Effects of Controlled Breathing Added to Therapeutic Exercise in Multiple Myeloma

January 15, 2026 updated by: Isidro Fernández López, Universidad Complutense de Madrid

Effects of Adding a Controlled Breathing Protocol to a Therapeutic Exercise Program in Adults With Multiple Myeloma

A randomized, parallel, double-blind, controlled, multicenter clinical trial with two intervention arms. Two groups of participants will be included, both receiving a therapeutic exercise intervention and an educational session on the importance of proper breathing over a 6-week period. One of the groups will additionally perform a home-based controlled breathing exercise protocol. Pre- and post-intervention assessments (6 weeks) will be conducted, along with a follow-up evaluation 4 weeks after completion of the intervention.

The goal is to determine the effectiveness of adding a controlled breathing exercise program to a therapeutic exercise intervention on somatic symptoms in individuals with multiple myeloma

Study Overview

Detailed Description

Randomized, parallel, double-blind, controlled clinical trial in which two groups of participants will be included and randomly assigned to one of the two intervention arms:

Therapeutic exercise + initial educational session on proper breathing.

Therapeutic exercise + initial educational session on proper breathing + home-based controlled breathing exercise protocol.

The therapeutic exercise and controlled breathing program will last 6 weeks. During this period, participants will:

Perform three weekly sessions of mobility and muscle-strengthening exercises (two on-site and one home-based) for 6 weeks. The on-site sessions will last between 30 and 40 minutes and will take place at the Rehabilitation Department of Hospital 12 de Octubre in Madrid (a total of 12 on-site sessions-two per week). The home-based exercise program will consist of completing, once per week during the 6-week intervention, a structured session that replicates the logic and technique of the on-site program.

Walk a minimum of 7,000 steps/day or 50 minutes/day, three days per week.

Perform a controlled breathing protocol twice per day at home during the 6-week study period, following the recommendations of the principal investigator. The goal is to integrate slow, gentle, diaphragmatic, nasal breathing into daily life.

The variables to be assessed will include: somatic symptom questionnaire, quality of life, sleep quality, fatigue, anxiety and depression symptoms.

These variables will be evaluated at baseline, at the end of the 6-week intervention period, and again 4 weeks after completing the intervention.

Study Type

Interventional

Enrollment (Estimated)

32

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Isidro Fernández-López, PhD
  • Phone Number: +34625598970
  • Email: isidrofe@ucm.es

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥ 18 years.
  • Confirmed diagnosis of multiple myeloma, currently undergoing active treatment with daratumumab, and under clinical follow-up by the Hematology Department of HU12O.
  • Explicit medical indication for supervised physical activity issued by the responsible hematologist and documented in the medical record.
  • No scheduled hematopoietic stem cell transplantation within the 60 days following the planned start date of the intervention (verified through medical record review).
  • Functional status of ECOG 0-2 (Eastern Cooperative Oncology Group), assessed by a healthcare professional from the Hematology Department, ensuring the ability to perform at least basic and light instrumental activities of daily living, including independent ambulation.
  • Access to a smartphone with stable internet connection, required for monitoring and recording adherence to the intervention.
  • Ability to provide written informed consent, demonstrating understanding of the study's nature, purpose, and procedures.

Exclusion Criteria:

  • Medical risk contraindicating exercise or breathing techniques:

    +Clinically significant cardiovascular disease, including: decompensated heart failure, acute myocardial infarction within the past 3 months, clinically uncontrolled arrhythmias, unstable angina, acute-phase deep vein thrombosis or pulmonary embolism, pacemakers or cardiac devices whose monitoring parameters contraindicate supervised exercise according to cardiology.

    • Severe decompensated respiratory disease, such as acute exacerbation of COPD, severe respiratory insufficiency, or persistently low resting oxygen saturation < 90% (not correctable).
  • High musculoskeletal or bone risk:

    • Extensive lytic bone lesions, high risk of pathological fracture, or unstable vertebral fracture, documented by imaging or based on the assessment of the Hematology/Traumatology specialist.
    • Uncontrolled pain that prevents safe participation in an exercise program.
  • Hematologic or systemic conditions contraindicating exercise:

    • Severe anemia: hemoglobin < 9 g/dL in women or < 8 g/dL in men (latest laboratory test ≤ 14 days).
    • Active systemic infection contraindicating exercise, fever ≥ 38 °C, or neutropenia < 0.5 × 10⁹/L.
    • Severe cytopenias that, in the opinion of the hematologist, preclude moderate exercise.
  • Functional or procedural limitations:

    • Inability to remain in the supine position for ≥ 5 minutes, required for part of the breathing intervention.
    • Confirmed pregnancy or reasonable suspicion of pregnancy.
    • Severe cognitive impairment, major psychiatric disorders, or neurological diseases that limit understanding of the procedures or safe participation.
    • Significant difficulty understanding the language (spoken or written) that prevents following essential instructions or completing validated questionnaires.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Therapeutic exercise + initial educational session on proper breathing
  • Perform three weekly sessions of mobility and muscle-strengthening exercises (two on-site and one home-based) for 6 weeks. The home-based exercise program will consist of completing, once per week during the 6-week intervention, a structured session that replicates the logic and technique of the on-site program.
  • Walk a minimum of 7,000 steps/day or 50 minutes/day, three days per week.
  • To promote adherence to the protocol and standardize basic knowledge regarding the breathing technique, all participants will receive an initial educational session delivered on the first day of the on-site intervention. This session will include an introductory lecture and an explanatory leaflet outlining the fundamental principles of functional breathing and its relevance to the intervention.

