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SNY 6-K

Sanofi (SNY)

6-K 2025-01-14 For: 2025-01-14
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Added on April 10, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OFFOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2025

Commission File Number: 001-31368

SANOFI

(Translation ofregistrant’s name into English)

46, avenue dela Grande Armée, 75017 Paris, FRANCE

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☒   Form 40-F ☐

In January 2025, Sanofi published the press releases attached hereto as Exhibits 99.1 and 99.2 which are incorporated herein by reference.

Exhibit Index

Exhibit<br> No. Description
Exhibit 99.1 Press Release dated January 9, 2025 : New Sarclisa subcutaneous formulation met co-primary endpoints in the IRAKLIA phase 3 study in multiple myeloma
Exhibit 99.2 Press Release dated January 13, 2025 : Sarclisa obtains first approval in China for the treatment of adult patients with relapsed or refractory multiple myeloma

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Dated: January 14, 2025 SANOFI
By /s/ Alexandra Roger
Name: Alexandra Roger
Title: Head of Legal Corporate & Finance

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EX-99.1

Exhibit 99.1

Press Release

New Sarclisa subcutaneous formulation met co-primary endpoints in theIRAKLIA phase 3 study in multiple myeloma

Sarclisa SC formulation added to Pd for the treatment of R/R MM met the<br>co-primary endpoints in the IRAKLIA phase 3 study, demonstrating non-inferiority compared to Sarclisa IV
IRAKLIA is the first global phase 3 study to evaluate the SC administration of a cancer treatment via an OBDS<br>
--- ---
OBDS is an alternative delivery method designed to improve the patient experience and currently available SC<br>administration
--- ---

Paris, January 9, 2025. Results from the investigational, randomized, open-label IRAKLIA phase 3 study demonstrated that Sarclisa administered at a fixed dose subcutaneously (SC) via an on-body delivery system (OBDS) in combination with pomalidomide and dexamethasone (Pd) met its co-primary endpoints of non-inferior objective response rate (ORR) and observed concentration before dosing (C trough) at steady state compared to intravenous (IV) Sarclisa administered at a weight-based dose in combination with Pd in patients with relapsed or refractory multiple myeloma (R/R MM). Key secondary endpoints, including very good partial response (VGPR), incidence rate of infusion reactions and C trough at cycle 2 were also achieved. The study is ongoing, and the full results will be presented at a forthcoming medical meeting.

Sikander Ailawadhi, MD

Professor of Medicine, Division of Hematology/Oncology at Mayo Clinic Florida and principal investigator of the study

“The consistent overall response rate and comparable efficacy and safety profile observed in the IRAKLIA studyfor subcutaneous Sarclisa represent an exciting advancement, offering insight into a potential new administration option for patients. The results from IRAKLIA, in patients with relapsed or refractory multiple myeloma, support the potential of an on-body delivery system to help ease the delivery of a new formulation without impacting patient outcomes.”

The IRAKLIA study was conducted using Enable Injections’ enFuse^®^ hands-free OBDS, which was designed to administer high-volume medicines subcutaneously through an automated drug delivery technology. The enFuse device leverages a hidden and retractable needle that is thinner compared to commonly used SC injection needles.

Houman Ashrafian, MD, PhD

Executive Vice President, Head of Research and Development at Sanofi

“We are fueled by our focus on innovation and finding best-in-class solutions to help ease the burden of disease for patients. The IRAKLIA study results are a prime example of what’s driving our scientific engine. Being able to possibly bring a novel optionthat helps reduce time in a healthcare facility is driven by our patient and provider-centric mindset. We look forward to sharing full results and working to bring this new advancement to the multiple myeloma community.”

Additional studies evaluating Sarclisa SC formulations across different combinations and lines of therapy are ongoing. The safety and efficacy of Sarclisa SC and the enFuse device have not been evaluated by any regulatory authority outside of their approved indications. Regulatory submissions in the US and in the EU are planned during the first half of 2025.

