A Study of Gemcitabine and Demcizumab (OMP-21M18) With or Without Abraxane® as 1st-line Treatment in Subjects With Locally Advanced or Metastatic Pancreatic Cancer

Overview[ - collapse ][ - ]

Purpose The purpose of this study is to test the safety and determine the optimal dose of a new experimental drug, demcizumab (OMP-21M18), when given in combination with gemcitabine with or without (+/-) Abraxane®. Historically, single agent gemcitabine has been the standard treatment for pancreatic cancer. However, recent data suggests that gemcitabine plus Abraxane® may be superior to gemcitabine alone, thus this combination is emerging as the new standard therapy for pancreatic cancer. However, Abraxane® has not been approved for the treatment of pancreatic cancer at this time. Demcizumab is a humanized monoclonal antibody and was developed to target cancer stem cells. This study is sponsored by OncoMed Pharmaceuticals, which is referred to as OncoMed or the Sponsor in this consent form. The study is designed to test the safety of demcizumab at different dose levels when given with gemcitabine +/- Abraxane® and the effects, both good and bad, that it has on participants. Demcizumab may block the growth of cancer stem cells, the remaining tumor cells, and it may also prevent the growth of new blood vessels that tumors need to grow and spread. Although demcizumab has been administered with gemcitabine to cancer patients, it has not been given in combination with gemcitabine and Abraxane®; thus, it is not known if it will provide any benefit to participants and may cause harmful side effects.
ConditionPancreatic Cancer
InterventionDrug: Demcizumab
Drug: Abraxane®
Drug: Gemcitabine
PhasePhase 1
SponsorOncoMed Pharmaceuticals, Inc.
Responsible PartyOncoMed Pharmaceuticals, Inc.
ClinicalTrials.gov IdentifierNCT01189929
First ReceivedAugust 25, 2010
Last UpdatedSeptember 19, 2013
Last verifiedSeptember 2013

Tracking Information[ + expand ][ + ]

First Received DateAugust 25, 2010
Last Updated DateSeptember 19, 2013
Start DateAugust 2010
Estimated Primary Completion DateDecember 2014
Current Primary Outcome MeasuresTo determine the maximum tolerated dose of demcizumab (OMP-21M18) when combined with gemcitabine +/- Abraxane® [Time Frame: Until disease progression] [Designated as safety issue: Yes]
Current Secondary Outcome Measures
  • To determine the safety of gemcitabine +/- Abraxane® plus demcizumab (OMP-21M18) [Time Frame: Until disease progression] [Designated as safety issue: Yes]
  • To determine the rate of immunogenicity of gemcitabine +/- Abraxane® plus demcizumab (OMP-21M18) [Time Frame: Until disease progression] [Designated as safety issue: No]
  • To determine the preliminary efficacy of gemcitabine +/- Abraxane® plus demcizumab (OMP-21M18) [Time Frame: Until disease progression] [Designated as safety issue: No]
  • To determine population pharmacokinetics of demcizumab (OMP-21M18) [Time Frame: Until disease progression] [Designated as safety issue: No]
  • To determine the exploratory biomarker changes of gemcitabine plus demcizumab (OMP-21M18) [Time Frame: Until disease progression] [Designated as safety issue: No]

Descriptive Information[ + expand ][ + ]

Brief TitleA Study of Gemcitabine and Demcizumab (OMP-21M18) With or Without Abraxane® as 1st-line Treatment in Subjects With Locally Advanced or Metastatic Pancreatic Cancer
Official TitleA Phase 1b Study of Gemcitabine and Demcizumab (OMP-21M18) With or Without Abraxane® as 1st-line Treatment in Subjects With Locally Advanced or Metastatic Pancreatic Cancer
Brief Summary
The purpose of this study is to test the safety and determine the optimal dose of a new
experimental drug, demcizumab (OMP-21M18), when given in combination with gemcitabine with
or without (+/-) Abraxane®. Historically, single agent gemcitabine has been the standard
treatment for pancreatic cancer. However, recent data suggests that gemcitabine plus
Abraxane® may be superior to gemcitabine alone, thus this combination is emerging as the new
standard therapy for pancreatic cancer. However, Abraxane® has not been approved for the
treatment of pancreatic cancer at this time. Demcizumab is a humanized monoclonal antibody
and was developed to target cancer stem cells. This study is sponsored by OncoMed
Pharmaceuticals, which is referred to as OncoMed or the Sponsor in this consent form. The
study is designed to test the safety of demcizumab at different dose levels when given with
gemcitabine +/- Abraxane® and the effects, both good and bad, that it has on participants.
Demcizumab may block the growth of cancer stem cells, the remaining tumor cells, and it may
also prevent the growth of new blood vessels that tumors need to grow and spread. Although
demcizumab has been administered with gemcitabine to cancer patients, it has not been given
in combination with gemcitabine and Abraxane®; thus, it is not known if it will provide any
benefit to participants and may cause harmful side effects.
Detailed Description
Current cancer therapies often produce an initial reduction in tumour size but may not have
long term benefits. One possible explanation for this is the presence cancer cell known as a
cancer stem cells. Cancer stem cells represent a small part of the tumour but are believed
to be responsible for much of the growth and spread of the cancer. They may also be more
resistant to traditional therapy, such as chemotherapy and radiation therapy.

