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CAELYX CAELYX CLINICAL TRIALS CLINICAL TRIALS Metastatic Breast Cancer Metastatic Breast Cancer (MBC) (MBC)

CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

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CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC). Clinical Benefits of CAELYX in Breast Cancer. Anthracycline with cardiac sparing effect Significantly reduced risk of cardiotoxicity Preserves cardiac function for patients who can benefit from long-term anthracycline therapy - PowerPoint PPT Presentation

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Page 1: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYXCAELYXCLINICAL TRIALSCLINICAL TRIALS

Metastatic Breast Cancer (MBC)Metastatic Breast Cancer (MBC)

Page 2: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Clinical Benefits of CAELYX in Breast Cancer

Anthracycline with cardiac sparing effect

– Significantly reduced risk of cardiotoxicity

– Preserves cardiac function for patients who can benefit from long-term anthracycline therapy

Comparable efficacy vs conventional doxorubicin Clinical evidence demonstrates improved safety profile:

Lower incidence: Higher incidence:– Nausea/vomiting – Hand-foot syndrome– Alopecia (HFS)– Myelosuppression – Stomatitis– Cardiotoxicity

Page 3: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX – Current Indications

Monotherapy for MBC in patients who are at increased cardiac risk

– Several studies demonstrating antitumor activity and acceptable tolerability in MBC and LABC

Advanced ovarian cancer in women who have failed a first-line platinum-based chemotherapy regimen

AIDS-related KS in patients with low CD4 counts (<200 CD4 lymphocytes/mm3) and extensive mucocutaneous or visceral disease

Page 4: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX in Breast Cancer: Target Populations

Rechallenge (eg, 1st-line treatment of MBC that responded to an anthracycline-containing regimen in adjuvant setting)

Combination therapy with trastuzumab

Patients with cardiovascular risk factors (eg, patients who present with hypertension, prior mediastinal irradiation, or a history of heart disease)

Elderly patients

Patients for whom the risk of specific toxicities are of significant concern (eg, alopecia, myelosuppression, N/V)

Page 5: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX Monotherapy

Sequential single-agent chemotherapy represents a reasonable option for patients with MBC

Monotherapy or sequential single-agent chemotherapy may be especially suitable for:

– Elderly or patients with poorer performance status

– Those unable to tolerate the toxicity ofcombination therapy

– Patients with slowly growing tumors

Page 6: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Single-Agent CAELYX for MBC: Phase II Studies

Ranson (JCO 1997)

Lyass (Cancer 2000)

No. of patients 71 45

Pt. population ~ 40% previously-treated

100% pretreated;69% ≥ 2 regimens; 71% previous anthracycline

CAEYLX regimen 45-50 mg/m2 q 3-4 wk x 6 cycles

35-70 mg/m2 q 3-6 wk

Efficacy – ORR 31% 33%

Safety Gr 3/4 neutropenia Gr 3/4 mucositis HFS

27%32%5% of cycles (45 mg/m2 Q 4 w)

Mild; dose-dependentDose-dependentSchedule-dependent

Page 7: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Single-Agent CAELYX for MBC: Phase II Studies

Coleman(Proc. SABCS 2002)

No. of pts (evaluable) 106

Pt. population Randomized; ≥ 65 yo or contraindication to standard anthra.; 33% pretreated

CAEYLX regimen (A) 60 mg/m2 q 6 wk -or- (B) 50 mg/m2 q 4 wk

Efficacy – ORR 20-23%

Safety Gr 3/4 neutropenia Gr 3/4 mucositis HFS

NR31% (A)/ 18% (B)11% (B)

Page 8: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Single-Agent CAELYX for MBC: Phase II Studies

Schmid(Proc. SABCS 2004)

Mlineritsch(Onkologie 2004)

No. of patients (evaluable) 24 (19) 30

Pt. population Heavily pretreated (med. prior regimens, 4); 88% prior anthra.; 83% prior taxane; cum. dox < 400 mg/m2 at entry

Failure of prior chemo for MBC (10% prior adjuvant anthra)

CAEYLX regimen 25 mg/m2 q 2 wk 45 mg/m2 q 4 wk

Efficacy – ORR 5% (CB* = 21%) 31%

Safety Gr 3/4 neutropenia Gr 3/4 mucositis HFS

0013% (no grade 4)

3% FN030% (all ≤ grade 2)

*Clinical Benefit =PR + SD > 6 mo.; 3 of 4 received prior anthra.

