Evidence map›Paper›PMID 36687766›Full record

ArticleBiotechnology reports (Amsterdam, Netherlands)2023

Development and scale-up of rVSV-SARS-CoV-2 vaccine process using single use bioreactor.

Christopher Ton, Victoria Stabile, Elizabeth Carey, Adam Maraikar, Travis Whitmer, Samantha Marrone, Nelson Lee Afanador, Igor Zabrodin, Greeshma Manomohan, Melissa Whiteman and 1 more

Open access · goldAbstract read
In one paragraph

Article in Biotechnology reports (Amsterdam, Netherlands), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.7field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Enhanced production yields of rVSV-SARS-CoV-2 vaccine using Fibra-CelFrontiers in bioengineering and biotechnology · 2024
    Article
  8. Article
  9. Review
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Christopher TonVaccine Process Development, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Victoria StabileVaccine Process Development, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Elizabeth CareyVaccine Process Development, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Adam MaraikarBioprocess Clinical Manufacturing & Technology, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Travis WhitmerBioprocess Drug Substance Commercialization, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Samantha MarroneVaccine Process Development, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Nelson Lee AfanadorBiostatistics and Research Decision Sciences, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Igor ZabrodinVaccine Process Development, Merck & Co., Inc., West Point, Pennsylvania, 19486, United States.
Greeshma ManomohanCurrently at GlaxoSmithKline plc, King of Prussia, Pennsylvania, 19406, United States.
Melissa WhitemanAnalytical Research & Development, Merck & Co., Inc., West Point, Pennsylvania 19486, United States.
Carl HofmannAnalytical Research & Development, Merck & Co., Inc., West Point, Pennsylvania 19486, United States.
United States Military Academy · USGlaxoSmithKline (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The outbreak of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes the Coronavirus Disease 2019 (COVID-19) has spread through the globe at an alarming speed. The disease has become a global pandemic affecting millions of people and created public health crises worldwide. Among many efforts to urgently develop a vaccine against this disease, we developed an industrial-scale closed, single use manufacturing process for V590, a vaccine candidate for SARS-CoV-2. V590 is a recombinant vesicular stomatitis virus (rVSV) genetically engineered to express SARS-CoV-2 glycoprotein. In this work, we describe the development and optimization of serum-free microcarrier production of V590 in Vero cells in a closed system. To achieve the maximum virus productivity, we optimized pH and temperature during virus production in 3 liters (L) bioreactors. Virus productivity was improved (by ∼1 log) by using pH 7.0 and temperature at 34.0 °C. The optimal production condition was successfully scaled up to a 2000 L Single Use Bioreactor (SUB), producing a maximum virus titer of ∼1.0e+7 plaque forming units (PFU)/mL. Further process intensification and simplification, including growing Vero cells at 2 gs per liter (g/L) of Cytodex-1 Gamma microcarriers and eliminating the media exchange (MX) step prior to infection helped to increase virus productivity by ∼2-fold.

Indexed as

Closed processMicrocarriersSerum-freeSingle use bioreactorVero cellsVSV∆G-SARS-CoV-2

Identifiers

PMID36687766
PMCPMC9841742
OpenAlexW4317780640

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.