About this trial
Impact of stimulation of parasympathetic activity by transcutaneous auricular vagus nerve stimulation (taVNS) on quality of life (QoL) relating to digestive symptoms in patients undergoing first-line treatment for ovarian cancer, as compared to shame taVNS
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patient ≥ 18 years old
ECOG 0-2
Histologically proven epithelial ovarian carcinoma
FIGO stage ≥ IIB
Disqualifiers
Patient with an active implantable medical device or any other implanted electronic or electrical device (pacemaker, defibrillator, etc.)
Dermatological problems in the area where stimulation electrodes are applied
Recent history (<2 years) of epileptic seizures
Proven severe cardiovascular disease (such as known FEV <40%, severe valvulpathy…) or HRV analysis not possible (such as uncontrolled atrial fibrillation)
Trial design
Parallel
Treatments tested in this trial
transcutaneous auricular vagus nerve stimulation
DeviceThe intervention begins on the first day of chemotherapy and continues daily until 21 days after the end of chemotherapy (6 cycles). The dispositive is used every day at home, twice daily (during 30 minutes)
Placebo device
DeviceThe intervention begins on the first day of chemotherapy and continues daily until 21 days after the end of chemotherapy (6 cycles). The dispositive is used every day at home, twice daily (during 30 minutes)
Treatment groups
Trial outcomes
Primary outcomes
assess the impact of stimulation of parasympathetic activity by transcutaneous auricular vagus nerve stimulation (taVNS) on quality of life (QoL) relating to digestive symptoms in patients undergoing first-line treatment for ovarian cancer, as compared t
Score of the QoL dimension relating to digestive symptoms according to the EORTC QLQ-OV28 self-questionnaire
Secondary outcomes
The evolution of heart rate variability (HRV) during chemotherapy between the 2 groups of patients
Heart Rate Variability (HRV) parameters through an electrocardiogram; as an exploratory complementary objective, for patients in Caen centres, HRV will also be measured using a Polar H10 type measuring device to determine two parameters SDDN and RMSSD
The safety profile
Adverse events with regards to the use of the device, according to NCI-CTCAE V5.0
The compliance with the use of the device
Number of daily taVNS stimulations and stimulation durations, taVNS (electrical) frequencies, according to ear device recordings
- The evolution of markers of inflammation (NLR, CRP, Albumin) during chemotherapy
\- Blood concentrations of inflammatory markers : Neutrophil to Lymphocyte Ratio (NLR), CRP, Albumin,
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