Skip to main content

Table 4 Baseline levels and median changes in insulin, glucose, IGF1/IGFBP1

From: Safety and feasibility of fasting in combination with platinum-based chemotherapy

Biomarker cohort

Baseline

Median % change after 1st fast

Median % change after 2nd fast

P value

Insulin

0.35*, 0.50**

 24 h (n = 4)

6.95 (2.61, 18.55)

−56 % (−88 %, 65 %)

−48 % (−92 %, 242 %)

 48 h (n = 6)

4.86 (2.08, 11.38)

−27 % (−77 %, 131 %)

92 % (−57 %, 747 %)

 72 h (n = 7)

8.30 (4.15, 16.61)

−42 % (−73 %, 49 %)

−55 % (−85 %, 37 %)

Glucose

0.13*, 0.74**

 24 h (n = 4)

95.9 (83.8, 109.7)

3 % (−12 %, 22 %)

13 % (−4 %, 33 %)

 48 h (n = 6)

92.2 (82.6, 102.9)

14 % (−1 %, 30 %)

13 % (−4 %, 32 %)

 72 h (n = 7)

98.4 (88.9, 109.0)

−3 % (−14 %, 9 %)

−6 % (−18 %, 9 %)

IGF-1 (ng/mL)

0.32*, 0.28**

 24 h (n = 4)

242 (185, 315)

−30 % (−44 %, −12 %)

−31 % (−45 %, −13 %)

 48 h (n = 5)

177 (139, 225)

−33 % (−45 %, −18 %)

−20 % (−37 %, 1 %)

 72 h (n = 5)

163 (128, 207)

−8 % (−24 %, 13 %)

16 % (−5 %, −42 %)

IGFBP1 (ng/mL)

0.09*, 0.61v

 24 h (n = 4)

8.9 (5.7, 14)

23 % (−19 %, 87 %)

63 % (7 %, 147 %)

 48 h (n = 5)

8.8 (5.9, 13)

10 % (−24 %, 60 %)

5 % (−32 %, 63 %)

 72 h (n = 5)

3.8 (2.6, 5.7)

117 % (49 %, 215 %)

74 % (20 %, 153 %)

B-hydroxybutyrate

0.12*, 0.037**

 24 h (n = 4)

0.21 (0.13, 0.36)

−16 % (−48 %, 37 %)

−13 % (−47 %, 49 %)

 48 h (n = 5)

0.14 (0.09, 0.23)

272 % (140 %, 470 %)

82 % (9 %, 204 %)

 72 h (n = 5)

0.12 (0.08, 0.19)

181 % (81 %, 334 %)

24 % (−20 %, 92 %)

  1. These are presented only for self-reported compliant patients, and only for those with pre- and post-fasting samples available, separated by fasting duration cohort. The post-fasting blood draws were taken after 24 h of fasting in the 24 h cohort, and after 48 h of fasting in both the 48 and 72 h cohorts, and were done prior to any premedications or chemotherapy
  2. *p-value comparing changes in levels from baseline, between the 3 fasting cohorts
  3. **p-value comparing changes from baseline between the 24 h cohort compared to the 48 + 72 h cohorts combined