Trial Outcomes & Findings for Study of Dasatinib (BMS-354825) in Patients With Advanced Estrogen/Progesterone Receptor-positive (ER+/PR+) or Her2/Neu-positive (Her2/Neu+)Breast Cancer (NCT NCT00371345)

NCT ID: NCT00371345

Last Updated: 2011-04-26

Results Overview

Tumor response was assessed according RECIST criteria: PR=at least 30% reduction in the sum of the LD of all target lesions in reference to the baseline sum LD, CR=Disappearance of all non-target lesions. Objective tumor response was defined as a PR or CR.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

92 participants

Primary outcome timeframe

From day of first treatment through Week 25 or at time of discontinuation from study treatment.

Results posted on

2011-04-26

Participant Flow

A total of 92 participants were enrolled in the study. Twenty-two participants did not enter the treatment phase, 13 because they did not meet entry criteria and 9 for other reasons. The 70 participants treated in the single-arm were stratified by tumor type into Her2-amplified and ER/PgR positive tumors.

Participant milestones

Participant milestones
Measure
Her2/Neu-amplified Tumor Type
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor Type
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
Overall Study
STARTED
24
46
Overall Study
COMPLETED
0
0
Overall Study
NOT COMPLETED
24
46

Reasons for withdrawal

Reasons for withdrawal
Measure
Her2/Neu-amplified Tumor Type
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor Type
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
Overall Study
Disease Progression
21
35
Overall Study
Study Drug Toxicity
1
7
Overall Study
Adverse event(AE Unrelated to Study Drug
1
2
Overall Study
Participant Request
1
1
Overall Study
Participant Withdrew Consent
0
1

Baseline Characteristics

Study of Dasatinib (BMS-354825) in Patients With Advanced Estrogen/Progesterone Receptor-positive (ER+/PR+) or Her2/Neu-positive (Her2/Neu+)Breast Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Her2/Neu-amplified Tumor Type
n=24 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor Type
n=46 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
Total
n=70 Participants
Total of all reporting groups
Age Continuous
52.2 years
n=5 Participants
54.3 years
n=7 Participants
53.6 years
n=5 Participants
Age, Customized
<=50 years
8 participants
n=5 Participants
16 participants
n=7 Participants
24 participants
n=5 Participants
Age, Customized
>=50 years
16 participants
n=5 Participants
30 participants
n=7 Participants
46 participants
n=5 Participants
Sex: Female, Male
Female
24 Participants
n=5 Participants
46 Participants
n=7 Participants
70 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
France
9 participants
n=5 Participants
2 participants
n=7 Participants
11 participants
n=5 Participants
Region of Enrollment
United States
10 participants
n=5 Participants
17 participants
n=7 Participants
27 participants
n=5 Participants
Region of Enrollment
Argentina
0 participants
n=5 Participants
6 participants
n=7 Participants
6 participants
n=5 Participants
Region of Enrollment
Spain
4 participants
n=5 Participants
8 participants
n=7 Participants
12 participants
n=5 Participants
Region of Enrollment
Belgium
1 participants
n=5 Participants
10 participants
n=7 Participants
11 participants
n=5 Participants
Region of Enrollment
Peru
0 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
Region of Enrollment
Italy
0 participants
n=5 Participants
2 participants
n=7 Participants
2 participants
n=5 Participants

PRIMARY outcome

Timeframe: From day of first treatment through Week 25 or at time of discontinuation from study treatment.

Population: Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment. One participant was not evaluable (no on-study tumor assessment for other reason).

Tumor response was assessed according RECIST criteria: PR=at least 30% reduction in the sum of the LD of all target lesions in reference to the baseline sum LD, CR=Disappearance of all non-target lesions. Objective tumor response was defined as a PR or CR.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=9 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=31 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
n=14 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Number of Participants With Objective Response
0 participants
1 participants
1 participants
1 participants

PRIMARY outcome

Timeframe: From day of first treatment through Week 25 or at time of discontinuation from study treatment

Population: Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).

