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CTRI Number  CTRI/2025/07/091875 [Registered on: 28/07/2025] Trial Registered Prospectively
Last Modified On: 03/10/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Single Arm Study 
Public Title of Study   Testing the safety and effectiveness of teeth whitening strips over 2 weeks. 
Scientific Title of Study   A clinical study to evaluate the efficacy and safety of test product in providing teeth whitening benefits over 2 weeks  
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
ORAL/PFWS/2025-01 version 1.0 dated 25 Jun 2025  Protocol Number 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Lakshmi Chandrasekaran  
Designation  Principal Investigator  
Affiliation  MS Clinical Research Pvt. Ltd  
Address  327/15,1st Main Road, Cambridge layout, Ulsoor

Bangalore
KARNATAKA
560008
India 
Phone  08040917253  
Fax    
Email  kaavya.sekar@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Ritambhara 
Designation  Director- Business and operations 
Affiliation  MS Clinical Research Pvt. Ltd. 
Address  327/15, 1st Main Road, Cambridge layout, Ulsoor

Bangalore
KARNATAKA
560008
India 
Phone  09080826918  
Fax    
Email  ritambhara@msclinical.com  
 
Details of Contact Person
Public Query
 
Name  Sudhanthiran S 
Designation  manager- Techno commercial 
Affiliation  MS Clinical Research Pvt. Ltd  
Address  327/15,1st Main Road, Cambridge layout, Ulsoor

Bangalore
KARNATAKA
560008
India 
Phone  09952700028  
Fax    
Email  sudhan@msclinical.com  
 
Source of Monetary or Material Support  
Chipper Consumer Pvt. Ltd. 
 
Primary Sponsor  
Name  Chipper Consumer Pvt. Ltd. 
Address  Plot No. 250, 3rd Floor, Lynx House, Udyog Viha 
Type of Sponsor  Other [FMCG] 
 
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 Lakshmi Chandrasekaran  MS Clinical Research Pvt. Ltd.  327/15, 1st Main Road, Cambridge layout Ulsoor,
Bangalore
KARNATAKA 
08040917253

kaavya.sekar@gmail.com 
 
Details of Ethics Committee
Modification(s)  
No of Ethics Committees= 2  
Name of Committee  Approval Status 
ACE INDEPENDENT ETHICS COMMITTEE  Approved 
ACE INDEPENDENT ETHICS COMMITTEE  Not Applicable 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  MALE AND FEMALE HEALTH VOLUNTEERS 
Patients  (1) ICD-10 Condition: K036||Deposits [accretions] on teeth,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Not applicable  Not applicable 
Intervention  Purple Magic whitening strips   Frequency: once daily Duration: for 14 days Usage details: Remove the strip from the sachet using dry hands. Wet your teeth with your tongue. Firmly apply the strip (either side) to the teeth, positioning it just below the gumline. Fold any excess behind the teeth and lick the strip to prevent it from sticking to the lip. Repeat the process for the lower teeth. The strips will dissolve in approximately 10 minutes. Each packet contains 1 strip hence 2 sachet per trial participant per use (for upper and lower arch)  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  50.00 Year(s)
Gender  Both 
Details  1. Male or female subjects aged 18–50 years.
2. Willing and able to comply with study procedures.
3. Provide signed informed consent.
4. Subjects having all anterior tooth.
 
 
ExclusionCriteria 
Details  1. Trial participants having received professional scaling or bleaching treatment
or having used over-the-counter teeth whitening products within one month of
baseline visit.
2. Participants with A1, B1 and C1 tooth shades.
3. Individuals with any pre-existing dental conditions that could influence
whitening outcomes or compromise safety (tetracycline stains, fluorosis etc.)
4. Trial participants with sensitive tooth.
5. Trial participant with intrinsic stains.
6. Trial participants having periapical lesion, cavities, periapical lesion, rcts,
periodontitis, or any other conditions that may affect the study as per
investigators discretion.
7. Trial participants having prosthetic crowns or bridges on anterior part or any
other prosthetic tooth replacement.
8. Trial participants having ortho treatment or wearing braces.
9. Trial participants using whitening toothpaste.
10. Female Trial participants who are pregnant, lactating or nursing (self
declared).
11. Trial participants with any diseases or conditions that might interfere with the safe participation in the study.
12. Trial participants unable to undergo study procedures.
13. The trial participant is an employee of the Sponsor or the site conducting the study. 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Case Record Numbers 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
1. Change in tooth shade from baseline as measured by the Linear shade guide using visual assessment by a dental professional.
2. Change in tooth shade from baseline, as measured by the VITA Easyshade® V.
 
