Coeliac DiseasePhase 2NCT06557772
A Phase 2a/b Study of the Efficacy and Safety of Subcutaneous Amlitelimab in Adults With Nonresponsive Celiac Disease
A Phase 2 study testing Amlitelimab, SIGE and Gluten-free product (GFP) in people with Coeliac Disease and Celiac Disease, run by Sanofi at 118 sites in 21 countries.
Trial summary
This is a Phase 2a/b, randomized, double-blind, placebo-controlled, parallel-group, 6-arm study to evaluate the efficacy and safety of amlitelimab in adult participants with non-responsive celiac disease (NRCD) who are on a gluten free diet (GFD) with and without simulated inadvertent gluten exposure (SIGE). Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Coeliac Disease, Celiac Disease
- What is being tested?
- Amlitelimab, SIGE and Gluten-free product (GFP)
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 229 participants
- Where
- 118 sitesin 21 countries
- Study dates
- 29 Aug 2024to 10 Apr 2029
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Participants must be 18 to 75 years of age inclusive, at the time of signing the informed consent.
- Participants with physician-diagnosed celiac disease with documented history of biopsy-proven celiac disease confirmed by medical records or physician statement.
- Participants who have self-reported attempt to maintain a GFD (and confirmed via questionnaire) for at least 12 consecutive months and must be willing to maintain their current diet for the duration of study participation.
- Participants have an adequate comprehension of a GFD as assessed by the Investigator.
- Participants willing to undergo all assessments in the protocol, including 2 esophagogastroduodenoscopies with duodenal biopsies.
- Participants who completed CDSD with ≥ 75% compliance from screening until randomization.
- During screening, participants must have at least one gastrointestinal symptom (i.e., diarrhea, abdominal pain, bloating, or nausea) of moderate or greater severity, as measured by the CDSD Gastrointestinal Domain, on at least 3 days out of any consecutive 7-day period considered by the investigator to be related to gluten exposure (i.e., due to celiac disease). The symptom can vary, but severity must be moderate or greater on three or more days. Participants must meet symptom criteria to undergo baseline esophagogastroduodenoscopy (EGD).
Who cannot join
- Participants are excluded from the study if any of the following criteria apply:
- A diagnosis of any severe complication of celiac disease, such as refractory celiac disease type 1 (RCD I) requiring immune suppressive medication, or type 2 (RCD II), enteropathy associated T-cell lymphoma (EATL), ulcerative jejunitis, or recent (within 12 months of screening) GI perforation.
- Presence of other active inflammatory GI disorders, including but not limited to the following: inflammatory bowel disease, eosinophilic esophagitis, diverticulitis, helicobacter infection, gastroenteritis or colitis, and microscopic colitis (requiring treatment) in the 6 months before screening. A history of treated erosive esophagitis is not an exclusion. Abnormalities found during baseline EGD or biopsy that are consistent with an inflammatory GI disorder other than celiac disease are exclusionary.
- Presence of other systemic autoimmune diseases including scleroderma, psoriatic or rheumatoid arthritis, and lupus. Participants with thyroid disease that has been well-controlled for at least 6 months, prior to screening, and participants with well-controlled type 1 diabetes (glycosylated hemoglobin < 9 % and no hospitalization or emergency room visit in the last 12 months for hyperglycemia or hypoglycemia) can be included per investigator judgement.
- Known or suspected severe enteric infection (viral, bacterial, or parasitic) within 6 months before screening. Severe enteric infection is defined as requiring a visit to the emergency room, hospitalization, or treatment with antibiotics or anti-infectives due to infection. Non-enteric viral infections, either resolved or well-controlled are not exclusionary.
- Any active or chronic infection including helminthic infection requiring systemic treatment within 4 weeks prior to screening (1 week in the event of superficial skin infections).
Show all 16Show fewer
- Known history of or suspected significant current immunosuppression or hyposplenism, including history of invasive opportunistic or invasive helminthic infections despite infection resolution or otherwise recurrent infections of abnormal frequency or prolonged duration.
