The phrase "approved to date" is correct and usable in written English.
It can be used to indicate that something has been approved up until the present time or up to a specific point in time.
Example: "The project has received all necessary approvals to date, allowing us to move forward with the next phase."
Alternatives: "approved so far" or "approved up to now".
No small molecule therapies against BoNT intoxication have been approved to date.
Two inhibitors targeting viral neuraminidase have been approved to date (oseltamivir, zanamivir).
However, despite enormous efforts and expense, no disease-modifying therapy for PD has been approved to date.
Indeed, the only malaria vaccine approved to date RTS,S/A0112, is based on the CSP TSR domain.
Despite this high unmet clinical need, only two anti-fibrotic drugs, Pirfenidone/Esbriet® and Nintedanib/Ofev® have been approved to date.
Twenty-nine states, including the main industrial countries, subscribed to an international convention that was the most minutely detailed and balanced multilateral trade agreement approved to date.
Although a wealth of innovation and inventiveness was invested in the research and many medical applications were tested in vitro and in laboratory animals, no product or procedure using sol gel systems has been medically approved to this date.
Before the 2001 season, the Milwaukee Brewers signed Hammonds to a three-year, $21.75 million contract, the largest contract the organization had approved to that date.
Though originally envisaged for 2011, an earlier date was approved "to ensure the maximum participation of citizens in the electoral campaign and to set most convenient time for the voters".
The AIIB approved just $1.13 in loans in its first year of operation and $3.30 billion in its second, for a grand total of exactly $4,426,600,000 in approved lending to date.
"Avastin is not manufactured or approved and to date has not been proven safe for use in the eye," a spokesman for the company said Tuesday.
