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Autologous Muscle Derived Cells for Gastro-Intestinal Repair (AMDC-GIR) for Tongue Dysphagia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT02838316
Recruitment Status : Recruiting
First Posted : July 20, 2016
Last Update Posted : June 13, 2019
Cook MyoSite
Information provided by (Responsible Party):
Peter Belafsky, MD, University of California, Davis

Brief Summary:
The primary objective of this study is to evaluate the safety of Autologous Muscle Derived Cells for Gastro-Intestinal Repair (AMDC-GIR) during the 12 months following treatment of tongue dysphagia in male and female patients who have undergone surgery and/or chemo- and/or radiotherapy for squamous cell cancer of the oropharynx.

Condition or disease Intervention/treatment Phase
Oropharyngeal Dysphagia Drug: Autologous Muscle Derived Cells for Gastro-Intestinal Repair (AMDC-GIR) Phase 1

Detailed Description:

This preliminary, prospective, dose escalating clinical study will evaluate the safety and potential efficacy of Autologous Muscle Derived Cells for Gastro-Intestinal Repair (AMDC-GIR) for the treatment of tongue dysphagia (TD) that develops following treatment for head and neck cancer.

Surgery, chemo- and radiotherapy can induce significant TD resulting in long-term TD. Therefore, augmenting tongue muscle function may be beneficial to patients. Autologous muscle cell therapy, which involves isolation of cells from skeletal muscle biopsies, ex vivo expansion, and subsequent injection into the tongue, may serve as a potential durable therapy. In animal studies, muscle derived cells have successfully integrated within tissue to improve tongue strength and function. Intramuscular injection of AMDC-GIR is expected to produce localized tissue changes near the injection site and is not expected to produce a systemic effect.

Patients will receive a single treatment intramuscular injection of 1 of 2 doses of AMDC-GIR. Patients will have quantitative and qualitative measures of dysphagia assessed before treatment and at various times after treatment.

The study will treat up to 20 patients at 1 clinical site. Enrollment is expected to be completed within 2 years of initiating the study. Patients will be followed for 24 months post-treatment. The first 3 patients at each dose must reach 1-month follow-up before subsequent patients can be treated.

Male and female patients at least 18 years of age who have undergone surgery and/or chemo- and or radiotherapy for primary treatment of oropharyngeal squamous cell cancer and who present with symptoms and findings of TD will be eligible for participation. Eligible patients will have muscle tissue harvested using a needle biopsy technique during an outpatient procedure. The harvested muscle tissue will be transported to the manufacturer for cell processing. The muscle derived cells (MDC) will be isolated and expanded in culture over several weeks.

After reaching the desired concentration, the isolated and expanded AMDC-GIR will be frozen and shipped back to the investigating physician. The physician will thaw the AMDC-GIR and dilute the sample with an approximately equal volume of physiological saline. Under direct vision, the resulting suspension will be injected into the patient's tongue in a brief outpatient procedure.

Patients will be assessed for improvement in TD symptoms at 3 months, 6 months, 12 months and 24 months following treatment. Adverse events will be assessed at those visits, as well as during follow-up calls at 1-2 days, 1 week, 15 months, 18 months and 21 months.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 20 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Intervention Model Description: Phase I open label clinical trial
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Muscle Cell Mediated Therapy for Tongue Dysphagia: An Investigation of Cook MyoSite Autologous Muscle Derived Cells
Actual Study Start Date : May 24, 2017
Estimated Primary Completion Date : September 2021
Estimated Study Completion Date : December 2021

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: 150 x 106 dosage
10 subjects will be receiving a dosage of 150 x 106 AMDC-GIR
Drug: Autologous Muscle Derived Cells for Gastro-Intestinal Repair (AMDC-GIR)
Autologous muscle derived stem cells

Experimental: 300 x 106 dosage
10 subjects will be receiving a dosage of 300 x 106 AMDC-GIR
Drug: Autologous Muscle Derived Cells for Gastro-Intestinal Repair (AMDC-GIR)
Autologous muscle derived stem cells

Primary Outcome Measures :
  1. Study product-related Serious Adverse Events (SAEs) [ Time Frame: 24 months ]
  2. Study product-related, biopsy procedure-related, and injection procedure-related adverse events [ Time Frame: 24 months ]