Page 9: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX 50 vs 40 mg/m2 in MBC: A Phase II Trial

Phase II

N = 53

Previously treated MBC

TREATMENT

CAELYX 40 mg/m2 q 4 wk

Al-Batran et al. Breast Cancer Res Treat. 2004; 88:S204. Abstract 5060. Updated based on poster.

Compared results to 50 mg/m2 trial of similar design

Page 10: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX 50 vs 40 mg/m2 in MBC: Outcomes

Al-Batran et al. Breast Cancer Res Treat. 2004; 88:S204. Abstract 5060. Updated based on poster.

50 mg/m2

(n=46)40 mg/m2

(n=45)

Efficacy ORR PFS, median OS, median

17%4.6 mo

13.8 mo

13%3.3 mo9.8 mo

Safety

Dose reduction, % pts

Median no. of cycles

Toxicity

Grade 3/4 HFS

Grade 3/4 Stomatitis

Grade 3/4 Neutropenia

28%

5

7%

17%

16%

7%

4

0%

2%

9%

Page 11: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX 40 mg/m2 q 4 wks*

Docetaxel 36 mg/m2 d 1, 8, 15 q 4 wks*

CAELYX vs Docetaxel in MBC: A Randomized Phase II Trial

Study Design• 1st-line MBC• Open-label,

crossover• Phase II

Eligibility• Prior adjuvant

anthracycline or taxane if ≥ 6 mo

• ≤ 300 mg/m2 of prior doxorubicin

• Normal LVEF

Yardley et al. Breast Cancer Res Treat. 2004;88:S203. Abstract 5057.

RANDOMIZATION

N = 73

*Max. 8 cycles prior to crossover†At time of progression

N = 36

N = 37

CROSSOVER†

Page 12: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs Docetaxel: Interim Results

CAELYX*

(n=36)

Docetaxel†

(n=37)

Median no. of cycles 2.5 4

Response rate (initial regimen) 17% 22%

Progression-free survival 6.9 mo 5.4 mo

Overall survival 15.8 mo 13.6 mo

Yardley et al. Breast Cancer Res Treat. 2004;88:S203. Abstract 5057. Updated based on poster.

*22 patients received drug on crossover; †18 patients received drug on crossover

Page 13: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs Docetaxel: Toxicity% of Pts

Grade 3 and 4 Toxicity CAELYX(n=36)

Docetaxel(n=37)

Neutropenia 14 14

Anemia 3 5

Transfusions 6 11

Fatigue 3 30

Arthralgia 3 11

Nausea 6 16

HFS 11 5

Stomatitis 14 5

Hospitalization 17 35

Yardley et al. Breast Cancer Res Treat. 2004;88:S203. Abstract 5057. Updated based on poster.

Page 14: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX 50 mg/m2 q 4 wks*

Conventional doxorubicin 60 mg/m2 q 3 wks†

*Until PD or unacceptable toxicity.

†Until PD or cumulative anthracycline dose of 550 mg/m2.

CAELYX vs Conventional Doxorubicin in First-line Treatment

of MBC: Phase III Trial

Study Design• 1st-line MBC

(Stages IIIB/IV)• Open-label,

multicenter

Stratification• Prior adjuvant

anthracycline• Cardiac risk factor• Bone only mets

O’Brien et al. Ann Oncol. 2004;15:440-449.

RANDOMIZATION

N = 509 68 international sites

Page 15: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs Doxorubicin Study Endpoints

Primary– Progression-free survival (non-inferiority)– Cardiotoxicity:

Cardiac event as defined by:• LVEF decrease of ≥ 20% from baseline if resting LVEF

remained in normal range

• LVEF decrease of ≥ 10% if resting LVEF became abnormal

Patients also assessed for clinical signs/symptoms of CHF

Secondary– Overall survival – Overall response rate– Tolerability

O’Brien et al. Ann Oncol. 2004;15:440-449.