- Any malignancies or history of malignancies prior to enrollment (except for non-melanoma skin cancer that has been excised and completely cured for more than 5 years prior to enrollment).
- History of solid organ or stem cell transplant.
- Ongoing use, or use in the 3 months before screening, of medications known to cause villus abnormalities (eg, mycophenolate mofetil, azathioprine, methotrexate, olmesartan (other angiotensin receptor blockers are allowed), CTLA4 inhibitors, and PD-1/PD-L1 inhibitors).
- Ongoing chronic use of non-steroidal anti-inflammatory drugs (NSAIDs) of more than 2 doses per week, except acetylsalicylic acid/aspirin ≤100 mg daily for prophylactic use.
- Any ongoing treatment with systemic immunosuppressants, systemic corticosteroids, or use of oral budesonide in the 12 weeks before screening.
- Ongoing use of over-the-counter digestive enzymes or supplements, other than lactase, including those for gluten digestion and oral pharmaceutical probiotic supplements. Probiotics in foods (e.g., yogurt) are permitted.
- Concurrent participation in any other clinical study, including non-interventional studies.
- Prior administration of investigational agents to treat celiac disease within 5 half-lives of any agent, or one year from any tolerogenic agent.
- The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
Trial locations and contacts
118 sites in 21 countries.
118 sites in 21 countries
United States35 sites
FOMAT Medical Research - inSite Digestive Health Care - Arcadia- Site Number : 8400052
Arcadia, California, 91006
Treasure Valley Medical Research- Site Number : 8400006
Boise, Idaho, 83706
Boston Specialists- Site Number : 8400051
Boston, Massachusetts, 02111
Texas Digestive Disease Consultants - Cedar Park- Site Number : 8400030
Cedar Park, Texas, 78613
M3 Wake Research - Chattanooga- Site Number : 8400012
Chattanooga, Tennessee, 37421
Advanced Research Institute - Denver- Site Number : 8400048
Denver, Colorado, 80218
Velocity Clinical Research - Providence- Site Number : 8400002
East Greenwich, Rhode Island, 02818
Sanmora Bespoke Clinical Research Solutions- Site Number : 8400015
East Orange, New Jersey, 07018
Allied Digestive Health - Middlesex Monmouth Gastroenterology- Site Number : 8400053
Freehold, New Jersey, 07728
MedCare Pharma - Houston - Cypress Creek Parkway- Site Number : 8400016
Houston, Texas, 77090
Hutchinson Clinic- Site Number : 8400020
Hutchinson, Kansas, 67502
University of Kansas Medical Center- Site Number : 8400041
Kansas City, Kansas, 66160
Om Research- Site Number : 8400001
Lancaster, California, 93534
United Medical Doctors - Los Alamitos- Site Number : 8400014
Los Alamitos, California, 90720
Gastroenterology Associates of Central Virginia- Site Number : 8400057
Lynchburg, Virginia, 24502
Wellness Clinical Research - Miami Lakes - 8181 Northwest 154th Street- Site Number : 8400040
Miami Lakes, Florida, 33016
Quality Medical Research- Site Number : 8400018
Nashville, Tennessee, 37211
Advanced Research Institute - Odgen- Site Number : 8400044
Ogden, Utah, 84405
Center for Digestive Health- Site Number : 8400013
Orlando, Florida, 32803
Om Research- Site Number : 8400010
Oxnard, California, 93030
LinQ Research - Smith Ranch Road- Site Number : 8400028
Pearland, Texas, 77584
Thomas Jefferson University Hospital- Site Number : 8400056
Philadelphia, Pennsylvania, 19107
Berkshire Medical Center- Site Number : 8400017
Pittsfield, Massachusetts, 01201
M3 Wake Research- Site Number : 8400008
Raleigh, North Carolina, 27612
