Trial Outcomes & Findings for Navitoclax and Abiraterone Acetate With or Without Hydroxychloroquine in Treating Patients With Progressive Metastatic Castrate Refractory Prostate Cancer (NCT NCT01828476)

NCT ID: NCT01828476

Last Updated: 2017-05-04

Results Overview

Characterize "biochemical response" to ABT-263 and Abiraterone and to ABT-263 in combination with hydroxychloroquine and Abiraterone by looking at PSA levels.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

13 participants

Primary outcome timeframe

5 years

Results posted on

2017-05-04

Participant Flow

Subjects were recruited through the Rutgers Cancer Institute of New Jersey. The study was open to accrual on 6/4/2013 and was closed by the Principal Investigator on 3/3/2016 due to slow accrual.

We are reporting results on 13 eligible patients. Arm A dose escalation was completed. The study was then closed to due to slow accrual and the Investigator leaving the organization.

Participant milestones

Participant milestones
Measure
ARM A - Dose Escalation
Dose level 0: Abiraterone 1000 mg po daily and ABT-263 150 mg po daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\* Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 350 mg po daily\* \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3. NOTE: The dose escalation for ABT-263 combined with abiraterone was completed first prior to dose escalation with ABT-263 combined with hydroxychloroquine and abiraterone. Following both dose escalation portions of the trial, patients will then, and only then, be assigned to Arm A or Arm B of the phase II portion of the trial on a rotating basis of every other patient.
ARM B - Dose Escalation
Dose level 0: Abiraterone 1000 mg po daily, ABT-263 150 mg po daily, Hydroxychloroquine 200 mg po BID daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\*, Hydroxychloroquine 400 mg po BID daily Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 325 mg po daily\*, Hydroxychloroquine 400 mg po BID daily \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3.
Overall Study
STARTED
13
0
Overall Study
COMPLETED
13
0
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Navitoclax and Abiraterone Acetate With or Without Hydroxychloroquine in Treating Patients With Progressive Metastatic Castrate Refractory Prostate Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
ARM A - Dose Escalation
n=13 Participants
Dose level 0: Abiraterone 1000 mg po daily and ABT-263 150 mg po daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\* Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 350 mg po daily\* \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3. NOTE: The dose escalation for ABT-263 combined with abiraterone was completed first prior to dose escalation with ABT-263 combined with hydroxychloroquine and abiraterone. Following both dose escalation portions of the trial, patients will then, and only then, be assigned to Arm A or Arm B of the phase II portion of the trial on a rotating basis of every other patient.
ARM B - Dose Escalation
Dose level 0: Abiraterone 1000 mg po daily, ABT-263 150 mg po daily, Hydroxychloroquine 200 mg po BID daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\*, Hydroxychloroquine 400 mg po BID daily Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 325 mg po daily\*, Hydroxychloroquine 400 mg po BID daily \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3.
Total
n=13 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
n=5 Participants
2 Participants
n=5 Participants
Age, Categorical
>=65 years
11 Participants
n=5 Participants
11 Participants
n=5 Participants
Age, Continuous
69 years
n=5 Participants
69 years
n=5 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Male
13 Participants
n=5 Participants
13 Participants
n=5 Participants
Region of Enrollment
United States
13 participants
n=5 Participants
13 participants
n=5 Participants

PRIMARY outcome

Timeframe: 5 years

Population: Study was terminated early and insufficient data was collected to assess this outcome measure.

Characterize "biochemical response" to ABT-263 and Abiraterone and to ABT-263 in combination with hydroxychloroquine and Abiraterone by looking at PSA levels.

Outcome measures

Outcome measures
Measure
ARM A
n=13 Participants
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Biochemical Response to ABT-263 and Abiraterone and to ABT-263 in Combination With Hydroxychloroquine and Abiraterone in Patients That Are Progressing on Abiraterone
0 Participants

SECONDARY outcome

Timeframe: 5 years

Population: Study was terminated early and insufficient data were collected to assess this outcome measure.

Outcome measures

Outcome measures
Measure
ARM A
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Time to PSA Progression
0
0

SECONDARY outcome

Timeframe: 5 years

Population: Study was terminated early and insufficient data were collected to assess this outcome measure.

Outcome measures

Outcome measures
Measure
ARM A
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Progression Free Survival
0
0

SECONDARY outcome

Timeframe: 5 years

Population: Study was terminated early and insufficent data was collected to assess this outcome measure.

Outcome measures

Outcome measures
Measure
ARM A
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Measurable Tumor Response in Patients With Measurable Disease
0
0

SECONDARY outcome

Timeframe: 5 years

Population: Study was terminated early and insufficient data was collected to assess this outcome measure.

Outcome measures

Outcome measures
Measure
ARM A
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Circulating Tumor Cells Pre-enrollment and During Therapy
0
0

SECONDARY outcome

Timeframe: 5 years

Population: Study was terminated warly and insufficient data was collected to assess this outcome measure.

Outcome measures

Outcome measures
Measure
ARM A
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Bcl-2 Family Protein Expression (Bcl-2, Bcl-XL, MCL-1) in Paraffin Blocks When Available by Immunohistochemistry
0
0

SECONDARY outcome

Timeframe: 5 years

Population: Study was terminated early and insufficient data was collected to assess this outcome measure.

