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Solid Form Screening and Selection
Optimizing Quality and Performance from Discovery to NDA

The selected solid form directly impacts solubility, stability, bioavailability, and manufacturability. Comprehensive screening is critical to ensuring product quality and clinical performance.

Solid Form Screening and Selection
Integrated Characterization

As a specialized CRO/CDMO in solid-state research, we provide integrated capabilities in physicochemical characterization to support polymorph, salt, and co-crystal selection.

XRPD TGA DSC PLM Particle Size Single-Crystal Analysis

Equipped to handle Highly Potent Compounds (OEB 4 & 5) and Controlled Substances.

Development Strategy
Phase-Appropriate Screening
Discovery Stage

Focused targeted manual screening for rapid assessment of key properties and initial form identification.

Preclinical to IND

Integrated virtual (COSMO-RS) and automated experimental workflows to evaluate phase behavior and stability.

Late-Stage Clinical

High-throughput screening for comprehensive form space evaluation to ensure robust control and IP protection.

01. Polymorph Screening

Mapping the polymorphic landscape to identify the most thermodynamically stable form with optimal stability, hygroscopicity, and melting behavior.

Screening Workflow
  • Crystallization condition design based on API properties
  • Comprehensive identification of all solid forms
  • Thermodynamic phase relationship & solubility analysis
  • Data-driven selection of the optimal candidate
Late-Stage IP Screening: Identifying relevant metastable forms to ensure robust patent protection and industrial applicability.
02. Salt Screening & Selection

Applied when improvements in solubility, stability, or bioavailability are required. Systematic evaluation enables identification for scalable development.

Screening Workflow
  • Tailored experimental design based on ionization properties
  • Systematic generation and characterization of salt forms
  • Thermodynamic and stability evaluation (solubility profiling)
  • Strategic selection based on manufacturability criteria
03. Co-Crystal Screening

For non-ionizable or weakly ionizable compounds, co-crystallization provides an alternative strategy to modify physicochemical properties.

Screening Workflow
  • Selection of suitable co-formers to guide design
  • Synthesis and structural characterization
  • Evaluation of phase behavior, stability, and solubility
  • Identification of optimal candidates for development

Achieve Your Success with Our Expertise

Have a question or need support with your project? Please complete the form, and our team will get back to you shortly.




Our capabilities span three specialized platforms:

  • Small Molecule

  • Crystal Bio Solutions

  • Crystal NAX


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Contact Us
bd_global@crystalpharmatech.com (925) 558-5040
U.S
NJ Sites: Suite 500-B, 3000 Eastpark Blvd, Cranbury, New Jersey, USA 08512

2005 Eastpark Blvd, Cranbury, New Jersey, USA 08512

CA Site: 7133 Koll Center Parkway, Suite 200, Pleasanton, California, USA 94566
Canada
6800 Kitimat Rd, Unit 1, Mississauga, Ontario, Canada L5N 5M1
China
No. 288, Jiangyun Road, Suzhou Industrial Park, Suzhou, China 215123

Floor 1, Bldg. 3, 68 Chunpu Road, Suzhou Industrial Park, Suzhou, China 215123
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NJ Sites: Suite 500-B, 3000 Eastpark Blvd, Cranbury, New Jersey, USA 08512

2005 Eastpark Blvd, Cranbury, New Jersey, USA 08512

CA Site: 7133 Koll Center Parkway, Suite 200, Pleasanton, California, USA 94566
bd_global@crystalpharmatech.com (925) 558-5040