NorthWest Biotherapeutics Inc (NWBO)

[TZOR]

What do people think is meant by the highlighted item?

Research and Development Expense. Research and development expense was a combined (cash and non-cash) total of $20.0 million for the three months ended March 31, 2014 compared to $11.6 million for the three months ended March 31, 2013. The increase was primarily attributable to the DCVax-Direct manufacturing and product development work and the preparation costs for the launch of two clinical trial programs, one in the US and one in the UK, as well as expansion of the ongoing Phase III trial in the US, and increased manufacturing of DCVax?-L for the Phase III trial.

Do you think they mean to indicate expansion = more people enrolling with the initial population figure maintained?

or

Do you think they mean to indicate expansion = increasing the total amount of enrollment so that they can meet stat sig, as was referenced in the prior webcast?

I sure hope it's option A and not option B. I welcome all sides, as well as recommendation if contacting them for further details would or would not be a waste of time.