Observation of Neuromuscular BlockPhase 4NCT03420937
Deep Neuromuscular Block During General Anaesthesia in Robotic Surgery
A Phase 4 study testing Sugammadex and Neostigmine, Atropin Biotika in people with Observation of Neuromuscular Block and Complication of Ventilation Therapy, run by University Hospital Olomouc at 1 site in Czechia.
Trial summary
The aim of this project is to show, whether the use of the deep neuromuscular block in certain laparoscopic robot-assisted surgery can positively influence main physiological functions compared to the use of standard neuromuscular block. Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Observation of Neuromuscular Block, Complication of Ventilation Therapy, Postoperative Recovery
- What is being tested?
- Sugammadex and Neostigmine, Atropin Biotika
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 138 participants
- Where
- 1 siteCzechia
- Study dates
- Jun 2016to Aug 2017
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age over 18 years
- Informed Consent
- Elective robotic radical prostatectomy
- American Society of Anesthesiologists (ASA) status 1-3
Who cannot join
- Inability to obtain Informed ConsentAge under 18 years
- American Society of Anesthesiologists (ASA) status over 3
- Indication for rapid sequence induction, signs of difficult airway severe neuromuscular, liver or renal disease
- Known allergy to drugs used in the study
- Malignant hyperthermia (medical history)
Trial locations and contacts
1 site in 1 country.
Czechia1 site
Dept. of Anesthesiology and Intensive Care Medicine, University Hospital Olomouc
Olomouc, 77520
About this study
Official title: Deep Neuromuscular Block During General Anaesthesia in Laparoscopic (and Robotic Laparoscopic) Surgery and Its Potential Benefits for Certain Physiological Parameters in Perioperative Period
The aim of this project is to show, whether the use of the deep neuromuscular block in certain laparoscopic robot-assisted surgery can positively influence main physiological functions compared to the use of standard neuromuscular block. Secondary outcome is to find out whether the targeted specific reversal of neuromuscular block by sugammadex improves and fastens the post-operative recovery of the patients.
Read the detailed description
Adequate muscle relaxation during general anaesthesia is crucial for easy, uncomplicated and safe laparoscopic and robot-assisted surgery. Perfect abdominal wall relaxation facilitates surgical working conditions, which makes surgery safer, faster and easier to perform. Besides this indirect advantage, there could be obvious benefit for patients. This is a result of decreased negative pathophysiological consequences of an increased intraabdominal pressure (capnoperitoneum) on important organ systems (cardiovascular, breathing system, kidneys etc.) Complete muscle relaxation during general anaesthesia can be achieved by using higher doses of rocuronium (non-depolarizing aminosteroid muscle relaxant) and special anaesthetic technique called deep neuromuscular block (DNMB). The primary focus of the project is to test the potential advantages of DNMB compared to standard relaxation technique. Safe and efficient use of NMBA is an important precondition in restoring a patient´s full muscle strength at the end of anaesthesia, to prevent effects of residual block. Modern practice of anaesthesia offers an option for complete and immediate rocuronium induced block reversal by using its specific antagonist - sugammadex. Combination of DNMB approach and sugammadex reversal also provide potential benefits for perioperative course and patient recovery after surgery. Secondary objective of the project is to verify this facts.
- Conditions
- Observation of Neuromuscular Block, Complication of Ventilation Therapy, Postoperative Recovery
- Being tested
- Sugammadex, Neostigmine, Atropin Biotika
- Keywords
- deep neuromuscular block, laparoscopic surgery, robotic surgery, lung protective ventilation, respiratory functions, post-operative recovery
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SugammadexDrug
Also called Bridion
Deep neuromuscular block provided by rocuronium to PTC 1-2. Reversal of the block with sugammadex.
Neostigmine, Atropin BiotikaDrug
Also called syntostigmine, atropine
Standard neuromuscular block provided by rocuronium to TOF-count 1-2. Reversal of the block with neostigmine.
| Study group | Role | What they receive |
|---|---|---|
| Deep Neuromuscular Block | Experimental | Administration of rocuronium 0,6 mg/kg iv, top-ups 5-10 mg iv to target value of Post-tetanic Count (PTC) = 1-2; PTC measurement every 4 min.
Intervention: Neuromuscular blockade reversal at the end of anesthesia: sugammadex 2 mg/kg iv (when PTC is 18-20 and TOF-count 0) or sugammadex 4 mg/kg iv (when PTC under 18).
