Houston-based Pulmotect announced a grant from the U.S. Department of Defense that will fund two COVID-19 drug trials. Photo via Getty Images

The Pentagon is putting its financial power behind two COVID-19 clinical trials led by Houston-based biotech company Pulmotect Inc.

The U.S. Department of Defense is pumping as much as $6 million into the pair of Phase 2 trials, which involve a total of 300 U.S. participants, according to a January 27 news release from Pulmotect. When it's inhaled, Pulmotect's drug, PUL-042, stimulates the lungs' immune system to fight bacteria, viruses, or fungi that cause respiratory illnesses.

Pulmotect joins a number of Houston organizations that have tapped into Department of Defense funding for research into COVID-19 therapies.

In January, for instance, researchers at the University of Texas Health Science Center at Houston (UTHealth) collected $5.1 million from the department to evaluate whether an investigational oral drug, vadadustat, can help prevent acute respiratory distress syndrome (ARDS) in COVID-19 patients.

"It's wonderful that we have COVID-19 vaccinations available now, but they won't directly help patients who are already sick in the hospital or who will become sick in the future," Dr. Holger Eltzschig, chairman of Department of Anesthesiology at UTHealth's McGovern Medical School, says in a news release.

Also in January, Houston-based clinical research organization Pharm-Olam LLC sealed a $36.3 million deal with the Department of Defense to conduct a clinical trial of an antibody treatment for inflammatory problems associated with COVID-19.

So far, Pulmotect's PUL-042 has shown promise in battling the coronaviruses that trigger MERS (Middle East respiratory syndrome) and SARS (severe acute respiratory syndrome). The current trials related to the coronavirus that causes COVID-19 are evaluating PUL-042's effect on prevention of infections and reducing the severity of the disease.

Pulmotect initially designed PUL-042 to treat and prevent respiratory complications in cancer patients. But once the coronavirus pandemic set in, the company pivoted to testing the effectiveness of its drug in combatting the virus that causes COVID-19. Last May, the U.S. Food and Drug Administration (FDA) approved Pulmotect's COVID-19 trials.

Pulmotect says PUL-042 someday could be a therapy that's deployed during pandemics, epidemics, and bioterrorism attacks.

Invented at Houston's MD Anderson Cancer Center and at Texas A&M University, PUL-042 has earned patents in 10 countries. The National Institutes of Health, the Cancer Prevention and Research Institute of Texas, and other organizations have supported R&D for PUL-042.

Founded in 2007, Pulmotect emerged from Houston's Fannin Innovation Studio, which nurtures early stage companies in the life sciences sector. In September 2019, the company brought aboard Dr. Colin Broom as CEO. He previously was CEO of an Irish biopharmaceutical company.

Thus far, Pulmotect has garnered about $18 million in equity and about $20 million in other funding.

Before the pandemic, Pulmotect was evaluating the effectiveness of PUL-042 in treating patients with mild chronic obstructive pulmonary disease (COPD) who've been exposed to a respiratory virus.

COPD, which affects 30 million Americans, is the No. 3 cause of death in the U.S., according to the COPD Foundation. Pulmotect says 40 percent of COPD-related costs could be avoided by heading off complications and hospitalizations, which usually result from COPD problems caused by a bacterial or viral infection. In this context, the drug is meant to treat cancer patients undergoing chemotherapy whose weakened immune systems make them susceptible to pneumonia.

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6+ can't-miss Houston business and innovation events in March

where to be

Editor's note: March brings the return of some of Houston’s signature innovation events, plus insightful talks and celebrations in honor of Women's History Month. Here’s what not to miss and how to register. Please note: this article may be updated to include additional event listings.

March 3-4 — Houston MedTech Rodeo

Head to Armadillo Palace for the annual Houston MedTech Rodeo. The casual, Texas-themed conference brings together 350 medtech professionals who come from over 10 countries and 15 states to highlight Houston's growing medtech ecosystem. The event will feature panel discussions, startup showcases, networking sessions—plus, armadillo races, mechanical bull riding and live country music.

The event begins March 3 at Armadillo Palace on Kirby Drive. Register here.

