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AzTrials

Lung CancerNCT06692972

The Regression Pattern of Primary Lesions in Lung Cancer After Definitive Radiotherapy

An observational study of Lung Cancer, run by China-Japan Friendship Hospital at 2 sites in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Definitive radiotherapy is one of the important methods for inoperable locally advanced lung cancer. The recommended dose for definitive radiotherapy is 60-70Gy, and the optimal dose is still uncertain. Residual lesion after radiotherapy is a risk factor for recurrence. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Lung Cancer
How many people
500 participants
Where
2 sitesChina
Study dates
25 Dec 2024to 31 Dec 2025
Phase
Observational
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Stage II-III lung cancer patients who have received definitive radiotherapy.

Who may be able to join

  • Age ≥18 years old;
  • Stage II-III lung cancer with a clear pathological diagnosis report or medical record, not undergoing surgery before radiotherapy;
  • The primary lung lesion received definitive radiotherapy (defined as conventional fractionation radiotherapy with dose ≥50Gy, stereotactic radiotherapy with biologically effective dose ≥100Gy);
  • The target lesion of the lung receiving radiotherapy can be measured;
  • Imaging data can be obtained before and after radiotherapy;
  • Complete radiotherapy as planned, or the actual received dose has reached the defined definitive dose.

Who cannot join

  • Before radiotherapy, the primary lesion of the lung had received local treatment such as surgery or ablative treatment;
  • The radiotherapy plan was not completed, and the actual dose received did not reach the definitive dose (defined as conventional fractionation radiotherapy with dose <50Gy, stereotactic radiotherapy with biologically effective dose <100Gy);
  • Required imaging data cannot be obtained;
  • Other conditions considered by the investigator to be inappropriate for enrollment.

Trial locations and contacts

2 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Guangying Zhu, M.D. contact

+86 010-84205380

zryyfa@163.com

China2 sites, 2 recruiting
  • China-Japan Friendship Hospital

    Beijing, Beijing Municipality, 100029

    Guangying Zhu, 86+010-84205380, zryyfa@163.com

    Recruiting
  • Renmin Hospital of Wuhan University

    Wuhan, Hubei, 430060

    Zhenming Fu, 86+027-88041911, davidfuzming@whu.edu.cn

    Recruiting

Other trials in China

About this study

Official title: Exploration of and Model Establishment of the Regression Pattern of Primary Lesions in Lung Cancer After Definitive Radiotherapy

Definitive radiotherapy is one of the important methods for inoperable locally advanced lung cancer. The recommended dose for definitive radiotherapy is 60-70Gy, and the optimal dose is still uncertain. Residual lesion after radiotherapy is a risk factor for recurrence. High doses to targeted tumor areas can effectively improve the local control rate, while minimizing toxic side effects. The regression pattern of primary lesions in lung caner after radiotherapy has not been clarified. This study intends to retrospectively collect clinical data of lung cancer patients with definitive radiotherapy, and explore the pattern of tumor regression after radiotherapy. It will help optimize the radiotherapy plan for lung cancer, so as to improve the efficacy and prognosis.

Read the detailed description

This study intends to retrospectively screen and include participants according to inclusion and exclusion criteria, and collect the clinical data of participants by previous medical records. Imaging tools will be used to quantify changes in the spatial location, diameter and volume of target lesions to evaluate tumor regression rate and radiotherapy efficacy, and to explore tumor regression pattern and establish model. In addition, the relationship between tumor regression rate, incidence of adverse radiation events, prognosis and related factors will be analysed.

Conditions
Lung Cancer
Keywords
lung cancer, radiotherapy
Medical subject headings
Lung Neoplasms

What is being measured

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

  1. Tumor regression rate

    (1- post-treatment tumor volume/baseline tumor volume)×100%

    Measured: Within 1 year after completion of radiotherapy.

Secondary outcomes (5)
  1. Objective response rate

    It refers to the proportion of patients who experience a complete or partial remission of tumors in response to treatment, as determined by RECIST criterion.

    Measured: Within 1 year after completion of radiotherapy.

  2. Disease control rate

    It refers to the proportion of patients who experience an objective response (complete or partial remission) or stable disease in response to treatment, as determined by RECIST criterion.

    Measured: Within 1 year after completion of radiotherapy.

  3. Progression-free survival

    It's calculated from the start of treatment until the time of disease progression or the patient's death, whichever comes first.

    Measured: From the start of treatment until the time of disease progression or death, assessed up to 120 months.

  4. Overall survival

    It measures the length of time from the start of treatment until the death of the patient from any cause.

    Measured: From the start of treatment until the time of death, assessed up to 120 months.

  5. Adverse event rate

    It refers to the frequency of treatment related adverse event.

    Measured: Within 1 year after completion of radiotherapy.

Timeline

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

  1. First posted18 Nov 2024
  2. Study start25 Dec 2024
  3. Primary completion30 Apr 2025 (estimated)
  4. Study completion31 Dec 2025 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Case only
Time perspective
Retrospective
Enrolment
500 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06692972
Sponsor's protocol ID
2024-ZF-38
Status last verified
Feb 2025
First submitted
13 Nov 2024
Last updated
27 Feb 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Research data including study protocol and statistical analysis plan will be shared after the study is completed and the research results are published.

Questions about this trial

What is this clinical trial studying?

An observational study of Lung Cancer, run by China-Japan Friendship Hospital at 2 sites 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 6 inclusion and 4 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: looking for participants now, as of the sponsor's last update on 27 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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?

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 Guangying Zhu, M.D. (+86 010-84205380, zryyfa@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Tumor regression rate (time frame: Within 1 year after completion of radiotherapy.). 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 27 Feb 2025.

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