New drug aimed at easing knee pain fails to finish trial
NCT ID NCT05838742
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested an experimental drug called GSK3858279 in 314 adults with moderate to severe knee osteoarthritis pain. The goal was to find the best dose that reduces pain safely. However, the trial was stopped early, so we have less information than planned.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- GSK3858279
- What this could lead to
- If successful, this could point toward a new non-opioid pain reliever for people with knee osteoarthritis.
- What could go wrong
- The study was terminated early, so results are limited. It is still in Phase 2, meaning it is not yet proven safe or effective.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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314 people
The number who actually took part.
- Started
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Sep 2023
- Finished
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Dec 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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40 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participant must be 40 to 80 years of age inclusive * OA of the index knee as defined by symptomatic for ≥ 6 months with a clinical diagnosis of OA as per American College of Rheumatology (ACR) clinical diagnosis criteria. * Kellgren and Lawrence (KL) score ≥ 2 on X-ray in the index knee * An average of the average daily pain score of ≥4 and less than or equal to (≤) 9 by the 11-point NRS (0-10) * Body mass index (BMI) of \< 40 kilogram per meter square (kg/m\^2) (inclusive). * Capable of giving signed informed consent. Exclusion Criteria: * History or presence of cardiovascular, renal, gastrointestinal, lymphatic disorders which in the opinion of the investigator would interfere with the study procedures and/or assessments. * History or current evidence of any inflammatory arthritis such as rheumatoid arthritis, infective arthritis, Paget's disease, osteonecrosis, osteoporotic fracture, or any other joint disease that in the Investigator's opinion would interfere with the assessment of pain and other symptoms of osteoarthritis. * History of significant trauma or surgery to a knee or hip within the last 6 months. * Current immunodeficiency diseases including but not limited to acquired immunodeficiency disorder or immunoglobulin deficiency. * Current or previous active Mycobacterium tuberculosis * History or evidence of clinically significant multiple or severe drug allergies * History of malignancy within the last 5 years, except for basal cell or squamous epithelial carcinomas of the skin that have been resected with no evidence of metastatic disease for 3 years. * Alanine transaminase (ALT) \>1.5 times upper limit of normal (ULN). * Bilirubin \>1.5 times ULN (isolated bilirubin \>1.5 times ULN is acceptable if bilirubin is fractionated and direct bilirubin \< 35 percent (%) * Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones) * Evidence of renal insufficiency, indicated by estimated creatinine clearance \< 60 milliliter/ minute (mL/min)/1.73 square meter (m\^2) at screening. * Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that, in the opinion of the investigator or medical monitor, contraindicates participation in the study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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GSK Investigational Site
Cerritos, California, 90703, United States
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GSK Investigational Site
Huntington Beach, California, 92647, United States
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GSK Investigational Site
Santa Clara, California, 95054, United States
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GSK Investigational Site
Cooper City, Florida, 33024, United States
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GSK Investigational Site
Cutler Bay, Florida, 33189, United States
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GSK Investigational Site
Miami, Florida, 33173, United States
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GSK Investigational Site
Miami, Florida, 33185, United States
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GSK Investigational Site
Wichita, Kansas, 67207, United States
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GSK Investigational Site
Louisville, Kentucky, 40213, United States
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GSK Investigational Site
New Orleans, Louisiana, 70115, United States
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GSK Investigational Site
Henderson, Nevada, 89052, United States
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GSK Investigational Site
Williamsville, New York, 14221, United States
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GSK Investigational Site
Greensboro, North Carolina, 27410, United States
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GSK Investigational Site
Duncansville, Pennsylvania, 16635, United States
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GSK Investigational Site
Charlottesville, Virginia, 22911, United States
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GSK Investigational Site
Buenos Aires, C1128AAF, Argentina
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GSK Investigational Site
Buenos Aires-San Isidro, 1643, Argentina
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GSK Investigational Site
Ciudad Autonoma Buenos Aires, C1417, Argentina
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GSK Investigational Site
Ciudad AutOnoma de Buenos Aire, 1118, Argentina
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GSK Investigational Site
Ciudad Autonoma de Buenos Aire, C1046AAQ, Argentina
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GSK Investigational Site
Mar del Plata, B7600FYK, Argentina
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GSK Investigational Site
Botany, New South Wales, 2019, Australia
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GSK Investigational Site
Kotara, New South Wales, 2289, Australia
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GSK Investigational Site
Sydney, New South Wales, 2010, Australia
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GSK Investigational Site
Camberwell, Victoria, 3124, Australia
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GSK Investigational Site
Victoria, British Columbia, V8V 4A1, Canada
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GSK Investigational Site
Brampton, Ontario, L6T 0G1, Canada
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GSK Investigational Site
Guelph, Ontario, N1H 1B1, Canada
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GSK Investigational Site
Sarnia, Ontario, N7T 4X3, Canada
