These findings add to a growing body of evidence supporting a range of positive benefits from dapagliflozin, including reduced risks of mortality, cardiovascular events, and kidney events, lead author Meir Schechter, MD, PhD, of the Hebrew University of Jerusalem and colleagues wrote in Annals of Internal Medicine.“Although cardiovascular and kidney outcomes with SGLT2 inhibitors have been studied extensively, there is a paucity of data evaluating the effects of SGLT2 inhibitors on hospitalizations for any cause.”
The findings are based on a post hoc analysis of the DAPA-CKD trial, which involved 4,304 patients with CKD in 21 countries. Patients were randomized in a 1:1 ratio to receive dapagliflozin 10 mg orally once a day or matching placebo. The present analysis quantified first hospitalizations for any cause, all hospitalizations, cause-specific hospitalizations, and several related outcomes.
After a median follow-up of 2.4 years, 28% of the population had been hospitalized a total of 2,072 times.
Compared with placebo, dapagliflozin significantly reduced risk of first hospitalization by 16% (hazard ratio, 0.84; 95% confidence interval, 0.75-0.94) and rate of all hospitalizations by 21% (rate ratio, 0.79; 95% CI, 0.70-0.89). These findings remained significant regardless of type 2 diabetes status, with significant benefits seen across reasons for admission, including renal/urinary disorders, cardiac disorders, neoplasms, and metabolism/nutrition disorders. In addition, dapagliflozin was associated with shorter mean time in hospital (2.3 vs. 2.8 days; P = .027) and longer time alive and out of hospital (354.9 vs. 351.7; P = .023).
“These findings highlight additional benefits of dapagliflozin beyond those seen for cardiovascular and kidney events, all-cause and cause-specific mortality, eGFR [estimated glomerular filtration rate] slope, and albuminuria and should be considered when evaluating the totality of evidence favoring provision of dapagliflozin to patients with CKD,” the investigators concluded.
Positive data, positive experiences
Shree Mulay, MD, a nephrologist in private practice in western Tennessee, said this study is “one of several other articles that already exist” demonstrating the broad benefits of SGLT2 inhibitors.
“The evidence is pretty substantial,” Dr. Mulay said in an interview. “I think SGLT2 inhibitors are the new statin of this era. ... I won’t be surprised if in the next year or 2 or 3 they truly become the standard of care.”
Dr. Mulay also speaks from experience working in both the chronic and acute setting, where he’s observed “some magical stuff happening” in patients started on SGLT2 inhibitors, especially those in heart failure who are fluid overloaded.
“It’s phenomenal stuff,” Dr. Mulay said. “You can really stabilize patients’ hemodynamics.”
In the private health care setting, he described widespread enthusiasm among nephrologists, although others still appear skeptical.
“It’s really our cardiology colleagues that I feel are underprescribing it,” Dr. Mulay said. “So, I’m kind of taking it on myself, when I see a heart failure patient, to go ahead and put them on this.”
It’s unclear why some cardiologists seem apprehensive, Dr. Mulay continued, although he suggested that unclear guidelines and a lack of first-hand experience may be to blame.