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Phase II Trial Of Gemcitabine Plus Nab-Paclitaxel +/- OGX-427 In Patients With Metastatic Pancreatic Cancer

A Randomized, Double-Blinded, Placebo-Controlled Phase II Trial Of Gemcitabine Plus Nab-Paclitaxel Combined With OGX-427 Or Placebo In Patients With Metastatic Pancreatic Cancer (The Rainier Trial)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01844817
Acronym
Rainier
Enrollment
132
Registered
2013-05-01
Start date
2013-09-30
Completion date
2016-03-31
Last updated
2017-05-16

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

Conditions

Pancreatic Cancer

Keywords

untreated, metastatic, OGX-427

Brief summary

The purpose of this study is to compare the overall survival in patients with previously untreated metastatic pancreatic cancer receiving gemcitabine/nab-paclitaxel plus OGX-427 or gemcitabine/nab-paclitaxel plus placebo.

Detailed description

Patients with pancreatic cancer usually present with inoperable disease and systemic therapy becomes the primary form of treatment. The combination of gemcitabine plus nab-paclitaxel represents an appropriate front-line standard of care for patients with metastatic pancreatic cancer. However, poor outcomes with this disease warrant exploration of novel drugs with unique mechanisms of action. Preclinical evidence suggests that OGX-427 has shown promising activity in pancreatic cancer. In this trial, we will compare the overall survival of patients with previously untreated metastatic pancreatic cancer using OGX-427 with either gemcitabine/nab-paclitaxel or a placebo with gemcitabine/nab-paclitaxel.

Interventions

Three separate administrations of OGX-427 will be given during the 9-day Loading Dose Period. Following the Loading Dose Period, patients will receive 600mg OGX-427 prior to the administration of nab-paclitaxel (125mg/m2 IV)and gemcitabine (1000mg/m2 IV)administration on Day 1, 8, and 15 of each cycle. OGX-427 will also be administered on Day 22 during each cycle (i.e., weekly). Patients will continue 28 day treatment cycles until disease progression or until other reasons for discontinuation from treatment.

DRUGPlacebo

Three separate administrations of Placebo will be given during the 9-day Loading Dose Period. Following the Loading Dose Period, patients will receive placebo prior to the administration of nab-paclitaxel (125mg/m2 IV)and gemcitabine (1000mg/m2 IV)administration on Day 1, 8, and 15 of each cycle. Placebo will also be administered on Day 22 during each cycle (i.e., weekly). Patients will continue 28 day treatment cycles until disease progression or until other reasons for discontinuation from treatment.

Sponsors

Achieve Life Sciences
CollaboratorINDUSTRY
SCRI Development Innovations, LLC
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

1. Histologically- or cytologically confirmed pancreatic adenocarcinoma 2. Stage IV disease (measurable disease NOT required) 3. Eastern Cooperative Oncology Group (ECOG) performance score of 0-1 4. At least 18 years of age 5. Female patients who are not of child-bearing potential, and fertile female patients of child-bearing potential who agree to use adequate contraceptive measures, who are not breastfeeding, and who have a negative serum or urine pregnancy test within 72 hours prior to start of randomization. 6. Fertile male patients willing to use adequate contraceptive measures. 7. Adequate bone marrow, renal, and hepatic function. 8. Ability to understand the nature of this study protocol, comply with study and/or follow-up procedures, and give written informed consent 9. Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests, and other study procedures.

Exclusion criteria

1. Any prior systemic or investigational therapy for metastatic pancreatic cancer. Systemic therapy administered alone or in combination with radiation in the adjuvant or neoadjuvant setting is permissible as long as it was completed \> 6 months prior to the time of study randomization. 2. History of other diseases, metabolic dysfunction, physical examination findings, or clinical laboratory findings giving reasonable suspicion of a disease or condition that, in the opinion of the investigator, renders the subject at high risk from treatment complications or might affect the interpretation of the results of the study. 3. Presence of known central nervous system or brain metastases. 4. Known human immunodeficiency virus (HIV) infection. 5. Active second invasive malignancy (except non-melanomatous skin cancer), defined as any malignancy with current need for cancer therapy or high possibility (\>30%) of recurrence during the study. 6. Patients receiving warfarin. However, therapeutic anticoagulation with Low Molecular Weight Heparin (LMWH) is allowed. 7. Clinically significant cardiac disease (e.g. congestive heart failure, symptomatic coronary artery disease, and cardiac arrhythmias not well controlled with medication) or myocardial infarction within the last 6 months. 8. Current sensory neuropathy \> Grade 1. 9. Major surgery within 4 weeks of the start of study treatment (defined as those surgeries that require general anesthesia. Insertion of a vascular access device is NOT considered major surgery.). Patients must have recovered from the side effects of any major surgery prior to randomization.

Design outcomes

Primary

MeasureTime frameDescription
Overall SurvivalUp to 2 yearsOverall survival defined as the time, in months, from date of randomization until date of death or date last known alive whichever comes first, assessed up to 2 years.