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About the IRAKLIA study

IRAKLIA is a randomized, open-label, pivotal phase 3 study evaluating the non-inferiority of Sarclisa SC formulation administered at a fixed dose subcutaneously via an OBDS versus weight-based dosed Sarclisa IV in combination with Pd in adult patients with R/R MM. The study enrolled 531 patients across 252 global sites, who were equally randomized to receive Sarclisa SC or IV in combination with Pd for 28-day cycles until disease progression, unacceptable adverse events (AEs), participant request to discontinue therapy or any other reason, whichever came first. In the SC arm, Sarclisa was administered at a fixed dose SC weekly for four weeks during the first cycle and every two weeks for subsequent cycles. In the IV arm, Sarclisa was administered at a weight-based dose via IV infusion weekly for four weeks during the first cycle and every two weeks for subsequent cycles. The study enrolled adult patients with MM who have received at least one prior line of therapy, including lenalidomide and a proteasome inhibitor.

The co-primary outcomes being assessed are ORR, defined as the proportion of patients with stringent complete response, complete response, VGPR, and partial response (PR) according to the 2016 IMWG criteria assessed by Independent Review Committee (IRC), and observed C trough at steady state, defined as observed Sarclisa plasma concentrations.

About Enable Injections

Based in the US (Cincinnati, Ohio), Enable Injections is a global healthcare innovation company committed to improving the patient treatment experience through the development and manufacturing of enFuse. enFuse is an innovative wearable drug delivery platform that is designed to deliver large volumes of pharmaceutical and biologic therapeutics via subcutaneous administration, with the aim of improving convenience, supporting superior outcomes, and advancing healthcare system economics. For more information, visit https://enableinjections.com.

About Sarclisa

Sarclisa (isatuximab) is a CD38 monoclonal antibody that binds to a specific epitope on the CD38 receptor on MM cells, inducing distinct antitumor activity. It is designed to work through multiple mechanisms of action including programmed tumor cell death (apoptosis) and immunomodulatory activity. CD38 is highly and uniformly expressed on the surface of MM cells, making it a target for antibody-based therapeutics such as Sarclisa. In the US, the non-proprietary name for Sarclisa is isatuximab-irfc, with irfc as the suffix designated in accordance with nonproprietary naming of biological products guidance for industry issued by the US FDA.

Currently, Sarclisa is approved in more than 50 countries, including the US and EU, across two indications; Sarclisa is approved under an additional indication in the US. Based on the ICARIA-MM phase 3 study, Sarclisa is approved in combination with Pd for the treatment of patients with R/R MM who have received ≥2 prior therapies, including lenalidomide and a proteasome inhibitor, and who progressed on last therapy. Based on the IKEMA phase 3 study, Sarclisa is also approved in 50 countries in combination with carfilzomib and dexamethasone, including in the US for the treatment of patients with R/R MM who have received 1–3 prior lines of therapy and in the EU for patients with MM who have received at least 1 prior therapy. In the US, Sarclisa is approved in combination with bortezomib, lenalidomide, and dexamethasone (VRd) as a front-line treatment option for adult patients with newly diagnosed multiple myeloma (NDMM) who are not eligible for autologous stem cell transplant (ASCT), based on the IMROZ phase 3 study. On November 14, 2024, the European Medicines Agency (EMA)’s Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion recommending the approval of Sarclisa-VRd in this patient population. A final decision is expected in the coming months.

Sanofi continues to advance Sarclisa as part of a patient-centric clinical development program, which includes several phase 2 and phase 3 studies across the MM treatment continuum spanning six potential indications. Further clinical studies evaluating a subcutaneous administration method for Sarclisa are ongoing.

In striving to become the number one immunoscience company globally, Sanofi remains committed to advancing oncology innovation. Through focused strategic decisions the company has reshaped and prioritized its pipeline, leveraging its expertise in immunoscience to drive progress. Efforts are centered on difficult-to-treat often rare cancers such as select hematologic malignancies and solid tumors with critical unmet needs, including multiple myeloma, acute myeloid leukemia, certain types of lymphomas, as well as gastrointestinal and lung cancers.

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For more information on Sarclisa clinical studies, please visit www.clinicaltrials.gov.

About Sanofi

We are an innovative global healthcare company, driven by one purpose: we chase the miracles of science to improve people’s lives. Our team, across the world, is dedicated to transforming the practice of medicine by working to turn the impossible into the possible. We provide potentially life-changing treatment options and life-saving vaccine protection to millions of people globally, while putting sustainability and social responsibility at the center of our ambitions.

