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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Clin Gastroenterol Hepatol. 2019 Apr 4;18(1):57–68.e5. doi: 10.1016/j.cgh.2019.03.047

Table 2:

Characteristics of Included Botulinum Toxin Injection Studies

Study (Year) Study type N Age,
years
Sex,
female
(%)
BMI,
kg/m2
(mean ±
s.d.)
Botox
Dose
Injection
Location
Pre-
T1/2, min
(mean
±s.d.)
Time of
2nd
Post-
T1/2, min
(mean±
s.d.)
Length Type of
Test
Type of Meal
Junior(2006) Prospective 12 N/A 67% 46.2 ± 4.3 Mix 140.9 ± 18.8 144.2 ± 15.1 4 Breath Solid ~270 kcal (35% fat) 1 egg, two slices white bread 5g margarine (13C Octanoic Acid)
I -200 3 52.5±6.9 200 Antrum 8 147.3±23.9 3 months 144.7 ± 26
II-200 3 46.7 ± 2.8 200 Antrum 16 144.3 ± 5.5 3 months 154.3± 16
III-300 3 43.8 ± 1.8 300 Antrum 16 134.7 ± 23.2 3 months 145.7 ± 8.7
IV-300 3 44.5 ± 1.1 300 Antrum 24 148.3 ± 31 3 months 140.7 ± 16.8
Gui (2006) RCT 14 Mix 2 Scintigraph Solid 420 kcal (28% fat) 2 eggs, 100 g bread and water
I – 133 6 46 ± 12 50% 49.4±7 133 Antrum 8 71±16.8 0.5 months 71.8±18.3
II – 200 4 43 ± 8 25% 49.4±7 200 Antrum 8 82.8±13.1 0.5 months 75.3±6.4
III- Placebo 4 34±11 50% 44.5±7.3 placebo Antrum 70.8±12.8 0.5 months 62.5±13.7
Foschi(2008) RCT 18/30 40.6±3.5 83% 44.6±1.4 200 Antrum and Fundus 83.4±3.9 2 months 101.6 ± 9.9 3 Breath Solid 378 kcal standard bun(33.3% fat) (13C Octanoic Acid)
II- Placebo 12/30 45.2±3.7 75% 44.5±7.3 Placebo 103.4±4.5 2 months 96.6 ± 5.6
Li (2012) RCT 19 35.7±10.7 52% 34.9±5.9 147.2±34.6 1 month 177.8±47.2 4 Breath Solid 260 kcal (18% fat) 50g flour, 1 egg 150 ml of water (13C OctanoicAcid)
I - 200 9 33.6±6 200 Antrum Body and Fundus 153.2±42.2 1 month 188.4±48.3
II - 300 10 36.1±6 300 Antrum Body and Fundus 141.8±27.2 1 month 168.5±46.6
Topazian (2013) RCT 45/60 49 87% 37.9 4 Scintigraphy Solid 296 kcal 35% fat egg, toast, and milk
I - 100 15 100 Antrum 0.5 months MD: 14±29
II-300 15 300 Antrum 0.5 months MD: 24±39
III- 500 15 500 Antrum 0.5 months MD: 14±27
IV- Placebo 15 Placebo Antrum 0.5 months MD: 0.8±24