Related Experiment Video
Updated: Mar 22, 2026

Immunostimulatory Agent Evaluation: Lymphoid Tissue Extraction and Injection Route-Dependent Dendritic Cell Activation
Published on: September 16, 2018
Injection site reactions after subcutaneous oligonucleotide therapy
Leonie van Meer1, Matthijs Moerland1, Jolie Gallagher1
1Centre for Human Drug Research, Leiden, the Netherlands.
Oligonucleotides (ONs) cause injection site reactions (ISRs) in 22-100% of patients. Higher doses increase ISR severity, impacting long-term use of these nucleic acid therapies.
Area of Science:
- Pharmacology
- Dermatology
- Molecular Biology
Background:
- Oligonucleotides (ONs) are nucleic acid-based therapeutics.
- Subcutaneous (sc) administration of ONs frequently causes local injection site reactions (ISRs).
- ISRs are poorly characterized in existing literature.
Purpose of the Study:
- To review the incidence and clinical features of ISRs associated with sc-administered ONs.
- To consolidate data on ISRs from literature and internal sources.
- To highlight the impact of ISRs on the clinical application of ON therapeutics.
Main Methods:
- Structured literature search for reported ISR incidence and features.
- Inclusion of institutional data on file.
- Analysis of 70 relevant manuscripts.
Main Results:
- All investigated sc-administered ONs caused ISRs.
- Incidence of ISRs ranged from 22% to 100%, with most ONs affecting over 70% of subjects.
- ISR incidence and severity correlated with higher doses, but not clearly with ON chemistry or target.
Conclusions:
- ISRs are a significant challenge for sc-administered ONs.
- Understanding ISRs is crucial for developing more clinically applicable ONs for broader patient populations.
- Further research into the immunostimulatory properties of ISRs is needed.
More Related Videos
Related Concept Videos
Hypersensitivity Reactions: Cytolytic Reactions
Drug Accumulation During Multiple Dosing: Repetitive IV Injections
Drug toxicity: Idiosyncratic Reactions
Allergic Drug Reactions
Drug Toxicity: Allergic Reactions
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions

