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Cell TransplantationNCT03021681

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

A study testing autologous bronchial basal cell transplantation in people with Cell Transplantation, run by Huai'an No.1 People's Hospital at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Cell Transplantation
What is being tested?
autologous bronchial basal cell transplantation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
1 siteChina
Study dates
Nov 2016to Nov 2021
Phase
Interventional
Are there results?
None posted in the registry

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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • aged between 18 to 70 years
  • 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)
  • CT imaging and hematological examination excluded other lung diseases.
  • stable disease for more than 2 weeks
  • patients who were able to tolerate fiberoptic bronchoscopy
  • to sign the informed consent form

Who cannot join

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

Trial locations and contacts

1 site in 1 country.

China1 site
  • Huai'an First People's Hospital

    Huai'an, Jiangsu, 223300

Other trials in China

About this study

Official title: 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.

Read the 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 .

Being tested
autologous bronchial basal cell transplantation

What participants receive

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

  • autologous bronchial basal cell transplantationOther

    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 .

Study groups in NCT03021681
Study groupRoleWhat they receive
COPD group(self control)OtherPrior 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
Receives: Other: autologous bronchial basal cell transplantation

What is being measured

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

  1. forced expiratory volume in one second(FEV1)

    as the severity of chronic obstructive pulmonary disease(COPD)estimated by pulmonary function

    Measured: 24 months

  2. chest high-resolution computed tomography

    as the severity of lung hyperinflation estimated by radiological

    Measured: 24 months

  3. arterial blood gas

    to assess the level of hypoxemia and hypercapnia in chronic obstructive pulmonary disease(COPD) patients

    Measured: 24 months

  4. 6MWT

    6 min walking test, to evaluate the exercise function in patients with moderate and severe pulmonary heart diseases

    Measured: 24 months

Secondary outcomes (3)
  1. forced vital capacity(FVC)

    an index of pulmonary function in chronic obstructive pulmonary disease(COPD) patients

    Measured: 24 months

  2. MMRC

    an index to evaluate the lever of dyspnea

    Measured: 24 months

  3. SGRQ

    a questionnaire to assess the influence of chronic airflow restriction on the quality of life, including symptoms, activities and daily life affected by diseases

    Measured: 24 months

Timeline

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

  1. First posted16 Jan 2017 (estimated)
  2. Study startNov 2016
  3. Primary completionNov 2021
  4. Study completionNov 2021

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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03021681
Sponsor's protocol ID
Huaian1PH2
Status last verified
Aug 2020
First submitted
12 Jan 2017
Last updated
29 Mar 2022
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Zuo W, Zhang T, Wu DZ, Guan SP, Liew AA, Yamamoto Y, Wang X, Lim SJ, Vincent M, Lessard M, Crum CP, Xian W, McKeon F. p63(+)Krt5(+) distal airway stem cells are essential for lung regeneration. Nature. 2015 Jan 29;517(7536):616-20. doi: 10.1038/nature13903. Epub 2014 Nov 12.

    PubMed 25383540
  • Kumar PA, Hu Y, Yamamoto Y, Hoe NB, Wei TS, Mu D, Sun Y, Joo LS, Dagher R, Zielonka EM, Wang de Y, Lim B, Chow VT, Crum CP, Xian W, McKeon F. Distal airway stem cells yield alveoli in vitro and during lung regeneration following H1N1 influenza infection. Cell. 2011 Oct 28;147(3):525-38. doi: 10.1016/j.cell.2011.10.001.

    PubMed 22036562
  • Rock JR, Randell SH, Hogan BL. Airway basal stem cells: a perspective on their roles in epithelial homeostasis and remodeling. Dis Model Mech. 2010 Sep-Oct;3(9-10):545-56. doi: 10.1242/dmm.006031. Epub 2010 Aug 10.

    PubMed 20699479

Questions about this trial

What is this clinical trial studying?

A study testing autologous bronchial basal cell transplantation in people with Cell Transplantation, run by Huai'an No.1 People's Hospital at 1 site in China.

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 8 inclusion and 6 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: finished, as of the sponsor's last update on 29 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

forced expiratory volume in one second(FEV1) (time frame: 24 months). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03021681, which also lists 3 linked publications.

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 29 Mar 2022.

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