Induction of anesthesia: midazolam 1-2 mg iv, sufentanil 10-30 mcg iv, propofol 1,5-2,5 mg/kg iv Anesthesia: sevoflurane in air to target 1.2-1.5 minimal alveolar concentration (MAC). Rescue medication: sevoflurane, propofol 20-40 mg iv.
Extubation when patient is conscious and attained recovery from neuromuscular blockade to a TOF-ratio of at least 0,9. Receives: Drug: Sugammadex |
| Moderate Neuromuscular Block | Experimental | Administration of rocuronium 0,6 mg/kg iv, top-ups 5-10 mg iv to target value of Train-of-Four (TOF) count = 1-2, TOF-count measurement every 1 min. Intervention: Neuromuscular blockade reversal at the end of anesthesia: neostigmine 0.03 mg/kg iv + atropine 0.5-1.0 mg iv Induction of anesthesia: midazolam 1-2 mg iv, sufentanil 10-30 mcg iv, propofol 1.5-2.5 mg/kg iv Anesthesia: sevoflurane in air to target 1.2-1.5 minimal alveolar concentration (MAC). Rescue medication: sevoflurane, propofol 20-40 mg iv Extubation when patient is conscious and attained the recovery from neuromuscular blockade to a TOF-ratio of at least 0,9. Receives: Drug: Neostigmine, Atropin Biotika |
What is being measured
The primary outcome is the main question the study is designed to answer.
Surgical conditions SRS
Describes the quality of surgical conditions as reported by surgeon
Measured: Perioperative period
Intraabdominal pressure IAP (mmHg)
Pressure in the abdominal cavity during capnoperitoneum
Measured: During surgery
Secondary outcomes (2)
Operating theatre time (min)
Time from induction to anesthesia to the release from operating theatre
Measured: during anesthesia
Post-operative recovery
Physiological functions, level of discomfort, subjective evaluation by the patient
Measured: post-operative period (1 week)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Feb 2018
- Study startJun 2016
- Primary completionJun 2017
- Study completionAug 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (16)Papers the sponsor has linked to this study.
- Other trials for Observation of Neuromuscular BlockStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 138 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital Olomouc
- Sponsor type
- University, hospital or other
- Collaborators
- Palacky University
- Responsible party
- Principal investigator, MUDr. Lenka Doubravska, University Hospital Olomouc
- Investigators
- Karel Axmann, MD, Principal investigator, University Hospital Olomouc
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03420937
- Sponsor's protocol ID
- IGA_LF_2016_021
- Status last verified
- Jan 2018
- First submitted
- 22 May 2016
- Last updated
- 5 Feb 2018
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Publications
Fuchs-Buder T, Claudius C, Skovgaard LT, Eriksson LI, Mirakhur RK, Viby-Mogensen J; 8th International Neuromuscular Meeting. Good clinical research practice in pharmacodynamic studies of neuromuscular blocking agents II: the Stockholm revision. Acta Anaesthesiol Scand. 2007 Aug;51(7):789-808. doi: 10.1111/j.1399-6576.2007.01352.x.
PubMed 17635389Blobner M, Frick CG, Stauble RB, Feussner H, Schaller SJ, Unterbuchner C, Lingg C, Geisler M, Fink H. Neuromuscular blockade improves surgical conditions (NISCO). Surg Endosc. 2015 Mar;29(3):627-36. doi: 10.1007/s00464-014-3711-7. Epub 2014 Aug 15.
PubMed 25125097Van Wijk RM, Watts RW, Ledowski T, Trochsler M, Moran JL, Arenas GW. Deep neuromuscular block reduces intra-abdominal pressure requirements during laparoscopic cholecystectomy: a prospective observational study. Acta Anaesthesiol Scand. 2015 Apr;59(4):434-40. doi: 10.1111/aas.12491. Epub 2015 Feb 13.
PubMed 25684372Madsen MV, Gatke MR, Springborg HH, Rosenberg J, Lund J, Istre O. Optimising abdominal space with deep neuromuscular blockade in gynaecologic laparoscopy--a randomised, blinded crossover study. Acta Anaesthesiol Scand. 2015 Apr;59(4):441-7. doi: 10.1111/aas.12493. Epub 2015 Mar 1.
