Clinical and Histological Outcomes of Allogenic Amnion Chorion Membrane in the Healing of Free Gingival Graft Donor Site
17 dicembre 2021 aggiornato da: Chun-Teh Lee, The University of Texas Health Science Center, Houston
The purpose of this study is to compare an allogenic amnion chorion membrane to a collagen dressing in palatal wound healing after harvesting free gingival graft (FGG).
Panoramica dello studio
Stato
Completato
Condizioni
Intervento / Trattamento
Tipo di studio
Interventistico
Iscrizione (Effettivo)
19
Fase
- Non applicabile
Contatti e Sedi
Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.
Luoghi di studio
-
-
Texas
-
Houston, Texas, Stati Uniti, 77030
- The University of Texas Health Science Center at Houston
-
-
Criteri di partecipazione
I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.
Criteri di ammissibilità
Età idonea allo studio
18 anni e precedenti (Adulto, Adulto più anziano)
Accetta volontari sani
No
Sessi ammissibili allo studio
Tutto
Descrizione
Inclusion Criteria:
- patients attending the Clinic for Graduate Periodontics at The University of Texas health Science Center at Houston School of Dentistry who are in need of a Free Gingival Graft procedure to augment keratinized gingiva, augment ridge, or cover recession defects.
- systemically healthy or with controlled common systemic conditions, such as hypertension, that will not affect wound healing.
Exclusion Criteria:
- size of the FGG that the patient needs bigger than the size of FGGs that have to be harvested in this study (two 8mm (width) x 10mm (length) x ≈1.5mm (thickness) FGG).
- current heavy smokers(>10 cigarettes/day) (patients who stop smoking more than one year are eligible)
- have diabetes or other systemic diseases that may comprise healing
- take antibiotics and/or analgesics within one week before the procedure and have loss of sensation on the palate
Piano di studio
Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Separare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Allogenic amnion chorion membrane
Allogenic amnion chorion membrane (ACM) is a minimally manipulated allograft amnion chorion tissue for use as a wound covering in dental surgery.
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Allogenic amnion chorion membrane (ACM) is a minimally manipulated allograft amnion chorion tissue for use as a wound covering in dental surgery.
|
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Comparatore attivo: Collagen dressing
Collagen dressing is used to cover wounds in dental surgery.
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Collagen dressing is used to cover wounds in dental surgery.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Size of Wound Area
Lasso di tempo: baseline
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
baseline
|
|
Size of Wound Area
Lasso di tempo: 4 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
4 days
|
|
Size of Wound Area
Lasso di tempo: 10 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
10 days
|
|
Size of Wound Area
Lasso di tempo: 14 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
14 days
|
|
Size of Wound Area
Lasso di tempo: 21 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
21 days
|
|
Size of Wound Area
Lasso di tempo: 28 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
28 days
|
|
Size of Wound Area
Lasso di tempo: 45 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
45 days
|
|
Size of Wound Area
Lasso di tempo: 60 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
60 days
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: baseline
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
baseline
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: 4 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
4 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: 10 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
10 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: 14 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
14 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: 21 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
21 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: 28 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
28 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: 45 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
45 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Lasso di tempo: 60 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
60 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: baseline
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The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
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baseline
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: 4 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
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4 days
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: 10 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
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10 days
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: 14 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
14 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: 21 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
21 days
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: 28 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
28 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: 45 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
45 days
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Lasso di tempo: 60 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
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60 days
|
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Number of Participants With Haemostasis of Wound Area
Lasso di tempo: baseline
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
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baseline
|
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Number of Participants With Haemostasis of Wound Area
Lasso di tempo: 4 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
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4 days
|
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Number of Participants With Haemostasis of Wound Area
Lasso di tempo: 10 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
10 days
|
|
Number of Participants With Haemostasis of Wound Area
Lasso di tempo: 14 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
14 days
|
|
Number of Participants With Haemostasis of Wound Area
