A Study to Evaluate Immunotherapy Combinations in Participants With Gastrointestinal Malignancies



Status:Recruiting
Conditions:Colorectal Cancer, Cancer, Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:3/22/2019
Start Date:October 15, 2018
End Date:July 30, 2021
Contact:Medical Director
Email:ClinicalTrialInquiry@arcusbio.com
Phone:510-694-6200

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A Phase 1/1b Study to Evaluate the Safety and Tolerability of Immunotherapy Combinations in Participants With Gastrointestinal Malignancies

This is a Phase 1/1b, open-label, dose-escalation, and dose-expansion study to evaluate the
safety, tolerability, pharmacokinetic (PK), pharmacodynamic (PD), and clinical activity of
AB928 in combination with mFOLFOX in participants with advanced metastatic gastroesophageal
Cancer (GEC) or colorectal cancer (CRC).

Dose escalation of AB928 in combination with mFOLFOX at standard doses will be assessed in
participants with advanced metastatic GEC or CRC. In this dose escalation combination study
participants will receive oral administration of AB928 as well as iv infusion of mFOLFOX.

Dose expansion of AB928 in combination with mFOLFOX at standard doses will be assessed in
participants with advanced metastatic GEC or CRC. The dose of AB928 used will be determined
based on the findings from the dose-escalation phase.

Overall duration of treatment will depend on how well the treatment is tolerated. Treatment
may continue until unacceptable toxicity or progressive disease or other reasons specified in
the protocol.

Inclusion Criteria:

1. Male or female participants ≥ 18 years

2. Histologically confirmed gastroesophageal cancer or colorectal cancer that is
metastatic, advanced or recurrent with progression

3. Participants for whom mFOLFOX is considered appropriate therapy

4. Must have at least 1 measurable lesion per RECIST v1.1.

5. Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1.

6. Must have received standard of care, including potentially curative available
therapies or interventions.

7. Confirm that an archival tissue sample is available and ≤ 6 months old; if not, a new
biopsy of a tumor lesion must be obtained.

8. Adequate organ and marrow function

Exclusion Criteria:

1. Use of any live vaccines against infectious diseases (eg, influenza, varicella) within
4 weeks (28 days) of initiation of investigational product.

2. Underlying medical conditions that, in the Investigator's or Sponsor's opinion, will
make the administration of investigational product hazardous (eg, interstitial lung
disease, active infections requiring antibiotics, recent hospitalization with
unresolved symptoms) or obscure the interpretation of toxicity determination or AEs,
or concurrent medical condition requiring the use of immunosuppressive medications or
immunosuppressive doses of systemic or absorbable topical corticosteroids.

3. Has known psychiatric or substance abuse disorders that would interfere with
cooperation with the requirements of the trial.

4. Is pregnant or breastfeeding or expecting to conceive or father children within the
projected duration of the study, starting with the pre-screening or screening visit
through 30 days after the last dose of AB928 in combination with mFOLFOX.

5. Any active autoimmune disease or a documented history of autoimmune disease or
syndrome that required systemic treatment in past 2 years (ie, with use of
disease-modifying agents, corticosteroids, or immunosuppressive drugs), except for
vitiligo or resolved childhood asthma/atopy.

1. Replacement therapy (eg, thyroxine, insulin, or physiologic corticosteroid
replacement therapy for adrenal or pituitary insufficiency) is not considered a
form of systemic treatment.

2. Participants with asthma who require intermittent use of bronchodilators, inhaled
corticosteroids, or local corticosteroid injections will not be excluded from
this study. Participants on chronic systemic corticosteroids will be excluded
from the study.

6. Prior malignancy active within the previous 2 years except for locally curable cancers
that have been apparently cured, such as basal or squamous cell skin cancer,
superficial bladder cancer or carcinoma in situ of the cervix, breast, or prostate.

7. Oxaliplatin-based therapy as the most recent regimen prior to enrolling in the study,
except if prior oxaliplatin-based therapy was received as the most recent regimen in
the adjuvant setting and completed ≥ 6 months prior to study enrollment.

8. Prior chemotherapy, targeted small-molecule therapy, or radiation therapy within 4
weeks prior to Day 1 or has not recovered (ie, ≥ Grade 1 or baseline) from AEs due to
a previously administered agent, except ≤ Grade 2 alopecia or ≤ Grade 2 neuropathy and
other AEs considered not clinically significant by the Medical Monitor and
Investigator.

9. Participants who are eligible for potentially curative available therapies or
interventions.

10. Use of other investigational drugs (drugs not marketed for any indication) within 28
days of investigational product administration.
We found this trial at
14
sites
Tyler, Texas 75702
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Albury, New South Wales
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Albury,
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Austin, Texas 78705
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Austin, TX
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Dallas, Texas 75246
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Denver, Colorado 80218
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Denver, CO
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Fort Worth, Texas 76104
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Greenville, South Carolina 29605
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Greenville, SC
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Huntersville, North Carolina 28078
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Huntersville, NC
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Las Vegas, Nevada 89169
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Las Vegas, NV
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New Haven, Connecticut 06519
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New Haven, CT
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Rockville, Maryland 20850
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Rockville, MD
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Royal Oak, Michigan 48073
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Royal Oak, MI
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San Antonio, Texas 78240
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San Antonio, TX
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Tucson, Arizona 85715
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Tucson, AZ
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