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GSK Investigational Site
Toronto, Ontario, M5T 2S8, Canada
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GSK Investigational Site
Toronto, Ontario, M9V 4B4, Canada
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GSK Investigational Site
Winchester, Ontario, K0C 2K0, Canada
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GSK Investigational Site
Joliette, Quebec, J6E 6A9, Canada
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GSK Investigational Site
Sherbrooke, Quebec, J1L 0H8, Canada
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GSK Investigational Site
Trois-Rivières, Quebec, G9A 3X2, Canada
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GSK Investigational Site
Beijing, 100083, China
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GSK Investigational Site
Beijing, 100730, China
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GSK Investigational Site
Changchun, 130021, China
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GSK Investigational Site
Chengdu, 610041, China
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GSK Investigational Site
Guangzhou, 510000, China
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GSK Investigational Site
Hohhot, 010017, China
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GSK Investigational Site
Nanjing, 210009, China
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GSK Investigational Site
Shanghai, 200011, China
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GSK Investigational Site
Shanghai, 200040, China
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GSK Investigational Site
Shanghai, 200065, China
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GSK Investigational Site
Shenyang, 110022, China
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GSK Investigational Site
Shijiazhuang, 050051, China
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GSK Investigational Site
Tianjin, 300192, China
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GSK Investigational Site
Zhuzhou, 412007, China
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GSK Investigational Site
Dax, 40107, France
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GSK Investigational Site
La Roche-sur-Yon, 85925, France
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GSK Investigational Site
La Rochelle, 17019, France
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GSK Investigational Site
Montpellier, 34000, France
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GSK Investigational Site
Paris, 75012, France
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GSK Investigational Site
Berlin, 10117, Germany
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GSK Investigational Site
Hamburg, 20095, Germany
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GSK Investigational Site
Hamburg, 22415, Germany
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GSK Investigational Site
Magdeburg, 39120, Germany
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GSK Investigational Site
Fukuoka, 834-0115, Japan
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GSK Investigational Site
Ibaraki, 300-1234, Japan
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GSK Investigational Site
Ibaraki, 300-1253, Japan
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GSK Investigational Site
Nagano, 390-8601, Japan
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GSK Investigational Site
Nagano, 395-8505, Japan
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GSK Investigational Site
Osaka, 543-0027, Japan
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GSK Investigational Site
Saitama, 330-0074, Japan
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GSK Investigational Site
Shimane, 693-8501, Japan
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GSK Investigational Site
Tokyo, 103-0027, Japan
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GSK Investigational Site
Tokyo, 104-0031, Japan
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GSK Investigational Site
Tokyo, 113-8431, Japan
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GSK Investigational Site
Chihuahua City, 31000, Mexico
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GSK Investigational Site
Guadalajara, 44650, Mexico
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GSK Investigational Site
Mexicali, 21200, Mexico
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GSK Investigational Site
Mérida, CP 97070, Mexico
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GSK Investigational Site
Torreón, 27000, Mexico
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GSK Investigational Site
Cape Town, 7130, South Africa
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GSK Investigational Site
Cape Town, 7405, South Africa
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GSK Investigational Site
Gauteng, 1619, South Africa
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GSK Investigational Site
Johannesburg, 2113, South Africa
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GSK Investigational Site
Stellenbosch, 7600, South Africa
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GSK Investigational Site
Seoul, 03080, South Korea
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GSK Investigational Site
Seoul, 06973, South Korea
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GSK Investigational Site
Seoul, 07441, South Korea
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GSK Investigational Site
A Coruña, 15006, Spain
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GSK Investigational Site
Barcelona, 08430, Spain
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GSK Investigational Site
Barcelona, 08540, Spain
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GSK Investigational Site
Madrid, 28046, Spain
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GSK Investigational Site
Santander, 39008, Spain
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GSK Investigational Site
Santiago de Compostela, 15702, Spain
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GSK Investigational Site
Seville, 41014, Spain
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GSK Investigational Site
Blackpool, FY2 0JH, United Kingdom
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GSK Investigational Site
Cannock, WS11 0BN, United Kingdom
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GSK Investigational Site
London, EN5 3DJ, United Kingdom
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GSK Investigational Site
Manchester, M13 9NQ, United Kingdom
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Other studies related to the condition(s) this trial covers.
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