Last reviewed 2026-04-19 · How we verify

Perfluorobutane

Institute of Liver and Biliary Sciences, India · Phase 1 active Small molecule

Perfluorobutane is a Small molecule drug developed by Institute of Liver and Biliary Sciences, India. It is currently in Phase 1 development. Also known as: Sonazoid.

Likelihood of approval

9.6% vs 9.6% industry baseline

If approved by FDA: likely 2033–2036

Steps remaining: Phase 2 → Phase 3 → NDA/BLA submission

Confidence: Medium

Why this estimate

Baseline phase 1 → approval rate +9.6pp
Industry-wide phase 1 drugs reach approval ~9.6% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).

Predicted approval windows by jurisdiction (conditional on FDA approval)

Regulator	Country	Likely year	Lag vs FDA
FDA	US	2033–2036	—
EMA	EU	2034–2037	+0.7 yr
MHRA	GB	2034–2037	+0.7 yr
Health Canada	CA	2034–2038	+0.9 yr
TGA	AU	2034–2038	+1.2 yr
PMDA	JP	2034–2038	+1.5 yr
NMPA	CN	2035–2039	+2.3 yr
MFDS	KR	2034–2038	+1.4 yr
CDSCO	IN	2034–2039	+1.8 yr
ANVISA	BR	2035–2039	+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 name	Perfluorobutane
Also known as	Sonazoid
Sponsor	Institute of Liver and Biliary Sciences, India
Modality	Small molecule
Therapeutic area	Other
Phase	Phase 1

Approved indications

No approved indications tracked.

Common side effects

No common side effects on file.

Key clinical trials

Sonoporation and Chemotherapy for the Treatment of Pancreatic Cancer (PHASE1, PHASE2)
Y-90 Treatment Response Using Transarterial Radioembolization (PHASE2)
Gynecological Sentinel Lymph Nodes CEUS (EARLY_PHASE1)
Contrast-Enhanced Ultrasound Identification of Sentinel Nodes in Esophageal Cancer (EARLY_PHASE1)
SHAPE of Portal Hypertension in Children (PHASE2)
Contrast Enhanced Ultrasonography to Detect Human Renal Transplant Rejection (PHASE2)
Contrast Ultrasound Detection of Sentinel Lymph Nodes (PHASE1, PHASE2)
Role of Perfluorobutane in Lesion Detection, Targeting and Response Assessment for Ablation of HCC (NA)

Primary sources

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

Source	Used for
ClinicalTrials.gov	Trial 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:

Perfluorobutane CI brief — competitive landscape report
Perfluorobutane updates RSS · CI watch RSS
Institute of Liver and Biliary Sciences, India portfolio CI

Frequently asked questions about Perfluorobutane

What is Perfluorobutane?

Perfluorobutane is a Small molecule drug developed by Institute of Liver and Biliary Sciences, India.

Who makes Perfluorobutane?

Perfluorobutane is developed by Institute of Liver and Biliary Sciences, India (see full Institute of Liver and Biliary Sciences, India pipeline at /company/institute-of-liver-and-biliary-sciences-india).

Is Perfluorobutane also known as anything else?

Perfluorobutane is also known as Sonazoid.

What development phase is Perfluorobutane in?

Perfluorobutane is in Phase 1.

Manufacturer: Institute of Liver and Biliary Sciences, India — full pipeline
Therapeutic area: All drugs in Other
Also known as: Sonazoid

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