Advanced Research Institute - Reno- Site Number : 8400036
Reno, Nevada, 89511
Clinical Research Partners - Richmond - Forest Avenue- Site Number : 8400011
Richmond, Virginia, 23220
Mayo Clinic in Rochester - Minnesota- Site Number : 8400049
Rochester, Minnesota, 55905
Advanced Research Institute - Sandy - South 1300 East- Site Number : 8400046
Sandy City, Utah, 84094
One of a Kind Clinical Research Center - Scottsdale- Site Number : 8400055
Scottsdale, Arizona, 85253
Washington University- Site Number : 8400025
St Louis, Missouri, 63110
GI Alliance - Tacoma- Site Number : 8400033
Tacoma, Washington, 98405
GCP Clinical Research- Site Number : 8400007
Tampa, Florida, 33609
DM Clinical Research - Tomball- Site Number : 8400042
Tomball, Texas, 77375
Velocity Clinical Research - Salt Lake City- Site Number : 8400023
West Jordan, Utah, 84088
Gastroenterology Associates of Western Michigan - Wyoming- Site Number : 8400004
Wyoming, Michigan, 49519
Argentina9 sites
Investigational Site Number : 0320012
Buenos Aires, Buenos Aires F.D., 1061
Investigational Site Number : 0320007
Buenos Aires, 1006
Investigational Site Number : 0320009
Buenos Aires, 1119
Investigational Site Number : 0320001
Buenos Aires, 1128
Investigational Site Number : 0320003
Córdoba, 5000
Investigational Site Number : 0320010
Quilmes, Buenos Aires, 1878
Investigational Site Number : 0320005
Rosario, Santa Fe Province, 2000
Investigational Site Number : 0320008
San Isidro, Buenos Aires, 1642
Investigational Site Number : 0320002
San Miguel de Tucumán, Tucumán Province, 4000
Spain9 sites
Investigational Site Number : 7240006
Barcelona, Barcelona [Barcelona], 08035
Investigational Site Number : 7240009
Chiclana de la Frontera, Cádiz, 11139
Investigational Site Number : 7240011
Las Palmas de Gran Canaria, Las Palmas, 35010
Investigational Site Number : 7240007
Madrid, 28003
Investigational Site Number : 7240003
Madrid, 28034
Investigational Site Number : 7240004
Málaga, 29010
Investigational Site Number : 7240002
Seville, Sevilla, 41013
Investigational Site Number : 7240008
Seville, 41012
Investigational Site Number : 7240010
Seville, 41012
Brazil6 sites
Chronos Pesquisa Clínica- Site Number : 0760002
Brasília, Federal District, 72145-450
Hospital Moinhos de Vento- Site Number : 0760004
Porto Alegre, Rio Grande do Sul, 90035-902
Hospital São Lucas da PUCRS - Porto Alegre - Avenida Ipiranga- Site Number : 0760001
Porto Alegre, Rio Grande do Sul, 90610-000
Hospital Sao Rafael- Site Number : 0760005
Salvador, Estado de Bahia, 41253-190
Centro de Pesquisas da Clínica IBIS- Site Number : 0760006
Salvador, Estado de Bahia, 41820-020
Praxis Pesquisas Medicas- Site Number : 0760008
Santo André, São Paulo, 09090-790
Chile6 sites
Investigational Site Number : 1520006
Concepción, Biobio, 4070038
Investigational Site Number : 1520007
Santiago, Reg Metropolitana de Santiago, 7510086
Investigational Site Number : 1520004
Santiago, Reg Metropolitana de Santiago, 7620001
Investigational Site Number : 1520001
Santiago, Reg Metropolitana de Santiago, 8330034
Investigational Site Number : 1520008
Santiago, Reg Metropolitana de Santiago, 8331143
Investigational Site Number : 1520005
Talcahuano, Biobio, 2687000
Israel6 sites
Investigational Site Number : 3760002
Afula, 1834111
Investigational Site Number : 3760006
Beersheba, 8457108
Investigational Site Number : 3760004
Jerusalem, 9103102
Investigational Site Number : 3760003
Petah Tikva, 4941492
Investigational Site Number : 3760007
Ramat HaSharon, 4731001
Investigational Site Number : 3760001
Rehovot, 7610001
