2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153566We prove that every commutative differential graded algebra whose cohomology is a simply-connected Poincare duality algebra is quasi-isomorphic to one whose underlying algebra is simply-connected and satisfies Poincare duality in the same dimension. This has application in particular to the study of CDGA models of configuration spaces on a closed manifold.14 pages. Final version to be published in Annales Scientifiques ENSAlgebraic Topology55P62; 55M05; 57P10text