Trial Outcomes & Findings for Irinotecan and Temozolomide in Treating Patients With Breast Cancer Who Have Received Previous Treatment for Brain Metastases (NCT NCT00617539)

NCT ID: NCT00617539

Last Updated: 2018-04-20

Results Overview

Imaging was performed at 8-week intervals to assess response to treatment. Patients with known or suspected leptomeningeal disease were deemed to have a complete response if CSF cytology converted to negative (if positive at baseline) and all meningeal enhancement or nodularity of brain and/or spine MRI resolved. A modified RECIST 1.0 criteria was used to assess CNS response for patients with new or progressing brain metastases. In this modified RECIST criteria, CNS lesions \<1cm were not considered measurable, but were considered evaluable for response and progression. Progressive disease for patients with lesions \<1 cm was defined as follows: growth of a lesion from less than or equal to 5 mm to greater than or equal to 10mm; or, growth of a 6-9 mm lesion by at least 5 mm in the case of non-target parenchymal brain metastases.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

30 participants

Primary outcome timeframe

Baseline scan prior to study entry was performed within 14 days of cycle 1 day 1, then every 8 weeks from then until disease progression or up to 2 years

Results posted on

2018-04-20

Participant Flow

Participant milestones

Participant milestones
Measure
Irinotecan and Temozolomide
125 mg/m\^2 irinotecan hydrochloride administered intravenously on days 1 and 15 of a 28 day cycle 100 mg/m\^2 temozolomide orally for seven days on days 1-7 and days 15-21 of a 28 day cycle
Overall Study
STARTED
30
Overall Study
COMPLETED
30
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Irinotecan and Temozolomide in Treating Patients With Breast Cancer Who Have Received Previous Treatment for Brain Metastases

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Irinotecan and Temozolomide
n=30 Participants
125 mg/m\^2 irinotecan hydrochloride administered intravenously on days 1 and 15 of a 28 day cycle 100 mg/m\^2 temozolomide orally for seven days on days 1-7 and days 15-21 of a 28 day cycle
Age, Continuous
53.5 years
n=93 Participants
Sex: Female, Male
Female
30 Participants
n=93 Participants
Sex: Female, Male
Male
0 Participants
n=93 Participants
Region of Enrollment
United States
30 Participants
n=93 Participants

PRIMARY outcome

Timeframe: Baseline scan prior to study entry was performed within 14 days of cycle 1 day 1, then every 8 weeks from then until disease progression or up to 2 years

Imaging was performed at 8-week intervals to assess response to treatment. Patients with known or suspected leptomeningeal disease were deemed to have a complete response if CSF cytology converted to negative (if positive at baseline) and all meningeal enhancement or nodularity of brain and/or spine MRI resolved. A modified RECIST 1.0 criteria was used to assess CNS response for patients with new or progressing brain metastases. In this modified RECIST criteria, CNS lesions \<1cm were not considered measurable, but were considered evaluable for response and progression. Progressive disease for patients with lesions \<1 cm was defined as follows: growth of a lesion from less than or equal to 5 mm to greater than or equal to 10mm; or, growth of a 6-9 mm lesion by at least 5 mm in the case of non-target parenchymal brain metastases.

Outcome measures

Outcome measures
Measure
Irinotecan and Temozolomide
n=30 Participants
irinotecan hydrochloride administered intravenously (IV) at a starting dose of 125 mg/m2 on days 1 and 15 of a 28 day cycle temozolomide orally for seven days at a starting dose of 100 mg/m2 on days 1-7 and days 15-21 of a 28 day cycle
Number of Patients With Objective Treatment Response (Complete or Partial) in the CNS
2 Participants

PRIMARY outcome

Timeframe: From 1 day 1 (first day of treatment) every 8 weeks until scan shows disease progression or up to 2 years

The number of patients experiencing a clinical benefit is the sum of patients with an objective response plus patients with stable disease at ≥ 16 weeks from cycle 1 day 1 (first day of treatment). If a patient did not come back for a follow up scan after clinical deterioration, then they were only considered stable up to the time of the last scan they had per protocol.

Outcome measures

Outcome measures
Measure
Irinotecan and Temozolomide
n=30 Participants
irinotecan hydrochloride administered intravenously (IV) at a starting dose of 125 mg/m2 on days 1 and 15 of a 28 day cycle temozolomide orally for seven days at a starting dose of 100 mg/m2 on days 1-7 and days 15-21 of a 28 day cycle
Number of Patients Experiencing a Clinical Benefit
7 Participants

SECONDARY outcome

Timeframe: Baseline scan prior to study entry was performed within 14 days of cycle 1 day 1, then every 8 weeks from then until disease progression or up to 2 years

Imaging at 8-week intervals to assess response to treatment. A modified RECIST 1.0 criteria was used to assess response and time to progression in the CNS for patients with progressing brain metastases. In this modified RECIST criteria, CNS lesions \<1cm were not considered measurable, but were considered evaluable for response and progression. Progressive disease for patients with lesions \<1 cm was defined as follows: growth of a lesion from less than or equal to 5 mm to greater than or equal to 10mm; or, growth of a 6-9 mm lesion by at least 5 mm in the case of non-target parenchymal brain metastases. If patient did not come back for a follow up scan after clinical deterioration, patient was only considered stable up to the time of the last scan per protocol and time to progression would be from cycle 1 day 1 to the last scan they completed that was stable.

