Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Mar. 31, 2019

Stockholders' Equity Note [Abstract]

Schedule of Stock-Based Compensation Expense

Stock-based compensation expense related to Trovagene equity awards have been recognized in operating results as follows:

	Three Months Ended March 31,
	2020		2019
Included in research and development expense	76,868		110,081
Included in selling, general and administrative expense	100,441		89,986
Total stock-based compensation expense	$	177,309	$	200,067

Schedule of Assumptions to Estimate Fair Value of Stock Option Awards

The estimated fair value of stock option awards was determined on the date of grant using the Black-Scholes option valuation model with the following weighted-average assumptions during the following periods indicated:

	Three Months Ended March 31,
	2020		2019
Risk-free interest rate	0.93	%	2.33	%
Dividend yield	0	%	0	%
Expected volatility of Trovagene common stock	102	%	99	%
Expected term	6.0 years		5.1 years

Summary of Stock Option Activity and of Changes in Stock Options Outstanding

A summary of stock option activity and changes in stock options outstanding is presented below:

	Total Options		Weighted-Average Exercise Price Per Share		Intrinsic Value
Balance outstanding, December 31, 2019	1,015,418		$	12.77	$	—
Granted	5,000		$	0.74
Canceled / Forfeited	(44,910	)	$	2.67
Expired	(275	)	$	259.20
Balance outstanding, March 31, 2020	975,233		$	13.10	$	1,350
Exercisable at March 31, 2020	72,725		$	144.72	$	—

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

A summary of the RSU activity is presented below:

	Number of Shares		Weighted-Average Grant Date Fair Value Per Share		Intrinsic Value
Non-vested RSUs outstanding, December 31, 2019	11,301		$	15.38	$	14,013
Vested	(6,810	)	$	13.98	$	9,073
Non-vested RSUs outstanding, March 31, 2020	4,491		$	17.50	$	4,536

Summary of Warrant Activity and Changes in Warrants Outstanding

A summary of warrant activity and changes in warrants outstanding, including both liability and equity classifications is presented below:

	Total Warrants (1)		Weighted-Average Exercise Price Per Share (1)		Weighted-Average Remaining Contractual Term (1)
Balance outstanding, December 31, 2019	10,589,482		$	4.08	3.7 years
Granted	931,967		$	0.95
Exercised	(1,005,072	)	$	1.56
Balance outstanding, March 31, 2020	10,516,377		$	4.04	3.6 years

(1)    Balance outstanding as of March 31, 2020 excludes 131,967 pre-funded warrants to purchase shares of common stock at a nominal exercise price of $0.01 per share. These pre-funded warrants were exercised on April 28, 2020, see Note 11 to the condensed financial statements for further information.