Why the study?
To evaluate the influence of concomitant use of hormonal contraception and non-steroidal anti-inflammatory drugs on the risk of venous thromboembolism.
Does the use of NSAIDs increase the risk of venous thromboembolism in women of reproductive age using hormonal contraception?
Does the use of NSAIDs increase the risk of venous thromboembolism in women of reproductive age using hormonal contraception?
NSAID use is associated with a significantly increased risk of venous thromboembolism in women of reproductive age, particularly those concomitantly using high or medium risk hormonal contraception.
May warrant caution combining NSAIDs with high-risk hormonal contraception; leaves open whether findings should alter prescribing pending confirmation.
OBJECTIVE: To study the influence of concomitant use of hormonal contraception and non-steroidal anti-inflammatory drugs (NSAIDs) on the risk of venous thromboembolism. DESIGN: Nationwide cohort study. SETTING: Denmark through national registries. PARTICIPANTS: All 15-49 year old women living in Denmark between 1996 and 2017 with no medical history of any venous or arterial thrombotic event, cancer, thrombophilia, hysterectomy, bilateral oophorectomy, sterilisation, or infertility treatment (n=2 029 065). MAIN OUTCOME MEASURE: A first time discharge diagnosis of lower limb deep venous thrombosis or pulmonary embolism. RESULTS: Among 2.0 million women followed for 21.0 million person years, 8710 venous thromboembolic events occurred. Compared with non-use of NSAIDs, use of NSAIDs was associated with an adjusted incidence rate ratio of venous thromboembolism of 7.2 (95% confidence interval 6.0 to 8.5) in women not using hormonal contraception, 11.0 (9.6 to 12.6) in women using high risk hormonal contraception, 7.9 (5.9 to 10.6) in those using medium risk hormonal contraception, and 4.5 (2.6 to 8.1) in users of low/no risk hormonal contraception. The corresponding numbers of extra venous thromboembolic events per 100 000 women over the first week of NSAID treatment compared with non-use of NSAIDs were 4 (3 to 5) in women not using hormonal contraception, 23 (19 to 27) in women using high risk hormonal contraception, 11 (7 to 15) in those using medium risk hormonal contraception, and 3 (0 to 5) in users of low/no risk hormonal contraception. CONCLUSIONS: NSAID use was positively associated with the development of venous thromboembolism in women of reproductive age. The number of extra venous thromboembolic events with NSAID use compared with non-use was significantly larger with concomitant use of high/medium risk hormonal contraception compared with concomitant use of low/no risk hormonal contraception. Women needing both hormonal contraception and regular use of NSAIDs should be advised accordingly.
No takes yet. Share an insight, caveat, or question.
Meaidi et al. (2023) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: