Leflunomide in Previously Treated Metastatic Triple Negative Cancers
Public ClinicalTrials.gov record NCT03709446. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase I/II Trial of Leflunomide in Women With Previously Treated Metastatic Triple Negative Cancers
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Triple negative breast cancer (TNBC) represents about 15% of breast cancers and is characterized by the lack of expression of estrogen receptor (ER), progesterone receptor (PR), and HER-2 non-amplification. Women with TNBC tend to be younger, African American, and BRCA-1 germline carriers. The hallmark of this subtype is early metastatic recurrences with a peak frequency 1-2 years. Prognosis for metastatic TNBC is especially poor with median survival of about 1 year as compared to about 2-4 years with other types of metastatic breast cancer. The primary objective of the phase I part of this study is to determine the safety, tolerability and maximum tolerated dose of leflunomide in women with previously treated TNBC (or ER+ , HER2-neg MBC in Phase I). The primary objective of the phase 2 part of this study is to determine the efficacy of leflunomide in patients with TNBC. Leflunomide, which will be taken daily by mouth, is an inhibitor of dihydroorotate dehydrogenase (DHODH). This proposal will test if DHODH is a novel target for a particular subset of women with metastatic TNBC.
Study identification
- NCT ID
- NCT03709446
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 17 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- Female
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 15, 2019
- Primary completion
- Nov 26, 2025
- Completion
- Nov 26, 2025
- Last update posted
- Mar 18, 2026
2019 – 2025
United States locations
- U.S. sites
- 3
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Mt Sinai Chelesa | New York | New York | 10011 | — |
| Mt Sinai West | New York | New York | 10019 | — |
| Icahn School of Medicine at Mount Sinai | New York | New York | 10029 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03709446, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 18, 2026 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03709446 live on ClinicalTrials.gov.