PubMed 25789421Staehr-Rye AK, Rasmussen LS, Rosenberg J, Juul P, Lindekaer AL, Riber C, Gatke MR. Surgical space conditions during low-pressure laparoscopic cholecystectomy with deep versus moderate neuromuscular blockade: a randomized clinical study. Anesth Analg. 2014 Nov;119(5):1084-92. doi: 10.1213/ANE.0000000000000316.
PubMed 24977638Gerges FJ, Kanazi GE, Jabbour-Khoury SI. Anesthesia for laparoscopy: a review. J Clin Anesth. 2006 Feb;18(1):67-78. doi: 10.1016/j.jclinane.2005.01.013.
PubMed 16517337Gainsburg DM. Anesthetic concerns for robotic-assisted laparoscopic radical prostatectomy. Minerva Anestesiol. 2012 May;78(5):596-604. Epub 2012 Mar 13.
PubMed 22415437Carron M. Respiratory benefits of deep neuromuscular block during laparoscopic surgery in a patient with end-stage lung disease. Br J Anaesth. 2015 Jan;114(1):158-9. doi: 10.1093/bja/aeu419. No abstract available.
PubMed 25500396Kilpatrick B, Slinger P. Lung protective strategies in anaesthesia. Br J Anaesth. 2010 Dec;105 Suppl 1:i108-16. doi: 10.1093/bja/aeq299.
PubMed 21148650Futier E, Constantin JM, Jaber S. Protective lung ventilation in operating room: a systematic review. Minerva Anestesiol. 2014 Jun;80(6):726-35. Epub 2013 Nov 13.
PubMed 24226493Murphy GS, Szokol JW, Marymont JH, Greenberg SB, Avram MJ, Vender JS. Residual neuromuscular blockade and critical respiratory events in the postanesthesia care unit. Anesth Analg. 2008 Jul;107(1):130-7. doi: 10.1213/ane.0b013e31816d1268.
PubMed 18635478Blobner M, Eriksson LI, Scholz J, Motsch J, Della Rocca G, Prins ME. Reversal of rocuronium-induced neuromuscular blockade with sugammadex compared with neostigmine during sevoflurane anaesthesia: results of a randomised, controlled trial. Eur J Anaesthesiol. 2010 Oct;27(10):874-81. doi: 10.1097/EJA.0b013e32833d56b7.
PubMed 20683334Rahe-Meyer N, Berger C, Wittmann M, Solomon C, Abels EA, Rietbergen H, Reuter DA. Recovery from prolonged deep rocuronium-induced neuromuscular blockade: A randomized comparison of sugammadex reversal with spontaneous recovery. Anaesthesist. 2015 Jul;64(7):506-12. doi: 10.1007/s00101-015-0048-0. Epub 2015 Jul 1.
PubMed 26126940Kopman AF, Naguib M. Laparoscopic surgery and muscle relaxants: is deep block helpful? Anesth Analg. 2015 Jan;120(1):51-58. doi: 10.1213/ANE.0000000000000471.
PubMed 25625254Carron M, Ori C. Deep Neuromuscular Blockade for Laparoscopy: A Different View. Anesth Analg. 2016 Jan;122(1):289. doi: 10.1213/ANE.0000000000000864. No abstract available.
PubMed 26678476
Study at a glance
From the registry record, last updated by the sponsor on 5 Feb 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Deep Neuromuscular Block During General Anaesthesia in Laparoscopic (and Robotic Laparoscopic) Surgery and Its Potential Benefits for Certain Physiological Parameters in Perioperative Period
- ClinicalTrials.gov ID
- NCT03420937
- Acronym / sponsor ID
- IGA_LF_2016_021
- Conditions
- Observation of Neuromuscular Block, Complication of Ventilation Therapy, Postoperative Recovery
- Keywords
- deep neuromuscular block, laparoscopic surgery, robotic surgery, lung protective ventilation, respiratory functions, post-operative recovery
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 138 participants (actual)
- Lead sponsor
- University Hospital OlomoucUniversity, hospital or other
- Collaborators
- Palacky University
- Study start
- Jun 2016 (actual)
- Primary completion
- Jun 2017 (actual)
- Study completion
- Aug 2017 (actual)
- First posted
- 5 Feb 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this project is to show, whether the use of the deep neuromuscular block in certain laparoscopic robot-assisted surgery can positively influence main physiological functions compared to the use of standard neuromuscular block. Secondary outcome is to find out whether the targeted specific reversal of neuromuscular block by sugammadex improves and fastens the post-operative recovery of the patients.
