AGEN-1884, an Anti-CTLA-4 Antibody, in Advanced Solid Cancers



Status:Recruiting
Conditions:Cancer, Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:5/3/2017
Start Date:April 2016
End Date:October 2018
Contact:Agenus Medical Monitor, MD
Phone:781-674-4508

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Study To Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of an Anti-CTLA-4 Human Monoclonal Antibody (AGEN1884), and to Estimate the Maximum Tolerated Dose in Subjects With Advanced or Refractory Cancer

This is an open-label, Phase 1, multicenter study to evaluate the safety, PK, and PD of an
anti-CTLA-4 human monoclonal antibody (AGEN1884) and to estimate the MTD in subjects with
advanced or refractory cancer. The study will consist of a 3+3 dose escalation cohort
starting at a near minimally anticipated biologic effect level (MABEL) dose with expansion
cohorts at 1 mg/kg and 3 mg/kg..


Inclusion Criteria:

1. Sign informed consent.

2. ≥18 years of age.

3. Histological or cytological diagnosis of solid cancer or lymphoma that is considered
incurable and without therapies with established benefit. Biopsy is not necessary for
subjects with known prior diagnosis and clinical or radiographic evidence of
recurrence.

4. Eastern Cooperative Oncology Group score of 0 or 1.

5. Life expectancy ≥12 weeks.

6. Adequate cardiac function (≤New York Heart Association [NYHA] Class II).

7. Adequate organ function defined as absolute neutrophil count ≥1,500×10^6/L, absolute
lymphocyte count ≥500/mm^3, and platelet count ≥100,000×10^6/mm^3. Adequate liver
function defined as aspartate aminotransferase and alanine aminotransferase ≤2.5× the
upper limit of institutional normal, bilirubin ≤1.5 mg/dL or 25 µmol/L. Adequate
renal function defined as blood urea nitrogen and serum creatinine of ≤1.5 mg/dL or
130 µmol/L.

8. Female subjects of childbearing potential and fertile male subjects must agree to use
adequate contraception or abstain from sexual activity from the time of consent
through 90 days after the end of study drug. Adequate contraception includes condoms
with contraceptive foam; oral, implantable, or injectable contraceptives;
contraceptive patch; intrauterine device; diaphragm with spermicidal gel; or a sexual
partner who is surgically sterilized or postmenopausal.

Exclusion Criteria

1. Other malignancies treated within the last 5 years, except in situ cervix carcinoma
or non-melanoma skin cancer.

2. Other form(s) of antineoplastic therapy anticipated during the period of the study.

3. Previous severe hypersensitivity reaction to another monoclonal antibody, such as
colitis or pneumonitis requiring treatment with steroids, or has a history of
interstitial lung disease.

4. History of acute diverticulitis, intra-abdominal abscess, gastrointestinal
obstruction, or abdominal carcinomatosis.

5. Primary or secondary immunodeficiency (including immunosuppressive disease,
autoimmune disease [including autoimmune endocrinopathies, such as hypothyroidism,
and insulin dependent diabetes mellitus], or usage of immunosuppressive medications).

6. Subjects with a known history of human immunodeficiency virus 1 and 2, human T
lymphotropic virus 1, hepatitis B virus, or active hepatitis C virus.

7. Subjects with a history of connective tissue disorders.

8. Receipt of anticancer medications or investigational drugs within the following
intervals before the first administration of study drug:

1. ≤14 days for chemotherapy, targeted small molecule therapy, or radiation
therapy. Subjects must also not have had radiation pneumonitis as a result of
treatment, and cannot participate in the study if they are on chronic
corticosteroids for radiation pneumonitis. A 1-week washout is permitted for
palliative radiation to non-central nervous system (CNS) disease with sponsor
approval.

Note: Bisphosphonates and denosumab are permitted medications.

2. ≤28 days for a prior immunotherapy. No prior therapy with check point
inhibitors, costimulatory agonists or immunomodulatory agents is allowed.

3. ≤28 days for prior monoclonal antibody used for anticancer therapy with the
exception of denosumab.

4. ≤28 days for prior systemic corticosteroid therapy.

5. ≤7 days for immune-suppressive-based treatment for any reason. Note: Use of
inhaled or topical corticosteroid use for radiographic procedures is permitted.

Note: The use of physiologic corticosteroid replacement therapy may be approved
after consultation with the sponsor.

6. ≤28 days or 5 half-lives (whichever is longer) before the first dose for all
other investigational study drugs or devices.

9. Has not recovered to Grade ≤1 from toxic effects of prior therapy and/or
complications from prior surgical intervention before starting therapy.

Note: Subjects with Grade ≤2 neuropathy is an exception and may enroll.

10. Uncontrolled infection or other serious medical illnesses.

11. History or presence of an abnormal ECG that, in the investigator's opinion, is
clinically meaningful. Screening corrected QT (QTc) interval > 470 msec is excluded
(corrected by Fridericia). If a single QTc is > 470 milliseconds, the subject may
enroll if the average QTc for the 3 ECGs is < 470 milliseconds. For subjects with an
intraventricular conduction delay (QRS interval > 120 milliseconds), the JTc interval
may be used in place of the QTc with sponsor approval. The JTc must be < 340
milliseconds if JTc is used in place of the QTc. Subjects with left bundle branch
block are excluded.

Note: QTc prolongation due to pacemaker may enroll if the JTc is normal or with
medical monitor approval.

12. Any medications that are known to prolong the QTc interval.

13. Any medical conditions that, in the opinion of the investigator, would preclude use
of AGEN1884, including AGEN1884 hypersensitivity.

14. Women who are pregnant or breast-feeding.

15. Concurrent participation in other investigational drug trials.

16. Subjects with a history of or active CNS tumors or metastases from non-CNS tumors.
We found this trial at
4
sites
Miami, Florida 33136
Principal Investigator: Breelyn A Wilky, MD
Phone: 305-243-9899
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Charlotte, North Carolina 28211
Principal Investigator: Jimmy Hwang, MD
Phone: 980-442-5225
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Charlotte, NC
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Chicago, Illinois 60611
Principal Investigator: Priya Kumthekar, MD
Phone: 312-695-1341
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Chicago, IL
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Columbus, Ohio 43210
Principal Investigator: Robert Wesolowski, MD
Phone: 614-685-6456
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Columbus, OH
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