There are 22.2 mm cross/interrupter levers available. They come with shims for 23.8 mm. So they'd fit up.
However, I can't imagine how they'd fit ergonomically. Cross/interrupter levers are curved away from the bar, to fit in the top of a drop bar. On a straight or Alba bar, that curve would make them a far reach from anywhere besides a very narrow area, near the clamp.
They'd function fine and safely, but I don't know if you'd consider them an improvement.
Looks like Garth made them work right next to the clamp, with reverse brake levers and thumb shifters.
But it doesn't look like they're accessible in the "low aero position" at the very front of the curves.
(FQA: Albatross bars have 22.2 "MTB/BMX" grip diameter, Albastache bars have 23.8 "road" grip diameter.)
-Tim