  The remarkable properties of toroidal metasurfaces, featuring ultrahigh-Q
bound states in the continuum (BIC) resonances and nonradiating anapole modes,
have garnered significant attention. The active manipulation of quasi-BIC
resonance characteristics offers substantial potential for advancing tunable
metasurfaces. Our study explores explicitly the application of vanadium
dioxide, a phase change material widely used in active photonics and
room-temperature bolometric detectors, to control quasi-BIC resonances in
toroidal metasurfaces. The phase change transition of vanadium dioxide occurs
in a narrow temperature range, providing a large variation in material
resistivity. Through heating thin film patches of vanadium dioxide integrated
into a metasurface comprising gold split-ring resonators on a sapphire
substrate, we achieve remarkable control over the amplitude and frequency of
quasi-BIC resonances due to their high sensitivity to losses present in the
system. Breaking the symmetry of meta-atoms reveals enhanced tunability. The
predicted maximum change in the quasi-BIC resonance amplitude reaches 14 dB
with a temperature variation of approximately 10 {\deg}C.
