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Penicillin AllergyPhase 4NCT00363688

Treating Patients With a History of Non-Life Threatening Allergic Reaction to Penicillin With Penicillin

A Phase 4 study testing Penicillin test and challenge in people with Penicillin Allergy, run by Meir Medical Center at 1 site in Israel.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to examine whether oral challenge with penicillin for patients with a known history of non-life threatening allergic reaction to penicillin is well-tolerated irrespective of skin-testing results Read more about this study

Who is it for?
Ages 4 to 90 years
Conditions the study is for
Penicillin Allergy
What is being tested?
Penicillin test and challenge
How many people
Not given
Where
1 siteIsrael
Study dates
Jan 1998to May 2004
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 4 to 90 years
  • All sexes
  • Child, Adult, Older adult

Inclusion Criteria:patients with a history of non-life threatening allergic reaction to penicillin, dating back at least 3 years -

Exclusion Criteria:Patients who had a life-threatening anaphylactic reaction to penicillin consisting of unconsciousness or anaphylaxis requiring life-resuscitation and those who had non-IgE mediated hypersensitivity reactions

-

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • Meir Medical Center

    Kfar Saba, 44281

Other trials in Israel

About this study

Official title: Treating Patients With a History of Non-Life Threatening Allergic Reaction to Penicillin With Penicillin: Is It Safe?

The purpose of this study is to examine whether oral challenge with penicillin for patients with a known history of non-life threatening allergic reaction to penicillin is well-tolerated irrespective of skin-testing results

Read the detailed description

Objective: To examine whether oral challenge with penicillin for patients with a known history of non-life threatening allergic reaction to penicillin is well-tolerated irrespective of skin-testing results long after the event occurred.

Methods: In this prospective, open-label, controlled, multi-clinical trial, 8702 individuals from primary care clinics were screened for penicillin allergy. 169 patients with a history of non-life threatening allergic reaction to penicillin, dating back at least 3 years, were recruited for study. Regardless of the response to penicillin skin testing, patients received the recommended daily dosage of penicillin and amoxicillin on two separate occasions. 2-6 years later a follow-up was conducted to assess the outcomes of further penicillin administration.

Results: 92.9% of the patients had an allergic reaction 6 years or longer before enrollment in the study. Of 272 challenges, 137 were skin-test positive with mild rash in 9 patients (6.6%), and 135 were skin-test negative with similar allergic reaction in 5 (3.7%) (P =.29). At follow-up, 3 of 55 patients (5.5%) who were given a full treatment course of penicillin developed mild skin eruption.

Conclusions: A positive penicillin skin testing of patients with a history of non-life threatening allergic reaction to penicillin occurring 3 years or longer from the event was not associated with a greater prevalence of adverse reactions to oral challenge with penicillin than a negative one. It is of importance to determine whether oral challenge can serve as a diagnostic procedure for this particular group of patients, thereby saving the need for prior penicillin skin testing.

Being tested
Penicillin test and challenge
Keywords
Non life threatening allergic reaction, oral challenge, penicillin, skin testing

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Penicillin test and challengeDrug

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. results of an oral challenge with penicillin (penicillin V) and amoxicillin

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Aug 2006 (estimated)
  2. Study startJan 1998
  3. Study completionMay 2004

Resources

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
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00363688
Sponsor's protocol ID
756497
Status last verified
Dec 1997
First submitted
10 Aug 2006
Last updated
15 Aug 2006
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Penicillin test and challenge in people with Penicillin Allergy, run by Meir Medical Center at 1 site in Israel.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

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: stopped early, as of the sponsor's last update on 15 Aug 2006. 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 Israel. 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 was stopped early. Results are not available in the source record.

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?

results of an oral challenge with penicillin (penicillin V) and amoxicillin. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 15 Aug 2006.

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