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CARDIO-RENAL Advisory Committee Meeting EXTRANEAL™ (7.5% Icodextrin) Peritoneal Dialysis Solution NDA 21-321 Orphan Drug Designation 97-1056 August 9, 2001 Baxter Healthcare Corporation
Transcript
Page 1: ppt

CARDIO-RENALAdvisory Committee Meeting

EXTRANEAL™ (7.5% Icodextrin)

Peritoneal Dialysis SolutionNDA 21-321

Orphan Drug Designation 97-1056

August 9, 2001

Baxter Healthcare Corporation

Page 2: ppt

2

Baxter Participants Marsha Wolfson, M.D.

Vice President, Global Clinical Affairs

Salim Mujais, M.D. Vice President, Global Medical Affairs

Frank Ogrinc, Ph.D. Clinical Statistician

Leo Martis, Ph.D. Vice President, Solution Development

James Moberly, Ph.D. Director, Solutions R&D

Richard Newman, Ph.D. Vice President, Global Product Development

Mary Kay Rybicki Associate Director, Regulatory Affairs

Page 3: ppt

3

Consultants John Burkart, M.D.

Professor of Internal Medicine/Nephrology, Bowman Gray School of Medicine

Allan Collins, M.D. Professor of Medicine,

University of Minnesota, Director Nephrology Analytical Services, Minneapolis Medical Research Foundation

Marc DeBroe, M.D., Ph.D. Dept. of Nephrology &

Hypertension, University Hospital of Antwerp

Ram Gokal, M.D. Consultant Nephrologist,

University of Manchester

Karl Nolph, M.D. Curator Professor Emeritus,

University of Missouri, Columbia William Frishman, M.D.

Chairman & Professor of Medicine, New York Medical College, Department of Medicine

Peter O’Brien, Ph.D. Professor of Biostatistics, Mayo

Medical School, Department of Health Sciences Research

Robert Stern, M.D. Carl J. Herzog Professor of

Dermatology, Beth Israel Deaconess Medical Center

Jeff Trotter, M.M. President, Ovation Research

Group

Page 4: ppt

4

Extraneal Development Milestones

First market approval UK 1992 by ML Labs

Licensed by Baxter 1996

Marketing approval in 31 countries

~8200 patients currently treated worldwide

30% of PD patients in Europe

US clinical trials began 1997

Orphan Drug designation granted 1997

NDA submitted December 2000

Page 5: ppt

5

Proposed Indication

Extraneal is indicated for a single daily exchange for the long (8-16 hour) dwell during continuous ambulatory peritoneal dialysis (CAPD) or automated peritoneal dialysis (APD) for the management of chronic renal failure.

Page 6: ppt

6

Topics Identified in FDA Briefing Document & Questions

Dialysis Efficacy

Quality of Life

Size of Database

Safety Profile Mortality

Rash

Peritonitis

Membrane Transport Characteristics

Page 7: ppt

7

AGENDACardio-Renal Advisory Committee

NDA 21-321 Extraneal (7.5% icodextrin)

Introduction and Rationale for ExtranealSalim Mujais, M.D., Vice President Global Medical Affairs, Baxter

Clinical Trial Experience with ExtranealMarsha Wolfson, M.D., Vice President Global Clinical Affairs, BaxterFrank Ogrinc, Ph.D., Clinical Statistician, Baxter

 Conclusions Salim Mujais, M.D., Vice President Global Medical Affairs, Baxter

  

Page 8: ppt

8

Icodextrin: A Polymer of Glucose

Main chain 1 4 linkage

O

CH2OH

O

CH2OH

O

CH2

O

CH2OH

O O O

O

CH2OH

O

O

CH2OH

O

Page 9: ppt

9

Composition of Extraneal

DIANEAL EXTRANEAL

Dextrose (g/dL) 1.5, 2.5, 4.25 ---

Icodextrin (g/dL) --- 7.5

Sodium (mEq/L) 132.0 132.0

Chloride (mEq/L) 96.0 96.0

Calcium (mEq/L) 3.5 3.5

Magnesium (mEq/L) 0.5 0.5

Lactate (mEq/L) 40.0 40.0

Osmolality (mOsm/kg) 346-485 282-285

pH 5.2 5.2

Page 10: ppt

10

Clinical Rationale for Extraneal

Unmet clinical need

Limitations of fluid management in PD

Limitations of current osmotic agents

Necessity of the long dwell

Kinetics of peritoneal ultrafiltration

Extraneal as a new osmotic agent

Kinetics matching clinical requirement

Page 11: ppt

11

Unmet Clinical NeedLimitations of Current Fluid Management in PD

Symptomatic fluid retention occurs in 25% of all PD patients1. In these patients:

