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Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Date data sharing statement initially provided
Type of registration
Retrospectively registered

Titles & IDs
Public title
The effect of Palmitoylethanolamide (PEA) supplementation on the symptoms of allergic rhinitis - A double-blind placebo controlled trial.
Scientific title
The effect of Palmitoylethanolamide (PEA) supplementation on the symptoms of allergic rhinitis - A double-blind placebo controlled trial.
Secondary ID [1] 299338 0
Nil known
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Allergic rhinitis 314484 0
Condition category
Condition code
Inflammatory and Immune System 312817 312817 0 0

Study type
Description of intervention(s) / exposure
The intervention is Palmitoylethanolamide (PEA).

Each dose will contain 350 mg of PEA with a dispersion technology LipiSperseā„¢.

Each product will be consumed as per the following: Two capsules containing a total 350 mg of PEA with LipiSperseā„¢ and maltodextrin taken daily in the morning for 2 weeks.

Adherence will be monitored by product return at the completion of participation.
Intervention code [1] 315607 0
Treatment: Other
Comparator / control treatment
The placebo product will be maltodextrin encapsulated in an opaque capsule. It will appear identical to the test products. It will be administered as two capsules containing maltodextrin taken daily in the morning.
Control group

Primary outcome [1] 321455 0
Change in allergy symptoms - Reflective total nasal symptom score 12 hour (TOTAL rTNSS), consisting of nasal congestion, sneezing, itchy nose, and runny nose.
Timepoint [1] 321455 0
Baseline, Treatment weeks 1-3 twice daily (am & pm), Week 3
Secondary outcome [1] 375009 0
Reflective individual nasal symptom scores (Individual rTNSS)
Timepoint [1] 375009 0
Baseline, Treatment weeks 1-3 twice daily (am & pm), Week 3
Secondary outcome [2] 375010 0
Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) overall score
Timepoint [2] 375010 0
Baseline & Week 3
Secondary outcome [3] 375011 0
Change in biochemistry markers from baseline as assessed by serum assay - cytokines, hs-CRP, FBC, histamine, E/LFT
Timepoint [3] 375011 0
Baseline & Week 3
Secondary outcome [4] 375012 0
Onset of action (when did symptoms start to improve) by analysis of reflective total nasal symptom score 12 hour (TOTAL rTNSS).
Timepoint [4] 375012 0
Baseline, Treatment weeks 1-3 twice daily (am & pm), Week 3

Key inclusion criteria
Male and females over 18 years old
Reporting seasonal allergic rhinitis
Generally healthy
Able to provide informed consent
Females using a prescribed form of birth control birth control, abstinent or post-menopausal
Agree not to change current diet/exercise or not to use other supplements/products for allergy
relief other than the test product during study period.
A score of 3 or more on at least 4 of the 7 baseline days for the 24 hour score on the rTNSS #

# Participants will undertake 7 days of rTNSS and continue to take supplement once they fulfil the
rTNSS score requirement.
Minimum age
18 Years
Maximum age
No limit
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
Unstable or serious illness (e.g. MS, kidney, liver, GIT, heart conditions, diabetes, thyroid
gland function Malignancy) including mental/mood disorders (e.g. depression and bipolar)*
Malignancy or treatment for malignancy within the previous 2 years
Receiving/prescribed coumandin (Warfarin), heparin, daltaparin, enoxaparin or other
anticoagulation therapy
Active smokers, nicotine, alcohol, drug abuse
Chronic past and/or current alcohol use (consumption of more than 14 standard alcoholic drinks per week)
Allergic to any of the ingredients in active or placebo formula
Pregnant or lactating woman §
Any condition which in the opinion of the investigator makes the participant unsuitable for

* An unstable illness is any illness that is currently not being treated with a stable dose of medication
or is fluctuating in severity. A serious illness is a condition that carries a risk of mortality, negatively
impacts quality of life and daily function and/or is burdensome in symptoms and/or treatments.
§ Participants who have any reason to feel there is any possibility they are pregnant will be offered a
pregnancy test to undertake before continuing.

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Other design features
Phase 3
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)

Funding & Sponsors
Funding source category [1] 303855 0
Commercial sector/Industry
Name [1] 303855 0
Gencor Pacific
Address [1] 303855 0
Unit 3, 1/F, Office Building Block 2,
96 Siena Avenue, Discovery Bay
North, Lantau Island, N.T., Hong Kong
Country [1] 303855 0
Primary sponsor type
Commercial sector/Industry
RDC Global Pty Ltd
3B/76 Doggett Street
Newstead QLD 4006
Secondary sponsor category [1] 303986 0
Commercial sector/Industry
Name [1] 303986 0
Pharmako Biotechnologies Pty Ltd,
Address [1] 303986 0
Campbell Ave Cromer, NSW
Country [1] 303986 0

Ethics approval
Ethics application status
Ethics committee name [1] 304367 0
Bellberry Human Research Ethics Committee
Ethics committee address [1] 304367 0
129 Glen Osmond Road Eastwood South Australia 5063
Ethics committee country [1] 304367 0
Date submitted for ethics approval [1] 304367 0
Approval date [1] 304367 0
Ethics approval number [1] 304367 0

Brief summary
The aim of this study is to assess the effect of orally-dosed palmitoylethanolamide (PEA) on allergy symptoms in otherwise healthy young males and females aged over 18 years compared to a placebo. This is a double-blind, randomised, clinical trial with a 2-week treatment duration with 2 arms.

It is hypothesised that PEA supplementation over a period of 2 weeks will reduce the severity of allergy symptoms compared to the placebo.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 96706 0
Dr David Briskey
Address 96706 0
RDC Global Pty Ltd 3B/76 Doggett Street Newstead, QLD, 4006
Country 96706 0
Phone 96706 0
+61 421 784 077
Fax 96706 0
Email 96706 0
Contact person for public queries
Name 96707 0
Ms Amanda Rao
Address 96707 0
RDC Global Pty Ltd 3B/76 Doggett Street Newstead, QLD, 4006
Country 96707 0
Phone 96707 0
+61 414 488 559
Fax 96707 0
Email 96707 0
Contact person for scientific queries
Name 96708 0
Ms Amanda Rao
Address 96708 0
RDC Global Pty Ltd 3B/76 Doggett Street Newstead, QLD, 4006
Country 96708 0
Phone 96708 0
+61 414 488 559
Fax 96708 0
Email 96708 0

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No/undecided IPD sharing reason/comment
What supporting documents are/will be available?
Ethical approval
How or where can supporting documents be obtained?
Type [1] 4978 0
Ethical approval
Citation [1] 4978 0
Link [1] 4978 0
Email [1] 4978 0
Other [1] 4978 0
Summary results
No Results