NCT00426686

Brief Summary

Thrombotic thrombocytopenic purpura (TTP) is a thrombotic microangiopathy defined by the spontaneous formation of platelet thrombi in the microvessels. These platelet microthrombi are responsible for a mechanical hemolytic anemia, a thrombocytopenia and a multivisceral ischemia. TTP is a rare but life-threatening disease in the absence of appropriate treatment (PLASMATHERAPY). The onset of the disease usually occurs in adulthood (MOSCHCOVITZ syndrome) and rarely in childhood (UPSHAW-SCHULMAN syndrome). TTP is either sporadic or recurrent with multiple unpredictable relapses. TTP pathophysiology has remained obscure until a new metalloprotease, ADAMTS13, has been demonstrated to be involved in about 90% of all cases. Physiologically, ADAMTS13 function consists in limiting the size of von Willebrand factor (VWF) multimers and consequently, their hemostatic capacity. A large majority of TTP is associated with a severe deficiency of ADAMTS13. In most cases, ADAMTS13 severe deficiency is acquired via auto-antibodies to ADAMTS13; more rarely, ADAMTS13 deficiency is hereditary via ADAMTS13 gene mutations. ADAMTS13 auto-antibodies are either inhibitory of the catalytic activity or non inhibitory. ADAMTS13 mutations are spread all over the gene. TTP prognosis is quite heterogeneous. Indeed, in about one third of the patients, TTP is refractory to PLASMATHERAPY and/or chronic relapsing. Until now, TTP prognosis factors are not known. Their identification is however crucial both to adapt the curative treatment of an acute episode (addition of first intention immunosuppressive agents to PLASMATHERAPY) and to prevent relapses. In this context, the aim of the current project is to identify some ADAMTS13 related prognosis factors in TTP. A national prospective multicenter study including both adult and pediatric patients with TTP related to a severe ADAMTS13 deficiency will be designed over a three-year period. This study will involve our group as the French reference center for ADAMTS13 and 10 clinical departments from various French hospitals. Patients will be tested for ADAMTS13 activity and antigen, ADAMTS13 antibodies and ADAMTS13 gene sequencing. Our main hypothesis is that the inactivation of the ADAMTS13 domains crucial for its catalytic activity, either by inhibitory auto-antibodies (acquired TTP) or by genetic mutations (hereditary TTP) is a major bad prognosis factor.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
153

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2006

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2006

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

January 24, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 25, 2007

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2009

Completed
2.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2011

Completed
Last Updated

December 12, 2012

Status Verified

April 1, 2011

Enrollment Period

2.3 years

First QC Date

January 24, 2007

Last Update Submit

December 11, 2012

Conditions

Keywords

thrombotic thrombocytopenic purpuraprognostic factorsADAMTS13

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adult and pediatric patients with TTP related to a severe ADAMTS13 deficiency.

You may qualify if:

  • clinical suspicion of TTP
  • Hemoglobin level \< 10 g/dl (adult) or \< 12 g/dl (child)
  • Platelet level \< 150 giga/l
  • ADAMTS13 activity \< 5%

You may not qualify if:

  • Cancer
  • Organ graft
  • HIV infection

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hôpital Antoine Béclère

Clamart, 92140, France

Location

Related Publications (15)

  • Veyradier A, Obert B, Houllier A, Meyer D, Girma JP. Specific von Willebrand factor-cleaving protease in thrombotic microangiopathies: a study of 111 cases. Blood. 2001 Sep 15;98(6):1765-72. doi: 10.1182/blood.v98.6.1765.

    PMID: 11535510BACKGROUND
  • Veyradier A, Obert B, Haddad E, Cloarec S, Nivet H, Foulard M, Lesure F, Delattre P, Lakhdari M, Meyer D, Girma JP, Loirat C. Severe deficiency of the specific von Willebrand factor-cleaving protease (ADAMTS 13) activity in a subgroup of children with atypical hemolytic uremic syndrome. J Pediatr. 2003 Mar;142(3):310-7. doi: 10.1067/mpd.2003.79.

    PMID: 12640381BACKGROUND
  • Veyradier A, Lavergne JM, Ribba AS, Obert B, Loirat C, Meyer D, Girma JP. Ten candidate ADAMTS13 mutations in six French families with congenital thrombotic thrombocytopenic purpura (Upshaw-Schulman syndrome). J Thromb Haemost. 2004 Mar;2(3):424-9. doi: 10.1111/j.1538-7933.2004.00623.x.

