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Safety and Efficacy Clinical Study of SNS-595 in Patients With Platinum-Resistant Ovarian Cancer

A Phase 2 Open-Label, Multicenter Study of SNS-595 Injection in Patients With Platinum-Resistant Ovarian Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00408603
Enrollment
183
Registered
2006-12-07
Start date
2006-12-20
Completion date
2010-06-09
Last updated
2017-07-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Epithelial Ovarian Cancer

Keywords

second line treatment, platinum resistant, ovary, ovaries, cancer, epithelial, carcinomas, tumor

Brief summary

The purpose of this study is to evaluate the objective response rate, safety and identify potential biomarkers in platinum-resistant ovarian cancer patients treated with voreloxin injection given on a 28-day cycle.

Detailed description

Other objectives of this study are to evaluate Progression-free survival and measure CA-125 response rate.

Interventions

DRUGVoreloxin Injection

All patients in initial dose level receive voreloxin injection at 48 mg/m2 administered once every 21 days up to 6 cycles. Subsequent levels are of 60 mg/m2 or 75 mg/m2 every 28 days up to 6 cycles if safety acceptable.

Sponsors

Sunesis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically or cytologically documented epithelial ovarian cancer, primary peritoneal carcinoma, or fallopian tube cancer * Completed at least one Platinum Based Therapy (PBT) regimen (carboplatin, cisplatin, or another organoplatinum compound). * Evidence of platinum-resistant disease, relapse/progression within 6 months of the completion of PBT, or intolerant to PBT (inability to receive PBT due to hypersensitivity reactions to platinum) * Patients with primary platinum-resistant disease are allowed to receive no more than one nonplatinum cytotoxic regimen and no more than one noncytotoxic regimen for the management of recurrent or persistent disease after the development of primary platinum-resistance. * Measurable disease per GOG-RECIST criteria * GOG Performance Status of 0 or 1

Exclusion criteria

* Radiotherapy, chemotherapy, and hormonal, cytokine, or targeted therapy, within 3 weeks (nitrosurea or mitomycin C within 6 weeks) prior to the anticipated first day of treatment. * Monoclonal antibody therapy within 4 weeks prior to clinical study entry * Unresolved or impending bowel obstruction * Other active malignancies or other malignancies within the last 12 months except nonmelanoma skin cancer or cervical intraepithelial neoplasia * Prior radiotherapy to more than 25% of the marrow space * Requiring hemodialysis or peritoneal dialysis * Myocardial infarction or cerebrovascular accident/transient ischemic attack within the 6 months prior to the anticipated first day of treatment * Thromboembolic event (deep vein thrombosis \[DVT\] or pulmonary embolus \[PE\]) within 28 days prior to the anticipated first day of treatment * History of active CNS metastases * Any other medical, psychological, or social condition that would contraindicate the patient's participation in the clinical study due to safety or compliance with clinical study procedures. Please note: There are additional inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate (CR+PR) Per Investigator Assessment Based on GOG-RECIST CriteriaGOG-RECIST assessment obtained on cycle2, 4 and 6 Day 21for patients treated with 48 mg/m2 SNS-595 and Day 28 for patients treated with 60 mg/m2, through 28 (±14) days afte the last treatment at the end of safety follow up periodResponse rate was calculated per investigator's tumor assessment based on GOG-RECIST, which includes radiographic imaging, physical examination results, and CA-125 levels. No independent review of CT scans (lesion assessments) was performed. CR: disappearance of all target and nontarget lesions and no evidence of new lesions documented by two disease assessments at least 4 weeks apart. Normalization of CA125, if elevated at baseline, is required for ovarian carcinoma studies. PR is \>= 30% decrease in the sum of LD of all target measurable lesions taking as reference the baseline sum of LD. There can be no unequivocal progression of nontarget lesions and no new lesions. Documentation by two disease assessments at least 4 weeks apart is required. In the case where the ONLY target lesion is a solitary pelvic mass measured by physical exam, which is not radiographically measurable, a 50% decrease in the LD is required.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS) Using Kaplan-Meier MethodsFrom the first teratment of Vosaroxin to the end of Cycle 6 or 28 days after the last treatment at the end of safety follow up period if continued in the extended treatment periodPFS is the the time between the date the patient first received Vosaroxin and the earliest date of disease progression. For patients who experienced disease progression, the date of disease progression will be the earliest date on which disease progression is indicated based on the rules. For patients who died with no indication of disease progression, the date of death will be the earliest date on which death is documented based on the rules. For patients who have no indication of disease progression or death, the censoring date will be the Date of Confirmed Contact from the last Survival Follow-Up CRF, or if not in survival follow-up, then the Assessment Date from the last GOG-RECIST CRF, or if no response assessment available, Date of Last Visit / Contact from Extended Treatment Completion CRF if in extended treatment, or from Cycle 6 Completion / Early Termination CRF if not in extended treatment.

