Comprehensive RUO Peptide Analytical Testing Needed: Potency, Stability and Impurity Analysis

In collaboration with the American Peptide Association, we’re seeking a qualified contract laboratory, CRO, or coordinated laboratory network to support the development and execution of a comprehensive analytical testing framework for Research Use Only (RUO) peptide materials.

The selected laboratory partner must be capable of performing the full testing scope internally or coordinating multiple specialized laboratories to deliver a single consolidated final report package. The objective is to establish a scientifically rigorous, pharmaceutical-style peptide quality framework suitable for external scientific, legal, and industry review while remaining strictly limited to RUO applications.

This project does not involve human use, clinical use, therapeutic claims, patient administration, compounding applications, or regulatory drug approval activities.

Scope of Requested Testing

1. Safety & Contaminant Evaluation

Testing may include:

• USP sterility testing
• Bacterial endotoxin testing (LAL or rFC)
• Bioburden and microbial limits testing
• Visible and subvisible particulate analysis
• Elemental impurities by ICP-MS (ICH Q3D)
• Catalyst residue analysis (Pd, Ni, Co, etc.)
• Residual solvent analysis by headspace GC (ICH Q3C)
• Mutagenic impurity screening (ICH M7)
• Nitrosamine risk assessment and confirmatory testing
• Counterion identification and quantification (TFA, acetate, etc.)

2. Peptide Identity, Purity & Functional Characterization

Testing may include:

• Functional potency assays including cAMP, EC50, Emax, receptor activation, or related bioassays
• Inter-assay reproducibility studies
• LC-HRMS/MS peptide mapping
• Amino acid analysis
• Oxidation, deamidation, and epimerization assessment
• RP-HPLC purity analysis
• Related substances and impurity profiling
• Net peptide content / label claim verification
• Appearance and reconstitution testing
• Aggregation and particle size analysis by DLS or equivalent techniques

3. Manufacturing Controls, Packaging & Stability

Testing may include:

• Water content by Karl Fischer
• Fill weight verification
• pH and osmolality after reconstitution
• Container closure integrity testing
• Extractables and leachables analysis
• Headspace gas analysis
• Accelerated and long-term stability studies (ICH Q1A)
• Freeze-thaw stability
• Photostability testing (ICH Q1B)

Key Project Requirements

• Ability to provide a single integrated report package, including multi-laboratory coordination if applicable
• Transparent methodology and supporting analytical documentation
• Access to raw or underlying analytical data where appropriate
• Clear disclosure of in-house versus subcontracted testing
• Identification of applicable quality standards (GMP, GLP, ISO 17025, USP, EP, ICH, etc.)
• Scientific consultation regarding essential versus redundant testing and pilot-phase prioritization
• Participation in a technical scoping call with analytical scientists before quote approval

Requested Vendor Response

Please include:

• Relevant peptide, API, biologic, sterile product, or pharmaceutical analytical testing experience
• Recommended RUO peptide testing panel
• Suggested additions, removals, or modifications to the proposed scope
• In-house versus subcontracted capabilities
• Estimated pricing and turnaround times
• Reporting format options
• Data ownership and publication limitations
• Policies regarding referencing laboratory names, methods, or report identifiers in controlled RUO publications
• Availability for a technical scoping discussion