The purpose of this study is to test the safety and determine the optimal dose of a new
experimental drug, demcizumab, when given in combination with gemcitabine, a drug that is a
standard treatment for advanced pancreatic cancer that has not been treated previously with
chemotherapy. Demcizumab is a humanized monoclonal antibody (a protein made in the
laboratory) and was developed to target cancer stem cells. The way the body handles
demcizumab will also be investigated.

Up to 50 subjects will be enrolled at up to 8 centers in Australia, New Zealand, and Spain.
Up to 28 days (4 weeks) prior to treatment you will undergo testing to determine your
eligibility to take part in this study, and then if you are enrolled in the study you will
receive intravenous (in the vein) infusions of the demcizumab administered once every 2
weeks, and gemcitabine and Abraxane® administered weekly for 3 weeks, out of every 4 weeks.
After 9 weeks, you will undergo assessments to determine the status of your disease. If
there is no evidence of progression of your disease or if your tumor is smaller, you will
continue to receive one additional infusion of demcizumab, and you will continue to receive
infusions of gemcitabine and Abraxane® once weekly for 3 consecutive weeks out of every 4
weeks until it has been shown that your cancer has progressed. You will undergo assessments
every 8 weeks thereafter to determine the status of your disease. If there is no evidence of
progression of your disease or if your tumor is smaller, you will continue to receive one
additional infusion of demcizumab, and you will continue to receive infusions of gemcitabine
and Abraxane® once weekly for 3 consecutive weeks out of every 4 weeks until it has been
shown that your cancer has progressed. You will undergo assessments every 8 weeks thereafter
to determine the status of your disease.

In addition to routine testing of blood and urine (for complete blood counts with
differential and platelets, coagulation studies to determine how quickly your blood is
clotting , serum chemistries, B-type natriuretic peptide [BNP] and Troponin I which
indicates how well your heart if working, and urinalysis), special tests will be performed
during the study at specific time points.

In addition, you will have and ECG and Doppler echocardiogram performed during screening,
then every 28 days on study and at treatment termination. Your Doppler echocardiograms may
be sent to a Cardiologist at another hospital who may perform a central read on some of the
Doppler echocardiograms in this study. Finally, you will have a head CT or MRI at baseline
and CT scans and/or other radiographs performed every 56 days to assess the status of your
tumor.

The study includes an optional part which will investigate how variations in people's
genetic makeup affect their response to medications. This involves the collection of one
blood sample just before participants receive their first dose of study treatment. DNA will
be extracted from the blood sample for testing.
Study TypeInterventional
Study PhasePhase 1
Study DesignAllocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
ConditionPancreatic Cancer
InterventionDrug: Demcizumab
Up to 50 subjects will be enrolled at up to 8 centers in Australia, New Zealand, and Spain. Up to 28 days (4 weeks) prior to treatment you will undergo testing to determine your eligibility to take part in this study, and then if you are enrolled in the study you will receive intravenous (in the vein) infusions of the demcizumab administered once every 2 weeks, and gemcitabine and Abraxane® administered weekly for 3 weeks, out of every 4 weeks. After 9 weeks, you will undergo assessments to determine the status of your disease. If there is no evidence of progression of your disease or if your tumor is smaller, you will continue to receive one additional infusion of demcizumab, and you will continue to receive infusions of gemcitabine and Abraxane® once weekly for 3 consecutive weeks out of every 4 weeks until it has been shown that your cancer has progressed. You will undergo assessments every 8 weeks thereafter to determine the status of your disease.
Other Names:
OMP-21M18Drug: Abraxane®
Abraxane® which will be administered by IV infusion at a dose of 125 mg/m2 over 30 minutes once a week for 3 weeks in a row, followed by a week of rest.
Drug: Gemcitabine
Gemcitabine will be administered intravenously over 30 minutes initially at a dose of 1000 mg/m2 once a week for 3 weeks in a row, followed by a week of rest. If you develop side effects during this time period, your physician may decide to hold or reduce the dose of gemcitabine.
Study Arm (s)Experimental: Gemcitabine and demcizumab With or Without Abraxane®
Gemcitabine and demcizumab With or Without Abraxane®

Recruitment Information[ + expand ][ + ]

Recruitment StatusRecruiting
Estimated Enrollment50
Estimated Completion DateDecember 2014
Estimated Primary Completion DateMay 2014
Eligibility Criteria
Inclusion criteria

1. Subjects must have histologically or cytologically confirmed locally advanced or
metastatic pancreatic cancer. In addition, subjects must have a tumor that is at
least 1 cm in a single dimension and is radiographically apparent on Computed
Topography (CT) or Magnetic Resonance Imaging (MRI). Prior chemotherapy or
radiotherapy is not allowed.

