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Jack Jumper Ant Venom Immunotherapy Long-term Effectiveness Investigation

NCT06935890 · Status: RECRUITING · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-03-31

No results posted yet for this study

Summary

Jack Jumper ant (JJA) venom allergy is a uniquely Australian medical condition. It is the leading cause of venom allergy and affects up to three per cent of the population. 70 percent of people with JJA allergy will have another reaction on a repeat sting and this sensitivity appears to persist for many years.

Venom immunotherapy (VIT) has been shown to be a safe and effective treatment in the prevention of severe systemic allergic reactions (anaphylaxis) to future stings. It is currently offered to patients as standard care in Tasmania, South Australia and Victoria. However, whilst JJA VIT has been used for many years, there is a lack of evidence on the long-term benefit of the treatment and how it impacts patient quality of life.

This trial will offer patients who have completed a JJA VIT program (between 3 and \< 6-years duration) and have been off-treatment for at least 18-months and \< 5 years, to have a supervised JJA sting challenge and blood test to assess their JJA venom tolerance level. It will also ask them to complete a set of questionnaires at different timepoints to obtain a history of their exposure and reactions to JJA stings outside of the hospital setting (field stings), and to measure the impact of the completed VIT and knowledge of their sting challenge outcome on their quality of life and their behaviours around auto-injectors.

These measures will be used to explore the long-term effectiveness of JJA VIT and the impact of a sting challenge post VIT on a patient's quality of life.

Conditions

  • Allergy
  • Immunotherapy
  • Venom Allergy

Interventions

OTHER

Jack Jumper Ant Venom Immunotherapy

Jack Jumper Ant Venom Immunotherapy involves injections, under the skin, of gradually increasing doses of insect venom. The treatment is usually between 3-\<6 years duration. Participants will have completed this treatment at least 18 months prior to their enrolment in this trial.

Sponsors & Collaborators

  • Murdoch Childrens Research Institute

    lead OTHER

Principal Investigators

  • Adriana Le, MBBS FRACP · Royal Hobart Hospital

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-11-25
Primary Completion
2029-10-31
Completion
2029-10-31

Countries

  • Australia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06935890 on ClinicalTrials.gov