Massachusetts Eye and Ear and Massachusetts General Hospital (MGH),
members of Mass General Brigham, today announced progress towards the
testing and development of an experimental vaccine called AAVCOVID, a
novel gene-based vaccine candidate against SARS-CoV2, the virus that
causes COVID-19.
The AAVCOVID vaccine program was developed in the laboratory of Luk
H. Vandenberghe, Ph.D., director of the Grousbeck Gene Therapy Center at
Massachusetts Eye and Ear and Associate Professor of Ophthalmology at
Harvard Medical School. It is currently in preclinical development with a
plan to begin clinical testing in humans later this year. Mason
Freeman, MD, director and founder of the MGH Translational Research
Center is leading the efforts to develop the clinical studies intended
to establish safety and efficacy of the experimental vaccine.
The AAVCOVID Vaccine Program is a unique, gene-based vaccine strategy
that uses adeno-associated viral (AAV) vector, a clinically established
gene transfer technology
leveraging the properties of a harmless viral carrier. AAV is used to
deliver genetic sequences of the SARS-CoV-2 Spike antigen so the body
can develop an immune response to the coronavirus. AAV technology has
been used extensively in the field of gene therapy, and substantial
experience and capacity exists for manufacturing and clinical use of
AAV-based medicines. Two AAV-based drugs have been approved by U.S. Food
and Drug Administration in recent years.
The AAVCOVID vaccine candidate will be administered by an
intramuscular injection. Currently, tests are underway in animal models,
and initial manufacturing activities have begun. Based on the
preclinical findings, one or more candidates will advance into the
clinical phase of testing in humans.
While several types of COVID-19 vaccines are in development
worldwide, AAV technology offers several distinct advantages, including
its adaptability and potential to elicit a beneficial immune response in
people. In addition, other versions of AAV technology have been tested
in the clinic for more than two decades with a favorable safety record.
“AAV is a superior technology for safe and efficient gene delivery,
and the unique technologies we are applying in AAVCOVID support the
potential for a potent immunity to be induced to SARS-CoV-2 from a
single injection,” said Dr. Vandenberghe. “In a crisis, we can harness
the power of molecular biology and develop a draft of a vaccine in
weeks, and that’s what was done here. Now,
clinical studies are needed to establish safety and efficacy of our novel approach,” he said.
“While many organizations are engaged in generating vaccine
candidates to prevent COVID-19 disease, it is very far from certain what
the best approach will be,” said Dr. Freeman. “Dr. Vandenberghe’s
unique vaccine method brings an elegant, novel and extremely creative
approach to meeting our goal: to protect our most vulnerable patients as
well as the healthcare workers who care for them during this and future
viral outbreaks.”
The team is advised by experts at Massachusetts General Hospital and
the Mass General Brigham Innovation Fund and includes deep involvement
of experts from industry with experience in vaccine development,
regulatory affairs, and manufacturing. The research is funded by
philanthropic support led by Wyc Grousbeck, Boston Celtics lead owner
and CEO and Mass. Eye and Ear Chairman, his wife Emilia Fazzalari, CEO
of Cinco Spirits Group LLC, the Grousbeck family, and others.
“This is what innovation looks like. It is a combination of both the
scientific insight of Dr. Vandenberghe and his team as well as the
nimble and collaborative spirit of the institutions and donors who have
come together to move this program from idea to promising
vaccine candidate
at lightning speed,” said Joan W. Miller, MD, Chief of Ophthalmology at
Mass. Eye and Ear, Massachusetts General Hospital, and Brigham and
Women’s Hospital, and Chair of Ophthalmology and David Glendenning Cogan
Professor of Ophthalmology at Harvard Medical School.
“We are deeply grateful to all involved in this collaboration, and
especially to the donors who generously stepped up to spearhead the
initial funding of this program,” said John Fernandez, President of
Mass. Eye and Ear.
“The unprecedented coronavirus pandemic has challenged us all, and
overcoming it demands the best thinking and the most creative ideas from
our scientific and clinical teams supported and strengthened by our
philanthropic communities,” said Peter L. Slavin, MD, President of MGH.
“This collective spirit of innovation, resolve and generosity is the
most powerful weapon we have to fight this formidable virus.”
About the AAVCOVID Technology
The AAVCOVID Vaccine Program is a gene-based vaccine strategy that
seeks to deliver genetic sequences of the SARS-CoV-2 using an
adeno-associated virus (AAV) vector, a harmless virus that serves as a
delivery vehicle into the body.
Vaccination with AAVCOVID delivers the gene code for antigens from
the SARS-CoV-2 Spike protein following a low dose intramuscular
injection, which is designed to elicit an immune response to prevent
infection. This approach is supported by extensive experience with the
safety of the AAV technology platform in other diseases, including the
use of AAVs in two FDA-approved medicines, and preclinical studies on
immunogenicity.
Dr. Vandenberghe and his laboratory began work on the vaccine in
mid-January following the Wuhan outbreak and the first publication of
genetic sequences of the new
coronavirus.
Using a specific AAV with desirable vaccine properties, the program
seeks to induce immunity to prevent infection and or disease in healthy
populations.
AAV is also a rapidly adaptable technology. If a new strain of the
SARS-CoV-2 virus emerges, the genetic code inside the AAVCOVID vaccine
can be exchanged for an updated genetic code and processed into an
updated
vaccine in weeks, according to the researchers.
More information: For more information on AAVCOVID vaccine and the researchers’ biographies, see
masseyeandear.org/covid-19/vaccine