    PMID: 15009458BACKGROUND
  • Fakhouri F, Vernant JP, Veyradier A, Wolf M, Kaplanski G, Binaut R, Rieger M, Scheiflinger F, Poullin P, Deroure B, Delarue R, Lesavre P, Vanhille P, Hermine O, Remuzzi G, Grunfeld JP. Efficiency of curative and prophylactic treatment with rituximab in ADAMTS13-deficient thrombotic thrombocytopenic purpura: a study of 11 cases. Blood. 2005 Sep 15;106(6):1932-7. doi: 10.1182/blood-2005-03-0848. Epub 2005 Jun 2.

    PMID: 15933059BACKGROUND
  • Ferrari S, Scheiflinger F, Rieger M, Mudde G, Wolf M, Coppo P, Girma JP, Azoulay E, Brun-Buisson C, Fakhouri F, Mira JP, Oksenhendler E, Poullin P, Rondeau E, Schleinitz N, Schlemmer B, Teboul JL, Vanhille P, Vernant JP, Meyer D, Veyradier A; French Clinical and Biological Network on Adult Thrombotic Microangiopathies. Prognostic value of anti-ADAMTS 13 antibody features (Ig isotype, titer, and inhibitory effect) in a cohort of 35 adult French patients undergoing a first episode of thrombotic microangiopathy with undetectable ADAMTS 13 activity. Blood. 2007 Apr 1;109(7):2815-22. doi: 10.1182/blood-2006-02-006064.

  • Malak S, Wolf M, Millot GA, Mariotte E, Veyradier A, Meynard JL, Korach JM, Malot S, Bussel A, Azoulay E, Boulanger E, Galicier L, Devaux E, Eschwege V, Gallien S, Adrie C, Schlemmer B, Rondeau E, Coppo P; Reseau d'Etude des Microangiopathies Thrombotiques (TMA-Rare Diseases Reference Center). Human immunodeficiency virus-associated thrombotic microangiopathies: clinical characteristics and outcome according to ADAMTS13 activity. Scand J Immunol. 2008 Sep;68(3):337-44. doi: 10.1111/j.1365-3083.2008.02143.x.

  • Loirat C, Girma JP, Desconclois C, Coppo P, Veyradier A. Thrombotic thrombocytopenic purpura related to severe ADAMTS13 deficiency in children. Pediatr Nephrol. 2009 Jan;24(1):19-29. doi: 10.1007/s00467-008-0863-5. Epub 2008 Jun 24.

  • Hommais A, Rayes J, Houllier A, Obert B, Legendre P, Veyradier A, Girma JP, Ribba AS. Molecular characterization of four ADAMTS13 mutations responsible for congenital thrombotic thrombocytopenic purpura (Upshaw-Schulman syndrome). Thromb Haemost. 2007 Sep;98(3):593-9.

  • Weisinger J, Bouzid R, Fadlallah J, Provot F, Poullin P, Le Guern V, Ribes D, Martis N, Delmas Y, Chantepie S, Rieu V, Benhamou Y, Choukroun G, Marie M, Dana R, Veyradier A, Joly BS, Coppo P. Immune-mediated thrombotic thrombocytopenic purpura with systemic lupus erythematosus: clinical features and outcome. Lupus Sci Med. 2025 Jul 28;12(2):e001691. doi: 10.1136/lupus-2025-001691.

  • Beranger N, Coppo P, Tsatsaris V, Boisseau P, Provot F, Delmas Y, Poullin P, Vanhoorelbeke K, Veyradier A, Joly BS. Management and follow-up of pregnancy-onset thrombotic thrombocytopenic purpura: the French experience. Blood Adv. 2024 Jan 9;8(1):183-193. doi: 10.1182/bloodadvances.2023011972.

  • Beranger N, Tsatsaris V, Coppo P, Veyradier A, Joly BS. High sFlt-1 (Soluble fms-Like Tyrosine Kinase 1)/PlGF (Placental Growth Factor) Ratio in Pregnancy-Onset Thrombotic Thrombocytopenic Purpura. Hypertension. 2023 Sep;80(9):e140-e142. doi: 10.1161/HYPERTENSIONAHA.123.20987. Epub 2023 May 12. No abstract available.

