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Locally Advanced NSCLC Hyperfractionated RT

Phase II Study of Accelerated and Adaptive Radiation Therapy for Locally-Advanced Non-Small Cell Lung Cancer (NSCLC)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03128008
Acronym
ADAPT
Enrollment
10
Registered
2017-04-25
Start date
2017-12-07
Completion date
2021-01-27
Last updated
2021-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Carcinoma, Non Small Cell Lung (NSCLC)

Brief summary

This is a prospective phase II study designed to evaluate an accelerated and adaptive RT approach for locally-advanced non-small cell lung cancer (NSCLC). All eligible subjects will have an interim PET-CT during radiation therapy to determine the metabolic complete response rate. Radiation therapy will be given in an accelerated fashion (2 Gy/fraction, 6 fractions/week) with concurrent chemotherapy. Interim responses will be assessed using PERCIST criteria. Despite concurrent chemotherapy and radiation therapy, local/regional failure occurs in \ 50% of patients with locally-advanced NSCLC. Clinical studies have demonstrated that accelerated fractionation (giving the same total dose in a shorter period of time) improves outcomes in several malignancies, including lung cancer. Administering higher than conventional doses of RT to all sites of original disease leads to inferior outcomes. Adapting the RT approach, giving a higher dose to slowly responding disease as assessed with interim PET has been shown to be feasible. PERCIST (Positron Emission Tomography Response Criteria in Solid Tumors) provides guidelines on how to report responses to therapy based on PET-CT. PET-CT response has been shown to be prognostic in a variety of clinical scenarios in lung cancer including after induction therapy. In one study, PET was performed after neoadjuvant chemoradiotherapy (40-50.4 Gy). Complete or partial metabolic response using PERCIST criteria was predictive of loco-regional, distant, and overall progression-free survival.

Interventions

DRUGCarboplatin

Single arm non randomized open label study. Subjects will receive standard of care Carboplatin IV once a week. Chemotherapy is given concurrently with daily hyperfractioned radiation therapy.

DRUGPaclitaxel

Single arm non randomized open label study. Subjects will receive standard of care Paclitaxel IV once a week. Chemotherapy is given concurrently with daily hyperfractioned radiation therapy.

RADIATIONDaily hyperfractionated radiation therapy

All subjects will receive 6 fractions(2Gy per fraction) of radiation therapy weekly. All subjects will complete an interim PET-CT after 48Gy-54Gy of RT . Subjects with a complete response on PET will complete RT at 60 Gy; subjects who have residual disease on interim PET and meet strict planning constraints eligibility will proceed to boost RT for a total RT dose of 72Gy. Interim PET-CT response will be measured using PERCIST criteria.

Sponsors

Duke University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Histologic/cytologic documentation of non-small cell lung cancer (NSCLC) 2. Unresectable stage II, IIIA, or IIIB disease 3. Zubrod/ECOG performance status 0-1 4. Weight loss \< 10% in preceding 3 months prior to diagnosis 5. Adequate organ function defined as the following 6. Absolute neutrophil count of ≥ 1,500 and platelet count ≥ 100,000 7. Cockcroft calculated creatinine clearance of ≥ 45 ml/min or 1.5 x the upper limit of normal (ULN) 8. A total bilirubin ≤ 1.5 ULN, aspartate aminotransferase (AST) ≤ 2.0 x ULN 9. ≥ 18 years of age. 10. Negative pregnancy test in women of child-bearing potential 11. Signed study-specific informed consent. 12. No prior chemotherapy or radiotherapy for NSCLC 13. No prior mediastinal or thoracic radiation

Exclusion criteria

1. Prior thoracic irradiation. 2. Medical contraindications to thoracic irradiation. 3. Pre-existing sensory neuropathy of grade ≥ 2 4. Pleural effusion: when pleural fluid is visible on both CT scan and on a chest x-ray, a pleuracentesis is required to confirm that the pleural fluid is cytologically negative. Patients with effusions that are minimal (i.e. not visible on chest x-ray) or that are too small to safely tap are eligible 5. Patients with contralateral hilar involvement

Design outcomes

Primary

MeasureTime frameDescription
The Metabolic Complete Response Rate, Assessed Using Interim PET-CT, in an Accelerated Fashion (2 Gy/Fraction, 6 Fractions/Week) With Concurrent Chemotherapy4 weeksFor the cohort of the participants who meet eligibility criteria and receive radiotherapy with concurrent chemotherapy, the metabolic complete response (MCR) rate will be measured with interim PET-CT utilizing PERCIST response reporting criteria.

Secondary

MeasureTime frameDescription
The Number of Participants Eligible for an RT Boost After Completing a Standard Dose of RT (60 Gy), Delivered in an Accelerated Fashion (6 Fractions/Week) With Concurrent Chemotherapy4 weeksIn the same participant cohort, the proportion of the participants who are eligible for an RT boost after completing a standard dose of RT (60 Gy), delivered in an accelerated fashion (6 fractions/week) with concurrent chemotherapy, will be estimated as well as its confidence interval.
Overall Survival With an Accelerated and Adaptive RT Approach.2 yearsThe overall survival (OS) for the treated participants will be characterized by Kaplan-Meier estimator. The medial OS will be estimated with a 95% confidence interval.
Progression-free Survival (PFS) With an Accelerated and Adaptive RT Approach.2 yearsMedian progression-free survival for participants will be characterized by Kaplan-Meier estimator. The median PFS will be estimated as well as their 95% confidence intervals.
Number of Participants With Local Control With an Accelerated and Adaptive RT Approach2 yearsThe local control rate for the same cohort of participants will be measured by standard of care imaging per NCCN guidelines at routine follow up clinic visits.

