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Phase 1, First-in-Human Study of RAD140 in Postmenopausal Women With Breast Cancer

A Phase 1, First-in-Human, Multi-Part Study of RAD140 in Postmenopausal Women With Hormone Receptor Positive Breast Cancer

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03088527
Enrollment
20
Registered
2017-03-23
Start date
2017-10-23
Completion date
2020-09-24
Last updated
2022-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hormone Receptor Positive Malignant Neoplasm of Breast

Brief summary

The primary purpose of this study is to evaluate the clinical safety profile, tolerability, and pharmacokinetic (PK) characteristics of RAD140 in hormone receptor positive breast cancer.

Detailed description

This is a first in humans study that is designed to evaluate the clinical safety profile, tolerability, and pharmacokinetic (PK) characteristics of RAD140 in hormone receptor positive breast cancer.

Interventions

DRUGRAD140

RAD140 will be supplied as formulated drug-in-capsules for oral administration.

Sponsors

Stemline Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Progressive metastatic or locally advanced or metastatic breast cancer. * Clinically confirmed as postmenopausal. * Eastern Cooperative Oncology Group (ECOG) score of 0 to 1 at screening. Key

Exclusion criteria

* HER2 positive patients by local laboratory testing. * Triple negative breast cancer. * Any chemotherapy within the 28 days prior to the first dose of study drug. * Any non-chemotherapy anti-cancer drug less than 5 half-lives (30 days for biologics) or less than 14 days for small molecule therapeutics, or if half-life is not known. * Tamoxifen and aromatase inhibitors within 14 days prior to the first dose of study drug. * Fulvestrant within 30 days prior to first dose of study drug. * Any investigational drug therapy within 5 half-lives of the previous investigational study drug or 30 days, whichever is shorter. * Radiation therapy for breast cancer within 2 weeks of dosing and planning to have radiation therapy during participation in this study. * Known history of human immunodeficiency virus infection (HIV) or hepatitis C or active hepatitis B infection, unless the patient was diagnosed \>10 years prior to enrollment and no evidence of active liver disease. * Currently taking testosterone, methyltestosterone, oxandrolone (Oxandrin), oxymetholone, danazol, fluoxymesterone (Halotestin), or testosterone-like agents. * Untreated or uncontrolled brain metastasis. * Diagnosed with or treated for cancer within the previous 2 years, other than breast cancer or non-melanoma carcinoma of the skin. * Pregnant and nursing females.

Design outcomes

Primary

MeasureTime frameDescription
Number of adverse events related to study treatmentUp to 30 days after end of treatmentNumber of adverse events related to study treatment
Incidence rate of dose-limiting toxicities (DLTs) RAD140 treatmentFirst 28 days of treatmentIncidence rate of dose-limiting toxicities (DLTs) RAD140 treatment
Number participants with dose interruptions and dose adjustmentsUp to 30 days after end of treatmentNumber participants with dose interruptions and dose adjustments

Secondary

MeasureTime frameDescription
Maximum plasma concentration (Cmax)Day 1 and 15Maximum plasma concentration (Cmax)
Tumor responseScreening and every 8 weeks for up to 12 months of treatmentClinical benefit rate (CBR) or objective response rate (ORR) will be assessed by Investigators per RECIST v1.1 along with time-related efficacy endpoints.
Time to maximum plasma concentration (Tmax)Day 1 and 15Time to maximum plasma concentration (Tmax)
Area under the plasma concentration versus time curve (AUC)Day 1 and Day 15Area under the plasma concentration versus time curve (AUC)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 22, 2026