Using Glialia for Treating Persistent Perceptual Postural Dizziness
Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18-65
SponsorI.R.C.C.S. Fondazione Santa Lucia
About this trial
This pilot study will involve 30 participants recruited from the Santa Lucia Foundation IRCCS, including 20 patients diagnosed with Persistent Perceptual Postural Dizziness (PPPD), and might or might not have previously contracted Sars Cov2 infection. They who will be randomly assigned to receive either the Glialia supplement or placebo. Additionally, 10 control participants who have recovered from COVID-19 will receive Glialia to help assess the influence of previous COVID-19 infection on neuroinflammation levels. The study aims to compare baseline neuroinflammation levels between PPPD patients and controls, measure changes in neuroinflammation in all groups after treatment and to determine if the reduction in neuroinflammation is more significant in the Glialia group compared to the placebo group. The trial will be conducted in a triple-blind manner, ensuring that neither participants nor researchers know the treatment assignments. Each participant will receive sachets to be taken daily for 60 days, with the study providing both the Glialia supplement and placebo at no cost.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Diagnosis of PPPD;
Recovery from COVID-19 infection or absence of previous infection.
Diagnosis of PPPD;
Recovery from COVID-19 infection or absence of previous infection (matched to the PPPD-glialia group).
Disqualifiers
Presence of concurrent neurological and otological disorders other than PPPD;
Pregnant women.
Presence of neurological and otological disorders;
Pregnant women.
Trial design
Design model
Parallel
Treatments tested in this trial
Glialia
Other interventionParticipants in the PPPD-Glialia group will receive the Glialia supplement, which contains 700 mg of Palmitoylethanolamide (umPEA) along with 70 mg of additional supportive ingredients. Each participant will be instructed to take two soluble sachets daily for a total duration of 60 days. This group aims to evaluate the effects of Glialia on PPPD, with outcomes assessed for neuroinflammation, mental clarity, quality of life, balance, and gait quality.
Placebo
Other interventionParticipants assigned to the PPPD-Placebo group will receive a placebo that is designed to be indistinguishable from the Glialia supplement in terms of appearance and packaging. They will also take two soluble sachets daily for 60 days. The purpose of this group is to serve as a control to evaluate the effects of the Glialia supplement by comparing the outcomes with those of the PPPD-Glialia group. The same assessments for neuroinflammation, mental clarity, quality of life, balance, and gait quality will be performed.
Control
Other interventionIndividuals in the Control Group will receive the same Glialia supplement as the PPPD-Glialia group, containing 700 mg of Palmitoylethanolamide (umPEA) and 70 mg of supportive ingredients. They will also take two soluble sachets daily for 60 days. The primary goal for this group is to assess how the Glialia supplement affects neuroinflammation and related outcomes in individuals who have recovered from COVID-19 but do not have PPPD. This comparison will help clarify the potential effects of Glialia in the context of both PPPD and recovery from COVID-19.
Treatment groups
30 Participants
are divided into 3 treatment groupsGroup A: GlialiaExperimental treatment 1 intervention
Group B: PlaceboPlacebo comparator 1 intervention
Group C: Control groupOther 1 intervention
Trial outcomes
Primary outcomes
1
Neuroinflammation Assessment
The neuroinflammation assessment will evaluate serum neurofilament light chain (NfL) levels as a biomarker for neuroinflammation in participants with PPPD and controls. Blood samples will be collected via venipuncture at the Foundation Santa Lucia IRCCS. The analysis will utilize a sensitive enzyme-linked immunosorbent assay (ELISA) method to quantify NfL levels. The Simoa NF-Light advantage kit will enable accurate detection of low concentrations. This assessment aims to compare neuroinflammation levels at baseline (T0) and after treatment (T1) across the study groups.
Time frame
T0 (Baseline); T1 (60 days)Secondary outcomes
1
Gait Quality Assessment
Gait quality will be assessed using inertial sensors. Set of magneto-inertial sensors (Opal, APDM Inc., Portland, Oregon, USA) will be used during the execution of walking motor tasks. Changes of continuous accelerometer signals will be recorded.
Time frame
T0 (Baseline); T1 (60 days)2
Video Head Impulse Test (vHIT)
The Video Head Impulse Test (vHIT) is performed to assess the vestibulo-ocular reflex (VOR). Conducted before T0, this test ensures that participants do not have underlying VOR dysfunction prior to inclusion in the study.
Time frame
T0 (Baseline).3
Dizziness Handicap Inventory (DHI)
The Dizziness Handicap Inventory (DHI) measures the impact of dizziness on an individual's daily life and activities. Participants will complete this questionnaire at T0 and T1 to assess any changes in disability related to dizziness. The DHI provides insights into the physical, emotional, and functional limitations experienced by patients, facilitating a comprehensive evaluation of the treatment's effectiveness in improving quality of life. The maximum score for the DHI ranges from 0 to 100, with higher scores indicating greater instability.
Time frame
T0 (Baseline); T1 (60 days)4
Niigata Questionnaire
The Niigata questionnaire assesses subjective symptoms related to PPPD. It is administered to participants at both T0 and T1 to evaluate changes in symptom perception over the treatment period. The questionnaire consists of various items that help quantify the intensity and frequency of PPPD symptoms, allowing for a comparative analysis of symptom improvement in the PPPD-glialia and PPPD-placebo groups. The maximum score is 72, with higher scores reflecting greater instability. Each of its three domains (upright posture/walking, movement, and visual stimulation) has a maximum score of 24.
Time frame
T0 (Baseline); T1 (60 days)Sponsors and contacts
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Source ClinicalTrials.gov