Lower extremity edema 98.6%

Pleural effusions 76.1%

Pulmonary congestion 80.3%

Similar clinical observations have been reported from Japan2, the Netherlands3 and Sweden4

1Tzamaloukas et al. JASN 1995; 2Kawaguchi et al. Kidney Int 1997;3Ho-dac-Pannekeet et al. Perit Dial Int 1997; 4Heimbürger et al. Perit Dial Int 1999

Page 12: ppt

12

Limitations of Fluid Management in PD Hampered by Inflexibility

Complexity of dietary counseling

Hampered by compliance issues

May complicate management

Constrained renal excretion1

Gradual decline to anuria

Diuretic resistance

Peritoneal Ultrafiltration

Challenge of the long dwell

1 Medcalf et al, Kidney International 59:1128, 2001

Page 13: ppt

13

The long dwell: an integral component of PD

Dwell3

Dwell2

Dwell4

Dwell1

Long dwell

AP

D

nighttime period daytime period

Long dwellday

dwellday

dwellday

dwell

CA

PD

Extraneal Use

Extraneal Use

Page 14: ppt

14

Rationale for the long dwell in PD: Intersection of two imperatives

Toxin removal imperative:

Small solutes removal fluid flow dependent

Middle and large molecular weight toxins are time dependent

Continuously wet abdomen required for therapy success

Realistic therapy imperative

Logistic burden and compliance

Page 15: ppt

15

Limitations of Current Osmotic Agents Dextrose Kinetics in PD: Rapid Dissipation

Mujais et al, Peritoneal Dialysis Int. 2001

0%

20%

40%

60%

80%

100%

120%

0 1 2 3 4 5

Dwell time (hr)

% D

ex

tro

se

re

ma

inin

g

+ 2SD

Mean

-2 SD

Page 16: ppt

16

Limitations of Current Osmotic Agents Balance of opposing forces

-600

-400

-200

0

200

400

600

800

-30 0 30 60 90 120 150 180 210 240

Time (min)

Cu

mu

lati

ve

tra

ns

po

rt (

ml)

Absorption Transcapillary UF Net UF

Mactier et al, J Clinical Invest 80:1311, 1987Removal from peritoneum

Page 17: ppt

17

Limitations of Current Osmotic Agents:Temporal Decline

-800

-600

-400

-200

0

200

400

600

800

1000

1200

0 2 4 6 8 10 12 14 16

Time (hr)

Ne

t U

F (

ml)

2.5% Dextrose

4.25% Dextrose

1.5% Dextrose

Negative UltrafiltrationHo-Dac-Pannekeet et al, Kid Int 1996; 50:979-86 Douma et al, Kid Int 1998; 53:1014-21

Page 18: ppt

18

Limitations of Current Osmotic AgentsGlycemic Effect of 4.25% Dextrose

orali.p.

Delarue et al, Kidney Int. 45:1147, 1994

Page 19: ppt

19

Limitations of Current Osmotic AgentsHyperinsulinemic Effect of 4.25% Dextrose

orali.p.

