NCT03025594

Brief Summary

The aim of this study is to demostrate the eficcacy in pain control management after total knee arthroplasty of Gonyautoxin. Local administration during surgery of Gonyautoxin before wound closure can achieved better pain control and lower morphin use during hospital stay compared to local administration of chirocaine, ketorolac and epinephrine

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
64

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Jan 2017

Shorter than P25 for phase_3

Geographic Reach
1 country

2 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2017

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

January 17, 2017

Completed
2 days until next milestone

First Posted

Study publicly available on registry

January 19, 2017

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2017

Completed
Last Updated

January 24, 2017

Status Verified

January 1, 2017

Enrollment Period

7 months

First QC Date

January 17, 2017

Last Update Submit

January 23, 2017

Conditions

Keywords

Paralytic sellfish toxinsGonyautoxinPost surgery pain managementtotal knee arthroplasty

Outcome Measures

Primary Outcomes (2)

  • morphine consume

    total consumption of morphine at 60 hours after total knee arthroplaty

    60hrs post surgery

  • range of motion 1

    Range of motion of the knee that underwent arthroplasty after 12 hours of surgery

    12hours post surgery

Secondary Outcomes (8)

  • early morphine consume

    1 day after surgery

  • range of motion 2

    36 hours after surgery

  • range of motion 3

    60 hours after surgery

  • time of up and go test 1

    1 day after surgery

  • time of up and go test 2

    2 days after surgery

  • +3 more secondary outcomes

Study Arms (2)

Gonyautoxin

EXPERIMENTAL

Gonyautoxin 40mcg

Drug: Gonyautoxins

Control

ACTIVE COMPARATOR

Mix of chirocaine 0,2%, ketorolac and epinephrine..

Drug: Chirocaine ketorolac epinephrine

Interventions

Periarticular infiltration of 40mcg of Gonyautoxin diluted in 30cc of Sodium Chloride 0.9%, with pH 6.2 and isosmotic. This solution will be administer targeting posterior capsule, both retinaculum, collateral ligaments, quadriceps and patelar tendon and subcutaneous tissue just before wound closure of total knee arhroplasty

Gonyautoxin

Periarticular infiltration of 150ml of Chirocaine 2%, 60mg of ketorolac and 0.75mg of epinephrine. This solution will be administer targeting posterior capsule, both retinaculum, collateral ligaments, quadriceps and patelar tendon and subcutaneous tissue jbefore wound closure of total knee arhroplasty.

Control

Eligibility Criteria

AgeUp to 80 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who required total knee arthroplasty due to knee osteoarthritis ( Kellgren and Lawrence score of 2 or more), with no response to conservative management.
  • Without known allergies to the drugs used in the study
  • Anesthetic risk: ASA Score 1,2,3.

You may not qualify if:

  • Obesity, defined as body Mass index over 35
  • Previous Knee surgery
  • Mellitus diabetes
  • Organic brain damage
  • Rheumatic Arthritis
  • Coagulation deficit
  • Liver disease
  • Chronic obstructive pulmonary disease
  • Chronic consumption of opiods
  • Refusal to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Hospital San Jose

Santiago, Santiago Metropolitan, 8380419, Chile

NOT YET RECRUITING

hospital Clinico Universidad de Chile

Santiago, Santiago Metropolitan, 8380456, Chile

RECRUITING

Related Publications (15)

  • Manriquez V, Castro Caperan D, Guzman R, Naser M, Iglesia V, Lagos N. First evidence of neosaxitoxin as a long-acting pain blocker in bladder pain syndrome. Int Urogynecol J. 2015 Jun;26(6):853-8. doi: 10.1007/s00192-014-2608-2. Epub 2015 Jan 9.

    PMID: 25571865BACKGROUND
  • Rodriguez-Navarro AJ, Lagos M, Figueroa C, Garcia C, Recabal P, Silva P, Iglesias V, Lagos N. Potentiation of local anesthetic activity of neosaxitoxin with bupivacaine or epinephrine: development of a long-acting pain blocker. Neurotox Res. 2009 Nov;16(4):408-15. doi: 10.1007/s12640-009-9092-3. Epub 2009 Jul 28.

    PMID: 19636660BACKGROUND
  • Rodriguez-Navarro AJ, Lagos N, Lagos M, Braghetto I, Csendes A, Hamilton J, Figueroa C, Truan D, Garcia C, Rojas A, Iglesias V, Brunet L, Alvarez F. Neosaxitoxin as a local anesthetic: preliminary observations from a first human trial. Anesthesiology. 2007 Feb;106(2):339-45. doi: 10.1097/00000542-200702000-00023.

    PMID: 17264729BACKGROUND
  • Garrido R, Lagos N, Lattes K, Abedrapo M, Bocic G, Cuneo A, Chiong H, Jensen C, Azolas R, Henriquez A, Garcia C. Gonyautoxin: new treatment for healing acute and chronic anal fissures. Dis Colon Rectum. 2005 Feb;48(2):335-40; discussion 340-3. doi: 10.1007/s10350-004-0893-4.

