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PR104 in Treating Patients With Previously Untreated or Relapsed Small Cell Lung Cancer

A Phase II, Multi-Center, Open-Label, Trial of PR104 in Treatment Naive and Sensitive-relapse Small Cell Lung Cancer

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00544674
Enrollment
5
Registered
2007-10-16
Start date
2007-08-31
Completion date
2009-01-31
Last updated
2012-12-10

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

Conditions

Lung Cancer

Keywords

extensive stage small cell lung cancer, limited stage small cell lung cancer, recurrent small cell lung cancer

Brief summary

RATIONALE: Drugs used in chemotherapy, such as PR-104, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. PURPOSE: This phase II trial is studying how well PR-104 works in treating patients with previously untreated or relapsed small cell lung cancer (SCLC).

Detailed description

OBJECTIVES: Primary * Estimate the response rate of PR-104 in patients with treatment-naive or sensitive-relapse small cell lung cancer. * Evaluate safety of this drug in these patients. Secondary * Evaluate survival of these patients. * Evaluate progression-free survival of these patients. * Evaluate time to progression in these patients. * Assess the pharmacokinetics (PK) of PR-104 and its alcohol metabolite. * Estimate the rate of hypoxia using 18F-fluoromisonidazole (FMISO) positron emission topography (PET) imaging. * Collect plasma samples for assessment of potential biomarkers of tumor hypoxia. OUTLINE: This is a multicenter study. Patients are stratified according to disease type (treatment-naive vs sensitive-relapse). Patients receive PR-104 intravenously (IV) over 1 hour on day 1. Treatment repeats every 21 days for up to 4 courses (for treatment-naive patients) or in the absence of disease progression or unacceptable toxicity (for sensitive-relapse patients). PK studies are performed during course 1 and after course 3. Blood is collected at baseline, during course 1, and at study completion for biomarker studies of tumor hypoxia (plasma proteins). Patients also undergo FMISO PET and fludeoxyglucose F18 (FDG) PET scans at baseline and after the second course of study therapy.

Interventions

DRUGPR104

administered at a dose of 1100 mg/m\^2 by intravenous infusion over 1 hour and repeated every three weeks

administered intravenously prior to PET scan

Sponsors

Proacta, Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

DISEASE CHARACTERISTICS: Inclusion criteria: * Histologically or cytologically confirmed small cell lung cancer (SCLC) * If patient is treatment-naive, then they must have extensive disease * If patients are not treatment-naive, then they must be classified as sensitive-relapse with either extensive disease or limited disease * Sensitive-relapse defined as disease that responded to first-line chemotherapy and relapsed more than 90 days following the last dose of first-line chemotherapy * Limited disease SCLC defined as disease confined to the hemithorax of origin, mediastinum, and/or ipsilateral supraclavicular lymph nodes, which could be encompassed within a tolerable radiotherapy port * Extensive disease defined as disease that does not fit the definition of limited disease as defined above * Measurable or evaluable disease

Exclusion criteria

* Active central nervous system (CNS) metastases, defined as metastases to the CNS (symptomatic or non-symptomatic) that requires immediate treatment or that are likely to require treatment in the following 6 weeks * Medical conditions requiring urgent intervention, including any of the following: * Superior vena cava syndrome * Lobar obstruction * Spinal cord compression * Liver metastases involving greater than one-third of the liver PATIENT CHARACTERISTICS: Inclusion criteria: * Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 * Absolute neutrophil count ≥ 1,500/mm\^3 * Platelet count ≥ 100,000/mm\^3 * Hemoglobin ≥ 9 g/dL (no red blood cell transfusions allowed) * Serum bilirubin ≤ 1.5 x upper limit of normal (ULN) * Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 5 x ULN (if liver metastases are present) or ≤ 2 x ULN (if liver metastases are absent) * Serum creatinine ≤ 1.5 x ULN * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use effective contraception during and for at least 30 days after completion of study treatment

Design outcomes

Primary

MeasureTime frameDescription
Response Rate (Complete or Partial)From registration until disease progression/recurrence
Safety and Tolerability: the Number of Subjects Experiencing a Serious Adverse Events30 days following the last administration of study treatmentThe number of participants with at least one Serious Adverse Event was measured.

Secondary

MeasureTime frameDescription
SurvivalEvery 3 months for 2 years after discontinuation
Progression-free SurvivalTumor measurements and assessments based on Response Evaluation Criteria In Solid Tumors (RECIST) criteria were performed 6 weeks after first dose and as dictated by subject's malignancyProgression free survival (PFS) is the time (days) from date of registration to date of first observed disease progression (radiological or clinical, whichever was earlier) or death due to any cause, if death occurred before progression was documented.
Time to ProgressionFrom registration of the first subject until radiological progression or recurrence whichever came firstTime to progression (TTP) was defined as the time from date of registration to radiological progression / recurrence. Subjects without progression at the time of analysis were censored at their last date of tumor evaluation.
PharmacokineticsDays 1 and 2 of Cycles 1 and 4

Countries

United States

Participant flow

Participants by arm

ArmCount
PR104
1100 mg/m\^2 PR104 by IV over one hour every three weeks
5
Total5

Baseline characteristics

CharacteristicPR104
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
3 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
Age Continuous63 years
STANDARD_DEVIATION 9.19
Region of Enrollment
United States
5 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
4 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
4 / 4
serious
Total, serious adverse events
2 / 4

Outcome results

Primary

Response Rate (Complete or Partial)

Time frame: From registration until disease progression/recurrence

Primary

Safety and Tolerability: the Number of Subjects Experiencing a Serious Adverse Events

The number of participants with at least one Serious Adverse Event was measured.

Time frame: 30 days following the last administration of study treatment

ArmMeasureValue (NUMBER)
PR104Safety and Tolerability: the Number of Subjects Experiencing a Serious Adverse Events2 participants
Secondary

Pharmacokinetics

Time frame: Days 1 and 2 of Cycles 1 and 4

Secondary

Progression-free Survival

Progression free survival (PFS) is the time (days) from date of registration to date of first observed disease progression (radiological or clinical, whichever was earlier) or death due to any cause, if death occurred before progression was documented.

Time frame: Tumor measurements and assessments based on Response Evaluation Criteria In Solid Tumors (RECIST) criteria were performed 6 weeks after first dose and as dictated by subject's malignancy

Secondary

Survival

Time frame: Every 3 months for 2 years after discontinuation

Secondary

Time to Progression

Time to progression (TTP) was defined as the time from date of registration to radiological progression / recurrence. Subjects without progression at the time of analysis were censored at their last date of tumor evaluation.

Time frame: From registration of the first subject until radiological progression or recurrence whichever came first

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026