NCT03647254

Brief Summary

Background: Oral anticoagulant drugs represent an essential tool in thrombo-embolic events prevention. Most used are vitamin K antagonists (VKA), which plasma level is monitored measuring prothrombin time using the International Normalized Ratio. If it takes values out of recommended range, the patient will have a higher risk of suffering from thromboembolic or hemorrhagic complications. Previous researches have shown that, at best, only 33% of total patients keep values on therapeutic level. The investigators intend to improve International Normalized Ratio control figures by a joint didactic intervention based on Junta de Andalucía School for Patients method that will be practiced by anticoagulated patients themselves. Methods: A randomized clinical trial was carried out at primary care centers from one healthcare area in Malaga (Andalusia, Spain). Study population: patients included on oral anticoagulant therapy program using vitamin K antagonists. First step: detection of patients on oral anticoagulation program with International Normalized Ratio on therapeutic level during 65% or less over total time. Second step: patients with inappropriate International Normalized Ratio control were practiced a joint didactic intervention "from peer to peer", by a previously trained and expert anticoagulated patient. Study variables: time on therapeutic levels before and after intervention, sociodemographic variables, vital signs, existence of cardiovascular risk factors, basic blood test, other prescribed drugs, accompanying diseases and social support. Almost-experimental analytic study with before-after statistical analysis of the intervention. Lineal regression models were applied on main variables results (International Normalized Ratio value, time on therapeutic level) inputting sociodemographic variables, accompanying diseases and social support.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2018

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

August 8, 2018

Completed
19 days until next milestone

First Posted

Study publicly available on registry

August 27, 2018

Completed
5 days until next milestone

Study Start

First participant enrolled

September 1, 2018

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2020

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2021

Completed
Last Updated

September 27, 2018

Status Verified

September 1, 2018

Enrollment Period

2.3 years

First QC Date

August 8, 2018

Last Update Submit

September 25, 2018

Conditions

Keywords

AnticoagulantsWarfarin

Outcome Measures

Primary Outcomes (1)

  • Time on INR therapeutic levels in the last six months receiving VKA treatment

    Appropriate INR level control will be assessed in two ways: measuring the therapeutic INR values percentages or Time percentages in therapeutic values estimated using Rosendaal method

    Six months

Secondary Outcomes (25)

  • Sociodemographic

    Six months

  • Body mass index (BMI)

    0 and 12 months.

  • Diastolic and systolic blood pressure

    0 and 12 months.

  • Heart rate

    0 and 12 months.

  • Smoking habit

    0 and 12 months.

  • +20 more secondary outcomes

Study Arms (2)

Patient Education Group

EXPERIMENTAL

A group educational intervention was practiced to half of the patients, by one expert patient, so that every patient must attend to one group meeting and they continued with their usual controls

Behavioral: Patient education group

Control group

NO INTERVENTION

Control group performed usual clinical practice, that is, people will be schedule by nurses about one time per month, except cases in which controls are inappropriate.

Interventions

Group meetings with educational sessions will be organised in health center. A group educational intervention was practiced to half of the patients, by one expert patient, so that every patient must attend to one group meeting

Also known as: Control group
Patient Education Group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients on VKA treatment for at least the last six months in primary care environment.
  • Patients on inappropriate INR level control.
  • Patients in whom we have access to, at least, 80% of their INR levels. controls in last six months of treatment with VKA, although they are enrolled in another primary care center.
  • Patients who have given written informed consent to take part in the study

You may not qualify if:

  • Patients suffering from cognitive impairment wich prevents understanding what was written in the information sheet and informed consent.
  • Limited mobility patients, terminal patients, alcoholism or drug addiction, severe psychiatric illness or any other reason which makes patients to be present at center´s meetings imposible.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Distrito Sanitario Málaga. Servicio Andaluz de Salud

Málaga, 29009, Spain

RECRUITING

Related Publications (26)

  • Ageno W, Gallus AS, Wittkowsky A, Crowther M, Hylek EM, Palareti G. Oral anticoagulant therapy: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest. 2012 Feb;141(2 Suppl):e44S-e88S. doi: 10.1378/chest.11-2292.

