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LAPSInsulin 43.1 nmol/kgLAPSInsulin 258.30 nmol/kgLAPSInsulin 115 43.1 nmol/kgLAPSInsulin 115 129.2 nmol/kg
Time (days)
FB
G (m
g/d
L)
European Association for the Study of Diabetes 50th Annual Meeting; Vienna, Austria; September 15-19, 2014 For any questions, please contact Hanmi Pharm. Co., Ltd., Phone: +82-31-371-5141; [email protected]
The Long-acting Basal Insulin (LAPSInsulin 115) Offers Once-weekly Dosing Potential With Favorable PK, PD And Mitogenic ProfilesIY Choi1, SY Hwang1, , JY Kim1, SY Jung1, DJ Kim1, YM Lee1, YH Kim1, M Trautmann2, M Hompesch2, JW Son1, SC Kwon1 1Hanmi Pharm. Co., Ltd., Seoul, South Korea, 2Profil Institute, Chula Vista, CA, USA
P933
Hanmi Hanmi Pharm. Co., Ltd.
METHODS
RESULTS
Pharmacokinetic analysis of LAPSInsulin 115 in animal modelsTest materials were s.c. injected to normal or renal failure SD rats or normal pigs. Re-nal failure SD rat model was induced by 4 mpk of cisplatin. Serum concentration of test articles were determined using ELISA and PK parameters were calculated by a non-compartmental method.
Table 1. Receptor binding affinity, metabolic and mitogenic potencies relative to human insulin
BACKGROUND
LAPSInsulin 115 as a once weekly basal insulin
Lower peak-to-trough ratio from long duration of action Improved patient adherence by once-weekly administration Ideal combination partner with weekly GLP-1 agonist
[EASD 2014 Poster #972, Combination of LAPSInsulin 115 and LAPSCA-Exendin-4]
Insulin 115 analog conjugated with a constant region of a human immunoglobulin fragment via non-peptidyl linker.
AIMS Investigation of in vitro receptor pharmacology, metabolic, and mito-
genic activity of LAPSInsulin 115 Evaluation of pharmacokinetics and pharmacodynamics of LAPSInsulin
115 in normal and diabetic animal models Prediction of human pharmacokinetic profile of LAPSInsulin 115 based on
animals’ PK data
Test materials
Receptor binding (%) Mitogenic potency (%)
Mitogenic/Metabolic po-tency§ ratio
Insulin IGF-1 SaOS-2 MCF-7 SaOS-2 MCF-7
Human insulin 100 100 100 100 1 1
IGF-1 0.6 17,984 6,255 1,527 2,234 545
Insulin AspB10 248 449 756 912 2.5 3.0
Insulin 115 86 84 119 88 <1 <1
LAPSInsulin 115 1.7 Too low to be determined
5.3 5.4 <1 <1
Both LAPSInsulin 115 and Insulin 115 showed reduced affinities on IR and IGF-1R compared with human insulin. In addition, LAPSInsulin 115 and Insulin 115 showed mitogenic/metabolic potency which was comparable to human insulin.
Figure 2. Ex vivo T cell activation of Insulin 115 and LAPSInsulin 115
Insulin 115 showed negligible activation of T cells from 50 human donors, which is below the immunogenic threshold. In addition, LAPSInsulin 115 completely attenuated the residual T cell activation.
0
5
10
15
20
LAPSInsulin 115
Insulin 115
Ex v
ivo
T c
ell
activ
atio
n
Fre
qu
en
cy o
f re
sp
on
se
(%
)
0%
8%
0
2
4
6
8
10
LAPSInsulin 115
Insulin 115
ex vivo
T
cell activatio
n
fre
qu
en
cy o
f R
esp
on
se
(%
)
Immunogenic threshold
Key requirements for once weekly insulin
Additional requirements Excellent Device No CV safety concerns
PK matched with weekly GLP-1 for combination therapy
Longer half-life
Flat profile
Low Variability (intra-patient)
Low Risk of hypos
Flexible timing/dosing
Little or no weight gain
Pharmacokinetic prediction in humanHuman serum concentration-time was predicted by Css-MRT method from PK parame-ters of mice, rats and dogs. Human CL was derived from rule of exponent methods, and human Vd was from allometry applied correction factor.
Phamacodynamic analysis of LAPSInsulin 115 in db/db miceIn an acute study, 4-hr fasting blood glucose level was measured every day after s.c administration of test articles in db/db mice. In a chronic study, HbA1c level was mea-sured after 4-wk administration in db/db mice with Q2D dosing interval to mimic human QW dosing.
Ex vivo T cell activation (Antitope limited, UK)Test articles were incubated for 8 days with PBMC from 50 donors. Cell proliferation was meausred by [3H]-Thymidine incorporation and T-cell activation was identified with IL-2 secretion by Elispot assay.
