Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

Should I pile into Motif Bio plc, up 35% today?

Successful Phase 3 trials at Motif Bio plc (LON: MTFB) could signal good times ahead.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Good news hit the wires this morning from Motif Bio (LSE: MTFB), a clinical-stage biopharmaceutical company aiming to develop novel antibiotics. The market likes it and the shares are around 36% higher as I write.

The excitement surrounds details of a positive topline result from a global Phase 3 clinical trial called REVIVE-2, which is focused on the firm’s investigational drug candidate iclaprim for patients with Acute Bacterial Skin and Skin Structure Infections (ABSSSI). 

A new drug is born

Chief executive Graham Lumsden tells us that today’s positive results mean the company has completed the two required Phase 3 trials in ABSSSI necessary to submit a new drug application to the US Food and Drug Administration (FDA), which Motif Bio plans to do by the end of the first quarter of 2018.

According to medical experts, ABSSSI is a serious infection and every year around 3.6m people in the US are hospitalised with it for several days. The problem with existing treatments is that they tend to be toxic to the kidneys and that’s bad because around 26% of those suffering with ABSSSI also have kidney disease. Happily, during the trial, kidney toxicity was not observed with iclaprim.

The hope now is that Iclaprim may prove to be “an important option for the growing population of patients with ABSSSI and kidney disease who need a safe and effective antibiotic targeting Gram-positive bacteria, including MRSA.” Meanwhile, from an investing point of view, the outcome of the trial means that Iclaprim now has value, which Motif Bio may be able to commercialise down the road.

Will the cash roll in?

Perhaps Iclaprim will go on to become a blockbusting best-seller. If so, it could end up delivering much-needed incoming cash flow to the company’s coffers. We saw with the recent interim results that Motif Bio has no income and spent more than $28m on operations during the first half of the year – early-stage drug development is an expensive activity. Investors are keeping the firm solvent, and a placing in June brought in just under $24m. But even then, the cash sitting on the balance sheet was only around $29m and the cash-burning agenda for operations marches on.

Of course, Motif Bio isn’t the only drug-development company with precarious finances, and we investors have to make judgements in such cases that balance the financial risks of owning the shares against the upside potential in a firm’s story. One consequence of this push-pull scenario in Motif Bio’s case is that the share price seems to fly up and down on news announcements depending on their tone. So, although the long-term story is full of potential, maybe it’s best to buy-in on down days rather than up days like today.  

The news today takes it closer to earning income, but the firm’s market capitalisation running close to £129m strikes me as hefty for a company with everything yet to prove. This stock could be a millionaire-maker or it could, yet, send you to the poorhouse, so I remain cautious.

Kevin Godbold has no position in Motif Bio. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Elevated view over city of London skyline
Investing Articles

FTSE shares: a simple way to build long-term wealth?

Christopher Ruane explains some factors he thinks an investor should consider when trying to build wealth by investing in FTSE…

Read more »

Investing Articles

Will the soaring BP share price surge 88% in 2026?

BP's share price has risen by double-digit percentages in 2025 -- and some analysts think even greater gains could be…

Read more »

Belfast City Sunset with colorful twilight over Lagan Weir Pedestrian and Cycle Bridge spanning over the Lagan River in downtown Belfast
Investing Articles

Here’s what £5,000 put into HSBC shares in January would be worth now!

Would someone who bought HSBC shares back in January now be sitting on a paper profit or loss? Christopher Ruane…

Read more »

Percy Pig Ocado van outside distribution centre
Investing Articles

Down 91%, is there any hope left for Ocado shares?

Down 91% in five years, is the writing on the wall for Ocado shares? Our writer doesn't necessarily think so…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

It’s the most popular UK stock in 2025 but hasn’t grown in 5 years! What’s going on?

Harvey Jones is baffled by the sheer popularity of this UK stock. Its shares have hardly grown in recent years…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Dividend Shares

How much do you need in a FTSE 250 portfolio to target £2,147 in monthly income?

Jon Smith runs through the steps needed to build up a generous dividend portfolio and outlines why the FTSE 250…

Read more »

Tabletop model of a bear sat on desk in front of monitors showing stock charts
Investing Articles

2 stocks I wouldn’t touch with a bargepole today in my ISA and SIPP

The following two stocks have a history of being incredibly popular with retail investors. So why is this writer avoiding…

Read more »

Smart young brown businesswoman working from home on a laptop
Investing Articles

£10,000 to invest? I asked ChatGPT if it would work harder in a Stocks and Shares ISA or SIPP and it said…

Harvey Jones calls on artificial intelligence to exmaine whether it makes more sense to invest for retirement inside a Stocks…

Read more »