Vaccine News

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May 3, 2024 • 4:05 pm CDT
Medline plus 2024

According to researchers at the University of Minnesota, a common diabetes drug has been found to reduce the amount of SARS-CoV-2 coronavirus and lower the risk of COVID-19 rebound symptoms when administered early during non-severe illness.

"The results of the study are important because COVID-19 continues to cause illness, both during acute infection and for months after infection," said Carolyn Bramante, MD, principal investigator and an assistant professor at the U of M Medical School, in a press release on May 2, 2024.

This study was published in the journal Clinical Infectious Diseases on May 1, 2024.

These researchers wrote that in this randomized, placebo-controlled phase 3 clinical trial of outpatient treatment of SARS-CoV-2, metformin significantly reduced the viral load.

The mean SARS-CoV-2 viral load was reduced 3.6-fold with metformin relative to placebo (−0.56 log10 copies/mL; 95% confidence interval [CI], −1.05 to −.06; P = .027).

Those who received metformin were less likely to have a detectable viral load than placebo at day five or day 10 (odds ratio [OR], 0.72; 95% CI, .55 to .94).

Viral rebound, defined as a higher viral load on day ten than on day 5, was less frequent with metformin (3.28%) than with placebo (5.95%; OR, 0.68; 95% CI, .36 to 1.29).

The metformin effect was consistent across subgroups and increased over time.

In a related commentary, the study authors wrote, "This study makes a strong case for a potential effect of metformin on COVID-19.... and  prompts a reevaluation of existing data in support of its use."

The Rainwater Charitable Foundation, The Parsemus Foundation, UnitedHealth Group, and Fast Grants funded the clinical trial. Drs. Bramante and Jacinda Nicklas' time was supported by the National Institutes of Health 

May 3, 2024 • 11:37 am CDT
US CDC polio travel health advisory April 2024

According to an updated Travel Health Advisory, there are now 34 destinations that may have circulating poliovirus.

As of May 3, 2024, the Global Polio Eradication Initiative confirmed various countries reported WPV1, cVDPV2, and cVDPV1 polio cases this year.

On April 26, 2024, the U.S. Centers for Disease Control and Prevention (CDC) reissued its Level 2 - Practice Enhanced Precautions notice regarding recent polio outbreaks.

The CDC says that adults who previously completed the full, routine polio vaccine series may receive a single, lifetime booster dose of polio vaccine before traveling to any destination listed. And to ensure that anyone who is unvaccinated or incompletely vaccinated completes the routine polio vaccine series before departing abroad.

In the U.S., polio vaccination services are generally available at health clinics and community pharmacies.

Previously, the World Health Organization (WHO) confirmed during the 38th meeting of the IHR Emergency Committee for Polio that the spread of the poliovirus remained a Public Health Emergency of International Concern and recommended its extension for a further three months to July 2024 to reduce the risk of the international spread of poliovirus.

Unfortunately, the U.S. is included in the WHO April 2024 notice.

May 2, 2024 • 6:06 pm CDT
US CDC Philippines 2024

Amidst the global measles outbreak of 2024, a new Health Alert has been issued for the Republic of the Philippines.

On May 2, 2024, the U.S. Embassy in Manila announced the U.S. Centers for Disease Control and Prevention (CDC) issued a Level 1 Travel Health Notice for Measles in the Philippines.

The CDC recommends that all travelers to the Philippines, including infants and pre-school-aged children, be fully vaccinated against measles.

If you are unsure whether you or your travel companions are fully protected against measles, schedule an appointment to visit a healthcare provider at least one month before traveling abroad so that you have enough time to be fully immunized, says the CDC.

If you don't think you can safely receive a measles-containing vaccine, talk to your doctor and consider making alternative travel plans.

In the U.S., measles vaccines are generally available at retail pharmacies.

Visit the CDC Travelers Health webpage for travelers to the Philippines to learn more.

As of late April 2024, the CDC listed 51 countries confronting measles cases this year.