Tumor response was assessed according RECIST criteria: PR=at least 30% reduction in the sum of the LD of all target lesions in reference to the baseline sum LD, CR=Disappearance of all non-target lesions. Percentage of participants with objective tumor response was determined by the number of participants with PR or CR divided by the total number of response-evaluable participants.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=9 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=31 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
n=14 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
n=69 Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Percentage of Participants With Objective Response
0 percentage of participants
Interval 0.0 to 0.0
11.11 percentage of participants
Interval 0.28 to 48.25
3.23 percentage of participants
Interval 0.08 to 16.7
7.14 percentage of participants
Interval 0.18 to 33.87
4.35 percentage of participants
Interval 0.91 to 12.18

PRIMARY outcome

Timeframe: From day of first treatment through Week 25 or at time of discontinuation from study treatment

Population: Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).

Response assessed using Response Evaluation Criteria In Solid Tumors (RECIST) criteria: Complete Response (CR)=disappearance of all target and non-target lesions; Partial Response (PR)=≥30% decrease in sum of longest diameter (LD) of target lesions; SD=small changes not meeting above criteria; Progressive Disease (PD)=appearance of new lesion(s), ≥ 20% increase in the sum of the LD of target lesions, or progression of existing non-target lesions; Clinical Progression (cPD)=deterioration related to disease requiring treatment without radiographic PD.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=9 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=31 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
n=14 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Best Overall Response
Progressive Disease (PD)
12 participants
4 participants
15 participants
7 participants
Best Overall Response
Stable Disease (SD)
2 participants
2 participants
5 participants
3 participants
Best Overall Response
Clinical Progression (cPD)
0 participants
1 participants
3 participants
1 participants
Best Overall Response
Discontinuation Due To Drug Toxicity (Tox)
1 participants
1 participants
5 participants
2 participants
Best Overall Response
No Reassessment -Reasons Other Than Tox/PD
0 participants
0 participants
1 participants
0 participants
Best Overall Response
Complete Response (CR)
0 participants
0 participants
0 participants
0 participants
Best Overall Response
Unconfirmed partial response
0 participants
0 participants
1 participants
0 participants
Best Overall Response
Partial Response (PR)
0 participants
1 participants
1 participants
1 participants

SECONDARY outcome

Timeframe: From day of first treatment through Week 25 or at time of discontinuation from study treatment.

Population: Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).

Disease control was defined in response-evaluable participants as having a best response of CR or PR (or uPR), or SD at/after 16 Weeks.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=1 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=1 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=5 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
n=2 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Number of Response-evaluable Participants With Disease Control (DCR)
Participants with CR
0 participants
0 participants
0 participants
0 participants
Number of Response-evaluable Participants With Disease Control (DCR)
Participants with unconfirmed PR (uCR)
0 participants
0 participants
1 participants
0 participants
Number of Response-evaluable Participants With Disease Control (DCR)
Participants with PR
0 participants
1 participants
1 participants
1 participants
Number of Response-evaluable Participants With Disease Control (DCR)
Participants with SD ≥16 weeks
1 participants
0 participants
3 participants
1 participants
Number of Response-evaluable Participants With Disease Control (DCR)
Total Participants with DCR
1 participants
1 participants
5 participants
2 participants

SECONDARY outcome

Timeframe: From day of first treatment through Week 25 or at time of discontinuation from study treatment.

Population: Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).

Disease control was defined in response-evaluable participants as having a best response of objective response (CR or PR) or SD at/after 16 Weeks.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=9 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=31 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
n=14 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Percentage of Response-evaluable Participants With Disease Control (DCR)
6.67 percentage of participants
Interval 0.17 to 31.95
11.11 percentage of participants
Interval 0.28 to 48.25
16.13 percentage of participants
Interval 5.54 to 33.73
14.29 percentage of participants
Interval 1.78 to 42.81

SECONDARY outcome

Timeframe: From Baseline (Week 0) to time of PD or discontinuation of last participant from study treatment (Week 45)

Population: All-Treated subjects: All subjects who received at least one dose of dasatinib. The longest on-study observation for a participant was 45 weeks.