    PMID: 15812585BACKGROUND
  • Garrido R, Lagos N, Lattes K, Azolas CG, Bocic G, Cuneo A, Chiong H, Jensen C, Henriquez AI, Fernandez C. The gonyautoxin 2/3 epimers reduces anal tone when injected in the anal sphincter of healthy adults. Biol Res. 2004;37(3):395-403. doi: 10.4067/s0716-97602004000300005.

    PMID: 15515965BACKGROUND
  • Garcia C, del Carmen Bravo M, Lagos M, Lagos N. Paralytic shellfish poisoning: post-mortem analysis of tissue and body fluid samples from human victims in the Patagonia fjords. Toxicon. 2004 Feb;43(2):149-58. doi: 10.1016/j.toxicon.2003.11.018.

    PMID: 15019474BACKGROUND
  • Hinzpeter J, Barrientos C, Zamorano A, Martinez A, Palet M, Wulf R, Barahona M, Sepulveda JM, Guerra M, Bustamante T, Del Campo M, Tapia E, Lagos N. Gonyautoxins: First evidence in pain management in total knee arthroplasty. Toxicon. 2016 Sep 1;119:180-5. doi: 10.1016/j.toxicon.2016.06.010. Epub 2016 Jun 15.

  • Fan L, Yu X, Zan P, Liu J, Ji T, Li G. Comparison of Local Infiltration Analgesia With Femoral Nerve Block for Total Knee Arthroplasty: A Prospective, Randomized Clinical Trial. J Arthroplasty. 2016 Jun;31(6):1361-1365. doi: 10.1016/j.arth.2015.12.028. Epub 2015 Dec 20.

  • Chaumeron A, Audy D, Drolet P, Lavigne M, Vendittoli PA. Periarticular injection in knee arthroplasty improves quadriceps function. Clin Orthop Relat Res. 2013 Jul;471(7):2284-95. doi: 10.1007/s11999-013-2928-4. Epub 2013 Mar 21.

  • Andersen LO, Kehlet H. Analgesic efficacy of local infiltration analgesia in hip and knee arthroplasty: a systematic review. Br J Anaesth. 2014 Sep;113(3):360-74. doi: 10.1093/bja/aeu155. Epub 2014 Jun 17.

  • Albrecht E, Guyen O, Jacot-Guillarmod A, Kirkham KR. The analgesic efficacy of local infiltration analgesia vs femoral nerve block after total knee arthroplasty: a systematic review and meta-analysis. Br J Anaesth. 2016 May;116(5):597-609. doi: 10.1093/bja/aew099.

  • Toftdahl K, Nikolajsen L, Haraldsted V, Madsen F, Tonnesen EK, Soballe K. Comparison of peri- and intraarticular analgesia with femoral nerve block after total knee arthroplasty: a randomized clinical trial. Acta Orthop. 2007 Apr;78(2):172-9. doi: 10.1080/17453670710013645.

  • Moghtadaei M, Farahini H, Faiz SH, Mokarami F, Safari S. Pain Management for Total Knee Arthroplasty: Single-Injection Femoral Nerve Block versus Local Infiltration Analgesia. Iran Red Crescent Med J. 2014 Jan;16(1):e13247. doi: 10.5812/ircmj.13247. Epub 2014 Jan 5.

  • Affas F, Nygards EB, Stiller CO, Wretenberg P, Olofsson C. Pain control after total knee arthroplasty: a randomized trial comparing local infiltration anesthesia and continuous femoral block. Acta Orthop. 2011 Aug;82(4):441-7. doi: 10.3109/17453674.2011.581264. Epub 2011 May 11.

  • Ng FY, Chiu KY, Yan CH, Ng KF. Continuous femoral nerve block versus patient-controlled analgesia following total knee arthroplasty. J Orthop Surg (Hong Kong). 2012 Apr;20(1):23-6. doi: 10.1177/230949901202000105.

MeSH Terms

Conditions

Agnosia

Interventions

gonyautoxins

Condition Hierarchy (Ancestors)

Perceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Hinzpeter R Jaime, MD

    orthopaedic surgeon

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Barahona A Maximiliano, MD MBiostat

CONTACT

Barrientos N Cristian, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
MD, MBiostat

Study Record Dates

First Submitted

January 17, 2017

First Posted

January 19, 2017

Study Start

January 1, 2017

Primary Completion

August 1, 2017

Study Completion

August 1, 2017

Last Updated

January 24, 2017

Record last verified: 2017-01

Data Sharing

IPD Sharing
Will share

First, a formal letter must be send to the Ethical Committee of Hospital Clinico Universidad de Chile. If the committee gives its consent, the principal investigator will send IPD to whom request it.

Locations