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XerostomiaPhase 1/2XEROCELLNCT05857358

Safety and Potential Effect of Innovative Cell-based Therapy Using Adipose-derived Stromal Vascular Fraction in Patients With Autoimmune Xerostomia

A Phase 1/2 study testing lipoaspiration and Injection of the autologous adipose-derived stromal vascular fraction (AD-SVF) in people with Xerostomia, run by Assistance Publique Hopitaux De Marseille.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The main objective of this study is to evaluate the tolerance and safety of autologous adipose-derived stromal vascular fraction injected in accessory salivary glands for treatment of autoimmune xerostomia in terms of adverse reactions through day 14 (D14). Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Xerostomia
What is being tested?
lipoaspiration and Injection of the autologous adipose-derived stromal vascular fraction (AD-SVF)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
No sites listed yet
Study dates
Jan 2024to Aug 2027
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients from 18 to 65 years.
  • Patients suffering from xerostomia and autoimmune disease including : Gougerot-Sjögren disease according to AC/EULAR criteria and Secondary Gougerot-Sjögren syndrome related to systemic diseases (sclerodermia, rheumatoid arthritis, systemic lupus erythematosus...)
  • Xerostomia visual scale (6-item visual analogue scale questionnaire) for assessment of salivary dysfunction : score ≥ 30/60
  • Informed consent to participate (with signature)
  • Negative β -HCG test and effective contraception for women being able to get pregnant
  • Affiliation to the social security system

Who cannot join

  • Medical history of head and neck neoplasia
  • Recent (<3 months) medication inducing and aggravating xerostomia : Standard treatment with tricyclic antidepressant and/or antipsychotics
  • Body Mass Index < 18
  • Active smoking (> 5 cigarettes a day)
  • Active infectious disease and/or active viral serologies (HIV, HCV, HBV, HTLV I/II, TPHA/VDRL)
  • Coagulation disorders including anticoagulant and antiplatelet treatment
Show all 14Show fewer
  • Any temporary or definitive contraindication due to any medical or surgical unstable condition
  • Allergy to local anesthesia and/or albumin
  • Pregnant or breastfeeding women
  • Adult protected by the law (tutorship and curatorship)
  • Patients already enrolled in another study
  • Patients under 18 years of age
  • Person deprived of liberty
  • Patient non-affiliated to the social security

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Laurent Guyot, Pr contact

04 91 43 63 13

Laurent.guyot@ap-hm.fr

Alexandra Giuliani contact

0491382870

alexandra.giuliani@ap-hm.fr

About this study

Official title: Safety and Potential Effect of Innovative Cell-based Therapy Using Adipose-derived Stromal Vascular Fraction in Patients With Autoimmune Xerostomia (XEROCELL)

The main objective of this study is to evaluate the tolerance and safety of autologous adipose-derived stromal vascular fraction injected in accessory salivary glands for treatment of autoimmune xerostomia in terms of adverse reactions through day 14 (D14).

Read the detailed description

Autoimmune xerostomia is a disabling condition affecting mostly patients suffering from Sjögren's disease, systemic lupus erythematosus, rheumatoid arthritis and systemic xerostomia.

Local therapies and systemic drug treatments (picarpine) remain the gold standards but have limited effects upon salivary flow action and many adverse effects.

Stem cell therapies and notably adipose tissue-derived stromal cells have shown promising potential for tissue repair. Autologous uncultured adipose-derived stromal vascular fraction (AD-SVF) is recognized as an easily accessible (by a standard lipoaspiration to obtain adipose tissue, from which AD-SVF are isolated by centrifugation), safe and well tolerated source of cells with angiogenic, anti-inflammatory, immunomodulatory and regenerative properties.

The purpose of our AD-SVF phase I trial is to evaluate, first the tolerance of autologous AD-SVF cells locally injected in the oral cavity and second their capability to improve the salivary function.

Conditions
Xerostomia
Being tested
lipoaspiration, Injection of the autologous adipose-derived stromal vascular fraction (AD-SVF)
Medical subject headings
Xerostomia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • lipoaspirationProcedure or surgery

    Adipose tissue harvest will be conducted by a surgeon under under local and intra-veinous sedation anesthesia. Once the patient is asleep and just before the laying of the operating drapes, the skin will be thoroughly disinfected, in order to avoid bacteriological contamination. Each entry point will be disinfected with betadine before and regularly during the procedure and will receive local anesthesia.

    The lipoaspiration sites will be infiltrated using a closed system, thanks to a Khoury canula. Adipose tissue will be harvested after waiting at least 5 minutes, in order to limit hematoma and excessive blood harvesting. A 3mm incision will be made then the tissue collection will be performed using a canula, manually, by gentle aspirations into a syringe then directly transferred into a connected sterile bag.

    The incision will be closed with 1 stitch of 6-0 absorbable and a paraffin gauze dressing. Then, patient will be awaken and transported to the recovery room.

  • Injection of the autologous adipose-derived stromal vascular fraction (AD-SVF)Drug

    Autologous uncultured (AD-SVF) will be isolated by digestion and centrifugation of adipose tissue from lipoaspiration.

    Then, AD-SVF will be injected in 6 sites :

    • 2 for the accessory labial glands (0.5mL in the upper lip and 0.5mL in the lower lip)
    • 2 for the sublingual glands (0.5mL for each gland)
    • 2 for the inner face of cheeks (0.5mL for each side)

    The volume of injection will be of 3 mL containing 30 millions of AD-SVF viable nucleated cells for the total safety dose.