PFS was defined as time from first dosing date until the first date that Progressive Disease (PD) was observed.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=24 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=46 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=70 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Number of Participants Who Progressed
22 participants
39 participants
61 participants

SECONDARY outcome

Timeframe: From Baseline (Week 0) to time of PD or discontinuation of last participant from study treatment (Week 45)

Population: All-Treated subjects: All subjects who received at least one dose of dasatinib. The longest on-study observation for a participant was 45 weeks.

PFS was defined as time from first dosing date until the first date that PD was observed. The distribution of PFS was estimated using the Kaplan-Meier product limit method. A two-sided 95% confidence interval (Brookmeyer and Crowley method) for the median PFS was computed.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=24 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=46 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Median Progression Free Survival (PFS)
8.1 weeks
Interval 7.1 to 9.3
8.1 weeks
Interval 7.7 to 8.7

SECONDARY outcome

Timeframe: At Weeks 9, 17, and 25

Population: Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).

PFS was defined as time from first dosing date until the first date that progressive disease (PD) was observed.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=9 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=32 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
n=14 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Percentage of Participants With Progression-free Survival (PFS) at Weeks 9, 17, and 25
Week 9
21 percentage of participants
50 percentage of participants
32 percentage of participants
33 percentage of participants
Percentage of Participants With Progression-free Survival (PFS) at Weeks 9, 17, and 25
Week 17
7 percentage of participants
25 percentage of participants
18 percentage of participants
25 percentage of participants
Percentage of Participants With Progression-free Survival (PFS) at Weeks 9, 17, and 25
Week 25
0 percentage of participants
13 percentage of participants
7 percentage of participants
17 percentage of participants

SECONDARY outcome

Timeframe: the time (in weeks) between the first date that criteria for PR were met and the first date that PD or cPD was observed

Population: Of 69 response-evaluable participants, three had an objective response of PR.

Duration of objective response was defined as the time (in weeks) between the first date that criteria for CR or PR were met and the first date that progressive disease (PD) or clinical progressive disease (cPD) was observed. Date of death was used as PD date for participants who died before reporting PD. Participants who neither progressed nor died were censored at the date of their last tumor assessment.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=1 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=1 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=1 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Duration Of Objective Response
31.14 weeks
18.14 weeks
8.29 weeks

SECONDARY outcome

Timeframe: Continuous assessment beginning at initiation of study drug until 30 days after the last dose of study drug

Population: All-Treated participants: All participants who received at least one dose of dasatinib.

AE=any new untoward medical occurrence or worsening of a pre-existing medical condition which does not necessarily have a causal relationship with this treatment. AEs graded according to Common Terminology Criteria for Adverse Events (CTCAE) Version 3.0.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=23 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=47 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Number of Participants With Death, Adverse Events (AEs), and AEs Leading to Discontinuation
All Deaths
6 participants
6 participants
Number of Participants With Death, Adverse Events (AEs), and AEs Leading to Discontinuation
All AEs
23 participants
47 participants
Number of Participants With Death, Adverse Events (AEs), and AEs Leading to Discontinuation
AEs Leading to Discontinuation
5 participants
11 participants

SECONDARY outcome

Timeframe: Continuous assessment beginning at initiation of study drug until 30 days after the last dose of study drug

Population: All-Treated participants: All participants who received at least one dose of dasatinib.

