Top Banner
New Agents and Technologies in the Pipeline for the Treatment of Patients with Diabetes Peter Stein, MD Janssen Research and Development
27

E3 stein cadth presentation 2013 - salon f

Nov 30, 2014

Download

Health & Medicine

CADTH Symposium

 
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: E3   stein cadth presentation 2013 - salon f

New Agents and Technologies in the Pipeline for the Treatment of Patients with

Diabetes

Peter Stein, MD

Janssen Research and Development

Page 2: E3   stein cadth presentation 2013 - salon f

Agents in Phase 3 Development for T2DM

• Long-acting GLP-1 analogues – including once-weekly

exenatide, albiglutide, dulaglutide

• SGLT2 inhibitors - including

canagliflozin, dapagliflozin, empagliflozin

• GPR40 agonists - TAK875

• Dual PPAR α/γ agents: aleglitazar (Phase 3 studies for post-MI

use)

• Insulins

– Inhaled - Afrezza®

– Long-acting – Insulin degludec; LY2605541 (Lilly)

2

Page 3: E3   stein cadth presentation 2013 - salon f

AHAs Sites of Action

3

Glucose reabsorption

Kidney

SGLT2 inhibitors

SU, meglitinides DPP-4

GLP-1 agents

+

GLP-1DPP-4

↓ Glucagon

Page 4: E3   stein cadth presentation 2013 - salon f

Sodium-glucose Transporter-2 (SGLT2): Key Renal Transporter Reabsorbing Filtered Glucose Back into Systemic Circulation

Glucose

Reabsorbed to

Systemic

Circulation

No Glucose

in Urine

Proximal

Convoluted TubuleDistal

Convoluted Tubule

Collecting

Duct

Glomerulus

SGLT1

SGLT2

Loop of Henle

Glucose is

Filtered in the

Glomerulus

SGLT2

• Primarily expressed in kidney

• Responsible for majority of renal glucose reabsorption

SGLT1

• Responsible for small portion of renal glucose reabsorption

• Prominent role in intestinal glucose absorption

FDA Advisory Committee Sponsor Slide Presentation 10Jan2013

Page 5: E3   stein cadth presentation 2013 - salon f

SGLT2 Inhibition Leads to Improved Glucose Control in T2DM

SGLT2

inhibition

Less

Glucose

Absorbed

Glucosuria

Proximal

Convoluted TubuleDistal

Convoluted Tubule

Collecting

Duct

GlomerulusGlucose is

Filtered in the

Glomerulus

SGLT1

SGLT2

Loop of Henle

X

• Inhibition of SGLT2 increases urinary glucose excretion (UGE)

• Directly reduces plasma glucose concentrations

• Increased UGE is loss of calories (4 kcal per gram of carbohydrate)

FDA Advisory Committee Sponsor Slide Presentation 10Jan2013

Page 6: E3   stein cadth presentation 2013 - salon f

Dapagliflozin: Comparator Study to Glipizide in Add-on to Metformin

6Nauck et al Diabetes Care 2011

Page 7: E3   stein cadth presentation 2013 - salon f

Dapagliflozin: Comparator Study to Glipizide in Add-on to Metformin

7Safety table results extracted from Nauck et al Diabetes Care 2011 (see publication for complete results)

Page 8: E3   stein cadth presentation 2013 - salon f

Canagliflozin Active-comparator (Glimepiride) Add-on to

MetforminChange in A1C (LOCF)

8

LS

me

an

ch

an

ge

(±S

E)

fro

m b

ase

line

(%

)

GLIM CANA 100 mg CANA 300 mg

0 8 12

LS mean

change

–0.81%

–0.93%–0.82%

–0.01%

(95% CI: –0.11, 0.09)

–0.12%

(95% CI: –0.22, –0.02)

18 26 36 44 52

Baseline (%) 7.8 7.8

Time point (wk)

7.8

LOCF, last observation carried forward; GLIM, glimepiride; CANA, canagliflozin; LS, least squares; SE, standard error; CI, confidence interval.

–0.2

0.0

0.2

–0.4

–0.6

–0.8

–1.0

–1.2

Cefulu et al ADA2012

Hypoglycemia Event

Inidence:

• CANA 100 mg: 5.6%

• CANA 300 mg: 4.9%

• GLIM: 34.2%

Page 9: E3   stein cadth presentation 2013 - salon f

Canagliflozin Active-comparator (Glimepiride) Add-on to

MetforminPercent Change in Body Weight (LOCF)

9LOCF, last observation carried forward; GLIM, glimepiride; CANA, canagliflozin; LS, least squares; SE, standard error.