Page 16: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Baseline Patient Demographics

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX(N=254)

Conventional Doxorubicin

(N=255)

Median age, years 59 58

Menopausal status, % Premenopausal Postmenopausal

3169

3562

Estrogen receptor status, % ER + ER -

3521

4023

WHO performance status, % 0 1 2

54379

494011

Page 17: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Baseline Disease Characteristics

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX(N=254)

Conventional Doxorubicin

(N=255)

No. of metastatic sites, %

1

2

≥ 3

37

33

30

41

31

28

Metastatic site classification, %

Visceral

Nonvisceral

Bone metastases only

59

32

9

56

34

10

Page 18: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Baseline DemographicsPrior Therapy

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX(N=254)

Conventional Doxorubicin

(N=255)

Prior therapy*, %

Adjuvant only Advanced disease only Adjuvant and advanced disease

65

5258

62

427

12

Prior conventional anthracycline, % 15 16

Baseline cum. anthracycline (mg/m2), % < 150 150-300 > 300

212< 1

2131

Previous radiation therapy, % 47 49*Chemotherapy or hormonal therapy.

Page 19: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Baseline Cardiac Risk Factors

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX(N=254)

Conventional Doxorubicin

(N=255)

No cardiac risk factors, % 52 53

Prior cardiac risk factors, %

Prior mediastinal irradiation

History of heart disease

History of hypertension

Age ≥ 65

≥ 2 risk factors

48

4

0.4

12

15

17

47

3

0.4

17

13

15

Page 20: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Results: Treatment Summary

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX(N=254)

Conventional Doxorubicin

(N=255)

Median duration of therapy, wks (cycles) 21 (5.3) 19 (6.3)

Mean dose per cycle, mg/m2 48 58

Mean cycle length, days 29.6 22.3

Median cum. anthracycline exposure*, mg/m2

293 361

Drug discontinuation, %

24 24

*Including prior anthracycline therapy

Page 21: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs Doxorubicin Response Rates*

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX(N=209)

Conventional Doxorubicin

(N=201)

Overall response rate (CR + PR) 33% 38%

Complete response (CR) 3% 4%

Partial response (PR) 29% 34%

Stable disease (SD) 25% 25%

Progressive disease (PD) 18% 11%

Median duration of response 7.3 mo 7.1 mo

*Measurable disease (n=410); 25% in each group had no radiographic assessment of response.

Page 22: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0 5 10 15 20 25 30 35

Months From Randomization

Pro

bab

ility

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX vs Doxorubicin Progression-Free Survival (PFS)

CAELYXConventional doxorubicin

Median PFS, mo. 6.9 7.8HR = 1.00 (95% CI: 0.82-1.22)

Intent-to-Treat Population

Page 23: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs DoxorubicinOverall Survival (OS)

Intent-to-Treat Population

HR = 0.94 (95% CI: 0.74-1.19); P = .59

CAELYXConventional doxorubicin

Median OS, mo. 21 22

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0 5 10 15 20 25 30 35

Months From Randomization

Pro

bab

ility

O’Brien et al. Ann Oncol. 2004;15:440-449.

Page 24: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs Doxorubicin- Cardiac Events -

O’Brien et al. Ann Oncol. 2004;15:440-449.

CAELYX(N=254)

Conventional Doxorubicin

(N=255)

LVEF decrease

LVEF decrease + signs/symptoms of CHF

LVEF decrease alone

10

0

10

48

10

38

Signs and symptoms of CHF without LVEF decrease

2 2

Patients who stopped therapy due to cardiac event

6 36

Page 25: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs Doxorubicin Cardiac Events vs Cumulative Dose

O’Brien et al. Ann Oncol. 2004;15:440-449.