Normal ranges for laboratory abnormalities: granulocytes=1.5x10\^3-8x10\^3 mm\^3 (range may have varied by institution); hemoglobin=12-16 g/dL; platelets=150-440x10\^9c/L; partial thromboplastin time=27-37.1 seconds; alkaline phosphatase=38-126 U/L; alanine aminotransferase=15-48 U/L; aspartate aminotransferase=14-38 U/L; creatine=0.7-1.1 mg/dL; hypokalemia (potassium \[K\])=3.5-5mEq/L; hyponatremia (sodium \[Na\])=135-145 mEq/L; phosphorous=2.4-4.5 mg/dL; bilirubin=0-1.2. Grade (Gr) 1=Mild, Gr 2=Moderate, Gr 3=Severe, Gr 4=Life-threatening/disabling, Gr 5=Death.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=23 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=47 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Platelet Count
0 participants
1 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Partial Thromboplastin Time
1 participants
0 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Alkaline Phosphatase
0 participants
1 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Alanine Aminotransferase
0 participants
1 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Hyponatremia
0 participants
1 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Bilirubin
0 participants
1 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Granulocytes
1 participants
1 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Hemoglobin
0 participants
1 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Aspartate Aminotransferase
1 participants
3 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Creatinine
1 participants
0 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Hypokalemia
1 participants
0 participants
Number of Participants With On-study CTCAE Version 3.0 Grade 3-4 Laboratory Abnormalities
Phosphorous
2 participants
1 participants

SECONDARY outcome

Timeframe: Continuous assessment beginning at initiation of study drug until 30 days after the last dose of study drug

Population: All-Treated participants: All participants who received at least one dose of dasatinib.

AEs and SAEs considered possibly, probably, or certainly related to study treatment, graded according to CTCAE Version 3.0 (Grade 1=Mild, Grade 2=Moderate, Grade 3=Severe, Grade 4=Life-threatening or disabling, Grade 5=Death). SAE=any untoward medical occurrence that at any dose: results in death, is life-threatening, requires inpatient hospitalization or causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, results in development of drug dependency or drug abuse, is an important medical event.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=23 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=47 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Number of Participants With Serious AEs (SAEs), Drug-related AEs, Drug-related SAEs, and Drug-Related Grade 3 AEs
Drug-related AEs
22 participants
44 participants
Number of Participants With Serious AEs (SAEs), Drug-related AEs, Drug-related SAEs, and Drug-Related Grade 3 AEs
SAEs
9 participants
11 participants
Number of Participants With Serious AEs (SAEs), Drug-related AEs, Drug-related SAEs, and Drug-Related Grade 3 AEs
Drug-related SAEs
6 participants
7 participants
Number of Participants With Serious AEs (SAEs), Drug-related AEs, Drug-related SAEs, and Drug-Related Grade 3 AEs
Drug-related Grade 3 AEs
9 participants
15 participants

SECONDARY outcome

Timeframe: Continuous assessment beginning at initiation of study drug until 30 days after the last dose of study drug

Population: All-Treated participants: All participants who received at least one dose of dasatinib.

Notable drug-related AEs for dasatinib include gastrointestinal symptoms (diarrhea, nausea, vomiting and abdominal pain), fatigue, lethargy, headache, rash, fever, pleural effusion, and dyspnea.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=23 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=47 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Number Of Participants With Notable Drug-related AEs
Pleural Effusion
9 participants
12 participants
Number Of Participants With Notable Drug-related AEs
Dyspnea
9 participants
10 participants
Number Of Participants With Notable Drug-related AEs
Diarrhea
10 participants
22 participants
Number Of Participants With Notable Drug-related AEs
Nausea
8 participants
16 participants
Number Of Participants With Notable Drug-related AEs
Abdominal Pain
2 participants
11 participants
Number Of Participants With Notable Drug-related AEs
Fatigue
3 participants
17 participants
Number Of Participants With Notable Drug-related AEs
Rash
8 participants
11 participants

SECONDARY outcome

Timeframe: PK assessment was performed at Week 3 visit (Day 15 ±4 days). Blood samples were obtained at Time = 0 hours, and at 1, 3 and 6 hours after each dose, and a trough sample was obtained immediately prior to any dose (~12 hours).

