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. 2020 Aug 12;22(11):1961–1975. doi: 10.1111/dom.14128

TABLE 1.

Key phase III clinical trials of IDegAsp in T2D

Study Study design Mean HbA1c Mean FPG (mmol/L) Hypoglycaemia (overall confirmed or nocturnal confirmed) Baseline characteristics
Initiation of IDegAsp (insulin‐naïve people)

BOOST JAPAN

Onishi et al. Diabetes Obes Metab 2013 21 NCT01272193

Phase III

26‐wk, open‐label, treat‐to‐target

n = 296 (Japanese)

IDegAsp OD vs. IGlar U100 OD

ETD IDegAsp/IGlar U100: −0.28% [−0.46; −0.10]95% CI; P < .01

ETD IDegAsp/IGlar U100: 0.15 [−0.29; 0.60]95% CI; P = NS

Overall:

ERR IDegAsp/IGlar U100 0.73 [0.50; 1.08]95% CI; P = NS

Nocturnal:

ERR IDegAsp/IGlar U100 0.75 [0.34; 1.64]95% CI; P = NS

Duration of diabetes, mean years (SD) IDegAsp: 10.9 (7.3) IGlar U100: 12.4 (8.6)

Baseline HbA1c, mean % (SD) IDegAsp: 8.3% (0.8) IGlar U100: 8.5% (08)

Pretrial concomitant therapies: any OAD

In‐trial concomitant therapies:

≤2 OADs; SU, DPP‐4i, glinides discontinued

START TWICE DAILY

Franek et al. Diabetic Med 2016 23 NCT01513590

Phase IIIb

26‐wk, open‐label, parallel‐group, treat‐to‐target

n = 394

IDegAsp BID vs. BIAsp 30 BID

ETD

IDegAsp/BIAsp 30: 0.02% [−0.12; 0.17]95% CI

ETD IDegAsp/BIAsp 30 BID: −1.00 mmol/L [−1.4; −0.6]95% CI; P < .001

Overall: ERR IDegAsp/BIAsp 30: 0.46 [0.35; 0.61]95% CI; P < .001

Nocturnal: ERR IDegAsp/BIAsp 30: 0.25 [0.16; 0.38]95% CI; P < .001

Duration of diabetes, mean years (SD) IDegAsp: 9.6 (6.1) BIAsp 30: 9.4 (5.7)

Baseline HbA1c, mean % (SD) IDegAsp: 8.5% (0.8) BIAsp 30: 8.3% (0.7)

Pretrial concomitant therapies: metformin ± one other OAD

In‐trial concomitant therapies: metformin alone

Kumar et al. PLoS One 2016 24 NCT01045707 [core] NCT01169766 [ext]

Phase III

26‐wk core trial; 26‐wk extension; open‐label, parallel‐group, treat‐to‐target

n = 530

IDegAsp OD vs. IGlar U100 OD

ETD IDegAsp/IGlar U100: –0.08% [−0.26; 0.09]95% CI; P = NS*

ETD IDegAsp/IGlar U100: 0.28 [−0.14; 0.69]95% CI at week 52

Overall: ERR IDegAsp/IGlar U100: 1.86 [1.42; 2.44]95% CI; P < .0001

Nocturnal: ERR IDegAsp/IGlar U100: 0.25 [0.14; 0.47]95% CI; P < .0001

Core study phase

Duration of diabetes, mean years (SD) IDegAsp: 8.7 (6.1) IGlar U100: 9.6 (6.1)

Baseline HbA1c, mean % (SD) IDegAsp: 8.9% (1.0) IGlar U100: 8.9% (0.9)

Pretrial permitted therapies: metformin and one other OAD

In‐trial concomitant therapies: metformin alone

SIMPLE USE

Park et al. Diabetic Med 2017 26 NCT01365507

Phase IIIb

26‐wk, open‐label, parallel‐group, treat‐to‐target

n = 276

IDegAsp OD titrated Q2W using simple algorithm vs. IDegAsp OD titrated OW using step‐wise algorithm

