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. Author manuscript; available in PMC: 2025 Dec 24.
Published in final edited form as: Sleep Med. 2025 Oct 14;136:106853. doi: 10.1016/j.sleep.2025.106853

Table 2.

Change in AHI, pAHI, body weight, and SASHB from baseline to Week 52 in this post-hoc analysis population.

Study 1
Study 2
Tirzepatide Placebo Tirzepatide Placebo

AHI (events/hr) at
 Baseline 54.3 ± 2.95 50.9 ± 3.07 45.8 ± 2.42 53.1 ± 2.62
 Week 20 31.4 ± 1.94 47.6 ± 2.00 26.5 ± 1.97 43.7 ± 2.14
 Week 52 25.1 ± 2.14 47.6 ± 2.28 18.7 ± 1.98 43.2 ± 2.19
Change in AHI (events/hr) from baseline at
 Week 20 −21.10 ± 1.94 *** −4.80 ± 2.00 * −22.60 ± 1.97 *** −5.40 ± 2.14 *
 Week 52 −27.40 ± 2 14 *** −4.80 ± 2.28 * −30.40 ± 1.98 *** −6.00 ± 2.19 **
pAHI (events/hr) at
 Baseline 45.4 ± 3.35 45.4 ± 3.38
 Week 4 39.1 ± 2.02 41.3 ± 2.11
 Week 12 33.4 ± 2.41 39.9 ± 2.51
 Week 20 26.5 ± 1.76 37.4 ± 1.73
 Week 52 23.3 ± 2.59 38.5 ± 2.56
Change in pAHI (events/hr) from baseline at
 Week 4 −6.10 ± 2.02 ** −3.90 ± 2.11 n.s.
 Week 12 −11.80 ± 2 41 *** −5.30 ± 2.51 *
 Week 20 −18.70 ± 1 76 *** −7.80 ± 1.73
 Week 52 −21.90 ± 2.59 *** −6.70 ± 2.56 *
Percent change in body weight from baseline at
 Week 4 −2.40 ± 0 17 *** −0.80 ± 0.16 −3.20 ± 0.19 *** −0.8 ± 0.19 ***
 Week 8 −4.80 ± 0.26 *** −0.80 ± 0.26 −5.80 ± 0.24 *** −1.30 ± 0.25 ***
 Week 12 −7.00 ± 0.32 *** −1.4 ± 0.32 *** −8.30 ± 0.31 *** −1.70 ± 0.32 ***
 Week 16 −9.00 ± 0 39 *** −1.70 ± 0.39 −10.40 ± 0.37 *** −2.10 ± 0.39 ***
 Week 20 −11.00 ± 0.44 *** −2.20 ± 0.45 −12.60 ± 0.44 *** −2.60 ± 0.46 ***
 Week 24 −12.80 ± 0.49 *** −2.30 ± 0.50 −14.50 ± 0.49 *** −2.30 ± 0.52 ***
 Week 36 −15.90 ± 0.59 *** −2.20 ± 0.61 −17.80 ± 0.64 *** −2.50 ± 0.68 ***
 Week 48 −17.60 ± 0.68 *** −1.90 ± 0.71 * −19.40 ± 0.72 *** −2.30 ± 0.77 **
 Week 52 −18.10 ± 0 71 *** −1.30 ± 0.73 n.s. −20.10 ± 0.73 *** −2.30 ± 0.78 **
Percent change in SASHB from baseline at
 Week 20 −49.80 ± 3.02 *** −13.70 ± 5.36 * −57.30 ± 3.65 *** −25.70 ± 6.90 **
 Week 52 −67.60 ± 2.76 *** −13.80 ± 7.88 n.s. −76.90 ± 2.71 *** −30.40 ± 9.04 **
Percent change in WatchPAT SASHB from baseline at
 Week 4 −6.90 ± 6.92 n.s. −12.50 ± 6.79 n.s.
 Week 12 −14.10 ± 6.70 n.s. −14.50 ± 7.03 n.s.
 Week 20 −33.00 ± 4.35 *** −9.00 ± 5.84 n.s.
 Week 52 −41.10 ± 5.05 *** −18.90 ± 6.90 *

AHI, change from baseline in AHI, and percent change from baseline in body weight and in SASHB are included for this post-hoc analysis population from the SURMOUNT-OSA Study 1 and Study 2. Study 1 also includes the change from baseline in pAHI and SASHB, carried out with WatchPAT 300.

Data are LSMean ± SE for AHI, pAHI, and body weight, and Estimate ± SE for SASHB, and WatchPAT SASHB.

Data are derived from a mixed-model-for-repeated-measures analysis aligned with the efficacy estimand.

*

p < 0.05

**

p ≤ 0.010

***

p ≤ 0.001 represent significant changes from baseline. N.s. = not statistically significant.

AHI = number of apnea and hypopnea events during an hour of sleep; LSMean = least-squares mean; pAHI = peripheral apnea-hypopnea index; SASHB = sleep apnea-specific hypoxic burden; SE = standard error.