Population: Number of Participants Analyzed=All Treated Participants with samples for PK analysis, n=number of participants at specified time point with samples for PK analysis

Blood samples (3 mL) were used for measurement of dasatinib plasma concentration and metabolites.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=17 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=14 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Pharmacokinetics (PK): Plasma Concentration of Dasatinib at Week 3
Time 0 hours (100 mg, n=16; 70 mg, n=13)
10.82 ng/ml
Standard Deviation 9.17
6.96 ng/ml
Standard Deviation 2.90
Pharmacokinetics (PK): Plasma Concentration of Dasatinib at Week 3
Time 1 hour (100 mg, n=16; 70 mg, n=14)
107.09 ng/ml
Standard Deviation 64.55
77.21 ng/ml
Standard Deviation 61.86
Pharmacokinetics (PK): Plasma Concentration of Dasatinib at Week 3
Time 3 hours (100 mg, n=17; 70 mg, n=14)
58.01 ng/ml
Standard Deviation 37.88
30.21 ng/ml
Standard Deviation 18.42
Pharmacokinetics (PK): Plasma Concentration of Dasatinib at Week 3
Time 6 hours (100 mg, n=17; 70 mg, n=13)
23.19 ng/ml
Standard Deviation 15.20
12.64 ng/ml
Standard Deviation 5.58
Pharmacokinetics (PK): Plasma Concentration of Dasatinib at Week 3
Time 12 hours (100 mg, n=16; 70 mg, n=9)
11.88 ng/ml
Standard Deviation 6.40
7.41 ng/ml
Standard Deviation 5.08

SECONDARY outcome

Timeframe: PK assessment was performed at Week 7 or 9 visit. Blood samples were obtained at Time = 0 hours, and at 1, 3 and 6 hours after each dose, and a trough sample was obtained immediately prior to any dose (~12 hours).

Population: Number of Participants Analyzed=All Treated Participants with samples for PK analysis, n=number of participants at specified time point with samples for PK analysis

Blood samples (3 mL) were used for measurement of dasatinib plasma concentration and metabolites.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=5 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=9 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
n=1 Participants
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
PK: Plasma Concentration of Dasatinib at Week 7 or Week 9
Time 6 hours (100 mg, n=5; 70 mg, n=8; 50 mg, n=1)
23.58 ng/ml
Standard Deviation 8.65
13.03 ng/ml
Standard Deviation 3.34
35.91 ng/ml
Standard Deviation 0.00
PK: Plasma Concentration of Dasatinib at Week 7 or Week 9
Time 12 hours (100 mg, n=4; 70 mg, n=6; 50 mg, n=1
10.52 ng/ml
Standard Deviation 3.55
5.00 ng/ml
Standard Deviation 2.26
9.02 ng/ml
Standard Deviation 0.00
PK: Plasma Concentration of Dasatinib at Week 7 or Week 9
Time 0 hours (100 mg, n=5; 70 mg, n=7; 50 mg, n=1)
9.49 ng/ml
Standard Deviation 4.94
6.62 ng/ml
Standard Deviation 3.54
6.06 ng/ml
Standard Deviation 0.00
PK: Plasma Concentration of Dasatinib at Week 7 or Week 9
Time 1 hour (100 mg, n=5; 70 mg, n=8; 50 mg, n=1)
131.09 ng/ml
Standard Deviation 57.52
49.28 ng/ml
Standard Deviation 37.97
4.75 ng/ml
Standard Deviation 0.00
PK: Plasma Concentration of Dasatinib at Week 7 or Week 9
Time 3 hours (100 mg, n=5; 70 mg, n=9; 50 mg, n=1)
55.26 ng/ml
Standard Deviation 23.65
42.27 ng/ml
Standard Deviation 21.94
35.74 ng/ml
Standard Deviation 0.00

SECONDARY outcome

Timeframe: At Baseline and Week 3 of treatment (Day 15 ±4 days)

Population: Number of Participants Analyzed=All Treated Participants with samples for PD analysis, n=number of participants at specified time point with samples for PD analysis

