E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated | |
E.1.1.1 | Medical condition in easily understood language |
Hip surgery anaesthesia and peri-operative hip pain treatment. |
Bedøvelse til hoftekirurgi og peri-operativ behandling af hoftesmerter. |
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E.1.1.2 | Therapeutic area | Analytical, Diagnostic and Therapeutic Techniques and Equipment [E] - Anesthesia and Analgesia [E03] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 18.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10054710 |
E.1.2 | Term | Postoperative hip pain |
E.1.2 | System Organ Class | 100000004863 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 18.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10051060 |
E.1.2 | Term | Hip surgery |
E.1.2 | System Organ Class | 10042613 - Surgical and medical procedures |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The main objective of the trial is to complete a randomized, double blinded, controlled trial with a single injection block of the lower part of the lumbar plexus (L2, L3, L4) and the upper part of the sacral plexus (L4, L5, S1) with regard to proximal analgesia of the femoral nerve, the obturator nerve, the lumbosacral trunk and the S1 spinal nerve with ultrasound/MR image fusion guided Supra Sacral Parallel Shift-technique versus ultrasound guided Supra Sacral Parallel shift-technique by estimating sensory block of the terminal nerves innervation in healthy volunteers. |
Det primære formål med projektet er at gennemføre en randomiseret, dobbeltblindet kontrolleret undersøgelse af blokade med én injektion af den nedre del af plexus lumbalis (L2, L3, L4) og den øvre del af plexus sacralis (L4, L5, S1) med henblik på proksimal analgesi af nervus femoralis, nervus obturatorius, truncus lumbosacralis og spinalnerve S1 med ultralyd/MR-billedfusion vejledt Supra Sacral Parallel Shift-teknik versus ultralydvejledt Supra Sacral Parallel Shift-teknik ved at estimere sensorisk blokade af de terminale nervers innervationsområder i raske, frivillige forsøgspersoner. |
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E.2.2 | Secondary objectives of the trial |
The secondary objective of the trial is to estimate time for preparation of the block, time for and discomfort during the block injection, injection site and depth of block needle, mean arterial blood pressure, sensory block of the terminal nerves innervation, calculate cost-effectiveness, and examine the distribution of local anesthetics surrounding the lumbosacral nerves with MRI for ultrasound/MR image fusion guided Supra Sacral Parallel Shift-technique versus ultrasound guided Supra Sacral Parallel shift-technique in healthy volunteers. |
Det sekundære formål med projektet er at estimere og sammenligne forberedelsestid før blokaden, tid for og ubehag ved blokadeanlæggelsen, indstikssted og dybde af blokadenålen, plasma lidokain, middelarterierlt blodtryk, sensorisk blokade af de nævnte nervers terminale nervers innervationsområder og epidural spredning af lokalanalgetikum efter blokadeanlæggelse, beregne cost-effectiveness samt undersøge udbredelsen af lokalanalgetikum omkring de nævnte lumbosacrale nerver vurderet med MRI for SSPS teknik vejledt af ultralyd/MR billedfusion sammenlignet med SSPS teknik vejledt af ultralyd i raske, frivillige forsøgspersoner. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Age ≥ 18 years • Volunteer who has given their written and oral informed consent to participate in the study after fullly understanding the content and the limitations of the protocol. • Normal healthy person (American Society of Anesthesiology Classification, ASA I) |
• Alder ≥ 18 år • Forsøgspersoner som har givet deres skriftlige og mundtlige informerede samtykke til at deltage i undersøgelsen efter at have forstået protokollens indhold og begrænsninger fuldt ud • Normal rask person (American Society of Anesthesiology Classification, ASA I) |
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E.4 | Principal exclusion criteria |
• Volunteers not able to cooperate for the study • Volunteers not able to understand or speak Danish • Daily use of analgesics • Allergy against the medicines used in the study • Drug abuse - according ti the investigator's estimation • Alcohol consumption larger than the recommendations of the Danish National Board of Health • Contraindication for MRI scanning including pregnancy • Volunteers in who nerve blocks are not possible due to technical reasons • Volunteers who are incompetent, eg. surrogate consent is not accepted |
• Forsøgspersoner som ikke kan samarbejde til undersøgelsen • Forsøgspersoner som ikke forstår og taler dansk • Daglig forbrug af analgetikum • Allergi over for de i undersøgelsen anvendte stoffer • Medicinmisbrug – efter investigators skøn • Større alkoholforbrug end Sundhedsstyrelsens retningslinjer, dvs. > 14 genstande ugentligt for mænd og > 7 genstande ugentligt for kvinder • Kontraindikation mod MRI skanning inklusive graviditet • Forsøgspersoner, hvor det, på grund af tekniske forhold, ikke er muligt at anlægge blokaderne • Inhabile patienter, dvs. at der ikke kan benyttes stedfortrædende samtykke |
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E.5 End points |
E.5.1 | Primary end point(s) |
