EX-12 4 drrx-ex121_37.htm EX-12.1 drrx-ex121_37.htm

Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDEND REQUIREMENTS

The following table sets forth our ratio of earnings to fixed charges and our ratio of earnings to combined fixed charges and preferred dividend requirements for each of the periods indicated (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Year Ended December 31,

 

 

 

Six months
ended
June 30, 2018

 

2017

 

 

2016

 

 

2015

 

 

2014

 

 

2013

 

Earnings:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net loss

$

  (15,308)

 

$

(3,695

)

 

$

(34,509

)

 

$

(22,663

)

 

$

(22,110

)

 

$

(21,452

)

Fixed charges

 

       1,638

 

 

3,167

 

 

 

3,030

 

 

 

2,978

 

 

 

1,858

 

 

 

607

 

Total Earnings

$

   (13,670)

 

$

(528

)

 

$

(31,479

)

 

$

(19,685

)

 

$

(20,252

)

 

$

(20,845

)

Fixed Charges:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interest expense

$

1,267

 

$

2,425

 

 

$

2,288

 

 

$

2,236

 

 

$

1,151

 

 

$

6

 

Portion of rent expense representative of interest

 

371

 

 

742

 

 

 

742

 

 

 

742

 

 

 

707

 

 

 

601

 

Ratio of Earnings to Fixed Charges (1)

 

-

 

 

-

 

 

 

-

 

 

 

-

 

 

 

-

 

 

 

-

 

(1)

 

 

For purposes of computing the ratio of earnings to fixed charges, earnings consist of net loss plus fixed charges. Fixed charges consist of interest expense, amortization of debt expense and discount or premium related to indebtedness, whether expensed or capitalized, and that portion of rental payments under operating leases we believe to be representative of interest.