A Phase 1, Dose Escalation Study of MGAH22 in Patients With Refractory HER2 Positive Breast Cancer and Patients With Other HER2 Positive Carcinomas for Whom No Standard Therapy Is Available
An open-label, multi-dose, single-arm, multi-center, Phase 1, dose-escalation study will be
conducted to define the toxicity profile, MTD, PK, immunogenicity, and potential antitumor
activity of MGAH22 in patients with refractory HER2 positive breast cancer and patients with
other carcinomas that overexpress HER2 for whom no standard therapy is available. After an
MTD has been defined, an additional cohort of patients will be treated at the MTD to obtain
further information regarding the safety of the chosen dose, to definitively describe PK,
and to evaluate potential anti-tumor activity of MGAH22.
Patients will be monitored for a minimum of four weeks after administration of the final
dose of MGAH22. The National Cancer Institute's (NCI's) Common Terminology Criteria for
Adverse Events (CTCAE), v.4.0, will be used for grading AEs except as noted within the
protocol. Study assessments will include AE monitoring, ECG monitoring, PK analysis of serum
MGAH22, determination of the serum concentration of soluble MGAH22 and tumor markers, and an
assessment of potential anti-MGAH22 antibody [human anti-chimeric antibody (HACA)] response.
Tumor response assessments using Study Day 43 CT scans will be performed approximately six
weeks after the first MGAH22 dose for each patient. Patients with evidence of disease
regression (partial or complete response by RECIST criteria in patients with measurable
disease or stable measurable or evaluable disease with > 25% decline in relevant tumor
marker) will be allowed to continue therapy at the same dose, or at a reduced dose if
warranted by DLT or significant AE in Cycle 1. Subsequent cycles which will begin on Study
Day 50 will consist of MGAH22 administration on Study Days 1, 8, and 15 of each 28-day
cycle, with tumor evaluation every other cycle. Responding patients may receive continued
antibody therapy until evidence of progression of disease is documented or the patient
experiences DLT.
Interventional
Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Occurrence of Adverse Events and Serious Adverse Events
Note that serious adverse events that are considered study drug related can be reported at any time after Study Day 50 or 28 days after the last infusion.
Study Day 50 or 28 days after last infusion
Yes
Stanford J. Stewart, MD
Study Director
MacroGenics
United States: Food and Drug Administration
CP-MGAH22-01
NCT01148849
July 2010
June 2013
Name | Location |
---|---|
Sarah Cannon Research Institute | Nashville, Tennessee 37203 |
National Cancer Institute | Bethesda, Maryland 20892-1922 |