36-month clinical outcomes of patients with venous thromboembolism: GARFIELD-VTE
Alexander G.G. Turpie, Alfredo E. Farjat, Sylvia Haas, Walter Ageno, Jeffrey I. Weitz, Samuel Z. Goldhaber, Shinya Goto, Pantep Angchaisuksiri, Gloria Kayani, Renato D. Lópes, Chern‐En Chiang, Harry Gibbs, Eric Tse, Peter Verhamme, Hugo Ten Cate, Juan Muntaner, Sebastian Schellong, Henri Bounameaux, Paolo Prandoni, Uma Maheshwari, Ajay K. Kakkar, A. Loualidi, Abdürrahim Çolak, Abraham F. Bezuidenhout, A.T.O. Abdool-Carrim, Addala Azeddine, Adriaan Beyers, A Dees, Ahmed Mohamed, Ahmet Aksoy, Akihiko Abiko, Akinori Watanabe, Alan Krichell, Alberto Alfredo Fernandez, Alberto Tosetto, Alexey Khotuntsov, Alisha Oropallo, Alison Slocombe, Allan Kelly, Amanda Clark, Amr Gad, Amy Arouni, Andor Schmidt, Andrea Berni, Andres Javier Kleiban, A Machowski, Andrey Kazakov, Ángel Gálvez, Ann Lockman, Anna Falanga, Anoop Chauhan, Antoni Riera‐Mestre, Antonino Mazzone, Armando D’Angelo, Artur Haddad Herdy, Atsushi Kato, Ayman Abd Elhamid Ebrahim Mahmoud Salem, Azlan Husin, Barbara Erdelyi, Barry Jacobson, Beatrice Amann‐Vesti, Bektaş Battaloǧlu, Benedicte Wilson, Benilde Cosmi, Bergmann Jean Francois, Berremeli Toufek, Beverley Hunt, Bhavesh Natha, Bisher Mustafa, Bonnie Chi Shan Kho, Boulon Carine, Brian Zidel, Brisot Dominique, Brousse Christophe, Bruno Trimarco, Canhua Luo, Carlos Alberto Cuneo, Carlos Jerjes Sanchez Diaz, Carsten Schwencke, Cas Cader, Celal Yavuz, Cesar Javier Zaidman, Charles A. Lunn, Chau‐Chung Wu, Cheng Hock Toh, Chern‐En Chiang, Chevrier Elisa, Chien‐Hsun Hsia, Chien-Lung Huang, Chi‐Hang Kevin Kwok, Chih-Cheng Wu, Chi‐Hung Huang, Chris Ward, Christian Opitz, Christina Jeanneret‐Gris, Chung Yin Ha, Chun‐Yao Huang, Claude Luyeye Bidi, Clifford Smith, Cornelia Brauer
Abstract
BACKGROUND: Venous thromboembolism (VTE), encompassing both deep vein thrombosis (DVT) and pulmonary embolism (PE), is a leading cause of morbidity and mortality worldwide. METHODS: GARFIELD-VTE is a prospective, non-interventional observational study of real-world treatment practices. We aimed to capture the 36-month clinical outcomes of 10,679 patients with objectively confirmed VTE enrolled between May 2014 and January 2017 from 415 sites in 28 countries. FINDINGS: A total of 6582 (61.6 %) patients had DVT alone, 4097 (38.4 %) had PE ± DVT. At baseline, 98.1 % of patients received anticoagulation (AC) with or without other modalities of therapy. The proportion of patients on AC therapy decreased over time: 87.6 % at 3 months, 73.0 % at 6 months, 54.2 % at 12 months and 42.0 % at 36 months. At 12-months follow-up, the incidences (95 % confidence interval [CI]) of all-cause mortality, recurrent VTE and major bleeding were 6.5 (7.0-8.1), 5.4 (4.9-5.9) and 2.7 (2.4-3.0) per 100 person-years, respectively. At 36-months, these decreased to 4.4 (4.2-4.7), 3.5 (3.2-2.7) and 1.4 (1.3-1.6) per 100 person-years, respectively. Over 36-months, the rate of all-cause mortality and major bleeds were highest in patients treated with parenteral therapy (PAR) versus oral anti-coagulants (OAC) and no OAC, and the rate of recurrent VTE was highest in patients on no OAC versus those on PAR and OAC. The most frequent cause of death after 36-month follow-up was cancer (n = 565, 48.6 %), followed by cardiac (n = 94, 8.1 %), and VTE (n = 38, 3.2 %). Most recurrent VTE events were DVT alone (n = 564, 63.3 %), with the remainder PE, (n = 236, 27.3 %), or PE in combination with DVT (n = 63, 7.3 %). INTERPRETATION: GARFIELD-VTE provides a global perspective of anticoagulation patterns and highlights the accumulation of events within the first 12 months after diagnosis. These findings may help identify treatment gaps for subsequent interventions to improve patient outcomes in this patient population.