    PMID: 22315269BACKGROUND
  • Oden A, Fahlen M, Hart RG. Optimal INR for prevention of stroke and death in atrial fibrillation: a critical appraisal. Thromb Res. 2006;117(5):493-9. doi: 10.1016/j.thromres.2004.11.025. Epub 2004 Dec 25.

    PMID: 16517250BACKGROUND
  • Hart RG, Pearce LA, Aguilar MI. Meta-analysis: antithrombotic therapy to prevent stroke in patients who have nonvalvular atrial fibrillation. Ann Intern Med. 2007 Jun 19;146(12):857-67. doi: 10.7326/0003-4819-146-12-200706190-00007.

    PMID: 17577005BACKGROUND
  • Wan Y, Heneghan C, Perera R, Roberts N, Hollowell J, Glasziou P, Bankhead C, Xu Y. Anticoagulation control and prediction of adverse events in patients with atrial fibrillation: a systematic review. Circ Cardiovasc Qual Outcomes. 2008 Nov;1(2):84-91. doi: 10.1161/CIRCOUTCOMES.108.796185. Epub 2008 Nov 5.

    PMID: 20031794BACKGROUND
  • Perk J, De Backer G, Gohlke H, Graham I, Reiner Z, Verschuren M, Albus C, Benlian P, Boysen G, Cifkova R, Deaton C, Ebrahim S, Fisher M, Germano G, Hobbs R, Hoes A, Karadeniz S, Mezzani A, Prescott E, Ryden L, Scherer M, Syvanne M, Scholte op Reimer WJ, Vrints C, Wood D, Zamorano JL, Zannad F; European Association for Cardiovascular Prevention & Rehabilitation (EACPR); ESC Committee for Practice Guidelines (CPG). European Guidelines on cardiovascular disease prevention in clinical practice (version 2012). The Fifth Joint Task Force of the European Society of Cardiology and Other Societies on Cardiovascular Disease Prevention in Clinical Practice (constituted by representatives of nine societies and by invited experts). Eur Heart J. 2012 Jul;33(13):1635-701. doi: 10.1093/eurheartj/ehs092. Epub 2012 May 3. No abstract available.

    PMID: 22555213BACKGROUND
  • Wolowacz SE, Samuel M, Brennan VK, Jasso-Mosqueda JG, Van Gelder IC. The cost of illness of atrial fibrillation: a systematic review of the recent literature. Europace. 2011 Oct;13(10):1375-85. doi: 10.1093/europace/eur194. Epub 2011 Jul 14.

    PMID: 21757483BACKGROUND
  • Gomez-Doblas JJ, Muniz J, Martin JJ, Rodriguez-Roca G, Lobos JM, Awamleh P, Permanyer-Miralda G, Chorro FJ, Anguita M, Roig E; OFRECE study collaborators. Prevalence of atrial fibrillation in Spain. OFRECE study results. Rev Esp Cardiol (Engl Ed). 2014 Apr;67(4):259-69. doi: 10.1016/j.rec.2013.07.014. Epub 2013 Nov 25.

    PMID: 24774588BACKGROUND
  • Naccarelli GV, Varker H, Lin J, Schulman KL. Increasing prevalence of atrial fibrillation and flutter in the United States. Am J Cardiol. 2009 Dec 1;104(11):1534-9. doi: 10.1016/j.amjcard.2009.07.022.

    PMID: 19932788BACKGROUND
  • Robert-Ebadi H, Le Gal G, Righini M. Use of anticoagulants in elderly patients: practical recommendations. Clin Interv Aging. 2009;4:165-77. doi: 10.2147/cia.s4308. Epub 2009 May 14.

    PMID: 19503778BACKGROUND
  • Lip GY, Nieuwlaat R, Pisters R, Lane DA, Crijns HJ. Refining clinical risk stratification for predicting stroke and thromboembolism in atrial fibrillation using a novel risk factor-based approach: the euro heart survey on atrial fibrillation. Chest. 2010 Feb;137(2):263-72. doi: 10.1378/chest.09-1584. Epub 2009 Sep 17.

