UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000046913
Receipt number R000053514
Scientific Title Relationship between local control rate and overall survival rate in stereotactic body radiotherapy for early-stage lung cancer: systematic review
Date of disclosure of the study information 2022/04/01
Last modified on 2023/08/17 09:47:58

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Basic information

Public title

Relationship between local control rate and overall survival rate in stereotactic body radiotherapy for early-stage lung cancer: systematic review

Acronym

Relationship between local control rate and overall survival rate in stereotactic body radiotherapy for early-stage lung cancer: systematic review

Scientific Title

Relationship between local control rate and overall survival rate in stereotactic body radiotherapy for early-stage lung cancer: systematic review

Scientific Title:Acronym

Relationship between local control rate and overall survival rate in stereotactic body radiotherapy for early-stage lung cancer: systematic review

Region

Japan


Condition

Condition

Non-small cell lung cancer

Classification by specialty

Radiology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

The aim of this systematic review is to clarify whether local control is correlated with overall survival rate in stereotactic body radiotherapy for early-stage non-small cell lung cancer.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Others

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Meta-regression analysis to investigate correlation coefficient between local control and overall survival

Key secondary outcomes

Meta-regression analysis to investigate correlation coefficient between local control and outcomes including cancer-specific survival, distant metastases-free survival, and disease-free survival


Base

Study type

Others,meta-analysis etc


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients with NSCLC staged as T1-2N0 treated with SBRT are aimed for the study. We will include studies in which dose prescription methods and local control rate were described. Articles with at least 25 cases and a median follow-up duration of at least 12 months was included.Articles were published as full reports. Non-English reports will be excluded.The reports are permitted for centrally located tumors, or T3 or T4 tumors consisted of less than 30% of the entire study population.

Key exclusion criteria

Articles including metastasis or articles which overall survival and local control rates are not determined on a one-to-one basis will be excluded.
Studies involving patients with metastatic lung tumors, postoperative recurrence or lymph node metastases, or studies restricted to elderly patients are excluded.
The reports were excluded if patients are recruited for a certain property of the tumor or patients characteristics such as pathology, ground-glass opacity, operability, or interstitial pneumonia.
Data that only reported outcomes for specific patient groups (e.g., operable vs. inoperable) or tumor groups (e.g., histologically proven vs. unproven) and for which no overall outcome was given are excluded.
Studies including particle therapy and concurrent chemotherapy are excluded.
Concurrent chemotherapy is not permitted.

Target sample size



Research contact person

Name of lead principal investigator

1st name Naoko
Middle name
Last name Sanuki

Organization

Ofuna Chuo Hospital

Division name

Radiation Oncology Center

Zip code

2470056

Address

6-2-24, Ofuna, Kamakura, Kanagawa, Japan

TEL

0467452111

Email

naokosanuki@icloud.com


Public contact

Name of contact person

1st name Naoko
Middle name
Last name Naoko

Organization

Ofuna Chuo Hospital

Division name

Radiation Oncology Center

Zip code

2470056

Address

6-2-24, Ofuna, Kamakura, Kanagawa, Japan

TEL

0467452111

Homepage URL


Email

naokosanuki@icloud.com


Sponsor or person

Institute

Ofuna Chuo Hospital

Institute

Department

Personal name



Funding Source

Organization

Self Funding

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

N/A

Address

N/A

Tel

N/A

Email

N/A


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

大船中央病院


Other administrative information

Date of disclosure of the study information

2022 Year 04 Month 01 Day


Related information

URL releasing protocol

https://pubmed.ncbi.nlm.nih.gov/37024056/

Publication of results

Unpublished


Result

URL related to results and publications

https://pubmed.ncbi.nlm.nih.gov/37024056/

Number of participants that the trial has enrolled

13435

Results

Purpose: Local control (LC) is an important outcome of local cancer therapy, besides overall survival (OS). We conducted a comprehensive literature search to investigate whether a high LC rate contributes to good OS in radiotherapy for early-stage non-small cell lung cancer (ES-NSCLC).
Conclusions: Three-year LC was correlated with three-year OS in patients receiving radiotherapy for ES-NSCLC. A 5% increase in 3-year LC is expected to improve the 3-year CSS and OS rates by 3.8% and 2.8%, respectively.

Results date posted

2023 Year 08 Month 17 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

Materials and methods: Studies in patients receiving radiotherapy for peripheral ES-NSCLC, mainly staged as T1-2N0M0 were included for a systematic review. Relevant information was collected including, dose fractionation, T stage, median age, 3-year LC, cancer-specific survival (CSS), disease-free survival (DFS), distant metastasis-free survival (DMFS), and OS. Correlations between outcomes and clinical variables were evaluated.

Participant flow

After screening, 101 data points from 87 studies including 13,435 patients were selected for the quantitative synthesis.

Adverse events

Toxicities of grade 3 or higher were low (3.4%).

Outcome measures

Results: After screening, 101 data points from 87 studies including 13,435 patients were selected for the quantitative synthesis. Univariate meta-regression analysis revealed that the coefficients between the 3-year LC and 3-year DFS, DMFS, CSS, and OS were 0.753 (95% confidence interval (CI): 0.307-1.199; p < 0.001), 0.360 (95% CI: 0.128-0.593; p = 0.002), 0.766 (95% CI: 0.489-1.044; p < 0.001), and 0.574 (95% CI: 0.275-0.822; p < 0.001), respectively. Multivariate analysis revealed that the 3-year LC (coefficient, 0.561; 95% CI: 0.254-0.830; p < 0.001) and T1 proportion (coefficient, 0.207; 95% CI: 0.030-0.385; p = 0.012) were significantly associated with the 3-year OS and CSS (coefficient for 3-year LC, 0.720; 95% CI: 0.468-0.972; p < 0.001 and T1 proportion, 0.002; 95% CI: 0.000-0.003; p = 0.012).

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Main results already published

Date of protocol fixation

2022 Year 03 Month 31 Day

Date of IRB

2022 Year 04 Month 01 Day

Anticipated trial start date

2022 Year 04 Month 01 Day

Last follow-up date

2022 Year 04 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This study will be conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses.

Study Search
We will systematically search PubMed on April 1, 2022. The search formula for PubMed is the followings: ((NSCLC OR non-small cell lung cancer OR ((lung OR pulmonary) AND (cancer OR carcinoma OR malignancy OR tumor OR neoplasm OR neoplasms OR carcinomas OR malignancies)) AND ((humans[Filter]) AND (english[Filter]))) AND (SBRT[title] OR SRT[title] OR SABR[title] OR stereotactic[title] AND ((humans[Filter]) AND (english[Filter])))) AND (local control OR local recurrence OR local relapse OR local progression AND ((humans[Filter]) AND (english[Filter]))). Reference lists in the included articles were also checked as hand search.


Data Extraction
Data will be extracted by the two investigators independently and cross-checked.


Data Interpretation
Pearson's or Spearman's correlation coefficient between local control and overall survival rates will be calculated.


Management information

Registered date

2022 Year 02 Month 14 Day

Last modified on

2023 Year 08 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000053514