This article (interview with George Church) originally appeared in Endpoints. An excerpt is included below, and the complete story can be found here. The interview with George Church at Endpoints is the source of the next three paragraphs in italics, which are statements from George Church.
George Church describes the roadmap for to human aging reversal treatments
We will see the first aging reversal test in dog trials in the next year or two. If that works, human trials are another two years away, and eight years before they're done. Once you get a few going and succeeding it's a positive feedback loop.
His company Rejuvenate Bio is actually working on the dog trial now.