An Exploratory Study on the Treatment of Chronic Obstructive Pulmonary Disease With Autologous Bronchial Basal Cell Transplantation

March 28, 2022 updated by: ZiLi Meng, Huai'an No.1 People's Hospital

Huai'an First People 's Hospital,Nanjing Medical University

Chronic obstructive pulmonary disease(COPD)is characterized by recurrent cough, expectoration and asthma, and eventually develop chronic pulmonary heart disease ,chronic respiratory failure and even death. The current clinical treatments for these patients are symptomatic treatment cannot solve the problem of the damaged lung structure fundamentally. Recent studies show that bronchial basement the layer of cells is a kind of cells in the bronchial epithelial basal layer position, the specific expression of Krt5 antigen with the regeneration and repair of lung function , these cells have the activity similar to adult tissue stem cells. Its division and migration are more active and can continue to produce new cells to complement the death of other types of epithelial cells with functional plasticity which can be used to direct repair the bronchial and alveolar structures. It has been proved that bronchial basal cell transplantation can repair the damaged lungs of experimental animals . The bronchial basal cells from autologous tissue, so there is no immune rejection problem. Also because the bronchial basal cells derived from adult tissues which is a part of the body, so there is no risk of a tumor (in animal experiments, In animal experiments, bronchial basal cells transtracheal input 100 times in human dose still no tumor formation). In the early stage, patients with COPD (2 cases), bronchiectasis (2 cases) and interstitial lung disease (1 case) received the treatment, and the overall effect was good. Diseases were alleviated and recovered to some different extend.The study was to brush bronchial basal cells through fiberbronchoscopy in COPD patients and cultured in vitro, and then through the bronchoscope transfusion to the lesion site. To preliminary evaluate the efficacy and safety of autologous bronchial basal cells in the treatment of chronic obstructive pulmonary disease.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Between November 2016 and November 2019, the investigators initially recruited 20 with stable COPD patients. Primary evaluations including medical history, physical examination, anthropometric data, blood routine, blood biochemistry, blood coagulation, electrocardiogram,high resolution chest CT, arterial blood gas, pulmonary function test,6-min walking test(6MWT),modified medical research council(MMRC),St George's respiratory questionnaire(SGRQ). After initial evaluation, the investigators obtained extraction bronchial basal cells micro tissue from 3~4 grade bronchus to by mean of fiberbronchoscopy, then purified and selectively amplified bronchial basal cells to reserve .The basal layer cell culture system for our partners (Regend Therapeutics) patented technology using culture medium containing special combination of growth factors and composite materials to simulated composite basal layer environment and can selectively amplified bronchial basal cells, while other types of mature epithelial cells and fibroblasts could not grow naturally. After a period of time, the basal lamina of the bronchial epithelial cells can be stored in the liquid nitrogen cell bank for a long time. Before applied to the patient, bronchial basal cells need to go through a series of strict examination. Then, bronchoscopy was performed again and the bronchial basal lamina suspension was injected directly into the lesion site . Estimate the change of respiratory function(symptoms, signs, chest CT, pulmonary function, the 6 minute walk test, MMRC, SGRQ etc) and serum index in third days , first months, third months, sixth months and first years of the follow-up after treatment respectively, to evaluate the safety and efficiency of autologous bronchial basal cells for treatment of COPD .

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
18

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Jiangsu
      • Huai'an, Jiangsu, China, 223300
        • Huai'an First People's Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. aged between 18 to 70 years

  2. according to the guideline criteria, the diagnosis of COPD:

    ①There is a chronic cough, sputum or gas breathing symptoms such as promoting

    ②Pulmonary function tests showed airflow limitation(FEV1<80% predicted value，FEV1/FVC<0.7)

  3. CT imaging and hematological examination excluded other lung diseases.
  4. stable disease for more than 2 weeks
  5. patients who were able to tolerate fiberoptic bronchoscopy
  6. to sign the informed consent form

Exclusion Criteria:

  1. women who are pregnant, nursing or not taking effective contraception
  2. syphilis, HIV antibody positive person
  3. there is a history of alcohol or illicit drug abuse
  4. patients who had received any other clinical trial within the first 3 months
  5. poor compliance, it is difficult to complete the study
  6. researchers believe there may be any increase in the risk of the subject or any interference with the clinical trial

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: COPD group(self control)
Prior treatment:20 stable COPD patients were enrolled,estimated the respiratory function and serum index Intervention:autologous bronchial basal cell transplantation After treatment:Estimate the change of respiratory function and serum index in third days , first months, third months, sixth months and first years of the follow-up after treatment respectively
Other: autologous bronchial basal cell transplantation
the investigators obtained extraction bronchial basal cells micro tissue from 3~4 grade bronchus, then purified and selectively amplified bronchial basal cells to reserve . After a period of time, the basal lamina of the bronchial epithelial cells can be stored in the liquid nitrogen cell bank for a long time. Before applied to the patient, bronchial basal cells need to go through a series of strict examination. Then, bronchoscopy was performed again and the bronchial basal lamina suspension was injected directly into the lesion site .

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
forced expiratory volume in one second(FEV1)
Time Frame: 24 months
as the severity of chronic obstructive pulmonary disease(COPD)estimated by pulmonary function
24 months
chest high-resolution computed tomography
Time Frame: 24 months
as the severity of lung hyperinflation estimated by radiological
24 months
arterial blood gas
Time Frame: 24 months
to assess the level of hypoxemia and hypercapnia in chronic obstructive pulmonary disease(COPD) patients
24 months
6MWT
Time Frame: 24 months
6 min walking test, to evaluate the exercise function in patients with moderate and severe pulmonary heart diseases
24 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
forced vital capacity(FVC)
Time Frame: 24 months
an index of pulmonary function in chronic obstructive pulmonary disease(COPD) patients
24 months
MMRC
Time Frame: 24 months
an index to evaluate the lever of dyspnea
24 months
SGRQ
Time Frame: 24 months
a questionnaire to assess the influence of chronic airflow restriction on the quality of life, including symptoms, activities and daily life affected by diseases
24 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Huai'an No.1 People's Hospital

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Regend Therapeutics

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Wei Zuo, PhD, Regend Therapeutics,Suzhou Industry Park,Suzhou,CHINA

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 12, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 13, 2017

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 16, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 29, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 28, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2020

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Huaian1PH2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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