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CTRI Number  CTRI/2025/07/091513 [Registered on: 23/07/2025] Trial Registered Prospectively
Last Modified On: 22/07/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Medical Device 
Study Design  Other 
Public Title of Study   A study comparing Cold and Vibration to reduce Pain during Injections for hair loss 
Scientific Title of Study   Efficacy of cold vs vibratory analgesia for pain relief in Platelet-Rich Plasma therapy: a randomized split scalp study 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Rudrani Mukherjee 
Designation  Junior Resident, MD Dermatology 
Affiliation  Kasturba Medical College Manipal 
Address  Room no. 21, OPD Block, Department of Dermatology, Kasturba Medical College, Manipal

Udupi
KARNATAKA
576104
India 
Phone  9836863999  
Fax    
Email  rudranimukherjee1@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Mihika Noronha 
Designation  Senior Resident 
Affiliation  Kasturba Medical College Manipal 
Address  Room no. 21, OPD Block, Department of Dermatology, Kasturba Medical College, Manipal

Udupi
KARNATAKA
576104
India 
Phone  8105045938  
Fax    
Email  mihika.noronha@manipal.edu  
 
Details of Contact Person
Public Query
 
Name  Dr Mihika Noronha 
Designation  Senior Resident 
Affiliation  Kasturba Medical College Manipal 
Address  Room no. 21, OPD Block, Department of Dermatology, Kasturba Medical College, Manipal

Udupi
KARNATAKA
576104
India 
Phone  8105045938  
Fax    
Email  mihika.noronha@manipal.edu  
 
Source of Monetary or Material Support  
Kasturba Medical College Madhavnagar (Madhava Nagar), Manipal – 576104 Udupi District, Karnataka, India 
 
Primary Sponsor  
Name  Dr Rudrani Mukherjee 
Address  Room no. 21, OPD Block, Department of Dermatology, Kasturba Medical College, Manipal-576104, Karnataka, India 
Type of Sponsor  Other [Self] 
 
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 Rudrani Mukherjee  Kasturba Hospital  Room no. 21, OPD Block, Department of Dermatology, Kasturba Medical College, Manipal
Udupi
KARNATAKA 
9836863999

rudranimukherjee1@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Kasturba Medical College and Kasturba Hospital Institutional Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: L649||Androgenic alopecia, unspecified, (2) ICD-10 Condition: L650||Telogen effluvium,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Ice pack (cold analgesia)  Ice pack will be applied with gentle pressure on the injection site of the scalp for 2–3 seconds prior to each injection. 
Intervention  Kinetic Anaesthetic Device (vibratory analgesia)  Kinetic Anaesthetic Device will be covered with a disposable, sterile plastic film and applied 2 cm from the scalp injection site before PRP administration. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  1. People aged 18 years or more than 18 years undergoing scalp Platelet Rich Plasma therapy
2. Willingness to receive either cold therapy or vibratory analgesia as a pain management technique during PRP
3. Intact scalp sensation
4. Ability to provide informed consent and comply with study protocols, including pain assessments 
 
ExclusionCriteria 
Details  1. Contraindications to cold therapy including previous history of Raynaud’s disease or phenomenon, cold urticaria, cryoglobulinemia
2. Use of systemic or local analgesics, anesthetics, or sedatives within 24 hours before PRP injection
3. Neurological disorders affecting scalp sensation including scalp neuropathy, trigeminal neuralgia
4. Active scalp infections
5. Pregnant or lactating patients
6. Cognitive impairment, psychiatric disorders, or communication barriers preventing accurate pain reporting 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   On-site computer system 
Blinding/Masking   Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Comparison between mean Pain Scores using the Visual Analogue Scale of Cold versus Vibratory analgesia during PRP  6 months 
 
Secondary Outcome  
Outcome  TimePoints 
Assessment and comparison of mean Ease of Administration Scores using the Likert Scale for Cold versus Vibratory analgesia during PRP  6 months 
 
Target Sample Size   Total Sample Size="52"
Sample Size from India="52" 
Final Enrollment numbers achieved (Total)= "52"
Final Enrollment numbers achieved (India)="52" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   04/08/2025 
Date of Study Completion (India) 16/01/2026 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="0"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
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  

This randomized, split-scalp clinical trial aims to compare the analgesic efficacy of cold versus vibratory analgesia during platelet-rich plasma (PRP) injections over the scalp for conditions including androgenetic alopecia, telogen effluvium. Fifty-two adult patients undergoing PRP as a standard of care, will receive 2 different analgesia methods - cold analgesia (ice pack) on one half of the scalp and vibratory analgesia using a kinetic anesthetic device (KAD) on the other. Side allocation will be randomized using a computer-generated list, with allocation concealed and the statistician blinded to the intervention.

Pain will be measured immediately after each side using a Visual Analogue Scale (VAS), and ease of administration will be assessed by the performing dermatology residents using a structured Ease of Administration questionnaire. Statistical analysis will include paired t-tests for continuous variables and McNemar’s test for categorical outcomes.

The study is designed to evaluate both patient-reported pain relief and clinician-reported feasibility of each analgesic method. Risk mitigation includes immediate discontinuation of the analgesic method if adverse reactions occur, with symptomatic management provided. Results will inform evidence-based, non-pharmacological pain management during PRP therapy.

 
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