Table of Contents
- Clinical trials overview
- Diabetic peripheral neuropathic pain study
- Knee osteoarthritis pain study
- Study design and main outcomes
- Who participated
Clinical trials overview
Two Phase 2 clinical trials studied Gsk3858279 in adults with pain conditions.[1][2] Both studies were interventional, which means the researchers gave a study treatment and compared it with placebo, a treatment with no active drug.[1][2]
One trial was NEPTUNE-17, and the other was MARS-17.[1][2] Both trials are listed as completed.[1][2]
Diabetic peripheral neuropathic pain study
The NEPTUNE-17 study, NCT05838755, tested Gsk3858279 in people with diabetic peripheral neuropathic pain (DPNP), which is nerve pain linked to diabetes.[1] The study aimed to see whether Gsk3858279 could improve pain compared with placebo.[1]
This study enrolled 240 participants and used a 400 mg subcutaneous injection of Gsk3858279, compared with sterile 0.9% sodium chloride as placebo.[1] The source data does not give more details about the participant rules beyond the condition studied and adult population.[1]
Knee osteoarthritis pain study
The MARS-17 study, NCT05838742, tested Gsk3858279 in adults with knee osteoarthritis pain.[2] Osteoarthritis is a joint disease where the cushioning in the joint wears down, which can cause pain and stiffness.[2]
This dose-finding study enrolled 420 participants and also used a 400 mg subcutaneous injection of Gsk3858279, with sterile 0.9% sodium chloride as placebo.[2] The goal was to see whether Gsk3858279 could reduce knee pain better than placebo.[2]
Study design and main outcomes
Both trials looked at efficacy, which means how well the treatment works, and safety, which means how well it is tolerated in the study setting.[1][2] The main outcome in each study was the change from baseline in weekly average daily pain intensity at Week 12.[1][2]
Pain was measured with the Numeric Rating Scale (NRS), a number-based pain score used in clinical research.[1][2] “Baseline” means the starting pain level before treatment, so the studies compared pain after treatment with the starting point.[1][2]
Who participated
The trials focused on adults with either diabetic peripheral neuropathic pain or knee osteoarthritis pain.[1][2] The source data does not list extra details such as age limits, previous treatments, or other entry rules.[1][2]