This list includes Afghanistan, Angola, Armenia, Azerbaijan, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Côte d'd'IvoireIvory Coast), Democratic Republic of the Congo, Djibouti, Equatorial Guinea, Ethiopia, Gabon, Ghana, India, Indonesia, Kazakhstan, Kyrgyzstan, Lebanon, Liberia, Libya, Malaysia, Mauritania, Nepal, Niger, Nigeria, Pakistan, Philippines, Qatar, Republic of South Sudan, Republic of the Congo, Romania, Russia, Senegal, Somalia, Sri Lanka, Sudan, Syria, Tajikistan, Timor-Leste (East Timor), Togo, Turkey, United Arab Emirates, Uzbekistan, Yemen, Zambia.

May 2, 2024 • 3:57 pm CDT
by Gerd Altmann

Moderna, Inc. today reported financial results and provided business updates for the first quarter of 2024.

On May 2, 2024, the Company reported $167 million in Spikevax® (COVID-19 vaccine) sales in the first quarter of 2024, compared to $1.9 billion in the same period in 2023, a decrease of 91%.

This sales decline aligns with the anticipated transition to a seasonal COVID-19 vaccine market.

"As we anticipate the launches of our Spikevax 2024-2025 formula and RSV vaccine, we are exercising financial discipline and have intensified our focus on building and utilizing AI technologies to further streamline operations and enhance productivity," said Stéphane Bancel, Chief Executive Officer of Moderna, in a press release.

"With ten late-stage programs and additional new programs advancing toward pivotal studies, we continue to expect numerous product milestones this year across our vaccines and therapeutics portfolio."

"This is the start of a banner year for our vaccine platform as we continue to advance mRNA medicines for patients. This is just the beginning."

A recent announcement of positive interim results from the NEXTCove Phase 3 trial showed that Moderna's next-generation COVID-19 vaccine (mRNA-1283) elicited a higher immune response against both the Omicron BA.4/BA.5 and original virus strains of SARS-CoV-2 compared to Moderna's licensed COVID-19 vaccine (mRNA-1273.222).

The next-generation vaccine is designed to be refrigerator-stable and paves the way for a combination vaccine against influenza and COVID-19 (mRNA-1083). The Company is engaging with regulators on the next steps.

And Moderna's Phase 3 trial of its combination vaccine against seasonal flu and COVID-19 (mRNA-1083) is fully enrolled. The Company anticipates data from the study in 2024.

May 1, 2024 • 4:41 pm CDT
Pixabay

The results from a literature search published on April 26, 2024, identified 16 study records that fit the inclusion criteria for reviewing the effectiveness of the JYNNEOS® (MVA-BN) vaccine against mpox.

Where the study population was exclusively or primarily those receiving pre-exposure prophylactic vaccination, JYNNEOS's adjusted vaccine effectiveness (VE) estimates ranged from 35% to 86% (n=8 studies) for one dose.

JYNNEOS's VE for two doses ranged from 66% to 90% (n=5) for two doses.

Where only post-exposure prophylactic vaccination was assessed, adjusted VE estimates were reported for one dose only at 78% and 89% (n=2). 

These researchers concluded that 'despite heterogeneity in study design, setting, and at-risk populations, the reported VE estimates against symptomatic mpox infection for one or two doses supports deployment of JYNNEOS for mpox outbreak control.

The U.S. Food and Drug Administration initially approved JYNNEOS for smallpox in September 2019 and extended its authorization for mpox in 2022. As of late 2023, about 1.2 million doses had been administered in 57 U.S. Jurisdictions.

As of May 2024, healthcare providers in the U.S. can order JYNNEOS through their preferred wholesaler and distribution partners to make it available for at-risk individuals at pharmacies.

According to a recent analysis, JYNNEOS booster (third) doses have not been recommended.

The World Health Organization recently published Mpox External Situation Report #32, which confirmed that from January 2022 through March 2024, a cumulative total of 95,226 mpox cases, including 185 deaths, were reported.

Note: Bavarian Nordic Inc., the owner of JYNNEOS, funded the research presented in this manuscript.

May 1, 2024 • 4:05 pm CDT
@DrPatSoonShiong

According to a post on X by @DrPatSoonShiong, the initial 1,000 doses of ANKTIVA® (N-803) shipped on May 1, 2024.

On April 22, 2024, ImmunityBio Inc. announced that the U.S. Food and Drug Administration (FDA) had approved ANKTIVA plus BCG vaccine therapy for treating certain patients with BCG-unresponsive bladder cancer.