LS

me

an

% c

ha

ng

e (

±S

E)

fro

m b

ase

line

GLIM CANA 100 mg CANA 300 mg

Baseline (kg)LS mean

% change

86.6 86.686.8

–4.2% (–3.7 kg)

–4.7% (–4.0 kg)

1.0% (0.7 kg)

–5.7% (–4.7 kg)

P <0.001

–5.2% (–4.4 kg)

P <0.001

0 4 8 12 18 26 52

Time point (wk)

4436

–1

–2

–3

–4

–5

–6

0

1

2

Cefalu et al ADA2012

Page 10: E3   stein cadth presentation 2013 - salon f

Canagliflozin Active-comparator (Glimepiride) Add-on to

MetforminSummary of Overall Safety and Selected AEs

10

Subjects, n (%)

GLIM

(n = 482)

CANA 100 mg

(n = 483)

CANA 300 mg

(n = 485)

Any AE 330 (68.5) 311 (64.4) 332 (68.5)

AEs leading to discontinuation 28 (5.8) 25 (5.2) 32 (6.6)

AEs related to study drug* 113 (23.4) 118 (24.4) 145 (29.9)

Serious AEs 39 (8.1) 24 (5.0) 26 (5.4)

Deaths 2 (0.4) 0 2 (0.4)

Genital mycotic infection

Male†,

Female‡,§

3 (1.1)

5 (2.3)

17 (6.7)

26 (11.3)

20 (8.3)

34 (13.9)

UTI 22 (4.6) 31 (6.4) 31 (6.4)

Osmotic diuresis-related AEs

Pollakiuria (increased frequency)

Polyuria

1 (0.2)

2 (0.4)

12 (2.5)

4 (0.8)

12 (2.5)

4 (0.8)

Volume-related AEs

Postural dizziness

Orthostatic hypotension

3 (0.6)

0

3 (0.6)

1 (0.2)

2 (0.4)

1 (0.2)

AE, adverse event; GLIM, glimepiride; CANA, canagliflozin; UTI, urinary tract infection.

*Possibly, probably, or very likely related to study drug, as assessed by investigators.†GLIM, n = 263; CANA 100 mg, n = 252; CANA 300 mg, n = 241.‡GLIM, n = 219; CANA 100 mg, n = 231; CANA 300 mg, n = 244.§Including vaginal infection, vulvitis, vulvovaginal candidiasis, vulvovaginal mycotic infection, and vulvovaginitis.

Cefalu et al ADA2012

Page 11: E3   stein cadth presentation 2013 - salon f

SGLT2 Inhibitors – Reported Profile

Efficacy

• Glucose-lowering

– HbA1c, FPG, PPG

• Decreases body weight

• Lowers blood pressure

Safety

• Genital infections (vulvovaginitis, balanitis)

• UTIs

• Adverse events related to diuretic response (osmotic diuresis)

• Other reported adverse effects

11

Page 12: E3   stein cadth presentation 2013 - salon f

GPR40 – a new target for the treatment of patients with T2DM

12

• GPR40 – a G-protein coupled receptor (GPCR) – with endogenous ligands including free fatty acids

• On pancreatic islet beta-cells and on gut incretin secreting cells (GLP-1)

• Stimulates glucose-dependent release of insulin

Araki DOM 2012

2 weeks

Baseline

Page 13: E3   stein cadth presentation 2013 - salon f

GPR40 Agonist: TAK875Dose-Range Finding Study Results

13

Burant et al Lancet 2012

Page 14: E3   stein cadth presentation 2013 - salon f

Glucose Target

Patient -Determined Insulin Dose

Insulin Dose

Glucose

CGM Reading

Glucose Monitoring: Closing the Loop

14

JDRF CGM Study GroupDiabetes Care 2009

Page 15: E3   stein cadth presentation 2013 - salon f

15

Glucose monitoring: Closing the Loop

Glucose Target

Controller-Determined Insulin Dose

Insulin Dose

Glucose

CGM Reading

Haidar CMAJ 2013

Page 16: E3   stein cadth presentation 2013 - salon f

Stem Cell-Based Therapeutics

Differentiation

16

• Stem cell based therapies –differentiating into insulin-secreting cells ex-vivo and transplanting SC

• Rejection as the key limitation (xeno- or allo-transplantion)

• One approach: encapsulation

Page 17: E3   stein cadth presentation 2013 - salon f

Immunoprotection Strategy Using an Encapsulation Device

LoadingPort

Outer Cell Vascularizing

Membrane

Insulin

Oxygen, Nutrients & Glucose

Pancreatic Precursor Cells

Immune Cell

Barrier

Inner Cell Isolation

Membrane

17

Page 18: E3   stein cadth presentation 2013 - salon f

“Game Changers” in the Care of Patients with Diabetes

• Near term – new classes of agents that add to our treatment options

• “Mid-term” – CV outcome studies for recent / new classes (DPP-4, GLP-1, SGLT2 inhibitors)

• Long-term - transforming how we care of patients

– Closing the loop (artificial pancreas)

– Stem cell approaches

– Agents that restore / expand beta-cell functional mass

18

Page 19: E3   stein cadth presentation 2013 - salon f

CV Outcome Study Results from New Agent Classes

• GLP-1 receptor agonists– LEADER (liraglutide)

– EXSCEL (once-weekly exenatide)

– REWIND (Dulaglutide)

– ELIXA (Lixisenatide)

