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SAR447971 First-in-human Study

A Randomized, First-in-human, Double-blind, Placebo-controlled Study of the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Single Ascending Oral Doses (SAD20411) and Multiple Ascending Doses (MAD20412) of SAR447971 With Food Effect Evaluation in Healthy Participants and of Multiple Ascending Doses (MAD24339) of SAR447971 in Patients With Hidradenitis Suppurativa

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07629336
Enrollment
114
Registered
2026-06-05
Start date
2026-05-26
Completion date
2028-02-16
Last updated
2026-06-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers, Hidradenitis

Brief summary

SAD20411 is a single-center, first-in-human, double-blind, randomized, placebo-controlled, sequential single ascending dose study in healthy male and/or female participants with a pilot food effect investigation. MAD20412 is a single-center, double-blind, randomized, placebo-controlled, sequential multiple ascending dose study in healthy male and/or female participants. MAD24339 is an open-label, sequential multiple ascending dose study in hidradenitis suppurativa (HS) male and/or female participants. Number of participants - The total expected number of healthy participants is approximately 94 and the total number of HS participants is expected to be approximately 20. * SAD20411 will enroll up to 46 participants * MAD20412 will enroll up to 48 participants * MAD24339 will enroll up to 20 participants Duration of study - The anticipated study duration per participant is up to approximately 10 weeks in SAD20411 and MAD20412, and up to approximately 12 weeks in MAD24339.

Interventions

DRUGSAR447971

Pharmaceutical form: Tablet Route of administration: Oral

DRUGPlacebo

Pharmaceutical form: Tablet Route of administration: Oral

Sponsors

Sanofi
Lead SponsorINDUSTRY
Kymera Therapeutics, Inc.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

For participation in SAD20411/MAD20412: * Male and/or female participant, between 18 and 55 years of age, inclusive at the time of signing the ICF. * Appearing healthy by a comprehensive clinical assessment (detailed medical history and complete physical examination). For participation in MAD24339: * Age ≥18 and ≤65 years of age at the time of signing informed consent. * A diagnosis of HS made by a dermatologist at least 6 months prior to baseline visit. * HS lesions present in at least 2 distinct anatomic areas (e. g., left and right axilla; or left axilla and left inguino-crural fold), one of which must be Hurley Stage II or Hurley Stage III. * Total AN count of ≥4 at the baseline visit. - Draining tunnel count of ≤20 at the baseline visit.

Exclusion criteria

For participation in SAD20411/MAD20412: \- Any history or presence of clinically relevant cardiovascular, pulmonary, gastrointestinal, dermatologic, hepatic, renal, metabolic, hematological, neurological, osteomuscular, articular, psychiatric, systemic, ocular, gynecologic (if female) or signs of acute illness. Active or chronic infection requiring systemic treatment within 4 weeks prior to baseline. Known history of immunosuppression or suspected current immunosuppression. For participation in MAD24339: * Any active skin disease or condition other than HS (including but not limited to inflammatory skin diseases and cutaneous infections) that may interfere with assessment of HS. * Any active or chronic infection requiring systemic treatment (eg, antibiotics, antivirals, antifungals, antihelminthics) within 30 days prior to baseline. * Use of prescription topical therapies for the treatment of HS within 14 days prior to the baseline visit. - Treatment with systemic antibiotics for HS within 14 days prior to the baseline visit. - Non-biologic systemic therapies with potential therapeutic impact on HS \<28 days or five half-lives prior to baseline visit. * Any history of prior treatment with any systemic biologic with a potential therapeutic impact on HS. The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frame
SAD20411: Incidence of treatment emergent adverse events (TEAEs)Day 1 to Day 15
SAD20411: Incidence of clinically significant abnormalities in clinical laboratory evaluations (hematology, biochemistry, coagulation, urinalysis)Day 1 to Day 15
SAD20411: Incidence of clinically significant abnormalities in vital signsDay 1 to Day 15
SAD20411: Incidence of clinically significant abnormalities in ECG (heart rate, PR, QRS, QT, QTcF)Day 1 to Day 15
MAD20412: Incidence of treatment emergent adverse events (TEAEs)Day 1 to Dat 29
MAD20412: Incidence of clinically significant abnormalities in clinical laboratory evaluations (hematology, biochemistry, coagulation, urinalysis)Day 1 to Dat 29
MAD20412: Incidence of clinically significant abnormalities in vital signsDay 1 to Dat 29
MAD20412: Incidence of clinically significant abnormalities in ECG (heart rate, PR, QRS, QT, QTcF)Day 1 to Dat 29
MAD24339: Incidence of treatment emergent adverse events (TEAEs)Day 1 to Day 42
MAD24339: Incidence of clinically significant abnormalities in clinical laboratory evaluations (hematology, biochemistry, coagulation, urinalysis)Day 1 to Day 42
MAD24339: Incidence of clinically significant abnormalities in vital signsDay 1 to Day 42
MAD24339: Incidence of clinically significant abnormalities in ECG (heart rate, PR, QRS, QT, QTcF)Day 1 to Day 42

Secondary

MeasureTime frameDescription
SAD20411: PK parameter - CmaxDay 1 to Day 15Maximum serum concentration observed.
SAD20411: PK parameter - tmaxDay 1 to Day 15Time to reach Cmax.
SAD20411:PK parameter - AUCDay 1 to Day 15Area under the plasma concentration versus time curve extrapolated to infinity.
SAD20411: PK parameter - Cmax in fed and fasted stateDay 1 to Day 15Maximum serum concentration observed.
SAD20411: PK parameter - tmax in fed and fasted stateDay 1 to Day 15Time to reach Cmax.
SAD20411: PK parameter - AUC in fed and fasted stateDay 1 to Day 15Area under the plasma concentration versus time curve extrapolated to infinity.
MAD20412: PK parameter - CmaxDay 1 to Dat 29Maximum serum concentration observed.
MAD20412: PK parameter - tmaxDay 1 to Dat 29Time to reach Cmax.
MAD20412: PK parameter - AUC0-tauDay 1 to Dat 29Area under the plasma concentration versus time curve calculated using the trapezoidal method over the dosing interval
MAD24339: IRAK4 expression in skin biopsies before and after repeated doses of SAR447971Day 1 to Day 42
MAD24339: Plasma SAR447971 concentrations at pre-specified visits and time pointsDay 1 to Day 42

Countries

Netherlands

Contacts

CONTACTTrial Transparency email recommended (Toll free for US & Canada)
Contact-US@sanofi.com800-633-1610

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 6, 2026