Skip to content

PANGEA-IMBBP: Personalized Antibodies for Gastro-Esophageal Adenocarcinoma - A 1st Pilot Metastatic Trial of Biologics Beyond Progression

PANGEA: Personalized Antibodies for Gastro-Esophageal Adenocarcinoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02213289
Enrollment
80
Registered
2014-08-11
Start date
2015-01-20
Completion date
2020-08-20
Last updated
2021-04-08

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

Conditions

Adenocarcinoma

Keywords

Gastric, Esophagogastric

Brief summary

The purpose of this study is to determine if doctors can use the results of special tests of subjects tumor tissue, that will look for specific abnormalities in the tumor, to choose a specific drug that is targeted to work against that abnormality (called molecular profiling) and to see what effects (good and/or bad) that targeted drug has on subjects cancer when it is given with standard chemotherapy.

Interventions

DRUGTrastuzumab

Trastuzumab

ABT-806

Bemarituzumab

DRUGRamucirumab

Ramucirumab

DRUGNivolumab

Nivolumab

DRUGStandard cytotherapy

FOLFOX (First Line) +FOLFIRI (Second Line) +FOLTAX (Third Line)

Sponsors

AbbVie
CollaboratorINDUSTRY
University of Chicago
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Histologically confirmed metastatic gastric or esophagogastric junction (type I,II,III Siewert) adenocarcinoma 2. Newly-diagnosed chemo-naïve or recurrent after curative-intent surgery * \>6 months after completion of adjuvant therapy (including chemotherapy and/or radiotherapy) * No prior treatment with any targeted agent * Patients who have started first line mFOLFOX6 therapy (+/-trastuzumab for HER2 amplified tumors) may be considered for trial participation if they have received no more than 4 doses of therapy at the time of consent and screening. 3. Measurable metastatic disease by RECIST criteria, * Must be amenable to ultrasound or CT-guided biopsy of one metastatic lesion * Peritoneal disease as the sole site of occult metastasis or presenting as malignant ascites is acceptable if a cell block of tumor cells can be obtained showing \>20% viable tumor cells. 4. ECOG PS 0,1 5. Age \> 18 years 6. Patients must have normal organ and marrow function as defined below: * granulocytes \>1,2500/mcL * platelets \>100,000/mcL * total bilirubin \< 1.5 x ULN, \<1.8 x ULN with liver metastases * AST(SGOT)/ALT(SGPT) \<2.5 X ULN without liver metastases; \<5 X ULN with liver metastases * creatinine within normal institutional limits (\<1.5) OR * creatinine clearance \>50 mL/min/1.73m2, (for creatinine level above normal) * INR: \< 1.5 (patients on warfarin need to be converted to LMWH during study participation to be eligible) 7. Consent to baseline metastatic and progressive disease biopsy (of metastatic/progressing lesion) for enabling biomarker assessment and treatment assignment (at each time point - baseline, PD1, PD2, PD3) as well as for correlative studies. • Consent to baseline and serial blood draws for plasma/serum/whole blood banking for correlative studies 8. Ability to understand and the willingness to sign a written informed consent document and consent to the serial nature of the proposed PANGEA treatment with first, second and third line therapy as tolerated. 9. Ability to comply with requirements of the protocol, as assessed by the investigator by the patient signing the consent form. 10. If history of exposure to anthracyclines during perioperative treatment, the following cumulative doses of anthracyclines must be less than: Epirubicin \< 720 mg/m2 Doxorubicin or liposomal doxorubicin \< 360 mg/m2 Mitoxantrone \> 120 mg/m2 and idarubicin \> 90 mg/m2 If more than one anthracycline has been used, then the cumulative dose must not exceed the equivalent of 360 mg/m2 of doxorubicin. 11. Cardiac Ejection Fraction \>50% (for HER2+ patients) as assessed by echocardiogram, MUGA scan, or cardiac MRI 12. Willingness to use effective and reliable methods of contraception (For appropriate methods of contraception considered acceptable see Appendix B). Both men and women and members of all races and ethnic groups are eligible for this trial.

Exclusion criteria

1. No CVA within 6 months, no recent MI within 6 months 2. No currently active second malignancy 3. No uncontrolled intercurrent illness or infection 4. No peripheral edema \> grade 2 at baseline. 5. No peripheral neuropathy \> grade 2 at baseline. 6. No diarrhea \> grade 2 at baseline.

