Clinical trialPhase 2Terminated
MR-Guided Adaptive SBRT of Primary Tumor for Pain Control in Metastatic PDAC
MR-Guided Adaptive Stereotactic Body Radiotherapy (SBRT) of Primary Tumor for Pain Control in Metastatic Pancreatic Ductal Adenocarcinoma (mPDAC) - a Randomized, Controlled Clinical Study
- Outcome
- Stopped earlyLow accrual, close out in November 2025 (Enrollment)
- Phase
- Phase 2
- Status
- Terminated
- Study type
- Interventional
- Start
- 15 December 2021
- Expected end
- 11 November 2025
- Enrollment
- 9 participants
- Sites
- 3
- Primary outcomes
- Mean cumulative pain index
- Sponsor
- Other
- Results posted
- No
- Last update
- 5 December 2025
These are registry fields. A trial card, with population, design, endpoints and result direction each tied to a quote, is not in the data yet.
Ask this document
Answers come only from this document’s own text, as highlighted quotes. If it doesn’t say, you are told so instead of given a guess.
Try
Source text
Brief summary public domain (ClinicalTrials.gov)
The MASPAC trial investigates the added benefit of MR-guided adaptive SBRT of the primary tumor embedded between standard chemotherapy cycles for pain control and prevention of pain in patients with metastatic PDAC (mPDAC).
Detailed description public domain (ClinicalTrials.gov)
Patients not progressing after 8 weeks of standard of care systemic therapy (SoC-CT: minimum doublet chemotherapy) will be included and randomized between arm A, receiving MR-guided adaptive SBRT of the primary tumor combined with continuation of SoC-CT, and arm B, continuing SoC-CT without SBRT. Arm A: The primary tumor is treated with SBRT (6.6 Gy x 5) on a MR-LINAC in breath-hold technique. This scheme was shown to have a reasonable toxicity profile on a conventional LINAC. A low toxicity profile is even more important in patients with metastatic and therefore definitively incurable cancer. Therefore, treatment is performed on a MR-LINAC to deliver high doses to the tumor while keeping the toxicity profile as low as possible. For this purpose, daily adaptive planning is performed aiming to maintain stringent dose constraints for organs at risk (duodenum / stomach / bowel / kidney). Chemotherapy will be continued after SBRT. Arm B: Continuing SoC-CT (according to clinical routine appr. 2 weeks after the previous cycle) without SBRT.