Allergy to Neuromuscular Blocking Agents and Pholcodine Exposure
ALPHO
Anaphylaxis to Neuromuscular Blocking Agents and Pholcodine Exposure. Case-control Study
1 other identifier
interventional
1,020
1 country
24
Brief Summary
The main objective of this study is to compare pholcodine exposure in patients having presented with a perianaesthetic anaphylactic reaction to a NMBA (cases) to pholcodine exposure in matched anaesthetised patients with injection of NMBA, who did not present with an anaphylactic reaction (controls). The secondary objectives of the study are:
- To compare anti-pholcodine IgE, anti-ammonium IV IgE and total IgE levels between the case and control groups.
- To study the concordance between exposure to pholcodine in cases and controls, by means of a patient self-questionnaire on the one hand and, on the other hand, by a computerized drug history, supplemented where relevant by the drug master file.
- To study the impact of taking 1, 2 or 3 sources in account for pholcodine exposition.
- To study the association between exposure to pholcodine and the presence/levels of pholcodine-specific IgE, reflecting sensitisation to pholcodine.
- To study NMBA and pholcodine cross-sensitisation by testing skin reactions to pholcodine in case patients allergic to (at least) one NMBA.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jul 2014
Longer than P75 for not_applicable
24 active sites
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
First Submitted
Initial submission to the registry
May 12, 2014
CompletedStudy Start
First participant enrolled
July 1, 2014
CompletedFirst Posted
Study publicly available on registry
September 26, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2020
CompletedDecember 27, 2018
December 1, 2018
6 years
May 12, 2014
December 26, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Exposure to pholcodine
Exposure is measured by autoquestionnaire, patient's pharmaceutical file and drug history by the pharmacist's
within the 12 months before the anesthetic procedure
Secondary Outcomes (5)
Anti-pholcodine IgE, anti-ammonium IV IgE and total IgE levels between the case and control groups.
Between 1 day to 12 weeks after the general anesthetic procedure
Concordance between exposure to pholcodine in cases and controls, by means of a patient self-questionnaire on the one hand and, on the other hand, by a computerized drug history, supplemented where relevant by the drug master file.
within the 12 months preceeding the general anesthesia
Impact of non subjective sources in pholcodine exposure assessment
within the 12 months preceeding general anesthetic procedure
Association between exposure to pholcodine and the presence/levels of pholcodine-specific IgE, reflecting sensitisation to pholcodine.
within the 12 months preceding the general anesthetic procedure
NMBA and pholcodine cross-sensitisation by testing skin reactions to pholcodine in case patients allergic to one NMBA.
6 to 12 weeks after the general anesthetic procedure
Study Arms (2)
cases with NMBA anaphylaxis
EXPERIMENTALPatients who experienced NMBA anaphylaxis during anesthesia
controls
OTHERPatients who underwent anesthesia with NMBA injection but did not experience anaphylaxis
Interventions
Eligibility Criteria
You may qualify if:
- Male or female, age ≥ 2 years old.
- Referred to anaesthesia-allergy consultation within (approximately) 6 to 12 weeks of occurrence of peranaesthetic anaphylactic reaction during anaesthesia with administration of NMBAs (only for case patient).
- Having given his/her consent (or the 2 parents consent for minors).
- Affiliated with a social security scheme or dependent.
- Able to answer a medicinal product intake questionnaire
- In a clinical condition compatible with skin tests (no skin disease or psychiatric illness, etc.) (only for case patient)
- Having stopped any anti-histamine treatment at least 8 days previously (only for case patient).
- With positive skin test for the suspected NMBA (ony for case patient).
- Patient anaesthetised in a control recruitment centre (only for control patients)
- Having undergone anaesthesia with NMBA injection, without onset of peranaesthetic anaphylactic reaction whatever his medical history (only for control patients)
You may not qualify if:
- Patients who have refused, or are unable to give their consent
- Patients who have had negative control skin tests
- Anaphylaxis suspected to be related to other drugs given on induction of anaesthesia, eg. antibiotics
- Having presented with anaphylactic reaction during a previous anaesthesia without NMBA injection
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Central Hospital, Nancy, Francelead
- Zambon SpAcollaborator
- Laboratoires URGOcollaborator
- THE BOOTS COMPANY PLCcollaborator
- Pierre Fabre Medicamentcollaborator
- LABORATOIRE HEPATOUMcollaborator
- Biocodexcollaborator
- Sanoficollaborator
- RECORDATI GROUPcollaborator
- GlaxoSmithKlinecollaborator
- ALLIANCE PHARMACEUTICALS LIMITEDcollaborator
- BELL SONS & COMPANYcollaborator
- PINEWOOD LABORATORIES LIMITEDcollaborator
- THORNTON & ROSS & Ross Ltdcollaborator
- ERNEST JACKSON & Co. Ltdcollaborator
Study Sites (24)
CHU d' ANGERS
Angers, France
CHU de Besançon
Besançon, 25030, France
CHU de Bordeaux
Bordeaux, 33000, France
CHU de Caen
Caen, 14000, France
CHU de Clermont-Ferrand
Clermont-Ferrand, 63003, France
CHU de Dijon
Dijon, 21033, France
CHRU de Lille
Lille, 59037, France
CHU de Limoges
Limoges, 87042, France
AP-HM
Marseille, 13915, France
CHU de MONTPELLIER
Montpellier, 34000, France
CHRU de Nancy
Nancy, 54000, France
CHU de NANTES
Nantes, France
CHU de Nice
Nice, 06000, France
Fondation Hôpital St Joseph
Paris, 75007, France
AP-HP- Hôpital Bichat
Paris, 75877, France
AP-HP Paris TENON
Paris, France
Hospices Civils de Lyon
Pierre-Bénite, 69495, France
CHU de Poitiers
Poitiers, 86000, France
CHU de Reims
Reims, 51100, France
CHU de Rouen
Rouen, 76000, France
CHU de Saint Etienne
Saint-Etienne, 42055, France
CHU de Strasbourg
Strasbourg, 670000, France
CHU de Toulouse
Toulouse, 31059, France
CHU de TOURS
Tours, France
Related Publications (1)
Mertes PM, Petitpain N, Tacquard C, Delpuech M, Baumann C, Malinovsky JM, Longrois D, Gouel-Cheron A, Le Quang D, Demoly P, Gueant JL, Gillet P; ALPHO Study Group. Pholcodine exposure increases the risk of perioperative anaphylaxis to neuromuscular blocking agents: the ALPHO case-control study. Br J Anaesth. 2023 Jul;131(1):150-158. doi: 10.1016/j.bja.2023.02.026. Epub 2023 Mar 24.
PMID: 36967281DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Pierre GILLET, PU-PH MD
Central Hospital, Nancy, France
- STUDY DIRECTOR
Paul-Michel MERTES, PU-PH MD
CHU de Strasbourg
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 12, 2014
First Posted
September 26, 2014
Study Start
July 1, 2014
Primary Completion
July 1, 2020
Study Completion
July 1, 2020
Last Updated
December 27, 2018
Record last verified: 2018-12