- Vaccination coverage with the second dose of inactivated polio vaccine (IPV2) was 11.2% higher among those vaccinated intradermally with Tropis compared to the standard of care (full dose needle and syringe intramuscular delivery).
- Up to 47% total immunization cost savings can be realized using Tropis needle-free for fractional inactivated poliovirus vaccine (fIPV) administration compared to the standard of care.
- A significant majority of routine immunization healthcare workers were in favor of implementing needle-free as the standard method for IPV administration with 95% preference.
- Increased coverage: Among those vaccinated with Tropis, IPV2 coverage was 11.2% higher compared to the standard of care. On a relative basis, the odds of receiving 2 doses of IPV are doubled when Tropis is used.
- Decreased cost: Incremental cost savings with Tropis ranged from $0.07 to $1.00 per dose administered across the evaluated scenarios, with up to 47% total immunization costs savings for IPV delivered with Tropis compared to IPV delivered by needle and syringe in a full-scale scenario. Switching to Tropis-delivered fIPV could save the Nigeria immunization program ~US$50 million over a 5-year period.
- Feasibility/scalability: Acceptability was high among caregivers whose children were vaccinated with Tropis. More than 96% said they would be more likely to return for future vaccinations if Tropis was used. Additionally, 95% of healthcare workers preferred needle-free over the standard of care. They noted that Tropis is easy to operate, a safer alternative to needles, and associated with less discomfort by recipients during vaccine administration. Tropis reduced administration time compared to standard of care.
Refer to Instructions for Use to ensure safe injections and to review risks.
1 Data on file 2 Biya, O et al, Notes from the Field: House-to-House Campaign Administration of Inactivated Poliovirus Vaccine — Sokoto State, Nigeria, November 2022, CDC Morbidity and Mortality Weekly report, November 24, 2023 / 72(47);1290–1291 3 World Health Organization, Highlights from the meeting of the Strategic Advisory Group of Experts (SAGE) on Immunization; 23-26 September 2024 4 World Health Organization, Africa Regional Polio Eradication Plan, 2024 – 2025 plan, Objective 3b – Immunization System Strengthening, p. 34This press release and the related study are made possible by the support of the American people through the United States Agency for International Development (USAID). The contents are the responsibility of PharmaJet and the Project Partners and do not necessarily reflect the views of USAID or the United States Government.
About PharmaJet The PharmaJet mission is to improve the performance and outcomes of injectables with our enabling technology that better activates the immune system. We are committed to helping our partners realize their research and commercialization goals while making an impact on public health. PharmaJet Precision Delivery Systems™ can improve vaccine effectiveness, and promote a preferred patient and caregiver experience while being safe, fast, and easy-to-use. The Stratis® System has U.S. FDA 510(k) marketing clearance, CE Mark, and WHO PQS certification to deliver medications and vaccines either intramuscularly or subcutaneously. The Tropis® System has CE Mark and WHO PQS certification for intradermal injections. They are both commercially available for global immunization programs. For more information or if you are interested in partnering with PharmaJet to improve the impact of your novel development program, visit https://pharmajet.com or Contact | PharmaJet. Follow us on LinkedIn. About Tropis ID The PharmaJet Tropis® ID Precision Delivery System&8482; was developed with support from the World Health Organization, US CDC, and the Bill & Melinda Gates Foundation and has CE Mark and is WHO Prequalified for intradermal injections. It has been used for millions of injections in multiple immunization campaigns worldwide. Data have repeatedly shown improved immunogenicity for nucleic acid vaccines and therapeutics administered with Tropis compared to needle and syringe and electroporation delivery. In addition, Tropis is the exclusive intradermal delivery system for two authorized novel Covid-19 vaccines: ZyCoV-D by Zydus Lifesciences, and GEMCOVAC-OM by Gennova Biopharmaceuticals.