100

90

80

70

60

50

40

30

20

10

0

0 50 100 150 200 300250 400 450 500 550 600350Cumulative Anthracycline Dose

Kap

lan

-Mei

er E

stim

ates

of

Car

dia

c E

ven

ts

CAELYX

Conventional Doxorubicin

HR = 3.16 (95% CI: 1.58-6.31); P < .001

Page 26: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs DoxorubicinLVEF vs Cumulative Dose

All < 300 ≥ 300 to < 450 ≥ 450

CAELYX

Conventional Doxorubicin

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

Med

ian

% C

han

ge

Fro

m B

asel

ine

Cumulative Anthracycline Dose (mg/m2)

O’Brien et al. Ann Oncol. 2004;15:440-449.

n=152

n=187

n=62

n=58

n=54

n=74

n=36

n=55

Page 27: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX vs Doxorubicin Cardiotoxicity in High-Risk Patients

NCardiotoxicity

EventsHR 95% CI

≥ 65 years of age

CAELYX

Doxorubicin

Prior adjuvant anthracycline

CAELYX

Doxorubicin

Cardiac Risk factor

CAELYX

Doxorubicin

78

66

38

40

122

121

0

9

1

11

5

21

N/A

7.27

2.7

N/A

0.93-56.80

1.01-7.18

O’Brien et al. Ann Oncol. 2004;15:440-449.

Page 28: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Treatment-Related Adverse EventsAll Grades

% P

ati

ents

12

20

37

19

4

23 22

2

16

66

53

31

1013 15

48

0

10

20

30

40

50

60

70

80

CAELYX ConventionalDoxorubicin

*

*Grade 2 alopecia = complete hair loss; grade 3-4 NA. O’Brien et al. Ann Oncol. 2004;15:440-449.

Page 29: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Treatment-Related Adverse Events: Alopecia

CAELYX(N=254)

Conventional Doxorubicin

(N=255)

Overall incidence 20% 66%

Pronounced or total hair loss 7% 54%

Page 30: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

13

1 24 5

02

5 48

2 2

17

0

5

10

15

20

25

30

35

40

45

50

CAELYX ConventionalDoxorubicin

Treatment-Related Adverse EventsGrades 3/4*

O’Brien et al. Ann Oncol. 2004;15:440-449.

% P

ati

ents

*Grade 3-4 alopecia NA ; grade 2 alopecia = complete hair loss; cardiotoxicity not included.

Page 31: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Study Conclusions

CAELYX provides comparable efficacy to conventional doxorubicin

CAELYX has significantly less cardiotoxicity than conventional doxorubicin

– 7-fold reduction in risk of cardiotoxicity with CAELYX in pts previously treated with anthracyclines

CAELYX has a distinct side effect profile

– Significantly less alopecia, N/V, myelosuppression– Manageable HFS

CAELYX has an improved risk-benefit profile

O’Brien et al. Ann Oncol. 2004;15:440-449.

Page 32: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX 50 mg/m2 q 4 weeks

Study Design• MBC after taxane

failure (Stage IIIB/IV)• Open-label, multicenter• Phase III

Stratification• Number of prior

regimens (1 or 2)• Presence of bone

metastases only (yes/no)

CAELYX in MBC After Taxane Failure

Vinorelbine 30 mg/m2 weekly- OR -

Mitomycin C 10 mg/m2 d 1, 28Vinblastine 5 mg/m2 d 1, 14, 28, 42*

301 Patients 52 International sites

*Days 1-56 for 2 cycles; subsequent cycles: Mitomycin C on d 1 and vinblastine D1, 21; Mitomycin C dosed every 6 to 8 wks.Keller et al. J Clin Oncol. 2004;22:3893-3901.

RANDOMIZATION

N = 150

N = 129

N = 22

Page 33: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX in MBC After Taxane Failure Study Endpoints

Primary– Progression-free survival

Secondary– Overall survival– Overall response rate– Response duration– Event-free survival– Tolerability– QOL

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 34: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Baseline CharacteristicsCAELYX(N=150)

Comparator(N=151)

Age, years 56 56

Postmenopausal, % 54 56

Estrogen Receptor Status, % Positive Negative

4733

4832

Sites of Metastasis, % Visceral Bone only

6310

6610

Previous Chemotherapy Regimens, n 1 2 1 only bone mets 2 only bone mets

222323

222323

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 35: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Prior Therapy

CAELYX(N=150)

Comparator(N=151)

Adjuvant therapy, % 78 73

Hormonal therapy, % 65 59

Chemotherapy, % Adjuvant only Advanced disease only Adjuvant plus advanced disease

42274

42769

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 36: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Prior Therapy (cont.)

CAELYX(N=150)

Comparator(N=151)

Regimens for advanced dz, % 1 2

5635

5236

Anthracycline exposure, % 83 84

Cumulative prior anthracycline dose (mg/m2), % 0-300 >300-450 >450

61175

52263

Primary anthracycline resistance, % 39 35

Radiation therapy, % 77 71

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 37: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX in MBC After Taxane Failure Response Rates

CAELYX(N=115)

Comparator(N=117)

Overall Response (CR + PR)

Complete Response (CR)

Partial Response (PR)

Stable Disease (SD)

Progressive Disease (PD)

10%

2%

8%

28%

32%

12%

2%

10%

28%

32%

Median Duration of Response 5.7 months 6.0 months

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 38: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX in MBC After Taxane Failure Progression-Free Survival (PFS)

Months

Pro

gre

ssio

n-F

ree

Su

rviv

al

CAELYX Comparator

Median PFS, mo. 2.9 2.5

HR = 1.26 (95% CI: 0.98-1.62)

Keller et al. J Clin Oncol. 2004;22:3893-3901.

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0 3 6 9 12

Page 39: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX in MBC After Taxane Failure Overall Survival (OS)

Ov

era

ll S

urv

iva

l

0.0

0.2

0.4

0.6

0.8

1.0

0 3 6 9 12 15 18Months

CAELYX Comparator

Median OS*, mo. 11 9

HR = 1.05 (95% CI: 0.82-1.33)

*Data updated in Keller et al. J Clin Oncol. 2004;22:3893-3901.

Data on file Schering-Plough.

Page 40: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Progression-Free Survival by Subgroup

Subgroups analyzed retrospectively based on protocol-eligible patients.

Keller et al. J Clin Oncol. 2004;22:3893-3901.

CAELYX is effective independent of patient subsets

Patient Population/Subgroups

Protocol Evaluable (115/117)

Age < 55 (49/55)

Age ≥ 55 (66/62)

Performance ≥ 80% (93/99)

Performance < 70% (22/18)

Bone Only (11/11)

Not Bone Only (104/106)

With Any Anthracycline Exposure (92/96)

With No Anthracycline Exposure (23/21)

With Anthracycline Resistance (46/34)

With No Anthracycline Resistance (69/80)

Estrogen Recept: Negative (41/40)

Estrogen Recept: Positive (54/56)

Number of Chemo Regimens < 2 (72/72)

Number of Chemo Regimens ≥ 2 (43/45)

Disease-Free Interval ≤ 24 (52/65)

Disease-Free Interval > 24 (63/52)

Hazard Ratio with a 95% C.I.0 0.8 1 2 3

Page 41: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Treatment-Related Adverse EventsAll Grades

37

20

3

31

20

3

14

22

1

5

9

0.8

21

5

27

1714

0.8

4

11

16 15

0

9

0

23

18

5 5

0

5 5

32

0

5

10

15

20

25

30

35

40

45

50

HFS

Fatig

ue

Alope

cia

Nause

a

Vomiti

ng

Neutro

penia

Muc

ositis

Stom

atiti

s

Neuro

pathy

Const

ipat

ion

Asthe

nia

CAELYX (n=150) Vinorelbine (n=129) Mitomycin C + Vinblastine (n=22)

Per

cen

t o

f P

atie

nts

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 42: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Treatment-Related Adverse EventsGrades 3/4

19

43

42

35

0 01

02

7

3

8

0 0 0.82

4

0

5 5

0 0 0 0 0 0 00

5

10

15

20

25

30

HFS

Fatig

ue

Nause

a

Vomiti

ng

Neutro

penia

Muc

ositis

Stom

atiti

s

Neuro

pathy

Const

ipat

ion

Asthe

nia

CAELYX (n=150) Vinorelbine (n=129) Mitomycin C + Vinblastine (n=22)

Per

cen

t o

f P

atie

nts

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 43: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Cardiac Toxicity

Defined per protocol as a decrease in LVEF of ≥ 15 points from baseline or a ≥ 5-point decrease from baseline if level is below LLN for the institution

