Allergy PenicillinPENINCT04513938
Interest of the Second Phase of the Oral Challenge Test in Patients With Suspected Long-standing Penicillin Allergy
An observational study of Allergy Penicillin, run by Fondation Hôpital Saint-Joseph at 1 site in France.
Trial summary
The most common drug allergy reported is penicillin allergy, approximately 10% of the world's population. According to the latest studies, only 1-2% of them have a proven hypersensitivity to penicillins. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Allergy Penicillin
- How many people
- 195 participants
- Where
- 1 siteFrance
- Study dates
- 20 Jul 2020to 9 Jan 2023
- Phase
- Observational
- 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
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: This study will be carried out on the data of patients, having carried out two TPO of amoxicillin or Augmentin between December 2017 and December 2018 in HDJ or during an allergology consultation within the Paris Saint-Joseph hospital.
Who may be able to join
- Patient aged ≥ 18 years
- Patient with a history of drug allergy and eviction for more than 12 months of penicillins A: mainly amoxicillin and amoxicillin + clavulanic acid
- Patients who had two amoxicillin or Augmentin Oral Challenge Test between December 2017 and December 2018 in allergology department of the Paris Saint-Joseph hospital
- French-speaking patient
Who cannot join
- Patient with uncontrolled asthma
- Patient with an ongoing infection
- Patient with positive skin tests for penicillin before the first TPO
- Patient under guardianship or curatorship
- Patient deprived of liberty
- Patient objecting to participation in the study
Trial locations and contacts
1 site in 1 country.
About this study
The most common drug allergy reported is penicillin allergy, approximately 10% of the world's population. According to the latest studies, only 1-2% of them have a proven hypersensitivity to penicillins. Being wrongly labeled "allergic" leads to a loss of chance for patients to be treated with a molecule of less efficacy than penicillins, an increase in bacterial resistance by broadening the spectrum of action of the molecules prescribed as an alternative and ultimately a additional financial cost. There are several forms of hypersensitivity: the two most classic: immediate hypersensitivity (type I according to Gell and Combs) with a reaction within an hour of taking and non-immediate hypersensitivity with a reaction occurring several days later (type IV according to Gell and Combs). A large majority of patients report a history of allergy in childhood that is poorly described and most often absent from health records. In most cases, this may be a viral rash concomitant with a febrile episode mistakenly mistaken for an allergic skin reaction. Patients are then tested for several decades, in adulthood, after their initial reaction. This latency of time involves a risk of negativation of the allergic tests and it is not excluded that the skin tests or drug reintroductions re cause sensitization to the antibiotic tested and that ultimately the patient reacts when taking the future drug. In fact, it is recommended to optimally explore patients approximately 6 months after an allergic reaction (except for severe drug eruptions).
The exploration of drug hypersensitivity to penicillins therefore involves a strict questioning of the circumstances of the so-called allergic reaction allowing the reaction to be classified as immediate or delayed, then skin tests (prick test, IDR and Patch test according to the immediate profile or delayed) and finally the hospital provocation test. While provocation tests are carried out conventionally most often within one day, it has been shown that some patients react several days after taking penicillin repeatedly: 6.1% have a reaction in their protocol of taking for 5 days at home in the context of a delayed allergy.
Read more
In the allergology service at hôpital Paris Saint-Joseph, the protocol corresponds to 2 successive reintroductions.
This study is to evaluate the protocol for reintroducing Amoxicillin or Augmentin carried out over two stages: a first with 100 mg (i.e. 1 / 10th of a dose) then a second with a dose of 1200 mg 1 month later. It would be a question of seeing if with the second reintroduction, one could not catch up with allergic people who would have presented a false negative during the first reintroduction because of explorations too far away from their initial reaction.
- Conditions
- Allergy Penicillin
What is being measured
The primary outcome is the main question the study is designed to answer.
Evaluation of the second oral challenge test
This outcome corresponds to the percentage of patients diagnosed with allergies during the second Oral Challenge Test versus all patients with a negative first Oral Challenge Test.
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Aug 2020
- Study start20 Jul 2020
- Primary completion20 Aug 2020
- Study completion9 Jan 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (7)Papers the sponsor has linked to this study.
- Other trials for Allergy PenicillinStudies 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
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 195 participants (actual)
Sponsor and investigators
- Lead sponsor
- Fondation Hôpital Saint-Joseph
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- GEST Noemie, MD, Principal investigator, Fondation Hôpital Saint-Joseph
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04513938
- Sponsor's protocol ID
- PENI
- Acronym
- PENI
- Status last verified
- Apr 2023
- First submitted
- 12 Aug 2020
- Last updated
- 27 Apr 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Solensky R, Earl HS, Gruchalla RS. Lack of penicillin resensitization in patients with a history of penicillin allergy after receiving repeated penicillin courses. Arch Intern Med. 2002 Apr 8;162(7):822-6. doi: 10.1001/archinte.162.7.822.
