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A Study of SC-005 in Subjects With Triple Negative Breast Cancer (TNBC)

Phase 1
Terminated
Conditions
Breast Cancer
Interventions
Drug: SC-005
Registration Number
NCT03316794
Lead Sponsor
AbbVie
Brief Summary

This is a multicenter, open-label study in participants with triple negative breast cancer (TNBC) to study the safety, tolerability, pharmacokinetics and preliminary efficacy of SC-005. This study consists of 2 parts: Part A (dose regimen finding) followed by Part B (dose expansion).

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
2
Inclusion Criteria
  • Histologically or cytologically confirmed advanced TNBC that is relapsed, refractory, or progressive and not eligible for another standard therapy that would confer clinical benefit to the subject.

    • Advanced disease is defined as metastatic disease or locally advanced disease that is not amenable to surgery or radiotherapy with curative intent
    • TNBC is defined as:
  • <1% staining by immunohistochemistry (IHC) for estrogen (ER) and progesterone (PR) receptors, 0 or 1+ IHC for human epidermal growth factor receptor 2 (HER2), OR

  • Negative for HER2 amplification by in situ hybridization (ISH) for 2+ IHC disease.

  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

  • Adequate hematologic, hepatic, and renal function.

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Exclusion Criteria
  • Any significant medical condition including any suggested by Screening laboratory findings that, in the opinion of the Investigator or Sponsor, may place the subject at undue risk from the study.
  • Has ECG abnormalities that make QT interval corrected (QTc) evaluation difficult (e.g., severe morphologic abnormalities).
  • Prior exposure to a pyrrolobenzodiazepine or indolino-benzodiazepine based drug, or known hypersensitivity or contraindication to SC-005 or excipient contained in the drug formulation.
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Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
SC-005SC-005SC-005 intravenous (IV) (various doses and dose regimens)
Primary Outcome Measures
NameTimeMethod
Number of Participants with Dose-limiting Toxicities (DLTs)Minimum 21 days

DLTs graded according to the National Cancer Institute's Common Terminology Criteria for Adverse Events (NCI CTCAE) version 4.03.

Secondary Outcome Measures
NameTimeMethod
Area Under the Plasma Concentration-time Curve (AUC)Up to approximately 9 weeks

Area under the plasma concentration-time curve (AUC) of SC-005.

Clinical benefit rate (CBR)Up to approximately 4 years

CBR is defined as the proportion of participants with an objective response or stable disease (CR+PR +SD).

Observed Plasma Concentrations at TroughUp to approximately 9 weeks

Observed plasma concentrations at trough of SC-005.

Duration of Clinical Benefit (DOCB)Up to approximately 4 years

DOCB is defined as the time from the participant's initial observation of clinical benefit (CR or PR or stable disease \[SD\]) to PD or death due to any cause, whichever occurs first.

Time of Cmax (Tmax)Up to approximately 9 weeks

Time of Cmax (Tmax) of SC-005.

Progression Free Survival (PFS)Up to approximately 4 years

PFS time is defined as the time from the participant's first dose of study drug (Day 1) to either the participant's disease progression or death due to any cause.

QTcF Change from BaselineUp to approximately 9 weeks

QT interval measurement corrected by Fridericia's formula (QTcF)

Maximum plasma concentration observed (Cmax)Up to approximately 9 weeks

Maximum plasma concentration observed (Cmax) of SC-005

Overall Survival (OS)Up to approximately 4 years

OS is defined as the time from the participant's first dose date to death due to any cause.

Objective Response Rate (ORR)Up to approximately 4 yearsUp to approximately 4 years

Objective response rate is defined as the proportion of participants with complete response (CR) or partial response (PR) based on RECIST version 1.1.

Duration of Response (DOR)Up to approximately 4 years

DOR is defined as the time from the participants initial objective response (CR or PR) to disease progression (PD) or death due to any cause, whichever occurs first.

Trial Locations

Locations (8)

Memorial Sloan Kettering /ID# 201016

🇺🇸

New York, New York, United States

University of Chicago /ID# 169231

🇺🇸

Chicago, Illinois, United States

Washington University School /ID# 169177

🇺🇸

Saint Louis, Missouri, United States

Baylor University /ID# 169860

🇺🇸

Houston, Texas, United States

MD Anderson Cancer Center /ID# 169232

🇺🇸

Houston, Texas, United States

Oklahoma University /ID# 200937

🇺🇸

Oklahoma City, Oklahoma, United States

Gabrail Cancer Center Research /ID# 168756

🇺🇸

Canton, Ohio, United States

Tennessee Oncology-Sarah Cannon Research Institute /ID# 169233

🇺🇸

Nashville, Tennessee, United States

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