Trial Outcomes & Findings for Clofarabine and Cytarabine in Treating Older Patients With AML or High-Risk MDS (NCT NCT00839982)

NCT ID: NCT00839982

Last Updated: 2017-07-11

Results Overview

Dose limiting toxicity (DLT) consists of grade 3-4 non-hematologic toxicity at least possibly related to study drug. Exceptions include neutropenic fever; drug-related fever; alopecia; anorexia; inadequately treated nausea, vomiting and/or diarrhea; and grade 3/4 increase in ALT, AST, or bilirubin recovering to \< grade 2 by 7 days. Prolonged grade 2 myelosuppression lasting longer than 49 days in patients who don't proceed to additional cytotoxic therapy is considered a DLT. The MTD or recommended phase II dose is the highest dose level at which no more than 1 patient out of 6 experiences DLT.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

35 participants

Primary outcome timeframe

Outcomes by day 30

Results posted on

2017-07-11

Participant Flow

Participant milestones

Participant milestones
Measure
Dose Level 1
Patients receive clofarabine 10mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 2
Patients receive clofarabine 20mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 3
Patients receive clofarabine 25mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 4
Patients receive clofarabine 30mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Overall Study
STARTED
4
26
2
3
Overall Study
COMPLETED
4
26
2
3
Overall Study
NOT COMPLETED
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Clofarabine and Cytarabine in Treating Older Patients With AML or High-Risk MDS

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Treatment (Chemotherapy)
n=35 Participants
Patients receive clofarabine PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
3 Participants
n=5 Participants
Age, Categorical
>=65 years
32 Participants
n=5 Participants
Age, Continuous
72 years
n=5 Participants
Sex: Female, Male
Female
11 Participants
n=5 Participants
Sex: Female, Male
Male
24 Participants
n=5 Participants
Region of Enrollment
United States
35 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Outcomes by day 30

Dose limiting toxicity (DLT) consists of grade 3-4 non-hematologic toxicity at least possibly related to study drug. Exceptions include neutropenic fever; drug-related fever; alopecia; anorexia; inadequately treated nausea, vomiting and/or diarrhea; and grade 3/4 increase in ALT, AST, or bilirubin recovering to \< grade 2 by 7 days. Prolonged grade 2 myelosuppression lasting longer than 49 days in patients who don't proceed to additional cytotoxic therapy is considered a DLT. The MTD or recommended phase II dose is the highest dose level at which no more than 1 patient out of 6 experiences DLT.

Outcome measures

Outcome measures
Measure
Dose Level 1
n=4 Participants
Patients receive clofarabine 10 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 2
n=26 Participants
Patients receive clofarabine 20 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 3
n=2 Participants
Patients receive clofarabine 25 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 4
n=3 Participants
Patients receive clofarabine 30 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Number of Patients With Dose Limiting Toxicity
0 Participants
4 Participants
2 Participants
2 Participants

PRIMARY outcome

Timeframe: up to 5 years

We identified 20 mg/d for 5 d as the maximum tolerated dose (MTD) of oral clofarabine.

Outcome measures

Outcome measures
Measure
Dose Level 1
n=35 Participants
Patients receive clofarabine 10 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 2
Patients receive clofarabine 20 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 3
Patients receive clofarabine 25 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 4
Patients receive clofarabine 30 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Maximum Tolerated Dose
20 mg/day

SECONDARY outcome

Timeframe: Up to 5 years

CR = no evidence of leukemia with complete blood count recovery (ANC \>1,000 and PLTS \>100k) CRi = no evidence of leukemia but with incomplete blood count recovery

Outcome measures

Outcome measures
Measure
Dose Level 1
n=4 Participants
Patients receive clofarabine 10 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 2
n=26 Participants
Patients receive clofarabine 20 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 3
n=2 Participants
Patients receive clofarabine 25 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 4
n=3 Participants
Patients receive clofarabine 30 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Treatment Response
CR
1 Participants
10 Participants
1 Participants
0 Participants
Treatment Response
CRi
0 Participants
1 Participants
0 Participants
0 Participants
Treatment Response
No CR
3 Participants
15 Participants
1 Participants
3 Participants

SECONDARY outcome

Timeframe: Up to 5 years

Median disease-free survival

Outcome measures

Outcome measures
Measure
Dose Level 1
n=35 Participants
Patients receive clofarabine 10 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 2
Patients receive clofarabine 20 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 3
Patients receive clofarabine 25 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 4
Patients receive clofarabine 30 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Disease Free Survival
7.4 median months
Interval 0.0 to 11.0

SECONDARY outcome

Timeframe: Up to 5 years

Median overall survival

Outcome measures

Outcome measures
Measure
Dose Level 1
n=35 Participants
Patients receive clofarabine 10 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 2
Patients receive clofarabine 20 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 3
Patients receive clofarabine 25 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Dose Level 4
Patients receive clofarabine 30 mg PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Overall Survival
6.8 median months
Interval 1.0 to 47.0

Adverse Events

Treatment (Chemotherapy)

Serious events: 24 serious events
Other events: 0 other events
Deaths: 5 deaths

Serious adverse events

Serious adverse events
Measure
Treatment (Chemotherapy)
n=35 participants at risk
Patients receive clofarabine PO QD on days 1-5 and low-dose cytarabine SC BID on days 1-10 or SC QD on days 1-14. Treatment repeats every 21-28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. clofarabine: Given PO cytarabine: Given SC
Infections and infestations
Infections
68.6%
24/35 • Number of events 24 • 30 days
Adverse events were not reported by dose level.
General disorders
Febrile neutropenia
22.9%
8/35 • Number of events 8 • 30 days
Adverse events were not reported by dose level.
General disorders
Septic Shock
14.3%
5/35 • Number of events 5 • 30 days
Adverse events were not reported by dose level.
Infections and infestations
Bacteraemia
28.6%
10/35 • Number of events 10 • 30 days
Adverse events were not reported by dose level.
Infections and infestations
Bacterial infection other than blood
20.0%
7/35 • Number of events 7 • 30 days
Adverse events were not reported by dose level.
Infections and infestations
Fungal infection
5.7%
2/35 • Number of events 2 • 30 days
Adverse events were not reported by dose level.
Cardiac disorders
Arrhythmia
8.6%
3/35 • Number of events 3 • 30 days
Adverse events were not reported by dose level.
Nervous system disorders
Altered Mental Status
2.9%
1/35 • Number of events 1 • 30 days
Adverse events were not reported by dose level.
Cardiac disorders
Heart Failure
2.9%
1/35 • Number of events 1 • 30 days
Adverse events were not reported by dose level.
Respiratory, thoracic and mediastinal disorders
Dyspnea
2.9%
1/35 • Number of events 1 • 30 days
Adverse events were not reported by dose level.
Gastrointestinal disorders
Gastrointestinal Bleed
2.9%
1/35 • Number of events 1 • 30 days
Adverse events were not reported by dose level.
General disorders
Syncope
2.9%
1/35 • Number of events 1 • 30 days
Adverse events were not reported by dose level.
Vascular disorders
Stroke
2.9%
1/35 • Number of events 1 • 30 days
Adverse events were not reported by dose level.

Other adverse events

Adverse event data not reported

Additional Information

Elihu Estey, MD, Director of AML Program

FCHRC

Phone: 206-288-7176

Results disclosure agreements

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