GeoVax Announces Gedeptin® Patient Enrollment Closure for Phase 1/2 Clinical Trial Among Advanced Head and Neck Cancer Patients
January 04 2024 - 9:00AM
via NewMediaWire – GeoVax Labs, Inc. (Nasdaq: GOVX), a
biotechnology company developing immunotherapies and vaccines
against cancers and infectious diseases, today announced the
closure of patient enrollment for the Phase 1/2 clinical study
evaluating Gedeptin® in patients suffering from advanced head and
neck cancer.
Kelly McKee, MD, MPH, GeoVax’s Chief Medical Officer, stated,
“Completion of this trial will be a significant milestone in our
Gedeptin clinical development program. Allowing time for the
maximum number of cycles of Gedeptin therapy and patient follow-up,
we expect to complete the study by the third quarter of this year.
In the interim, we are in active discussions with advisors on
protocol development in support of a follow-on Phase 2 or Phase 2/3
trial among patients with advanced head and neck cancer in whom
current therapeutic options are suboptimal. Our intent is to
discuss this follow-on protocol with the FDA, in conjunction with a
complete review of the results of the current trial, to ensure
alignment with the regulator’s expectations. We expect that
such discussions will include addressing the opportunity and basis
for an expedited approval pathway.”
Dr. McKee continued, “Demonstrating the safety, tolerability,
and stabilization or shrinkage of injected tumors in patients
receiving multiple cycles of Gedeptin opens the door to advancing
this promising therapeutic in additional patients with advanced
head and neck cancer as well as in patients with other solid tumor
types and at multiple points in their therapeutic journey.”
David Dodd, GeoVax’s Chairman and CEO, commented, “We believe
that the successful completion of the current trial, in conjunction
with earlier findings from the completed Phase 1 first-in-human
trial and preclinical investigations, provide a sound rationale for
proceeding with further Gedeptin investigations. These will
include adjustments to the Gedeptin treatment regimen and
combination with immune checkpoint inhibitors in advanced head and
neck cancer as well as for additional cancerous and non-cancerous
tumor indications. These advances represent a significant potential
opportunity for GeoVax to improve the performance of immune
checkpoint inhibitors and/or introduce Gedeptin as a treatment
option in patients with earlier-stage disease.”
About Gedeptin®
Gedeptin is a novel patented product/technology for the
treatment of solid tumors through a gene therapy strategy known as
Gene-Directed Enzyme Prodrug Therapy (GDEPT). In GDEPT, a vector is
used to selectively transduce tumor cells with a nonhuman gene,
which expresses an enzyme that can convert a nontoxic prodrug into
a very toxic antitumor compound in situ.
The ongoing Phase 1/2 trial (ClinicalTrials.gov Identifier:
NCT03754933) is evaluating the safety and efficacy of repeat cycles
of Gedeptin therapy in patients with recurrent head and neck
squamous cell carcinoma (HNSCC), with tumor(s) accessible for
injection and no curable treatment options. The protocol entails up
to five treatment cycles, each consisting of three intratumoral
injections of Gedeptin over two days followed by infusion of a
prodrug, fludarabine phosphate, once a day for three days. A
completed Phase 1 dose-ranging study demonstrated that treating a
tumor with a single cycle of Gedeptin, followed by fludarabine
infusions, was well tolerated, with evidence of a reduction in
tumor size in patients with solid tumors.
A previously reported interim data review demonstrated:
- No dose limiting toxicities or serious adverse events (SAEs)
are definitively attributable to treatment. Additionally, no
adverse events above grade 3 severity have been reported.
- Up to 5 cycles of Gedeptin treatment have been administered
without limiting sequelae. Intratumoral expression of the PNP
transgene by RT-PCR has been established in treated tumors studied
to date.
- Impairment of tumor growth (i.e., "stable disease" using RECIST
1.1 evaluation criteria) in targeted lesions was seen in 5 of 7
patients; tumor response assessment in one patient remains under
study.
The current study is being funded in part by the FDA pursuant to
its Orphan Products Clinical Trials Grants Program. The FDA
has also granted Gedeptin orphan drug status for the intratumoral
treatment of anatomically accessible oral and pharyngeal cancers,
including cancers of the lip, tongue, gum, floor of mouth, salivary
gland, and other oral cavities.
About GeoVax
GeoVax Labs, Inc. is a clinical-stage biotechnology company
developing novel therapies and vaccines for solid tumor cancers and
many of the world’s most threatening infectious diseases. The
company’s lead program in oncology is a novel oncolytic solid tumor
gene-directed therapy, Gedeptin®, presently in a multicenter Phase
1/2 clinical trial for advanced head and neck cancers. GeoVax’s
lead infectious disease candidate is GEO-CM04S1, a next-generation
COVID-19 vaccine targeting high-risk immunocompromised patient
populations. Currently in three Phase 2 clinical trials, GEO-CM04S1
is being evaluated as a primary vaccine for immunocompromised
patients such as those suffering from hematologic cancers and other
patient populations for whom the current authorized COVID-19
vaccines are insufficient, and as a booster vaccine in patients
with chronic lymphocytic leukemia (CLL). In addition, GEO-CM04S1 is
in a Phase 2 clinical trial evaluating the vaccine as a more
robust, durable COVID-19 booster among healthy patients who
previously received the mRNA vaccines. GeoVax has a leadership team
who have driven significant value creation across multiple life
science companies over the past several decades. For more
information, visit our website: www.geovax.com.
Forward-Looking Statements
This release contains forward-looking statements regarding
GeoVax’s business plans. The words “believe,” “look forward to,”
“may,” “estimate,” “continue,” “anticipate,” “intend,” “should,”
“plan,” “could,” “target,” “potential,” “is likely,” “will,”
“expect” and similar expressions, as they relate to us, are
intended to identify forward-looking statements. We have based
these forward-looking statements largely on our current
expectations and projections about future events and financial
trends that we believe may affect our financial condition, results
of operations, business strategy and financial needs. Actual
results may differ materially from those included in these
statements due to a variety of factors, including whether: GeoVax
is able to obtain acceptable results from ongoing or future
clinical trials of its investigational products, GeoVax’s
immuno-oncology products and preventative vaccines can provoke the
desired responses, and those products or vaccines can be used
effectively, GeoVax’s viral vector technology adequately amplifies
immune responses to cancer antigens, GeoVax can develop and
manufacture its immuno-oncology products and preventative vaccines
with the desired characteristics in a timely manner, GeoVax’s
immuno-oncology products and preventative vaccines will be safe for
human use, GeoVax’s vaccines will effectively prevent targeted
infections in humans, GeoVax’s immuno-oncology products and
preventative vaccines will receive regulatory approvals necessary
to be licensed and marketed, GeoVax raises required capital to
complete development, there is development of competitive products
that may be more effective or easier to use than GeoVax’s products,
GeoVax will be able to enter into favorable manufacturing and
distribution agreements, and other factors, over which GeoVax has
no control.
Further information on our risk factors is contained in our
periodic reports on Form 10-Q and Form 10-K that we have filed and
will file with the SEC. Any forward-looking statement made by us
herein speaks only as of the date on which it is made. Factors or
events that could cause our actual results to differ may emerge
from time to time, and it is not possible for us to predict all of
them. We undertake no obligation to publicly update any
forward-looking statement, whether as a result of new information,
future developments or otherwise, except as may be required by
law.
Company Contact: |
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Investor Relations Contact: |
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Media Contact: |
info@geovax.com |
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paige.kelly@sternir.com |
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sr@roberts-communications.com |
678-384-7220 |
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