A Study to Investigate Safety, Tolerability and Clinical Response With SAR441566 Compared With Placebo in Participants With Mild to Moderate Psoriasis

NCT05453942 | Completed Phase 1

• 3 other identifiers: PDY16918U1111-1275-09152022-000850-27
• Study Type: interventional
• Target: 38
• Locations: 1 country
• Sites: 1

Brief Summary

This is a parallel, Phase 1, single center, 2-arm, double-blind, randomized, placebo-controlled with a ratio 2 active: 1 placebo study for treatment of mild to moderate psoriasis participants. Approximately 36 participants (24 in the SAR441566 group and 12 in the placebo group) are to be enrolled to have a total of 33 evaluable participants (22 in the SAR441566 group and 11 in the placebo group). The objective of this study is primarily to evaluate the tolerability and safety and secondarily the clinical response over 4-week oral treatment with SAR441566 in participants with mild to moderate psoriasis. The clinical response is measured by the relative change from baseline in Total Lesion Severity Score (TLSS). The study comprises an up to 4-week screening period, a 4-week treatment period with SAR441566 or placebo. The end-of-study visit will be carried out 10 ±3 days after the last investigational medicinal product administration. The frequency of visits is once a week during the treatment period.

Conditions

Psoriasis

Outcome Measures

Primary Outcomes (1)

• Number of participants with treatment-emergent adverse events (TEAE) including SAE and AESI

  Assessment of adverse events (AE) / treatment-emergent adverse events (TEAE) including SAE and AESI

  Up to 69 days

Secondary Outcomes (1)

• Percent change from baseline in the target lesion severity score (TLSS) to weeks 2 and 4

  Baseline to week 4

Study Arms (2)

SAR441566

EXPERIMENTAL

Repeated dose of SAR441566 administered twice a day (BID) for 4 weeks under fed conditions

Drug: SAR441566

Placebo

PLACEBO COMPARATOR

Repeated dose of matching placebo administered twice a day (BID) for 4 weeks under fed condition

Drug: Placebo

Interventions

SAR441566 DRUG

Repeated dose of SAR441566 administered twice a day (BID) for 4 weeks under fed conditions

SAR441566

Placebo DRUG

Repeated dose of matching placebo administered twice a day (BID) for 4 weeks under fed condition

Placebo

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Male or female with mild to moderate psoriatic participants, between 18 and 65 years of age, inclusive.
• Body mass index between 18.0 and 35.0 kg/m2, inclusive (body weight not under 50.0 Kg).
• Female participants who are only postmenopausal or are sterilized (e.g post-bilateral surgical oophorectomy not linked to a history of cancer) can be included in the study.
• Participant must be in good health (except for psoriasis) as judged by the investigator, based on medical history, physical examination, vital signs, ECG, clinical laboratories, and urinalysis.
• Confirmed diagnosis of chronic plaque-type psoriasis, diagnosed at least 6 months prior to screening with mild to moderate severity, defined as PASI ≤ 16.
• Participant must have at least two lesions with TLSS≥4 at both screening and baseline excluding the scalp.

You may not qualify if:

• Pre-existing signs of skin atrophy, telangiectasia or striae in the affected area
• Use of systemic immunosuppressants within 4 weeks of entering the study and during the entire study duration
• Current evidence of non-plaque forms of psoriasis (e.g., erythrodermic, guttate or pustular), psoriatic arthritis
• Currently evidence or suspicion of drug-induced psoriasis (e.g., new onset or exacerbation of psoriasis from beta blockers, calcium channel blockers, or lithium)
• Use of any of the following therapies within 4 weeks prior to Baseline (Day 1): systemic non-biologic psoriasis therapies (including, but not limited to): psoralens and ultraviolet A (PUVA) therapy, cyclosporine, methotrexate, azathioprine, corticosteroids, apremilast, tofacitinib, oral retinoids, mycophenolate mofetil, sirolimus; or phototherapy (including UVB or self-treatment with tanning beds or therapeutic sunbathing) or topical psoriasis therapy with psoralens
• Use of topical corticosteroid preparations (except hydrocortisone 1%), topical calcineurin inhibitors, or other topical preparations with immunomodulatory properties within 2 weeks prior to randomization (Day 1)
• Prior use of any biologicals for treatment of psoriasis
• Participants who received any live vaccination within 3 months, any initial non-live vaccination within 30 days or non-live booster vaccination within 14 days of first IMP administration or intend to receive any vaccination during the study.
• Evidence of any clinically significant, severe or unstable, acute or chronically progressive, uncontrolled infection or medical condition (including an ongoing biological proven SARS-CoV-2 infection and recurrent infection) or any condition that may affect participant safety in the judgment of the Investigator including participants who are not adequately vaccinated against a SARS-CoV-2 infection according to local regulations.
• Opportunistic infections within 6 months before randomization (Day 1)
• The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial.

Sponsors & Collaborators

• Sanofi: lead

Study Sites (1)

Investigational Site Number :2760001

Berlin, 10117, Germany

Location

Related Links

• PDY16918 Plain Language Results Summary

MeSH Terms

Conditions

Psoriasis

Condition Hierarchy (Ancestors)

Skin Diseases, Papulosquamous; Skin Diseases; Skin and Connective Tissue Diseases

Study Officials

• Clinical Sciences & Operations

  Sanofi

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 7, 2022
• First Posted: July 12, 2022
• Study Start: July 12, 2022
• Primary Completion: February 9, 2023
• Study Completion: February 9, 2023
• Last Updated: September 25, 2025

Record last verified: 2025-09

Data Sharing

• IPD Sharing: Will share

Locations

DE (1)