Klippel-Feil syndrome
MONDO:0001029A congenital, musculoskeletal condition characterized by the fusion of at least two vertebrae of the neck. Common symptoms include a short neck, low hairline at the back of the head, and restricted mobility of the upper spine. This syndrome can cause chronic headaches as well as pain in both the neck and the back.Other features may involve various other body parts or systems. Sometimes, KFS occurs as a feature of another disorder or syndrome, such as Wildervanck syndrome or hemifacial microsomia. In these cases, people have the features of both KFS and the additional disorder. KFS may be caused by mutations in the GDF6 or GDF3 gene and inherited in an autosomal dominant manner; or, it may be caused by mutations in the MEOX1 gene and inherited in an autosomal recessive manner. Treatment is symptomatic and may include medications, surgery, and/or physical therapy.
Also known as: Klippel-Feil Sequence, Klippel Feil syndrome, Klippel-Feil and Turner syndrome, Klippel-Feil deformity, deafness and facial asymmetry, autosomal dominant Klippel-Feil syndrome, cervical vertebral fusion, congenital dystrophia brevicollis, congenital synostosis of cervical vertebrae
43 clinical trials for this condition and its sub-types.
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Broader categories
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Neck implant under review: does it ease pain and improve mobility?
Disease control Not yet recruitingThis study reviews past medical records of 33 adults who had neck surgery with a special implant called ITC CERVICAL. The goal is to see if the device safely reduces neck disability and pain, and helps the spine heal properly. Researchers will look at data from before surgery, ri…
Sponsor: MT Ortho s.r.l. • Aim: Disease control
Last updated Jun 27, 2026 12:24 UTC
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New pill aims to shield stomachs from common painkiller damage
Prevention Not yet recruitingThis study tests whether a new medicine called Fexuprazan (Fexuclue) can prevent stomach ulcers caused by NSAID painkillers like ibuprofen. About 360 adults with joint or muscle pain who need daily NSAIDs will take either Fexuprazan or an older drug (Lansoprazole) for 24 weeks. T…
Phase: PHASE4 • Sponsor: Daewoong Pharmaceutical Co. LTD. • Aim: Prevention
Last updated Jun 27, 2026 12:07 UTC
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Can your own blood and fat heal aching joints? new trial aims to find out
Symptom relief Not yet recruitingThis early-phase trial will test four orthobiologic treatments—PRP, bone marrow concentrate, hyaluronic acid, and nanofat—in 300 adults with various muscle, joint, tendon, or bone conditions. The goal is to see if these natural substances can reduce pain and improve joint functio…
Phase: EARLY_PHASE1 • Sponsor: PROREGEN • Aim: Symptom relief
Last updated Jun 27, 2026 09:08 UTC
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Phone app may boost exercise for aching joints
Symptom relief Not yet recruitingThis study looks at whether a mobile app can help people with common pains (neck, shoulder, back, or knee) do their prescribed home exercises more regularly. About 30 adults will be split into two groups: one using the app and one doing traditional exercises. The goal is to see i…
Phase: NA • Sponsor: National Yang Ming Chiao Tung University • Aim: Symptom relief
Last updated Jun 27, 2026 08:12 UTC
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New urdu tool could help millions with muscle and joint pain
Knowledge-focused Not yet recruitingThis study aims to translate and adapt a widely used questionnaire for musculoskeletal problems into Urdu. Researchers will enroll 110 Urdu-speaking adults, including patients with muscle or joint issues and healthy volunteers. The goal is to create a validated tool to measure sy…
Sponsor: Riphah International University • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:02 UTC
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AI vs. doctor: which note do patients trust more?
Knowledge-focused Not yet recruitingThis study looks at how patients feel when reading their own medical notes. Some will read the original doctor's note, others will read a simpler version written by artificial intelligence. Researchers want to see if the AI summary changes how much patients trust their doctor or …
Phase: NA • Sponsor: University of Texas at Austin • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:36 UTC
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New digital tool aims to speed up return to work for those with muscle pain
Knowledge-focused Not yet recruitingThis study tests a decision support system called SmaRTWork to help people on sick leave due to muscle or back pain return to work. About 298 adults in Norway will either use the system or receive usual care. The main goal is to see if the tool helps them return to work sustainab…
Phase: NA • Sponsor: Norwegian University of Science and Technology • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:11 UTC