Other Current Assets and Accrued Income - Summary of Other Current Assets (Details) - CHF (SFr) SFr in Thousands	Jun. 30, 2026	Dec. 31, 2025
Current prepayments and current accrued income including current contract assets [abstract]
Prepaid general and administrative expenses	SFr 2,409	SFr 2,492
Prepaid clinical and technical development expenses	486	1,590
VAT, interest and tax-related receivables	321	801
Total	SFr 3,216	SFr 4,883

The amount recognised as a current asset for expenditures made prior to the period when the economic benefit will be realised.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

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Period Type:	instant