  • Joly BS, Stepanian A, Leblanc T, Hajage D, Chambost H, Harambat J, Fouyssac F, Guigonis V, Leverger G, Ulinski T, Kwon T, Loirat C, Coppo P, Veyradier A; French Reference Center for Thrombotic Microangiopathies. Child-onset and adolescent-onset acquired thrombotic thrombocytopenic purpura with severe ADAMTS13 deficiency: a cohort study of the French national registry for thrombotic microangiopathy. Lancet Haematol. 2016 Nov;3(11):e537-e546. doi: 10.1016/S2352-3026(16)30125-9. Epub 2016 Oct 3.

  • Mariotte E, Azoulay E, Galicier L, Rondeau E, Zouiti F, Boisseau P, Poullin P, de Maistre E, Provot F, Delmas Y, Perez P, Benhamou Y, Stepanian A, Coppo P, Veyradier A; French Reference Center for Thrombotic Microangiopathies. Epidemiology and pathophysiology of adulthood-onset thrombotic microangiopathy with severe ADAMTS13 deficiency (thrombotic thrombocytopenic purpura): a cross-sectional analysis of the French national registry for thrombotic microangiopathy. Lancet Haematol. 2016 May;3(5):e237-45. doi: 10.1016/S2352-3026(16)30018-7. Epub 2016 Apr 16.

  • Thouzeau S, Capdenat S, Stepanian A, Coppo P, Veyradier A. Evaluation of a commercial assay for ADAMTS13 activity measurement. Thromb Haemost. 2013 Oct;110(4):852-3. doi: 10.1160/TH13-05-0393. Epub 2013 Jul 11. No abstract available.

  • Moatti-Cohen M, Garrec C, Wolf M, Boisseau P, Galicier L, Azoulay E, Stepanian A, Delmas Y, Rondeau E, Bezieau S, Coppo P, Veyradier A; French Reference Center for Thrombotic Microangiopathies. Unexpected frequency of Upshaw-Schulman syndrome in pregnancy-onset thrombotic thrombocytopenic purpura. Blood. 2012 Jun 14;119(24):5888-97. doi: 10.1182/blood-2012-02-408914. Epub 2012 Apr 30.

Biospecimen

Retention: SAMPLES WITH DNA

March 2010

MeSH Terms

Conditions

Purpura, Thrombotic Thrombocytopenic

Condition Hierarchy (Ancestors)

Purpura, ThrombocytopenicPurpuraBlood Coagulation DisordersHematologic DiseasesHemic and Lymphatic DiseasesThrombotic MicroangiopathiesThrombocytopeniaBlood Platelet DisordersCytopeniaThrombophiliaHemorrhagePathologic ProcessesPathological Conditions, Signs and SymptomsSkin ManifestationsSigns and Symptoms

