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CTRI Number  CTRI/2025/07/090585 [Registered on: 09/07/2025] Trial Registered Prospectively
Last Modified On: 02/07/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   A study to investigate efficacy and safety of SAR441566 in patients with ulcerative colitis 
Scientific Title of Study   A Phase 2, multinational, multicenter, randomized, doubleblind, placebo-controlled, dose-ranging study to evaluate the efficacy and safety of SAR441566 in adults with moderate-to-severe ulcerative colitis. 
Trial Acronym  SPECIFI-UC 
Secondary IDs if Any  
Secondary ID  Identifier 
DRI17822 Version number 1.0, 19-Dec-2024  Protocol Number 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name   
Designation   
Affiliation   
Address 




 
Phone    
Fax    
Email    
 
Details of Contact Person
Scientific Query
 
Name  Dr J Dinesh Kumar 
Designation  Medical Advisor 
Affiliation  Sanofi Healthcare India Private Limited 
Address  Sanofi House, L&T Business Park, Saki-Vihar Road, Powai

Mumbai
MAHARASHTRA
400072
India 
Phone  09790753835  
Fax    
Email  DineshKumar.Jeyaprakash@sanofi.com  
 
Details of Contact Person
Public Query
 
Name  Mr Laxman Deshmukh 
Designation  Clinical Project Leader 
Affiliation  Sanofi Healthcare India Private Limited 
Address  Sanofi House, CTS No. 117-B, Land T Business Park, Saki Vihar Road, Powai, Mumbai-

Mumbai
MAHARASHTRA
400072
India 
Phone  09730652540  
Fax    
Email  laxman.deshmukh@sanofi.com  
 
Source of Monetary or Material Support  
Sanofi Healthcare India Pvt. Ltd, Sanofi House, CTS No.117-B, L&T Business Park, Saki Vihar Road, Powai Mumbai:400072 
 
Primary Sponsor  
Name  Sanofi Healthcare India Pvt Limited 
Address  Sanofi House, CTS No.117-B, L&T Business Park, Saki Vihar Road, Powai Mumbai:400072 
Type of Sponsor  Pharmaceutical industry-Global 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     Argentina
Australia
Belgium
Brazil
Canada
Chile
China
Czech Republic
France
Germany
Greece
India
Italy
Japan
New Zealand
Poland
South Africa
Spain
Turkey
United States of America  
Sites of Study  
No of Sites = 11  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Manas Panigrahi  All India Institute of Medical Sciences (AIIMS)  Bhubaneswar-751019
Khordha
ORISSA 
9438884267

dr.manaskumarpanigrahi1@gmail.com 
Dr Vineet Ahuja  All India Institute Of Medical Sciences (AIIMS)  Ansari Nagar, New Delhi – 110 029
New Delhi
DELHI 
9810707170

vineet.aiims@gmail.com 
Dr Rupa Banerjee  Asian Hospital  Somajiguda, Hyderabad-500082
Hyderabad
TELANGANA 
9849287530

dr_rupa_banerjee@hotmail.com 
Dr Nitin Behl  Deep Hospital  Model Town, Ludhiana-141002
Ludhiana
PUNJAB 
8427000080

drbehlresearch@gmail.com 
Dr Rajib Sarkar  IPGMER  A.J.C Bose Road, Kolkata-700020
Kolkata
WEST BENGAL 
9477371103

dr.rajibsarkar2023@gmail.com 
Dr Jayanta Samanta  Postgraduate Institute of Medical Education and Research (PGIMER)  Sector 12, Chandigarh-160012
Chandigarh
CHANDIGARH 
9855319529

dj_samanta@yahoo.co.in 
Dr Rajiv Mehta  SIDS Hospital  Khatodara, Surat-395002
Surat
GUJARAT 
9879863510

rmgastro@yahoo.com 
Dr Gaurav Kumar Gupta  SMS Medical College  Jawahar Lal Nehru Marg, Ashok Nagar, Jaipur-302001
Jaipur
RAJASTHAN 
9214027938

drgauravsms@gmail.com 
Dr Mukesh Kalla  SR Kalla Hospital  Dhuleshwar Garden, Sardar Patel Marg, C Scheme, Jaipur-302001,
Jaipur
RAJASTHAN 
9829050622

