FULL DETAILS (Read-only)  -> Click Here to Create PDF for Current Dataset of Trial
CTRI Number  CTRI/2025/10/095538 [Registered on: 01/10/2025] Trial Registered Prospectively
Last Modified On: 30/09/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Other (Specify) [Safety, Efficacy Study]  
Study Design  Single Arm Study 
Public Title of Study   Clinical Safety and Efficacy Study of Teeth Whitening Toothpaste in Healthy Adult Subjects 
Scientific Title of Study   An Open-Label, Single-Arm, Single-Centre, Prospective, Interventional Clinical Study to Evaluate the Safety and Efficacy of a Teeth Whitening Toothpaste in Healthy Adults with A2 or Darker Tooth Colour. 
Trial Acronym  SPARK 
Secondary IDs if Any  
Secondary ID  Identifier 
NB250040-DUAE_1.0_22Sep25  Protocol Number 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Darshan Patel  
Designation  Principal Investigator 
Affiliation  NovoBliss Research Private Limited 
Address  NovoBliss Research Pvt. Ltd. 313, Silver Radiance-4, Gota, Ahmedabad, Gujarat, India - 382481
NovoBliss Research Pvt. Ltd. Office# 313, Silver Radiance-4, Gota,Ahmedabad Ahmedabad, Gujarat, India - 382481. Gandhinagar GUJARAT 382421 India
Ahmadabad
GUJARAT
382421
India 
Phone  09909013286  
Fax    
Email  consultant@novobliss.in  
 
Details of Contact Person
Scientific Query
 
Name  Dr Nayan Patel 
Designation  Sub investigator 
Affiliation  NovoBliss Research Private Limited 
Address  NovoBliss Research Pvt. Ltd. Office# 313, Silver Radiance-4, Gota,Ahmedabad
Ahmedabad, Gujarat, India - 382481.
Ahmadabad
GUJARAT
382421
India 
Phone  09909013286  
Fax    
Email  dr.nayan@novobliss.in  
 
Details of Contact Person
Public Query
 
Name  Maheshvari Patel 
Designation  Director Operations and Strategic Management 
Affiliation  NovoBliss Research Private Limited 
Address  NovoBliss Research Private Limited, Ahmedabad

Ahmadabad
GUJARAT
382421
India 
Phone  09909013236  
Fax    
Email  maheshvari@novobliss.in  
 
Source of Monetary or Material Support  
Naturelle LLC, Emirates Link Road, Al Jazeera Al Hamra Industrial Area P.O. Box: 6399, Ras AI Khaimah U.A. E  
 
Primary Sponsor  
Name  Naturelle LLC, 
Address  Emirates Link Road, Al Jazeera Al Hamra Industrial Area P.O. Box: 6399, Ras AI Khaimah U.A. E  
Type of Sponsor  Other [FMCG] 
 
Details of Secondary Sponsor  
Name  Address 
Nil  N/A  
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Darshan Patel  VRAJ Dental Clinic  F-F-5, Shukan Platinum, Vandematram Crossroad, New SG Rd, Gota, Ahmedabad 382481, Gujarat – India
Ahmadabad
GUJARAT 
09909013286

consultant@novobliss.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
ACEAS – Independent Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  A2 or Darker Tooth Colour 
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  NIL  N/A 
Intervention  Purple Toothpaste  Mode of Usage: Apply a pea-sized amount of toothpaste on the toothbrush bristles. Angle the toothbrush at 45 degrees to your gums and gently move it back and forth to clean your front teeth. Frequency: Twice a Day, (Morning and Before Bed) Route of administration: Topical Dosage Form: Paste Storage Condition: Store at room temperature 15°C to 30°C, away from sunlight. for 30 days 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  55.00 Year(s)
Gender  Both 
Details  1) Age: 18 to 55 years (both inclusive) old at the time of consent.
2) Sex: Healthy adult males and non-pregnant/non-lactating females.
3) Females of childbearing potential have a self-reported negative urine pregnancy test at the time of the screening visit and agree to follow an accepted method of birth control for the duration of the study such as condoms, foams, jellies, diaphragm, intrauterine device etc.
4) Subjects are generally in good general health as determined from recent medical history.
5) Tooth colour value of A2 or Darker (VITA Easyshade Advance 5.0), which was determined on the middle third of the vestibular surface of the maxillary lateral incisors by the Dentist.
6) Subjects who are Pan/Gutka eaters, smokers and have extrinsic stain intensity score more than 1 in extrinsic stain index.
7) Subjects having 6 present upper front teeth.
8) No previous whitening products | product and no restorations (anterosuperior group).
9) No cervical lesions, or dental pain.
10) Subjects who agree to discontinue the use of over-the-counter teeth whitening product throughout the study.
11) Subjects who agree to discontinue the use of any other oral care product except the test products like mouth wash, oil pull, any medicated gargle, mouth sprays, any tooth gel or whitening chewing gums etc. throughout the study.
12) Subjects who agree to refrain from the use of any oral products that may cause staining (chlorhexidine rinses, stannous fluoride toothpaste, etc.)
13) Agree not to participate in any other oral/dental product studies during the study.
14) Agree to return for all scheduled visits and follow study procedures.
15) Subjects who are willing to complete all study procedures including study-related questionnaires and comply with study requirements.
16) Subjects who can read, sign, and receive a copy of Informed Consent before on of study procedures.
 