Outcome measures

Outcome measures
Measure
Irinotecan and Temozolomide
n=30 Participants
irinotecan hydrochloride administered intravenously (IV) at a starting dose of 125 mg/m2 on days 1 and 15 of a 28 day cycle temozolomide orally for seven days at a starting dose of 100 mg/m2 on days 1-7 and days 15-21 of a 28 day cycle
Time to First Progression in CNS
70 Days
Interval 13.0 to 444.0

SECONDARY outcome

Timeframe: Time from initiation of study participation until death or up to 3 years

Time from initiation of study participation until death

Outcome measures

Outcome measures
Measure
Irinotecan and Temozolomide
n=30 Participants
irinotecan hydrochloride administered intravenously (IV) at a starting dose of 125 mg/m2 on days 1 and 15 of a 28 day cycle temozolomide orally for seven days at a starting dose of 100 mg/m2 on days 1-7 and days 15-21 of a 28 day cycle
Overall Time of Survival
146 Days
Interval 20.0 to 1043.0

SECONDARY outcome

Timeframe: CTCs drawn on cycle 1 day 1, collection at 8 week intervals on patients who did not progress on their 8 week scans up to 2 years

Population: Of 20 patients with CTCs measured at baseline, 14 were also measured at 8 weeks

CTCs were measured in blood using the Cellsearch(R) assay in 14 of the 20 patients measured at baseline

Outcome measures

Outcome measures
Measure
Irinotecan and Temozolomide
n=14 Participants
irinotecan hydrochloride administered intravenously (IV) at a starting dose of 125 mg/m2 on days 1 and 15 of a 28 day cycle temozolomide orally for seven days at a starting dose of 100 mg/m2 on days 1-7 and days 15-21 of a 28 day cycle
Number of Patients Whose Circulating Tumor Cells (CTCs) Decreased From >5 to <5 CTCs Per 7.5 mL
1 participants

Adverse Events

Irinotecan and Temozolomide

Serious events: 16 serious events
Other events: 30 other events
Deaths: 14 deaths

Serious adverse events

Serious adverse events
Measure
Irinotecan and Temozolomide
n=30 participants at risk
irinotecan hydrochloride administered intravenously at a starting dose of 125 mg/m2 on days 1 and 15 of a 28 day cycle, and temozolomide orally for seven days at a starting dose of 100 mg/m2 on days 1-7 and days 15-21 every 28 days.
Infections and infestations
Infection
13.3%
4/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Renal and urinary disorders
Hyponatremia
13.3%
4/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Fatigue
10.0%
3/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Vomiting
6.7%
2/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Nausea
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Diarrhea
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Hepatobiliary disorders
Transaminitis
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Nervous system disorders
Neuropathy
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Lymphopenia
53.3%
16/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Leukopenia
16.7%
5/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Neutropenia
16.7%
5/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Anemia
10.0%
3/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Thrombocytopenia
10.0%
3/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Dehydration
6.7%
2/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Alkaline phosphatase increased
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Nervous system disorders
Mental status change
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Dysphagia
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Weakness
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.

Other adverse events

Other adverse events
Measure
Irinotecan and Temozolomide
n=30 participants at risk
irinotecan hydrochloride administered intravenously at a starting dose of 125 mg/m2 on days 1 and 15 of a 28 day cycle, and temozolomide orally for seven days at a starting dose of 100 mg/m2 on days 1-7 and days 15-21 every 28 days.
Infections and infestations
Infection
16.7%
5/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Renal and urinary disorders
Hyponatremia
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Fatigue
50.0%
15/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Vomiting
50.0%
15/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Nausea
73.3%
22/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Diarrhea
50.0%
15/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Hepatobiliary disorders
Transaminitis
16.7%
5/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Nervous system disorders
Neuropathy
23.3%
7/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Endocrine disorders
Hypocalcemia
26.7%
8/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Mucositis
26.7%
8/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Constipation
26.7%
8/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Renal and urinary disorders
Hypokalemia
20.0%
6/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Anorexia
20.0%
6/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Nervous system disorders
Dizziness
16.7%
5/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Skin and subcutaneous tissue disorders
Rash
30.0%
9/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Dyspepsia
20.0%
6/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Lymphopenia
16.7%
5/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Leukopenia
23.3%
7/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Neutropenia
26.7%
8/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Anemia
46.7%
14/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Thrombocytopenia
23.3%
7/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Dehydration
10.0%
3/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Metabolism and nutrition disorders
Hypoalbuminemia
13.3%
4/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Fever
10.0%
3/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Skin and subcutaneous tissue disorders
Alopecia
10.0%
3/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Hepatobiliary disorders
Hyperbilirubinemia
10.0%
3/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Metabolism and nutrition disorders
Alkaline phosphatase increased
6.7%
2/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Weakness
6.7%
2/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Xerostomia
6.7%
2/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Abdominal pain
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Blood and lymphatic system disorders
Bruising
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Skin and subcutaneous tissue disorders
Dry skin
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Gastrointestinal disorders
Flatulence
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
General disorders
Hypomagnesemia
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.
Renal and urinary disorders
Creatinine increased
3.3%
1/30 • During study treatment (up to 3 years)
Only one mortality during study treatment window. All other mortalities occured during the long term follow up and are not reported in the All-Cause Mortality module.

Additional Information

Michelle Melisko, MD

University of California San Francisco

Phone: 415-353-7070

Results disclosure agreements

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