In addition to the therapeutic exercise protocol and the educational session on proper breathing, participants will perform:

-Three weekly sessions of mobility and muscle-strengthening exercises (two on-site and one home-based) for 6 weeks. The on-site sessions will last between 30 and 40 minutes and will take place at the Rehabilitation Department of Hospital 12 de Octubre in Madrid (a total of 12 on-site sessions-two per week). The home-based exercise program will consist of completing, once per week during the 6-week intervention, a structured session that replicates the logic and technique of the on-site program.

A maximum of four absences from the on-site therapeutic exercise program will be allowed, and on those occasions the patient must register via the web application that they completed the prescribed home-based program.

-Walk a minimum of 7,000 steps/day or 50 minutes/day, three days per week.

Other Names:
  • therapeutic exercise
  • educational session on proper breathing
Experimental: Therapeutic exercise + initial education session + home-based controlled breathing exercise protocol
  • Participants will perform a controlled breathing protocol at home twice daily, at least five days per week, throughout the 6-week study period, following the recommendations of the principal investigator.
  • Perform three weekly sessions of mobility and muscle-strengthening exercises (two on-site and one home-based) for 6 weeks. The home-based exercise program will consist of completing, once per week during the 6-week intervention, a structured session that replicates the logic and technique of the on-site program.
  • Walk a minimum of 7,000 steps/day or 50 minutes/day, three days per week.
  • To promote adherence to the protocol and standardize basic knowledge regarding the breathing technique, all participants will receive an initial educational session delivered on the first day of the on-site intervention. This session will include an introductory lecture and an explanatory leaflet outlining the fundamental principles of functional breathing and its relevance to the intervention.

In addition to the therapeutic exercise protocol and the educational session on proper breathing, participants will perform a controlled breathing protocol at home twice daily, at least five days per week, throughout the 6-week study period, following the recommendations of the principal investigator. The goal is to integrate slow, gentle, diaphragmatic, nasal breathing into daily life.

To promote adherence and ensure correct and consistent execution, participants will have access through the Web-App to two audio files containing guided breathing instructions and visualization exercises. These recordings were specifically developed for this project by a physiotherapist with more than 20 years of experience in respiratory control-based interventions, and were reviewed and approved by the entire research team.

Other Names:
  • Therapeutic exercise
  • educational session on proper breathing

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Somatic Symptom Questionnaire
Time Frame: Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.
The PHQ-15 will be used to assess the number of somatic symptoms and the degree of distress experienced during the past four weeks. Cancer survivors with a greater number of somatic symptoms tend to report higher levels of stress, partly due to increased fear of disease recurrence or progressio
Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Global quality of life
Time Frame: Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.
Global quality of life will be assessed using the EORTC-QLQ C30 Version 3.0 questionnaire, developed by the European Organization for Research and Treatment of Cancer (EORTC), a cancer-specific instrument that has been extensively validated in both its English and Spanish versions
Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.
Sleep Quality Questionnaire
Time Frame: Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.
The Pittsburgh Sleep Quality Index (PSQI) will be used in its validated Spanish version, which provides a global sleep quality score as well as partial scores across seven distinct components
Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.
Anxiety and Depression Scale
Time Frame: Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.
The Hospital Anxiety and Depression Scale (HADS) will be used to assess these symptoms among study participants. This screening instrument has been widely used and validated as a brief tool for detecting depressive and anxiety symptoms in oncology patients
Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Fatigue
Time Frame: Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.
The Brief Fatigue Inventory (BFI) will be used to assess fatigue; it is a reliable instrument that allows for rapid evaluation of fatigue levels in cancer patients, and its Spanish version has also been validated
Information for this variable will be collected at three time points: at baseline, at the end of the intervention (6 weeks), and four weeks after completion of the protocol.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Gustavo Plaza-Manzano, PhD, Department of Physiotherapy, Faculty of Nursing, Physiotherapy and Podiatry. Universidad Complutense de Madrid

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

January 1, 2026

Primary Completion (Estimated)

May 1, 2026

Study Completion (Estimated)

July 1, 2026

Study Registration Dates

First Submitted

December 17, 2025

First Submitted That Met QC Criteria

December 17, 2025

First Posted (Estimated)

December 31, 2025

Study Record Updates

Last Update Posted (Actual)

January 20, 2026

Last Update Submitted That Met QC Criteria

January 15, 2026

Last Verified

January 1, 2026

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Multiple Myeloma

Clinical Trials on Therapeutic exercise + initial education session

Subscribe