 
ExclusionCriteria 
Details  1) Subjects who are undergoing product for gingivitis, periodontitis, or caries.
2) Subjects are present with fixed orthodontic appliances on the facial surfaces of the maxillary arch.
3) Subjects have dental crowns, veneers or composite restorations on gradable maxillary anterior teeth (canine to canine) or mandibular anterior teeth.
4) Subjects have any oral pathologies or gross neglect of home care requiring prompt product, including periodontal disease, as evidenced by purulent exudate, exposed root surfaces (generalized recession), tooth mobility, and/or other signs indicating that the integrity of the data collected for that subject might be compromised.
5) Subjects are present with any pre-existing oral or medical condition that the Investigator/designee determines may place the subject at increased health risk from study participation.
6) Subjects have teeth with severe or atypical intrinsic staining, such as that caused by tetracycline, fluorosis or hypo calcification.
7) Subjects have any known allergies to over-the-counter oral hygiene/whitening products.
8) Subjects have any known allergies to the test product ingredients.
9) The subject must not have participated in a clinical study with oral care or oral hygiene within 4 weeks before the screening visit of this study.
10) Any other condition which could warrant exclusion from the study, as per the investigator’s discretion.
11) Pregnant or breastfeeding or planning to become pregnant during the study period.
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
1. To evaluate the effectiveness of the test product in terms of change in whiteness of the teeth from baseline before and after usage of the test product.
2. To evaluate the effectiveness of the test product in terms of change in extrinsic stains from baseline before and after usage of the test product.
 
from baseline on Day 01, prior to test product usage to post product usage assessments on Day 01 at T1 mins, Day 07 (±2 Days) and Day 30 (±2 Days).
from baseline on Day 01, prior to test product usage to post product usage assessments on Day 01 at T1 mins, Day 07 (±2 Days) and Day 30 (±2 Days).
 
 
Secondary Outcome  
Outcome  TimePoints 
1. To evaluate the effectiveness of test product in terms of change in plaque deposition from baseline before & after usage of the test product.  from baseline on Day 01, prior to test product usage to post product usage assessments on Day 01 at T1 mins, Day 07 (±2 Days) & Day 30 (±2 Days). 
2. To evaluate the effectiveness of test product in terms of change in gingivitis from baseline before & after usage of the test product.  from baseline on Day 01, prior to test product usage to post product usage assessments on Day 01 at T1 mins, Day 07 (±2 Days) & Day 30 (±2 Days). 
3. To evaluate the effectiveness of test product in terms of change in freshness of breath from baseline before & after usage of the test product.  from baseline on Day 01, prior to test product usage to post product usage assessments on Day 01 at T1 mins, Day 07 (±2 Days) & Day 30 (±2 Days). 
4. To evaluate the effectiveness of test product in terms of change in visual appearance of teeth from baseline before & after usage of the test product.  from baseline on Day 01, prior to test product usage to post product usage assessments on Day 01 at T1 mins, Day 07 (±2 Days) & Day 30 (±2 Days). 
5. To evaluate the effectiveness of test product in terms of change in subject perception questionnaire from baseline before & after usage of the test product.  from baseline on Day 01, prior to test product usage to post product usage assessments on Day 01 at T1 mins, Day 07 (±2 Days) & Day 30 (±2 Days). 
 
Target Sample Size   Total Sample Size="32"
Sample Size from India="32" 
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   N/A 
Date of First Enrollment (India)   15/10/2025 
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="0"
Months="0"
Days="30" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
Recruitment Status of Trial (India)  Not Yet Recruiting 
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 is an open-label, single-arm, single-centre, prospective, interventional, clinical safety and efficacy study of Teeth whitening toothpaste in healthy adult subjects with A2 or darker tooth colour.

A total of 32 subjects, including males and non-pregnant, non-lactating females aged between 18 to 55 years (both inclusive), will be enrolled to complete 30 subjects in the study.

The potential subjects will be screened as per inclusion and exclusion criteria after obtaining written informed consent from the subjects. Subjects will be contacted telephonically by the screening department of NovoBliss Research prior to the enrolment visit. Subjects will be instructed to visit the facility as per below visits:

ü Visit 01 (Day 01): Screening and Enrolment, Baseline Evaluations, Product Usage Period and T1 min Post Usage Evaluation.

ü Visit 02 Day 07 (± 2 days): Product Usage period and Evaluations

ü Visit 03 Day 30 (± 2 days): Product Usage Evaluations and End of Study

 
Close