The assay being referred to in this prompt is known as PUBCHEM_BIOASSAY and is designed to measure the growth inhibition of NCI human tumor cell lines. Specifically, this particular assay measures data for the SK-MEL-28 Melanoma cell line. The class of assay is considered confirmatory, and the assigned target is non-molecular. This assay falls under the confirmatory category and utilizes the SK-MEL-28 cell type, while the assay type description is considered functional. Can the said molecule be deemed as efficient for this particular assay?