When can a hypothesis be elevated to the status of a theory?

A hypothesis can be described as a tentative statement which can be proved either right or wrong through scientific experiments. If a hypothesis is tested again and again and every time the experiments give the same results, then the hypothesis can take the form of a theory. However, a theory is subjected to change if new researches are made which can annul it.  For a theory to be formed, there should be enough explanation behind the phenomenon along with the experiments.