The company says Anktiva is the backbone of ImmunityBio's Quantum Oncotherapeutics immunotherapy-based vaccine approach for treating multiple tumor types.

"We hypothesized that activation and proliferation of natural killer cells through IL-15 stimulation could rescue T cells after checkpoint failure, regardless of tumor type or location. As with non-muscle invasive bladder cancer, we believe that ANKTIVA enhanced the NK and T cell activity critical for targeting and killing cancer cells which have entered the phase of tumor evasion and resistance," said Patrick Soon-Shiong, M.D., Executive Chairman and Global Chief Scientific and Medical Officer at ImmunityBio, in a press release on April 25, 2024.

In 2024, Anktiva is expected to cost $35,800 per dose. ImmunityBio's Patient Assistance Program is expected to ensure access to ImmunityBio's innovative cancer treatment for those in financial support.

May 1, 2024 • 1:14 pm CDT
by Alessandro D'Andrea

Pfizer Inc. today reported $354 million in Comirnaty® vaccine revenue in Q1 2024, marking an 88% drop from the previous year's Q1.

On May 1, 2024, Pfizer explained this decrease was driven largely by lower contractual deliveries and demand in international markets and lower U.S. volumes, reflecting the anticipated seasonality of demand for vaccinations and as certain markets, including the U.S., transition to traditional commercial market sales.

Dr. Albert Bourla, Chairman and Chief Executive Officer, stated in a press release, "We delivered strong performance in our non-COVID product portfolio in the first quarter of 2024, including increased revenue from several of our recent commercial launches and acquired products, as well as robust year-over-year growth for several key in-line brands."

"Our Paxlovid® revenues in the quarter indicate a successful transition into the commercial marketplace in the U.S. and a demonstrated trust in the brand."

"Overall, I am encouraged by a well-executed quarter, setting the tone for the year. Pfizer's commercial leadership is focused on data-driven opportunities across several key growth brands, both in the U.S. and internationally, and we intend to build on this positive momentum in the quarters ahead."

Results from a recent survey published by the journal Nature indicate this negative trend may continue in 2024.

On April 29, 2024, this survey in 23 countries was taken in October 2023. t found a lower intent to get a COVID-19 booster vaccine (71.6%) compared with 2022 (87.9%).

Trust in vaccine information sourced each averaged less than 7 on a 10-point scale with one’s own doctor or nurse and the World Health Organization, averaging 6.9 and 6.5, respectively.

'Our findings emphasize that vaccine hesitancy and trust challenges remain for public health practitioners, underscoring the need for targeted, culturally sensitive health communication strategies,' wrote these researchers.

Apr 30, 2024 • 11:59 am CDT
Recce Pharmaceuticals 2024

Recce Pharmaceuticals Ltd. today announced an Independent Safety Committee approved an increase in dosing to 4,000mg over a fast infusion of 30 minutes in a Phase I/II clinical trial evaluating its lead candidate, RECCE® 327 (R327).

The Company says it identified 30 minutes as the optimum infusion time and increased to a higher concentration per regulatory expectations to investigate R327’s high concentration potential.

“We’re thrilled the independent safety committee has unanimously clearly an increased R327 dose to 4,000mg, over a 30-minute fast IV infusion,” said James Graham, Chief Executive Officer of Recce Pharmaceuticals, in a press release on April 30, 2024.

“The ability to administer high concentrations of a broad-spectrum anti-infective underscores the potential of a novel treatment for millions of patients worldwide with urinary tract infections (UTI) or urosepsis each year.”

Dosing has successfully achieved Minimum Inhibitory Concentration activity among existing clinical samples. The Company has now dosed 3,000mg at multiple infusion times: 15, 20, 30, 45 minutes, and 1 hour.

In accordance with the study protocol, the efficacy of R327 via IV administration will be made available at the completion of the ACTRN12623000448640 trial.

Recce’s New Class of Synthetic Anti-Infectives have a universal mechanism of action with the ability to overcome hyper-cellular mutation of bacteria and viruses. RECCE® 327 is not a preventive vaccine and is not approved for use in humans in any country.

The investigational recurrent UTI vaccine MV140 is available in Australia and various countries in 2024.

