I am currently 7 months into my PhD. I did my masters working with gut bacteria and I really enjoy it, but I'm now doing a PhD in a completely different area of research. I am really unhappy with my work and I find it really hard to motivate myself and I am simply not interested in the topic of my research. I have seen another PhD which is advertised at the same university I am currently at and it is working with gut bacteria/microbiome which I have been interested in for years and completed my masters inI I was wondering if anyone knows if it is even possible to apply for another PhD if I quit the one I am already doing? And if there would be any chance of me even getting an interview if they knew I had already quit one?

I have already met the supervisor of the PhD informally and he also assessed my masters project presentation.I was wondering if it would be a good idea to email him mentioning all this and potentially meeting him to have a chat? But I am worried that I may not get a second chance of getting onto a PhD if I have quit one in the past. I imagine it would look really bad to potential supervisors.

Any advice would be massively appreciated!