Registry of cancer patients with thromboembolism
Official title: Observational Epidemiological Study of Cancer-associated Thrombosis: Registry of Thrombosis & NEoplasia of SEOM (TESEO Study)
Run by Fundación Sociedad Española de Oncologia Médica · NCT03855592 · Data updated 2026-11-12
This study is looking to gather information on adults with cancer who have had blood clots to better understand how cancer and blood clots are connected.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 700 (estimated) |
| Sponsor | Fundación Sociedad Española de Oncologia Médica Academic / other |
| Locations | 48 sites (Alcoy, Alicante and 47 other locations) |
| Status | Recruiting |
| Started | July 4, 2018 |
| Main results expected | July 2026 |
| Study ends | July 2026 |
| Registry record updated | May 16, 2025 |
| Trial ID | NCT03855592 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults over 18 with a confirmed diagnosis of cancer who have experienced a thromboembolic event.
✕Probably not a fit
Patients without a confirmed thromboembolic event or those with superficial thrombophlebitis alone will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to collect data on patients diagnosed with cancer who experience venous or arterial thromboembolic events either prior to or following their cancer diagnosis. It is a multicentric study that will document these occurrences to better understand the relationship between cancer and thromboembolism. Patients over 18 years old with a confirmed malignant tumor and a documented thromboembolic episode will be included. The study will utilize imaging techniques for confirmation of thromboembolic events.
Why it matters
Potential benefit: If successful, this study could enhance understanding of thromboembolism in cancer patients, potentially leading to improved management and treatment strategies.
How similar studies have gone: While this study is observational and builds on existing knowledge, similar studies have shown the importance of understanding thromboembolic events in cancer patients, indicating potential for valuable insights.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Over 18 years of age with a histologically confirmed diagnosis of malignant tumor. * Venous or arterial thromboembolism episode, symptomatic or incidental, in the month prior or any time after the cancer diagnosis and in the three previous months to enrollment, confirmed with an imaging technique: Doppler echocardiography, computed tomography (CT) angiography, etc. * Signing of informed consent. Exclusion Criteria: * Clinical diagnosis of thromboembolic event without radiological confirmation. * Presenting a single episode of superficial thrombophlebitis without association with another thromboembolic event. * Each patient will be recorded just once, and therefore a second thromboembolic event will be considered a rethrombosis and will be recorded as such. Patients with a rethrombosis and a previous thromboembolic event before the start of the study in each center will not be able to be included.
Where it's running
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Hospital Virgen de los Lirios
Alcoy, Alicante, Spain Recruiting -
Hospital Universitario de Torrevieja
Elche, Alicante, Spain Recruiting -
Hospital Son Espases
Palma, Balearic Islands, Spain Recruiting -
Institut Català D'Oncologia (ICO) L'Hospitalet
L'Hospitalet de Llobregat, Barcelona, Spain Recruiting -
Hospital Universitari Parc Taulí
Sabadell, Barcelona, Spain Recruiting -
Hospital De Sant Joan Despi Moissès Broggi
Sant Joan Despí, Barcelona, Spain Recruiting
Show 42 more locations
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Hospital Universitario Marqués de Valdecilla
Santander, Cantabria, Spain Recruiting -
Hospital de Especialidades de Jerez de la Frontera
Jerez de la Frontera, Cádiz, Spain Recruiting -
Complejo Hospitalario Univ. de Santiago
Santiago de Compostela, La Coruña, Spain Recruiting -
Hospital de Fuenlabrada
Fuenlabrada, Madrid, Spain Recruiting -
Hospital Universitario de Móstoles
Móstoles, Madrid, Spain Recruiting -
Hospital Infanta Cristina
Parla, Madrid, Spain Recruiting -
Complejo Hospitalario de Navarra
Pamplona, Navarre, Spain Recruiting -
Hospital Universitario Central de Asturias
Oviedo, Principality of Asturias, Spain Recruiting -
Complejo Hospitalario Universitario de A Coruña
A Coruña, Spain Recruiting -
Hospital Universitario San Juan de Alicante
Alicante, Spain Recruiting -
Hospital Univesitario Torrecárdenas
Almería, Spain Recruiting -
Complejo Hospitalario Universitario de Badajoz
Badajoz, Spain Recruiting -
Hospital Clínic Barcelona
Barcelona, Spain Recruiting -
Hospital de Barcelona
Barcelona, Spain Recruiting -
Hospital Universitario Vall d'Hebron
Barcelona, Spain Recruiting -
Hospital de Basurto
Bilbao, Spain Recruiting -
Hospital Universitario San Pedro de Alcántara
Cáceres, Spain Recruiting -
Hospital General Universitario de Ciudad Real
Ciudad Real, Spain Recruiting -
Hospital Universitario Reina Sofía
Córdoba, Spain Recruiting -
Hospital General Virgen de la Luz
Cuenca, Spain Recruiting -
Hospital General Universitario de Elche
Elche, Spain Recruiting -
Hospital Universitari Dr. Josep Trueta/Institut Català D'Oncología Girona
Girona, Spain Recruiting -
Hospital Universitario de Jaén
Jaén, Spain Recruiting -
Hospital Universitario Insular de Gran Canaria
Las Palmas de Gran Canaria, Spain Recruiting -
Hospital Universitario Lucus Augusti
Lugo, Spain Recruiting -
Hospital Central de la Defensa Gómez Ulla
Madrid, Spain Recruiting -
Hospital Fundación Jimenez Díaz
Madrid, Spain Recruiting -
Hospital MD Anderson Cancer Center Madrid
Madrid, Spain Recruiting -
Hospital Universitario 12 de Octubre
Madrid, Spain Recruiting -
Hospital Universitario Clínico San Carlos
Madrid, Spain Recruiting -
Hospital Universitario Gregorio Marañón
Madrid, Spain Recruiting -
Hospital Universitario Infanta Leonor
Madrid, Spain Recruiting -
Hospital Universitario La Paz
Madrid, Spain Recruiting -
Hospital Universitario la Princesa
Madrid, Spain Recruiting -
Hospital Universitario Ramón y Cajal
Madrid, Spain Recruiting -
Hospital Universitario Morales Meseguer
Murcia, Spain Recruiting -
Hospital Universitario Infanta Sofía
San Sebastián de los Reyes, Spain Recruiting -
Oncoavanze
Seville, Spain Recruiting -
Consorcio Hospital General Universitario de Valencia
Valencia, Spain Recruiting -
Hospital Clínico Universitario de Valencia
Valencia, Spain Recruiting -
Hospital Universitari i Politècnic La Fe
Valencia, Spain Recruiting -
Hospital Álvaro Cunqueiro
Vigo, Spain Recruiting
Study contacts
- Study coordinator: Andres Muñoz, M.D.
- Email: investigacion@mfar.net
- Phone: +34 93 434 44 12
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.