Delarue et al, Kidney Int. 45:1147, 1994

Page 20: ppt

20

Contrasting Dextrose vs. Icodextrin Peritoneal Kinetics

0%

20%

40%

60%

80%

100%

120%

0 2 4 6 8 10 12 14

Dwell time (hr)

Pe

rce

nt

rem

ain

ing

Dextrose Icodextrin

Dextrose data from Mujais et al, PDI 2001; Icodextrin data from RD-99-CA-060

Page 21: ppt

21

Plasma Levels of Total Icodextrin & MaltoseExtraneal 035 Study – APD

0

1000

2000

3000

4000

5000

6000

7000

Baseline Week 1 Week 6 Week 12 Week 13 Week 14

Pla

sm

a le

ve

l (m

g/L

)

IcodextrinMaltose

Page 22: ppt

22

Contrasting Dextrose vs. Icodextrin Net UF Profile

Temporal Decline vs. Sustained Effect

-800

-600

-400

-200

0

200

400

600

800

1000

1200

0 2 4 6 8 10 12 14 16

Time (hr)

Ne

t U

F (

ml)

2.5% Dextrose

4.25% Dextrose

7.5% Icodextrin

1.5% Dextrose

Negative UltrafiltrationHo-Dac-Pannekeet et al, Kid Int 1996; 50:979-86 Douma et al, Kid Int 1998; 53:1014-21

Page 23: ppt

23

Plasma Glucose and Insulin During an Extraneal Dwell

(060 Study)

0

20

40

60

80

100

0 2 4 8 12 16

Time (hr)

Pla

sma

Insu

lin

(U

U/m

l)

0

2

4

6

8

10

Plasm

a Glu

cose

(mm

ol/L

)Insulin

Glucose

Page 24: ppt

24

Rationale for Extraneal

Fluid management in PD is constrained by the consequences of the underlying disease resulting in a necessary high reliance on peritoneal ultrafiltration.

With dextrose-based solutions a long dwell can compound the difficulties with fluid management

There is an unmet need in fluid management in PD

Extraneal is uniquely suited for successful ultrafiltration during the long dwell, and can contribute significantly to fluid management in these critically ill patients

Page 25: ppt

Clinical Trial Experience with Extraneal Efficacy and Safety

Marsha Wolfson, MD, FACP

VP, Global Clinical Affairs

Francis G. Ogrinc, Ph.D.

Clinical Statistician

Page 26: ppt

26

Presentation Plan

Efficacy of Extraneal Net Ultrafiltration

Peritoneal Clearance

Special Assessments in Study 131

Safety Profile of Extraneal Database

Observational Mortality Data

Adverse Events

Laboratory Values

Page 27: ppt

27

Key Studies

216207TOTAL EFFICACY

Double Blind

8-16 hrs12 mos.

APD/CAPD

175112RD-97-CA-131 (2.5% dextrose)

8,12 hrs

12-16 hrs

8-16 hrs

Dwell Time/ Duration

Open6 mos.

CAPD

106103ML/IB/001 (MIDAS) (1.5% and 2.5/ 4.25% dextrose

Open4 mos.

APD

2019Pro-Renal-REG-035 (2.5% dextrose)

Double Blind

1 month

CAPD

9085RD-97-CA-130 (2.5% dextrose)

Study Design

Study Length/PD Therapy

Extraneal

(n)

Control

(n)

Study

Page 28: ppt

28

Supportive Studies

10228TOTAL PATIENTS

OpenSingle Exchange-

PK

N/A130RD-99-CA-060

Open8-12 hrs5 weeksCAPD

120ML/IB/014(S-5)

Open8-12 hrs45 monthsCAPD

480ML/IB/004 (MIDAS-2)

Open14-16 hrs20 weeksAPD

109Ml/IB/020 (DELIA)

Open 12-16 hrs2 years APD

1919ML/IB/011 DIANA

Study Design

Dwell TimeStudy Length/ PD Therapy

ExtranealControlStudy

Page 29: ppt

29

Age, Gender and RaceIntegrated Summary of Safety — Baseline Demographics for All

Studies

0

10

20

30

40

50

60

70

80

MEAN AGE

Control

Extraneal

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

MALE FEMALE

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Cauc.

Hisp.

