MARCH 31, 2015 FINANCIAL STATEMENTS EX 99.1 Interim Financial Statements

Interim Consolidated Financial Statements

Oncolytics Biotech Inc.

March 31, 2015 and 2014

ONCOLYTICS BIOTECH INC.

INTERM CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

See accompanying notes

ONCOLYTICS BIOTECH INC.

INTERIM CONSOLIDATED STATEMENTS OF LOSS AND COMPREHENSIVE LOSS

See accompanying notes

ONCOLYTICS BIOTECH INC.

INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

See accompanying notes

ONCOLYTICS BIOTECH INC.

INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS

See accompanying notes

ONCOLYTICS BIOTECH INC.

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Note 1: Incorporation and Nature of Operations

Oncolytics Biotech Inc. was incorporated on April 2, 1998 under the Business Corporations Act (Alberta) as 779738 Alberta Ltd. On April 8, 1998, we changed our name to Oncolytics Biotech Inc.

Our interim consolidated financial statements for the period ended March 31, 2015, were authorized for issue in accordance with a resolution of the Board of Directors (the "Board") on May 6, 2015. We are a limited company incorporated and domiciled in Canada. Our shares are publicly traded and our registered office is located at 210, 1167 Kensington Crescent NW, Calgary, Alberta, Canada.

We are a development stage biopharmaceutical company that focuses on the discovery and development of pharmaceutical products for the treatment of cancers that have not been successfully treated with conventional therapeutics. Our product being developed may represent a novel treatment for Ras mediated cancers which can be used as an alternative to existing cytotoxic or cytostatic therapies, as an adjuvant therapy to conventional chemotherapy, radiation therapy, or surgical resections, or to treat certain cellular proliferative disorders for which no current therapy exists.

Note 2: Basis of Financial Statement Presentation

Our interim consolidated financial statements include our financial statements and the financial statements of our subsidiaries as at March 31, 2015 and are presented in Canadian dollars, our functional currency.

Our accounts are prepared in accordance with International Financial Reporting Standards ("IFRS") issued by the International Accounting Standards Board ("IASB"). The accounts are prepared on the historical cost basis, except for certain assets and liabilities which are measured at fair value as explained in the notes to these financial statements.

These interim consolidated financial statements have been prepared in compliance with International Accounting Standard 34 Interim Financial Reporting. The notes presented in these interim consolidated financial statements include only significant events and transactions occurring since our last fiscal year end and are not fully inclusive of all matters required to be disclosed in our annual audited consolidated financial statements. Accordingly, these interim consolidated financial statements should be read in conjunction with our most recent annual audited consolidated financial statements, for the year ended December 31, 2014. We have consistently applied the same accounting policies for all periods presented in these interim consolidated financial statements as those used in our audited consolidated financial statements for the year ended December 31, 2014.

Note 3: Cash Equivalents and Short Term Investments

Cash equivalents consist of interest bearing deposits with our bank denominated in Canadian and US dollars totaling $25,166,610 (December 31, 2014 - $7,620,520). The current annual interest rate earned on these deposits is 0.35% (December 31, 2014 - 1.38%).

Short-Term Investments

Short-term investments which consist of guaranteed investment certificates are liquid investments that are readily convertible to known amounts of cash and are subject to an insignificant risk of changes in value. The objectives for holding short-term investments are to invest our excess cash resources in investment vehicles that provide a better rate of return compared to our interest bearing bank account with limited risk to the principal invested. We intend to match the maturities of these short-term investments with the cash requirements of the Company's activities and treat these as held-to-maturity short-term investments.

ONCOLYTICS BIOTECH INC.

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Fair value is determined by using published market prices provided by our investment advisor.

Note 4: Share Capital

Unlimited number of no par value common shares

On October 20, 2014 we announced that we had reached an agreement on amendments to the Share Purchase Agreement. The specific amendments include allowing the Company to sell shares to LPC at the Company's sole option independent of the closing price of the Common Stock, increasing the number of shares that may be sold to LPC at certain price levels and changes to the way the number of Commitment Shares issuable are calculated. In consideration of the amendments

ONCOLYTICS BIOTECH INC.

