A Phase 2 Study of MCLA-128 combinations in metastatic breast cancer
Research type
Research Study
Full title
Phase 2 study of MCLA-128-based combinations in metastatic breast cancer (MBC): MCLA-128/trastuzumab/chemotherapy in HER2-positive MBC and MCLA-128/endocrine therapy in estrogen receptor positive and low HER2 expression MBC
IRAS ID
243893
Sponsor organisation
Merus N.V
Eudract number
2017-002821-39
Clinicaltrials.gov Identifier
Duration of Study in the UK
1 years, 9 months, 31 days
Research summary
A Phase 2, open-label, multicenter international study will be performed to evaluate the efficacy of MCLA-128-based combinations. Three combination treatments will be evaluated, two in Cohort 1 and one in Cohort 2.
MCLA-128 is given in combinations in two metastatic breast cancer (MBC) populations, HER2-positive/amplified (Cohort 1) and Estrogen Receptor-positive/low HER2 expression (Cohort2).
Two combinations treatments will be evaluated in Cohort 1, the doublet and triplet. Initially MCLA-128 is given in combination with trastuzumab in the doublet. After the safety of the doublet has been assessed in 4-6 patients, MCLA-128 is given in combination with trastuzumab and vinorelbine in the triplet, in parallel to the efficacy expansion of the doublet.
The doublet and triplet combinations are both evaluated in two steps with an initial safety run-in followed by a cohort efficacy expansion. In total up to 40 patients evaluable for efficacy are included in both the doublet and triplet.
In Cohort 2 MCLA-128 is administered in combination with the same previous endocrine therapy on which progressive disease is radiologically documented. A total of up to 40 patients evaluable for efficacy are included in the Cohort 2.
REC name
London - London Bridge Research Ethics Committee
REC reference
18/LO/0905
Date of REC Opinion
14 Aug 2018
REC opinion
Further Information Favourable Opinion