Collagen Type IV is a circulating marker related to the modulation of the vascular endothelial growth factor (VEGF)-pathway. An assay of Collagen Type IV in plasma was performed by ELISA.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=29 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=19 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Pharmacodynamics: Percent Change From Baseline In Plasma Level of Collagen Type IV at Week 3 in Participants With and Without DCR
Participants with no DCR (n=27, n=16)
32.07 percent change
Interval 23.58 to 41.15
35.92 percent change
Interval 25.72 to 46.94
Pharmacodynamics: Percent Change From Baseline In Plasma Level of Collagen Type IV at Week 3 in Participants With and Without DCR
Participants with DCR (n=2, n=3)
22.01 percent change
Interval 11.21 to 33.87
40.74 percent change
Interval 10.81 to 78.75
Pharmacodynamics: Percent Change From Baseline In Plasma Level of Collagen Type IV at Week 3 in Participants With and Without DCR
All Participants (n=29, n=19)
31.35 percent change
Interval 23.46 to 39.76
36.67 percent change
Interval 27.74 to 46.21

SECONDARY outcome

Timeframe: Week 5

Population: Number of Participants Analyzed=All Treated Participants with samples for PD analysis, n=number of participants at specified time point with samples for PD analysis

Collagen Type IV is a circulating marker related to the modulation of the vascular endothelial growth factor (VEGF)-pathway. An assay of Collagen Type IV in plasma was performed by ELISA.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=23 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Pharmacodynamics: Percent Change From Baseline In Plasma Level of Collagen Type IV at Week 5 in Participants With and Without DCR
Participants with no DCR (n=20, n=12)
45.37 percent change
Interval 33.43 to 58.38
28.45 percent change
Interval -2.25 to 68.8
Pharmacodynamics: Percent Change From Baseline In Plasma Level of Collagen Type IV at Week 5 in Participants With and Without DCR
Participants with DCR (n=3, n=3)
17.13 percent change
Interval -11.57 to 55.14
64.51 percent change
Interval 34.18 to 101.68
Pharmacodynamics: Percent Change From Baseline In Plasma Level of Collagen Type IV at Week 5 in Participants With and Without DCR
All Participants (n=23, n=15)
41.33 percent change
Interval 30.41 to 53.18
34.97 percent change
Interval 8.48 to 67.92

SECONDARY outcome

Timeframe: At Baseline and Week 3 of treatment (Day 15 ±4 days)

Population: Number of Participants Analyzed=All Treated Participants with samples for PD analysis, n=number of participants at specified time point with samples for PD analysis

VEGF-stimulated disruption of the cadherin-catenin complex leads to tumor cell invasion and metastasis. VEGFR2 plasma levels were assayed by ELISA as a marker of VEGF pathway modulation.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=29 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Pharmacodynamics: Percent Change From Baseline In Plasma Level of VEGFR2 at Week 3 in Participants With and Without DCR
Participants with no DCR (n=27, n=16)
21.88 percent change
Interval 15.98 to 28.08
23.61 percent change
Interval 20.41 to 27.17
Pharmacodynamics: Percent Change From Baseline In Plasma Level of VEGFR2 at Week 3 in Participants With and Without DCR
Participants with DCR (n=2, n=3)
14.77 percent change
Interval 6.25 to 23.97
-5.03 percent change
Interval -55.67 to 103.43
Pharmacodynamics: Percent Change From Baseline In Plasma Level of VEGFR2 at Week 3 in Participants With and Without DCR
All Participants (n=29, n=19)
21.37 percent change
Interval 15.88 to 27.13
18.57 percent change
Interval 9.95 to 27.86

SECONDARY outcome

Timeframe: At Baseline and Week 5 of treatment

Population: Number of Participants Analyzed=All Treated Participants with samples for PD analysis, n=number of participants at specified time point with samples for PD analysis

VEGF-stimulated disruption of the cadherin-catenin complex leads to tumor cell invasion and metastasis. VEGFR2 plasma levels were assayed by ELISA as a marker of VEGF pathway modulation.

