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Re-Induction After Initial Response With Immune Therapy With Radiotherapy in Lung Cancer

Re-Induction of a Systemic Immune Response After Initial Response With Immune Therapy With Radiotherapy in Metastatic or Locally Recurrent Lung Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03406468
Enrollment
36
Registered
2018-01-23
Start date
2019-07-15
Completion date
2023-03-01
Last updated
2023-04-04

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

Conditions

Non-Small Cell Carcinoma of Lung, TNM Stage 4

Keywords

non small cell lung cancer, immune therapy, radiotherapy

Brief summary

Radiotherapy in combination with different forms of immune therapy improved consistently local tumor control and very interestingly, lead to better systemic tumor control and the induction of specific anti-cancer immunity with a memory effect. In small series, it has been shown that a new long-lasting remission can be induced by irradiating one tumor site in patients who showed cancer progression after an initial response to immune therapy. In these series, the original immune therapy was continued and the treatment was very well tolerated. In this study the progression-free survival after radiotherapy to a single lesion will be investigated in patients with stage IV non-small cell lung cancer (NSCLC), who have at least achieved stable disease with immune therapy alone or concurrent immune therapy and chemotherapy.

Detailed description

Radiation has consistently been shown to activate key elements of the immune system. Radiotherapy in combination with different forms of immune therapy such as anti-PD-(L)1, anti-CTLA4,immunocytokines, dendritic cell vaccination and Toll-like receptor agonists improved consistently local tumor control and very interestingly, lead to better systemic tumor control (the abscopal effect) and the induction of specific anti-cancer immunity with a memory effect. Moreover, as PD1/PD-L1 is upregulated by radiation and radiation can overcome resistance for PD-(L)1 blockage, their combination is logical. In small series, it has been shown that a new long-lasting remission can be induced by irradiating one tumor site in patients who showed cancer progression after an initial response to immune therapy. In these series, the original immune therapy was continued and the treatment was very well tolerated. In this study the progression-free survival after radiotherapy to a single lesion will be investigated in patients with stage IV non-small cell lung cancer (NSCLC), who have at least achieved stable disease with immune therapy alone or concurrent immune therapy and chemotherapy.

Interventions

RADIATIONRadiotherapy

Patients continue the same immune therapy they already received and get radiotherapy to one lesion. The lesion may or may not be symptomatic. The preferred radiotherapy dose is 24 Gy in 3 fractions (dosage on the 10 Gy isodose is allowed), but other fractionation schedules (e.g. 30 Gy/ 10 fractions, 20 Gy/ 5 fractions, 20-24 Gy / 1 fraction for SRS (stereotactic radiosurgery)) are allowed if these are standard for a certain location or palliative indication in the body.

Sponsors

The Netherlands Cancer Institute
CollaboratorOTHER
Maastricht University Medical Center
CollaboratorOTHER
Zuyderland Medical Centre
CollaboratorOTHER
Maastricht Radiation Oncology
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Given the objective of this phase II trial and the limited number of patients, no formal statistical analyses are planned. Analysis will be limited to presentation of frequencies and proportions and the report of descriptive statistics (e.g. mean, median and/or range) in tabulated form.

Eligibility

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

Inclusion criteria

* Stage IV non-small cell lung cancer * Initially a Complete Remission, Partial Remission or Stable Disease under immune therapy alone or concurrent immune therapy and chemotherapy and now progressive disease * Able to continue the immune therapy

Exclusion criteria

* Not able to continue the already initiated immune therapy * Patients with any grade 3 toxocity * Patients in whom radiotherapy cannot be delivered, according to the radiation oncologist at the multi-disciplinary patient discussion

Design outcomes

Primary

MeasureTime frameDescription
Progression free survival3 months after end of radiotherapyProgression free survival

Secondary

MeasureTime frameDescription
Remission rate irradiated lesion3 months after end of radiotherapyRemission rate (RECIST 1.0) of the irradiated lesion
Remission rate non-irradiated lesion(s)3 months after end of radiotherapyRemission rate (RECIST 1.0) of the non-irradiated lesion(s)
Toxicity3 months after end of radiotherapyToxicity evaluation CTCAE4.0

Countries

Netherlands

Outcome results

None listed

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