Success rate (SR) of block of the clinical relevant lumbosacral nerves that innervate the hip joint capsule estimated as significant motor block of the obturator nerve (L2-L3, hip adduction), the femoral nerve (L3-L4, knee extension) and the lumbosacral trunk (L4-L5, hip medial rotation) at the time T = 40 minutes. A motor block is a proxy marker of a sensory block. |
Succesrate (SR) af nerveblokade af de klinisk relevante lumbosacrale nerver, der innerverer hofteledskapslen estimeret som signifikant motorisk blokade af nervus obturatorius (L2-L3, hofteadduktion), nervus femoralis (L3-L4, knæekstension), truncus lumbosacralis (L4-L5, hofte medialrotation) til tiden T = 40 minutter. En motorisk blokade er proksy markør for sensorisk blokade. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Time (T) = 40 minutes after the nerve block. |
Tiden (T) = 40 minutter efter anlæggelse af nerveblokade. |
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E.5.2 | Secondary end point(s) |
• Plasma-lidocaine after the nerve block • Time for preparation measured in seconds from placement of the study participant on the bed until the end of the pre-ultrasoundscanning • Time for placement of the block measured in seconds from the placement of the ultrasound transducer on the skin until the block needle is pulled out after injection of local anesthetics • Injectionsite in the skin in reference to the sagittal midline • Depth of the block needle in reference to the injectionsite • Discomfort during block placement measured with Numeric rating scale (NRS) • Mean arterial pressure after the block • Cost-effectiveness estimeret estimated as extra expense per extra successful nerve block (incremental cost-effetctiveness ratio, ICER) • Sensor block (cold, warm, touch, pain) of the femoral nerve (L2, anteriorly on thigh) and of the cutane femoral lateral nerve (L2, laterally on thigh) after the block • Perineural spread of local anesthetics with contrast estimated with T1- and T2-weighted and DWI MRI scanning after the block for the spinal nerves L2-S1, the femoral nerve, the obturator nerve, the cutane femoral lateral nerve, and the lumbosacral trunk. • Epidural spread of local anesthetics with contrast estimated with T1- and T2-weighted and DWI MRI scanning after the block. |
• Plasma-lidokain efter blokadeanlæggelse • Forberedelsestid (FT) i sekunder (s) fra anbringelse af forsøgspersonen på lejet indtil afslutning af pre-ultralydscanning • Anlæggelsestid (AT) i sekunder (s) fra anbringelse af ultralydtransduceren på huden indtil bloknålen er blevet trukket ud • Indstikssted i huden i forhold til den sagittale midtlinje målt i centimeter (cm) • Dybde af blokadenålen i forhold til indstiksstedet i huden målt i centimeter (cm) • Ubehag ved blokadeanlæggelse (vurderet med Numeric rating scale, NRS) efter hver blokade • Middle arterielt blodtryk efter blokadeanlæggelse • Cost-effectiveness estimeret som inkrementel cost-effectiveness ratio (ICER) estimeret som ekstra udgift per ekstra succesfuld nerveblokade • Sensorisk blokade (kulde, varme, berøring, smerte) af nervus femoralis (L2, midt på lårets forside) og nervus cutaneus femoris lateralis (L2, midt på lateralsiden af låret) efter blokadeanlæggelse • Perineural spredning af lokalanalgetikum med kontrast vurderet med T1-, T2- og DWI-vægtet MRI skanning efter blokadeanlæggelse for spinalnerverne L2-S1, nervus femoralis, nervus obturatorius, nervus cutaneus femoris lateralis og truncus lumbosacralis. • Epidural spredning af lokalanalgetikum med kontrast vurderet med T1- og T2- og DWI-vægtet MRI skanning efter blokadeanlæggelse. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
• Plasma-lidocaine: 0, 5, 10, 20, 40, 60 og 90 minutes after the nerve block • Time for preparation: when the block needle penetrates the skin for the first time • Time for placement of the block: when the block needle is pulled out after injection of local anesthetics • Injectionsite: immediately after the block • Depth of block needle: immediately after the block • Discomfort: immediately after the block • Mean arterial pressure: 5 minutes after the block • Cost-effectiveness: after the trial is finished • Sensor block: 30 minutes after the block • Perineural spread of local anesthetics: 60 minutes after the block • Epidural spread of local anesthetics: 60 minutes after the block. |
• Plasma-lidokain: 0, 5, 10, 20, 40, 60 og 90 minutter efter blokadeanlæggelse • Forberedelsestid (FT) i sekunder (s): når blokadenålen perforerer huden første gang • Anlæggelsestid (AT) i sekunder (s): når nålen er trukket ud efter injektion af lokalbedøvelsesmiddel • Indstikssted: umiddelbart efter blokadeanlæggelsen • Dybde af blokadenålen: umiddelbart efter blokadeanlæggelsen • Ubehag ved blokadeanlæggelse: umiddelbart efter hver blokade • Middle arterielt blodtryk: 5 minutter efter blokadeanlæggelse • Cost-effectiveness: efter forsøget er afsluttet • Sensorisk blokade: 30 efter blokadeanlæggelse • Perineural spredning af lokalanalgetikum: 60 minutter efter blokadeanlæggelse • Epidural spredning af lokalanalgetikum: 60 minutter efter blokadeanlæggelse |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
Cost-effectiveness of the US-guided and the US/MR image fusion guided technique, respectively. |
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | Yes |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
En anden teknik til at placere den samme medicin. |
Another technique to place the same medicinal product. |
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E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 2 |
E.8.9.1 | In the Member State concerned days | 0 |