Turkey (Türkiye)6 sites
Investigational Site Number : 7920004
Antalya, 07100
Investigational Site Number : 7920003
Gaziantep, 27310
Investigational Site Number : 7920006
Istanbul, 34899
Investigational Site Number : 7920007
Izmir, 35100
Investigational Site Number : 7920001
Mersin, 33070
Investigational Site Number : 7920005
Sanliurfa, 63290
Czechia5 sites
Investigational Site Number : 2030002
Brno, 636 00
Investigational Site Number : 2030006
Havířov, 736 01
Investigational Site Number : 2030005
Klatovy, 339 01
Investigational Site Number : 2030001
Prague, 118 33
Investigational Site Number : 2030003
Prague, 150 06
Germany4 sites
Investigational Site Number : 2760006
Berlin, 10117
Investigational Site Number : 2760004
Berlin, 12203
Investigational Site Number : 2760001
Halle, 06108
Investigational Site Number : 2760002
Mainz, 55131
Poland4 sites
Investigational Site Number : 6160001
Krakow, Lesser Poland Voivodeship, 31-501
Investigational Site Number : 6160004
Poznan, Greater Poland Voivodeship, 60-529
Investigational Site Number : 6160002
Warsaw, Masovian Voivodeship, 02-507
Investigational Site Number : 6160005
Wroclaw, Lower Silesian Voivodeship, 50-088
Sweden4 sites
Investigational Site Number : 7522001
Linköping, 582 16
Investigational Site Number : 7521001
Mölndal, 431 53
Investigational Site Number : 7520003
Stockholm, 116 91
Investigational Site Number : 7520001
Uppsala, 752 37
Australia3 sites
Investigational Site Number : 0360001
Mackay, Queensland, 4740
Investigational Site Number : 0360005
Melbourne, Victoria, 3128
Investigational Site Number : 0360002
Sydney, New South Wales, 2560
Finland3 sites
Investigational Site Number : 2460002
Helsinki, 00180
Investigational Site Number : 2460003
Helsinki, 00270
Investigational Site Number : 2460001
Turku, 20520
Italy3 sites
Ospedale Maggiore Policlinico Milano-Site Number : 3800002
Milan, Milano, 20122
Azienda Ospedaliera di Padova-Site Number : 3800004
Padua, Padova, 35128
Ospedale di Cisanello-Site Number : 3800003
Pisa, 56124
Slovakia3 sites
Investigational Site Number : 7030001
Košice, 040 13
Investigational Site Number : 7030003
Nitra, 950 01
Investigational Site Number : 7030004
Šahy, 936 01
Belgium2 sites
Investigational Site Number : 0560002
Brussels, 1200
Investigational Site Number : 0560001
Leuven, 3000
Canada2 sites
Investigational Site Number : 1240001
Vancouver, British Columbia, V6Z 2K5
Investigational Site Number : 1240002
Victoria, British Columbia, V8V 3M9
France2 sites
Investigational Site Number : 2500002
Nice, 06202
Investigational Site Number : 2500001
Paris, 75015
Greece2 sites
Investigational Site Number : 3000001
Athens, 106 76
Investigational Site Number : 3000002
Athens, 115 27
Netherlands2 sites
Investigational Site Number : 5280001
Amsterdam, 1081 HV
Investigational Site Number : 5280002
Arnhem, 6815 AD
United Kingdom2 sites
Investigational Site Number : 8260001
Oxford, Oxfordshire, OX3 9DU
Investigational Site Number : 8260002
Sheffield, S5 7AU
About this study
Official title: A Phase 2a/b, Randomized, Double-blind, Placebo-controlled, Parallel-group Study to Investigate the Efficacy and Safety of Subcutaneous Amlitelimab in Adult Patients With Nonresponsive Celiac Disease as an Adjunct to a Gluten-free Diet
This is a Phase 2a/b, randomized, double-blind, placebo-controlled, parallel-group, 6-arm study to evaluate the efficacy and safety of amlitelimab in adult participants with non-responsive celiac disease (NRCD) who are on a gluten free diet (GFD) with and without simulated inadvertent gluten exposure (SIGE).
