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Baricitinib + dexamethasone

Instituto de Investigación Hospital Universitario La Paz · Phase 3 active Small molecule ✓ Verified May 2026

Baricitinib + dexamethasone is a JAK inhibitor + corticosteroid combination Small molecule drug developed by Instituto de Investigación Hospital Universitario La Paz. It is currently in Phase 3 development for COVID-19 (severe respiratory disease), Severe inflammatory respiratory conditions.

Baricitinib inhibits JAK1/JAK2 kinases to suppress inflammatory cytokine signaling, while dexamethasone provides additional glucocorticoid-mediated immunosuppression.

Baricitinib in combination with dexamethasone is being studied as a potential treatment for various conditions, including SARS-CoV-2 Infection, COVID-19, and COVID-19 Severe Respiratory Failure. The exact mechanism of action of baricitinib + dexamethasone is not specified in the provided facts, but baricitinib is known to be a Janus kinase (JAK) inhibitor, according to ChEMBL.

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 nameBaricitinib + dexamethasone
SponsorInstituto de Investigación Hospital Universitario La Paz
Drug classJAK inhibitor + corticosteroid combination
TargetJAK1/JAK2 + glucocorticoid receptor
ModalitySmall molecule
Therapeutic areaImmunology / Infectious Disease
PhasePhase 3

Mechanism of action

Baricitinib is a JAK inhibitor that blocks Janus kinase signaling, reducing production of pro-inflammatory cytokines like IL-6 and TNF-α. Dexamethasone is a corticosteroid that suppresses immune cell activation and inflammatory mediator release. The combination targets multiple points in the inflammatory cascade, particularly relevant in severe inflammatory conditions such as COVID-19 or severe respiratory infections.

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 Baricitinib + dexamethasone

What is Baricitinib + dexamethasone?

Baricitinib + dexamethasone is a JAK inhibitor + corticosteroid combination drug developed by Instituto de Investigación Hospital Universitario La Paz, indicated for COVID-19 (severe respiratory disease), Severe inflammatory respiratory conditions.

How does Baricitinib + dexamethasone work?

Baricitinib inhibits JAK1/JAK2 kinases to suppress inflammatory cytokine signaling, while dexamethasone provides additional glucocorticoid-mediated immunosuppression.

What is Baricitinib + dexamethasone used for?

Baricitinib + dexamethasone is indicated for COVID-19 (severe respiratory disease), Severe inflammatory respiratory conditions.

Who makes Baricitinib + dexamethasone?

Baricitinib + dexamethasone is developed by Instituto de Investigación Hospital Universitario La Paz (see full Instituto de Investigación Hospital Universitario La Paz pipeline at /company/instituto-de-investigaci-n-hospital-universitario-la-paz).

What drug class is Baricitinib + dexamethasone in?

Baricitinib + dexamethasone belongs to the JAK inhibitor + corticosteroid combination class. See all JAK inhibitor + corticosteroid combination drugs at /class/jak-inhibitor-corticosteroid-combination.

What development phase is Baricitinib + dexamethasone in?

Baricitinib + dexamethasone is in Phase 3.

What are the side effects of Baricitinib + dexamethasone?

Common side effects of Baricitinib + dexamethasone include Infection (bacterial, viral, fungal), Hyperglycemia, Hypertension, Thromboembolism, Insomnia, Mood changes.

What does Baricitinib + dexamethasone target?

Baricitinib + dexamethasone targets JAK1/JAK2 + glucocorticoid receptor and is a JAK inhibitor + corticosteroid combination.

Related

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