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A clinical trial comparing the pain response of single-dose 8 Gy versus multiple-dose radiotherapy for painful non-bone tumors

A Randomized Phase III Study Investigating Noninferiority of Pain Response in Single-Fraction 8 Gy Radiotherapy versus Multi-Fraction Radiotherapy for Painful Non-Bone-Metastasis tumors - PASTEL study

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1060250023
Enrollment
270
Registered
2025-06-18
Start date
2025-06-18
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Painful Non-Bone-Metastasis tumors

Interventions

Standard Treatment (Arm A) Each participating site shall select one of the following fractionation schedules at the time of study enrollment: 1. 4 Gy per fraction, once daily, 5 fractions per week

Sponsors

Saito Tetsuo
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) The patient is aged 18 years or older at the time of enrollment. 2) The patient has a histologically confirmed diagnosis of solid cancer (excluding hematologic malignancies such as lymphoma and multiple myeloma). 3) The patient has a painful non-bone-metastasis tumor with a Numerical Rating Scale (NRS) score of 2 or higher. 4) If the patient has other sources of pain, each has a lower NRS score than the protocol-designated lesion. 5) The cause of pain is not brain metastasis. 6) The protocol-designated lesion has not been previously irradiated. 7) The patient has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 3. 8) No local treatment with the intent of prolonging survival is planned for the protocol-designated lesion. 9) The protocol-designated lesion is not a case of multiple hepatocellular carcinomas or liver metastases for which whole-liver-irradiation is planned. 10) Written informed consent has been obtained from the patient.

Exclusion criteria

Exclusion criteria: 1) Patients with serious comorbidities, such as infections, heart failure, hepatic failure, renal failure, collagen diseases, or psychiatric disorders, who are deemed unsuitable for participation in the study. 2) Patients with psychiatric disorders that may interfere with study participation. 3) Patients who are pregnant, breastfeeding, or may possibly be pregnant.

Design outcomes

Primary

MeasureTime frame
Two-month overall pain response rate in all enrolled patients (intention-to-treat analysis)

Secondary

MeasureTime frame
1) Two-month complete pain response rate 2) Six-month and twelve-month overall pain response rates 3) Six-month and twelve-month complete pain response rates 4) Presence or absence of pain unrelated to the protocol-designated lesion 5) Treatment completion rate 6) Duration of pain response 7) Re-irradiation rate 8) Adverse events 9) Quality of life (EQ-5D-5L) 10) Cost 11) Overall survival

Contacts

Public ContactNobuki Imano

Hiroshima University Hospital

imano@hiroshima-u.ac.jp+81-822571545

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026