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Recruiting Phase 3 NCT06934278

NCT06934278 Pooled Human Plasma vs Crystalloid in The Management of Children Undergoing Instrumented Spinal Fusion for Scoliosis

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Clinical Trial Summary
NCT ID NCT06934278
Status Recruiting
Phase Phase 3
Sponsor Turku University Hospital
Condition Adolescent Idiopathic Scoliosis (AIS)
Study Type INTERVENTIONAL
Enrollment 194 participants
Start Date 2025-05-02
Primary Completion 2030-12-31

Eligibility & Interventions

Sex All sexes
Min Age 10 Years
Max Age 21 Years
Study Type INTERVENTIONAL
Interventions
Pooled human plasmaPlacebo

Eligibility Fast-Check

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 3 trials are large pivotal studies comparing the treatment to current standard of care or placebo. Your participation directly contributes to the evidence needed for regulatory approval.

This trial targets 194 participants in total. It began in 2025-05-02 with a primary completion date of 2030-12-31.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

OCTAGON trial is a randomized, double-blinded, parallel-group non-inferiority multicenter (Helsinki and Turku University Hospitals, Finland) clinical trial according to CONSORT criteria. 194 adolescents with idiopathic (major curve \> 45 degrees) or neuromuscular scoliosis (major curve \> 50 degrees) are enrolled for the OCTAGON trial comparing pooled human plasma (Octaplas, 10mL/kg, active management) vs. Plasmalyte (10 mL/kg, placebo) before incision as part of the normal intraoperative fluid therapy. Data is collected at baseline and at each follow-up until a minimum of 2-year follow-up. Outcomes Outcomes for the OCTAGON trial include 1) intraoperative blood loss (in mL, primary outcome) and the need for allogenic red blood cell infusion (percentage of patients). Secondary outcomes include health-related quality of life (Scoliosis Research Society 24 outcome questionnaire), postoperative pain (48-hour opioid consumption), operative time (hours), drain output (mL), hidden blood loss (mL), hospital stay, and complications (skin reactions, TRALI, deep surgical site infection, neurologic deficit). Research questions and hypothesis Does prophylactic use of pooled human plasma decrease intraoperative blood loss in adolescents undergoing instrumented spinal fusion for scoliosis? We hypothesize that pooled human plasma will reduce intraoperative and total blood loss by 25% resulting in lower need for blood transfusion and fewer surgical site infections. Objectives To compare the effect of pooled human plasma vs. crystalloid fluids on intraoperative bleeding and total blood loss (drain output and hidden blood loss) in children undergoing posterior spinal fusion for AIS and NMS. Adverse events will be recorded and reported as minor (skin reaction) or major (severe allergic reaction, transfusion related acute lung injury, TRALI, deep surgical site infection, neurologic injury). Ethical aspects The PHP trial has been evaluated via European regulatory authority (EU CT: 2024-514857-31-00) and by Fimea (FIMEA/2024/006588). Informed consent is obtained from the parent(s). Results will be disseminated in high-quality peer-reviewed publications. The individual patient safety and high-quality management of fractures and scoliosis is a priority in this trial. The randomization can be opened at any stage of the treatment process. Based on the clinical decision the randomized treatment can be terminated and treatment provided accord-ing to clinical decision making even if results will be evaluated using the intention to treat princi-ple. Pain management will be prioritized in every clinical scenario and parental presence is always possible.

Eligibility Criteria

Inclusion Criteria: * Written informed consent. * Aged between 10 and 21 years of age * Scoliosis requiring posterior scoliosis surgery using all pedicle screw technique for AIS (\>45-degree major curve) or NMS (\>50-degree major curve) * Normal whole spine MRI except for the spinal deformity (only for patients with adolescent idiopathic scoliosis as patients with neuromuscular scoliosis do not typically undergo MR images as they would need general anaesthesia) Exclusion Criteria: * Immunoglobulin A-deficiency * Need for anteroposterior surgery * Need for three column vertebral resection * Smoking * Diabetes mellitus * Abnormalities in blood coagulation (thromboplastin time below above or below of normal values, 70-130%) * Blood trombosytes less than 150 x E9/l * Body mass index over 40 * Allergy or hypersensitivity to study medications or their ingredients * Pregnancy or breast-feeding, aim of becoming pregnant during the study. * Participation in another study and receipt of any other investigational agent during 2 year period of current investigation * Inability to provide written informed consent * Any significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk by participation in the study, or may influence the result of the study. * A history of drug or alcohol use that, in the opinion of the investigator, would interfere with adherence to study requirements. * Known history of, or documented positive hepatitis B or C or HIV infection Prior or concurrent malignancy * Aspartate transaminase (AST) or alanine transaminase (ALT) ≥ 3 x upper-limit of normal * Creatinine clearance (CrCl) \< 60 ml/min measured by 24-hour urine collection or estimated from the Cockcroft and Gault formula * Clinically significant ECG findings as judged by the investigator * Amiodarone medication * Hyperkalemia * Renal insufficiency * AV-block * Metabolic or respiratory alkalosis * Hypochlorhydria * Hypersensitivity for active component or additives.

Contact & Investigator

Central Contact

Ilkka Helenius, MD, orthopaedic surgeon

✉ ilkka.helenius@helsinki.fi

📞 +358443380034

Principal Investigator

Matti Ahonen, MD, Ass Prof, Ortho surgeon

PRINCIPAL INVESTIGATOR

Helsinki University Central Hospital

Frequently Asked Questions

Who can join the NCT06934278 clinical trial?

This trial is open to participants of all sexes, aged 10 Years or older, up to 21 Years, studying Adolescent Idiopathic Scoliosis (AIS). Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06934278 trial and what does that mean for participants?

Phase 3 trials are large-scale studies comparing the new treatment to existing standards of care or a placebo. They provide the evidence needed for regulatory approval. This trial targets 194 participants.

Is NCT06934278 currently recruiting?

Yes, NCT06934278 is actively recruiting participants. Contact the research team at ilkka.helenius@helsinki.fi for enrollment information.

Where is the NCT06934278 trial being conducted?

This trial is being conducted at Helsinki, Finland, Turku, Finland.

Who is sponsoring the NCT06934278 clinical trial?

NCT06934278 is sponsored by Turku University Hospital. The principal investigator is Matti Ahonen, MD, Ass Prof, Ortho surgeon at Helsinki University Central Hospital. The trial plans to enroll 194 participants.

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