Apr 30, 2024 • 8:59 am CDT
By Samuel Lee

Although there is no approved vaccine to prevent norovirus, it is estimated that approximately 21 million people in the United States are infected with this virus every year, including about 15% of children under the age of 5.

While pediatric deaths resulting from norovirus are rare in the U.S., they are more common in developing countries.

Nevertheless, the economic burden of norovirus in the United States alone is estimated to be $10.6 billion annually.

A recently completed Phase I trial, partially funded by the Bill & Melinda Gates Foundation, included immunogenicity measures.

On April 30, 2024, Vaxart, Inc. announced that it had completed the topline analysis evaluating the Company's orally administered bivalent GI.1/GII.4 norovirus vaccine candidate.

The VXA-NVV-108 clinical trial focused on vaccinating lactating mothers.

Antibodies to norovirus rose on average four-fold for the G1.1 virus strain and six-fold for the GII.4 virus strain in the breast milk of lactating mothers who received the Vaxart vaccine candidate in the high dose group.

Furthermore, there were no vaccine-related serious adverse events, no dose-limiting pharmacotoxicity, and no new onset of chronic illness was observed through the active period.

"This is an important step forward as we drive toward a vaccine candidate that may make it possible for mothers to protect their children against this highly contagious – and potentially lethal – virus."

"It can be difficult to immunize the youngest children mucosally because the immune system is still developing."

"Passive transfer of antibodies from mothers to infants via breast milk is an innovative approach to potentially improve infection resistance in infants," said Dr. James F. Cummings, Vaxart's Chief Medical Officer, in a press release.

As of late April 2024, the World Health Organization has not pre-qualified any norovirus vaccine candidate.

Apr 30, 2024 • 5:29 am CDT
Repertoire® Immune Medicines

Repertoire® Immune Medicines announced today that it has entered a multi-year strategic collaboration with Bristol Myers Squibb to develop tolerizing vaccines for up to three autoimmune diseases.

Repertoire is developing tolerizing vaccines as a new class of programmable medicines for patients with autoimmune diseases.

These vaccines have the potential to re-establish immune homeostasis, leading to durable disease remission in the absence of generalized immune suppression, thereby overcoming the limitations of today's medicines and transforming the lives of patients who have been diagnosed with an autoimmune disease.

The collaboration aims to develop efficacious, selective, and durable treatments for patients suffering from autoimmune disease by resetting the immune system.

Repertoire will lead all activities through to development candidate nomination, while BMS will lead clinical development, regulatory affairs, and commercialization of the tolerizing vaccines under an exclusive worldwide license.

Repertoire will utilize its T cell receptor (TCR)-epitope discovery platform, DECODE, and its proprietary lipid nanoparticle delivery technology to discover and develop the tolerizing vaccine development candidates.

In addition, it will deploy DECODE to monitor immune responses to the tolerizing vaccines in patients during clinical development to provide key insights into the pharmacodynamic effect of the vaccines.

"This agreement is a recognition of the transformative power of Repertoire's DECODE platform to discover and develop programmable T cell targeted immune medicines," said Torben Straight Nissen, Ph.D., CEO of Repertoire and Executive Partner of Flagship Pioneering, in a press release on April 29, 2024.

"We are excited to collaborate with Bristol Myers Squibb to combine their leadership in immunology with our unique ability to discover key disease-associated epitopes in patients with autoimmune diseases. This collaboration enables us to serve patients suffering from autoimmune diseases by translating our DECODE discoveries into potentially transformative medicines that address the underlying cause of their disease." 

Under the terms of the agreement, Repertoire will receive an upfront payment of $65 million and up to $1.8 billion for achieving development, regulatory, and commercial milestones in addition to receiving tiered royalties.

Apr 29, 2024 • 12:23 pm CDT
by NeShea Jenifer

Merck today announced results from STRIDE-10, a Phase 3 trial evaluating V116, the company’s investigational, adult-specific 21-valent pneumococcal conjugate vaccine.

Key results from the study include:

V116 elicited immune responses that were noninferior compared to PPSV23 for the 12 serotypes (or strains) common to both vaccines, as measured by serotype-specific opsonophagocytic activity (OPA) geometric mean titers (GMTs) at Day 30.