March 4 – Humans of Healthcare

Houston Methodist Center for Innovation will present its new quarterly speaker series, Humans of Healthcare. The series will feature a panel of experts who will share about their career paths and discuss the nuances of the health care industry. This month's session will focus on IT. The panel will be moderated by Houston Methodist's Director of Innovation Murat Uralkan.

The event is Wednesday, March 4, from 5-6 p.m. at the Ion. Register here.

March 5 — The Future of Women in STEM

Celebrate Women's History Month at SUPERGirls SHINE Foundation's The Future of Women in STEM event, presented in partnership with the Ion. The event will feature speakers and panelists, including Kalila Winters Hines, senior public affairs advisor for Holland & Knight; Dr. Natacha Chough, NASA Johnson Space Center Flight Surgeon; and Andrea Course, rocket scientist and founder of Course Investments.

The event is Thursday, March 5, from 8:30-10 a.m. at the Ion. Register here.

March 10-12 — World Hydrogen & Carbon Americas

S&P Global Energy brings together two leading events—Carbon Management Americas and World Hydrogen North America—to form a new must-attend event for those in the hydrogen and carbon industries. More than 800 senior leaders from across the energy value chain will attend this event featuring immersive roundtable discussions, hands-on training, real-world case studies and unparalleled networking opportunities.

This event begins March 10 at the Marriott Marquis Houston. Register here.

March 20 — Ideas to Impact Accelerator Graduation and Showcase

Join Impact Hub Houston as it celebrates its inaugural Ideas to Impact Accelerator cohort. The 16-week accelerator is designed to help early-stage entrepreneurs validate their business models, strengthen confidence and gain traction. Hear short pitches and network with founders and mentors.

The event is Friday, March 20, from noon-2 p.m. at the Ion. Register here.

March 23-27 — CERAWeek 2026

CERAWeek 2026 will focus on "Convergence and Competition: Energy, Technology and Geopolitics." The industry's foremost thought leaders will convene in Houston to cultivate relationships and exchange transformative ideas during the annual event. CERAWeek 2026 will explore breakthroughs, cross-industry connections and powerful partnerships that are accelerating the transformation of the global energy system. 2026 highlights include an appearance by tech magnate Bill Gates.

This event begins March 23. Register here.

March 24-25 — 2026 Energy Venture Day and Pitch Competition

The Energy Venture Day and Pitch Competition, co-hosted by the Rice Alliance, Ion, HETI and TEX-E, offers two days of exciting pitches from more than 40 global energy ventures that are transforming the industry. On Tuesday, March 24, you can attend a fast-paced pitch preview event at the Ion, followed by the official Pitch Competition at 1 pm on Wednesday, March 25, at the George R. Brown Convention Center.

March 30-April 4 — H-Town Roundup

Celebrate innovation, entrepreneurship and collaboration at Houston Exponential's sixth-annual H-Town Roundup. During the free event series, previously known as Houston Tech Rodeo, attendees can expect insightful talks, workshops and networking events at venues across the city.

This event begins Monday, March 30. Register here.

Intuitive Machines secures $175M equity investment to fuel growth

space funding

Houston-based space infrastructure and services company Intuitive Machines has secured a $175 million equity investment from unidentified institutional investors. The investors received shares of Class A stock in exchange for their funding.

Publicly held Intuitive Machines (Nasdaq: LUNR) says it plans to use the capital to help build revenue and invest in technology, including communications and data-processing networks.

“We are building a scalable infrastructure platform from low-Earth orbit to the moon and into deep space,” Intuitive Machines CEO Steve Altemus said in a news release. “With this investment, we can accelerate the integration of the combined company’s collective capabilities to deliver next-generation data, communications, and space-based infrastructure services.”

Intuitive Machines says the $175 million investment will improve its ability to secure deals for satellite systems, the proposed Golden Dome missile defense system and the proposed Mars telecommunications orbiter.

As the company pursues those deals, it’s seeking partners to develop space-based data centers.

The $175 million equity stake comes on the heels of Intuitive Machines completing its $800 million cash-and-stock purchase of Lanteris Space Systems. Intuitive Machines bought the satellite manufacturer from private equity firm Advent International.

In the third quarter, which ended Sept. 30, Intuitive Machines posted a $10 million net loss on revenue of $52.4 million.