• DPP-4– TECOS (Sitagliptin)

– SAVOR (Saxagliptin)

– EXAMINE (Alogliptin)

– CAROLINA (Linagliptin)

• SGLT2– DECLARE (Dapagliflozin)

– CANVAS (Canagliflozin)

– Empagliflozin

19

Study Results2013-2019

Page 20: E3   stein cadth presentation 2013 - salon f

Current US Diabetes Control: NHANES

20Ali NEJM 2013

=<7%

53% in 2007-2010 vs 44% in 1999-2003

Page 21: E3   stein cadth presentation 2013 - salon f

Start metformin immediately

Consider initial combination with

another antihyperglycemic agent

Start lifestyle intervention (nutrition therapy and physical activity) +/- Metformin

A1C <8.5%Symptomatic hyperglycemia with

metabolic decompensationA1C 8.5%

Initiate

insulin +/-

metformin

If not at glycemic

target (2-3 mos)

Start / Increase

metformin

If not at glycemic targets

L

I

F

E

S

T

Y

L

E

Add an agent best suited to the individual:

Patient Characteristics

Degree of hyperglycemia

Risk of hypoglycemia

Overweight or obesity

Comorbidities (renal, cardiac, hepatic)

Preferences & access to treatment

Other

See next page…

AT DIAGNOSIS OF TYPE 2 DIABETES

Agent Characteristics

BG lowering efficacy and durability

Risk of inducing hypoglycemia

Effect on weight

Contraindications & side-effects

Cost and coverage

Other

Canadian Diabetes Association Guidelines 2013

Page 22: E3   stein cadth presentation 2013 - salon f

If not at glycemic target

From prior page…

• Add another agent from a different class

• Add/Intensify insulin regimen

Make timely adjustments to attain target A1C within 3-6 months

L

I

F

E

S

T

Y

L

E

Canadian Diabetes Association Guidelines 2013

Page 23: E3   stein cadth presentation 2013 - salon f

Diabetes Care 2012;35:1364–1379

Diabetologia 2012;55:1577–1596

Current ADA/EASD Guidelines: Stepwise, Individualized Therapy

The ADA / EASD treatment algorithm:

Stepwise individualized patient therapy –weighing benefits and risks

Page 24: E3   stein cadth presentation 2013 - salon f

RTG*~180 mg/dL

0

25

50

75

100

125

0 50 100 150 200 250 300

Uri

nary

Glu

co

se E

xcre

tio

n

(g/d

ay)

Plasma Glucose (mg/dL)

There is a Threshold Relationship Between Plasma Glucose and UGE

Healthy Subjects

*Renal threshold for glucose FDA Advisory Committee Sponsor Slide Presentation 10Jan2013

Page 25: E3   stein cadth presentation 2013 - salon f

RTG*~180 mg/dL

Renal Glucose Reabsorption and RTG are Elevated in T2DM

0

25

50

75

100

125

0 50 100 150 200 250 300

Uri

nary

Glu

co

se E

xcre

tio

n

(g/d

ay)

Plasma Glucose (mg/dL)T2DM

mean RTG~240 mg/dL

T2DM

Healthy Subjects

*Renal threshold for glucose FDA Advisory Committee Sponsor Slide Presentation 10Jan2013

Page 26: E3   stein cadth presentation 2013 - salon f

SGLT2 Inhibition Lowers RTG Increasing UGE

0

25

50

75

100

125

0 50 100 150 200 250 300

Uri

nary

Glu

co

se E

xcre

tio

n

(g/d

ay)

Plasma glucose (mg/dL)T2DM

mean RTG~240 mg/dL

CANA

T2DM+CANARTG

*~70-90 mg/dL

*Renal threshold for glucose FDA Advisory Committee Sponsor Slide Presentation 10Jan2013

Page 27: E3   stein cadth presentation 2013 - salon f

Low Glucose Suspend(Reactive Shut-Off)

Reactive suspension of insulin delivery at hypoglycemia with

predefined period until resumed.

Hypo Minimizer(Predictive Hypo Control)

Predictive suspension or reduction of insulin before

hypoglycemia occurs. User interaction required for Hyper

region.

Hypo / Hyper Minimizer(Predictive Zone Control)

Predictive modulation of insulin delivery when outside target range

to limit hypo/hyper excursions.

Hybrid Closed-loop(Predictive Target Control)

Predictive modulation of insulin to target with user interaction

required to announce meals/activity to algorithm.

Automatic Closed-Loop(Automated Predictive Target

Control)

Predictive modulation of insulin delivery to target with the ability at all times with no user interaction.

Sources: Close Concerns, JDRF, Internal Assessment, Closed-loop insulin delivery for treatment of type 1 diabetes, BMC Medicine, Nov. 2011

Automatic Closed-Loop(Automated Dual Hormone

Target Control)

Predictive modulation of insulin and glucagon delivery to target at all times with no user interaction.

1st Generation

2nd Generation 3rd Generation

1 2 3

4 5 6

Evolution of Glucose Monitoring