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Rebif® new formulation (RNF)

EMD Serono Research & Development Institute, Inc. · Phase 3 active Small molecule ✓ Verified Jun 2026

Rebif® new formulation (RNF) is a Interferon Small molecule drug developed by EMD Serono Research & Development Institute, Inc.. It is currently in Phase 3 development for Relapsing forms of multiple sclerosis.

Rebif new formulation (RNF) is an interferon beta-1a used to treat multiple sclerosis.

Rebif's new formulation (RNF) is a human interferon beta-1a used to treat Relapsing Remitting Multiple Sclerosis (RRMS) and Multiple Sclerosis. The new formulation is also free from human serum albumin (HSA) and fetal bovine serum (FBS).

Likelihood of approval
59.3% vs 58.3% industry baseline
If approved by FDA: likely 2028–2030
Steps remaining: NDA/BLA submission
Confidence: High
Why this estimate
  • Baseline phase 3 → approval rate +58.3pp
    Industry-wide phase 3 drugs reach approval ~58.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
  • Immunology slight uplift +1.0pp
    Mature endpoint landscape (ACR, DAS28, PASI) makes immunology approvals slightly more predictable.
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2028–2030
EMA EU 2029–2031 +0.7 yr
MHRA GB 2029–2031 +0.7 yr
Health Canada CA 2029–2032 +0.9 yr
TGA AU 2029–2032 +1.2 yr
PMDA JP 2029–2032 +1.5 yr
NMPA CN 2030–2033 +2.3 yr
MFDS KR 2029–2032 +1.4 yr
CDSCO IN 2029–2033 +1.8 yr
ANVISA BR 2030–2033 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameRebif® new formulation (RNF)
SponsorEMD Serono Research & Development Institute, Inc.
Drug classInterferon
TargetIFNAR
ModalitySmall molecule
Therapeutic areaImmunology
PhasePhase 3

Mechanism of action

It works by reducing inflammation in the central nervous system, which helps to slow the progression of the disease. Interferon beta-1a is a protein that helps to regulate the immune system and reduce the severity of MS symptoms. By reducing inflammation, Rebif RNF can help to slow the progression of disability and reduce the frequency of relapses.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Frequently asked questions about Rebif® new formulation (RNF)

What is Rebif® new formulation (RNF)?

Rebif® new formulation (RNF) is a Interferon drug developed by EMD Serono Research & Development Institute, Inc., indicated for Relapsing forms of multiple sclerosis.

How does Rebif® new formulation (RNF) work?

Rebif new formulation (RNF) is an interferon beta-1a used to treat multiple sclerosis.

What is Rebif® new formulation (RNF) used for?

Rebif® new formulation (RNF) is indicated for Relapsing forms of multiple sclerosis.

Who makes Rebif® new formulation (RNF)?

Rebif® new formulation (RNF) is developed by EMD Serono Research & Development Institute, Inc. (see full EMD Serono Research & Development Institute, Inc. pipeline at /company/emd-serono-research-development-institute-inc).

What drug class is Rebif® new formulation (RNF) in?

Rebif® new formulation (RNF) belongs to the Interferon class. See all Interferon drugs at /class/interferon.

What development phase is Rebif® new formulation (RNF) in?

Rebif® new formulation (RNF) is in Phase 3.

What are the side effects of Rebif® new formulation (RNF)?

Common side effects of Rebif® new formulation (RNF) include Flu-like symptoms, Injection site reactions, Fatigue, Headache, Nausea.

What does Rebif® new formulation (RNF) target?

Rebif® new formulation (RNF) targets IFNAR and is a Interferon.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing