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Clinical Study on the Re-irradiation of Lateral Pelvic Recurrences of Gynecological Malignancies

Phase II Clinical Study on the Re-irradiation of Lateral Pelvic Recurrences of Gynecological Malignancies

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05457595
Acronym
CYCLOPS
Enrollment
55
Registered
2022-07-14
Start date
2021-02-24
Completion date
2028-02-25
Last updated
2025-08-06

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

Conditions

Malignant Epithelial Neoplasm, Malignant Epithelial Neoplasm of Vulva, Malignant Epithelial Tumor of Ovary, Tumor Recurrence

Keywords

gynecological cancer, carbon ion radiation therapy, recurrencies, CIRT

Brief summary

The study aims to obtain a local control rate in patients with lateral pelvic relapses of gynecologycal cancers previously irradiated. High LET (Linear Energy Transfer) particles as carbon ions can guarantee a biologic advantage compared to photons in radioresistant neoplasms, given to their higher biological efficacy (RBE).

Detailed description

Primary aim: estimate the effect, in terms of clinical response, of carbon ion treatment (CIRT) in patients with lateral pelvic recurrences of gynecological malignancies. Secondary aims: 1. To describe the safety profile of carbon ion therapy. 2. To estimate the effect, in terms of survival, of carbon ion treatment

Interventions

RADIATIONcarbon ion radiation therapy

CIRT: Planning Target Volume (PTV) will be delivered a total dose of 48-52.8 GyRBE in 12 fractions, 4 fractions per week. Treatment duration 3 weeks. Treatment lasting more than 5 weeks or cases of treatment with less than 6 fractions in 14 consecutive days will not be accepted.

Sponsors

CNAO National Center of Oncological Hadrontherapy
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Enrolled subjects will undergo to carbon ion radiation therapy. It is a monocentric, prospective II study.

Eligibility

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

Inclusion criteria

* Patients ≥ 18 years of age * Karnofsky Index ≥ 70 * Histological or radiological diagnosis of pelvic and groin recurrence * Contraindications for radical surgery * No other distant progression or stable disease (SD) of known secondarisms (≥6 months) * Previous radiation therapy on pelvis * Distance ≥ 10mm between tumour and close intestinal tract (small intestine), radiologically evaluated * Possibility to perform a surgery to space the intestinal loops, in case of distance \< 10mm * If needed, spacer in biocompatible material (silicon, goretex) or anatomical material (omentum, muscle patch), non-absorbable. * DICOM (Digital Imaging and COmmunications in Medicine) images of the previous treatment plan availability * Written informed consent * Patient's ability to understand the characteristics and consequences of the clinical trial

Exclusion criteria

* Hip prosthesis, metal prostheses or any other condition that prevents adequate imaging to identify the target volume and calculate the dose in the treatment plan * Intestinal infiltration * Bladder infiltration * Vessel infiltration * Previous therapy with anti-angiogenesis drugs * Psychic or other disorders that may prevent informed consent * Previous invasive tumor, with the exception of skin cancer (excluding melanoma) unless disease-free for at least 3 years * Spacer in absorbable material (i.e. vycril) * Distance \< 10mm between tumour and close intestinal tract (small intestine), radiologically evaluated * Impossibility to assess MRI

Design outcomes

Primary

MeasureTime frameDescription
progression disease1 year after treatmentVolume increase \> 73% of the initial volume.
complete response1 year after treatmentcomplete regression of the tumor lesion
partial response1 year after treatmentReduction of the tumor volume \> 65% of the initial volume
stable disease1 year after treatmentVolume between PR and PD
local control1 year after treatmentabsence of progression disease, in patients with lateral pelvic recurrences of gynecological malignancies

Secondary

MeasureTime frameDescription
Toxicity assessment according to CTCAE v. 51 year after treatmentTto define acute, intermediate and late toxicities according to Common Terminology Criteria for Adverse Events (CTCAE version 5.0)
Progression free survival1 year after treatmentProgression free survival (PFS) with qualitative evaluation as a narrative of progression
overall survival1 year after treatmentoverall survival

Countries

Italy

Contacts

Primary ContactAmelia Barcellini, MD
amelia.barcellini@cnao.it390382075501
Backup ContactCristina Bono, MSc
cristina.bono@cnao.it390382075613

Outcome results

None listed

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