The phrase "then ongoing" is correct and usable in written English.
It can be used to describe a situation or action that is currently in progress or continuing after a certain point in time.
Example: "The project was approved last month, and the development phase is then ongoing."
Alternatives: "currently in progress" or "still continuing."
Since then, ongoing drone strikes, the killing of two alleged attackers by the C.I.A. contractor Raymond Davis, and the claims of his diplomatic immunity by the United States, have further inflamed public opinion.
His award-winning poem ኣበሳ ኲናት (The Scourge of War) alluded to the then ongoing border dispute with neighbouring Ethiopia, describing the blood shed by two brothers: Where two brothers pass each other Where two brothers meet each other Where two brothers conjoin In the piazza of life and death In the gulf of calamity and cultivation In the valley of fear and peace Something resounded.
Moneyball highlighted a then ongoing re-conception of what metrics and methods teams and organizations use to evaluate players.
ASPs generally charge clients an up-front fee to set up a voice portal and then ongoing hosting and licensing charges.
Thus the committee members were aware of the problem of recurrence most likely by personal experiences from the then ongoing extensive sumatriptan trial programme [2].
If one buys a mutual fund, there is the $10 etrade fee, then ongoing costs of 1-21-2%er year* for the "management" of the fund.
"This disclosure compromised the F.B.I.'s then-ongoing espionage investigation of Bloch," the affidavit states.
It deferred to the then-ongoing congressional debate over the USA Freedom Act, citing legislation as the more appropriate mode of relief.
Originally called the Proton, the BBC Micro got its name after Acorn, then just two years old, won the contract to make the hardware for the BBC's then-ongoing computer literacy project.
Godard brings the filmmaker Roger Leenhardt into the action, as himself but as a witness to the then-ongoing Auschwitz trials in Frankfurt, which become one of the subjects of interview-like discussions.
Working around the clock with FBI agents at his side, Monsegur "provided, in real time, information about then-ongoing computer hacks and vulnerabilities in significant computer systems", prosecutors wrote.
