Efficacy and Safety of Allogenic Cultured Adipose-derived Mesenchymal Stromal Cell Injections on MoUth Fibrosis and Handicap in Patients With Systemic sclEroderma

Phase 2Not Yet RecruitingNCT07326033

University Hospital, Toulouse50 enrolled

Overview

Orofacial manifestations and microstomia are a frequent complication in systemic sclerosis (SSc) with a major impact on oral hygiene, dental care and quality of life. Peri-oral injection of allogeneic cultured adipose-derived stromal cells constitutes a promising approach to treat scleroderma-induced mouth fibrosis where no alternative therapy is validated. The aim of this phase 2 study is to compare efficacy and safety of perioral injection of allogeneic cultured adipose-derived stromal cells (AdMSC) versus placebo to improve oro-facial fibrosis in patients with systemic sclerosis.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Enrollment

Conditions

Systemic Scleroderma

Interventions

AdMSC

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Male or female patient ≥18 years of age, * Patient with systemic scleroderma according to the 2013 ACR/EULAR classification criteria, * Mouth Handicap in Systemic Sclerosis Scale (MHISS) score more than or equal to 20 (0-48), * Rodnan skin score on the face more than or equal to 1, * Maximal mouth opening of less than 40 mm (distance between the dental arches) * Patient must have provided written informed consent prior to enrolment, * Patient must be able to understand their requirements of participating in the protocol. * Patient affiliated to a social security system. Exclusion Criteria: * Patient participating in a clinical trial or having participated in a clinical trial within the previous 3 months, * Injection of botulinum toxin within 4 weeks prior to "inclusion visit", * Patient who underwent autologous hematopoietic stem cell transplantation (HSCT) within less than 1 year, * Local active labial herpes virus within 1 week prior to "inclusion visit", * Patients with an indication for intensification by autologous HSCT (according to EBMT guidelines and national MATHEC-SFGMTC guidelines), * History of cancer in the last five years, except for successfully excised basal cell/squamous cell carcinoma, or successfully excised early melanoma of the skin. Subjects, who had a successful tumor resection or radiation or chemotherapy more than 5 years prior to inclusion and no recurrence, may be enrolled in the study, * Radio- or chemotherapy in progress, * Females who are pregnant or breastfeeding or plan to be or do so during the course of this study, * Women of childbearing potential (WOCBP) who are sexually active and unwilling to use an adequate birth control method, * Vulnerable patient (persons deprived of their liberty by judicial or administrative decision, persons undergoing psychiatric treatment, persons admitted to a health or social establishment for purposes other than research) according to article L1121-6 of the Public Health Code

Locations (5)

Bordeaux Hospital

Bordeaux, France

Dijon Hospital

Dijon, France

Montpellier Hospital

Montpellier, France

Nantes Hospital

Nantes, France

Toulouse Hospital

Toulouse, France

Outcomes

Primary Outcomes

Change in the Mouth Handicap in Systemic Sclerosis scale (MHISS)

the change in the Mouth Handicap in Systemic Sclerosis scale (MHISS) between baseline and week 12. An improvement of at least 5 points will be considered clinically significant

Time frame: Day 0, 12 weeks after injection

Secondary Outcomes

Safety of treatment

The safety throughout the course of the study (until week 24 since baseline) will be assessed by monitoring adverse events, serious adverse events and injection site reactions.

Time frame: Day 0, 4, 12 and 24 weeks after injection

Efficacy on oral function by facial scanners

Efficacy on oral function is a composite measure derived from the change in maximum interincisal distance and mouth perimeter by facial scanners with digital acquisition of the patient's face in just a few seconds

Time frame: Day 0, 4, 12 and 24 weeks after injection

Efficacy on orofacial handicap

Efficacy on orofacial handicap is a composite measure derived from change in Opening, Dryness and Aesthetic the 3 subscales of the MHISS

Time frame: Day 0, 4, 12 and 24 weeks after injection

Patient satisfaction

the patients will be asked to fill in a simple questionnaire where their degree of satisfaction could be expressed by a composite measure derived by a semiquantitative score (unsatisfied, mildly/moderately satisfied, rather satisfied, and very satisfied), Scleroderma Health Assessment Questionnaire (sHAQ), Oral Health Assessment Tool (OHAT), Burden of Face Affected questionnaire (BOFA) and EQ-5D-5L

Time frame: Day 0, 4, 12 and 24 weeks after injection

Oral habits and hygiene

Change in oral habits and hygiene is a composite measure derived from oral health and hygiene questionnaire

Time frame: Day 0 and 24 weeks after injection

oral microbiota

Change in oral microbiota mesuared in unstimulated saliva

Time frame: Day 0, 12 and 24 weeks after injection

Plaque index

Change in Plaque index (reflecting the ability to maintain oral hygiene)

Time frame: Day 0, 12 and 24 weeks after injection

Change in decayed missing filled teeth

Change in decayed missing filled teeth (DMFT) index : a commonly used index validated by the WHO to assess oral status and the examinator simply counts the number of decayed, missing (due to caries or periodontal disease) and restored/filled teeth.

Time frame: Day 0 and 24 weeks after injection

Change in mandibular tracking

Change Mandibular tracking is a composite measure derived from mandibular tracking and articular and neuro-muscular activity. Mandibular tracking and neuro-muscular activity will be measured with electrodes positioned in order to assess muscular activity at rest, muscle activity during mouth closure as well as during extreme movement of mouth opening and closing, mandibular propulsion and deduction. Muscle contraction synchronism and contraction efficacy will also be measured as well as the 3-dimensional innoclusion space and mandibular movement during swallowing

Time frame: Day 0, 4, 12 and 24 weeks after injection

Posture by stabilometry

Change posture by stabilometry

Time frame: Day 0, 12 and 24 weeks after injection

psycho-social aspects and oro-facial pains

Change in psycho-social aspects and oro-facial pains is a composite measure derived from EDAS21, Epworth and Combadazou-Destruhaut questionnaire

Time frame: Day 0, 4, 12 and 24 weeks after injection

Rodnan skin score

Change in modified Rodnan skin score

Time frame: Day 0, 12 and 24 weekds after injection

Dry mouth syndrome

Change in dry mouth syndrome is a composite measure derived from the change in Xerostomia Inventory questionnaire , in salivary flow, in the salivary pH and Salivary pH

Time frame: Day 0, 4, 12 and 24 weeks after injection

Efficacy on aesthetics

the efficacy on aesthetics assessed by Standardized two-dimensional photographs or face scan

Time frame: Day 0, 4 , 12 and 24 weeks after injection

Immunomonitoring of vascular and antifibrotic biomarkers

Immunomonitoring of vascular and antifibrotic biomarkers (V5. Endothelin-1, Endostatin, Endogline, Angiotensin I and II, Tie 1 and 2, VEGF, sICAM-1, sVCAM, E-selectin, CXCL4) measured in blood samples

Time frame: Day 0 and 12 weekds after injection

Efficacy and Safety of Allogenic Cultured Adipose-derived Mesenchymal Stromal Cell Injections on MoUth Fibrosis and Handicap in Patients With Systemic sclEroderma

Overview

Conditions

Interventions

Eligibility

Locations (5)

Outcomes

Primary Outcomes

Secondary Outcomes

Central Contacts