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Safety and Efficacy Clinical Study of SNS-595 in Patients With Advanced Small Cell Lung Cancer

Phase 2 Open-Label, Multicenter Clinical Study of the Safety and Efficacy of Intravenous Administration of SNS-595 in Patients With Advanced Small Cell Lung Cancer (SCLC)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00298896
Enrollment
55
Registered
2006-03-03
Start date
2006-02-28
Completion date
2008-06-30
Last updated
2018-07-26

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

Conditions

Carcinoma, Small Cell, Small Cell Lung Cancer

Keywords

Lung, Squamous Cell, Small Cell, Carcinoma, Cancer, Small Cell Lung Cancer

Brief summary

The purpose of this study is to evaluate the objective tumor response rate to SNS-595 in patients with small cell lung cancer (SCLC).

Detailed description

Other objectives of this study are to assess the safety, survival rate, best response, time to disease progression, duration of tumor response, and to explore several potential biomarkers to see how these levels change after administration of SNS-595.

Interventions

Sponsors

Sunesis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Able to understand and willing to sign a written informed consent document * Patients who have recurrent or refractory SCLC requiring second-line chemotherapy who previously received first-line chemotherapy * Measurable disease * Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1, or 2 * Brain metastasis may be included if the patient is neurologically stable and has been off steroids and anticonvulsants for at least 4 weeks prior to Cycle 1 Day 0 * Laboratory values within the normal or reasonable reference range as specified by the protocol

Exclusion criteria

* Prior exposure to SNS-595 * Pregnant or breastfeeding * Women of childbearing potential, or male partners of women of childbearing potential, unwilling to use an approved, effective means of contraception according to the institution's standards * Other active malignancies or other malignancies within the past 12 months, other than non-melanoma skin cancer, cervical intraepithelial neoplasia, or prostatic intraepithelial neoplasia * Q-wave myocardial infarction or cerebrovascular accident/transient ischemic attack (TIA) within 6 months before the first SNS-595 dose * Thromboembolic event (deep vein thrombosis or pulmonary embolus) within 28 days before the first SNS-595 dose * Requires kidney dialysis (hemodialysis or peritoneal) * Prior chemotherapy, investigational agents, or radiation therapy within 28 days before Cycle 1 Day 0; however, nitrosoureas, mitomycin C, and therapeutic monoclonal antibodies are not permitted for at least 42 days before Cycle 1 Day 0 * In patients with toxicities caused by prior cancer therapy, those toxicities must have returned to less than or equal to Grade 1, with the exception of alopecia. * Prior pelvic radiation therapy or radiation to greater than 25% of bone marrow reserve; radiation to the brain is permitted up to 28 days before the first SNS-595 dose, as long as the patient does not require treatment with corticosteroids for symptom control related to brain metastases. * Any other medical, psychological, or social condition that, in the opinion of the Principal Investigator, would contraindicate the patient's participation in the clinical trial due to safety or compliance with study procedures

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rateup to 6 monthsObjective tumor response rate based on the RECIST criteria for target lesions as assessed by CT or MRI: Complete Response (CR), disappearance of all target lesions; Partial Response (PR), at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD; Progressive Disease (PD), at least a 20% increase in the sum of the LD of target lesions; Stable Disease (SD), Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. Overall Response (OR) = CR + PR

Secondary

MeasureTime frameDescription
Best Overall Responseupto 6 monthsThe best overall response is the best response recorded from the start of the treatment until disease progression/recurrence (taking as reference for PD the smallest measurements recorded since the treatment started), classified as CR, PR, SD or PD per RECIST criteria.

Countries

Canada, United States

Participant flow

Participants by arm

ArmCount
SNS-595
SNS-595; 48 mg/m2 administered IV once every 21 days for up to 6 cycles.
55
Total55

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAssigned to treatment in error1
Overall StudyDeath3
Overall StudyDisease Progression41
Overall StudyIntercurrent Illness1
Overall StudyPhysician Decision2
Overall StudyWithdrawal by Subject2

Baseline characteristics

CharacteristicSNS-595
Age, Continuous61.2 years
STANDARD_DEVIATION 9.46
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
54 Participants
Region of Enrollment
Canada
14 participants
Region of Enrollment
United States
41 participants
Sex: Female, Male
Female
25 Participants
Sex: Female, Male
Male
30 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
15 / 54
other
Total, other adverse events
52 / 54
serious
Total, serious adverse events
9 / 54

Outcome results

Primary

Objective Response Rate

Objective tumor response rate based on the RECIST criteria for target lesions as assessed by CT or MRI: Complete Response (CR), disappearance of all target lesions; Partial Response (PR), at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD; Progressive Disease (PD), at least a 20% increase in the sum of the LD of target lesions; Stable Disease (SD), Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. Overall Response (OR) = CR + PR

Time frame: up to 6 months

Population: Efficacy Analysis Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SNS-595Objective Response Rate3 Participants
Secondary

Best Overall Response

The best overall response is the best response recorded from the start of the treatment until disease progression/recurrence (taking as reference for PD the smallest measurements recorded since the treatment started), classified as CR, PR, SD or PD per RECIST criteria.

Time frame: upto 6 months

Population: Efficacy Analysis Set

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
SNS-595Best Overall ResponseComplete Response1 Participants
SNS-595Best Overall ResponsePartial Response2 Participants
SNS-595Best Overall ResponseProgressive Disease31 Participants
SNS-595Best Overall ResponseStable Disease13 Participants

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