Asian

Black

Oth

er

AGE GENDER RACE

Page 30: ppt

30

Primary Renal DiagnosisIntegrated Summary of Safety — Baseline Demographics for All

Studies

0% 5% 10% 15% 20% 25%

Other

Autoimmune Disease

Obstructive Nephropathy

Interstitial Nephritis

Polycystic Kidney Disease

Glomerulonephritis

Hypertensive Nephropathy

Diabetic Nephropathy

ExtranealControl

Page 31: ppt

31

Efficacy Endpoints

Primary Endpoint

Net Ultrafiltration

Secondary Endpoints

Peritoneal Creatinine Clearance

Peritoneal Urea Clearance

Special Assessments from Study 131

Edema

Body weight

QoL

Page 32: ppt

32

Ultrafiltration Extraneal 130 Study — CAPD

8-16 hour Dwell, Mean Net UF – Change from Baseline

*significant within (p<0.001) and between (p<0.01) groups

**

Mea

n N

et U

F (

ml)

0

50

100

150

200

250

300

350

400

Week 2 Week 4

Control (2.5%)

Extraneal

Page 33: ppt

33

Ultrafiltration Extraneal 035 Study — APD

12-16 Hour Dwell, Mean Net UF – Change from Baseline

Mea

n N

et U

F (

ml)

**

*significant within (p<0.001) and between (p<0.001) groups

*

-100

0

100

200

300

400

500

600

Week 1 Week 6 Week 12 Follow-up

Control (2.5%)

Extraneal

Page 34: ppt

34

Ultrafiltration Extraneal MIDAS Study — CAPD

8 & 12-Hour Dwell 1.5% Dextrose, Mean Net UF – Change from Baseline

*significant within (p<0.001) and between (p<0.001) groups

Mea

n N

et U

F (

ml)

* * *

0

100

200

300

400

500

600

Week 4 Week 13 Week 21

* **

8 HOUR DWELL 12 HOUR DWELL

0

100

200

300

400

500

600

Week 3 Week 12 Week 20

Control

Extraneal

Page 35: ppt

35

Ultrafiltration Extraneal MIDAS Study — CAPD

8 & 12-Hour Dwell 4.25% Dextrose, Mean Net UF – Change from Baseline

*significantly different from baseline

Mea

n N

et U

F(m

)

*

8 HOUR DWELL 12 HOUR DWELL

-400

-200

0

200

400

600

800

Week 4 Week 13 Week 21

Control

Extraneal

-400

-200

0

200

400

600

800

Week 3 Week 12 Week 20

Control

Extraneal

Page 36: ppt

36

Percentage of Patients with Negative Net UF Extraneal 130 Study — CAPD

8-16 Hour Dwell

0%

10%

20%

Baseline Week 2 Week 4

Control (2.5%)

Extraneal

% p

atie

nts

wit

h N

egat

ive

Net

UF

**

* significant between treatment groups (p<0.005)

Page 37: ppt

37

%

Pat

ien

ts w

ith

Neg

ati

ve

Ne

t U

FPercentage of Patients with Negative Net UF

Extraneal 035 Study — APD12-16 Hour Dwell

0%

10%

20%

30%

40%

50%

60%

70%

80%

Baseline Week 1 Week 6 Week 12 Follow-up

Control (2.5%)Extraneal

** *

*significant between treatment groups (p<0.001)

Page 38: ppt

38

Percentage of Patients with Negative Net UF Extraneal MIDAS Study — CAPD 8-Hour Dwell & 12-Hour Dwell 1.5% Dextrose

0%

10%

20%

30%

40%

50%

Baseline Week 3 Week 12 Week 20

% P

ati

en

ts w

ith

Ne

ga

tiv

e N

et

UF

* * * 0%

10%

20%

30%

40%

50%

Baseline Week 4 Week 13 Week 21

Control

Extraneal

8-HOUR DWELL 12-HOUR DWELL

* * *

* significant between treatment groups (p<0.001)

Page 39: ppt

39

Percentage of Patients with Negative Net UF Extraneal MIDAS Study — CAPD 8-Hour Dwell & 12-Hour Dwell 4.25% Dextrose

0%

10%

20%

30%

40%

50%

Baseline Week 3 Week 12 Week 20

% P

ati

en

ts w

ith

Ne

ga

tiv

e N

et

UF

0%

10%

20%

30%

40%

50%

Baseline Week 4 Week 13 Week 21

Control

Extraneal

8-HOUR DWELL 12-HOUR DWELL

Page 40: ppt

40

Efficacy Endpoints

Primary Endpoint

Net Ultrafiltration

Secondary Endpoints

Peritoneal Creatinine Clearance

Peritoneal Urea Clearance

Special Assessments from Study 131

Edema

Body weight

QoL

Page 41: ppt

41

Clearance of Creatinine & Urea Extraneal 130 Study — CAPD

Cle

aran

ce (

mL

/min

) fo

r th

e L

on

g D

wel

l

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Week 2 Week 4

Control (2.5%)

