Houston biotech company is creating a drug that could fight the coronavirus

Med tech

Pulmotect, a clinical-stage biotechnology company based in Houston, is testing a drug that could be useful in mitigating the threats of the coronavirus, which is currently been recognized as a global health emergency. Getty Images

A drug being developed by a Houston biopharmaceutical company eventually could help combat what the World Health Organization has proclaimed a global health emergency.

Experiments conducted by clinical-stage biotechnology company Pulmotect Inc. show its PUL-042 inhaled drug has proven effective in protecting mice against two types of coronavirus: severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS). Researchers performed those tests at the University of Texas Medical Branch at Galveston.

In the Galveston experiments, a single inhaled dose of PUL-042 protected lab mice from the SARS virus, and it greatly reduced the amount of virus in their lungs after the mice became infected with SARS or MERS.

"With the risks of virulent coronaviruses and other threats increasing, as shown by the recent outbreak in Wuhan that has already spread from China to other countries including the United States, Pulmotect is optimistic that its immune-stimulating technology could be useful in mitigating the threats of current and emerging pathogens and protecting vulnerable populations," says CEO Dr. Colin Broom in a news release.

The ability of PUL-042 to ward off the newest type of coronavirus, 2019-nCoV, hasn't been tested yet. However, the drug eventually could help prevent the new virus from spreading, says Broom, who joined Pulmotect as CEO last fall. A separate study would be required to evaluate PUL-042 in patients exposed to 2019-nCoV, he says.

"PUL-042 has the potential to prevent and treat respiratory complications in many high-risk patient populations, including those where no effective therapies are currently available, as is the case with the current coronavirus outbreak," Brenton Scott, president and chief operating officer of Pulmotect, says in the release.

Since its discovery in late December 2019 in Wuhan, China, nearly 9,800 people around the world were infected with 2019-nCoV as of January 31, The New York Times reported. Of those people, more than 200 died. On January 30, the World Health Organization (WHO) declared the virus outbreak a global health emergency.

No specific treatment or cure for 2019-nCoV virus is available. This virus is among seven known coronaviruses.

Symptoms of the Wuhan coronavirus include fever, cough, and shortness of breath, according to the U.S. Centers for Disease Control and Prevention (CDC). The virus can cause pneumonia, SARS, kidney failure, or even death, the Virginia Department of Health says.

PUL-042 "would be a great tool to have available for future outbreaks and epidemics, in addition to being used more routinely for more common infections," Broom says.

Fighting coronaviruses is a potential byproduct of PUL-042.

Initially, Pulmotect is focusing development of PUL-042 on the prevention and treatment of respiratory complications suffered by cancer patients with suppressed immune systems. Phase 1 clinical trials already have taken place in the U.S., and Phase 2 clinical trials are scheduled for later this year.

A separate trial of PUL-042 is underway in London. There, the drug is being tested on patients with chronic obstructive pulmonary disease (COPD) who are prone to lung infections. COPD is an inflammatory disease that blocks airflow from the lungs. People with COPD face a heightened risk of conditions like heart disease and lung cancer, the Mayo Clinic says.

Broom says PUL-042 is a few years away from being considered for approval by the U.S. Food and Drug Administration (FDA).

To date, Pulmotect has raised more than $28 million in outside funding. Founded in 2007, Pulmotect emerged from Houston's Fannin Innovation Studio, which nurtures early stage companies in the life sciences sector.

Patents for PUL-042, invented by MD Anderson Cancer Center and Texas A&M University, have been issued in nine countries.

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Rice team keeps CO2-to-fuel devices running 50 times longer in new study

Bubbling Up

In a new study published in the journal Science, a team of Rice University researchers shared findings on how acid bubbles can improve the stability of electrochemical devices that convert carbon dioxide into useful fuels and chemicals.

The team led by Rice associate professor Hoatian Wang addressed an issue in the performance and stability of CO2 reduction systems. The gas flow channels in the systems often clog due to salt buildup, reducing efficiency and causing the devices to fail prematurely after about 80 hours of operation.

“Salt precipitation blocks CO2 transport and floods the gas diffusion electrode, which leads to performance failure,” Wang said in a news release. “This typically happens within a few hundred hours, which is far from commercial viability.”

By using an acid-humidified CO2 technique, the team was able to extend the operational life of a CO2 reduction system more than 50-fold, demonstrating more than 4,500 hours of stable operation in a scaled-up reactor.

The Rice team made a simple swap with a significant impact. Instead of using water to humidify the CO2 gas input into the reactor, the team bubbled the gas through an acid solution such as hydrochloric, formic or acetic acid. This process made more soluble salt formations that did not crystallize or block the channels.

The process has major implications for an emerging green technology known as electrochemical CO2 reduction, or CO2RR, that transforms climate-warming CO2 into products like carbon monoxide, ethylene, or alcohols. The products can be further refined into fuels or feedstocks.

“Using the traditional method of water-humidified CO2 could lead to salt formation in the cathode gas flow channels,” Shaoyun Hao, postdoctoral research associate in chemical and biomolecular engineering at Rice and co-first author, explained in the news release. “We hypothesized — and confirmed — that acid vapor could dissolve the salt and convert the low solubility KHCO3 into salt with higher solubility, thus shifting the solubility balance just enough to avoid clogging without affecting catalyst performance.”

The Rice team believes the work can lead to more scalable CO2 electrolyzers, which is vital if the technology is to be deployed at industrial scales as part of carbon capture and utilization strategies. Since the approach itself is relatively simple, it could lead to a more cost-effective and efficient solution. It also worked well with multiple catalyst types, including zinc oxide, copper oxide and bismuth oxide, which are allo used to target different CO2RR products.