Detailed description
Adequate muscle relaxation during general anaesthesia is crucial for easy, uncomplicated and safe laparoscopic and robot-assisted surgery. Perfect abdominal wall relaxation facilitates surgical working conditions, which makes surgery safer, faster and easier to perform. Besides this indirect advantage, there could be obvious benefit for patients. This is a result of decreased negative pathophysiological consequences of an increased intraabdominal pressure (capnoperitoneum) on important organ systems (cardiovascular, breathing system, kidneys etc.) Complete muscle relaxation during general anaesthesia can be achieved by using higher doses of rocuronium (non-depolarizing aminosteroid muscle relaxant) and special anaesthetic technique called deep neuromuscular block (DNMB). The primary focus of the project is to test the potential advantages of DNMB compared to standard relaxation technique. Safe and efficient use of NMBA is an important precondition in restoring a patient´s full muscle strength at the end of anaesthesia, to prevent effects of residual block. Modern practice of anaesthesia offers an option for complete and immediate rocuronium induced block reversal by using its specific antagonist - sugammadex. Combination of DNMB approach and sugammadex reversal also provide potential benefits for perioperative course and patient recovery after surgery. Secondary objective of the project is to verify this facts.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Deep Neuromuscular Block | Experimental | Drug: SugammadexAdministration of rocuronium 0,6 mg/kg iv, top-ups 5-10 mg iv to target value of Post-tetanic Count (PTC) = 1-2; PTC measurement every 4 min. Intervention: Neuromuscular blockade reversal at the end of anesthesia: sugammadex 2 mg/kg iv (when PTC is 18-20 and TOF-count 0) or sugammadex 4 mg/kg iv (when PTC under 18). Induction of anesthesia: midazolam 1-2 mg iv, sufentanil 10-30 mcg iv, propofol 1,5-2,5 mg/kg iv Anesthesia: sevoflurane in air to target 1.2-1.5 minimal alveolar concentration (MAC). Rescue medication: sevoflurane, propofol 20-40 mg iv. Extubation when patient is conscious and attained recovery from neuromuscular blockade to a TOF-ratio of at least 0,9. |
| Moderate Neuromuscular Block | Experimental | Drug: Neostigmine, Atropin BiotikaAdministration of rocuronium 0,6 mg/kg iv, top-ups 5-10 mg iv to target value of Train-of-Four (TOF) count = 1-2, TOF-count measurement every 1 min. Intervention: Neuromuscular blockade reversal at the end of anesthesia: neostigmine 0.03 mg/kg iv + atropine 0.5-1.0 mg iv Induction of anesthesia: midazolam 1-2 mg iv, sufentanil 10-30 mcg iv, propofol 1.5-2.5 mg/kg iv Anesthesia: sevoflurane in air to target 1.2-1.5 minimal alveolar concentration (MAC). Rescue medication: sevoflurane, propofol 20-40 mg iv Extubation when patient is conscious and attained the recovery from neuromuscular blockade to a TOF-ratio of at least 0,9. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Age over 18 years
- Informed Consent
- Elective robotic radical prostatectomy
- American Society of Anesthesiologists (ASA) status 1-3
Key exclusion criteria (5 listed)
- Inability to obtain Informed ConsentAge under 18 years
- American Society of Anesthesiologists (ASA) status over 3
- Indication for rapid sequence induction, signs of difficult airway severe neuromuscular, liver or renal disease
- Known allergy to drugs used in the study
- Malignant hyperthermia (medical history)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SugammadexAlso: BridionDeep neuromuscular block provided by rocuronium to PTC 1-2. Reversal of the block with sugammadex. | Drug | Deep Neuromuscular Block |
| Neostigmine, Atropin BiotikaAlso: syntostigmine, atropineStandard neuromuscular block provided by rocuronium to TOF-count 1-2. Reversal of the block with neostigmine. | Drug | Moderate Neuromuscular Block |
Primary outcome
Surgical conditions SRS
Time frame: Perioperative period
Describes the quality of surgical conditions as reported by surgeon
Intraabdominal pressure IAP (mmHg)
Time frame: During surgery
Pressure in the abdominal cavity during capnoperitoneum
2 secondary outcomes
Operating theatre time (min)
Time frame: during anesthesia
Post-operative recovery
Time frame: post-operative period (1 week)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Feb 2018.