Outcome measures

Outcome measures
Measure
Her2/Neu-amplified Tumor, 70 mg Twice Daily (BID) Dasatinib
n=23 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
Her2/Neu-amplified Tumor, 100 mg BID
n=15 Participants
Participants with a Human epidermal growth factor (Her2/neu)-amplified tumor type (defined as 3+ by immunohistochemistry \[IHC\] or positive by fluorescent or chromogenic in situ hybridization \[FISH or CISH\] regardless of estrogen receptor \[ER\]/progesterone receptor \[PgR\] status) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
ER and/or PgR Positive Tumor, 70 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 70 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 140 mg.
ER and/or PgR Positive Tumor, 100 mg BID Dasatinib
Participants with ER and/or PgR positive tumor types (defined as \>10% of cells positive by IHC \[unless Her2/neu-amplified\]) received orally 100 mg of dasatinib twice daily (BID) for a total daily dose (TDD) of 200 mg.
All Response-evaluable Participants
Evaluable population (n=69): Response Evaluable=treated participants with ≥1 measurable lesion at baseline and ≥1 on-study tumor assessment; Non-responders=treated participants with no on-study tumor response assessment due to rapid disease progression/dasatinib toxicity. One participant was not evaluable (no on-study tumor assessment).
Pharmacodynamics: Percent Change From Baseline In Plasma Level of VEGFR2 at Week 5 in Participants With and Without DCR
Participants with no DCR (n=20, n=12)
27.23 percent change
Interval 22.53 to 32.1
26.36 percent change
Interval 20.85 to 32.13
Pharmacodynamics: Percent Change From Baseline In Plasma Level of VEGFR2 at Week 5 in Participants With and Without DCR
Participants with DCR (n=3, n=3)
16.46 percent change
Interval 8.27 to 25.27
37.25 percent change
Interval 23.08 to 53.05
Pharmacodynamics: Percent Change From Baseline In Plasma Level of VEGFR2 at Week 5 in Participants With and Without DCR
All Participants (n=23, n=15)
25.77 percent change
Interval 21.51 to 30.18
28.47 percent change
Interval 23.48 to 33.66

Adverse Events

Dasatinib

Serious events: 20 serious events
Other events: 65 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Dasatinib
n=70 participants at risk
Dasatinib was administered orally at 70 mg BID (TDD=140 mg) or 100 mg BID (TDD=200 mg).
Investigations
WEIGHT INCREASED
1.4%
1/70
Nervous system disorders
HEADACHE
2.9%
2/70
Nervous system disorders
HEMIPARESIS
1.4%
1/70
Nervous system disorders
BRAIN OEDEMA
1.4%
1/70
Gastrointestinal disorders
NAUSEA
2.9%
2/70
Gastrointestinal disorders
VOMITING
1.4%
1/70
Gastrointestinal disorders
DIARRHOEA
2.9%
2/70
Gastrointestinal disorders
ABDOMINAL PAIN
1.4%
1/70
Gastrointestinal disorders
ABDOMINAL PAIN LOWER
1.4%
1/70
Infections and infestations
PNEUMONIA
1.4%
1/70
Infections and infestations
SINUSITIS
1.4%
1/70
Infections and infestations
LOBAR PNEUMONIA
1.4%
1/70
Renal and urinary disorders
RENAL FAILURE ACUTE
1.4%
1/70
Metabolism and nutrition disorders
DEHYDRATION
1.4%
1/70
Metabolism and nutrition disorders
FLUID RETENTION
1.4%
1/70
Skin and subcutaneous tissue disorders
SWELLING FACE
1.4%
1/70
Injury, poisoning and procedural complications
FALL
1.4%
1/70
Injury, poisoning and procedural complications
TOOTH INJURY
1.4%
1/70
Musculoskeletal and connective tissue disorders
BACK PAIN
1.4%
1/70
Musculoskeletal and connective tissue disorders
MUSCULOSKELETAL PAIN
1.4%
1/70
Musculoskeletal and connective tissue disorders
MUSCULOSKELETAL CHEST PAIN
1.4%
1/70
Respiratory, thoracic and mediastinal disorders
DYSPNOEA
4.3%
3/70
Respiratory, thoracic and mediastinal disorders
PLEURAL EFFUSION
7.1%
5/70
Respiratory, thoracic and mediastinal disorders
PRODUCTIVE COUGH
1.4%
1/70
Respiratory, thoracic and mediastinal disorders
PULMONARY EMBOLISM
1.4%
1/70
General disorders
FATIGUE
2.9%
2/70
General disorders
PYREXIA
1.4%
1/70
General disorders
OEDEMA PERIPHERAL
1.4%
1/70
General disorders
GENERAL PHYSICAL HEALTH DETERIORATION
4.3%
3/70
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
MALIGNANT NEOPLASM PROGRESSION
1.4%
1/70

