NCT02250729

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

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1,020

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2014

Longer than P75 for not_applicable

Geographic Reach
1 country

24 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

First Submitted

Initial submission to the registry

May 12, 2014

Completed
2 months until next milestone

Study Start

First participant enrolled

July 1, 2014

Completed
3 months until next milestone

First Posted

Study publicly available on registry

September 26, 2014

Completed
5.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2020

Completed
Last Updated

December 27, 2018

Status Verified

December 1, 2018

Enrollment Period

6 years

First QC Date

May 12, 2014

Last Update Submit

December 26, 2018

Conditions

Keywords

anaphylaxispholcodineneuromuscular blocking agents

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

EXPERIMENTAL

Patients who experienced NMBA anaphylaxis during anesthesia

Other: intradermal pholcodine allergy test in casesOther: Blood sampling

controls

OTHER

Patients who underwent anesthesia with NMBA injection but did not experience anaphylaxis

Other: Blood sampling

Interventions

cases with NMBA anaphylaxis
cases with NMBA anaphylaxiscontrols

Eligibility Criteria

Age2 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

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

Study Sites (24)

CHU d' ANGERS

Angers, France

RECRUITING

CHU de Besançon

Besançon, 25030, France

NOT YET RECRUITING

CHU de Bordeaux

Bordeaux, 33000, France

RECRUITING

CHU de Caen

Caen, 14000, France

RECRUITING

CHU de Clermont-Ferrand

Clermont-Ferrand, 63003, France

RECRUITING

CHU de Dijon

Dijon, 21033, France

RECRUITING

CHRU de Lille

Lille, 59037, France

RECRUITING

CHU de Limoges

Limoges, 87042, France

RECRUITING

AP-HM

Marseille, 13915, France

NOT YET RECRUITING

CHU de MONTPELLIER

Montpellier, 34000, France

RECRUITING

CHRU de Nancy

Nancy, 54000, France

RECRUITING

CHU de NANTES

Nantes, France

RECRUITING

CHU de Nice

Nice, 06000, France

RECRUITING

Fondation Hôpital St Joseph

Paris, 75007, France

RECRUITING

AP-HP- Hôpital Bichat

Paris, 75877, France

RECRUITING

AP-HP Paris TENON

Paris, France

RECRUITING

Hospices Civils de Lyon

Pierre-Bénite, 69495, France

RECRUITING

CHU de Poitiers

Poitiers, 86000, France

RECRUITING

CHU de Reims

Reims, 51100, France

RECRUITING

CHU de Rouen

Rouen, 76000, France

RECRUITING

CHU de Saint Etienne

Saint-Etienne, 42055, France

RECRUITING

CHU de Strasbourg

Strasbourg, 670000, France

RECRUITING

CHU de Toulouse

Toulouse, 31059, France

RECRUITING

CHU de TOURS

Tours, France

RECRUITING

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.

MeSH Terms

Conditions

Anaphylaxis

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Hypersensitivity, ImmediateHypersensitivityImmune System Diseases

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Officials

  • Pierre GILLET, PU-PH MD

    Central Hospital, Nancy, France

    PRINCIPAL INVESTIGATOR
  • Paul-Michel MERTES, PU-PH MD

    CHU de Strasbourg

    STUDY DIRECTOR

Central Study Contacts

Pierre Gillet, MD PhD

CONTACT

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

Locations