The primary purpose of this study is to demonstrate the efficacy of subcutaneous (SC) amlitelimab in male and female participants (aged 18 to 75 years, inclusive) with NRCD. The study will assess the effect of amlitelimab when compared to placebo on gluten induced changes in the intestinal mucosa as measured by the villous height to crypt depth (Vh:Cd) ratio. The effect of amlitelimab on participant-reported celiac signs and symptoms along with the safety, tolerability, and pharmacokinetics of amlitelimab will also be studied.
Read more
Study details include:
The study duration will be up to 48 weeks (including a 16-week safety follow-up period) with 10 visits for participants who opt not to enter the optional long-term extension.
The study duration will be up to 172 weeks (including an 8-week safety follow-up period) with 22 visits for participants who enter the optional long-term extension.
The double-blind placebo-controlled treatment duration will be up to 28 weeks.
- Conditions
- Coeliac Disease, Celiac Disease
- Being tested
- Amlitelimab, Placebo, SIGE, Gluten-free product (GFP)
- Medical subject headings
- Celiac Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AmlitelimabDrug
Also called SAR445229
Pharmaceutical form: Injection solution Route of administration: SC injection
PlaceboDrug
Pharmaceutical form: Injection solution Route of administration: SC injection
SIGEDietary supplement
Pharmaceutical form: Capsule Route of administration: Oral
Gluten-free product (GFP)Dietary supplement
Pharmaceutical form: Capsule Route of administration: Oral
| Study group | Role | What they receive |
|---|---|---|
| Amlitelimab dose 1 + Gluten-free product (GFP) | Experimental | Amlitelimab SC as per protocol + GFP Receives: Drug: Amlitelimab; Dietary Supplement: Gluten-free product (GFP) |
| Amlitelimab dose 2 + GFP | Experimental | Amlitelimab SC as per protocol + GFP Receives: Drug: Amlitelimab; Dietary Supplement: Gluten-free product (GFP) |
| Amlitelimab dose 3 + GFP | Experimental | Amlitelimab SC as per protocol + GFP Receives: Drug: Amlitelimab; Dietary Supplement: Gluten-free product (GFP) |
| Amlitelimab dose 1 + SIGE | Experimental | Amlitelimab SC as per protocol + SIGE Receives: Drug: Amlitelimab; Dietary Supplement: SIGE |
| Placebo + GFP | Placebo comparator | Placebo SC as per protocol + GFP Receives: Drug: Placebo; Dietary Supplement: Gluten-free product (GFP) |
| Placebo + SIGE | Placebo comparator | Placebo SC as per protocol + SIGE Receives: Drug: Placebo; Dietary Supplement: SIGE |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Villus Height to Crypt Depth Ratio (Vh:Cd) from baseline to Week 28
Change in Vh:Cd ratio.
Measured: Baseline to Week 28
Secondary outcomes (6)
Change in Celiac Disease Symptom Diary (CDSD) Gastrointestinal (GI) symptom severity score
The CDSD is a patient report outcome instrument that assesses common celiac symptoms (abdominal pain, bloating, tiredness, nausea, and diarrhea). GI symptom severity score ranges from 0-20 with higher score indicating more severe disease.
Measured: Baseline to Week 28
Percentage of participants who experienced treatment-emergent adverse events (TEAEs), including serious adverse events (SAEs) and adverse events of special interest (AESI) during the placebo-controlled treatment period and the long-term extension
Measured: Baseline to Week 168
Percentage of participants with potentially clinically significant abnormalities (PCSA) for vital signs and clinical laboratory assessments during the placebo-controlled treatment period and the long-term extension
Measured: Baseline to Week 168
Percentage of participants discontinued from study treatment due to TEAEs during the placebo-controlled treatment period and the long-term extension
Measured: Baseline to Week 168
Serum amlitelimab concentrations measured at prespecified timepoints
Measured: Baseline to Week 168
Incidence of antidrug antibodies (ADAs) of amlitelimab
Measured: Baseline to Week 168
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Aug 2024
- Study start29 Aug 2024
- Primary completion5 Aug 2026
- Study completion10 Apr 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Coeliac DiseaseStudies of the same condition, open and under way.