Other adverse events

Other adverse events
Measure
Dasatinib
n=70 participants at risk
Dasatinib was administered orally at 70 mg BID (TDD=140 mg) or 100 mg BID (TDD=200 mg).
Eye disorders
LACRIMATION INCREASED
5.7%
4/70
Investigations
WEIGHT DECREASED
11.4%
8/70
Investigations
HAEMOGLOBIN DECREASED
5.7%
4/70
Investigations
ALANINE AMINOTRANSFERASE
7.1%
5/70
Investigations
ASPARTATE AMINOTRANSFERASE
5.7%
4/70
Investigations
ALANINE AMINOTRANSFERASE INCREASED
14.3%
10/70
Investigations
ASPARTATE AMINOTRANSFERASE INCREASED
17.1%
12/70
Investigations
BLOOD ALKALINE PHOSPHATASE INCREASED
8.6%
6/70
Cardiac disorders
PERICARDIAL EFFUSION
10.0%
7/70
Psychiatric disorders
INSOMNIA
5.7%
4/70
Nervous system disorders
HEADACHE
40.0%
28/70
Nervous system disorders
DIZZINESS
7.1%
5/70
Gastrointestinal disorders
NAUSEA
37.1%
26/70
Gastrointestinal disorders
VOMITING
24.3%
17/70
Gastrointestinal disorders
DIARRHOEA
48.6%
34/70
Gastrointestinal disorders
DYSPEPSIA
5.7%
4/70
Gastrointestinal disorders
CONSTIPATION
10.0%
7/70
Gastrointestinal disorders
ABDOMINAL PAIN
21.4%
15/70
Gastrointestinal disorders
ABDOMINAL DISTENSION
5.7%
4/70
Gastrointestinal disorders
ABDOMINAL PAIN UPPER
12.9%
9/70
Metabolism and nutrition disorders
ANOREXIA
24.3%
17/70
Blood and lymphatic system disorders
ANAEMIA
8.6%
6/70
Skin and subcutaneous tissue disorders
RASH
27.1%
19/70
Skin and subcutaneous tissue disorders
ALOPECIA
5.7%
4/70
Musculoskeletal and connective tissue disorders
MYALGIA
8.6%
6/70
Musculoskeletal and connective tissue disorders
BACK PAIN
7.1%
5/70
Musculoskeletal and connective tissue disorders
ARTHRALGIA
14.3%
10/70
Musculoskeletal and connective tissue disorders
MUSCULOSKELETAL CHEST PAIN
7.1%
5/70
Respiratory, thoracic and mediastinal disorders
COUGH
15.7%
11/70
Respiratory, thoracic and mediastinal disorders
DYSPNOEA
34.3%
24/70
Respiratory, thoracic and mediastinal disorders
PLEURAL EFFUSION
27.1%
19/70
General disorders
CHILLS
8.6%
6/70
General disorders
FATIGUE
27.1%
19/70
General disorders
PYREXIA
20.0%
14/70
General disorders
ASTHENIA
34.3%
24/70
General disorders
CHEST PAIN
7.1%
5/70

Additional Information

BMS Study Director

Bristol-Myers Squibb

Results disclosure agreements

  • Principal investigator is a sponsor employee Bristol-Myers Squibb Co. agreements with investigators vary; constant is our right to embargo communications regarding trial results prior to public release for a period ≤60 days from submittal for review. We will not prohibit investigators from publishing, but will prohibit the disclosure of previously undisclosed confidential information other than study results, and request postponement of single-center publications until after disclosure of the clinical trial's primary publication.
  • Publication restrictions are in place

Restriction type: OTHER