Unlike the common type (the white flowered version) this particular type bleeding heart vine is super sensitive and more tend to rot away in comparison to the common type which is more hardier. Hence proper care is required in cultivating this type.
Although the leaves have interesting variegated appearance - they appear to grow very much slower due to the lack of greens on its foliage (lack of photosynthesis) Also it would really won't do well as combo planting set as they will not able to compete with other plants grown together with it.
Hence, it would do good to plant is separately, receiving adequate light and watering and also a good foliar fertilizer weekly application to strengthen for stable plant growth.
I doubt that you can actually consider pruning less this plant succumb to stress - unless this plant had grown to considerably strong vines which may require many years in cultivation. These rarely bloom however it does give balloon-like white calyxes with strong dark red corollas also shows protruding stamens that extend out of the petals.
Other than these specifics, the watering, lighting and potting medium is very much similar like the rest of the other Bleeding Heart Vine Plant.
The Variegated version have this very interesting cream to white coloration on the leaf surface and may at times appears to be unstable where the whole plant may revert back to the origin green and force all the variegation to a single vine where the whole stem will have a total white foliage appearance.
In a worse case scenario - the plant may ditch the white variegation vine and totally revert back to fully green - this will occur once the plant is fully matured and grown in full maturity producing many unruly vines.
Do click on the link below for more detailed information on the other Clerodendrum Plants and Posts:
Different Types of Clerodendrum Plant