Preclinical Drug Discovery Services

At Mirimus, we bridge the gap between research innovation and clinical success. Our preclinical drug discovery services deliver the testing, validation, and insights needed to advance your therapeutic candidates faster and with confidence. From small molecules to gene and RNAi-based therapies, our expert team provides precise, reproducible studies that evaluate efficacy, safety, and mechanism of action.

Small Molecules

In Vitro Screening for Efficacy & Potency

Mechanistic & Target Engagement Studies

In Vivo Efficacy & Safety Assessment

PK/PD Profiling

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Biologics

Functional Activity Assays for Efficacy

In Vitro & In Vivo Binding and Affinity Testing

PK/PD Profiling

Safety Assessment & Toxicity Studies

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RNAi Services

Custom Design, Synthesis, and Validation of siRNA, shRNA, and artificial miRNA Triggers

Target Gene Assessment

Development of LNPs & Viral Delivery Systems

In Vitro & In Vivo Testing for Efficacy & Safety

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CRISPR

Design & Validation of CRISPR Guide RNAs

Targeted Gene Knock-out/Knock-in

CRISPR Screening for Functional Studies & Target Discovery

Functional Assays to Confirm Editing Efficacy

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Formulations

Development of Stable & Bioavailable Formulations

LNP & Viral Vector Formulations for RNAi Delivery

Formulations for Various Routes of Administration (Oral, Injectable, Topical)

Bioavailability & PK Profiling for Improved Delivery

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Toxicity Testing

In Vitro Cytotoxicity & Genotoxicity Testing

In Vivo Acute & Chronic Toxicity Studies

Dose-Response Analysis & Toxicokinetic Profiling

Safety Pharmacology & Biomarker Identification

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Pharmacokinetics / Pharmacodynamics

ADME Studies for Pharmacokinetic Profiling

In Vivo PK/PD Modeling for Dose Selection

Exposure-Response Relationships

Mechanistic Studies to Support Therapeutic Efficacy

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Select Publications

Engineered microRNA scaffolds for potent gene silencing in vivo (Militello et al., 2025, Scientific Reports)

HDM-2-Targeting Peptide PNC-27 Kills Cervical Cancer Cells but not Normal Cervical Cells (Krzesaj et al., 2025, Ann Clin Lab Sci)

Translation initiation factor eIF4F modifies the dexamethasone response in multiple myeloma (Robert et al., 2014, Proc Natl Acad Sci USA)

Small Molecules

In Vitro Screening for Efficacy & Potency

Mechanistic & Target Engagement Studies

In Vivo Efficacy & Safety Assessment

PK/PD Profiling

Biologics

Functional Activity Assays for Efficacy

In Vitro & In Vivo Binding and Affinity Testing

PK/PD Profiling

Safety Assessment & Toxicity Studies

RNAi Services

Custom Design, Synthesis, and Validation of siRNA, shRNA, and artificial miRNA Triggers

Target Gene Assessment

Development of LNPs & Viral Delivery Systems

In Vitro & In Vivo Testing for Efficacy & Safety

CRISPR

Design & Validation of CRISPR Guide RNAs

Targeted Gene Knock-out/Knock-in

CRISPR Screening for Functional Studies & Target Discovery

Functional Assays to Confirm Editing Efficacy

Formulations

Development of Stable & Bioavailable Formulations

LNP & Viral Vector Formulations for RNAi Delivery

Formulations for Various Routes of Administration (Oral, Injectable, Topical)

Bioavailability & PK Profiling for Improved Delivery

Toxicity Testing

In Vitro Cytotoxicity & Genotoxicity Testing

In Vivo Acute & Chronic Toxicity Studies

Dose-Response Analysis & Toxicokinetic Profiling

Safety Pharmacology & Biomarker Identification

Pharmacokinetics / Pharmacodynamics

ADME Studies for Pharmacokinetic Profiling

In Vivo PK/PD Modeling for Dose Selection

Exposure-Response Relationships

Mechanistic Studies to Support Therapeutic Efficacy

Collaborate with Mirimus for Superior Preclinical Services

With a focus on both in-house development and client-provided compound testing, Mirimus offers a complete range of preclinical drug discovery services. Our expertise ensures that your small molecules, biologics, RNAi therapeutics, and CRISPR candidates are fully characterized, optimized, and ready for clinical advancement. Contact us today to learn how we can accelerate your drug discovery journey.

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