Phase 1 Study of BXQ-350 in Adult Patients With Advanced Solid Tumors



Status:Recruiting
Conditions:Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - 80
Updated:1/25/2019
Start Date:September 2016
End Date:January 2020
Contact:Bexion Pharmaceuticals
Email:clinicaltrialinfo@bexionpharma.com
Phone:1-800-746-3915

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Phase 1, Dose-Escalation, Open-label, Safety and Pharmacokinetic, First in Human Study of BXQ-350 Administered as a Single Agent by Intravenous Infusion in Adult Patients With Advanced Solid Tumors and Recurrent High-Grade Gliomas

The objective of this study is to characterize the safety profile and determine the maximum
tolerate dose (MTD) of BXQ-350, when given as a single agent at escalating doses, according
to the investigational product (IP) related dose-limiting toxicities (DLTs) in patients with
advanced solid tumors. Secondarily to assess the preliminary antitumor activity of BXQ-350 in
solid tumors and recurrent high grade gliomas.

This is a first in man study of BXQ-350, a novel anti-neoplastic therapeutic agent composed
of two components: Saposin C (SapC), an expressed (human) lysosomal protein, and the
phospholipid dioleoylphosphatidyl-serine (DOPS), a phospholipid located on cell membranes.
When both the components are assembled together forming stable SapC-DOPS nanovesicles
(clinical formulation BXQ-350), the agent exhibits the propensity to enter the body and
brain, target cells in the tumor mass, and induce cell death.

The study is divided into 3 parts:

1. Dose Escalation Scheme Sequential cohorts of adult patients with advanced solid tumors
and recurrent high-grade gliomas will be treated with escalating doses of BXQ-350 until
the MTD is established, or in the absence of a MAD, the highest planned DL.

2. During Part 2, patients with advanced solid tumors and recurrent high-grade gliomas will
be enrolled and administered BXQ-350 at the MTD determined in Part 1 or at the highest
planned DL, if the MAD is not reached.

3. During Part 3, patients with either ependymoma, GI tumors , or advanced solid tumors
other than HGG, will be enrolled and administered BXQ-350 at the 2.4 mg/kg dose level.

Inclusion Criteria:

- Each patient must meet the following criteria:

1. Provide signed, written informed consent prior to the initiation of any
study-specific procedures

2. Have histologically or cytologically confirmed diagnosis of advanced solid tumor
cancer (excluding lymphomas) for which there is no further standard therapy or
when standard therapy is contraindicated. Patients with HGG must have shown
unequivocal evidence for recurrence or progression by MRI scan or must have
histologically proven tumor recurrence.

3. Patients with HGG: Have previously received radiotherapy and temozolomide

4. For patients with HGG and receiving glucocorticoid therapy, must be on stable or
decreasing equivalent daily dose of glucocorticoids for 2 weeks (14 days) prior
to dose assignment

5. Have measurable or non-measurable disease per RECIST 1.1 criteria for solid
tumors and RANO criteria for HGG

6. Are males or females aged ≥ 18 years

7. Have Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) 0 - 2

8. Have acceptable liver function defined as:

- Total serum bilirubin ≤ 1.5 × upper limit of normal for the study site (ULN)
(in patients with known Gilbert Syndrome, total bilirubin ≤ 3 × ULN, with
direct bilirubin ≤ 1.5 × ULN)

- Aspartate Transaminase (AST), Serum Glutamic Oxaloacetic Transaminase
(SGOT), Alanine Transaminase (ALT), Serum Glutamic-Pyruvic Transamine (SGPT)
≤ 3 × ULN (if liver metastases are present, then ≤ 5 × ULN is allowed)

- Serum albumin ≥ 3 g/dL

9. Have acceptable renal function defined as:

Serum creatinine ≤ 1.5 × ULN, OR calculated creatinine clearance ≥ 45 mL/min for
patients with creatinine levels above 1.5 mg/dL