2. Age >21 years

3. Eastern Cooperative Oncology Group (ECOG) performance status <2 (see Appendix B)

4. Life expectancy of more than 3 months

5. Subjects must have normal organ and marrow function as defined below:

- Leukocytes >3.5 x 109/L

- Absolute neutrophil count >1.25 x 109/L

- Hemoglobin >100 g/L

- Platelets >125 X 109/L

- Total bilirubin <2 X institutional upper limit of normal (ULN)

- Aspartate aminotransferase (AST/SGOT) and alanine aminotransferase (ALT/SGPT) <5
X institutional ULN

- Alkaline phosphatase <5 X institutional ULN

- International normalized ratio (INR) and activated partial thromboplastin time
(aPTT) within institutional ULN

- Creatinine <1.5 X institutional ULN OR

- Calculated creatinine clearance >60 mL/min using the Cockcroft and Gault formula
as follows:

Creatinine clearance (mL/min) = (140 - age) x ideal body weight [kg] 0.814 x serum
creatinine [µmol/L] For women, multiply the value from the equation above by 0.85.
Where age is in years, weight is in kg, and serum creatinine is in µmol/L

6. Women of childbearing potential must have had a prior hysterectomy or have a negative
serum pregnancy test and be using adequate contraception prior to study entry and
must agree to use adequate contraception from study entry through at least 6 months
after discontinuation of study drug. Men must also agree to use adequate
contraception (hormonal or barrier method of birth control; abstinence) prior to
study entry and from study entry through at least 6 months after discontinuation of
study drug. Should a woman enrolled in the study or a female partner of a man
enrolled in the study become pregnant or suspect she is pregnant while participating
in this study or within 6 months after discontinuation of study drug, the
Investigator should be informed immediately.

7. Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria

Subjects who meet any of the following criteria will not be eligible for participation in
the study:

1. Subjects receiving any other investigational agents or anti-cancer therapy.

2. Subjects with brain metastases (subjects must have a CT scan or MRI of the head
within 28 days prior to enrollment to rule out brain metastases), uncontrolled
seizure disorder, or active neurologic disease

3. History of a significant allergic reaction attributed to humanized or human
monoclonal antibody therapy

4. Significant intercurrent illness including, but not limited to, ongoing or active
infection, symptomatic congestive heart failure, angina pectoris, cardiac arrhythmia,
or psychiatric illness/social situations that would limit compliance with study
requirements

5. Pregnant women or nursing women

6. Subjects with known HIV infection

7. Known bleeding disorder or coagulopathy

8. Subjects receiving heparin, warfarin, or other similar anticoagulants. Note:
Subjects may be receiving low-dose aspirin and/or non-steroidal anti-inflammatory
agents.

9. Subjects with known clinically significant gastrointestinal disease including, but
not limited to, inflammatory bowel disease

10. New York Heart Association Classification II, III, or IV

11. Subjects with a blood pressure (BP) of >140/90 mmHg. Subjects taking
antihypertensive medications must be taking ≤2 medications to obtain this level of BP
control.

12. Subjects with tumors that are currently involving the lumen of the gastrointestinal
tract

13. Subjects with current evidence of cardiac ischemia or heart failure within the last 6
months, subjects who are receiving any medications for cardiac ischemia, subjects
with a B-type natriuretic peptide (BNP) value of >100 pg/mL, subjects with a LVEF of
<50%, subjects with pulmonary hypertension defined as a peak tricuspid velocity >3.4
m/s on doppler echocardiogram or subjects that have received a total cumulative dose
of ≥400 mg/m2 doxorubicin

14. Subjects with electrocardiogram (ECG) evidence of ischemia or ≥ Grade 2 ventricular
arrhythmia, subjects who have a history of acute myocardial infarction within 6
months, or subjects with unstable angina
GenderBoth
Ages21 Years
Accepts Healthy VolunteersNo
ContactsContact: Robert Stagg, PharmD
650-995-8289
robert.stagg@oncomed.com
Location CountriesAustralia, New Zealand, Spain

Administrative Information[ + expand ][ + ]

NCT Number NCT01189929
Other Study ID NumbersM18-002
Has Data Monitoring CommitteeYes
Information Provided ByOncoMed Pharmaceuticals, Inc.
Study SponsorOncoMed Pharmaceuticals, Inc.
CollaboratorsNovotech (Australia) Pty Ltd
Investigators Not Provided
Verification DateSeptember 2013

Locations[ + expand ][ + ]

Royal Prince Alfred Hospital
Camperdown, New South Wales, Australia, 2050
Principal Investigator: Peter Grimison, MD
Recruiting
Box Hill Hospital
Box Hill, Victoria, Australia, 3128
Principal Investigator: Prasad Cooray, MD
Recruiting
The Austin Hospital
Heidelberg, Victoria, Australia
Principal Investigator: Niall Tebbutt, MD
Recruiting
Christchurch Hospital
Christchurch, New Zealand
Principal Investigator: Mark Jeffery, MD
Recruiting
Waikato Hospital
Hamilton, New Zealand
Principal Investigator: Michael Jameson, MD
Recruiting
START Madrid
Madrid, Spain
Principal Investigator: Manuel Hidalgo, M.D., Ph.D.
Recruiting