- More trials run by SanofiThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 229 participants (actual)
Sponsor and investigators
- Lead sponsor
- Sanofi
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06557772
- Sponsor's protocol ID
- DRI17963
- Other IDs
- 2024-511213-38, U1111-1298-7193
- Status last verified
- Aug 2026
- First submitted
- 14 Aug 2024
- Last updated
- 31 Aug 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
Study at a glance
From the registry record, last updated by the sponsor on 31 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2a/b, Randomized, Double-blind, Placebo-controlled, Parallel-group Study to Investigate the Efficacy and Safety of Subcutaneous Amlitelimab in Adult Patients With Nonresponsive Celiac Disease as an Adjunct to a Gluten-free Diet
- ClinicalTrials.gov ID
- NCT06557772
- Acronym / sponsor ID
- DRI17963
- Conditions
- Coeliac Disease, Celiac Disease
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 229 participants (actual)
- Lead sponsor
- SanofiIndustry (pharma, biotech, devices)
- Study start
- 29 Aug 2024 (actual)
- Primary completion
- 5 Aug 2026 (actual)
- Study completion
- 10 Apr 2029 (estimated)
- First posted
- 16 Aug 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a Phase 2a/b, randomized, double-blind, placebo-controlled, parallel-group, 6-arm study to evaluate the efficacy and safety of amlitelimab in adult participants with non-responsive celiac disease (NRCD) who are on a gluten free diet (GFD) with and without simulated inadvertent gluten exposure (SIGE).
The primary purpose of this study is to demonstrate the efficacy of subcutaneous (SC) amlitelimab in male and female participants (aged 18 to 75 years, inclusive) with NRCD. The study will assess the effect of amlitelimab when compared to placebo on gluten induced changes in the intestinal mucosa as measured by the villous height to crypt depth (Vh:Cd) ratio. The effect of amlitelimab on participant-reported celiac signs and symptoms along with the safety, tolerability, and pharmacokinetics of amlitelimab will also be studied.
Study details include:
The study duration will be up to 48 weeks (including a 16-week safety follow-up period) with 10 visits for participants who opt not to enter the optional long-term extension.
The study duration will be up to 172 weeks (including an 8-week safety follow-up period) with 22 visits for participants who enter the optional long-term extension.
The double-blind placebo-controlled treatment duration will be up to 28 weeks.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| Amlitelimab dose 1 + Gluten-free product (GFP) | Experimental | Drug: Amlitelimab, Dietary Supplement: Gluten-free product (GFP)Amlitelimab SC as per protocol + GFP |
| Amlitelimab dose 2 + GFP | Experimental | Drug: Amlitelimab, Dietary Supplement: Gluten-free product (GFP)Amlitelimab SC as per protocol + GFP |
| Amlitelimab dose 3 + GFP | Experimental | Drug: Amlitelimab, Dietary Supplement: Gluten-free product (GFP)Amlitelimab SC as per protocol + GFP |
| Amlitelimab dose 1 + SIGE | Experimental | Drug: Amlitelimab, Dietary Supplement: SIGEAmlitelimab SC as per protocol + SIGE |
| Placebo + GFP | Placebo comparator | Drug: Placebo, Dietary Supplement: Gluten-free product (GFP)Placebo SC as per protocol + GFP |
| Placebo + SIGE | Placebo comparator | Drug: Placebo, Dietary Supplement: SIGEPlacebo SC as per protocol + SIGE |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Participants must be 18 to 75 years of age inclusive, at the time of signing the informed consent.
- Participants with physician-diagnosed celiac disease with documented history of biopsy-proven celiac disease confirmed by medical records or physician statement.
- Participants who have self-reported attempt to maintain a GFD (and confirmed via questionnaire) for at least 12 consecutive months and must be willing to maintain their current diet for the duration of study participation.
- Participants have an adequate comprehension of a GFD as assessed by the Investigator.
- Participants willing to undergo all assessments in the protocol, including 2 esophagogastroduodenoscopies with duodenal biopsies.