PubMed 11926858Marwood J, Aguirrebarrena G, Kerr S, Welch SA, Rimmer J. De-labelling self-reported penicillin allergy within the emergency department through the use of skin tests and oral drug provocation testing. Emerg Med Australas. 2017 Oct;29(5):509-515. doi: 10.1111/1742-6723.12774. Epub 2017 Apr 5.
PubMed 28378949Shenoy ES, Macy E, Rowe T, Blumenthal KG. Evaluation and Management of Penicillin Allergy: A Review. JAMA. 2019 Jan 15;321(2):188-199. doi: 10.1001/jama.2018.19283.
PubMed 30644987de Haan P, Bruynzeel DP, van Ketel WG. Onset of penicillin rashes: relation between type of penicillin administered and type of immune reactivity. Allergy. 1986 Jan;41(1):75-8. doi: 10.1111/j.1398-9995.1986.tb00279.x.
PubMed 2938516Blanca M, Romano A, Torres MJ, Fernandez J, Mayorga C, Rodriguez J, Demoly P, Bousquet PJ, Merk HF, Sanz ML, Ott H, Atanaskovic-Markovic M. Update on the evaluation of hypersensitivity reactions to betalactams. Allergy. 2009 Feb;64(2):183-93. doi: 10.1111/j.1398-9995.2008.01916.x.
PubMed 19133923Hjortlund J, Mortz CG, Skov PS, Bindslev-Jensen C. Diagnosis of penicillin allergy revisited: the value of case history, skin testing, specific IgE and prolonged challenge. Allergy. 2013 Aug;68(8):1057-64. doi: 10.1111/all.12195. Epub 2013 Jul 29.
PubMed 23889703Devillers L, Sicsic J, Delbarre A, Le Bel J, Ferrat E, Saint Lary O. General Practitioner trainers prescribe fewer antibiotics in primary care: Evidence from France. PLoS One. 2018 Jan 25;13(1):e0190522. doi: 10.1371/journal.pone.0190522. eCollection 2018.
PubMed 29370178
Study at a glance
From the registry record, last updated by the sponsor on 27 Apr 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Interest of the Second Phase of the Oral Challenge Test in Patients With Suspected Long-standing Penicillin Allergy
- ClinicalTrials.gov ID
- NCT04513938
- Acronym / sponsor ID
- PENI / PENI
- Conditions
- Allergy Penicillin
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 195 participants (actual)
- Lead sponsor
- Fondation Hôpital Saint-JosephUniversity, hospital or other
- Study start
- 20 Jul 2020 (actual)
- Primary completion
- 20 Aug 2020 (actual)
- Study completion
- 9 Jan 2023 (actual)
- First posted
- 14 Aug 2020 (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 most common drug allergy reported is penicillin allergy, approximately 10% of the world's population. According to the latest studies, only 1-2% of them have a proven hypersensitivity to penicillins. Being wrongly labeled "allergic" leads to a loss of chance for patients to be treated with a molecule of less efficacy than penicillins, an increase in bacterial resistance by broadening the spectrum of action of the molecules prescribed as an alternative and ultimately a additional financial cost. There are several forms of hypersensitivity: the two most classic: immediate hypersensitivity (type I according to Gell and Combs) with a reaction within an hour of taking and non-immediate hypersensitivity with a reaction occurring several days later (type IV according to Gell and Combs). A large majority of patients report a history of allergy in childhood that is poorly described and most often absent from health records. In most cases, this may be a viral rash concomitant with a febrile episode mistakenly mistaken for an allergic skin reaction. Patients are then tested for several decades, in adulthood, after their initial reaction. This latency of time involves a risk of negativation of the allergic tests and it is not excluded that the skin tests or drug reintroductions re cause sensitization to the antibiotic tested and that ultimately the patient reacts when taking the future drug. In fact, it is recommended to optimally explore patients approximately 6 months after an allergic reaction (except for severe drug eruptions).
The exploration of drug hypersensitivity to penicillins therefore involves a strict questioning of the circumstances of the so-called allergic reaction allowing the reaction to be classified as immediate or delayed, then skin tests (prick test, IDR and Patch test according to the immediate profile or delayed) and finally the hospital provocation test. While provocation tests are carried out conventionally most often within one day, it has been shown that some patients react several days after taking penicillin repeatedly: 6.1% have a reaction in their protocol of taking for 5 days at home in the context of a delayed allergy.
