Gülmen, together with Semih Özakça, applied to the European Court of Human Rights (ECHR) on 29 June 2017, demanding that they be released due to their health problems as a result of a hunger strike and adding that detention conditions worsened their health.[13] On 2 August 2017, the European Court of Human Rights dismissed the application, which was submitted as a precautionary measure by Gülmen and Özakça's lawyers. The ECHR ruled in its rejection that "in the light of the medical reports and other information submitted to the court, the fact that Özakça and Gülmen were detained at the Sincan State Hospital did not constitute a real and immediate danger to the applicants' life." The court also invited Gülmen and Özakça to end the hunger strike.[14]