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

to the Agreement, the Company issued 146,397 shares of Common Stock to LPC. All other terms and conditions of the Agreement remain in force without amendment.

During 2015, under the terms of the Share Purchase Agreement, we issued 2,885,081 common shares (2014 - 7,037,216 common shares) for net proceeds of approximately US$1.6 million (2014 - US$7.1 million). As well in 2015, we issued 35,081 commitment shares (2014 - 536,254 commitment shares) with a fair value of US$20,307 (2014 - US$654,267. The commitment shares have been recorded as additional share issue costs. As at March 31, 2015, there was US$17.1 million still available for sale under the terms of the Share Purchase Agreement.

Note 5: Share Based Payments

We have issued stock options to acquire common stock through our stock option plan of which the following are outstanding at March 31:

The following table summarizes information about the stock options outstanding and exercisable at March 31, 2015:

Non-exercisable options vest annually over periods ranging from one to three years or upon satisfaction of certain performance conditions. We have reserved 7,382,208 common shares for issuance relating to outstanding stock options.

ONCOLYTICS BIOTECH INC.

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Compensation expense related to previously granted options to employees and directors was $114,970 for the period ended March 31, 2015 (2014 - $304,597).

The estimated fair value of stock options issued during the period was determined using the Black Scholes Option Pricing Model using the following weighted average assumptions and fair value of options:

We use historical data to estimate the expected dividend yield and expected volatility of our stock in determining the fair value of the stock options. The risk-free interest rate is based on the Government of Canada marketable bond rate in effect at the time of grant and the expected life of the options represents the estimated length of time the options are expected to remain outstanding.

Note 6: Loss Per Common Share

Loss per common share is calculated using net loss for the period and the weighted average number of common shares outstanding for the period ended March 31, 2015 of 99,557,654 (March 31, 2014 of 85,148,242). The effect of any potential exercise of our stock options and warrants outstanding during the period has been excluded from the calculation of diluted loss per common share, as it would be anti-dilutive.

We are committed to payments totaling $3,910,000 for activities related to our clinical trial, manufacturing and collaboration programs.

We are committed to rental payments (excluding our portion of operating costs and rental taxes) under the terms of our office leases which expire between 2016 and 2017. Annual payments under the terms of this lease are as follows:

Under a clinical trial agreement entered into with the Alberta Cancer Board ("ACB"), we have agreed to repay the amount funded under the agreement together with a royalty, to a combined maximum amount of $400,000 plus an overhead repayment of $100,000, upon sales of a specified product. We agreed to repay the ACB in annual installments in an amount equal to the lesser of: (a) 5% of gross sales of a specified product; or (b) $100,000 per annum.

ONCOLYTICS BIOTECH INC.

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Note 8: Capital Disclosures

Our objective when managing capital is to maintain adequate cash resources to support planned activities which include the clinical trial program, product manufacturing, administrative costs and intellectual property expansion and protection. We include shareholders' equity, cash and cash equivalents and short-term investments in the definition of capital.

We do not have any debt other than trade accounts payable and we have potential contingent obligations relating to the completion of our research and development of REOLYSIN .

In managing our capital, we estimate our future cash requirements by preparing a budget and a multi-year plan annually for review and approval by our Board . The budget establishes the approved activities for the upcoming year and estimates the costs associated with these activities. The multi-year plan estimates future activity along with the potential cash requirements and is based on our assessment of our current clinical trial progress along with the expected results from the coming year's activity. Budget to actual variances are prepared and reviewed by management and are presented quarterly to the Board.

Historically, funding for our plan is primarily managed through the issuance of additional common shares and common share purchase warrants that upon exercise are converted to common shares. Management regularly monitors the capital markets attempting to balance the timing of issuing additional equity with our progress through our clinical trial program, general market conditions, and the availability of capital. There are no assurances that funds will be made available to us when required.

In 2014, we renewed our short form base shelf prospectus (the "Base Shelf") that qualifies for distribution of up to $150,000,000 of common shares, subscription receipts, warrants, or units (the "Securities"). Under our Base Shelf, we may sell Securities to or through underwriters, dealers, placement agents or other intermediaries and also may sell Securities directly to purchasers or through agents, subject to obtaining any applicable exemption from registration requirements. The distribution of Securities may be effected from time to time in one or more transactions at a fixed price or prices, which may be changed, at market prices prevailing at the time of sale, or at prices related to such prevailing market prices to be negotiated with purchasers and as set forth in an accompanying Prospectus Supplement.