Design outcomes

Primary

MeasureTime frameDescription
Overall SurvivalUp to 60 monthsTime from enrollment to death from any cause.

Secondary

MeasureTime frameDescription
Number of Biopsies Leading to an Adverse Event1 MonthNumber of biopsies leading to an adverse event of the total undergoing baseline biopsies of a primary and metastatic disease site (liver, lung, lymph node, peritoneum/carcinomatosis).
Completion of Biopsy and Successful, Molecularly-based Treatment AssignmentUp to 1 monthCompletion of biopsies with successful assignment per the treatment algorithm. Biomarker profile assays included next generation sequencing (NGS). EGFR expression was performed by selected-reaction-monitoring mass spectrometry (SRM-MS).
Adverse Event From Serial Biopsy for Second-line TreatmentUp to 60 MonthsNumber of participants with adverse events from serial biopsies of progressing metastatic disease sites (liver, lung, lymph node, peritoneum/carcinomatosis)
Adverse Event From Serial Biopsy for Third-line TreatmentUp to 60 monthsNumber of participants with adverse events from serial biopsies of progressing metastatic disease sites (liver, lung, lymph node, peritoneum/carcinomatosis)
Completion of Serial Biopsy for Third Line Therapy and Successful, Molecularly-based Treatment AssignmentUp to 60 monthsCompletion of biopsy with successful treatment assignment per the treatment algorithm. Biomarker profile assays included next generation sequencing (NGS). EGFR expression was performed by selected-reaction-monitoring mass spectrometry (SRM-MS).
Completion of Serial Biopsy for Second Line Therapy and Successful, Molecularly-based Treatment AssignmentUp to 60 monthsCompletion of biopsy with successful treatment assignment per the treatment algorithm. Biomarker profile assays included next generation sequencing (NGS). EGFR expression was performed by selected-reaction-monitoring mass spectrometry (SRM-MS).

Other

MeasureTime frameDescription
First-line Progression-free SurvivalUp to 60 MonthsTime from enrollment to progression or death during first-line treatment. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.
Objective Response to First Line TherapyUp to 6 monthsPer Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by CT or MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Countries

United States

Participant flow

Participants by arm

ArmCount
ITT-PTS: Personalized Treatment Strategy
For patients with monclonal antibiodies available, initial therapy was tailored based on biomarker profile as follows: Immuno-oncology patients including PD-L1 IHC combined positivity score \>10, high microsatellite instability, tumor mutation burden \>15 mutations/megabase, and/or Epstein-Barr virus positive patients received standard cytoptherapy plus Nivolumab HER2 amplified patients received standard cytotherapy plus Trastuzumab EGFR amplified patients received standard cytotherapy plus ABT-806 FGFR2 amplified patients received standard cytotherapy plus Bemarituzumab MAPK/PIK3CA aberrant patients received standard cytotherapy plus Ramucirumab. EGFR expressing patients received standard cytotherapy plus ABT 806. All negative patients received standard cytotherapy plus Ramucirumab.
68
Non-ITT: Standard Therapy
For patients without monoclonal antibodies available, therapy was standard cytotherapy consisting of FOLFOX (First Line) +FOLFIRI (Second Line) +FOLTAX (Third Line)
12
Total80

Baseline characteristics

CharacteristicNon-ITT: Standard TherapyTotalITT-PTS: Personalized Treatment Strategy
Age, Continuous61 years61 years61 years
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants2 Participants2 Participants
Race (NIH/OMB)
Black or African American
0 Participants7 Participants7 Participants
Race (NIH/OMB)
More than one race
1 Participants3 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
11 Participants68 Participants57 Participants
Region of Enrollment
United States
12 participants80 participants68 participants
Sex: Female, Male
Female
1 Participants16 Participants15 Participants
Sex: Female, Male
Male
11 Participants64 Participants53 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
56 / 6811 / 12
other
Total, other adverse events
68 / 6812 / 12
serious
Total, serious adverse events
29 / 688 / 12

Outcome results

Primary

Overall Survival

Time from enrollment to death from any cause.

