Vipoglanstat trial reaches recruitment halfway point

Vipoglanstat has reached the halfway point for patient recruitment in a phase 2 endometriosis trial.

Gesynta Pharma said 50 per cent of the target of 190 patients have been randomised in the NOVA trial.

The study is evaluating vipoglanstat, described by the company as a novel, non-hormonal, non-opioid drug candidate for the treatment of endometriosis.

Endometriosis is a chronic inflammatory condition where tissue similar to the lining of the womb grows outside the uterus, often causing severe pain and, in some cases, infertility.

The condition affects more than 10 per cent of women of reproductive age.

Top-line results from the study are expected in 2027.

The NOVA trial is a randomised, double-blind, placebo-controlled phase 2 proof-of-concept study evaluating vipoglanstat in women with endometriosis across Europe.

This means patients are assigned to treatment groups by chance, neither participants nor researchers know who receives the drug or placebo during the study, and the results are intended to show whether the treatment has enough evidence to move into later testing.

The trial is assessing the efficacy and safety of two dose levels of vipoglanstat and will provide information for the design of a subsequent phase 3 programme.

Eva Johnsson, chief medical officer and vice president of clinical development at Gesynta Pharma, said:

“Reaching the halfway point in patient recruitment marks a major milestone for our Phase 2 clinical trial in endometriosis. Achieved well ahead of schedule, the rapid progress reflects strong participation from clinical sites and great interest among eligible participants. This momentum highlights the urgent need for better treatments.

“We are now eager to complete enrolment and proceed to the next phase of evaluation.”

Patric Stenberg, chief executive of Gesynta Pharma, said:

“The NOVA trial is a significant advancement in a field with few ongoing clinical trials, and a key step toward establishing a strong foundation for a future Phase 3 programme for vipoglanstat.

“Given the immense medical need, our focus remains on delivering a treatment that is highly effective, safe, and well-tolerated.”

Vipoglanstat is an orally active drug candidate designed to reduce pain and inflammation by targeting mPGES-1, an enzyme that produces prostaglandin E2, a substance linked to inflammation in endometriotic lesions.

A preclinical proof-of-concept study in an advanced endometriosis model found that vipoglanstat significantly reduced pain-related behaviours and endometriotic lesion burden.

Gesynta said previous clinical studies have supported the drug candidate’s safety, tolerability and pharmacodynamic effects in humans. Pharmacodynamic effects refer to how a drug acts in the body.

NOVA stands for the Non-hormonal Option, a Vipoglanstat Assessment trial.

Endometriosis commonly presents with severe period pain, known as dysmenorrhoea, pain between periods, pain during sexual intercourse, gastrointestinal symptoms and infertility.

Current management is typically limited to painkillers, hormonal therapies and surgery.

Despite its prevalence, Gesynta said endometriosis remains a critically underserved area of women’s health.

The company said the disease is significantly underdiagnosed and undertreated, with few new treatment options available to patients.

Approximately 190 patients aged 18 to 45 will receive vipoglanstat or placebo over four menstrual cycles.

The primary objective is to evaluate the effect of vipoglanstat on endometriosis-related pain during non-menstrual days.

Secondary objectives include assessing the effect on menstrual pain, known as dysmenorrhoea, pain during sexual intercourse, known as dyspareunia, use of opioid rescue medication and quality-of-life measures.

Changes in endometriotic lesions, areas of tissue linked to the condition, will also be explored using MRI scans.

Gesynta Pharma said its research on targeting mPGES-1 began at Karolinska Institutet in Sweden.

The company said a second drug candidate, GS-073, is ready to enter clinical phase 1 for the treatment of chronic inflammatory pain.

Gesynta Pharma’s shareholders include Hadean Ventures, Industrifonden, Innovestor Life Science, Linc, HealthCap, XGen Venture and other specialist investors.