A Phase 1 Trial of a Novel XPO1 Inhibitor in Patients With Advanced Solid Tumors



Status:Recruiting
Conditions:Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:3/2/2019
Start Date:February 2016
End Date:June 2020
Contact:Shay Shemesh
Email:Trials@stemline.com
Phone:718-509-3742

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A Phase 1 Trial of SL-801, a Novel Inhibitor of XPO1 Nuclear Export, in Patients With Advanced Solid Tumors

Study SL-801-0115 is a dose-escalation study evaluating multiple doses and schedules of
orally administered SL-801 in patients with Advanced Solid Tumors

Study SL-801-0115 is a first-in-human, dose-escalation study in patients with advanced (i.e.,
metastatic or locally advanced and unresectable) solid tumors that are resistant to or
relapsed following available standard systemic therapy or for which there is no standard
systemic therapy and additional radiation therapy or other loco-regional therapies are not
considered feasible. Eligible patients will be enrolled and receive treatment with SL-801 in
a 28-day cycle. SL-801 will be administered orally and the dose regimen will depend on the
cohort in which the patient is enrolled.

The study plans to enroll approximately 70 adult patients at multiple study centers in the
US.

Inclusion Criteria:

- The patient must have histologic or cytologic evidence of a malignant solid tumor and
must have disease that is resistant to or relapsed following available standard
systemic therapy, or for which there is no standard systemic therapy or reasonable
therapy likely to result in clinical benefit.

- The patient must have advanced disease, defined as cancer that is either metastatic,
OR locally advanced and unresectable (and for which additional radiation therapy or
other locoregional therapies are not considered feasible).

- The patient must have disease that is measurable by standard imaging techniques, per
the Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1), or
evaluable per RECIST 1.1. (For patients with prior radiation therapy, measurable
lesions must be outside of any prior radiation field[s], unless disease progression
has been documented at that disease site subsequent to radiation.)

- The patient is ≥18 years old.

- The patient has an ECOG PS of 0-2.

- The patient has adequate baseline organ function, as demonstrated by the following:

- Serum creatinine ≤1.5 × institutional upper limit of normal (ULN) or calculated
creatinine clearance >30 mL/min.

- Serum albumin ≥2.5 g/dL.

- Bilirubin ≤1.5 × institutional ULN.

- Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤2.5 ×
institutional ULN (patients with hepatic metastases must have AST/ALT ≤5 times
ULN).

- International normalized ratio (INR) ≤1.5 or prothrombin time (PT) ≤1.5 × ULN;
and either partial thromboplastin time or activated partial thromboplastin time
(PTT or aPTT) ≤1.5 × ULN.

- The patient has adequate baseline hematologic function, as demonstrated by the
following:

- Absolute neutrophil count (ANC) ≥1.5×10⁹/L

- Hemoglobin ≥8 g/dL, with no red blood cell (RBC) transfusions within the prior 14
days.

- Platelet count ≥100×10⁹/L, with no platelet transfusions within the prior 14
days.

- If the patient is a woman of child bearing potential (WOCBP), she has had a negative
serum or urine pregnancy test within 1 week prior to treatment.

- The patient (male and female) agrees to use acceptable contraceptive methods for the
duration of time on the study, and continue to use acceptable contraceptive methods
for 1 month after the last dose of SL-801.

- The patient has signed informed consent prior to initiation of any study-specific
procedures or treatment.

- The patient is able to adhere to the study visit schedule and other protocol
requirements, including follow-up for survival assessment.

Exclusion Criteria:

- The patient has persistent clinically significant ≥Grade 2 toxicities from previous
anticancer therapy (excluding Grade 2 chemotherapy-related neuropathy which is
permitted, and excluding Grade 2-3 laboratory abnormalities if they are not associated
with symptoms, are not considered clinically significant by the Investigator, and can
be managed with available medical therapies).

- The patient has received treatment with chemotherapy, external-beam radiation, or
other systemic anticancer therapy within 28 days prior to study entry (Patients with
advanced prostate cancer who are receiving luteinizing hormone releasing hormone
[LHRH] agonists are permitted onto the study and should continue use of these agents
during study treatment).

- The patient has received treatment with an investigational systemic anticancer agent
within 28 days prior to C1D1.

- The patient has previously received treatment with SL-801 or another investigational
agent that inhibits the XPO1/CRM1 pathway.

- The patient has an additional active malignancy that may confound the assessment of
the study endpoints. Patients with a past cancer history (active malignancy within 2
years prior to study entry) with substantial potential for recurrence must be
discussed with the Sponsor before study entry. Patients with the following concomitant
neoplastic diagnoses are eligible: non-melanoma skin cancer, carcinoma in situ
(including transitional cell carcinoma, cervical intraepithelial neoplasia),
organ-confined prostate cancer with no evidence of progressive disease.

- The patient has clinically significant cardiovascular disease (e.g., uncontrolled or
any New York Heart Association Class 3 or 4 congestive heart failure [Appendix 1],
uncontrolled angina, history of myocardial infarction, unstable angina or stroke
within 6 months prior to study entry, uncontrolled hypertension or clinically
significant arrhythmias not controlled by medication).

- The patient has uncontrolled, clinically significant pulmonary disease (e.g., chronic
obstructive pulmonary disease, pulmonary hypertension) that, in the Investigator's
opinion, would put the patient at significant risk for pulmonary complications during
the study.

- The patient has known active or suspected brain or leptomeningeal metastases. (Central
nervous system [CNS] imaging is not required prior to study entry unless there is a
clinical suspicion of CNS involvement). Patients with stable, treated brain metastases
are eligible provided there is no evidence of CNS disease growth on imaging for at
least 3 months following radiation therapy or other locoregional ablative therapy to
the CNS.

- The patient is receiving immunosuppressive therapy for prophylaxis following a prior
organ transplant (solid organ or allogeneic stem cell) or management of
immune-mediated toxicities due to immunotherapy. Low-dose corticosteroid (defined as <
10mg/day of prednisone or equivalent) therapy is permitted.

- The patient has uncontrolled intercurrent illness including, but not limited to,
uncontrolled infection, disseminated intravascular coagulation, or psychiatric
illness/social situations that would limit compliance with study requirements.

- The patient is pregnant or breast feeding.

- The patient has known positive status for human immunodeficiency virus active or
chronic Hepatitis B or Hepatitis C.

- The patient is oxygen-dependent.

- The patient has any medical condition which in the opinion of the Investigator places
the patient at an unacceptably high risk for toxicities.
We found this trial at
6
sites
Sarasota, Florida 34236
Principal Investigator: Judy Wang, MD
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7777 Forest Lane
Dallas, Texas 75230
Principal Investigator: Minal Barve, MD
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Dallas, TX
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1801 Inwood Rd
Dallas, Texas 75390
(214) 645-3300
Principal Investigator: Kevin Courtney, MD
University of Texas Southwestern Medical Center UT Southwestern is an academic medical center, world-renowned for...
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Dallas, TX
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3322 West End Avenue
Nashville, Tennessee 37203
(615)329-SCRI (7274)
Principal Investigator: Todd Bauer, MD
Sarah Cannon Research Institute Sarah Cannon Research Institute (SCRI) is a global strategic research organization...
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Nashville, TN
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333 Cedar Street
New Haven, Connecticut 06520
(203) 785-4095
Principal Investigator: Patricia LoRusso, DO
Phone: 203-785-5944
Yale Cancer Center Yale Cancer Center combines a tradition of innovative cancer treatment and quality...
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New Haven, CT
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Seattle, Washington 98109
Principal Investigator: Gabriella Chiorean, MD
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Seattle, WA
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