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Consolidated Statements of Operations - GBP (£) £ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Statement [Abstract] |  |  |
Research and development expenses | £ (25,899) | £ (19,728) | £ (16,846)
Administrative expenses | (7,050) | (5,953) | (5,184)
Net foreign exchange (losses) gains | (3,472) | (1,019) | 2,902
Operating loss | (36,421) | (26,700) | (19,128)
Finance income | 246 | 1,049 | 1,065
Loss before tax | (36,175) | (25,651) | (18,063)
Income tax credit | 5,493 | 4,239 | 4,223
Loss for the year attributable to equity holders of the Company | £ (30,682) | £ (21,412) | £ (13,840)
Basic and diluted loss per share | £ (0.81) | £ (0.66) | £ (0.43)

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