Secondary Outcome Measures :
  1. Penetration-Aspiration scale rating from swallowing fluoroscopy [ Time Frame: 24 months ]
  2. Pharyngeal Constriction Ratio measurement from swallowing fluoroscopy [ Time Frame: 24 months ]
  3. Upper Esophageal Sphincter opening measurement from swallowing fluoroscopy [ Time Frame: 24 months ]
  4. Pharyngeal transit time measurement from swallowing fluoroscopy [ Time Frame: 24 months ]
  5. Peak pharyngeal pressure measurement from high-resolution manometry [ Time Frame: 24 months ]
  6. Anterior tongue pressure measurement from Iowa Oral Performance Instrument (IOPI) [ Time Frame: 24 months ]
  7. Patient-reported dysphagia symptoms based on Eating Assessment Tool- EAT10 score [ Time Frame: 24 months ]
  8. Patient-reported quality of life based on SF-12 survey score [ Time Frame: 24 months ]
  9. Patient-reported voice symptoms based on Voice Handicap Index - VHI10 score [ Time Frame: 24 months ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Male or Female, at least 18 years old, with primary symptoms of TD following surgery and/or chemo- and/or radiotherapy for treatment of squamous cell carcinoma for oropharyngeal cancer. Treatment must be completed at least 24 months prior to enrollment, with TD and disease-free status confirmed by medical history and clinical symptoms, including a focused head and neck examination evaluation, swallowing fluoroscopy, and high resolution pharyngeal manometry.
  2. TD severity should be moderate as defined by a Functional Oral Intake Scale (FOIS, provided in Appendix C). Individuals must have a FOIS of 3 or better.
  3. Patient has failed to achieve acceptable resolution of symptoms following conservative therapies.

Exclusion Criteria:

Patient History-based Criteria:

  1. Simultaneously participating in another investigational drug or device study or has completed the follow-up phase for the primary endpoint of any previous study less than 30 days prior to the first evaluation in this study.
  2. Previously treated with an investigational device, drug, or procedure for TD within 6 months prior to signing consent.
  3. Has ever been treated with a cell therapy for TD.
  4. Symptoms of aspiration pneumonia prior to enrollment.
  5. TD of neurogenic etiology or uncorrected congenital abnormality leading to TD.
  6. Neuromuscular disorder (e.g., Parkinson's disease, muscular dystrophy, multiple sclerosis) that could lead to TD.
  7. Moderate or severe fibrosis at likely injection site.
  8. Morbidly obese (BMI ≥ 35).
  9. Uncontrolled diabetes.
  10. Compromised immune system due to disease state, chronic corticosteroid use, or other immunosuppressive therapy.
  11. Medical condition or disorder that may limit life expectancy or that may cause clinical investigation plan (CIP) deviations (e.g., unable to perform self-evaluations or accurately report medical history, symptoms, or data).
  12. History of bleeding diathesis or uncorrectable coagulopathy.
  13. Known allergy or hypersensitivity to bovine proteins or allergens, gentamicin sulfate, or ampicillin that medically warrants exclusion as determined by the physician.
  14. Any non-skin cancer that has necessitated treatment within the past 24 months.

Patient's Current Status-based Criteria:

  1. Evidence or known high risk of recurrent or persistent cancer as determined by the physician during screening.
  2. Tests positive for Hepatitis B (required tests: Hepatitis B Surface Antigen [HBsAg] and Anti-Hepatitis B Core Antibody [Anti-HBc]), Hepatitis C (required test: Hepatitis C Antibody [Anti-HCV]), HIV (required tests: HIV Type 1 and 2 Antibodies [Anti-HIV-1, 2]), and/or Syphilis.

    a. Tests performed by certified/authorized testing laboratory using licensed/approved tests and performed on blood samples collected within 30 days prior to muscle tissue procurement.

  3. Cannot, or is not willing to, maintain the current treatment regimen for existing conservative therapy (e.g., swallowing therapy).
  4. Requires prophylactic antibiotics for chronic infections, or has required 2 or more courses of antibiotics for infections in the 2 months prior to signing consent.
  5. Any condition, including current infection, which could lead to significant postoperative complications.
  6. Refuses to provide written informed consent.
  7. Not available for, or willing to comply, with the baseline and follow-up evaluations as required by the CIP.
  8. Pregnant, lactating, or plans to become pregnant during the course of the study.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02838316

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Contact: Nogah Nativ, PhD 9167348763
Contact: Peter Belafsky, MD, PhD 9167348763 ext 1

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United States, California
UC Davis Medical Center, Department of Otolaryngology, Head and Neck Surgery Recruiting
Sacramento, California, United States, 95817
Contact: Nogah Nativ, PhD   
Sponsors and Collaborators
Peter Belafsky, MD
Cook MyoSite
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Principal Investigator: Peter Belafsky, MD, PhD University of California Davis, Department of Otolaryngology
Principal Investigator: Maggie Kuhn, MD University of California Davis, Department of Otolaryngology
Study Director: Nogah Nativ, PhD University of California Davis, Department of Otolaryngology

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Responsible Party: Peter Belafsky, MD, Professor and Director of Voice and Swallowing Center,UC Davis Health System-Department of Otolaryngology, University of California, Davis Identifier: NCT02838316     History of Changes
Other Study ID Numbers: 801019
801019-1 ( Other Identifier: UC Davis )
First Posted: July 20, 2016    Key Record Dates
Last Update Posted: June 13, 2019
Last Verified: June 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Deglutition Disorders
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases
Pharyngeal Diseases
Otorhinolaryngologic Diseases