drmkalla@rediffmail.com 
Dr Naveen Chand  Visakha Institute Medical Sciences  NH -16, Hanumanthavaka Junction, Visakhapatnam-530 040
Visakhapatnam
ANDHRA PRADESH 
9885837772

drmnaveenchandresearch@gmail.com 
Dr Ravi Shanker  Yashoda Hospital  Yashoda Healthcare Services Pvt ltd, Behind Hari Hara Kala Bhavan, S P Road, Secunderabad-500003
Hyderabad
TELANGANA 
9391075600

b_ravishankar@yahoo.com 
 
Details of Ethics Committee  
No of Ethics Committees= 11  
Name of Committee  Approval Status 
Ethics Committee S.M.S. Medical College and Attached Hospitals Address: J.L.N. Marg Jaipur Jaipur Jaipur Rajasthan - 302004  Submittted/Under Review 
ethics committee, SIDS Hospital and Research Centre, Surat  Approved 
Institute Ethics Committee, AIIMS, New Delhi  Submittted/Under Review 
Institutional Ethics Committee AIIMS, Bhubaneswar  Submittted/Under Review 
Institutional Ethics Committee Asian Institute of Gastroenterology, Hyderabad  Submittted/Under Review 
Institutional Ethics Committee, Deep Hospital, Ludhiana-  Submittted/Under Review 
IPGMEandR Research Oversight Committee, Kolkata  Approved 
Post Graduate Institute of Medical Education and Research, Chandigarh  Submittted/Under Review 
S.R.Kalla Memorial Ethics Committee for Human Research, Jaipur  Approved 
Visakha Institute of Medical Sciences, Visakhapatnam  Submittted/Under Review 
Yashoda Academy of Medical Education And Research, Yashoda Hospitals, Secunderabad  Submittted/Under Review 
 
Regulatory Clearance Status from DCGI  
Status 
Approved/Obtained 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K519||Ulcerative colitis, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Plcebo  up to 52 weeks 
Intervention  SAR441566  Dose formulation: Oral Unit dose strength(s): 100 mg Intervention description: For each dose arm, the participant will take 2 tablets in the morning and 2 in the evening (4 tablets total per day). Arm 200 mg BID: 4 tablets of SAR441566 100 mg daily. Arm 100 mg BID: 2 tablets of SAR441566 100 mg daily Arm 100 mg QD: 1 tablet of SAR441566 100 mg daily Arm Placebo: 0 tablet of SAR441566 Route of Administration: Oral Treatment duration: up to 52 weeks 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  75.00 Year(s)
Gender  Both 
Details  1. Male or female participants aged 18 to 75 years inclusive, at the time of signing the informed consent.
2. Participants who have clinical evidence of active UC for more than equal to 3 months before screening and confirmed by endoscopy during the screening period.
3. Active moderate-to-severe UC at screening as defined by a mMS of 5 to 9 (without the PGA, with a minimum RB subscore more than equal to 1, a minimum SF subscore more than equal to 1, a mMES more than equal to 2 confirmed by central reader, a minimum sum of all subscores of 5, and a disease extent more than 15 cm from the anal verge.
4. Must have received prior treatment for UC (either a or b below or combination of both)-
a-No prior exposure to AT, but having inadequate response to, loss of response to or intolerance to standard treatment with any of the following compounds- 5-ASA, 6-MP, AZA, MTX, oral or intravenous (IV) corticosteroids or history of corticosteroid dependence (defined an inability to successfully taper corticosteroids without recurrence of UC).
OR
b-Inadequate response to, loss of response to or intolerance to treatment with more than equal to 1 approved
5. AT such as a biologic agent (such as TNF antagonists, anti-integrin other than natalizumab, anti-IL-12/23, anti-IL-23, or experimental biologic UC therapeutics), or a small molecule (such as a JAKi or S1PRm) for UC. The treatment must have been discontinued according to the following timeline-
-anti-TNF, anti-IL12/23 and anti-IL23 therapies at least 8 weeks before randomization.
-vedolizumab, ustekinumab or rizankizumab treatment at least 8 weeks before randomization.
-experimental biologic UC therapy at least 8 weeks before randomization or 5 times the terminal half-life of the investigational drug, whichever is longer.
-JAKi or S1PRm at least 2 weeks before randomization.
-experimental biologic small molecule at least 2 weeks before randomization or 5 times the terminal half-life of the IMP, whichever is longer.
6. Participant may be receiving a therapeutic dosage of at least 1 of the following drugs-
-Oral 5-ASA compounds- prescribed dose must be stable for at least 2 weeks before screening colonoscopy or stopped treatment at least 2 weeks prior to screening colonoscopy.
-Oral corticosteroids must be at a prednisone-equivalent dose of 25 mg/day, or 9 mg/day of budesonide, and have been at a stable dose for at least 2 weeks prior to the screening colonoscopy or stopped at least 2 weeks prior to screening colonoscopy.
-AZA, 6-MP, or MTX- if the prescribed dose has been stable for at least 4 weeks before screening endoscopy, or, if stopped, medication must have been discontinued or at least 4 weeks prior to screening endoscopy to be considered eligible for enrollment.
Sex, contraceptive/barrier method and pregnancy testing requirements/breastfeeding

Contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.

a-Male participants
Male participants who are sexually active with female partner(s) of childbearing potential must agree to practice the protocol-specified contraception during the study and for up to 3 months, after the last dose of study intervention which will allow for one complete cycle of spermatogenesis following study drug discontinuation. Males must refrain from donating sperm during the study treatment period and for up to 3 months after the last dose of study intervention.

b-Female participants
-A female participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies-
- Is a woman of nonchildbearing potential (WONCBP)

OR
- Is a woman of childbearing potential (WOCBP) and agrees to use a contraceptive method that is highly effective (with a failure rate of less than 1percent per year), preferably with low user dependency, during the study intervention period (to be effective before starting the intervention) and for at least 3 months after the last administration of study intervention and agrees not to donate or cryopreserve eggs (ova, oocytes) for the purpose of reproduction during this period.
-A WOCBP must have a negative highly sensitive pregnancy test (urine or serum as required by local regulations) at screening and a negative urine pregnancy test before the first administration of study intervention. If a urine test cannot be confirmed as negative (eg, an ambiguous result), a serum pregnancy test is required. In such cases, the participant must be excluded from participation if the serum pregnancy result is positive.
a-WOCBP may participate and include who are- infertile due to surgical sterilization
b-(hysterectomy, bilateral oophorectomy, or tubal ligation), congenital anomaly such as
c-Mullerian agenesis, or post-menopausal - defined as either-
d-A woman more than equal to 50 years of age with an intact uterus, not on hormone therapy, who has had
e-either
f--cessation of menses for at least 1 year, or
g--at least 6 months of spontaneous amenorrhea with a follicle-stimulating hormone
h--(FSH) more than 40 mIU/mL,
i--A woman more than equal to 55 years of age not on hormone therapy, who has had at least 6 months of
j--spontaneous amenorrhea, or
k--A woman at least 55 years of age with a diagnosis of menopause prior to starting hormone replacement therapy.

Informed Consent

Capable of giving signed informed consent as described in Section 10.1 which includes compliance with the requirements and restrictions listed in the ICF and in this protocol. In countries where legal age of majority is above 18 years, a specific ICF must also be signed by the participants legally authorized representative.
 