Figure 1. Mitogenic signaling in MCF-7 cells
IGF-1R
p-ERK1/2
ERK1/2
p-IGF-1R
p-AKT
AKT
Actin
h-Insu
lin
Control
IGF-1
Asp B
10In
sulin
115
IGla
rgin
e
pIGF-1R (10 min)
0
5
10
15
Untreated
IGF-1
Human insulin
AspB10
Insulin A15
Control HumanInsulin
AspB10
Insulin115
IGF-1
Insulin glargine
IGlar
IGF
-1R
ph
osp
ho
ryla
tio
n
(F
old
of c
on
tro
l)
IGF-1R phosphorylation
pAkt (10 min)
0
5
10
Untreated
IGF-1
Human insulin
AspB10
Insulin A15
Control HumanInsulin
AspB10
Insulin115
IGF-1
Insulin glargine
IGlar
Akt p
ho
sp
ho
ryla
tio
n
(F
old
of c
on
tro
l)
AKT phosphorylation pERK (10 min)
0
2
4
6
8
Untreated
IGF-1
Human insulin
AspB10
Insulin A15
Control HumanInsulin
AspB10
Insulin115
IGF-1
Insulin glargine
IGlar
Erk1/2
ph
osp
ho
ryla
tio
n
(F
old
of c
on
tro
l)
ERK1/2 phosphorylation
Insulin
IGF-1R
IRS-1/2
PI3K
Apoptosis
SHC
RAS/RAF
Cell proliferation
IGF-1 receptor signaling
IGF-1
AKT ERK1/2
Insulin 115 triggered mitogenic signals comparable with human insulin, whereas positive controls (IGF-1 and AspB10) showed significantly higher mitogenic signals.
In vitro receptor binding affinity and mitogenic signaling in MCF-7Binding affinity of test materials was measured in competition between unlabeled and 125I-labeled materials on the IR- or IGF-1R/CHO membrane. Mitogenic signaling was assayed in MCF-7 cells and the phosphorylation level was analyzed by Western blot.
In vitro Binding, Proliferation, and ex vivo T Cell Activation
§ Metabolic potencies were obtained from lipogenesis assay from rat primary adipocytes
65.1 nmol/kg
0 2 4 6 80.1
1
10
100
1000
LAPS-Insulin 65.1nmol/kg [kv-3119]LAPS-Insulin A15 65.1nmol/kg [kv-3119]
20K-Insulin 65.1 nmol/kg [kv-3107]
Degludec 55.8 nmol/kg [kv-3059]
Time (days)
Seru
m c
on
c.
(nM
)
LAPSInsulin 115t1/2 = 44.1 hrs
LAPSInsulint1/2 = 18.5 hrs20K PEG Insulin
t1/2 = 6.7 hrsIDegt1/2 = 2.9 hrs
65.1 nmol/kg
0 2 4 6 80.1
1
10
100
1000
LAPSInsulin 65.1nmol/kg (weekly)LAPSInsulin 115 65.1nmol/kg (weekly)
20K PEG Insulin 65.1 nmol/kg (daily)
IDegludec 55.8 nmol/kg (daily)
Time (days)
Seru
m co
nc. (n
M)
Figure 3. PK in normal and renal failure model rats
0 2 4 6 80.01
0.1
1
10
100
-40
-20
0
20
Time (days)S
eru
m c
on
c.
(nM
)
FB
G (m
g/d
L)
LAPSInsulin 115 showed PK/PD correlation in normal pigs.
Figure 4. PK/PD in pigs (n=3, s.c.)
0 2 4 6 80.01
0.1
1
10
100
-40
-20
0
20
PK_LAPSInsulin 3.5 nmol/kg
PK_LAPSInsulin 115 3.5 nmol/kg
FBG_vehicle
FBG_LAPSInsulin 3.5 nmol/kg
FBG_LAPSInsulin 115 3.5 nmol/kg
Time (days)
Seru
m co
nc. (n
M)
FB
G (m
g/d
L)
0 2 4 6 80.01
0.1
1
10
100
-40
-20
0
20
PK_LAPSInsulin 3.5 nmol/kg
PK_LAPSInsulin 115 3.5 nmol/kg
FBG_vehicle
FBG_LAPSInsulin 3.5 nmol/kg
FBG_LAPSInsulin 115 3.5 nmol/kg
Time (days)
Seru
m co
nc. (n
M)
FB
G (m
g/d
L)
LAPS Insulin 115t1/2 = 76.6 hrs
LAPS Insulint1/2 = 23 hrs
(a) PK in normal rats (n=5, s.c.)
34 35 36 37 38 39 40 41 42 431
10
100
LAPSInsulin 3.5 nmol/kgLAPSInsulin 115 0.88 nmol/kgLAPSInsulin 115 3.5 nmol/kg
Time (days)
Seru
m c
on
c.