Study Officials

  • paul COPPO, MD, PhD

    Hôpital Saint Antoire, PARIS

    PRINCIPAL INVESTIGATOR
  • Elie AZOULAY, MD, PhD

    Hôpital Saint Louis Paris

    STUDY DIRECTOR
  • Benoît SCHLEMMER, MD

    Hôpital Saint Louis Paris

    STUDY DIRECTOR
  • Eric OKSENHENDLER, MD

    Hôpital Saint Louis Paris

    STUDY DIRECTOR
  • Fadi FAKHOURI, MD

    Hôpital Necker, PARIS

    STUDY DIRECTOR
  • Jean-Paul MIRA, MD, PhD

    Hôpital Cochin, PARIS

    STUDY DIRECTOR
  • Eric RONDEAU, MD

    Hôpital Tenon, PARIS

    STUDY DIRECTOR
  • Jean-paul VERNANT, MD

    Hôpital la Pitié Salpétrière, PARIS

    STUDY DIRECTOR
  • Nicolas SCHLEINITZ, MD

    CHU Conception, MARSEILLE

    STUDY DIRECTOR
  • Gilles KAPLANSKI, MD, PhD

    CHU Conception, MARSEILLE

    STUDY DIRECTOR
  • Albert BENSMAN, MD

    Hôpital Trousseau, PARIS

    STUDY DIRECTOR
  • Chantal LOIRAT, MD

    Hôpital Robert Debré, PARIS

    STUDY DIRECTOR
  • Brigitte BADER-MEUNIER, MD

    Hôpital Robert Debré, PARIS

    STUDY DIRECTOR
  • Christophe PIGUET, MD

    Hôpital Dupuytren, LIMOGES

    STUDY DIRECTOR
  • Guy PUTET, MD

    Hospices civils de LYON, LYON

    STUDY DIRECTOR
  • Béatrice DUCOT, MD

    INSERM U569 Kremlin Bicêtre, Paris

    STUDY DIRECTOR
  • Agnes VEYRADIER, MD, PhD

    Hôpital Antoine Béclère, CLAMART

    STUDY DIRECTOR
  • Thierry LEBLANC, MD

    Hôpital Saint Louis Paris

    STUDY DIRECTOR
  • Patrick NIAUDET, MD, PhD

    Hôpital Necker, PARIS

    STUDY DIRECTOR
  • Christophe RIDEL, MD

    Hôpital Tenon, PARIS

    STUDY DIRECTOR
  • Pascale POULLIN, MD

    CHU de la Conception, MARSEILLE

    STUDY DIRECTOR
  • arlos FRANGIE, MD

    Hôpital Bicêtre, LE KREMLIN BICETRE

    STUDY DIRECTOR
  • Hélène FRANCOIS, MD

    Hôpital Bicêtre, LE KREMLIN BICETRE

    STUDY DIRECTOR
  • Olivier LAMBOTTE, MD

    Hôpital Bicêtre, LE KREMLIN BICETRE

    STUDY DIRECTOR
  • Dominique BORDESSOULE, MD, PhD

    Hôpital Dupytren, LIMOGES

    STUDY DIRECTOR
  • Stéphane GIRAULT, MD

    Hôpital Dupytren, LIMOGES

    STUDY DIRECTOR
  • Hervé CHAMBOST, MD

    Hôpital de la Timone Enfants, Marseilles

    STUDY DIRECTOR
  • Pierre BORDOGONI, MD, PhD

    Hôpital de Brabois-Hôpital d'Enfants, Vandoeuvre-lès-Nancy

    STUDY DIRECTOR
  • Alexandra SALMON, MD

    Hôpital de Brabois- hôpital d'enfants, Vandoeuvre-lès-Nancy

    STUDY DIRECTOR
  • Laurence CLEMENT, MD

    Hôpital de Brabois-Hôpital d'enfants, Vandoeuvre-lès-Nancy

    STUDY DIRECTOR
  • Christian COMBE, MD, PhD

    Hôpital Pellegrin, Bordeaux

    STUDY DIRECTOR
  • Sandrine MEUNIER, MD

    Hôpital Edouard Heriot, Lyon

    STUDY DIRECTOR
  • Gwenaêlle ROUSSEY, MD

    Hôpital Hotel Dieu, Nantes

    STUDY DIRECTOR
  • Mohammed HAMIDOU, MD, PhD

    Hôpital Hotel Dieu, Nantes

    STUDY DIRECTOR
  • Bernard BONNOTTE, MD, PhD

    Hôpital du Bocage, Dijon

    STUDY DIRECTOR
  • Yves TANTER, MD

    Hôpital du Bocage, Dijon

    STUDY DIRECTOR
  • Jacques POURRAT, MD, PhD

    Hôpital de Rangueil, Toulouse

    STUDY DIRECTOR
  • Marie-Christine THOURET, MD

    CHU de l'Archet 2, Nice

    STUDY DIRECTOR
  • Philippe VANHILLE, MD

    CH de Valenciennes, Valenciennes

    STUDY DIRECTOR
  • Nicolas LIMAL, MD

    Hôpital Henri Mondor, Créteil

    STUDY DIRECTOR
  • Philippe REMY, MD

    Hôpital Henri Mondor, Créteil

    STUDY DIRECTOR
  • Jean-Michel KORACH, MD

    CHG Châlons-en-Champagne, Châlons-en-Champagne

    STUDY DIRECTOR
  • Carine GREIB, MD

    Hôpital Haut-Lévêque, Pesac

    STUDY DIRECTOR
  • Jean-Louis PALLOT, MD