Extraneal

p<0.001 p=0.001

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Week 2 Week 4

Cle

aran

ce (

mL

/min

) fo

r th

e L

on

g D

wel

l

p=0.005 p=0.004

CREATININE UREA

** *

*

Page 42: ppt

42

Special Assessments from Long-term Study 131

Edema

Body Weight

Quality of Life

Page 43: ppt

43

Peripheral Edema Assessment Extraneal 131 Study — CAPD & APD

Usually assessed by same individual

0 - 3+ - Recorded on CRF

4+ - Recorded as Adverse Event

Page 44: ppt

44

Adverse Events for Edema Extraneal 131 Study — CAPD & APD

10.3%13.4%Other Edema

6.3%17.9%Peripheral Edema (p=0.002)

ExtranealN=175

ControlN=112

COSTART Term

Page 45: ppt

45

Special Assessments from Study 131

Edema

Body Weight

Quality of Life

Page 46: ppt

46

Body Weight

Important parameter in ESRD

Assesses:

Fluid balance - short term

Body composition - long term

Page 47: ppt

47

Body Weight – Before Drain Extraneal 131 Study — CAPD & APD

(N=47 Control, N=88 Extraneal)

Extraneal patients - maintained body weight at 52 weeks (mean change -0.03 kg)

Control patients - average increase of 2.33 kg at 52 weeks

(p=0.022 at 52 weeks)

Page 48: ppt

48

Special Assessments from Long-term Study 131

Edema

Body Weight

Quality of Life

Page 49: ppt

49

Quality of Life — KDQoL Extraneal 131 Study — CAPD & APD

Patients completing both Baseline and Week 52 (N=25 Control, 41 Extraneal):

Queried on 35 kidney-specific symptoms/problems

Short Form 36

Page 50: ppt

50

Quality of Life — KDQoL Results - SF36

Change in SF-36 Score: Baseline to Week 52Patients with Baseline and Week 52 Forms

-25

-20

-15

-10

-5

0

5

PF RP BP GH VT SF RE MH

Mea

n C

han

ge

in S

core

Extraneal

Control

**

* clinically significant result favoring Extraneal, ** favoring Dianeal

*

**

*

Page 51: ppt

51

Quality of Life — KDQOL Extraneal 131 Study — CAPD & APD

For patients completing both Baseline and Week 52 (N=25 Control, N=41 Extraneal):

35 Symptoms/Problems: 10 favored Extraneal, 5 favored Dextrose

Short Form 36

Domains: 4 favored Extraneal, 1 favored Dextrose

Health Transition Summary:

30% of Extraneal patients vs 4% of Control patients reported their health was much better as compared to one year ago (p=0.032)

Page 52: ppt

52

Extraneal Efficacy Conclusions

Superior UF compared to 1.5% or 2.5% Dextrose and comparable to 4.25% Dextrose

Significantly reduced number of patients with negative net UF compared to both 1.5% and 2.5% Dextrose and comparable to 4.25% Dextrose

Significantly increased peritoneal clearance of urea and creatinine compared to 2.5% Dextrose

Potential benefit in preventing weight gain and edema, and improving quality of life

Page 53: ppt

53

Safety Profile of Extraneal

Database

Observational Mortality Data

Adverse Events

Laboratory Values

Membrane Transport Characteristics

Page 54: ppt

54

Extraneal Clinical Database

840 Total Patients 347 Control, 493 Extraneal

Exposure Control 174.3 days average

Extraneal 232.5 days average 215 (43.6%) Extraneal patients exposed greater

than 6 months

155 (31.4%) Extraneal patients exposed greater than 12 months

Page 55: ppt

55

Patient Disposition (Withdrawals/Completions, All Studies)

7.5%4.9% Other

1.4%3.2% Protocol Violations

3.7%3.2% Deaths

13.4%11.8% Adverse Event

8.5%6.1% Transplantation

34.5%29.1%Prematurely Discontinued

65.5%70.9%Completed

EXTRANEAL N=493

CONTROL N=347

Page 56: ppt

56

Safety Profile of Extraneal

Database

Observational Mortality Data

Adverse Events

Laboratory Values

Membrane Transport Characteristics

Page 57: ppt

57

Observational MortalityExtraneal 131 Study: Original Data Collection

Each patient was followed until drop out or completion of 12 months.