“Our method addresses a long-standing obstacle with a low-cost, easily implementable solution,” Ahmad Elgazzar, co-first author and graduate student in chemical and biomolecular engineering at Rice, added in the release. “It’s a step toward making carbon utilization technologies more commercially viable and more sustainable.”

A team led by Wang and in collaboration with researchers from the University of Houston also recently shared findings on salt precipitation buildup and CO2RR in a recent edition of the journal Nature Energy.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.

Houston foundation grants $27M to support Texas chemistry research

fresh funding

Houston-based The Welch Foundation has doled out $27 million in its latest round of grants for chemical research, equipment and postdoctoral fellowships.

According to a June announcement, $25.5 million was allocated for the foundation's longstanding research grants, which provide $100,000 per year in funding for three years to full-time, regular tenure or tenure-track faculty members in Texas. The foundation made 85 grants to faculty at 16 Texas institutions for 2025, including:

  • Michael I. Jacobs, assistant professor in the chemistry and biochemistry department at Texas State University, who is investigating the structure and thermodynamics of intrinsically disordered proteins, which could "reveal clues about how life began," according to the foundation.
  • Kendra K. Frederick, assistant professor in the biophysics department at The University of Texas Southwestern Medical Center, who is studying a protein linked to Parkinson’s disease.
  • Jennifer S. Brodbelt, professor in chemistry at The University of Texas at Austin, who is testing a theory called full replica symmetry breaking (fullRSB) on glass-like materials, which has implications for complex systems in physics, chemistry and biology.

Additional funding will be allocated to the Welch Postdoctoral Fellows of the Life Sciences Research Foundation. The program provides three-year fellowships to recent PhD graduates to support clinical research careers in Texas. Two fellows from Rice University and Baylor University will receive $100,000 annually for three years.

The Welch Foundation also issued $975,000 through its equipment grant program to 13 institutions to help them develop "richer laboratory experience(s)." The universities matched funds of $352,346.

Since 1954, the Welch Foundation has contributed over $1.1 billion for Texas-nurtured advancements in chemistry through research grants, endowed chairs and other chemistry-related ventures. Last year, the foundation granted more than $40.5 million in academic research grants, equipment grants and fellowships.

“Through funding basic chemical research, we are actively investing in the future of humankind,” Adam Kuspa, president of The Welch Foundation, said the news release. “We are proud to support so many talented researchers across Texas and continue to be inspired by the important work they complete every day.”

New Houston biotech co. developing capsules for hard-to-treat tumors

biotech breakthroughs

Houston company Sentinel BioTherapeutics has made promising headway in cancer immunotherapy for patients who don’t respond positively to more traditional treatments. New biotech venture creation studio RBL LLC (pronounced “rebel”) recently debuted the company at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago.

Rima Chakrabarti is a neurologist by training. Though she says she’s “passionate about treating the brain,” her greatest fervor currently lies in leading Sentinel as its CEO. Sentinel is RBL’s first clinical venture, and Chakrabarti also serves as cofounder and managing partner of the venture studio.

The team sees an opportunity to use cytokine interleukin-2 (IL-2) capsules to fight many solid tumors for which immunotherapy hasn't been effective in the past. “We plan to develop a pipeline of drugs that way,” Chakrabarti says.

This may all sound brand-new, but Sentinel’s research goes back years to the work of Omid Veiseh, director of the Rice Biotechnology Launch Pad (RBLP). Through another, now-defunct company called Avenge Bio, Veiseh and Paul Wotton — also with RBLP and now RBL’s CEO and chairman of Sentinel — invested close to $45 million in capital toward their promising discovery.

From preclinical data on studies in mice, Avenge was able to manufacture its platform focused on ovarian cancer treatments and test it on 14 human patients. “That's essentially opened the door to understanding the clinical efficacy of this drug as well as it's brought this to the attention of the FDA, such that now we're able to continue that conversation,” says Chakrabarti. She emphasizes the point that Avenge’s demise was not due to the science, but to the company's unsuccessful outsourcing to a Massachusetts management team.

“They hadn't analyzed a lot of the data that we got access to upon the acquisition,” explains Chakrabarti. “When we analyzed the data, we saw this dose-dependent immune activation, very specific upregulation of checkpoints on T cells. We came to understand how effective this agent could be as an immune priming agent in a way that Avenge Bio hadn't been developing this drug.”

Chakrabarti says that Sentinel’s phase II trials are coming soon. They’ll continue their previous work with ovarian cancer, but Chakrabarti says that she also believes that the IL-2 capsules will be effective in the treatment of endometrial cancer. There’s also potential for people with other cancers located in the peritoneal cavity, such as colorectal cancer, gastrointestinal cancer and even primary peritoneal carcinomatosis.

“We're delivering these capsules into the peritoneal cavity and seeing both the safety as well as the immune activation,” Chakrabarti says. “We're seeing that up-regulation of the checkpoint that I mentioned. We're seeing a strong safety signal. This drug was very well-tolerated by patients where IL-2 has always had a challenge in being a well-tolerated drug.”

When phase II will take place is up to the success of Sentinel’s fundraising push. What we do know is that it will be led by Amir Jazaeri at MD Anderson Cancer Center. Part of the goal this summer is also to create an automated cell manufacturing process and prove that Sentinel can store its product long-term.

“This isn’t just another cell therapy,” Chakrabarti says.

"Sentinel's cytokine factory platform is the breakthrough technology that we believe has the potential to define the next era of cancer treatment," adds Wotton.

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