Outcome measures

Outcome measures
Measure
ARM A
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Biomarkers of Autophagy Modulation by EM; and LC3, and/or p62 by Immunoblotting in PBMC and Tumor Tissue When Available
0
0

SECONDARY outcome

Timeframe: 5 years

Population: Study was terminated early and insufficient data was collected to assess this outcome measure.

Outcome measures

Outcome measures
Measure
ARM A
Abiraterone with ABT-263 Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B
ARM B
Abiraterone with both ABT-263 and Hydroxychloroquine Abiraterone: ARM A and ARM B ABT-263: ARM A and ARM B Hydroxychloroquine: ARM B
Overall Survival
0
0

Adverse Events

ARM A - Dose Escalation

Serious events: 1 serious events
Other events: 13 other events
Deaths: 0 deaths

ARM B - Dose Escalation

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

Serious adverse events

Serious adverse events
Measure
ARM A - Dose Escalation
n=13 participants at risk
Dose level 0: Abiraterone 1000 mg po daily and ABT-263 150 mg po daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\* Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 350 mg po daily\* \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3. NOTE: The dose escalation for ABT-263 combined with abiraterone was completed first prior to dose escalation with ABT-263 combined with hydroxychloroquine and abiraterone. Following both dose escalation portions of the trial, patients will then, and only then, be assigned to Arm A or Arm B of the phase II portion of the trial on a rotating basis of every other patient.
ARM B - Dose Escalation
Dose level 0: Abiraterone 1000 mg po daily, ABT-263 150 mg po daily, Hydroxychloroquine 200 mg po BID daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\*, Hydroxychloroquine 400 mg po BID daily Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 325 mg po daily\*, Hydroxychloroquine 400 mg po BID daily \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3.
Metabolism and nutrition disorders
Hypokalemia
7.7%
1/13 • Number of events 1
0/0

Other adverse events

Other adverse events
Measure
ARM A - Dose Escalation
n=13 participants at risk
Dose level 0: Abiraterone 1000 mg po daily and ABT-263 150 mg po daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\* Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 350 mg po daily\* \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3. NOTE: The dose escalation for ABT-263 combined with abiraterone was completed first prior to dose escalation with ABT-263 combined with hydroxychloroquine and abiraterone. Following both dose escalation portions of the trial, patients will then, and only then, be assigned to Arm A or Arm B of the phase II portion of the trial on a rotating basis of every other patient.
ARM B - Dose Escalation
Dose level 0: Abiraterone 1000 mg po daily, ABT-263 150 mg po daily, Hydroxychloroquine 200 mg po BID daily Dose level 1: Abiraterone 1000 mg po daily and ABT-263 250 mg po daily\*, Hydroxychloroquine 400 mg po BID daily Dose level 2 (maximum planned phase II dose): Abiraterone 1000 mg po daily and ABT-263 325 mg po daily\*, Hydroxychloroquine 400 mg po BID daily \* All patients at the 250 mg/day and 325 mg/day doses will start at 150 mg/day for the first 7 days (on Day -7) and escalated to their respective full dose on Day 1 if no DLT is observed and platelets are \>50,000/mm3.
Gastrointestinal disorders
Nausea
23.1%
3/13 • Number of events 4
0/0
Gastrointestinal disorders
Diarrhea
23.1%
3/13 • Number of events 13
0/0
Investigations
Platelet count decreased
84.6%
11/13 • Number of events 27
0/0
Investigations
Neutrophil count decreased
46.2%
6/13 • Number of events 19
0/0
Blood and lymphatic system disorders
Anemia
23.1%
3/13 • Number of events 5
0/0
General disorders
Fatigue
61.5%
8/13 • Number of events 12
0/0
Metabolism and nutrition disorders
Anorexia
46.2%
6/13 • Number of events 9
0/0
Gastrointestinal disorders
Constipation
7.7%
1/13 • Number of events 1
0/0
Infections and infestations
Rash pustular
15.4%
2/13 • Number of events 2
0/0
Gastrointestinal disorders
Flatulence
15.4%
2/13 • Number of events 2
0/0
Metabolism and nutrition disorders
Hypocalcemia
7.7%
1/13 • Number of events 1
0/0
Metabolism and nutrition disorders
Hyponatremia
7.7%
1/13 • Number of events 1
0/0
Investigations
Aspartate aminotransferase increased
23.1%
3/13 • Number of events 3
0/0
Metabolism and nutrition disorders
Hyperglycemia
7.7%
1/13 • Number of events 1
0/0
Gastrointestinal disorders
Gastroesophageal reflux disease
15.4%
2/13 • Number of events 2
0/0
Respiratory, thoracic and mediastinal disorders
Cough
7.7%
1/13 • Number of events 1
0/0
Musculoskeletal and connective tissue disorders
Myalgia
7.7%
1/13 • Number of events 1
0/0

Additional Information

Mark Stein, MD

Rutgers Cancer Institute of New Jersey

Phone: 732-235-5773

Results disclosure agreements

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