Once a patient discontinued (early drop out or completer), he was observed for an additional 30 days to collect adverse events, including death.

Based on these data collection methods:

DeathsNumber of Patients

Treatment Group

%N

175

112

7.413EXTRANEAL

4.55Control

Page 58: ppt

58

Observational Mortality Extraneal 131 Study: Additional Data

Collection Additional information on 13-month status (dead or alive 395 days

after enrollment) was obtained for the patients who had not died and had not completed the 12-month study.

12-Month Mortality Rate@

Number of Deaths

Number of Patients

Treatment Group

11.7%

7.2%

175

112

20EXTRANEAL

9Control

@ From Kaplan-Meier estimation (Not Sig.)

12-Month Mortality Rate@

Number of Deaths

Number of Patients

Treatment Group

11.7%

7.2%

175

112

20EXTRANEAL

9Control

Page 59: ppt

59

0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400Days Until Death or Censor

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Pro

po

rtio

n S

urv

ivin

g

Treatment Group:ControlExtraneal

p=0.301 from the Log-Rank Test

All Follow-Up Time for Mortality Extraneal Study 131: Long-Term Safety Study in APD and

CAPD Patients

Page 60: ppt

60

Observational MortalityAll Studies (Other Than MIDAS-2)

Because of the limited database in Study 131, mortality results from all studies, other than MIDAS-2, were combined to describe the overall mortality.

Intent-to-treat methods were applied and all deaths were included. Some of these were after study participation.

244

189

Total Follow-Up Time (Patient-Yrs)

Deaths per 1000 Pt-Year

Number of Deaths

Number of Patients

Treatment Group

107

106

366

285

26EXTRANEAL

20Control

Page 61: ppt

61

Observational MortalityAll Studies (Other Than MIDAS-2)

Estimated Death Rates from the Kaplan-Meier Methods

27.6%

17.3%

10.4%

EXTRANEAL

0.51

0.36

1.32

Ratio of Death RatesControlMonth

7.9%12

54.0%

47.4%

24

18

Page 62: ppt

62

100 200 300 400 500 600 700 800Time to Death (Days)

00

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Pro

po

rtio

n S

urv

ivin

g

Treatment Group:ControlExtraneal

p=0.929 from Log-Rank Test

Kaplan-Meier Survival Curves for Time to Death

Using All Mortality From ISS Except MIDAS-2 (Uncontrolled)

Page 63: ppt

63

Observational MortalitySummary

Mortality information from all clinical studies was combined to better describe the experience for Extraneal.

There were 366 Extraneal patients in this integrated safety database.

These provide 244 patient-years of experience with Extraneal.

Survival times were comparable for Control and Extraneal Hazard Ratio: 1.03

90% Confidence Interval: [0.63, 1.68]

Page 64: ppt

64

Safety Profile of Extraneal

Database

Observational Mortality Data

Adverse Events

Laboratory Values

Membrane Transport Characteristics

Page 65: ppt

65

Extraneal All StudiesSafety - Adverse Events

0.29031.7%31.2%Pct. Of Patients with at least one Serious AE

p-ValueExtraneal (N=493)

Control (N=347)

0.33916.6%40.6%39.4%

3.5%

20.2%39.4%38.7%

1.7%

MildModerateSevereNot Reported

Most Severe AE

0.25040.1%28.2%31.7%

41.1%25.7%33.2%

NoneRelatedNot Reported

Most Related AE to Treatment

0.24087.0% 84.1%Pct. of Patients with at least one AE

Page 66: ppt

66

Adverse Events

Peritonitis

Rash

Page 67: ppt

67

Adverse Events

Peritonitis most frequent adverse event Control – 25.4%

Extraneal – 26.4%

Peritonitis most frequent serious adverse event - resulting in hospitalization Control - 8.6%

