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Lung CancerNCT04507828

Combined Deep Inspiration Breath Hold (DIBH)-Expiration Planning Technique in Patients With Lung Tumors in Close Proximity to the Chest Wall

A study testing Treatment Planning using the DIBH Technique in people with Lung Cancer and Metastatic Cancer, run by Indiana University at 1 site in United States.

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

The purpose of this study is to evaluate a new radiation planning and treatment delivery technique called Deep Inspiration Breath Hold (DIBH) and expiration technique. This technique will be used to treat patients who have tumors close to the chest wall and are candidates for Stereotactic Body Radiation Therapy… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Lung Cancer, Metastatic Cancer
What is being tested?
Treatment Planning using the DIBH Technique
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
4 participants
Where
1 siteUnited States
Study dates
2 Oct 2020to 30 Dec 2024
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age≥ 18 at time of consent
  • Karnofsky Performance Status (KPS) > 40
  • Ability to provide written informed consent and HIPAA authorization
  • Clinical or pathological diagnosis of primary lung cancer or metastasis to the lung
  • Tumors must be located within 2 cm from the chest wall, defined as the inner border of the 2-cm lung expansion volume (per TG101)
  • Plan to receive Lung SBRT

Who cannot join

  • Patients with tumors with > 50% overlap between respiratory states based on CT simulation will not be eligible for this study
  • Previous radiation therapy to the same site per investigator discretion
  • Inability to comply with treatment or standard of care follow up per investigator discretion

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Indiana University Hospital / IU Simon Cancer Center

    Indianapolis, Indiana, 46202

Other trials in United States

About this study

The purpose of this study is to evaluate a new radiation planning and treatment delivery technique called Deep Inspiration Breath Hold (DIBH) and expiration technique. This technique will be used to treat patients who have tumors close to the chest wall and are candidates for Stereotactic Body Radiation Therapy (SBRT). This study will assess the reduction of radiation to the chest wall during treatment using this technique.

Read the detailed description

Multiple studies have evaluated the efficacy of SBRT in patients with early stage lung cancer. The original Indiana University phase II trial evaluating three fraction SBRT with a total dose of 60-66 Gy for T1 and T2 (<7cm) lesions and median follow up of 50.2 months revealed a 3-year local failure rate of 5.7%. Tumor size and location did not impact tumor recurrence. [3]. RTOG 0236, which was a multi-institutional phase II trial evaluating the efficacy of three fraction SBRT for patients with peripherally located tumors, reported that 3-year local control rate was 98% with a median overall survival of 4 years and overall survival at 3 years of 56%. Long- term results of RTOG 0236 revealed a 5-year local failure rate of 7% and a 5-year overall survival rate of 40% [4, 5]. In addition, a pooled analysis of two randomized trials (Randomized study to Compare CyberKnife to Surgical Resection in Stage I Non-small Cell Lung Cancer [STARS] and the Trial of Either Surgery or Stereotactic Radiotherapy for Early Stage [IA] Lung Cancer [ROSEL]) comparing SBRT vs. lobectomy for operable stage I (T1-2aN0M0) NSCLC showed a 3-year overall survival for SBRT of 95% and for surgery of 79% (HR=0.14, p=0.037). There was no statistically significant difference between both groups in terms of 3-year rate of recurrence-free survival (HR = 0.69, p = 0.54) [5]. To evaluate the efficacy of SBRT (66 Gy in 3 fractions) compared to standard treatment (70 Gy in 35 fractions), 102 patients, with stage I inoperable NSCLC, were randomized to each treatment arm in the SPACE trial. The results were consistent with similar overall survival and progression free survival on both treatment groups. According to the TROG 09.02 CHISEL trial, stage I inoperable NSCLC patients treated with SBRT had superior local control of the primary disease (HR: 0.32) without an increase in major toxicity compared to patients treated with standard fractionation[6].

Pulmonary metastases frequently happen in patients with different types of cancer. Around 50% of patients who suffer from malignancy-related mortality have pulmonary metastasis at the time of autopsy [7]. In 1995, Hellman et al introduced the concept of oligometastases and the importance of aggressive surgical or ablative therapies to improve overall survival in this population [8]. As a result, SBRT technique has been widely used to treat pulmonary metastases. Multiple studies have evaluated this technique including a retrospective study evaluating 577 patients who undergo SBRT for pulmonary metastases that revealed 5-year local control of 46.3% and 5-year overall survival of 21.8% [9]. Based on the above findings, the researchers propose a prospective feasibility trial evaluating the combined DIBH-expiration planning and delivery technique in patients with lung tumors in close proximity to the chest wall who are candidates to receive lung SBRT per their standard care.