 
ExclusionCriteria 
Details  Medical conditions
1. Participants with active CD, indeterminate colitis, ischemic colitis, microscopic colitis.
2. Participants with the following ongoing known complications of UC:
-Fulminant colitis
-Toxic megacolon
-Or any other manifestation that might require bowel surgery while enrolled in the study
-Participant with ostomy or ileoanal pouch
3. Participants with prior colectomy or anticipated colectomy during their participation in the study.
4. Participants with fecal sample positive for ova or parasites, or any aerobic pathogens at screening including: Aeromonas, Plesiomonas, Shigella, Salmonella, Yersinia, Campylobacter, or E. coli sp. or positive for
Clostridium difficile B toxin in stools.
5. At the screening visits, participants with positive-
- Hepatitis B surface antigen (HBsAg), or Hepatitis B core antibody immunoglobulin M (HBcAb IgM) or HBcAb total, or Hepatitis C virus antibody (HCVAb) confirmed by positive HCV-RNA. (Participants with a positive HCVAb and negative HCV-RNA who have documented evidence of completing HCV anti-virals with cure may be included)
- Any other active, chronic or recurrent infection, including recurrent or disseminated herpes zoster or disseminated herpes simplex.
6. Participants with a known history of human immunodeficiency virus (HIV) infection or positive HIV-1 or HIV-2 serology at screening.
7. Participants with active tuberculosis or who meet tuberculosis exclusionary parameters:
- Active TB or a history of incompletely treated TB.
- Undergoing treatment for latent TB infection (LTBI).
- Positive QuantiFERON-TB test at Screening visit. Indeterminate QuantiFERON-TB may be repeated once during screening period and will be considered positive if retest results are positive or indeterminate.
- Current household contacts with active TB.
- Received BCG-vaccination within 12 months prior to screening.
-Participants meeting all the following TB-related criteria would not be excluded:
- documented completed appropriate LTBI treatment, OR treated for active TB infection (with a treatment regimen as per local guidelines),
AND
- have obtained consultation with a specialist to rule out or treat active TB infection
AND
- for whom review and approval from Sponsor have been granted are eligible.
Note- TB testing is mandatory to rule out active/latent TB and a blood sample for QuantiFERON-Tuberculosis Gold Interferon- Gamma Release Assay (IGRA) testing should be sent to the central laboratory.
8. Participants presenting with active malignancies, lymphoproliferative disease, or recurrence of either, within the 5 years before screening (with the exception of the following treated malignancies that are allowed in the study- basal cell carcinoma, adequately squamous cell carcinoma in situ of the skin or cervical carcinoma in situ).
9. Participants with adenomatous colonic polyps or colonic mucosal dysplasia (low- or high-grade) not excised or incompletely excised.
10. History of colonic mucosal dysplasia or presence of adenomatous colonic polyps not removed OR presence of colonic mucosal dysplasia or adenomatous colonic polyps not removed during colonoscopy at screening visit.
11. If the participant has extensive colitis for more than equal to 8 years or disease limited to left side of colon (ie, distal to splenic flexure) for more than 10 years, regardless of age, a colonoscopy within 1 year of the screening visit is required to survey for dysplasia. Participants with dysplasia or cancer identified on biopsies will be excluded.
12. Participants with active diverticulitis, history of gastrointestinal perforation (other than appendicitis or mechanical injury), or significantly increased risk for gastrointestinal perforation per Investigator judgment.
13. Female participants who is pregnant, breastfeeding, or is considering becoming pregnant during the study or within 3 months after the last dose of study drug.
14. Participants with a history of allergic reaction or significant sensitivity to components of the study drug (and its excipients).
15. Participants with any of the following cardiovascular conditions or thrombotic conditions at screening-
- Participants with New York Heart Association Class III or higher heart failure
- Participants with recent (within past 6 months before screening) cerebrovascular accident, myocardial infarction, coronary stenting,
- Participants with current uncontrolled hypertension as defined by a confirmed systolic blood pressure (BP) more than 160 mmHg or diastolic BP more than 100 mmHg;
- Participants with known inherited conditions that predispose to hypercoagulability.
16. Participants with a history of diagnosis of demyelinating disease such as but not limited to:
-Multiple Sclerosis
-Acute Disseminated Encephalomyelitis