Time frame: Up to 60 months

ArmMeasureValue (MEDIAN)
ITT-PTS: Personalized Treatment StrategyOverall Survival15.7 months
Non-ITT: Standard TherapyOverall Survival9.0 months
p-value: 0.0024One-sided Z-test
Secondary

Adverse Event From Serial Biopsy for Second-line Treatment

Number of participants with adverse events from serial biopsies of progressing metastatic disease sites (liver, lung, lymph node, peritoneum/carcinomatosis)

Time frame: Up to 60 Months

Population: This includes subset of patients administered second-line treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ITT-PTS: Personalized Treatment StrategyAdverse Event From Serial Biopsy for Second-line Treatment0 Participants
Non-ITT: Standard TherapyAdverse Event From Serial Biopsy for Second-line Treatment0 Participants
Secondary

Adverse Event From Serial Biopsy for Third-line Treatment

Number of participants with adverse events from serial biopsies of progressing metastatic disease sites (liver, lung, lymph node, peritoneum/carcinomatosis)

Time frame: Up to 60 months

Population: This includes subset of patients administered third-line treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ITT-PTS: Personalized Treatment StrategyAdverse Event From Serial Biopsy for Third-line Treatment0 Participants
Non-ITT: Standard TherapyAdverse Event From Serial Biopsy for Third-line Treatment0 Participants
Secondary

Completion of Biopsy and Successful, Molecularly-based Treatment Assignment

Completion of biopsies with successful assignment per the treatment algorithm. Biomarker profile assays included next generation sequencing (NGS). EGFR expression was performed by selected-reaction-monitoring mass spectrometry (SRM-MS).

Time frame: Up to 1 month

Population: Unit of analysis is the biopsy. Two biopsies were performed per patient, one of the primary tumor and one from a metastatic site.

ArmMeasureValue (NUMBER)
ITT-PTS: Personalized Treatment StrategyCompletion of Biopsy and Successful, Molecularly-based Treatment Assignment134 biopsies
Non-ITT: Standard TherapyCompletion of Biopsy and Successful, Molecularly-based Treatment Assignment23 biopsies
Secondary

Completion of Serial Biopsy for Second Line Therapy and Successful, Molecularly-based Treatment Assignment

Completion of biopsy with successful treatment assignment per the treatment algorithm. Biomarker profile assays included next generation sequencing (NGS). EGFR expression was performed by selected-reaction-monitoring mass spectrometry (SRM-MS).

Time frame: Up to 60 months

Population: This includes subset of patients administered second-line treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ITT-PTS: Personalized Treatment StrategyCompletion of Serial Biopsy for Second Line Therapy and Successful, Molecularly-based Treatment Assignment51 Participants
Non-ITT: Standard TherapyCompletion of Serial Biopsy for Second Line Therapy and Successful, Molecularly-based Treatment Assignment9 Participants
Secondary

Completion of Serial Biopsy for Third Line Therapy and Successful, Molecularly-based Treatment Assignment

Completion of biopsy with successful treatment assignment per the treatment algorithm. Biomarker profile assays included next generation sequencing (NGS). EGFR expression was performed by selected-reaction-monitoring mass spectrometry (SRM-MS).

Time frame: Up to 60 months

Population: This includes subset of patients administered third-line treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ITT-PTS: Personalized Treatment StrategyCompletion of Serial Biopsy for Third Line Therapy and Successful, Molecularly-based Treatment Assignment21 Participants
Non-ITT: Standard TherapyCompletion of Serial Biopsy for Third Line Therapy and Successful, Molecularly-based Treatment Assignment3 Participants
Secondary

Number of Biopsies Leading to an Adverse Event

Number of biopsies leading to an adverse event of the total undergoing baseline biopsies of a primary and metastatic disease site (liver, lung, lymph node, peritoneum/carcinomatosis).

Time frame: 1 Month

Population: Unit of analysis is the biopsy. Each patient had two biopsies, one of the primary tumor and one of a metastatic site.

ArmMeasureValue (NUMBER)
ITT-PTS: Personalized Treatment StrategyNumber of Biopsies Leading to an Adverse Event1 biopsies
Non-ITT: Standard TherapyNumber of Biopsies Leading to an Adverse Event0 biopsies
Other Pre-specified

First-line Progression-free Survival

Time from enrollment to progression or death during first-line treatment. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Time frame: Up to 60 Months

ArmMeasureValue (MEDIAN)
ITT-PTS: Personalized Treatment StrategyFirst-line Progression-free Survival8.2 months
Non-ITT: Standard TherapyFirst-line Progression-free Survival6.7 months
Other Pre-specified

Objective Response to First Line Therapy

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by CT or MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Time frame: Up to 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ITT-PTS: Personalized Treatment StrategyObjective Response to First Line Therapy40 Participants
Non-ITT: Standard TherapyObjective Response to First Line Therapy4 Participants

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026