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CTRI Number  CTRI/2026/04/108925 [Registered on: 21/04/2026] Trial Registered Prospectively
Last Modified On: 04/08/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Other (Specify) [Biofeedback]  
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   "Effect of single session of breathing-based heart control training on body autonomic functions and thinking ability in people with opioid addiction." 
Scientific Title of Study   Effect of single session heart rate variability biofeedback on autonomic and cognitive function in patients with opioid use disorder: A pilot study 
Trial Acronym  HRV-OUD 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Akanksha Singh 
Designation  Additional Professor 
Affiliation  All India Institute of Medical Sciences 
Address  2026A, Teaching block, Department of Physiology, AIIMS, New Delhi

South
DELHI
110029
India 
Phone  8377933797  
Fax    
Email  drakanksha111@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Ritesh 
Designation  MSc. Student 
Affiliation  All India Institute of Medical Sciences 
Address  2026A, Teaching block, Department of Physiology, AIIMS, New Delhi

South
DELHI
110029
India 
Phone  7206012597  
Fax    
Email  riteshgupta72060@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Akanksha Singh 
Designation  Additional Professor 
Affiliation  All India Institute of Medical Sciences 
Address  2026A, Teaching block, Department of Physiology, AIIMS, New Delhi

South
DELHI
110029
India 
Phone  8377933797  
Fax    
Email  drakanksha111@gmail.com  
 
Source of Monetary or Material Support  
All India Institute of Medical Sciences, New Delhi, INDIA -110029 
 
Primary Sponsor  
Name  AIIMS 
Address  All India Institute of Medical Sciences (AIIMS), Ansari Nagar, NEW DELHI-110029, INDIA 
Type of Sponsor  Research institution 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Akanksha SIngh  All India Institute of Medical Sciences  Biofeedback Clinic, Room no. 2050, Department of Physiology, 2nd Floor, Teaching Block, AIIMS, Ansari NAgar, New Delhi - 110029
South
DELHI 
8377933797

drakanksha111@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Ethics Committee for Post Graduate Research  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  ,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Control Group  Participants in this group will undergo single session of quiet sitting with regular breathing for 20 minutes.  
Intervention  HRV Biofeedback  Participants will receive single session of HRV Biofeedback of 20 minutes. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Male 
Details  1. Subjects with addictive disorders for duration of at least 12 months as diagnosed by DSM-5 criteria
2. less than 7 days of initiation of buprenorphine therapy
3. Right-handed subjects
4. Subject able to perform computer task.
5. Could give informed consent.
 
 
ExclusionCriteria 
Details  1. H/o any psychiatric disease other than substance related and addictive disorder
2. H/o any neurological disorder
3. Chronic physical illnesses (excluded based on clinical history)
4. HIV seropositivity
5. H/o colour blindness
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   On-site computer system 
Blinding/Masking   Participant Blinded 
Primary Outcome  
Outcome  TimePoints 
HF, LF, LF/HF ratio  2 time points:
1. At baseline
2. Immediately after the HRV biofeedback seesion/control quiet sitting session.  
 
Secondary Outcome  
Outcome  TimePoints 
NIL  NIL 
 
Target Sample Size   Total Sample Size="30"
Sample Size from India="30" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 1/ Phase 2 
Date of First Enrollment (India)   14/05/2026 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  
OUD is characterized by dysregulation of the brain’s reward system, including the mesolimbic dopamine pathway, prefrontal cortex, and amygdala. Its association with maladaptive neuromodulation affecting executive function, emotional regulation, and stress responses, contributes to disease pathophysiological features like craving, relapse and cognitive effects. Studies show positive correlation between stressful life events and high probability of relapse, highlighting the need for stress management techniques that can address the need based acute management of stress at the incidence of high stress life events. Studies have shown that HRV Biofeedback can reduce stress and improve emotional and cognitive functions in healthy subjects.Therefore, the present pilot randomized controlled trial is planned to study the effect of single session HRV Biofeedback training on the autonomic and cognitive function, stress, craving and withdrawal in patients of OUD during early agonist detoxification. The results of the present study can be useful in the determining the role of HRV Biofeedback as an adjunct to the main treatment strategy to support recovery by helping acute management of stressful life events which otherwise are the precipitators of relapse.
 
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