Sanofi is listed on EURONEXT: SAN and NASDAQ: SNY

Media Relations

Sandrine Guendoul  | + 33 6 25 09 14 25 | [email protected]

Evan Berland

| +1 215 432 0234 | [email protected]

Nicolas Obrist  | + 33 6 77 21 27 55 | [email protected]

Léo Le Bourhis | + 33 6 75 06 43 81 |

[email protected]

VictorRouault  | + 33 6 70 93 71 40 | [email protected]

Timothy Gilbert  | + 1 516 521 2929 | [email protected]

Investor Relations

Thomas Kudsk Larsen |+ 44 7545 513 693 | [email protected]

Alizé Kaisserian  | + 33 6 47 04 12 11 | [email protected]

FelixLauscher  | + 1 908 612 7239 | [email protected]

Keita Browne  | + 1 781 249 1766 | [email protected]

Nathalie Pham  | + 33 7 85 93 30 17 |

[email protected]

Tarik Elgoutni| + 1 617 710 3587 | [email protected]

Thibaud Châtelet | + 33 6 80 80 89 90 | [email protected]

Sanofi forward-looking statements

This press releasecontains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts. These statements include projections and estimates regardingthe marketing and other potential of the product, or regarding potential future revenues from the product. Forward-looking statements are generally identified by the words “expects”, “anticipates”, “believes”,“intends”, “estimates”, “plans” and similar expressions. Although Sanofi’s management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned thatforward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of Sanofi, that could cause actual results and developments to differ materially fromthose expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include among other things, unexpected regulatory actions or delays, or government regulation generally, that could affectthe availability or commercial potential of the product, the fact that product may not be commercially successful, the uncertainties inherent in research and development, including future clinical data and analysis of existing clinical data relatingto the product, including post marketing, unexpected safety, quality or manufacturing issues, competition in general, risks associated with intellectual property and any related future litigation and the ultimate outcome of such litigation, andvolatile economic and market conditions, and the impact that pandemics or other global crises may have on us, our customers, suppliers, vendors, and other business partners, and the financial condition of any one of them, as well as on our employeesand on the global economy as a whole. The risks and uncertainties also include the uncertainties discussed or identified in the public filings with the SEC and the AMF made by Sanofi, including those listed under “Risk Factors” and“Cautionary Statement Regarding Forward-Looking Statements” in Sanofi’s annual report on Form 20-F for the year ended December 31, 2023. Other than as required by applicable law, Sanofidoes not undertake any obligation to update or revise any forward-looking information or statements.

All trademarks mentioned in this press release are theproperty of the Sanofi group.

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EX-99.2

Exhibit 99.2

Press Release

Sarclisa obtains first approval in China for the treatment of adult patients with relapsed orrefractory multiple myeloma

Approval based on positive pivotal ICARIA-MM phase 3 study using the<br>China-based IsaFiRsT real-world study as bridging data, which demonstrated Sarclisa and the standard treatment Pd, improved responses and long-term outcomes compared to Pd alone in R/R MM patients^^
Sarclisa-Pd is currently recommended by the Chinese Society of Clinical<br>Oncology (CCSCO) and Chinese Anti-Cancer Association (CACA) treatment guidelines for this patient population
--- ---

Paris,January 13, 2025. The National Medical Products Administration (NMPA) in China has approved Sarclisa, an anti-CD38 medicine, in combination with pomalidomide and dexamethasone (Pd) for the treatment of adult patients with multiple myeloma (MM) who have received at least one prior line of therapy, including lenalidomide and a proteasome inhibitor.

This approval is based on results from the pivotal ICARIA-MM phase 3 study, using the China-based IsaFiRsT real-world study as bridging data. The ICARIA-MM study demonstrated Sarclisa in combination with Pd significantly reduced the risk of disease progression or death by 40% (HR 0.596, 95% CI 0.44-0.81, p=0.001), and resulted in a clinically meaningful, 6.9-month improvement in overall survival (OS) (HR=0.78; log-rank 1-sided P=0.0319), compared to Pd alone. Additionally, the IsaFiRsT study, which is the first real-world study for the registration of an anti-CD38 therapy in combination with Pd in China, showed an overall response rate (ORR) of 82.6% among relapsed or refractory multiple myeloma (R/R MM) adult patients.