10. Have acceptable bone marrow function defined as:

- Absolute neutrophil count (ANC) ≥ 1,500 cells/mm3

- Platelet count ≥ 100,000 cells/mm3

- Hemoglobin > 9.0 g/dL

11. Have acceptable coagulation parameters defined as:

- International normalized ratio (INR) ≤ 2 × ULN

- Activated partial thromboplastin time (aPTT) within normal limits

12. Have a negative serum pregnancy test result at screening (for females of child
bearing potential (FCBP); not applicable to patients who are unable to become
pregnant, including those with tubal ligation, bilateral oophorectomy and/or
hysterectomy, post-menopausal is defined as > 12 months since last menstrual
cycle)

13. FCBP and male patients whose sexual partner(s) are FCBP must agree to abstain
from heterosexual activity or use a double barrier method of contraception (e.g.,
condom and occlusive cap with spermicide) or highly effective contraception
(intrauterine device or system, established hormonal contraceptive methods on a
stable dose from the time of the last menstrual cycle, or vasectomized partner
with confirmed azoospermia) from the time of study entry to 1 month after the
last day of treatment

Exclusion Criteria:

- Patients must not meet any of the following criteria:

1. Have a concurrent malignancy or have had another malignancy within 1 year prior
to initiation of screening (with the exception of adequately treated basal or
squamous cell carcinoma, melanoma in situ, early-stage prostate cancer
(T1a-cN0M0), ductal carcinoma in situ of the breast or cervical carcinoma in
situ)

2. Patients with solid tumors: Have received anticancer therapies, including
radiation therapy, cytotoxic agents, targeted agents or endocrine therapy within
2 weeks prior to dose assignment

3. Patients with HGG: Have received anticancer therapies including: radiation
therapy to current site of disease within 12 weeks of dose assignment, targeted
agent therapy within 2 weeks of dose assignment, nitrosoureas within 6 weeks of
dose assignment, procarbazine within 3 weeks of dose assignment, or other
cytotoxic agents within 4 weeks of dose assignment

4. Have not recovered from toxicity of prior therapy defined as a return to < grade
1 at the time of dose assignment, graded according to CTCAE v4.03 (excluding
alopecia, neuropathy, and lymphopenia)

5. Have received prior treatment with any investigational drug within 4 weeks prior
to dose assignment

6. Have had major surgery other than a minor outpatient procedure within 4 weeks
prior to dose assignment or have not recovered from major side effects of the
surgery if more than 4 weeks have elapsed since surgery

7. Have a history of cardiac dysfunction including:

- Myocardial infarction within 6 months prior to initiation of screening

- History of documented congestive heart failure (New York Heart Association
functional classification III-IV) within 6 months prior to initiation of
screening

- Active cardiomyopathy

- ECG with correctd QT interval (QTc) >450 msec in males or >470 msec in
females at screening

8. Have a known history of HIV seropositivity

9. Are pregnant or nursing (lactating), where pregnancy is defined as the state of a
female after conception and until the termination of gestation, confirmed by a
positive serum human chorionic gonadotropin (hCG) laboratory test

10. Have symptomatic brain metastases or leptomeningeal disease

11. Have active (acute or chronic) or uncontrolled severe infections

12. Have active poor wound healing (delayed healing, wound infection or fistula)

13. Have poorly controlled hypertension defined as blood pressure >160/90 on at least
2 repeated determinations on separate days within 2 weeks (14 days) prior to
initiation of screening

14. Have evidence of active clinically significant bleed (e.g., gastrointestinal
bleed, hemoptysis, or gross hematuria) at screening

15. Have other concurrent severe and/or uncontrolled medical condition that would, in
the site Investigator's judgment contraindicate the patient's participation in
the clinical study
We found this trial at
4
sites
1201 Camino de Salud Northeast
Albuquerque, New Mexico 87131
(505) 272-4946
Principal Investigator: Olivier Rixe, MD, PhD
Phone: 505-925-0367
University of New Mexico Cancer Center It’s been 40 years since the New Mexico State...
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Cincinnati, Ohio 45267
Principal Investigator: John C Morris, MD
Phone: 513-584-0436
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Cincinnati, OH
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Columbus, Ohio 43210
Principal Investigator: Vinay Puduvalli, MBBS
Phone: 614-293-7833
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Columbus, OH
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Lexington, Kentucky
Principal Investigator: John Villano, MD
Phone: 859-323-7628
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Lexington, KY
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