This paper describes clavulanic acid, as a companion, enhances activity of meropenem. Click here for this paper. John Blanchard's Lab has demonstrated this in M. tuberculosis.
Authors: J Cielecka-Piontek, D Szymanowska-Powalowska, M Paczkowska, P Lysakowski, P Zalewski and P Garbacki.
Here is another paper reporting Meropenem-Clavulanic acid activity against clinical strains (including strains that are resistant to TB drugs). Click here.
Authors: FL Davies , CG Giske, J Bruchfeld, T Schon, P Jureen, K Anjeby.