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CompletedNCT03088527Updated Aug 18, 2022

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

A Phase 1 interventional study of RAD140 in Hormone Receptor Positive Malignant Neoplasm of Breast, sponsored by Stemline Therapeutics, Inc.. Completed at 5 sites in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-08-18.

Sponsored by Stemline Therapeutics, Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Aug 2020, 6 years 1 month ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years and older
Sex
Female
01

Study 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.

Read the 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.

02

Conditions studied

  • Hormone Receptor Positive Malignant Neoplasm of Breast
03

In context

Neoplasms

9,365 studies on the registry are indexed under Neoplasms; 2,489 are open to participants now.

This study's enrollment of 20 is below the median of 50 across 7,253 interventional studies indexed under Neoplasms.

Browse Neoplasms studies →

Lead sponsor

Stemline Therapeutics, Inc. is the lead sponsor of 22 studies on the registry; 7 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility 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.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    RAD140 Part A and Part B

    Part A, Dose Escalation: Patients will be assigned sequentially to escalating doses of RAD140. Part B, Safety Expansion: Once the maximum tolerated dose (MTD) has been identified and/or a recommended dose escalation (RDE) has been determined, additional patients will be enrolled to further evaluate the safety, tolerability and preliminary clinical activity of the recommended dose.

    Drug: RAD140

Interventions

  • DrugRAD140

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

06

What researchers measure

Primary outcomes

  1. Incidence rate of dose-limiting toxicities (DLTs) RAD140 treatment

    Incidence rate of dose-limiting toxicities (DLTs) RAD140 treatment

    Time frame: First 28 days of treatment

  2. Number of adverse events related to study treatment

    Number of adverse events related to study treatment

    Time frame: Up to 30 days after end of treatment

  3. Number participants with dose interruptions and dose adjustments

    Number participants with dose interruptions and dose adjustments

    Time frame: Up to 30 days after end of treatment

Secondary outcomes

  1. Maximum plasma concentration (Cmax)

    Maximum plasma concentration (Cmax)

    Time frame: Day 1 and 15

  2. Time to maximum plasma concentration (Tmax)

    Time to maximum plasma concentration (Tmax)

    Time frame: Day 1 and 15

  3. Area under the plasma concentration versus time curve (AUC)

    Area under the plasma concentration versus time curve (AUC)

    Time frame: Day 1 and Day 15

  4. Tumor response

    Clinical benefit rate (CBR) or objective response rate (ORR) will be assessed by Investigators per RECIST v1.1 along with time-related efficacy endpoints.

    Time frame: Screening and every 8 weeks for up to 12 months of treatment

07

Study locations

5 sites
  • Yale Cancer Center
    New Haven, Connecticut 06510, United States
  • Cancer Center Protocol Office
    Boston, Massachusetts 02114, United States
  • Barbara Ann Karmanos Cancer Center
    Detroit, Michigan 48201, United States
  • Washington University School of Medicine
    Saint Louis, Missouri 63110, United States
  • Sarah Cannon Research Institute
    Nashville, Tennessee 37203, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 18, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03088527
Lead sponsor
Stemline Therapeutics, Inc.
Responsible party
Sponsor
First posted
Mar 23, 2017
Start date
Oct 23, 2017
Primary completion
Aug 28, 2020
Completion
Sep 24, 2020
Last update
Aug 18, 2022

Study contacts

Sr. Director, Clinical Operations
study director · Radius

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.

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