LVEF changes assessed only in patients receiving CAELYX– 22 patients had LVEF changes consistent with protocol-

defined cardiac toxicity

– No correlation with cumulative anthracycline dose

– 4 patients dc’d drug due to LVEF decrease

No patient developed clinical CHF

Page 44: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Study Conclusions

CAELYX demonstrates activity in MBC after taxane failure:

– PFS: 2.9 months (vs 2.5 months comparator)– OS: 11.0 months (vs 9.0 months comparator)

CAELYX has comparable efficacy to vinorelbine/mitomycin for MBC refractory to taxane-based therapies

– q 4 wk CAELYX = q wk vinorelbine administration

CAELYX represents a therapeutic option for pts with heavily pretreated, taxane-refractory MBC

Keller et al. J Clin Oncol. 2004;22:3893-3901.

Page 45: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX Combination CAELYX Combination Therapy for MBCTherapy for MBC

Page 46: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Rationale for CAELYX Combinations

Preclinical synergy

Non-overlapping mechanisms/toxicities

Polychemotherapy, in particular with taxane-anthracycline-based regimens, is especially suitable for patients with:

– Life-threatening disease– Symptomatic visceral metastatic disease– Quickly growing tumors– Ability to tolerate the toxicity of combination therapy

Page 47: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX CombinationsBreast Cancer

Investigators Combination Response

Overmoyer 1998; Silverman 1999; Srimuninnimit 2002

PLD + cyclophosphamide 41%-68%

Jones 2000; Gogas 2002; Rigatos 2003; Vorobiof 2004; Fulfaro 2004

PLD + paclitaxel 56%-75%

Sparano 2001; Holmes 2003; Alexopoulos 2004; Morabito 2004

PLD + docetaxel 32%-64%

Martin 2002; Gebbia 2002; Ardavanis 2003

PLD + vinorelbine 36%-68%

Rivera 2003; Fabi 2004 PLD + gemcitabine 48%-52%

Guastalla 2003 PLD + cyclophosphamide + 5-fluorouracil

Page 48: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX + Cyclophosphamide in BC

Silverman (Proc. ASCO 1999)

Srimuninnimit(Proc. ASCO 2002)

No. of patients / med. cycles 20 / NR 30 / NR

Pt. population Untreated (n=6) or previously treated MBC; prior adjuvant anthra. (n=3)

LABC: T3 (n=7); T4 (n=23)

Regimen CAELYX Cyclophosphamide

Q 3 wk30 mg/m2 d 1600 mg/m2 d 1

Q 3 wk x 335 mg/m2 d 1600 mg/m2 d 1

Efficacy – ORR* 60% 73%

Safety G 3/4 neutropenia FN G 3/4 HFS Cardiac

Moderate 25%NRMild 15%NR

37%NR3%NR

Page 49: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX + Paclitaxel in MBCVorobiof (Breast 2004)

Rigatos (Oncol Rep 2003)

No. of patients

No. of cycles, median

34

6

24

Not reported

Pt. population 1st line for MBC; 41% received adjuvant chemo- or chemoendocrine therapy (anthra.: 2 pts)

1st line for MBC; all evaluable pts received prior adjuvant chemotherapy

Regimen CAELYX Paclitaxel

Q 3 wk30 mg/m2

175 mg/m2

Q 3 wk30 mg/m2

175 mg/m2

Efficacy – ORR 73% 70% (23 evaluable)

Safety per patient G 3/4 neutropenia FN G 3/4 HFS Cardiac

2 toxic deaths21%6%29%1 pt LVEF ↓ > 20%

22%Not reported48%1-arrhythmia1-LVEF ↓ (not defined)

Page 50: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

Neoadjuvant CAELYX + Paclitaxel in LABC

Phase II

N = 35

Newly diagnosed LABC

TREATMENT

CAELYX 35 mg/m2 d 1

+

Paclitaxel 175 mg/m2 d 1

q 3 wk

RESULTSORR 71% (CR 17%, PR

54%)

pCR after 4-6 cycles 3 pts

Grade 3 HFS 9%

Grade 3/4 neutropenia 15%

Alopecia 83% Gogas et al. Ann Oncol. 2002;13:1737-1742.

