hacked password changed

Is there any way to fix this and regain access?

You will need to get directly into your database and take it back.

Log into your hosts control panel and find the MySQL database administration tools. It’s probably going to be phpMyAdmin. The instructions for resetting the admin password in this article should help. Resetting Your Password It also contains a walk-through on changing it Through phpMyAdmin
There is also a link to a pictorial/tutorial for phpMyAdmin on that same page.
Here’s how to change your password using phpmyadmin.

You may still have some things to do yet. This is a good place to start: FAQ My site was hacked and Hardening WordPress