    CHI André Grégoire, Montreuil

    STUDY DIRECTOR
  • Alain WYNCKEL, MD

    CHU de Reims, Reims

    STUDY DIRECTOR
  • Claire CAZALETS, MD

    Hôpital Sud, Rennes

    STUDY DIRECTOR
  • Bertrand DE CAGNY, MD

    CHU d'Amiens, Amiens

    STUDY DIRECTOR
  • Claire PRESNE, MD

    CHU D'Amiens, Amiens

    STUDY DIRECTOR
  • Cécile FOHRER, MD

    Hôpital de Haute-Pierre, Strasbourg

    STUDY DIRECTOR
  • Karin BILGER, MD

    Hôpital de Haute-Pierre, Strasbourg

    STUDY DIRECTOR
  • Bruno LIOURE, MD

    Hôpital de Haute-Pierre, Strasbourg

    STUDY DIRECTOR
  • Raoul HERBRECHT, MD, PhD

    Hôpital de Haute-Pierre, Strasbourg

    STUDY DIRECTOR
  • Dominique PLANTAZ, MD, PhD

    Hôpital Nord, Grenoble

    STUDY DIRECTOR
  • Hubert NIVET, MD, PhD

    Hôpital Gatien de Clovheville, Tours

    STUDY DIRECTOR
  • Emmanuel FLECK, MD

    Hôpital Saint Louis, La Rochelle

    STUDY DIRECTOR
  • Jean-Philippe COINDRE, PH

    Centre Hospitalier du Mans, LE MANS

    STUDY DIRECTOR
  • François MAURIER, PH

    Hôpital Sainte-Blandine Service de Médecine Interne, METZ

    STUDY DIRECTOR
  • Mario OJEDA-URIBE, PH

    Centre Hospitalier Régional de MULHOUSE Hôpital Edouard Muller, Département d'Hématologie, Unité de thérapie cellulaire et greffes, MULHOUSE

    STUDY DIRECTOR
  • Christophe RIDEL, PH

    Hôpital Tenon, Service de Néphrologie et de Transplantation rénale, PARIS

    STUDY DIRECTOR
  • François BRIVET, PH

    Hôpital Antoine Béclère, Service de réanimation médicale, CLAMART

    STUDY DIRECTOR
  • Sylvain LAVOUÉ, PH

    CHU Pontchaillou, Service de maladies infectieuses et réanimation médicale, RENNES

    STUDY DIRECTOR
  • Sébastien CANET, PH

    Centre Hospitalier de Perpignan, Hôpital Saint-Jean, Service de Néphrologie, Hémodialyse, PERPIGNAN

    STUDY DIRECTOR
  • François PROVOT, PH

    Centre Hospitalier Régional Universitaire de Lille, Hôpital Calmette, Pôle de Néphrologie, LILLE

    STUDY DIRECTOR
  • Claude GUYOT, PH

    CHU de Nantes, Hôpital de jour et d'Hémodialyse pédiatrique

    STUDY DIRECTOR
  • Xavier BELENFANT, PH

    CHI André Grégoire de Montreuil, Service de Néphrologie, Diabète et Dialyse, MONTREUIL

    STUDY DIRECTOR
  • Laurent PERARD, PH

    Hôpital Edouard Herriot, Service de Médecine Interne, LYON

    STUDY DIRECTOR
  • Edouard DEVAUD, PH

    CHR de Pontoise Hôpital René Dubos, Service de Médecine Interne- Néphrologie- Dialyse, PONTOISE

    STUDY DIRECTOR
  • Arnaud BUFFIN, PH

    CH CHAMBERY, Service de Pédiatrie, CHAMBERY

    STUDY DIRECTOR
  • Tarik KANOUNI, PH

    CHU Montpellier Hôpital Lapeyronie, Service d'Hématologie et Oncologie médicale, MONTPELLIER

    STUDY DIRECTOR
  • Nicolas GAMBIER, PH

    Hôpital Avicenne, Service de Médecine Interne, BOBIGNY

    STUDY DIRECTOR
  • Alain DEVIDAS, PH

    CH Sud-Francilien- Hôpital Gilles de Corbeil, Service d'Hématologie Clinique, CORBEIL-ESSONNES

    STUDY DIRECTOR
  • Laure FEDERICI, PH

    CH Colmar- Hôpital Pasteur, Service de Médecine Interne, COLMAR

    STUDY DIRECTOR
  • Michel FOULARD, PH

    CHRU de Lille- Hôpital Jeanne de Flandre, Service de Néphrologie pédiatrique, LILLE

    STUDY DIRECTOR
  • Serge BOLOGNA, PH

    Hôpital Brabois Adulte, Service d'Hématologie, VANDOEUVRE-LÈS-NANCYS

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 24, 2007

First Posted

January 25, 2007

Study Start

November 1, 2006

Primary Completion

March 1, 2009

Study Completion

April 1, 2011

Last Updated

December 12, 2012

Record last verified: 2011-04

Locations