Overview
Daclatasvir is a breakthrough antiviral agent developed by Bristol-Myers Squibb, approved by the FDA in 2015. As an NS5A inhibitor, it targets a protein essential for hepatitis C viral RNA replication. The drug represents a significant advancement in HCV treatment, achieving cure rates exceeding 95% in combination therapies. Unlike older interferon-based regimens, daclatasvir offers improved tolerability and shorter treatment durations. It's particularly effective against HCV genotypes 1 and 3, which account for most global infections. Pharmaceutical manufacturers value its role in fixed-dose combination therapies that simplify treatment protocols.
Physical and Chemical Properties
Daclatasvir exhibits moderate lipophilicity (logP ~3.5) and pKa values of 4.4 (pyridinyl nitrogen) and 7.0 (imidazolyl nitrogen), influencing its pharmacokinetic profile. The crystalline powder shows stability under standard storage conditions but degrades upon prolonged exposure to heat or humidity. Spectroscopic characterization includes characteristic UV absorption at 260 nm and 305 nm. The molecule's complex structure features a biphenyl core with amino acid side chains, contributing to its high binding affinity for the NS5A protein (picomolar range). These properties necessitate careful handling during API formulation to maintain potency.
Main Applications
In clinical practice, daclatasvir is primarily administered with sofosbuvir (NS5B inhibitor) as an all-oral, interferon-free regimen for HCV. This combination shows particular efficacy in treating genotype 3 infections and patients with liver cirrhosis. The pharmaceutical industry also researches daclatasvir's potential against other Flaviviridae viruses. Some studies explore its use in post-liver transplant HCV prophylaxis. Manufacturers produce it as both standalone tablets (60mg) and in combination products, requiring strict quality control during granulation and tablet compression processes.
Safety and Storage
As a potent bioactive compound, daclatasvir requires containment measures per OSHA standards. Personal protective equipment (PPE) including nitrile gloves and safety goggles is mandatory during handling. The powder presents minimal inhalation risk but may cause irritation upon direct contact. Long-term storage demands temperature-controlled environments (-20°C) with desiccant packs to prevent hydrolysis. Secondary containment is recommended for liquid spills. Facilities must maintain batch-specific stability data according to ICH Q1A guidelines, with particular attention to photostability in packaging materials.
B2B Procurement Guide
Bulk pharmaceutical buyers should prioritize suppliers with EDQM Certification of Suitability (CEP) or FDA Drug Master Files. Key evaluation criteria include impurity profiles (<0.15% for any individual unknown), residual solvent levels (per ICH Q3C), and polymorphic form consistency. Procurement contracts should specify validated analytical methods (HPLC purity ≥98.5%), particle size distribution controls, and stability data supporting the intended shelf life. Logistics planning must account for cold chain requirements, with temperature monitoring during transit. Consider auditing suppliers' change control systems for ongoing quality assurance.
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