Countries

Canada, United States

Participant flow

Participants by arm

ArmCount
48 mg/m2
48 mg/m2 every 21 days
65
60 mg/m2
60 mg/m2 every 28 days
37
75 mg/m2
75 mg/m2 every 28 days
35
Total137

Baseline characteristics

Characteristic60 mg/m275 mg/m248 mg/m2Total
Age, Continuous62.7 years
STANDARD_DEVIATION 10.51
57.6 years
STANDARD_DEVIATION 12.13
60 years
STANDARD_DEVIATION 9.87
60.1 years
STANDARD_DEVIATION 10.74
BSA (m2)1.7 m2
STANDARD_DEVIATION 0.24
1.8 m2
STANDARD_DEVIATION 0.2
1.8 m2
STANDARD_DEVIATION 0.2
1.8 m2
STANDARD_DEVIATION 0.21
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
37 Participants35 Participants65 Participants137 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Height (cm)161.9 cm
STANDARD_DEVIATION 7.01
163.9 cm
STANDARD_DEVIATION 7.01
162.4 cm
STANDARD_DEVIATION 6.75
162.7 cm
STANDARD_DEVIATION 6.88
Race/Ethnicity, Customized
Asian
1 Participants2 Participants5 Participants8 Participants
Race/Ethnicity, Customized
Black or African
1 Participants1 Participants4 Participants6 Participants
Race/Ethnicity, Customized
Other, Philippines
0 Participants1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
White or Caucasian
35 Participants31 Participants56 Participants122 Participants
Sex: Female, Male
Female
37 Participants35 Participants65 Participants137 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants
Weight (kg)71.2 kg
STANDARD_DEVIATION 20.52
69.9 kg
STANDARD_DEVIATION 15.39
75.1 kg
STANDARD_DEVIATION 17.21
72.7 kg
STANDARD_DEVIATION 17.76

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
7 / 652 / 373 / 3511 / 137
other
Total, other adverse events
63 / 6537 / 3735 / 35135 / 137
serious
Total, serious adverse events
15 / 659 / 3714 / 3538 / 137

Outcome results

Primary

Overall Response Rate (CR+PR) Per Investigator Assessment Based on GOG-RECIST Criteria

Response rate was calculated per investigator's tumor assessment based on GOG-RECIST, which includes radiographic imaging, physical examination results, and CA-125 levels. No independent review of CT scans (lesion assessments) was performed. CR: disappearance of all target and nontarget lesions and no evidence of new lesions documented by two disease assessments at least 4 weeks apart. Normalization of CA125, if elevated at baseline, is required for ovarian carcinoma studies. PR is \>= 30% decrease in the sum of LD of all target measurable lesions taking as reference the baseline sum of LD. There can be no unequivocal progression of nontarget lesions and no new lesions. Documentation by two disease assessments at least 4 weeks apart is required. In the case where the ONLY target lesion is a solitary pelvic mass measured by physical exam, which is not radiographically measurable, a 50% decrease in the LD is required.

Time frame: GOG-RECIST assessment obtained on cycle2, 4 and 6 Day 21for patients treated with 48 mg/m2 SNS-595 and Day 28 for patients treated with 60 mg/m2, through 28 (±14) days afte the last treatment at the end of safety follow up period

Population: Safety Population which included all patients who received any amount of vosaroxin

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
48 mg/m2Overall Response Rate (CR+PR) Per Investigator Assessment Based on GOG-RECIST Criteria7 Participants
60 mg/m2Overall Response Rate (CR+PR) Per Investigator Assessment Based on GOG-RECIST Criteria4 Participants
75 mg/m2Overall Response Rate (CR+PR) Per Investigator Assessment Based on GOG-RECIST Criteria3 Participants
TotalOverall Response Rate (CR+PR) Per Investigator Assessment Based on GOG-RECIST Criteria14 Participants
Secondary

Progression-free Survival (PFS) Using Kaplan-Meier Methods

PFS is the the time between the date the patient first received Vosaroxin and the earliest date of disease progression. For patients who experienced disease progression, the date of disease progression will be the earliest date on which disease progression is indicated based on the rules. For patients who died with no indication of disease progression, the date of death will be the earliest date on which death is documented based on the rules. For patients who have no indication of disease progression or death, the censoring date will be the Date of Confirmed Contact from the last Survival Follow-Up CRF, or if not in survival follow-up, then the Assessment Date from the last GOG-RECIST CRF, or if no response assessment available, Date of Last Visit / Contact from Extended Treatment Completion CRF if in extended treatment, or from Cycle 6 Completion / Early Termination CRF if not in extended treatment.

Time frame: From the first teratment of Vosaroxin to the end of Cycle 6 or 28 days after the last treatment at the end of safety follow up period if continued in the extended treatment period

Population: Safety population which included all patients who received any amount of vosaroxin

ArmMeasureValue (MEDIAN)
48 mg/m2Progression-free Survival (PFS) Using Kaplan-Meier Methods83 Days
60 mg/m2Progression-free Survival (PFS) Using Kaplan-Meier Methods61 Days
75 mg/m2Progression-free Survival (PFS) Using Kaplan-Meier Methods103 Days
TotalProgression-free Survival (PFS) Using Kaplan-Meier Methods81 Days

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026