Key exclusion criteria (16 listed)
- A diagnosis of any severe complication of celiac disease, such as refractory celiac disease type 1 (RCD I) requiring immune suppressive medication, or type 2 (RCD II), enteropathy associated T-cell lymphoma (EATL), ulcerative jejunitis, or recent (within 12 months of screening) GI perforation.
- Presence of other active inflammatory GI disorders, including but not limited to the following: inflammatory bowel disease, eosinophilic esophagitis, diverticulitis, helicobacter infection, gastroenteritis or colitis, and microscopic colitis (requiring treatment) in the 6 months before screening. A history of treated erosive esophagitis is not an exclusion. Abnormalities found during baseline EGD or biopsy that are consistent with an inflammatory GI disorder other than celiac disease are exclusionary.
- Presence of other systemic autoimmune diseases including scleroderma, psoriatic or rheumatoid arthritis, and lupus. Participants with thyroid disease that has been well-controlled for at least 6 months, prior to screening, and participants with well-controlled type 1 diabetes (glycosylated hemoglobin < 9 % and no hospitalization or emergency room visit in the last 12 months for hyperglycemia or hypoglycemia) can be included per investigator judgement.
- Known or suspected severe enteric infection (viral, bacterial, or parasitic) within 6 months before screening. Severe enteric infection is defined as requiring a visit to the emergency room, hospitalization, or treatment with antibiotics or anti-infectives due to infection. Non-enteric viral infections, either resolved or well-controlled are not exclusionary.
- Any active or chronic infection including helminthic infection requiring systemic treatment within 4 weeks prior to screening (1 week in the event of superficial skin infections).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AmlitelimabAlso: SAR445229Pharmaceutical form: Injection solution Route of administration: SC injection | Drug | Amlitelimab dose 1 + Gluten-free product (GFP), Amlitelimab dose 1 + SIGE, Amlitelimab dose 2 + GFP, Amlitelimab dose 3 + GFP |
| PlaceboPharmaceutical form: Injection solution Route of administration: SC injection | Drug | Placebo + GFP, Placebo + SIGE |
| SIGEPharmaceutical form: Capsule Route of administration: Oral | Dietary supplement | Amlitelimab dose 1 + SIGE, Placebo + SIGE |
| Gluten-free product (GFP)Pharmaceutical form: Capsule Route of administration: Oral | Dietary supplement | Amlitelimab dose 1 + Gluten-free product (GFP), Amlitelimab dose 2 + GFP, Amlitelimab dose 3 + GFP, Placebo + GFP |
Primary outcome
Change in Villus Height to Crypt Depth Ratio (Vh:Cd) from baseline to Week 28
Time frame: Baseline to Week 28
Change in Vh:Cd ratio.
6 secondary outcomes
Change in Celiac Disease Symptom Diary (CDSD) Gastrointestinal (GI) symptom severity score
Time frame: Baseline to Week 28
Percentage of participants who experienced treatment-emergent adverse events (TEAEs), including serious adverse events (SAEs) and adverse events of special interest (AESI) during the placebo-controlled treatment period and the long-term extension
Time frame: Baseline to Week 168
Percentage of participants with potentially clinically significant abnormalities (PCSA) for vital signs and clinical laboratory assessments during the placebo-controlled treatment period and the long-term extension
Time frame: Baseline to Week 168
Percentage of participants discontinued from study treatment due to TEAEs during the placebo-controlled treatment period and the long-term extension
Time frame: Baseline to Week 168
Serum amlitelimab concentrations measured at prespecified timepoints
Time frame: Baseline to Week 168
Incidence of antidrug antibodies (ADAs) of amlitelimab
Time frame: Baseline to Week 168
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Aug 2026.
- DRI17963 Plain Language Results SummaryLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
118 sites in 21 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Amlitelimab, SIGE and Gluten-free product (GFP) in people with Coeliac Disease and Celiac Disease, run by Sanofi at 118 sites in 21 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 31 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 118 sites in United States, Argentina, Spain, Brazil, Chile and 16 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Villus Height to Crypt Depth Ratio (Vh:Cd) from baseline to Week 28 (time frame: Baseline to Week 28). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Aug 2026.