Days 1, 3, 5, 7, and 14 
 
Secondary Outcome  
Outcome  TimePoints 
To evaluate participant-perceived changes in tooth whiteness using a self-assessment questionnaire at all study time points.
 
Days 1, 3, 5, 7, and 14 
To evaluate overall participant satisfaction with the product based on responses collected through a standardized self-assessment questionnaire across all time points.  Days 1, 3, 5, 7, and 14 
To evaluate the perceived impact of the purple tint, including reduction in visible yellowness, concealment of stains, and immediate brightness enhancement, using participant responses collected through self-assessment questionnaires at each time point.  Days 1, 3, 5, 7, and 14 
To evaluate the usability and ease of use of the product, including clarity of instructions, convenience of application, and user-friendliness, through participant feedback collected at all time points.  Days 1, 3, 5, 7, and 14 
To evaluate the sensory experience of the product, including taste, comfort during application, and dissolution rate, using responses from a sensory feedback questionnaire.  Days 1, 3, 5, 7, and 14 
To evaluate product palatability based on participant ratings collected through self-assessment questionnaires at multiple time points.  Days 1, 3, 5, 7, and 14 
To evaluate the sensitivity of the tooth by self-perceived questionnaire.  Days 1, 3, 5, 7, and 14 
Incidence of adverse oral events such as gum irritation, oral lesions, or discomfort observed during Oral Soft and hard tissue Tissue exams at each study visit.  Days 1, 3, 5, 7, and 14 
Investigator assessments of the product’s overall tolerability throughout the study period.  Days 1, 3, 5, 7, and 14 
Participant assessments of the product’s overall tolerability throughout the study period.  Days 1, 3, 5, 7, and 14 
 
Target Sample Size   Total Sample Size="35"
Sample Size from India="35" 
Final Enrollment numbers achieved (Total)= "0"
Final Enrollment numbers achieved (India)="35" 
Phase of Trial   Phase 1/ Phase 2 
Date of First Enrollment (India)   09/08/2025 
Date of Study Completion (India) 20/08/2025 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="0"
Months="0"
Days="14" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details
Modification(s)  
• Significant improvement in tooth lightness, with reductions in redness, yellowness, and saturation, along with an increase in hue angle. • Shade guide evaluation (VITA Linear Shade Guide) demonstrated an overall whitening effect, with a mean cumulative improvement of 5.94 units for the upper tooth (34) and 5.03 units for the lower tooth (33) from baseline to study end. • Participants reported perceivable improvement in tooth whiteness, high satisfaction with cosmetic effect, reduction in visible yellowness, instant brightness enhancement, and concealment of stains. The product was easy to use, with favourable palatability and dissolution time. High likelihood of future use was reported. Tooth sensitivity remained absent or mild, with no severe cases. There was no SAE/AE associated with this trial.  
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary
Modification(s)  

This monocentric, comparative efficacy and safety study evaluates a novel dissolvable whitening strip designed to reduce surface stains and enhance tooth whiteness. The study aims to assess both clinical (objective) and user-reported (subjective) improvements in tooth shade, identify the onset of visible results, evaluate oral safety (including sensitivity or irritation), and gather detailed user feedback over 14 days. Participants will undergo screening, consent, and baseline assessments, including tooth shade evaluations, oral examinations, and questionnaires. Oral assessments, shade measurements, and feedback collection will be repeated at each visit, with compliance tracked through subject diaries. The final visit includes end-of-study evaluations and completion of the exit form.

 
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