDH (U/L)) before red blood cell transfusion.

    Measured: 1 and 7 days after transfusion

  7. Change in the incidence of auto- and alloantibodies after red blood cell transfusion.

    Compare the incidence of auto- and alloantibodies before and after red blood cell transfusion.

    Measured: 12-18 months

  8. Characteristics of autoantibodies of DAT positive blood donors.

    Documentation of characteristics of autoantibodies (e.g. isotype, subtype, titer, thermal amplitude) of DAT positive blood donors.

    Measured: 12-18 months

Timeline

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

  1. First posted18 Jul 2019
  2. Study start12 Jul 2019
  3. Primary completion1 Dec 2024 (estimated)
  4. Study completion1 Dec 2024 (estimated)

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
Cohort
Time perspective
Prospective
Enrolment
720 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04024202
Sponsor's protocol ID
PPOC 15-27
Acronym
DRAIHA
Status last verified
Jul 2019
First submitted
31 May 2019
Last updated
19 Jul 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Garratty G. Immune hemolytic anemia associated with negative routine serology. Semin Hematol. 2005 Jul;42(3):156-64. doi: 10.1053/j.seminhematol.2005.04.005.

    PubMed 16041665
  • Freedman J. False-positive antiglobulin tests in healthy subjects and in hospital patients. J Clin Pathol. 1979 Oct;32(10):1014-8. doi: 10.1136/jcp.32.10.1014.

    PubMed 521494
  • Barcellini W, Fattizzo B, Zaninoni A, Radice T, Nichele I, Di Bona E, Lunghi M, Tassinari C, Alfinito F, Ferrari A, Leporace AP, Niscola P, Carpenedo M, Boschetti C, Revelli N, Villa MA, Consonni D, Scaramucci L, De Fabritiis P, Tagariello G, Gaidano G, Rodeghiero F, Cortelezzi A, Zanella A. Clinical heterogeneity and predictors of outcome in primary autoimmune hemolytic anemia: a GIMEMA study of 308 patients. Blood. 2014 Nov 6;124(19):2930-6. doi: 10.1182/blood-2014-06-583021. Epub 2014 Sep 16.

    PubMed 25232059
  • Rottenberg Y, Yahalom V, Shinar E, Barchana M, Adler B, Paltiel O. Blood donors with positive direct antiglobulin tests are at increased risk for cancer. Transfusion. 2009 May;49(5):838-42. doi: 10.1111/j.1537-2995.2008.02054.x. Epub 2009 Jan 2.

    PubMed 19170992
  • Meulenbroek EM, de Haas M, Brouwer C, Folman C, Zeerleder SS, Wouters D. Complement deposition in autoimmune hemolytic anemia is a footprint for difficult-to-detect IgM autoantibodies. Haematologica. 2015 Nov;100(11):1407-14. doi: 10.3324/haematol.2015.128991. Epub 2015 Sep 9.

    PubMed 26354757
  • Zanella A, Barcellini W. Treatment of autoimmune hemolytic anemias. Haematologica. 2014 Oct;99(10):1547-54. doi: 10.3324/haematol.2014.114561.

    PubMed 25271314
  • Reynaud Q, Durieu I, Dutertre M, Ledochowski S, Durupt S, Michallet AS, Vital-Durand D, Lega JC. Efficacy and safety of rituximab in auto-immune hemolytic anemia: A meta-analysis of 21 studies. Autoimmun Rev. 2015 Apr;14(4):304-13. doi: 10.1016/j.autrev.2014.11.014. Epub 2014 Dec 9.

    PubMed 25497766
  • Shi J, Rose EL, Singh A, Hussain S, Stagliano NE, Parry GC, Panicker S. TNT003, an inhibitor of the serine protease C1s, prevents complement activation induced by cold agglutinins. Blood. 2014 Jun 26;123(26):4015-22. doi: 10.1182/blood-2014-02-556027. Epub 2014 Apr 2.

    PubMed 24695853
  • Wouters D, Stephan F, Strengers P, de Haas M, Brouwer C, Hagenbeek A, van Oers MH, Zeerleder S. C1-esterase inhibitor concentrate rescues erythrocytes from complement-mediated destruction in autoimmune hemolytic anemia. Blood. 2013 Feb 14;121(7):1242-4. doi: 10.1182/blood-2012-11-467209. No abstract available.

    PubMed 23411737

Questions about this trial

What is this clinical trial studying?

An observational study of Autoimmune Hemolytic Anemia, run by Sanquin Research & Blood Bank Divisions at 2 sites in Netherlands.

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 6 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: status not confirmed, as of the sponsor's last update on 19 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Netherlands. 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?

Results are not available in the source record.

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

Contact M. Jalink, MD (+31205123373, m.jalink@sanquin.nl), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Immunological characteristics of autoantibodies in autoimmune hemolytic anemia (AIHA) patients - laboratory tests. (time frame: 12-18 months). The study lists 2 primary outcomes in all. 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 NCT04024202, which also lists 9 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 19 Jul 2019.

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