NCT07470619

Brief Summary

This randomized clinical trial aimed to evaluate the effectiveness of Twin Hearts Meditation in reducing chemotherapy-induced nausea and vomiting among women with breast cancer undergoing chemotherapy. Chemotherapy-related nausea and vomiting are among the most distressing side effects of cancer treatment and can negatively affect patients' quality of life, nutritional status, and adherence to therapy. The study focused on whether regular practice of this meditation technique could significantly reduce the severity of nausea and the frequency of vomiting episodes following chemotherapy. The main research questions were: Does Twin Hearts Meditation reduce chemotherapy-induced nausea and vomiting among women with breast cancer? Can this complementary and non-invasive intervention be considered a supportive strategy for managing chemotherapy-related symptoms? Participants were randomly assigned to either the intervention group, which practiced Twin Hearts Meditation, or the control group, which received routine care without meditation. The intervention group received a 30-minute guided meditation training session and practiced the meditation three times per week for two weeks. Nausea severity and vomiting episodes were assessed using a nausea severity scale and a vomiting record flow sheet at baseline and at 6, 12, 18, and 24 hours after chemotherapy to evaluate the effectiveness of the intervention.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
102

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jun 2016

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 15, 2016

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 15, 2016

Completed
15 days until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2016

Completed
9.7 years until next milestone

First Submitted

Initial submission to the registry

March 9, 2026

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 13, 2026

Completed
Last Updated

March 13, 2026

Status Verified

March 1, 2026

Enrollment Period

Same day

First QC Date

March 9, 2026

Last Update Submit

March 10, 2026

Conditions

Keywords

Breast NeoplasmsMeditationNursing CareNausea

Outcome Measures

Primary Outcomes (1)

  • Nausea Severity

    The primary outcome measure evaluates changes in the severity of chemotherapy-induced nausea among women with breast cancer undergoing chemotherapy. Nausea severity is assessed using a Visual Self-Reporting Nausea Scale, scored from 0 to 10, where 0 indicates no nausea and 10 indicates the most severe nausea. Higher scores indicate greater nausea severity

    Nausea severity is assessed at 6, 12, 18, and 24 hours after chemotherapy

Secondary Outcomes (1)

  • Frequency of Vomiting Episodes

    Vomiting frequency is assessed at 6, 12, 18, and 24 hours after chemotherapy

Study Arms (2)

Twin Hearts Meditation

EXPERIMENTAL

Behavioral: Twin Hearts Meditation Participants in this group receive Twin Hearts Meditation, a structured mind-body relaxation technique designed to promote emotional balance and psychological well-being. The intervention aims to reduce chemotherapy-induced nausea and vomiting by promoting relaxation, stress reduction, and improved emotional regulation in women with breast cancer undergoing chemotherapy

Behavioral: Twin Heart Meditation

Routine Care

NO INTERVENTION

Participants in the control group received routine clinical care during chemotherapy and did not receive any additional behavioral intervention during the study period.

Interventions

Participants in this group received Twin Hearts Meditation, a structured mind-body relaxation technique designed to promote emotional balance and psychological well-being. The intervention included a supervised 30-minute guided meditation session provided by a trained researcher in the chemotherapy unit. Participants were then instructed to continue the meditation practice at home for 30 minutes per session, at least three times per week for two weeks using an audio recording provided by the researcher. The meditation protocol included the following steps: * Light physical warm-up exercises to promote relaxation * Focused attention on positive emotions such as compassion and calmness * Guided meditation to promote mental relaxation and emotional balance * Silent concentration on a repeated phrase * Expression of gratitude * Closing relaxation exercises Regular telephone follow-up was conducted during the intervention period to support adherence to the meditation practice.

Twin Hearts Meditation

Eligibility Criteria

Age18 Years - 65 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women aged 18-65 years diagnosed with non-metastatic breast cancer.
  • Patients undergoing chemotherapy using standard chemotherapy regimens in the oncology unit.
  • Patients who had experienced nausea during at least one previous chemotherapy session.
  • Patients who voluntarily agreed to participate in the study and provided written informed consent

You may not qualify if:

  • Performing meditation fewer than three times per week during the intervention period.
  • Unwillingness to continue participation in the study.
  • Presence of medical conditions that may independently cause nausea, such as severe gastrointestinal disease, renal failure, or hepatic disease.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Unknown Facility

Nicosia, KKTC (Turkish Republic of Northern Cyprus), 99138, Cyprus

Location

MeSH Terms

Conditions

NauseaBreast Neoplasms

Condition Hierarchy (Ancestors)

Signs and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and SymptomsNeoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
To minimize bias, a single-blind approach was used. The researcher responsible for outcome assessment and data collection was unaware of group allocation. In addition, the statistician who performed the data analysis was blinded to group assignments. The data were analyzed using coded variables (X1 and X2) to maintain objectivity and prevent bias during statistical analysis.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Participants were randomly allocated to one of two study arms: an experimental group receiving the Twin Hearts Meditation intervention and a control group receiving routine care. Both groups were observed and evaluated in parallel during the study period.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD in Pediatric Nursing, Department of Nursing, Faculty of Health Science, Cyprus International University,

Study Record Dates

First Submitted

March 9, 2026

First Posted

March 13, 2026

Study Start

June 15, 2016

Primary Completion

June 15, 2016

Study Completion

June 30, 2016

Last Updated

March 13, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

There is no plan to make IPD available to other researchers

Locations