ETD IDegAspSimple/Stepwise: −0.2% [−0.4; 0.02]95% CI

ETD IDegAspSimple/Stepwise: −0.4 [−0.9; 0.09]95% CI

Overall

ERR IDegAspSimple/Stepwise: 1.8 [1.1; 2.9]95% CI

Nocturnal ERR IDegAspSimple/Stepwise: 1.1 [0.5; 2.4]95% CI

Duration of diabetes, mean years (SD) IDegAspSimple: 10.1 (6.5) IDegAspStepwise: 10.2 (6.5)

Baseline HbA1c, mean % (SD) IDegAspSimple: 8.3% (0.8) IDegAspStepwise: 8.2% (0.8)

Pretrial therapies:

Metformin +1 or 2 other OADs (inc. SU/glinide, DPP‐4‐i, α‐glucosidase inhibitor, SGLT2i)

In‐trial therapies:

metformin alone

Intensification from basal or premixed insulin to IDegAsp

Step‐by‐Step intensification trial

Philis‐Tsimikas et al. Diabetes Res Clin Pract 2019 27 NCT02906917

Phase III

38‐wk, open‐label, treat‐to‐target

n = 532 Inadequately controlled on basal insulin ± OADs

IDegAsp OD vs. IGlar U100 OD + IAsp OD for 26 wk then IDegAsp OD/BID vs. IGlar U100 OD + IAsp OD/BID/TID, for 12 wk

Weeks 0–26 ETD IDegAsp/IGlar U100: 0.07% [−0.06; 0.21]95% CI

Weeks 0–38 ETD IDegAsp/IGlar U100: 0.09 [−0.04; 0.22]95% CI

Weeks 0–26 ETD IDegAsp/IGlar U100: 0.04 [−0.34; 0.42]95% CI

Weeks 0–38 ETD IDegAsp/IGlar U100: −0.24 [−0.60; 0.13]95% CI

Overall:

Weeks 0–26 ERR IDegAsp/IGlar U100: 0.90 [0.67; 1.22]95% CI

Weeks 0–38: ERR IDegAsp/IGlar U100: 0.86 [0.65; 1.14]95% CI

Nocturnal

Weeks 0–26: ERR 0.55 [0.34; 0.90]95% CI

Weeks 0–38: ERR 0.61 [0.40; 0.93]95% CI

Duration of diabetes, mean years (SD) IDegAsp: 12.9 (6.9) IGlar U100: 13.0 (6.5)

Baseline HbA1c, mean % (SD) IDegAsp: 8.2% (0.8) IGlar U100: 8.1% (0.7)

Pretrial therapies: Basal insulin ± other OADs (biguanide, SU, glinide, DPP‐4i, α‐glucosidase inhibitor, SGLT‐2i)

In‐trial concomitant therapies: SU/glinide discontinued

INTENSIFY ALL

Kaneko et al. Diabetes Res Clin Pract 2015 20 NCT01059812

Phase III

26‐wk, open‐label, treat‐to‐target

n = 424 (Asian) Inadequately controlled on basal or premixed insulin ± metformin

IDegAsp BID vs. BIAsp 30 BID

ETD IDegAsp/BIAsp 30: 0.05% [−0.10; 0.20]95% CI

ETD IDegAsp/BIAsp 30: −1.06 [−1.43; −0.70]95% CI; P < .001

Overall

ERR IDegAsp/BIAsp 30: 1.00 [0.76; 1.32]95% CI; P = NS

Nocturnal ERR IDegAsp/BIAsp 30: 0.67 [0.43; 1.06]95% CI; P = NS

Duration of diabetes, mean years (SD) IDegAsp: 16.3 (7.9) BIAsp 30: 16.3 (8.2)

Baseline HbA1c, mean % (SD) IDegAsp: 8.4% (0.8) BIAsp 30: 8.4% (0.9)