- Background: PubMed 17635389Fuchs-Buder T, Claudius C, Skovgaard LT, Eriksson LI, Mirakhur RK, Viby-Mogensen J; 8th International Neuromuscular Meeting. Good clinical research practice in pharmacodynamic studies of neuromuscular blocking agents II: the Stockholm revision. Acta Anaesthesiol Scand. 2007 Aug;51(7):789-808. doi: 10.1111/j.1399-6576.2007.01352.x.
- Background: PubMed 25125097Blobner M, Frick CG, Stauble RB, Feussner H, Schaller SJ, Unterbuchner C, Lingg C, Geisler M, Fink H. Neuromuscular blockade improves surgical conditions (NISCO). Surg Endosc. 2015 Mar;29(3):627-36. doi: 10.1007/s00464-014-3711-7. Epub 2014 Aug 15.
- Background: PubMed 25684372Van Wijk RM, Watts RW, Ledowski T, Trochsler M, Moran JL, Arenas GW. Deep neuromuscular block reduces intra-abdominal pressure requirements during laparoscopic cholecystectomy: a prospective observational study. Acta Anaesthesiol Scand. 2015 Apr;59(4):434-40. doi: 10.1111/aas.12491. Epub 2015 Feb 13.
- Background: PubMed 25789421Madsen MV, Gatke MR, Springborg HH, Rosenberg J, Lund J, Istre O. Optimising abdominal space with deep neuromuscular blockade in gynaecologic laparoscopy--a randomised, blinded crossover study. Acta Anaesthesiol Scand. 2015 Apr;59(4):441-7. doi: 10.1111/aas.12493. Epub 2015 Mar 1.
- Background: PubMed 24977638Staehr-Rye AK, Rasmussen LS, Rosenberg J, Juul P, Lindekaer AL, Riber C, Gatke MR. Surgical space conditions during low-pressure laparoscopic cholecystectomy with deep versus moderate neuromuscular blockade: a randomized clinical study. Anesth Analg. 2014 Nov;119(5):1084-92. doi: 10.1213/ANE.0000000000000316.
- Background: PubMed 16517337Gerges FJ, Kanazi GE, Jabbour-Khoury SI. Anesthesia for laparoscopy: a review. J Clin Anesth. 2006 Feb;18(1):67-78. doi: 10.1016/j.jclinane.2005.01.013.
- Background: PubMed 22415437Gainsburg DM. Anesthetic concerns for robotic-assisted laparoscopic radical prostatectomy. Minerva Anestesiol. 2012 May;78(5):596-604. Epub 2012 Mar 13.
- Background: PubMed 25500396Carron M. Respiratory benefits of deep neuromuscular block during laparoscopic surgery in a patient with end-stage lung disease. Br J Anaesth. 2015 Jan;114(1):158-9. doi: 10.1093/bja/aeu419. No abstract available.
- Background: PubMed 21148650Kilpatrick B, Slinger P. Lung protective strategies in anaesthesia. Br J Anaesth. 2010 Dec;105 Suppl 1:i108-16. doi: 10.1093/bja/aeq299.
- Background: PubMed 24226493Futier E, Constantin JM, Jaber S. Protective lung ventilation in operating room: a systematic review. Minerva Anestesiol. 2014 Jun;80(6):726-35. Epub 2013 Nov 13.
- Background: PubMed 18635478Murphy GS, Szokol JW, Marymont JH, Greenberg SB, Avram MJ, Vender JS. Residual neuromuscular blockade and critical respiratory events in the postanesthesia care unit. Anesth Analg. 2008 Jul;107(1):130-7. doi: 10.1213/ane.0b013e31816d1268.
- Background: PubMed 20683334Blobner M, Eriksson LI, Scholz J, Motsch J, Della Rocca G, Prins ME. Reversal of rocuronium-induced neuromuscular blockade with sugammadex compared with neostigmine during sevoflurane anaesthesia: results of a randomised, controlled trial. Eur J Anaesthesiol. 2010 Oct;27(10):874-81. doi: 10.1097/EJA.0b013e32833d56b7.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Karel Axmann, MD principal investigator
University Hospital Olomouc
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Sugammadex and Neostigmine, Atropin Biotika in people with Observation of Neuromuscular Block and Complication of Ventilation Therapy, run by University Hospital Olomouc at 1 site in Czechia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 5 Feb 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Czechia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Surgical conditions SRS (time frame: Perioperative period). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03420937, which also lists 16 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Feb 2018.