Immune responses elicited by V116 were superior for the nine serotypes included in V116 but not PPSV23, as measured by OPA GMT ratios at Day 30, and superior for eight of nine serotypes unique to V116 compared to PPSV23, as measured by the proportions of participants with ≥4-fold rise in immune responses.

V116 had a safety profile comparable to PPSV23.

“Invasive pneumococcal disease and pneumococcal pneumonia represent significant public health challenges, particularly among older adult populations and those with risk conditions,” said Dr. Walter Orenstein, professor emeritus of medicine, epidemiology, global health and pediatrics at Emory University and member of Merck’s Scientific Advisory Committee, in a press release on April 29, 2024.

“These positive results show that V116 has the potential to help prevent invasive pneumococcal disease among adult populations.”

In addition to the clinical data on V116, Merck also presented findings that suggest V116 may help to reduce the health and economic burden associated with invasive pneumococcal disease and non-bacteremic pneumococcal pneumonia among adults in France, Sweden, Spain, and the Netherlands.

Apr 29, 2024 • 10:47 am CDT
by Cheryl Holt

With the creation of efficacious cancer prevention vaccines to target human papillomavirus (HPV) in the first decade of this century, the World Health Organization (WHO) set an ambitious target to lower cervical cancer incidence and mortality by 30% by 2030.

While the WHO targets are aspirational, no country has yet verified that it has reached them.

A presentation by Professor Suzanne Garland at this year's ESCMID Global Congress revealed that even though the evidence is clear and continues to build that HPV vaccination is reducing cervical cancer incidence and mortality and HPV-related disease, there are high variations in coverage globally.

Prof Garland reviewed the WHO Dashboard data, which shows that of 194 reporting countries, 137 (71%) have HPV in their national vaccination programs.

The WHO database shows that the average full vaccine coverage is 44% globally.

Specifically, it shows that Canada, Ireland, Sweden, Spain, and Portugal have full vaccination coverage above 70%, while the USA and Germany trail behind at 50-70%.

Of the HPV national programs reporting to the end of 2023, 42% are for both sexes, while 58% are for girls only.

Globally, 21% of girls have received at least one dose of HPV vaccine by age 15, which has steadily increased from 4% in 2010.

Prof Garland concluded in a press release on April 27, 2024, "Vaccination is a critical component of the global strategy to eliminate cervical cancer as a public health problem."

"There is strong and growing evidence on effectiveness against cervical cancer, with rates falling steadily as vaccination takes effect."

"Scaling up vaccine access and coverage globally is critical to reduce inequities between and within countries."

In the United States, several states are reaching a broad number of boys and girls, while others are lagging.

For example, Texas's HPV vaccination rate for children ages 13–17 is below the national average, ranking 48th out of 50 states and the District of Columbia in 2021. 

In 2021, 51.5% of Texas teens completed the HPV vaccine series.

As of April 29, 2024, HPV vaccines are available at clinics and pharmacies in the U.S.

Apr 29, 2024 • 8:25 am CDT
by Mircea Iancu

Research findings presented at the European Society of Clinical Microbiology and Infectious Diseases Global Congress show that a lower dose of the JYNNEOS® (MVA-BN) mpox vaccine is safe and generates a six-week antibody response equivalent to the standard regimen.

The results announced by the U.S. NIH on April 27, 2024, suggest that antibody responses contributed to the effectiveness of dose-sparing mpox vaccine regimens used during the 2022 U.S. outbreak.

The authors noted that because no defined correlates of protection against mpox—immune processes confirmed to prevent disease—these findings cannot predict the efficacy of dose-sparing regimens with certainty.

Real-world data from the U.S. Centers for Disease Control and Prevention and others have shown similar vaccine effectiveness for the dose-sparing regimen given intradermally and the standard regimen given subcutaneously.

According to the NIH, a study of the standard JYNNEOS regimen in adolescents is ongoing and will report findings later this year.

An earlier press release stated that the antibodies produced by JYNNEOS against mpox wane significantly within a year of receiving the vaccination. In contrast, among individuals who had received childhood smallpox vaccination, most had detectable VACV IgG one year after vaccinations.

In April 20224, JYNNEOS became commercially available in the U.S. by establishing additional pathways for vaccine procurement, distribution, and reimbursement by public and private payers, including community pharmacies.

