Breathlessness Patterns in Patients With Cancer, COPD and Heart Failure: an fMRI Feasibility Study

Summary

Dyspnea that persists despite optimal pathophysiological treatment is defined as persistent dyspnea.

Currently all brain functional magnetic resonance imaging (fMRI) studies conducted to evaluate breathlessness have done so using healthy volunteers or have concentrated on acute breathlessness. Little is known about chronic breathlessness patterns and their modulation by different triggers. Furthermore, it is currently assumed in the palliative care literature that patients suffering from different advanced and progressive diseases such as cancer, heart failure (HF) or chronic obstructive pulmonary disease (COPD) have the same triggers, perceptions and neurological pathways and thus require the same treatments/interventions (i.e. opioids as first line symptomatic pharmacologic treatment). However, it is now known that patients belonging to different disease groups do not necessarily benefit from opioids.

Aim of the study To assess the feasibility of identifying dyspnea patterns in different life-limiting conditions and to evaluate the effect of immersive virtual reality (IVR) on dyspnea using patient-reported-outcomes (PROMs).

Study procedure:

Patients with advanced chronic diseases such as cancer, COPD or HF suffering from dyspnea will undergo a brain fMRI in combination with an IVR intervention. The fMRI data will be reviewed to identify different patterns of dyspnea and the effect of IVR on dyspnea will be assessed through PROMs. Patients will be asked about the perceived burden of the study.

Conditions

• Chronic Obstructive Pulmonary Disease (COPD)
• Heart Failure
• Cancer
• Volunteers

Interventions

OTHER

Cerebral fMRI

Neuroimaging data will be collected using a 3T Siemens Prisma MRI scanner (Prisma; Siemens, Erlangen, Germany) equipped with a 64-channel head coil. Functional T2\*-weighted images will be acquired during the resting-state protocol. The sequences used will be gradient-echo planar imaging. Additionally, a single-band reference volume will be obtained prior to the functional acquisition, using the same parameters but without multiband (MB) acceleration, to assist in functional realignment and masking. A whole-brain T1-weighted multi-echo MPRAGE scan will also be performed with 1 mm isotropic resolution. three echo images were combined using the root-mean-square method.

OTHER

Immersive virtual reality

In collaboration with HypnoVR (HypnoVR, Strasbourg, France), patients will subsequently be provided with a visual immersion in a virtual world along with a scripted hypnotic voice track. HypnoVR's solution is certified as a medical device and has been studied in various medical contexts. The program will be adapted to run on its own dedicated PC instead of a (non-MRI compatible) HMD. As described in this protocol, the PL and the patients can select from a predefined set of virtual environments and choose the preferred voice-over script.

Sponsors & Collaborators

• University Hospital, Geneva

  lead OTHER

Principal Investigators

• Lisa Hentsch, Dr med · University Hospital, Geneva

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2025-08-26

Primary Completion

2027-03-01

Completion

2027-03-01

Countries

• Switzerland

Study Locations