Aptinyx has reported positive top-line data from a Phase II clinical trial that studied NYX-2925 for the treatment of patients suffering from fibromyalgia.

Patients treated with the investigational drug experienced statistically significant reductions in brain activity biomarkers related to central pain processing, the primary endpoint of the trial.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

NYX-2925 also led to statistically significant and clinically meaningful improvements on secondary patient-reported endpoints, including pain scores, the Revised Fibromyalgia Impact Questionnaire (FIQR), and additional fibromyalgia symptom scales.

It was observed that the brain activity biomarkers and improvements in patient-reported pain were correlated.

The single-blind, placebo-controlled, sequential Phase II trial evaluated the efficacy and safety of daily doses of NYX-2925, an NMDA receptor modulator, in 23 female patients with a confirmed diagnosis of fibromyalgia.

Across all study participants, NYX-2925 was well-tolerated without any serious adverse events.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

Aptinyx president and CEO Norbert Riedel said: “The statistically significant effects on both pain-related brain activity and patient-reported clinical measures elegantly demonstrate that NYX-2925 is acting in the brain to alter pain processing, leading to pain alleviation.

“The results of this study reinforce what we observed in patients with advanced painful diabetic peripheral neuropathy in our recent Phase II DPN study, in which NYX-2925 greatly alleviated the centralised pain that is predominant in these patients.”

Based on the data, the company plans to commence enrolment in a 12-week, randomised, placebo-controlled trial in fibromyalgia patients.

The new trial is expected to be initiated in the second half of this year and will measure patient-reported outcomes as the primary endpoint.

Clinical Trials Arena Excellence Awards - Nominations Closed

Nominations are now closed for the Clinical Trials Arena Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Recognised with 2025 Excellence Awards for Research and Development and Marketing , Novotech converted FDA/EMA fast track designations into faster HDV trial timelines while translating complex HBV science into sponsor ready insights. Discover how this dual strength in execution and communication is reshaping liver disease clinical development.

Discover the Impact