Countries

United States

Participant flow

Participants by arm

ArmCount
Carboplatin/Paclitaxel With Radiation Therapy
Single arm, non randomized, open label study. Eligible subjects will receive standard of care Carboplatin IV once a week, Paclitaxel IV once a week given concurrently with daily hyperfractionated radiation therapy (RT). RT will be delivered as 6 fractions weekly. Carboplatin: Single arm non randomized open label study. Subjects will receive standard of care Carboplatin IV once a week. Chemotherapy is given concurrently with daily hyperfractioned radiation therapy. Paclitaxel: Single arm non randomized open label study. Subjects will receive standard of care Paclitaxel IV once a week. Chemotherapy is given concurrently with daily hyperfractioned radiation therapy.
10
Total10

Baseline characteristics

CharacteristicCarboplatin/Paclitaxel With Radiation Therapy
Age, Continuous67.5 years
STANDARD_DEVIATION 7.18
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
7 Participants
Region of Enrollment
United States
10 Participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
2 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
2 / 10
other
Total, other adverse events
9 / 10
serious
Total, serious adverse events
6 / 10

Outcome results

Primary

The Metabolic Complete Response Rate, Assessed Using Interim PET-CT, in an Accelerated Fashion (2 Gy/Fraction, 6 Fractions/Week) With Concurrent Chemotherapy

For the cohort of the participants who meet eligibility criteria and receive radiotherapy with concurrent chemotherapy, the metabolic complete response (MCR) rate will be measured with interim PET-CT utilizing PERCIST response reporting criteria.

Time frame: 4 weeks

Population: 8 participants have RECIST measurements available

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Carboplatin/Paclitaxel With Radiation TherapyThe Metabolic Complete Response Rate, Assessed Using Interim PET-CT, in an Accelerated Fashion (2 Gy/Fraction, 6 Fractions/Week) With Concurrent ChemotherapyProgressive Disease1 Participants
Carboplatin/Paclitaxel With Radiation TherapyThe Metabolic Complete Response Rate, Assessed Using Interim PET-CT, in an Accelerated Fashion (2 Gy/Fraction, 6 Fractions/Week) With Concurrent ChemotherapyStable Disease6 Participants
Carboplatin/Paclitaxel With Radiation TherapyThe Metabolic Complete Response Rate, Assessed Using Interim PET-CT, in an Accelerated Fashion (2 Gy/Fraction, 6 Fractions/Week) With Concurrent ChemotherapyPartial Response1 Participants
Carboplatin/Paclitaxel With Radiation TherapyThe Metabolic Complete Response Rate, Assessed Using Interim PET-CT, in an Accelerated Fashion (2 Gy/Fraction, 6 Fractions/Week) With Concurrent ChemotherapyComplete Response0 Participants
Secondary

Number of Participants With Local Control With an Accelerated and Adaptive RT Approach

The local control rate for the same cohort of participants will be measured by standard of care imaging per NCCN guidelines at routine follow up clinic visits.

Time frame: 2 years

Population: One participant does not have any follow up data.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Carboplatin/Paclitaxel With Radiation TherapyNumber of Participants With Local Control With an Accelerated and Adaptive RT Approach1 Participants
Secondary

Overall Survival With an Accelerated and Adaptive RT Approach.

The overall survival (OS) for the treated participants will be characterized by Kaplan-Meier estimator. The medial OS will be estimated with a 95% confidence interval.

Time frame: 2 years

Population: 1 participant did not have any follow up data

ArmMeasureValue (MEDIAN)
Carboplatin/Paclitaxel With Radiation TherapyOverall Survival With an Accelerated and Adaptive RT Approach.NA months
Secondary

Progression-free Survival (PFS) With an Accelerated and Adaptive RT Approach.

Median progression-free survival for participants will be characterized by Kaplan-Meier estimator. The median PFS will be estimated as well as their 95% confidence intervals.

Time frame: 2 years

Population: One participant did not have any follow up data

ArmMeasureValue (MEDIAN)
Carboplatin/Paclitaxel With Radiation TherapyProgression-free Survival (PFS) With an Accelerated and Adaptive RT Approach.13.39 months
Secondary

The Number of Participants Eligible for an RT Boost After Completing a Standard Dose of RT (60 Gy), Delivered in an Accelerated Fashion (6 Fractions/Week) With Concurrent Chemotherapy

In the same participant cohort, the proportion of the participants who are eligible for an RT boost after completing a standard dose of RT (60 Gy), delivered in an accelerated fashion (6 fractions/week) with concurrent chemotherapy, will be estimated as well as its confidence interval.

Time frame: 4 weeks

Population: 9 participants indicated whether they had Boost or not

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Carboplatin/Paclitaxel With Radiation TherapyThe Number of Participants Eligible for an RT Boost After Completing a Standard Dose of RT (60 Gy), Delivered in an Accelerated Fashion (6 Fractions/Week) With Concurrent Chemotherapy3 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026