Pain monitoring app leads to less pain in children with cancer at home: Results of a randomized controlled trial.

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The authors developed a pain monitoring app offering educational information, and real-time health care professional feedback on clinically significant pain (>4 numeric rating scale [NRS]-11) for children with cancer to reduce pain at home. This monocenter, nonblinded randomized controlled trial enrolled Dutch children (0-18years old) receiving cancer treatment (≥3months after diagnosis, ≥2months treatment remaining). Children were randomly assigned to use the app or receive usual care (two parallel groups). We assessed whether use of the app yielded less clinically significant pain (aim 1) and whether it affected pain severity, duration, interference, pain management strategies, and parental emotional well-being (aim 2). The app was also evaluated by families (aim 3). A total of 94 children were randomized to use the app (15 drop-outs), and 90 were to receive care as usual (11 drop-outs). The app group (n=79, mean age: 7.5 [5.1] years, 48% girls, 63% hemato-oncology diagnosis) reported significantly less clinically significant pain compared to usual care (n=79, mean age: 7.5 [5.4] years, 52% girls, 65% hemato-oncology diagnosis) (odds ratio [OR], 0.38; 95% confidence interval [CI], 0.198-0.734]) (aim 1), as well as significantly lower pain severity (β=-0.27; 95% CI, -0.407 to -0.142). No differences were found for duration, interference, or management strategies. Parents in the app group reported significantly less distress compared to usual care (β = -0.84; 95% CI, -1.61 to -0.03]) (aim 2). Families generally evaluated the app positively (aim 3). Use of the app resulted in less clinically significant pain at home. The exact working mechanisms of the app should be further elucidated.