Trial Outcomes & Findings for Dasatinib in Combination With Zoledronic Acid for the Treatment of Breast Cancer With Bone Metastasis (NCT NCT00566618)

NCT ID: NCT00566618

Last Updated: 2022-02-25

Results Overview

Objective response rate is defined as the clinical benefit rate (complete and partial response) + stable disease \> 6 months in bone.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

31 participants

Primary outcome timeframe

6 months

Results posted on

2022-02-25

Participant Flow

Participants were enrolled and treated on protocol at the three recruiting sites (MD Anderson Cancer, University of Chicago and Duke Cancer Institute).

31 participants enrolled, 25 started treatment and 6 did not receive treatment.

Participant milestones

Participant milestones
Measure
Phase I Dasatinib (70 mg)
Dasatinib 70 mg twice daily. Zoledronic acid was administered using standard dosing as a 15-minute intravenous infusion on day 1 of a 28-day cycle. Dasatinib was taken orally daily on days 1-28 of the cycle. Dasatinib was given continuously unless patients developed toxicities requiring dose adjustment or treatment interruption.
Phase 1 Dasatinib (100 mg)
Dasatinib (100 mg) daily. Zoledronic acid was administered using standard dosing as a 15-minute intravenous infusion on day 1 of a 28-day cycle. Dasatinib was taken orally daily on days 1-28 of the cycle. Dasatinib was given continuously unless patients developed toxicities requiring dose adjustment or treatment interruption.
Phase II Drug Administration
Dasatinib 100 mg daily in combination with zoledronic acid 4 mg IV on day 1 of a 28-day cycle.
Overall Study
STARTED
1
6
18
Overall Study
COMPLETED
0
0
0
Overall Study
NOT COMPLETED
1
6
18

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Phase I/Phase II
n=25 Participants
PhI/PhII- Dasatinib 70 mg twice daily/ dasatinib 100 mg daily in combination with zoledronic acid 4 mg IV on day 1 of a 28-day cycle.
Age, Continuous
45 years
n=25 Participants
Sex: Female, Male
Female
25 Participants
n=25 Participants
Sex: Female, Male
Male
0 Participants
n=25 Participants
Region of Enrollment
United States
25 participants
n=25 Participants
Hormone Receptor
Positive
21 Participants
n=25 Participants
Hormone Receptor
Negative
4 Participants
n=25 Participants
Initial sites of metastases
Bone only
17 Participants
n=25 Participants
Initial sites of metastases
Lung
5 Participants
n=25 Participants
Initial sites of metastases
Lymph nodes
4 Participants
n=25 Participants
Initial sites of metastases
Liver
1 Participants
n=25 Participants
Prior endocrine therapy for metastatic disease
0
7 Participants
n=25 Participants
Prior endocrine therapy for metastatic disease
1
15 Participants
n=25 Participants
Prior endocrine therapy for metastatic disease
>=2
3 Participants
n=25 Participants
Prior chemotherapy for metastatic disease
0
23 Participants
n=25 Participants
Prior chemotherapy for metastatic disease
1
2 Participants
n=25 Participants

PRIMARY outcome

Timeframe: 6 months

Population: ITT, intent-to-treat analysis of all patients combined. The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The objective response in bone from time to initiation of therapy to \>6 months analysis are combined based on the published article. We have attempted to the best of our ability to locate the data for each phase but we were unsuccessful.

Objective response rate is defined as the clinical benefit rate (complete and partial response) + stable disease \> 6 months in bone.

Outcome measures

Outcome measures
Measure
Phase I/Phase II
n=25 Participants
PhI/PhII-Open Label dasatinib 100 mg daily in combination with zoledronic acid 4 mg IV on day 1 of a 28-day cycle
Objective Response in Bone From Time of Initiation of Therapy to > 6 Months
Central Review
8 Participants
Objective Response in Bone From Time of Initiation of Therapy to > 6 Months
Site Review
7 Participants

PRIMARY outcome

Timeframe: day 1 (+/- 48 hours) prior to therapy during cycle 2 and all subsequent cycles

To determine the maximum tolerated dose (MTD) and recommended phase II dose (RP2D) for dasatinib in combination with zoledronic acid.

Outcome measures

Outcome measures
Measure
Phase I/Phase II
n=7 Participants
PhI/PhII-Open Label dasatinib 100 mg daily in combination with zoledronic acid 4 mg IV on day 1 of a 28-day cycle
Phase I - Maximum Tolerated Dose (MTD) and Recommended Phase II Dose (RP2D) for Dasatinib in Combination With Zoledronic Acid
Dasatinib
100 mg
Phase I - Maximum Tolerated Dose (MTD) and Recommended Phase II Dose (RP2D) for Dasatinib in Combination With Zoledronic Acid
zoledronic acid
4 mg

Adverse Events

Phase I/Phase II

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Phase I/Phase II
n=25 participants at risk
PhI/PhII-Open Label dasatinib 100 mg daily in combination with zoledronic acid 4 mg IV on day 1 of a 28-day cycle
Blood and lymphatic system disorders
Anemia
12.0%
3/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
General disorders
Fatigue
36.0%
9/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Skin and subcutaneous tissue disorders
Rash
36.0%
9/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Gastrointestinal disorders
Nausea
24.0%
6/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
General disorders
Pain
36.0%
9/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Blood and lymphatic system disorders
Thrombocytopenia
4.0%
1/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Respiratory, thoracic and mediastinal disorders
Respiratory
4.0%
1/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
8.0%
2/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Respiratory, thoracic and mediastinal disorders
Vasomotor symptoms
16.0%
4/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Skin and subcutaneous tissue disorders
Pruritus
4.0%
1/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Skin and subcutaneous tissue disorders
Alopecia
16.0%
4/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Gastrointestinal disorders
Diarrhea
4.0%
1/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Gastrointestinal disorders
Constipation
12.0%
3/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
General disorders
Xerostomia
8.0%
2/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Gastrointestinal disorders
Vomiting
12.0%
3/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Infections and infestations
Infections (non-neutropenic)
12.0%
3/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Skin and subcutaneous tissue disorders
Edema
8.0%
2/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.
Nervous system disorders
Paresthesia
12.0%
3/25 • on day 1 (±48 hours) prior to therapy during subsequent cycles, up to 6 months
The PI, Stacy Moulder, and those affiliated with the protocol is no longer at the institution. The adverse events are combined based on the published article. We have attempted to the best of our ability to locate the AEs for each phase but we were unsuccessful.

Additional Information

Debu Tripathy, Chair, Breast Medical Oncology

UT MD Anderson Cancer Center

Phone: (713) 792-2817

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place