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Abscopal effects in metastasized cancer patients treated with radiotherapy and immune checkpoint inhibition

Abscopal effects in metastasized cancer patients treated with radiotherapy and immune checkpoint inhibition - ARTIC

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00032390
Enrollment
62
Registered
2023-07-31
Start date
2022-07-08
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

Abscopal effects under radio-immunotherapy of all tumour entities treated with it

Interventions

Group 1: Radiotherapy and Immune Checkpoint Inhibition

Sponsors

Universitätsklinikum Köln
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Patients with documented evidence of metastatic solid tumor of any entity and simultaneous RT-ICI between 06/2015 (start ICI) and 06/2021 (end RT) at participating centers. - At least one lesion outside the irradiation field: non-irradiated lesion (outside the 10% isodose, NIL) - Radiological images of the NILs prior to initiation of RT (at least two) and after the end of RT (at least one) to exclude an effect induced by ICI only

Exclusion criteria

Exclusion criteria: - Start of another systemic therapy during the time period being analyzed - Inadequate imaging to assess abscopal effect or exclude response induced by ICI only

Design outcomes

Primary

MeasureTime frame
Rate of abscopal effects based on radiological images of non-irradiated lesions: long axis diameter (nodal lesions: short axis diameter) (mm) measurement in =3 radiological images according to iRECIST: - AR = Abscopal Response: Reduction by =30% - AP = Abscopal Progression: Increase by =20% - AC = Abscopal Control

Secondary

MeasureTime frame
Secondary Endpoints: - Survival outcomes (OS, PFS) - RT-ICI concepts used (dose, fractionation, technique, sequence) - Number of applied RT-courses ("lifetime” RT dose) - Change in laboratory parameters if available (inflammation status, nutrition status, LDH, HPV, EBV, PDL1)

Countries

Germany

Contacts

Public ContactMaike Trommer

Universitätsklinikum Köln

maike.trommer@uk-koeln.de+49 221 478 5495

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026