Secondary

MeasureTime frameDescription
Progression-Free SurvivalEvery 8 weeks up to 2 yearsThe time (in months) that patients are progression-free, assessed from date of randomization to date of first documented disease progression or date of death from any cause, whichever comes first. Progression is defined according to Response Evaluation Criteria in Solid Tumors Criteria (RECIST v1.1), as at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest (nadir) sum while on study (this includes the baseline sum if that is the smallest on study), or the appearance of one or more new lesions.
Objective Response RateEvery 8 weeks for up to 2 yearsObjective response rate defined as the percent of patients having a complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. CR=complete disappearance of all target lesions. PR=decrease in baseline of 30% or more of the diameter(s) of all target lesions.

Countries

United States

Participant flow

Recruitment details

Between September 2013 and December 2014, 132 subjhects with untreated metastatic pancreatic cancer were enrolled in the trial from 11 U.S. investigational sites.

Pre-assignment details

Subjects were enrolled and randomized in a 1:1 ratio (66 per Arm) to receive a combination of gemcitabine and nab-paclitaxel plus either OGX-427 (apatorsen) or a placebo.

Participants by arm

ArmCount
OGX-427
OGX-427: Three separate loading doses at 600mg IV over 1 week prior to Cycle 1 of chemotherapy, followed by 600mg IV once weekly on Days 1, 8, 15, and 22 of each 28 day cycle concurrent with chemotherapy. Chemotherapy: nab-paclitaxel (125mg/m\^2 IV) and gemcitabine (1000mg/m\^2 IV) on Days 1, 8, and 15 of each cycle. Patients continued 28 day treatment cycles until disease progression or until other reasons for discontinuation from treatment.
66
Placebo
Placebo (Dextrose 5% in Water): Three separate loading doses administered over 1 week prior to Cycle 1 of chemotherapy, followed by weekly doses on Days 1, 8, 15, and 22 of each 28 day cycle concurrent with chemotherapy. Chemotherapy: nab-paclitaxel (125mg/m\^2 IV) and gemcitabine (1000mg/m\^2 IV) on Days 1, 8, and 15 of each cycle. Patients continued 28 day treatment cycles until disease progression or until other reasons for discontinuation from treatment.
66
Total132

Withdrawals & dropouts

PeriodReasonFG000FG001
Enrolled and RandomizedWithdrawal by Subject23
TreatmentAdverse Event179
TreatmentDeath108
TreatmentLost to Follow-up01
TreatmentOther03
TreatmentProgressive Disease2736
TreatmentWithdrawal by Subject106

Baseline characteristics

CharacteristicOGX-427PlaceboTotal
Age, Continuous66.5 years65.5 years66 years
Race/Ethnicity, Customized
Black/African American
10 Participants5 Participants15 Participants
Race/Ethnicity, Customized
White
56 Participants61 Participants117 Participants
Region of Enrollment
United States
66 participants66 participants132 participants
Sex: Female, Male
Female
29 Participants28 Participants57 Participants
Sex: Female, Male
Male
37 Participants38 Participants75 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
62 / 6462 / 63
serious
Total, serious adverse events
64 / 6463 / 63

Outcome results

Primary

Overall Survival

Overall survival defined as the time, in months, from date of randomization until date of death or date last known alive whichever comes first, assessed up to 2 years.

Time frame: Up to 2 years

Population: Includes Intent-to-Treat Population: all subjects enrolled and randomized

ArmMeasureValue (MEDIAN)
OGX-427Overall Survival5.3 months
PlaceboOverall Survival6.9 months
Secondary

Objective Response Rate

Objective response rate defined as the percent of patients having a complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. CR=complete disappearance of all target lesions. PR=decrease in baseline of 30% or more of the diameter(s) of all target lesions.

Time frame: Every 8 weeks for up to 2 years

Population: Includes Intent-to-Treat Population: all subjects enrolled and randomized

ArmMeasureGroupValue (NUMBER)
OGX-427Objective Response RatePR18 percentage of participants
OGX-427Objective Response RateCR0 percentage of participants
PlaceboObjective Response RatePR18 percentage of participants
PlaceboObjective Response RateCR0 percentage of participants
Secondary

Progression-Free Survival

The time (in months) that patients are progression-free, assessed from date of randomization to date of first documented disease progression or date of death from any cause, whichever comes first. Progression is defined according to Response Evaluation Criteria in Solid Tumors Criteria (RECIST v1.1), as at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest (nadir) sum while on study (this includes the baseline sum if that is the smallest on study), or the appearance of one or more new lesions.

Time frame: Every 8 weeks up to 2 years

Population: Intent-to-Treat Population: all subjects enrolled and randomized

ArmMeasureValue (MEDIAN)
OGX-427Progression-Free Survival2.7 months
PlaceboProgression-Free Survival3.8 months

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026