The material was discovered and synthesized in India at IIT by a Indian person. The largest clinical trial on Vasalgel - also in India.
Media coverage doesn't happen organically. In almost all cases it is a two way street, with networks and personal contacts creating the bridge. The researchers in India and the cultural epicenters of the Western media establishment are about as distant as two nodes can be. Discovery and contact between the two parties is probably very hard.
On the other hand if they tied it to a pre-dominant narrative in Western media about India - increasing sexual freedoms or a pathway to population management - and worked with the non-profit institutions that connect back to the nodes of cultural influence in the Western world, they would probably get a decent of amount of earned media coverage.
Lack of media coverage doesn't mean no one is paying attention.
Of course the criteria are likely to preclude a cancer treatment!