Lasso di tempo: 21 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
21 days
|
|
Number of Participants With Haemostasis of Wound Area
Lasso di tempo: 28 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
28 days
|
|
Number of Participants With Haemostasis of Wound Area
Lasso di tempo: 45 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
45 days
|
|
Number of Participants With Haemostasis of Wound Area
Lasso di tempo: 60 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
60 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: baseline
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
baseline
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: 4 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
4 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: 10 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
10 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: 14 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
14 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: 21 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
21 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: 28 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
28 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: 45 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
45 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Lasso di tempo: 60 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
60 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: baseline
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensitivity based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
baseline
|
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Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: 4 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
4 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: 10 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
10 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: 14 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
14 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: 21 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
21 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: 28 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
28 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: 45 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
45 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Lasso di tempo: 60 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
60 days
|
|
Volume of Wound
Lasso di tempo: baseline
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
baseline
|
|
Volume of Wound
Lasso di tempo: 4 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
4 days
|
|
Volume of Wound
Lasso di tempo: 10 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
10 days
|
|
Volume of Wound
Lasso di tempo: 14 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
14 days
|
|
Volume of Wound
Lasso di tempo: 21 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
21 days
|
|
Volume of Wound
Lasso di tempo: 28 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
28 days
|
|
Volume of Wound
Lasso di tempo: 45 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
45 days
|
|
Volume of Wound
Lasso di tempo: 60 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
60 days
|
|
Clinician's Feedback on the Wound Dressing Material as Assessed by a Questionnaire
Lasso di tempo: at the time of placement of the wound dressing material
|
at the time of placement of the wound dressing material
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Number of Neutrophil Cells as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Lasso di tempo: baseline
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope.
|
baseline
|
|
Number of Neutrophil Cells as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Lasso di tempo: 10 days
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope.
|
10 days
|
|
Change in Percentage of Collagen Density in Wound Area as Assessed by Light Microscopy of Masson's Trichrome-stained Biopsy Sections
Lasso di tempo: baseline, 10 days
|
baseline, 10 days
|
|
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Thickness of the Epithelium as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Lasso di tempo: baseline
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope, and Nikon NIS-Elements Advanced Research (AR) Imagine Software will be used to calculate the thickness of the epithelium.
|
baseline
|
|
Thickness of the Epithelium as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Lasso di tempo: 10 days
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope, and Nikon NIS-Elements Advanced Research (AR) Imagine Software will be used to calculate the thickness of the epithelium.
|
10 days
|
|
Angiogenesis as Indicated by Number of Blood Vessels as Assessed by Light Microscopy of Biopsy Sections Immunohistochemically Stained to Detect Factor VIII (Von Willebrandt Factor)
Lasso di tempo: baseline
|
baseline
|
|
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Angiogenesis as Indicated by Number of Blood Vessels as Assessed by Light Microscopy of Biopsy Sections Immunohistochemically Stained to Detect Factor VIII (Von Willebrandt Factor)
Lasso di tempo: 10 days
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope, and the area of angiogenesis will be quantified using Nikon NIS Element AR Imagine Software.
|
10 days
|
Collaboratori e investigatori
Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.
Investigatori
- Investigatore principale: Chun-Teh Lee, The University of Texas Health Science Center, Houston
Studiare le date dei record
Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.
Studia le date principali
Inizio studio (Effettivo)
3 ottobre 2016
Completamento primario (Effettivo)
17 gennaio 2020
Completamento dello studio (Effettivo)
17 gennaio 2020
Date di iscrizione allo studio
Primo inviato
17 ottobre 2018
Primo inviato che soddisfa i criteri di controllo qualità
17 ottobre 2018
Primo Inserito (Effettivo)
19 ottobre 2018
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
19 gennaio 2022
Ultimo aggiornamento inviato che soddisfa i criteri QC
17 dicembre 2021
Ultimo verificato
1 dicembre 2021
Maggiori informazioni
Termini relativi a questo studio
Altri numeri di identificazione dello studio
- HSC-DB-18-0303
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
No
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
Sì
prodotto fabbricato ed esportato dagli Stati Uniti
No
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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