Study groups in NCT05857358
Study groupRoleWhat they receive
Adult patients suffering from xerostomia and autoimmune diseaseExperimentalXerostomia treatment consist of 3 steps (including 2 surgical steps) in the Hospital de la Conception of Marseille, in the same ward : * The plastic/maxillofacial surgeon : collects the adipose tissue, and transfers it to the cell therapy unit; * The cell therapy unit processes and controls the experimental product (adipose-derived stromal vascular fraction; AD-SVF) from the harvested adipose tissue. The AD-SVF batch is nominatively transported to the surgeon; * The maxillofacial surgeon injects the AD-SVF without delay under local anesthesia.
Receives: Procedure: lipoaspiration; Drug: Injection of the autologous adipose-derived stromal vascular fraction (AD-SVF)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Intensity of adverse reactions at the injection site at day 1

    1 day after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with phone assessment

    Measured: 1 day

  2. Intensity of adverse reactions at the injection site at day 3

    3 days after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with phone assessment.

    Measured: 3 days

  3. Intensity of adverse reactions at the injection site at day 7

    7 days after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with clinical assessment.

    Measured: 7 days

  4. Intensity of adverse reactions at the injection site at day 14

    14 days after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with clinical assessment.

    Measured: 14 days

  5. Intensity of adverse reactions at the harvesting site at day 1

    1 day after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event through an adapted report form with phone assessment.

    Measured: 1 day

  6. Intensity of adverse reactions at the harvesting site at day 3

    3 days after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event, through an adapted report form with phone assessment.

    Measured: 3 days

  7. Intensity of adverse reactions at the harvesting site at day 7

    7 days after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event, through an adapted report form with clinical assessment.

    Measured: 7 days

  8. Intensity of adverse reactions at the harvesting site at day 14

    14 days after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event through an adapted report form with clinical assessment.

    Measured: 14 days

Secondary outcomes (16)
  1. Intensity of adverse reactions at the injection site at day 15

    15 days after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with clinical assessment.

    Measured: 15 days

  2. Intensity of adverse reactions at the injection site at month 1

    1 month after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with clinical assessment.

    Measured: 1 month

  3. Intensity of adverse reactions at the injection site at month 3

    3 months after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with clinical assessment.

    Measured: 3 months

  4. Intensity of adverse reactions at the injection site at month 6

    6 months after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with clinical assessment.

    Measured: 6 months

  5. Intensity of adverse reactions at the injection site at month 7

    7 months after ADSVF injection, a subjective evaluation will be done by the patient of lip sensibility, pain, oedema or ecchymosis bleeding or haematoma, bleeding or haematoma, other event through an adapted report form with clinical assessment.

    Measured: 7 months

  6. Intensity of adverse reactions at the harvesting site at day 15

    15 days after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event through an adapted report form with clinical assessment.

    Measured: 15 days

  7. Intensity of adverse reactions at the harvesting site at month 1

    1 month after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event through an adapted report form with clinical assessment.

    Measured: 1 month

  8. Intensity of adverse reactions at the harvesting site at month 3

    3 months after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event through an adapted report form with clinical assessment.

    Measured: 3 months

  9. Intensity of adverse reactions at the harvesting site at month 6

    6 months after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event through an adapted report form with clinical assessment.

    Measured: 6 months

  10. Intensity of adverse reactions at the harvesting site at month 7

    7 months after ADSVF injection, a subjective evaluation will be done by the patient of pain, oedema or ecchymosis bleeding or haematoma, inflammation or infection, other event through an adapted report form with clinical assessment.

    Measured: 7 months

  11. primary efficiency of AD-SVF iin term of glands reparation process/repair (Minor salivary gland biopsy)

    A minor salivary gland biopsy will be done under local anaesthesia 6 months after the injection. Then, an Histological analysis (4 grades Chilson-Mason score) of minor salivary gland biopsy will be performed.

    Measured: 6 months

  12. efficacy of AD-SVF at month 1

    Salivary flow will be collected after stimulation 1 month after the injection. It is expressed in milliliter by minutes after 5 minutes of collect, and oligoptyalism isdefined by a salivary flow < 0.1 mL/mn at rest, and < 0.7 ml/mn after stimulation.

    Measured: 1 month

  13. efficacy of AD-SVF at month 3

    Salivary flow will be collected after stimulation 3 months after the injection. It is expressed in milliliter by minutes after 5 minutes of collect, and oligoptyalism isdefined by a salivary flow < 0.1 mL/mn at rest, and < 0.7 ml/mn after stimulation.

    Measured: 3 months

  14. efficacy of AD-SVF at month 6

    Salivary flow will be collected after stimulation 6 months after the injection. It is expressed in milliliter by minutes after 5 minutes of collect, and oligoptyalism isdefined by a salivary flow < 0.1 mL/mn at rest, and < 0.7 ml/mn after stimulation.

    Measured: 6 months

  15. Change in dryness of oral mucosa

    Change in dryness of oral mucosa will be assessed from Clinical Oral Dryness Score (CODS) based on 10 items realized before and, 3 and 6 months after the injection.

    Measured: 3 months

  16. Change in xerostomia Visual Analogic Scale (VAS)

    Change in VAS will be assessed from a 6-items questionnaire scored from 0 to 10 (increasing gravity) according to Likert scale.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 May 2023
  2. Study startJan 2024 (estimated)
  3. Primary completionFeb 2026 (estimated)
  4. Study completionAug 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
18 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05857358
Sponsor's protocol ID
2023-505149-20-00
Other IDs
2023
Acronym
XEROCELL
Status last verified
Nov 2023
First submitted
14 Apr 2023
Last updated
18 Nov 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing lipoaspiration and Injection of the autologous adipose-derived stromal vascular fraction (AD-SVF) in people with Xerostomia, run by Assistance Publique Hopitaux De Marseille.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 18 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Laurent Guyot, Pr (04 91 43 63 13, Laurent.guyot@ap-hm.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Intensity of adverse reactions at the injection site at day 1 (time frame: 1 day). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Nov 2023.

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