The most groundbreaking biotechnology discoveries in this century have now reached the flashpoint between theoretical discussions and their realization. Billions of dollars have been poured into the research and development phases, with some companies already generating income. More impressively, potential cures for a number of fatal diseases are now in the pipeline. For early investors, this translates to massive earnings in the succeeding years.

Among the widely sought-after cures is for triple-negative breast cancer (TNBC), which is the most aggressive form of the disease. It also has a poorer prognosis compared to other types of breast cancer, so it’s crucial to offer treatments that can not only improve chances of survival but also improve the quality of life of the patients suffering from it.

Here are the three most promising developments in the search for the cure of TNBC.

Eli Lilly (LLY)

It’s always challenging to be a third-to-market treatment especially when you’re trailing a pioneering drug like Pfizer’s (PFE) groundbreaking drug Ibrance and Novartis’ blockbuster drug Kisqali. However, Eli Lilly (LLY) is hoping that its recent data on Verzenio would bolster its hold in the market.

While it remains to be seen if Verzenio can catch up with Ibrance’s success, the Eli Lilly drug has managed to surpass estimates by $19 million during the first quarter of 2019 following an underwhelming fourth quarter in 2018. As for the latest data on Verzenio, the company disclosed that a combination of the drug and hormone therapy improved the median to 46.7 months compared to the 37.3 months for those who solely underwent therapy.

The 9.4 survival advantage indicates a 25% decrease in mortality risk. Apart from that, patients also enjoyed a better quality of life as this combo allowed them to manage for 50 months -- or over four years -- without the need for follow-up chemotherapy. This is a huge advantage since hormone therapy alone only allowed 22 months before the next treatment.

The effects don’t end there though. Eli Lilly has another trick up its sleeve to make sure that it stands out from the drugs targeting similar diseases. According to the company, Verzenio is the only drug that can help patients with tough-to-treat diseases.

That is, the Eli Lilly drug took effect even on patients who were initially resistant to therapy as well as those who quickly relapsed after treatment. This resulted in a decrease in death risk by roughly 31%. While this aspect still requires additional tests, the results showed a promise that not even Pfizer’s Ibrance can deliver.

Merck & Co. (MRK)

Merck & Co. (MRK) has rallied virtually the entire force of its research and development team behind ensuring that Keytruda remains on top -- way ahead of competitors like Bristol Myers Squibb’s (BMY) Opdivo. At the moment, Merck’s moneymaker has approximately 1,050 clinical trials queued to assess the possibilities of this drug further dominating clinical practice.

So as Bristol Myers Squibb attempts to woo investors with the promising results of Opdivo, Merck has been busy adding another notch in its belt with another landmark first for Keytruda. Aside from its current applications, this Merck cash cow is also pegged as a promising treatment for TNBC when combined with therapy.

Based on the data on its breakthrough therapy designation, this indication is likely on the fast track towards an FDA approval soon. To date, Keytruda has more than 20 oncology indications in the United States alone with the giant biopharma receiving the green light to market the drug in China as well.

If things move forward as planned, Keytruda may very well be on its way to topple AbbVie Inc.’s (ABBV) Humira from the top of the list of best-selling drugs worldwide in the next five years. After all, revenues from the drug are expected to hit anywhere between $17 billion and $24 billion in 2024.

G1 Therapeutics (GTHX)

Joining the biopharma giants is newcomer G1 Therapeutics (GTHX). This up-and-coming firm has recently released its clinical data on oral selective estrogen receptor degrader (SERD) for metastatic TNBC. Called G1T48, this new treatment provided promising results when combined with the company’s own breakthrough therapy called trilaciclib.

For comparison, G1 Therapeutics’ combo is said to be more potent than AstraZeneca plc’s (AZN) Faslodex, which is currently the only FDA-approved SERD treatment in the market. Unlike Faslodex though, which requires intramuscular injection, G1 Therapeutics’ drug can be taken orally once a day. Needless to say, this mode of treatment offers an improved patient experience.

With such promising results, G1 Therapeutics plans to roll out new drug application submissions by the fourth quarter of 2019. If things move smoothly, then the treatment plan should be out in the market sometime in the second quarter of 2020.