Evaluation Of The Diamine Oxidase Supplementation Effect In Patients With Insomnia Symptoms

NCT ID: NCT07027943

Last Updated: 2025-06-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

108 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-03-13

Study Completion Date

2024-12-18

Brief Summary

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Considering the high prevalence of DAO enzyme deficiency in patients referring insomnia symptoms, it would be plausible that the appearance of insomnia symptoms were explained by the DAO enzyme deficiency.

One of the strategies to revert DAO enzyme deficiency would be to supplement patients with DAO enzyme, helping at recovering the normal DAO levels. Therefore, the objective of the present study is to evaluate the effect of DAO enzyme supplementation on the insomnia symptoms characteristics in patients with insomnia symptoms and genetic DAO deficiency as expected from bearing at least one of the 4 above-mentioned SNPs of the AOC1 gene.

Detailed Description

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Conditions

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Insomnia Insomnia Type; Sleep Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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DAO; once per day

Gastro-resistant DAO tablets of porcine kidney protein extract. Posology: 3 tablets per day (total 12.6mg of DAO extract/day); once per day.

Group Type EXPERIMENTAL

DAO supplement

Intervention Type DIETARY_SUPPLEMENT

Gastro-resistant DAO tablets of porcine kidney protein extract. Posology: 3 tablets per day (total 12.6mg of DAO extract/day).

Placebo; once per day

Tablets containing microcrystalline cellulose and hydroxypropyl cellulose, with the same shape, size, and color as the DAO-containing tablets.

Posology: 3 tablets per day, once per day.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Tablets containing microcrystalline cellulose and hydroxypropyl cellulose, with the same shape, size, and color as the DAO-containing tablets. Posology: 3 tablets per day.

DAO; 3 times per day

Gastro-resistant DAO tablets of porcine kidney protein extract. Posology: 3 tablets per day (total 12.6mg of DAO extract/day) in 3 different times per day.

Group Type EXPERIMENTAL

DAO supplement

Intervention Type DIETARY_SUPPLEMENT

Gastro-resistant DAO tablets of porcine kidney protein extract. Posology: 3 tablets per day (total 12.6mg of DAO extract/day).

Placebo, 3 times per day

Tablets containing microcrystalline cellulose and hydroxypropyl cellulose, with the same shape, size, and color as the DAO-containing tablets. Posology: 3 tablets per day in 3 different times per day.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Tablets containing microcrystalline cellulose and hydroxypropyl cellulose, with the same shape, size, and color as the DAO-containing tablets. Posology: 3 tablets per day.

Interventions

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DAO supplement

Gastro-resistant DAO tablets of porcine kidney protein extract. Posology: 3 tablets per day (total 12.6mg of DAO extract/day).

Intervention Type DIETARY_SUPPLEMENT

Placebo

Tablets containing microcrystalline cellulose and hydroxypropyl cellulose, with the same shape, size, and color as the DAO-containing tablets. Posology: 3 tablets per day.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Older than 18 years
* With the ability to understand and sign informed consent reviewed and approved by the Grupo Hospitalario Quironsalud-Catalunya.
* That refer one or more symptoms of insomnia, these being: Difficulty initiating sleep, Difficulty maintaining sleep, Waking up early with inability to go back to sleep.
* Who are carriers, either heterozygous or homozygous, of at least one of the following 4 SNPs associated with a reduction in the enzymatic activity of DAO or a decreased transcriptional activity of it: c.47C\>T (rs10156191), c.995C\>T (rs1049742), c.1990C\>G (rs1049793), c.-691G\>T (rs2052129).
* With the ability to attend the foreseen face-to-face and telephonic study visits.
* With the ability to intake the product under study
* Explicit agreement on study participation by reading, understanding, and signing the informed consent reviewed and approved by the Grupo Hospitalario Quironsalud-Catalunya

Exclusion Criteria

* Insomnia symptoms referred by patients that might be explained by other co-morbid sleep disorders, e.g., narcolepsy, circadian rhythm disturbances, parasomnia, etc.
* Taking DAO supplementation less than 1 month prior to the start of the study.
* Following a diet low in histamine less than 1 month prior to the start of the study.
* Volunteers with allergies to some of the ingredients of the product under study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AdSalutem Sleep Institute

OTHER

Sponsor Role collaborator

AB Biotek

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Karol Enrique Uscamaita Amaut, MD

Role: PRINCIPAL_INVESTIGATOR

AdSalutem Sleep Institute

Locations

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AdSalutem Sleep Institute

Barcelona, Barcelona, Spain

Site Status

Countries

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Spain

Other Identifiers

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DAO-SLEEP-2023

Identifier Type: -

Identifier Source: org_study_id

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