Pretrial therapies: Basal, premixed or self‐mixed insulin ± metformin

In‐trial concomitant therapies: metformin only

Kumar et al. Diabetic Med 2017 25 NCT01045447

Phase III

26‐wk, open‐label, treat‐to‐target

n = 465

IDegAsp OD vs. IGlar U100 OD

ETD IDegAsp/IGlar U100: −0.03% [−0.20; 0.14]95% CI; P = NS

ETD IDegAsp/IGlar U100: 0.33 [−0.11; 0.77]95% CI; P = NS

Overall

ERR IDegAsp/IGlar U100: 1.43 [1.07; 1.92]95% CI; P < .05

Nocturnal ERR IDegAsp/IGlar U100: 0.80 [0.49; 1.30]95% CI; P = NS

Duration of diabetes, mean years (SD) IDegAsp: 11.6 (6.8) IGlar U100: 11.4 (7.3)

Baseline HbA1c, mean % (SD) IDegAsp: 8.3% (0.8) IGlar U100: 8.4% (1.0)

Pretrial therapies: Basal insulin (IGlar U100; IDet; NPH insulin) + metformin ± other OADs

In‐trial concomitant therapies: Metformin ± pioglitazone ± DPP‐4i; other OADs discontinued

Intensification from IDegAsp OD to IDegAsp BID

Step‐by‐Step intensification trial

Philis‐Tsimikas et al. Diabetes Res Clin Pract 2019 27 NCT02906917

Phase III

38‐wk, open‐label, treat‐to‐target

n = 532

Inadequately controlled on basal insulin ± OADs

IDegAsp OD vs. IGlar U100 OD + IAsp OD for 26 wk then IDegAsp OD/BID vs. IGlar U100 OD + IAsp OD/BID/TID, for 12 wk

Weeks 0–26 ETD IDegAsp/IGlar U100: 0.07% [−0.06, 0.21]95% CI

Weeks 0–38 ETD IDegAsp/IGlar U100: 0.09 [−0.04; 0.22]95% CI

Weeks 0–26 ETD IDegAsp/IGlar U100: 0.04 [−0.34; 0.42]95% CI

Weeks 0–38 ETD IDegAsp/IGlar U100: −0.24 [−0.60; 0.13]95% CI

Overall:

Weeks 0–26 ERR IDegAsp/IGlar U100: 0.90 [0.67; 1.22]95% CI

Weeks 0–38 ERR IDegAsp/IGlar U100: 0.86 [0.65; 1.14]95% CI

Nocturnal

Weeks 0–26 ERR 0.55 [0.34; 0.90]95% CI

Weeks 0–38 ERR 0.61 [0.40; 0.93]95% CI

Duration of diabetes, mean years (SD) IDegAsp: 12.9 (6.9) IGlar U100: 13.0 (6.5)

Baseline HbA1c, mean % (SD) IDegAsp: 8.2% (0.8) IGlar U100: 8.1% (0.7)

Pretrial therapies: Basal insulin ± other OADs (biguanide, SU, glinide, DPP‐4i, α‐glucosidase inhibitor, SGLT‐2i)

In‐trial concomitant therapies: SU/glinide discontinued

Switching either from premixed insulin or self‐mixed insulin ± OAD, or from human insulin OD/BID, basal insulin OD/BID, premixed insulin or self‐mixed insulin ± metformin to IDegAsp

INTENSIFY PREMIX I

Fulcher et al. Diabetic Care 2014 19 NCT01009580

Phase IIIa

26‐wk, open‐label, treat‐to‐target n = 447

Inadequately controlled with premixed insulin ± OADs

IDegAsp BID vs. BIAsp 30 BID

IDegAsp/BIAsp 30 ETD: −0.03% [−0.18; 0.13]95% CI; P = NS

IDegAsp/BIAsp 30 ETD: −1.14 [−1.53; −0.76]95% CI; P < .001

Overall

IDegAsp/BIAsp30 ERR: 0.68 [0.52; 0.89]95% CI; P = .0049

Nocturnal

IDegAsp/BIAsp30

ERR: 0.27 [0.18; 0.41]95% CI; P = .0001

Duration of diabetes, mean years (SD) IDegAsp: 12.8 (6.8) BIAsp 30: 13.1 (7.4)

Baseline HbA1c, mean % (SD) IDegAsp: 8.3 (0.8) BIAsp 30: 8.4 (0.9)

Pretrial therapies:

Premixed or self‐mixed 20–40% rapid/short acting insulin OD/BID ± OADs (metformin, SU, glinide, α‐glucosidase inhibitor, DPP‐4i, pioglitazone)

