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A double blind randomised placebo controlled study to evaluate the efficacy of Enzyme Potentiated Desensitisation (EPD) in seasonal rhinitis

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN60825437
Enrollment
240
Registered
2004-01-23
Start date
2000-05-14
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Seasonal rhinitis Ear, Nose and Throat Seasonal rhinitis

Interventions

Patients randomised to receive two injections out of hay fever season, either EPD or placebo.

Sponsors

NHS R&D Regional Programme Register - Department of Health (UK)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. To be recruited from GP lists aged 18 - 64 years 2. Either sex 3. History of seasonal allergic rhinitis extending mid-May to end-July 4. Positive skin prick test to mixed grass pollens

Exclusion criteria

Exclusion criteria: 1. Symptoms of sufficient severity to require regular treatment outside usual grass-pollinating season 2. History of predominant seasonal problem not corresponding with usual grass-pollinating season 3. Rhinitis complicated by nasal infection, rhino-sinusitis, nasal polyps, septal deviation, gross turbinate hypertrophy or intranasal mass 4. History of anaphylaxis or laryngeal oedema 5. Undergoing nasal surgery within 2 months 6. Receiving specific immunotherapy (high dose method) within preceeding 12 months

Design outcomes

Primary

MeasureTime frame
Measured during 12 week hay fever season: number of problem free days and post-treatment symptom scores.

Secondary

MeasureTime frame
No secondary outcome measures

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Apr 6, 2026