Renewing our Base Shelf provides us with additional flexibility when managing our cash resources as, under certain circumstances, it shortens the time period required to close a financing and is expected to increase the number of potential investors that may be prepared to invest in our company. Funds received from a Prospectus Supplement will be used in line with our Board approved budget and multi-year plan. Our renewed Base Shelf expires on September 1, 2016.

Our Base Shelf allowed us to enter into our Share Purchase Agreement and our ATM equity distribution agreement (see Note 4). We use these two equity arrangements to assist us in achieving our capital objective. Each arrangement provides us with the opportunity to regularly raise capital at our sole discretion providing us with the ability to better manage our cash resources.

We are not subject to externally imposed capital requirements and there have been no changes in how we define or manage our capital in 2015.

Note 9: Financial Instruments

Our financial instruments consist of cash and cash equivalents, short-term investments, accounts receivable, and accounts payable. As at March 31, 2015, there are no significant differences between the carrying values of these amounts and their estimated market values.

Credit risk is the risk of financial loss if a counterparty to a financial instrument fails to meet its contractual obligations. We are exposed to credit risk on our cash and cash equivalents and short-term investments in the event of non-performance by counterparties, but we do not anticipate such non-performance. Our maximum exposure to credit risk at the end of the period is the carrying value of our cash and cash equivalents and short-term investments.

We mitigate our exposure to credit risk by maintaining our primary operating and investment bank accounts with Schedule I banks in Canada. For our foreign domiciled bank accounts, we use referrals or recommendations from our Canadian banks to open foreign bank accounts and these accounts are used solely for the purpose of settling accounts payable or payroll.

We also mitigate our exposure to credit risk by restricting our portfolio to investment grade securities with short-term maturities and by monitoring the credit risk and credit standing of counterparties. Currently, 100% of our short-term investments are in guaranteed investment certificates.

Interest rate risk is the risk that future cash flows of a financial instrument will fluctuate because of changes in market interest rates. We are exposed to interest rate risk through our cash and cash equivalents and our portfolio of short-term investments. We mitigate this risk through our investment policy that only allows investment of excess cash resources in investment grade vehicles while matching maturities with our operational requirements.

Fluctuations in market rates of interest do not have a significant impact on our results of operations due to the short term to maturity of the investments held.

Currency risk is the risk that future cash flows of a financial instrument will fluctuate because of changes in foreign exchange rates. We are exposed to currency risk from the purchase of goods and services primarily in the U.S. and the U.K. and to the extent cash is held in foreign currencies. The impact of a $0.01 increase in the value of the U.S. dollar against the Canadian dollar would have decreased our net loss in 2015 by approximately $159,705. The impact of a $0.10 increase in the value of the British pound against the Canadian dollar would have increased our net loss in 2015 by approximately $13,692. The impact of a $0.10 increase in the value of the Euro against the Canadian dollar would have increased our net loss in 2015 by approximately $17,352 .

We mitigate our foreign exchange risk through the purchase of foreign currencies in sufficient amounts to settle our foreign accounts payable.

Balances in foreign currencies at March 31, 2015 are as follows:

Liquidity risk is the risk that we will encounter difficulty in meeting obligations associated with financial liabilities. We manage liquidity risk through the management of our capital structure as outlined in Note 8. Accounts payable are all due within the current operating period.

ONCOLYTICS BIOTECH INC.

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Note 10: Additional Cash Flow Disclosures

Net Change In Non-Cash Working Capital

Other Cash Flow Disclosures

Note 11: Other Expenses and Adjustments

We present our expenses based on the function of each expense and therefore include realized foreign exchange gains and losses, unrealized non-cash foreign exchange gains and losses, and non-cash stock based compensation associated with research and development activity as a component of research and development expenses and amortization of property and equipment and stock based compensation associated with operating activities as a component of operating expenses.

ONCOLYTICS BIOTECH INC.

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Note 12: Related Party Transactions