This university did not do a phase III trial. They just did a lab study. That's the very beginning of the journey.

You can say something kills cancer cells in a petri dish, but is that a good drug? hydrocholoric acid will also kill cancer cells in a petri dish, but I don't want to swallow it.

A phase III trial is conducted in humans and is a big, big deal. A lot of work has to be done before you even begin a phase IIi trial. You need a lot of successful

Pre-clinical (or laboratory) studies Clinical trials are done only after pre-clinical findings suggest that the new drug or treatment is likely to be safe and will work in people.

https://www.cancer.org/treatment/treatments-and-side-effects/clinical-trials/what-you-need-to-know/phases-of-clinical-trials.html

Pre-clinical studies, also called laboratory studies - tests in a lab or on mice or something like that.

The investigational new drug application Before a clinical trial can be started, the research must be approved. What is the drug, its risks, what is the research expected to do etc.

Phase 0 clinical trials: Exploring if and how a new drug may work.
Low doses in just a few people. This drug is meant to fight tumors....does it actually get to the tumor.

Each of the following involve more and more people and there's a lot more info at the link.

Phase I clinical trials: Is the treatment safe?

Phase II clinical trials: Does the treatment work?

Phase III clinical trials: Is it better than what’s already available?