Is Acadia Pharmaceuticals Stock Now a Strong Buy?

What happened

Acadia Pharmaceuticals (NASDAQ: ACAD), a company developing novel treatments for disorders of the central nervous system, saw its shares fall by a noteworthy 17.7% last month, according to S&P Global Market Intelligence.

What's going on? The company's fourth-quarter sales of its drug for Parkinson's disease psychosis, Nuplazid, came in slightly below consensus for the three-month period, triggering a mass exodus among shareholders.

So what

Acadia's stock has shed more than a third of its value since Nuplazid's approval by the Food and Drug Administration roughly two years ago. The underlying reason is that early shareholders seemed to believe that Nuplazid would go supernova, from a sales standpoint, right out of the gate.

While the drug is performing admirably, with a projected run rate of between $255 million and $270 million for 2018, these sales forecasts are well below the $3 billion or more that some investors and analysts were touting prior to FDA approval.

Now what

The silver lining is that Nuplazid has been far from the total flop some analysts were predicting early on. In fact, the drug's sales are expected to reach a healthy $443 million in 2019.

The downside, however, is that even this stately annual haul still equates to Acadia's shares trading at a forward price-to-sales ratio in excess of 7. That's among the highest in the biopharmaceutical space -- suggesting that Acadia's stock remains on the expensive side.

When is it time to buy? My view is that Acadia won't be in bargain territory until it either loses another 20% (at a minimum), or the company addresses its long-term financing needs by striking a front-loaded licensing deal for Nuplazid's other potential indications. As things stand now, Acadia will probably have to resort to a massive secondary offering in early 2019 to pay for Nuplazid's other clinical trials.

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George Budwell has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.