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A Study of Vantictumab (OMP-18R5) in Combination With Paclitaxel in Locally Recurrent or Metastatic Breast Cancer

A Phase 1b Dose Escalation Study of Vantictumab (OMP-18R5) in Combination With Paclitaxel in Patients With Locally Recurrent or Metastatic Breast Cancer

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01973309
Enrollment
37
Registered
2013-10-31
Start date
2013-09-30
Completion date
2017-12-31
Last updated
2020-09-09

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

Conditions

Metastatic Breast Cancer

Keywords

Locally Recurrent, Metastatic Breast Cancer

Brief summary

This is an open-label Phase 1b dose-escalation study to assess the safety, tolerability, and PK of vantictumab when combined with paclitaxel.

Detailed description

Once the maximum tolerated dose (MTD) or maximum administered dose (MAD) has been determined, up to 10 patients may be enrolled in the cohort-expansion phase to better characterize the safety, tolerability and PK of vantictumab combined with paclitaxel. Up to approximately 34 patients may be enrolled into the study.

Interventions

DRUGVantictumab combined with paclitaxel

Vantictumab combined with paclitaxel will be administered IV.

Sponsors

OncoMed Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Signed Informed Consent Form * Age ≥18 years * Histologically documented adenocarcinoma of the breast with locally recurrent or metastatic disease o Patients with breast cancer overexpressing HER2 are not eligible. * Availability of tumor tissue, either archival FFPE or obtained at study entry through fresh biopsy * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * All acute treatment-related toxicity from prior therapy must have resolved to Grade ≤ 1 prior to study entry * Adequate hematologic and end-organ function * Evaluable or measurable disease per RECIST v1.1 * For women of childbearing potential, agreement to use two effective forms of contraception

Exclusion criteria

* Known significant dose delays during prior treatment with a taxane due to drug-related toxicities * Prior treatment with more than two regimens of systemic cytotoxic chemotherapy for locally recurrent or metastatic disease * Treatment with any anti-cancer therapy within 3 weeks prior to initiation of study treatment

Design outcomes

Primary

MeasureTime frameDescription
Safety and tolerability of vantictumab in combination with paclitaxel in patients with locally recurrent or metastatic breast cancerSubjects will be treated and observed for DLT through the end of the first cycle (Days 0-28 days).The maximum tolerated dose (MTD) will be determined in patients treated with vantictumab in combination with paclitaxel

Secondary

MeasureTime frameDescription
Pharmacokinetics (PK) of vantictumab when administered in combination with paclitaxel to patients with locally recurrent or metastatic breast cancerPlasma sample for Pharmacokinetics (PK) analysis to be obtained prior to the vantictumab infusion on Days 0, 14, 56 and 70 and at the end of the vantictumab infusion with paclitaxel infusion on Days 0 and 56.Apparent half life, AUC, clearance, volume of distribution

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026