Extraneal - 5.3%

(p=0.013)

Page 68: ppt

68

Adverse Events

Of all adverse events, only Rash showed greater than 5 percentage points difference between groups

Page 69: ppt

69

Total Skin EventsIncidence Rates – All Studies, Unrelated and Related AEs

27.0%

10.1%

22.5%

4.6%

All SKIN EVENTS

RASH

1.8%0.3%DERM EXFOL

Extraneal (N=493)

Control (N=347)

COSTART Code

Page 70: ppt

70

Total Skin EventsIncidence Rates – All Studies, Related AEs

1.6%0.0%DERM EXFOL

5.5%1.7%RASH

9.9%4.0%All SKIN EVENTS

Extraneal (N=493)

Control(N=347)

COSTART Code

Page 71: ppt

71

Outcomes for Rash in Clinical Trials

6 patients withdrew/discontinued for rash, 1 for exfoliative dermatitis

All were in the Extraneal Group

No patient was hospitalized for rash

All rash events resolved

No anaphylaxis

No Stevens-Johnson Syndrome

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Safety Profile of Extraneal

Database

Observational Mortality Data

Adverse Events

Laboratory Values

Membrane Transport Characteristics

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Laboratory Value ChangesAt Last Visit, Between Groups

INCREASED:

Alkaline Phosphatase (130, 131 and 035 studies)

DECREASED:

Amylase-Assay Interference

Sodium

Chloride

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Serum Alkaline Phosphatase (U/L)

(130, 131 and 035 Studies)

Mean change

+4.039 Control

+19.073 Extraneal

Patients above normal range (31.0 - 115.0 U/L)

23.6% Control

33.5% Extraneal

Adverse Events for increased Alk. Phos.

1.7% Control

2.8% Extraneal

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Serum Sodium (mmol/L)All Studies

Mean change -0.272 Control

-2.771 Extraneal

Patients below normal range (135-148 mmol/L) 15.8% Control

32.5% Extraneal

Adverse Events for Hyponatremia 2.0% Control

2.2% Extraneal

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Serum Chloride (mmol/L)All Studies

Mean change +0.610 Control

-2.003 Extraneal

Patients below normal range (96-112 mmol/L) 32.9% Control

51.7% Extraneal

Adverse Events for hypochloremia 0.9% Control

1.6% Extraneal

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Safety Profile of Extraneal

Database

Observational Mortality Data

Adverse Events

Laboratory Values

Membrane Transport Characteristics

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Membrane Transport CharacteristicsMTAC for Creatinine, Urea and Glucose

*significantly different from baseline within group‡ significantly different between groups

0

10

20

Baseline Week 26 Week 52

Control

Extraneal

0

10

20

Baseline Week 26 Week 52

Control

Extraneal

0

10

20

Baseline Week 26 Week 52

Control

Extraneal

** ‡

CR

EA

TIN

INE

(m

L/m

in)

UR

EA

(m

L/m

in)

GL

UC

OS

E(m

L/m

in)

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Summary of Clinical Trial Results

EFFICACY

Increased Ultrafiltration

Reduced percentage of patients with negative net UF

Increased peritoneal creatinine and urea clearance

Potential benefit in preventing weight gain and edema, and improving quality of life

SAFETY

Safety profile comparable to current therapy

Rash most frequent related AE

Increases in alkaline phosphatase, decreases in sodium and chloride, with no known clinical relevance

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ExtranealOverall Summary

Patients on PD have limited therapy options for fluid management

Extraneal provides patients and their physicians a new dialysis solution that expands these options by sustaining effective ultrafiltration during the long dwell

The enhanced efficacy of the new solution is coupled with a safety profile comparable to existing solutions

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Proposed Indication

Extraneal is indicated for a single daily exchange for the long (8-16 hour) dwell during continuous ambulatory peritoneal dialysis (CAPD) or automated peritoneal dialysis (APD) for the management of chronic renal failure.


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