In‐trial concomitant therapies: all prior therapies discontinued except metformin, DPP‐4i and pioglitazone

INTENSIFY ALL

Kaneko et al. Diabetes Res Clin Pract 2015 20 NCT01059812

Phase III

26‐wk, open‐label, treat‐to‐target

(n = 424)

(Asian)

Inadequately controlled on basal or premixed insulin ± metformin

IDegAsp BID vs. BIAsp 30 BID

ETD IDegAsp/BIAsp 30: 0.05% [−0.10; 0.20]95% CI

ETD IDegAsp/BIAsp 30: −1.06 [−1.43; −0.70]95% CI; P < .001

Overall

ERR IDegAsp/BIAsp 30: 1.00 [0.76; 1.32]95% CI; P = NS

Nocturnal ERR

IDegAsp/BIAsp 30: 0.67 [0.43; 1.06]95% CI; P = NS

Duration of diabetes, mean years (SD) IDegAsp: 16.3 (7.9) BIAsp 30: 16.3 (8.2)

Baseline HbA1c, mean % (SD) IDegAsp: 8.4% (0.8) BIAsp 30: 8.4% (0.9)

Pretrial therapies: basal, premixed or self‐mixed insulin ± metformin

In‐trial concomitant therapies: metformin only

INTENSIFY PREMIX I/INTENSIFY ALL pooled analysis

 Christiansen et al. J Diabetes 2016 22

Pooled analysis of INTENSIFY PREMIX I and INTENSIFY ALL

Inadequately controlled with premixed insulin ± OADs OR basal or premixed insulin ± metformin, respectively

IDegAsp BID vs. BIAsp 30 BID

IDegAsp vs. BIAsp 30: ETD 0.00% [−0.11; 0.10]95% CI; P = NS

IDegAsp vs. BIAsp 30: ETD −1.12 [−1.38; −0.85]95% CI; P < .0001

Overall

ERR IDegAsp vs. BIAsp 30: 0.81 [0.67; 0.98]95% CI; P = .03

Nocturnal

ERR IDegAsp vs. BIAsp 30: 0.43 [0.31; 0.59]95% CI; P < .0001

Duration of diabetes, mean years (SD) INTENSIFY PREMIX I IDegAsp: 12.8 (6.8) BIAsp 30: 13.1 (7.4)

 INTENSIFY ALL IDegAsp: 16.3 (7.9)

 BIAsp 30: 16.3 (8.2)

Baseline HbA1c, mean % (SD) INTENSIFY PREMIX I IDegAsp: 8.3 (0.8) BIAsp 30: 8.4 (0.9)

 INTENSIFY ALL IDegAsp: 8.4 (0.8) BIAsp 30: 8.4 (0.9)

Pretrial therapies:

 INTENSIFY PREMIX I Premixed insulin (OD or BID) ± OADs (metformin,

 DPP‐4i and pioglitazone)

 INTENSIFY ALL Basal, premixed or self‐mixed insulin ± metformin

In‐trial concomitant therapies:

 INTENSIFY PREMIX I Metformin ± DPP‐4i ± pioglitazone INTENSIFY ALL Metformin

Abbreviations: BIAsp 30, biphasic insulin aspart 30; BID, twice daily; CI, confidence interval; DPP‐4i, dipeptidyl‐peptidase‐4 inhibitor; ERR, estimated rate ratio; ETD, estimated treatment difference; glargine, insulin glargine; glargine U100, insulin glargine 100 units/mL; IAsp, insulin aspart; IDegAsp, insulin degludec/insulin aspart co‐formulation; IGlar, insulin glargine; NPH, insulin neutral protamine Hagedorn; NS, not significant; OAD, oral antidiabetic drug; OD, once daily; OW, once weekly; SD, standard deviation; SGLT‐2i, sodium‐glucose co‐transporter‐2 inhibitor; SU, sulphonylurea; TID, three times daily; T2D, type 2 diabetes; Q2W, every 2 weeks.

*

The mean ETD (IDegAsp–glargine U100) was −0.08% (95% CI: −0.26, 0.09) after 52 weeks, as observed in the core phase at week 26. 24