Page 51: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX + Docetaxel in MBC

Alexopoulos(Ann Oncol 2004)

Holmes(Proc. SABCS 2003)

No. of patients / med. cycles 44 / 6 48 / 4

Pt. population 1st line for MBC; 46% received prior adjuvant chemotherapy; 23% anthra.-based

1st line for MBC; 48% received prior adjuvant chemotherapy

Regimen CAELYX Docetaxel

Q 3 wk30 mg/m2

75 mg/m2

Q wk x 3; Q 28 d10 mg/m2

25 mg/m2

Efficacy – ORR* 64% 32%

Safety G 3/4 neutropenia FN G 3/4 HFS Cardiac

18%9%2%Anthra-pretx: mean Δ in LVEF of 4%

2%4%6%NR

*Assessable pts

Page 52: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX + Docetaxel in MBC

Morabito(Breast Caner Res Treat 2004)

No. of patients / med. cycles 33/4

Pt. population 1st line for MBC; LABC pts included and evaluated separately

Regimen CAELYX Docetaxel

Q 3 wk35 mg/m2

35 mg/m2 d 2, 9

Efficacy – ORR* 64%

Safety G 3/4 neutropenia FN G 3/4 HFS Cardiac

9%0%14%NR

*Assessable pts

Page 53: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX + Vinorelbine in MBCMartin(Clin Breast Ca 2004)

Gebbia (Oncology 2002)

Ardavanis(ASCO 2003)

No. of patients / med. cycles

35 / 6 30 (18 / 6†) 32 / 3

Pt. population Prior anthra. therapy in adjuvant or metastatic setting

100% received prior adjuvant chemotherapy; no pt had prior chemo for MBC

Taxane- or anthra.-pretx’d

Regimen CAELYX Vinorelbine

Q 4 wk35 mg/m2 d 130 mg/m2 d 1

Q 15 d20 mg/m2

30 mg/m2

Q 4 wk40 mg/m2 d 125 mg/m2 d 1, 15

Efficacy – ORR* 35% 68% (63%†) 41%

Safety G 3/4 neutropenia FN G 3/4 HFS Cardiac

44% (G 4)9%6%3 pt had LVEF ↓ (not defined)

39%†

--†

01 pt had 15% ↓ in LVEF†

53%--NRNR

*Assessable pts†Phase II portion

Page 54: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX + Gemcitabine in MBCRivera(JCO 2003)

Fabi (ASCO 2004)

No. of patients / med. cycles 49 / 6 28 / 5

Pt. Population Previously untreated; 57% received prior adjuvant chemo; 39% prior adjuvant anthra.

Untreated (n=15) or previously treated MBC (1 or 2 prior regimen); 39% received prior anthra.

Regimen CAELYX Gemcitabine

Q 3 wk24 mg/m2 d 1800 mg/m2 d 1, 8

Q 3 wk25 mg/m2 d 1800 mg/m2 d 1, 8

Efficacy – ORR* ORR anthra. pretx’d

52%58%

48%36%

Safety G 3/4 neutropenia FN G 3/4 HFS Cardiac

74%2%6%1 pt LVEF ↓ of 21% (had prior med. XRT)

39%3.5%----

*Assessable pts

Page 55: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX Combinations Conclusions

Phase II studies of CAELYX combinations demonstrate considerable activity in the treatment of MBC

Most combinations utilize a CAELYX dosage of 25-35 mg/m2 on a Q 3 wk schedule

Regimens have been generally well tolerated

CAELYX is a rational substitute for conventional anthracyclines in combination therapy for MBC

Page 56: CAELYX CLINICAL TRIALS Metastatic Breast Cancer (MBC)

CAELYX in Breast Cancer: Conclusions

CAELYX is a novel anthracycline with established efficacy in MBC

CAELYX is associated with a distinct safety profile– Reduced rates of alopecia, nausea/vomiting, and

myelosuppression; manageable hand-foot syndrome; and, preservation of cardiac function

CAELYX offers a convenient regimen for various subgroups of MBC patients, including in the setting of anthracycline rechallenge

Phase II studies of CAELYX combinations demonstrate considerable activity and tolerability

CAELYX is a rational substitute for conventional doxorubicin in combination therapy for MBC