    PMID: 19762550BACKGROUND
  • Olesen JB, Lip GY, Hansen ML, Hansen PR, Tolstrup JS, Lindhardsen J, Selmer C, Ahlehoff O, Olsen AM, Gislason GH, Torp-Pedersen C. Validation of risk stratification schemes for predicting stroke and thromboembolism in patients with atrial fibrillation: nationwide cohort study. BMJ. 2011 Jan 31;342:d124. doi: 10.1136/bmj.d124.

    PMID: 21282258BACKGROUND
  • European Heart Rhythm Association; European Association for Cardio-Thoracic Surgery; Camm AJ, Kirchhof P, Lip GY, Schotten U, Savelieva I, Ernst S, Van Gelder IC, Al-Attar N, Hindricks G, Prendergast B, Heidbuchel H, Alfieri O, Angelini A, Atar D, Colonna P, De Caterina R, De Sutter J, Goette A, Gorenek B, Heldal M, Hohloser SH, Kolh P, Le Heuzey JY, Ponikowski P, Rutten FH. Guidelines for the management of atrial fibrillation: the Task Force for the Management of Atrial Fibrillation of the European Society of Cardiology (ESC). Eur Heart J. 2010 Oct;31(19):2369-429. doi: 10.1093/eurheartj/ehq278. Epub 2010 Aug 29. No abstract available.

    PMID: 20802247BACKGROUND
  • Steinberg BA, Piccini JP. Anticoagulation in atrial fibrillation. BMJ. 2014 Apr 14;348:g2116. doi: 10.1136/bmj.g2116.

    PMID: 24733535BACKGROUND
  • Riley RS, Rowe D, Fisher LM. Clinical utilization of the international normalized ratio (INR). J Clin Lab Anal. 2000;14(3):101-14. doi: 10.1002/(sici)1098-2825(2000)14:33.0.co;2-a.

    PMID: 10797608BACKGROUND
  • Cardenas Valladolid J, Mena Mateo J, Canada Dorado MM, Rodriguez Morales D, Sanchez Perruca L. [Implementation and improvement in a care program for the elderly on multiple medications in a primary care area]. Rev Calid Asist. 2009 Feb;24(1):24-31. doi: 10.1016/S1134-282X(09)70072-7. Epub 2009 Feb 23. Spanish.

    PMID: 19369139BACKGROUND
  • Clarkesmith DE, Pattison HM, Lane DA. Educational and behavioural interventions for anticoagulant therapy in patients with atrial fibrillation. Cochrane Database Syst Rev. 2013 Jun 4;(6):CD008600. doi: 10.1002/14651858.CD008600.pub2.

    PMID: 23736948BACKGROUND
  • Lobos-Bejarano JM, del Castillo-Rodriguez JC, Mena-Gonzalez A, Aleman-Sanchez JJ, Cabrera de Leon A, Baron-Esquivias G, Pastor-Fuentes A; en nombre de los Investigadores del Estudio FIATE (Situacion actual de la FIbrilacion auricular en ATencion primaria en Espana). [Patients' characteristics and clinical management of atrial fibrillation in primary healthcare in Spain: FIATE Study]. Med Clin (Barc). 2013 Oct 5;141(7):279-86. doi: 10.1016/j.medcli.2012.12.023. Epub 2013 May 15. Spanish.

    PMID: 23683967BACKGROUND
  • Gallagher AM, Setakis E, Plumb JM, Clemens A, van Staa TP. Risks of stroke and mortality associated with suboptimal anticoagulation in atrial fibrillation patients. Thromb Haemost. 2011 Nov;106(5):968-77. doi: 10.1160/TH11-05-0353. Epub 2011 Sep 8.

    PMID: 21901239BACKGROUND
  • Han SY, Palmeri ST, Broderick SH, Hasselblad V, Rendall D, Stevens S, Tenaglia A, Velazquez E, Whellan D, Wagner G, Heitner JF. Quality of anticoagulation with warfarin in patients with nonvalvular atrial fibrillation in the community setting. J Electrocardiol. 2013 Jan-Feb;46(1):45-50. doi: 10.1016/j.jelectrocard.2012.08.011. Epub 2012 Oct 11.

