Skip to content

Tolerance and Efficiency of an Intrabuccal Biological Film to Enhance Oral Dryness Sensation: The PREDELFI Clinical Pilot Study

Tolerance and Efficiency of an Intrabuccal Biological Film to Enhance Oral Dryness Sensation: The PREDELFI Clinical Pilot Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04206826
Acronym
PREDELFI
Enrollment
10
Registered
2019-12-20
Start date
2020-06-25
Completion date
2021-04-23
Last updated
2025-02-05

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

Conditions

Sicca Syndrome, Xerostomia

Keywords

natural film, prebiotics

Brief summary

Xerostomia affects at least a quarter of the population. This prevalence is increased in postmenopausal women and people over 65 years of age. Associated with age are systemic diseases such as Sjögren's Syndrome, diabetes, Parkinson's disease or cancer. It handicaps the patient in his social life, but also in terms of his well-being by the consequences it generates in the oral cavity. This dryness may be the consequence of taking certain medications, head and neck radiotherapy, but also being a symptom of an underlying pathology whose screening will allow early treatment and avoid complications. Today, no single therapeutic solution is enough and patients are waiting for new therapeutic innovations in this area. This study proposes to evaluate the tolerance of an adhesive film containing prebiotics by comparing it to a placebo control film.

Detailed description

The purpose of this study is to evaluate the tolerance of an adhesive film containing prebiotics on the improvement of signs and symptoms related to dry mouth by comparing it to a placebo film. The primary endpoint is the assessment of tolerability assessed using a visual analogue scale (VAS) from 0 to 100 at the end of the 1-month period of both treatment periods (D30 and D90). In this study, the efficacy and tolerance of the adhesive film containing prebiotics will be analyzed. Each participant in this study will receive two galenic forms of the medical device whose allocation order was previously defined by a randomization list.

Interventions

DEVICEPREDELFI

It's a natural film which contains a concentrated alpha-GOS (alpha-galacto-oligosaccharide) soy extract, a milk protein concentrate containing caseins and whey proteins and vegetable glycerin

DEVICECONTROL

It's a natural film which is devoided of active ingredient. It contains sodium alginate; vegetable glycerin, caramel, beta carotene and water.

Sponsors

University Hospital, Brest
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Intervention model description

Each patient will apply the two films (PreDelfi and control according to randomization) at the level of the gingival mucosa next to the maxillary vestibule for 30 days

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Men or women aged 18 or over * Complaining of xerostomia and validated by a standardized question * With hyposialia diagnosed by the measurement of stimulated salivary flow (DSS) and unstimulated (DNS) * Patient having signed a consent * Registered with Social Security

Exclusion criteria

* The patient having known sensitivity to any of the products or components of the biofilms (milk protein, soy derivatives, sodium alginate, vegetable glycerin, caramel and beta carotene) * Allergic to birch and / or peanut * Having an ethyl intoxication (\> 2 glasses of wine / day), smoking (\> 10 cigarettes / day) * Unable to complete self-assessment questionnaires or to follow study protocol procedures (unable to read and / or write). * Participant in another clinical study at the time of inclusion or having participated in the 30 days preceding recruitment in this study * Having a life-threatening condition for the duration of the study * Treated with sialogogues (pilocarpine hydrochloride) within 30 days prior to inclusion * Using salivary substitutes * Protected persons within the law (articles L1121-5 to L1121-8)

Design outcomes

Primary

MeasureTime frameDescription
Tolerance evaluationday 90The primary endpoint is a composite endpoint of tolerance evaluation defined by: * the patient (EVA from 0 to 100), * the investigator (degree of redness and inflammation of the mucous membranes opposite the site of the device, * reporting adverse events related to the device

Secondary

MeasureTime frameDescription
Oral comfortday 90Self-evaluation of the patient's oral dryness (oral comfort) using a 100mm visual analogue scale (measurement of the absolute variation at the beginning and end of each treatment period)
Subjective evaluation of dry mouthday 90Subjective evaluation of the absolute variation of the specific signs and symptoms of dry mouth (difficulty speaking, chewing swallowing, taste alteration, burning sensations) using 100 mm analogue visual scales
Clinical assessment of the mucousday 90Objective clinical assessment of the general condition of the mucous membranes (redness, dryness, degree of inflammation of periodontal tissues, mucous membranes,...)
Evaluation of salivary flowday 90Objective evaluation of the absolute variation of the stimulated and unstimulated salivary flow rates according to the dosage forms used and the variation of the oral pH using specific strips.
Evaluation of the salivary microbiotaday 90Evaluation by molecular sequencing of the salivary microbiota to study the impact of the film on the modification of the salivary microbiota (quantification of the different species by NGS)

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026