PROTECT: On-line Adaptive Proton Therapy for Cervical Cancer

NCT05406856RecruitingNAINTERVENTIONAL

Summary

Key Facts

Lead Sponsor

Leiden University Medical Center

Enrollment

30

Start Date

2022-05-02

Completion Date

2025-07-01

Study Type

INTERVENTIONAL

Official Title

PROTECT: On-line Adaptive Proton Therapy for Cervical Cancer to Reduce the Impact on Morbidity and the Immune System

Interventions

External beam radiation therapy: IMRT/VMATExternal beam radiation therapy: IMPTCisplatinBrachytherapy

Conditions

Uterine Cervical NeoplasmsLocally Advanced Cervical Carcinoma

Eligibility

Age Range

18 Years+

Sex

FEMALE

Inclusion Criteria:

* Histologically confirmed diagnosis of cervical cancer (squamous cell carcinoma, adenocarcinoma or adenosquamous carcinoma, HPV positive or negative) with an indication for curative treatment with primary chemoradiation with concurrent cisplatin followed by 3D image-guided adaptive brachytherapy.
* Indication to include the common iliac region (minimum 5, maximum 8) or the common iliac and para-aortic regions (minimum 7, maximum 10) into the elective clinical target volume of the external beam radiotherapy.
* No distant metastasis beyond the para-aortic lymph node chain as determined by diagnostic imaging (CT or PET-CT scan)
* Age ≥ 18 years
* WHO 0-1
* Adequate systemic organ function:

  * Creatinine clearance (\> 50 cc/min)
  * Adequate bone marrow function : white blood cells (WBCs) ≥3.0 x 109/l, neutrophils ≥1.5 x 109/l, platelets ≥100 x 109/l
* Patients must be accessible for treatment and follow-up
* Written informed consent according to the local Ethics Committee requirements

Exclusion Criteria:

* Small cell cancer, melanoma and other rare histological types of the cervix.
* History of another primary malignancy that could conceivably be active evaluated by the study physician. Examples of exception include, but are not limited to:

  * Malignancy treated with curative intent and with no known active disease ≥5 years.
  * Adequately treated non-melanoma skin cancer or lentigo maligna without evidence of disease.
* Other severe diseases such as recent myocardial infarction, clinical signs of cardiac failure or clinically significant arrhythmias
* Previous pelvic or abdominal radiotherapy
* History of active primary immunodeficiency
* Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease \[e.g. colitis or Crohn's disease\])
* The use of immunosuppressive drugs at baseline
* Contraindications for weekly Cisplatin (or Carboplatin)
* Contraindications for the use of MRI

Outcome Measures

Primary Outcomes

Dmean to the pelvic bones

Mean dose to the pelvic bones (Gy).

Time frame: During treatment

Mean V15Gy to the bowel

Mean volume of the bowel (cc) receiving 15Gy.

Time frame: During treatment

Secondary Outcomes

Key dosimetric parameters of the bladder

Mean volume of the bladder (%) receiving greater than or equal to 15, 30, and 40Gy.

Time frame: During treatment

Key dosimetric parameters of the rectum

Mean volume of the rectum (%) receiving greater than or equal to 15, 30, and 40Gy.

Time frame: During treatment

Key dosimetric parameters of the sigmoid

Mean volume of the sigmoid (%) receiving greater than or equal to 15, 30, and 40Gy.

Time frame: During treatment

Key dosimetric parameters of the bowel

Mean volume of the bowel (cc) receiving greater than or equal to 30 and 40Gy.

Time frame: During treatment

Key dosimetric parameters of the body

Mean dose to the body (Gy) and mean volume of the body (cm3) receiving greater than or equal to 10 Gy.

Time frame: During treatment

Key dosimetric parameters of the pelvic bones

Mean volume of the pelvic bones (% or cc) receiving greater than or equal to 10, 20, and 40Gy.

Time frame: During treatment

Key dosimetric parameter of the kidneys

Mean dose to the kidneys (Gy).

Time frame: During treatment

Key dosimetric parameters of the spinal cord

Mean volume of the spinal cord (%) receiving greater than or equal to 15 and 30Gy.

Time frame: During treatment

Other dosimetric parameters of critical organs

Mean volume of an organ at risk (% or cc) receiving greater than or equal to xGy.

Time frame: During treatment

Overall survival

The percentage (%) of included patients who are alive after start of treatment

Time frame: At Month 12 after end of treatment

Complete response

Absence of disease in the cervix, uterus, upper vagina, and parametria.

Time frame: At Month 3 after end of treatment

Pelvic recurrence-free survival

The time from start of treatment to the first occurrence of pelvic recurrence.

Time frame: At Month 12 after end of treatment

Distant recurrence-free survival

The time from start of treatment to the first occurrence of distant recurrence.

Time frame: At Month 12 after end of treatment

Health-related Quality of Life

For the evaluation of patient reported symptoms and QoL, the European Organization for Research and Treatment of Cancer (EORTC)-core (C-30) questionnaire, the CX24 module for cervical cancer, and six additional questions from EN24 module will be used.

Time frame: At baseline, week 4 of EBRT, end of treatment, and at Month 3, Month 6, Month 9, and Month 12 after end of treatment

Safety and tolerability (toxicity)

Toxicity will be graded according to the NCI-CTCAE version 5.0.

Time frame: At baseline, week 4 of EBRT, end of treatment, and at Month 3, Month 6, Month 9, and Month 12 after end of treatment

The effect on the local immune system (analyzed with the Nanostring PanCancer IO 360 panel)

Tumor biopsies will be collected for evaluation of the impact of treatment on the local immune response.

Time frame: At baseline and at the first brachytherapy session

The effect on the systemic immune system

Blood samples will be collected for immune-monitoring. Full blood count, peripheral blood mononuclear cells, leukocyte differentiation, APC quality, T cell reactivity, and immune composition changes will be measured.

Time frame: At baseline, week 4 of treatment, and at Month 1, Month 2, Month 3, and Month 12 after end of treatment

The effect on bone marrow fat fraction

Patients will have an MR scan with Dixon technique for evaluation of bone marrow fat fraction in the vertebral column and femoral necks.

Time frame: At baseline, for brachytherapy purposes, and at Month 3 and Month 12 after end of treatment.

Locations

Leiden University Medical Center, Leiden, Netherlands

Erasmus Medical Center, Rotterdam, Netherlands

PROTECT: On-line Adaptive Proton Therapy for Cervical Cancer