In the allergology service at hôpital Paris Saint-Joseph, the protocol corresponds to 2 successive reintroductions.
This study is to evaluate the protocol for reintroducing Amoxicillin or Augmentin carried out over two stages: a first with 100 mg (i.e. 1 / 10th of a dose) then a second with a dose of 1200 mg 1 month later. It would be a question of seeing if with the second reintroduction, one could not catch up with allergic people who would have presented a false negative during the first reintroduction because of explorations too far away from their initial reaction.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- This study will be carried out on the data of patients, having carried out two TPO of amoxicillin or Augmentin between December 2017 and December 2018 in HDJ or during an allergology consultation within the Paris Saint-Joseph hospital.
Key inclusion criteria (4 listed)
- Patient aged ≥ 18 years
- Patient with a history of drug allergy and eviction for more than 12 months of penicillins A: mainly amoxicillin and amoxicillin + clavulanic acid
- Patients who had two amoxicillin or Augmentin Oral Challenge Test between December 2017 and December 2018 in allergology department of the Paris Saint-Joseph hospital
- French-speaking patient
Key exclusion criteria (6 listed)
- Patient with uncontrolled asthma
- Patient with an ongoing infection
- Patient with positive skin tests for penicillin before the first TPO
- Patient under guardianship or curatorship
- Patient deprived of liberty
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Evaluation of the second oral challenge test
Time frame: Day 1
This outcome corresponds to the percentage of patients diagnosed with allergies during the second Oral Challenge Test versus all patients with a negative first Oral Challenge Test.
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 27 Apr 2023.
- Results publication: PubMed 11926858Solensky R, Earl HS, Gruchalla RS. Lack of penicillin resensitization in patients with a history of penicillin allergy after receiving repeated penicillin courses. Arch Intern Med. 2002 Apr 8;162(7):822-6. doi: 10.1001/archinte.162.7.822.
- Results publication: PubMed 28378949Marwood J, Aguirrebarrena G, Kerr S, Welch SA, Rimmer J. De-labelling self-reported penicillin allergy within the emergency department through the use of skin tests and oral drug provocation testing. Emerg Med Australas. 2017 Oct;29(5):509-515. doi: 10.1111/1742-6723.12774. Epub 2017 Apr 5.
- Results publication: PubMed 30644987Shenoy ES, Macy E, Rowe T, Blumenthal KG. Evaluation and Management of Penicillin Allergy: A Review. JAMA. 2019 Jan 15;321(2):188-199. doi: 10.1001/jama.2018.19283.
- Results publication: PubMed 2938516de Haan P, Bruynzeel DP, van Ketel WG. Onset of penicillin rashes: relation between type of penicillin administered and type of immune reactivity. Allergy. 1986 Jan;41(1):75-8. doi: 10.1111/j.1398-9995.1986.tb00279.x.
- Results publication: PubMed 19133923Blanca M, Romano A, Torres MJ, Fernandez J, Mayorga C, Rodriguez J, Demoly P, Bousquet PJ, Merk HF, Sanz ML, Ott H, Atanaskovic-Markovic M. Update on the evaluation of hypersensitivity reactions to betalactams. Allergy. 2009 Feb;64(2):183-93. doi: 10.1111/j.1398-9995.2008.01916.x.
- Results publication: PubMed 23889703Hjortlund J, Mortz CG, Skov PS, Bindslev-Jensen C. Diagnosis of penicillin allergy revisited: the value of case history, skin testing, specific IgE and prolonged challenge. Allergy. 2013 Aug;68(8):1057-64. doi: 10.1111/all.12195. Epub 2013 Jul 29.
- Results publication: PubMed 29370178Devillers L, Sicsic J, Delbarre A, Le Bel J, Ferrat E, Saint Lary O. General Practitioner trainers prescribe fewer antibiotics in primary care: Evidence from France. PLoS One. 2018 Jan 25;13(1):e0190522. doi: 10.1371/journal.pone.0190522. eCollection 2018.
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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.
GEST Noemie, MD principal investigator
Fondation Hôpital Saint-Joseph
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Allergy Penicillin, run by Fondation Hôpital Saint-Joseph at 1 site in France.
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 6 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 27 Apr 2023. 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 France. 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.
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?
Evaluation of the second oral challenge test (time frame: Day 1). 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 NCT04513938, which also lists 7 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 27 Apr 2023.