Olivier Nataf

Global Head, Oncology

“This approval marks an important milestone for Sanofi in China. The results of theICARIA-MM phase 3 study, coupled with the real-world IsaFiRsT study, highlight the benefit of Sarclisa for patients living with multiple myeloma and the importance of innovative regulatory pathways for timelyaccess to different treatments. We look forward to continuing to build strong partnerships with the medical community, local companies, and authorities in China as we work to bring more innovative treatments to patients.”

Through the Lecheng Pilot for real-world data application, the NMPA has increasingly used real-world evidence (RWE) to help accelerate the review and approval of innovative therapies and medical devices in China. Sarclisa was one of the first three treatments authorized for real-world studies as part of the pilot program and is the first blood cancer treatment approved based on RWE, in addition to clinical data.

In addition to the NMPA approval, the Chinese Society of Clinical Oncology (CSCO) and Chinese Anti-Cancer Association (CACA) guidelines include Sarclisa-Pd as a “Category I Recommendation” and the “Preferred Option” for the treatment of patients with first-relapsed MM. Beyond R/R MM, a regulatory submission for Sarclisa in combination with bortezomib, lenalidomide and dexamethasone (VRd) for newly diagnosed multiple myeloma (NDMM) in adult patients not eligible for autologous stem cell transplant, is also under review in China with a final decision expected in the coming months.

As one of the first multinational companies to enter China in 1982, Sanofi is committed to accelerating the introduction of innovative medicines and vaccines into China, aiming to transform the practice of medicine for the benefit of more Chinese people.

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About the ICARIA-MM study

ICARIA-MM was a pivotal phase 3 randomized, open-label, multi-center trial evaluating Sarclisa in combination with Pd versus Pd alone in patients with R/R MM. The study enrolled 307 patients with R/R MM across 96 centers spanning 24 countries. Overall, patients had received a median of three prior lines of anti-myeloma therapies, including at least two consecutive cycles of lenalidomide and a proteasome inhibitor given alone or in combination.

During the trial, Sarclisa was administered by intravenous infusion at a dose of 10mg/kg once weekly for four weeks, then every other week for 28-day cycles in combination with standard doses of Pd for the duration of treatment. The primary endpoint of ICARIA-MM was progression-free survival (PFS). Key secondary endpoints included ORR and OS.

About the IsaFiRsT study

The IsaFiRsT study was a single-arm, observational, prospective, real-world study evaluating Sarclisa in combination with Pd in patients with R/R MM. The study enrolled 24 patients with R/R MM at one site in China. Overall, patients received a median of three prior lines of therapy, including lenalidomide and a proteasome inhibitor, and had measurable serum or urine M-protein.

During the trial, Sarclisa was administered through an intravenous infusion at a dose of 10mg/kg once weekly for four weeks, then every other week for 28-day cycles in combination with standard doses of Pd for the duration of treatment. Treatment continued until disease progression or unacceptable toxicity. The primary endpoint of IsaFiRsT was ORR. Key secondary endpoints included PFS, OS, duration of response (DOR) and safety.

About Sarclisa

Sarclisa (isatuximab) is a CD38 monoclonal antibody that binds to a specific epitope on the CD38 receptor on MM cells, inducing distinct antitumor activity. It is designed to work through multiple mechanisms of action including programmed tumor cell death (apoptosis) and immunomodulatory activity. CD38 is highly and uniformly expressed on the surface of MM cells, making it a target for antibody-based therapeutics such as Sarclisa. In the US, the non-proprietary name for Sarclisa is isatuximab-irfc, with irfc as the suffix designated in accordance with nonproprietary naming of biological products guidance for industry issued by the US FDA.

Currently, Sarclisa is approved in more than 50 countries, including the US and EU, across two indications; Sarclisa is approved under an additional indication in the US. Based on the ICARIA-MM phase 3 study, Sarclisa is approved in combination with Pd for the treatment of patients with R/R MM who have received ≥2 prior therapies, including lenalidomide and a proteasome inhibitor, and who progressed on last therapy. Based on the IKEMA phase 3 study, Sarclisa is also approved in 50 countries in combination with carfilzomib and dexamethasone, including in the US for the treatment of patients with R/R MM who have received 1–3 prior lines of therapy and in the EU for patients with MM who have received at least 1 prior therapy. In the US, Sarclisa is approved in combination with VRd as a front-line treatment option for adult patients with NDMM not eligible for transplant based on the IMROZ phase 3 study. On November 14, 2024, the European Medicines Agency (EMA)’s Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion recommending the approval of Sarclisa-VRd in this patient population. A final decision is expected in the coming months.