(nM
)
Figure 6. Human PK simulation of LAPSInsulin115 by weekly injection
Pharmacokinetics in humans was predicted based on PK of three different animals. LAPSInsulin 115 demonstrated extended half-life and lower peak-to-trough ratio than LAPSInsulin. In addition, inter-day variability of LAPSInsulin 115 was ranged from 1.0-1.1.
REFERENCES
CONCLUSIONS In vitro biological properties showed that Insulin 115 and LAPSInsulin 115
did not increase the mitogenic potency when compared with insulin.
An extended PK profiles and prolonged glucose lowering efficacies sug-gest that LAPSInsulin 115 may achieve a basal insulin profile suitable for once weekly use.
The extended human PK modeling suggests that LAPSInsulin 115 is an ideal combination partner with LAPSCA-Exendin-4 [EASD 2014 Poster #972].
1. Diabetic Medicine (2013) 30: 1293–1297., 2. Diabetes (2011) 60 (Suppl. 1):LB11 (37-LB)3. PLoS ONE (2010) 5: e9540., 4. PLoS ONE (2012) 7: e34274.
Figure 5. Dose-sparing and glucose lowering in db/db mice (n=7, s.c.)
LAPSInsulin 115 showed prolonged glucose lowering effect compared to LAPSInsulin in db/db mice at the same dose and even with a 6 fold lower dose.
LAPSInsulin 115 achieved a similar HbA1c reduction with a 4 fold lower dose.
HbA1c-28
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LAPSInsulin 21.5 nmol/kg, Q2DLAPSInsulin 43.1 nmol/kg, Q2DLAPSInsulin 86.1 nmol/kg, Q2DLAPSInsulin 115 5.5 nmol/kg, Q2DLAPSInsulin 115 11.1 nmol/kg, Q2DLAPSInsulin 115 22.2 nmol/kg, Q2D
Hb
A1c (%
)
HbA1c-28
6
8
10
12
Vehicle
LAPSInsulin 21.5 nmol/kg, Q2DLAPSInsulin 43.1 nmol/kg, Q2DLAPSInsulin 86.1 nmol/kg, Q2DLAPSInsulin 115 5.5 nmol/kg, Q2DLAPSInsulin 115 11.1 nmol/kg, Q2DLAPSInsulin 115 22.2 nmol/kg, Q2D
Hb
A1c (
%)
*p<0.05, **p<0.01 vs vehicle by Anova test
**
***
*
*** ***
-1.0
-2.0
-3.4
-1.8
-2.6
-3.3
4 fold reduced dose
(b) 4-week repeated dose (a) Single dose Together
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500
600
Vehicle
LAPS-Insulin 43.05 nmol/kg (1X HED)LAPS-Insulin 258.30 nmol/kg (6X HED)
HM12470A 43.05 nmol/kg
HM12470A 129.15 nmol/kg
Time (days)
FB
G (
mg
/dL
)
6 foldreduced dose
0 7 14 21 28 35 42 49 56 630.1
1
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1000
Time (day)
Ser
um
co
nc.
(nM
)
Weekly injected steady state profile Single week Profile
LAPSInsulin 115, t1/2 = 132 hrs
Weekly Peak-to-Trough Ratio = 1.6
LAPSInsulin, t1/2 = 55 hrs
Weekly Peak-to-Trough Ratio = 4.0
LAPSInsulin 115,
Daily Peak-to-Trough Ratio = ~1.1
Figure 7. Development plan of LAPSInsulin 115 and QUANTUM project
QUANTUM is a proprietary name of Hanmi’s diabetes & obesity pipeline
PK/PD Correlation and Dose Sparing Effect
Human PK and Developmental Plan
LAPSInsulin ,
Daily Peak-to-Trough Ratio = ~1.31.1 1.0 1.1 1.1 1.1 1.1
HM12470
0 2 4 6 81
10
100
1000Normal ratsRenal failure rats
Time (days)
Seru
m c
on
c.
(nM
)
LAPSInsulin 115 showed extended half-life compared with LAPSInsulin and daily insulins.LAPSInsulin 115 showed a comparable PK profile in a renal failure rat model
(4 mg/kg of cisplatin injected, ip, rats) compared with normal rats.
(b) PK comparison in normal and renal failure model rats (n=5, s.c.)
Insulin 115 (172 nmol/kg, sc)
LAPSInsulin 115 (22.3 nmol/kg, sc)
Insulin
0 1 2 3 41
10
100
1000NormalRenal failure
Time (hrs)
Serum
conc
. (nM)
Insulin115
0 1 2 3 41
10
100
1000NormalRenal failure
Time (hrs)
Serum
conc
. (nM)
HM12470
0 50 100 150 2001
10
100
1000Normal SD ratsRenal failure rats
Time (hrs)
Ser
um
co
nc.
(n
M)
Insulin (172 nmol/kg, sc)