🏛️ Verified NIH Record • Updated 2026-02-23

Incomplete Cervical SCI Without Instability (NCT05653206)

IN-TWIN: Traumatic Incomplete Tetraplegia Without Instability: a Prospective Multicenter Feasibility Study of Outcomes and Prognosis

🔵 Active, Not Recruiting Interventional Protocol 📊 Observational Clinical Research Sponsor: AO Foundation, AO Spine

🩺 Plain-English Summary (8th-Grade Level)

A multicenter, international, prospective, observational case series patient cohort with incomplete cervical SCI without instability will be enrolled to obtain information and data that could inform the feasibility of administering a set of additional core and optional outcome assessments in cervical SCI patients to capture the aspects of neurologic impairment. Baseline, intraoperative, and postoperative characteristics, including demographics, injury details, treatment details, neurological assessments, gait and balance assessments and upper extremity assessments, will be recorded for adult patients.

Who can join: Review the eligibility criteria below.

Location: San Francisco General Hospital — San Francisco, California

Age range: 18 Years to 80 Years

🧪 Interventions in This Study

  • Nonsurgical treatment (PROCEDURE)
  • Surgical treatment (PROCEDURE)

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (10 Sites)

  • San Francisco General Hospital — San Francisco, California
  • UMD STC Neurosurgery Clinic — Baltimore, Maryland
  • Medical college of Winsconsine, Neurosurgery — Milwaukee, Wisconsin
  • Instituto de Ortopedia E Traumatologia Do Hospital Das Clinicas Da Universidade de Sao Paulo — São Paulo,
  • St. Michael's Hospital — Toronto,
  • Toronto Western Hospital University Health Network — Toronto,
  • Vancouver Spine Research Program, Blusson Spinal Cord Centre — Vancouver,
  • BG Klinikum Murnau gGmb, BGU Murnau, Trauma Center Murnau — Murnau am Staffelsee,
  • Indian Spinal Injuries Centre — New Delhi,
  • Orthopaedics, Centro Hospitalar Universitário do Porto — Porto,

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