Prior/concomitant therapy
18. Participants with usage of below prior/concomitant medications
-Use of strong CYP3A4 inhibitors or strong CYP3A4 inducers within 7 days (for inhibitors) and 14 days (for inducers), respectively, or 5 times the elimination half-life of the medication (whichever is longer) prior to the first IMP administration, or the need for ongoing treatment with concomitant oral or intravenous therapy with strong CYP3A4 inhibitors or strong CYP3A4 inducers during the screening.
-Use of P-gp inhibitors or inducers which clinically alter the systemic exposure of the victim drug by at least 2-fold within 7 days (for inhibitors) and 14 days (for inducers), respectively, prior to start of IMP administration or within 5 times the elimination half-life of the medication whichever is the longer, or the need for ongoing treatment with these P-gp inhibitors or inducers during the screening.
-Use of P-gp substrates with a narrow therapeutic index, for which the label indicates that P-gp inhibition led to an increase in systemic exposure, within 7 days prior to start of IMP administration or within 5 times the elimination half-life of the medication (whichever is the longer) or the need for ongoing treatment with these substrates during the screening.
-Sensitive CYP1A2 substrates with a narrow therapeutic index within 7 days prior start of IMP administration or 5 time the elimination half-life of the medication whichever is the longer, or the need for ongoing treatment with concomitant oral or IV therapy with these drugs during the screening.
19. Participants on antidiarrheals or opiates within 2 weeks prior to screening or during screening period.
20. The use of concomitant medications that prolong the QT/QTc interval with known risk of TdP .
21. Infection(s) requiring treatment with IV anti-infectives within 30 days prior to the screening visit or oral/intramuscular anti-infectives within 14 days prior to the screening visit.
22. Participants requiring or receiving any parental nutrition and/or exclusive enteral nutrition.
23. Participants who received cyclosporine, tacrolimus, mycophenolate mofetil, or thalidomide within 30 days prior to screening.
24. Participants who received fecal microbial transplantation within 30 days prior to screening.
25. Participants who have ever been exposed to 4 or more marketed ATs including biologics or small molecules (JAKi or S1PRm) during their lifetime. Exposure is defined as having received one complete dose of the AT.
26. Participants who have ever been exposed to natalizumab (Tysabri) or oral carotegrast methyl (Carogra), or received any of the following agents-
- 4 or more biologic anti-TNFs during their lifetime, or exposure to Adalimumab, certolizumab, golimumab, infliximab, or an anti TNF biosimilar within 8 weeks prior to randomization Vedolizumab, ustekinumab, or rizankizumab within 12 weeks prior to randomization
Note: If there is proper documentation of an undetectable drug level measured by a commercially available assay for any of the approved biologics above, there is no minimum washout prior to randomization.
27. Participants with previous exposure to a JAKi (eg, tofacitinib, filgotinib, upadacitinib) or S1PRm (eg, ozanimod, etrasimod) within 2 weeks prior to the screening visit.
Note- Participants who received a JAK inhibitor prior to study entry may be enrolled if they have had an inadequate response or loss of response to the JAKi.
28. Participants who received IV corticosteroids within 14 days prior to screening or during screening period.
29. Participants who received therapeutic enema(s) or suppository(ies) (eg, rectal 5-ASA/ corticosteroids), other than required for colonoscopy, within 14 days prior to the colonoscopy used for screening or during the treatment.
30. Participants who received apheresis (eg, adacolumn apheresis) within 60 days prior to screening or during screening period.
31. Participants who received antibiotics for UC or gastrointestinal infection within 4 weeks prior to screening.
32. Participants with cannabis use, either recreational or for medical reasons, within 14 days prior to screening visit or any history of clinically significant (as per Investigators judgement) drug or alcohol abuse in last 6 months.
33. Participants who have been the recipient of an organ transplant which requires continued immunosuppression.

 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Not Applicable 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
To assess efficacy of different doses of SAR441566 on clinical remission in participants with moderate-to-severe UC  52 weeks 
 
Secondary Outcome  
Outcome  TimePoints 
To assess the effect of different doses of SAR441566 on clinical response in participants with moderate-to-severe UC  52 weeks 
 
Target Sample Size   Total Sample Size="204"
Sample Size from India="36" 
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 2 
Date of First Enrollment (India)   15/07/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  15/06/2025 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="2"
Months="6"
Days="15" 
Recruitment Status of Trial (Global)   Open to Recruitment 
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  

This is a Phase 2, multinational, multicenter, randomized, double-blind, placebo-controlled, dose ranging study to evaluate the efficacy and safety of SAR441566 in adults with moderate-to-severe UC. The target population of the study is participants with moderate to severely active UC, defined as an active disease with a modified Mayo Score (mMS) from 5 to 9, with a modified Mayo Endoscopic Subscore (mMES) more than equal to 2, as confirmed by a central reader, an average daily very soft or liquid stool frequency (SF) more than equal to1, and average rectal bleeding (RB) subscore more than equal to 1 at screening. Participants on stable doses of standard therapies such as aminosalicylates (ASAs), oral steroids, thiopurines (azathioprine [AZA] or 6-mercaptopurine [6-MP]) or methotrexate (MTX) and not on medications prohibited due to the risk of drug-drug interaction (DDI) or known risk of Torsade de Pointes (TdP) would be eligible for the study. Participants who do not meet the inclusion criteria or meet one of the exclusion criteria will not be enrolled.

 
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