Sanofi continues to advance Sarclisa as part of a patient-centric clinical development program, which includes several phase 2 and phase 3 studies across the MM treatment continuum spanning six potential indications. In addition, the company is evaluating a subcutaneous administration method for Sarclisa in clinical studies. The safety and efficacy of Sarclisa has not been evaluated by any regulatory authority outside of its approved indications and methods of delivery.

In striving to become the number one immunoscience company globally, Sanofi remains committed to advancing oncology innovation. Through focused strategic decisions the company has reshaped and prioritized its pipeline, leveraging its expertise in immunoscience to drive progress. Efforts are centered on difficult-to-treat often rare cancers such as select hematologic malignancies and solid tumors with critical unmet needs, including multiple myeloma, acute myeloid leukemia, certain types of lymphomas, as well as gastrointestinal and lung cancers.

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For more information on Sarclisa clinical studies, please visit www.clinicaltrials.gov.

About Sanofi

We are an innovative global healthcare company, driven by one purpose: we chase the miracles of science to improve people’s lives. Our team, across the world, is dedicated to transforming the practice of medicine by working to turn the impossible into the possible. We provide potentially life-changing treatment options and life-saving vaccine protection to millions of people globally, while putting sustainability and social responsibility at the center of our ambitions.

Sanofi is listed on EURONEXT: SAN and NASDAQ: SNY

Media Relations

SandrineGuendoul  | +33 6 25 09 14 25 | [email protected]

Evan Berland | +1 215 432 0234 | [email protected]

Nicolas Obrist  | +33 6 77 21 27 55 |

[email protected]

Léo LeBourhis | +33 6 75 06 43 81 | [email protected]

Victor Rouault  | +33 6 70 93 71 40

[email protected]

TimothyGilbert  | +1 516 521 2929 | [email protected]

Investor Relations

Thomas KudskLarsen |+44 7545 513 693 | [email protected]

Alizé Kaisserian  | +33 6 47 04 12 11 |

[email protected]

FelixLauscher  | +1 908 612 7239 | [email protected]

Keita Browne  | +1 781 249 1766 | [email protected]

Nathalie Pham  | +33 7 85 93 30 17 |

[email protected]

Tarik Elgoutni| +1 617 710 3587 | [email protected]

Thibaud Châtelet | +33 6 80 80 89 90 | [email protected]

Sanofi forward-looking statements

This press releasecontains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts. These statements include projections and estimates regardingthe marketing and other potential of the product, or regarding potential future revenues from the product. Forward-looking statements are generally identified by the words “expects”, “anticipates”, “believes”,“intends”, “estimates”, “plans” and similar expressions. Although Sanofi’s management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned thatforward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of Sanofi, that could cause actual results and developments to differ materially fromthose expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include among other things, unexpected regulatory actions or delays, or government regulation generally, that could affectthe availability or commercial potential of the product, the fact that product may not be commercially successful, the uncertainties inherent in research and development, including future clinical data and analysis of existing clinical data relatingto the product, including post marketing, unexpected safety, quality or manufacturing issues, competition in general, risks associated with intellectual property and any related future litigation and the ultimate outcome of such litigation, andvolatile economic and market conditions, and the impact that pandemics or other global crises may have on us, our customers, suppliers, vendors, and other business partners, and the financial condition of any one of them, as well as on our employeesand on the global economy as a whole. The risks and uncertainties also include the uncertainties discussed or identified in the public filings with the SEC and the AMF made by Sanofi, including those listed under “Risk Factors” and“Cautionary Statement Regarding Forward-Looking Statements” in Sanofi’s annual report on Form 20-F for the year ended December 31, 2023. Other than as required by applicable law, Sanofidoes not undertake any obligation to update or revise any forward-looking information or statements.

All trademarks mentioned in this press release are theproperty of the Sanofi group.

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