ID93+GLA-SE  (also known as QTP101) consists of the active pharmaceutical ingredient, a recombinant protein ID93, and an adjuvant, GLA-SE. The ID93 recombinant protein is composed of the four Mtb antigens Rv3619, Rv1813, Rv3620, and Rv2608 linked in tandem. GLA is a molecule similar to synthetic monophosphoryl lipid A (MPL®) as a TLR4 agonist.