    PMID: 23063241BACKGROUND
  • Barrios V, Escobar C, Prieto L, Osorio G, Polo J, Lobos JM, Vargas D, Garcia N. Anticoagulation Control in Patients With Nonvalvular Atrial Fibrillation Attended at Primary Care Centers in Spain: The PAULA Study. Rev Esp Cardiol (Engl Ed). 2015 Sep;68(9):769-76. doi: 10.1016/j.rec.2015.04.017. Epub 2015 Jul 11.

    PMID: 26169326BACKGROUND
  • Cinza Sanjurjo S, Rey Aldana D, Gestal Pereira E, Calvo Gomez C; ANFAGAL (ANticoagulacion en pacientes con Fibrilacion Auricular en ambito de atencion primaria de GALicia) study. Degree of Anticoagulation Control in Patients With Atrial Fibrillation in Spain: Need to Minimize Biases and Contextualize Results. Response by Cinza Sanjurjo et al. Rev Esp Cardiol (Engl Ed). 2016 Mar;69(3):357-8. doi: 10.1016/j.rec.2015.12.005. Epub 2016 Jan 30. No abstract available.

    PMID: 26839056BACKGROUND
  • Rosendaal FR, Cannegieter SC, van der Meer FJ, Briet E. A method to determine the optimal intensity of oral anticoagulant therapy. Thromb Haemost. 1993 Mar 1;69(3):236-9.

    PMID: 8470047BACKGROUND
  • Anguita Sanchez M, Bertomeu Martinez V, Cequier Fillat A; CALIFA study researchers. Quality of Vitamin K Antagonist Anticoagulation in Spain: Prevalence of Poor Control and Associated Factors. Rev Esp Cardiol (Engl Ed). 2015 Sep;68(9):761-8. doi: 10.1016/j.rec.2014.11.019. Epub 2015 Mar 23.

    PMID: 25814183BACKGROUND
  • Richards T, Montori VM, Godlee F, Lapsley P, Paul D. Let the patient revolution begin. BMJ. 2013 May 14;346:f2614. doi: 10.1136/bmj.f2614. No abstract available.

    PMID: 23674136BACKGROUND
  • Nuno-Solinis R, Rodriguez-Pereira C, Pinera-Elorriaga K, Zaballa-Gonzalez I, Bikandi-Irazabal J. [Panorama of self-management initiatives in Spain]. Gac Sanit. 2013 Jul-Aug;27(4):332-7. doi: 10.1016/j.gaceta.2013.01.008. Epub 2013 Mar 5. Spanish.

    PMID: 23465729BACKGROUND
  • Ginel-Mendoza L, Hidalgo-Natera A, Reina-Gonzalez R, Poyato-Ramos R, Morales-Naranjo J, Lupianez-Perez I, Baca-Osorio A, Gutierrez-Jansen M, Fernandez-Lara MP, Lozano-Noriega D, Salgado-Carvallo U, Bandera-Garcia C, Navarro-Moya FJ. Efficacy of a joint didactic intervention using the Junta De Andalucia School for Patients method to control prothrombin time in patients taking anticoagulants: protocol for a randomized controlled trial. Trials. 2021 Jan 11;22(1):45. doi: 10.1186/s13063-020-04972-1.

Related Links

MeSH Terms

Conditions

Health Education

Interventions

Control Groups

Condition Hierarchy (Ancestors)

Adherence InterventionsMedication AdherencePatient CompliancePatient Acceptance of Health CareTreatment Adherence and ComplianceHealth BehaviorBehavior

Intervention Hierarchy (Ancestors)

Epidemiologic Research DesignEpidemiologic MethodsInvestigative TechniquesResearch DesignMethods

Study Officials

  • Francisco J Navarro Moya, Enfermera

    Servicio de salud pública de Andalucía. Málaga, España

    STUDY CHAIR

Central Study Contacts

Francisco J Navarro Moya, Enfermera

CONTACT

Leovigildo Ginel Mendoza, Médico

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Effectiveness and Research Unit Coordinator. District of Malaga. Andalusian Health Service. Spain

Study Record Dates

First Submitted

August 8, 2018

First Posted

August 27, 2018

Study Start

September 1, 2018

Primary Completion

December 31, 2020

Study Completion

September 1, 2021

Last Updated

September 27, 2018

Record last verified: 2018-09

Locations