Based on the observed respiration dependent movement during CT simulation the study team will assign patients into two cohorts: A) Tumors with no overlap between respiratory states and B) Tumors with up to 50% overlap between respiratory states. For A, the study team will have a composite plan delivering half the dose using DIBH plan and the other half using the expiration phase plan for each fraction. For B) the radiation target will be subdivided into different zones with different zones receiving different prescriptions. The study plan will be compared to a standard plan specifically designed for the same patient. Researchers hypothesize that this technique will enable us to reduce chest wall V30 by 50% and deliver 54 Gy in 3 fractions while meeting all the dosimetric constraints. Cohorts A and B will be analyzed separately. Other dosimetric parameters will be evaluated in this trial.

Being tested
Treatment Planning using the DIBH Technique
Keywords
Radiation Treatment, Lung Cancer, Metastatic Cancer, Stereotactic Body Radiation Therapy (SBRT)
Medical subject headings
Lung Neoplasms, Neoplasm Metastasis

What participants receive

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

  • Treatment Planning using the DIBH TechniqueRadiation

    Different radiation plans will be generated-one using a DIBH scan with corresponding target and normal tissue contour and a second using an expiration scan with corresponding target and normal tissue contours. The expiration scan can be an expiratory gating scan averaging the expiratory breathing phases or an expiration breath hold scan as determined based on patient performance during simulation and relative tumor displacement compared to the DIBH scan. Then a third plan will be generated conceptually combining the two previous plans, named the DIBH-expiration composite plan.

Study groups in NCT04507828
Study groupRoleWhat they receive
Combined DIBH-Expiration Planning TechniqueExperimentalPatients will undergo a 4D scan as well as a DIBH scan and an expiration breath hold scan. In order to develop a combined DIBH-Expiration treatment plan, the DIBH scan, the expiration phase of the 4D scan or the expiration breath hold scan will be used. If the radiation plan meets the coverage goals and normal tissue constraints, the patient will receive treatment using the new DIBH Planning Technique. If coverage and normal tissue constraints are not met per protocol, the patient will be treated per standard of care and not on protocol. Patients treated on protocol will undergo radiation treatment with SBRT for a total of 3 fractions and will receive each fraction no more frequently then every other day. Patients will then be evaluated at 1 month after SBRT completion and every 3 months for 2 years
Receives: Radiation: Treatment Planning using the DIBH Technique

What is being measured

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

  1. Reduction in chest wall V30 using combined DIBH-expiration planning technique

    The percentage of patients with an at least 50% reduction in chest wall V30 using combined DIBH-expiration planning technique in comparison to DIBH or expiration gating alone in the same patient

    Measured: 2 weeks (SBRT planning)

Secondary outcomes (7)
  1. Patients treated using DIBH planning technique

    Percentage of patients treated with 54 Gy in 3 fractions using our new technique, who did not meet constraints for three fraction treatments using standard planning delivery techniques

    Measured: 8 weeks (treatment with SBRT)

  2. Chest wall toxicity

    Incidence of chest wall toxicity

    Measured: 1 year

  3. Rib fracture

    Incidence of rib fracture (based on surveillance imaging)

    Measured: 1 year

  4. Local control rate

    local control rates (defined as no tumor recurrence within 80% isodose line)

    Measured: 2 year

  5. Time in treatment room

    Amount of on-table time in treatment room

    Measured: 8 weeks (completion of SBRT)

  6. Reduction in chest wall maximum dose

    The calculated mean average of dosimetric reduction in chest wall maximum dose

    Measured: 2 weeks (SBRT planning)

  7. Evaluate lung dose

    Evaluation of mean lung dose

    Measured: 2 weeks

Timeline

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

  1. First posted11 Aug 2020
  2. Study start2 Oct 2020
  3. Primary completion16 Feb 2023
  4. Study completion30 Dec 2024

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
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04507828
Sponsor's protocol ID
RAON-IIR-IUSCC-0711
Status last verified
Mar 2025
First submitted
7 Aug 2020
Last updated
1 Apr 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Treatment Planning using the DIBH Technique in people with Lung Cancer and Metastatic Cancer, run by Indiana University at 1 site in United States.

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 3 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 1 Apr 2025. 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 United States. 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?

Reduction in chest wall V30 using combined DIBH-expiration planning technique (time frame: 2 weeks (SBRT planning)). 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 1 Apr 2025.

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