Mpox vaccinations are essential since the number of mpox cases in the U.S. has more than doubled compared to Week #15 in 2023. As of April 13, 2024, 750 mpox cases had been reported, compared to 336 cases at the same time last year.

Apr 28, 2024 • 12:42 pm CDT
GPEI polio case map April 24, 2024

The Global Polio Eradication Initiative (GPEI) today announced the Kingdom of Saudi Arabia has pledged $500 million over the next five years to support the elimination of polio.

The GPEI stated on April 28, 2024, that these funds will yearly protect more than 370 million children with polio vaccines.

It will also facilitate the delivery of other life-saving interventions, such as nutritional supplements and bed nets, to underserved communities and strengthen health systems to better prepare countries for emerging health threats.

“For decades, polio inflicted lifelong suffering on children and families. Today, we take another step toward finally eradicating it, thanks to the generous contributions of the Kingdom of Saudi Arabia. When we invest in eradicating polio, we make immunization and health systems more resilient, we equip nations to better respond to public health challenges, and most importantly, we ensure that more children can live healthy lives,” said Bill Gates in a press release.

The announcement builds on a long history of support from Saudi Arabia and regional partners to the global polio eradication effort as well as across the Eastern Mediterranean – the last region where wild polio is endemic.

For more than two decades, Saudi Arabia has not only financially supported the GPEI but has also advocated for polio eradication and access to other life-saving vaccines in the Eastern Mediterranean and beyond.

Unfortunately, the GPEI also reported several polio detections this past week.

  • Afghanistan: 10 WPV1-positive environmental samples
  • Pakistan: two WPV1-positive environmental samples
  • Angola: one cVDPV2-positive environmental sample
  • Nigeria: two cVDPV2 cases
  • Somalia: one cVDPV2 case
  • South Sudan: three cVDPV2 cases
  • Yemen: one cVDPV2 case and eight positive environmental samples
  • Zimbabwe: one cVDPV2-positive environmental sample

To better address the evolving risk of type 2 variant poliovirus (cVDPV2), the next-generation novel oral polio vaccine type 2 (nOPV2) is being deployed in countries affected by these outbreaks.

Apr 28, 2024 • 9:02 am CDT
US CDC Ebola outbreak map 2024

A new U.S. Centers for Disease Control and Prevention (CDC) report describes the use of Ebola vaccines and the role of the stockpile developed and managed by the International Coordinating Group (ICG) on Vaccine Provision.

A total of 145,690 doses have been shipped from the ICG stockpile since 2021.

Because Ebola outbreaks since 2021 have been limited, most doses (139,120; 95%) shipped from the ICG stockpile have been repurposed for preventive vaccination of high-risk groups, compared with 6,570 (5%) used for outbreak response.

The CDC wrote on April 25, 2024, repurposing doses for preventive vaccination could be prioritized in the absence of Ebola outbreaks to prevent transmission and maximize the cost-efficiency and benefits of the stockpile.

Currently, two licensed vaccines are recommended for the prevention of Ebola caused by Orthoebolavirus zairense: 

  • The 1-dose rVSVΔG-ZEBOV-GP (ERVEBO®) was licensed by the European Medicines Agency and the Food and Drug Administration in 2019 and is indicated for use in persons aged >12 months. The vaccine has also been approved in Burundi, Central African Republic, Côte d’Ivoire, Democratic Republic of the Congo (DRC), Ghana, Guinea, Republic of the Congo, Rwanda, Sierra Leone, Uganda, and Zambia. The U.S. FDA has approved ERVEBO.
  • The 2-dose Ad26.ZEBOV and MVA-BN-Filo (Zabdeno/Mvabea) regimen is recommended for preventive vaccination in areas at lower risk for Ebola (or areas neighboring an outbreak) because the complete regimen is administered over 56 days.

To effectively manage the global Ebola stockpile, the International Coordinating Group on Vaccine Provision ensures equitable and timely access to vaccine doses for Ebola outbreaks, says the CDC.

Ebolaviruses were first discovered in 1976 near the Ebola River in what is now the Democratic Republic of Congo. According to the CDC, viral and epidemiologic data suggest that ebolaviruses existed long before the initial recorded outbreaks occurred.