Tvardi Therapeutics and Cara Therapeutics are expected to merge and headquarter in Houston. Photo via Getty Images

Houston-based Tvardi Therapeutics and Cara Therapeutics announced the companies have entered into a definitive merger agreement to combine in an all-stock transaction. Once completed, Houston will house the headquarters.

Tvardi is a clinical-stage biopharmaceutical company that focuses on the development of novel, oral, and small molecule therapies that target STAT3 to treat fibrosis-driven diseases. Tvardi will merge with a wholly owned subsidiary of Cara.

Once complete, the pre-merger Cara Therapeutics stockholders are expected to own approximately 17 percent of the combined company and pre-merger Tvardi Therapeutics investors are expected to own 83 percent of the combined company. Prior to adjustment from the issuance of the shares in the recently completed Tvardi financing and assuming Cara, which went public in 2014, has net cash at closing of between $22.9 million and $23.1 million with the percentage of the combined company that pre-merger Cara stockholders and pre-merger Tvardi stockholders will own upon the closing of the merger, which is subject to further adjustment if Cara’s net cash balance falls outside of the range.

“As we approach meaningful value inflection points next year, including two Phase 2 readouts of our lead program in idiopathic pulmonary fibrosis, followed by the readout in our hepatocellular carcinoma program, this merger, the recently completed financing, and becoming a publicly traded company give us access to the critical funding required to further advance our promising pipeline programs that address significant unmet needs,” Imran Alibhai, CEO of Tvardi Therapeutics, says in a news release.

Also, Tvardi has completed an approximately $28 million private financing from a syndicate of new and existing institutional investors. With the cash from both companies at closing and the proceeds of this financing, the post-merger company plans to have cash to fund its operating expenses and capital expenditure requirements into the second half of 2026.

“I am grateful to the Cara Board, leadership team, and shareholders who share our vision of Tvardi that is well-positioned to introduce effective, new treatment options to patients suffering from serious, chronic, fibrosis-driven diseases,” Alibhai continues.

In 2021, Tvardi emerged from stealth and closed a $74 million series B funding round led by New York-based Slate Path Capital, Florida-based Palkon Capital, Denver-based ArrowMark Partners, and New York-based 683 Capital, with continued support and participation by existing investors, including Houston-based Sporos Bioventures.

Tvardi Therapeutics Inc. has fresh funds to support its drug's advancement in clinical trials. Photo via Getty Images

Cancer-fighting company based in Houston emerges from stealth and snags $74M in its latest round

fresh funds

A Houston-based clinical-stage biopharmaceutical company has raised millions in its latest round.

Tvardi Therapeutics Inc. closed its $74 million series B funding round led by new investors New York-based Slate Path Capital, Florida-based Palkon Capital, Denver-based ArrowMark Partners, and New York-based 683 Capital, with continued support and participation by existing investors, including Houston-based Sporos Bioventures.

"We are thrilled to move out of stealth mode and partner with this lineup of long-term institutional investors," says Imran Alibhai, CEO at Tvardi. "With this financing we are positioned to advance the clinical development of our small molecule inhibitors of STAT3 into mid-stage trials as well as grow our team."

Through Slate Path Capital's investment, Jamie McNab, partner at the firm, will join Tvardi's board of directors.

"Tvardi is the leader in the field of STAT3 biology and has compelling proof of concept clinical data," McNab says in the release. "I look forward to partnering with the management team to advance Tvardi's mission to develop a new class of breakthrough medicines for cancer, chronic inflammation, and fibrosis."

Tvardi's latest fundraise will go toward supporting the company's products in their mid-stage trials for cancer and fibrosis. According to the release, Tvardi's lead product, TTI-101, is being studied in a Phase 1 trial of patients with advanced solid tumors who have failed all lines of therapy. So far, the drug has been well-received and shown multiple durable radiographic objective responses in the cancer patients treated.

Dr. Keith Flaherty, who is a member of Tvardi's scientific advisory board and professor of medicine at Harvard Medical School, offered his support of the company.

"STAT3 is a compelling and validated target. Beyond its clinical activity, Tvardi's lead molecule, TTI-101, has demonstrated direct downregulation of STAT3 in patients," he says in the release. "As a physician, I am eager to see the potential of Tvardi's molecules in diseases of high unmet medical need where STAT3 is a key driver."

After a recent raise, this Houston biotech company is headed to first-in-human clinical trials. Photo via stellanovatx.com

JLABS-based cancer therapies company closes $15.5M series A led by Houston bioventure

fresh funds

Houston-based Stellanova Therapeutics closed a $15.5 million series A financing this month, which will advance the company's first-in-human clinical trials for oncology and help build out its team.

Stellanova is a resident company at Johnson & Johnson's biotech incubator in the TMC (JLABS @ TMC) and is one of four entities that make up cancer and disease biotech company Sporos Bioventures, which officially launched last month after closing a $38.1 million series A of its own.

Stellanova is focused on advancing therapies for cancers that are resistant to current treatments, like chemotherapy and immune therapies. According to a release, it has seen unprecedented anti-tumor activity in preclinical models of pancreas and triple negative breast cancer through the use of its lead antibody, which targets DKK3, a factor secreted by cancer-associated fibroblasts that spur tumors.

The company was founded based on research out of Dr. Rosa Hwang's lab at Houston's MD Anderson Cancer Center.

"We are thrilled to bring Stellanova into the Sporos group of companies. Stellanova means 'new star,' and it is clear the Stellanova team embraces this namesake with their entirely new approach to treating cancer," Harold Levy, Stellanova and Sporos founder and board member said in the statement. "We have been impressed by Stellanova's accomplishments and look forward to being involved in the advancement of the company's platform, one that we believe has the potential to directly combat the most devastating of cancers."

In conjunction with the financing, Stellanova also announced that it has named JLABS @ TMC founding team member Emmanuelle Schuler as the company's inaugural CEO.

Stellanova joins Sporos's Tvardi Therapeutics as it moves toward clinical trials. Tvardi, named a "most promising" by BioHouston and the Rice Alliance in December, is in Phase 1 clinical trial of its STAT3 oral inhibitor for treatment of cancer, inflammation and fibrosis.

Asylia Therapeutics and Nirogy Therapeutics were also founding entities of Sporos. The companies are in the proof of concept and discovery phases and focus on cancer, autoimmune diseases, infectious diseases, and inflammatory diseases.

A Houston biotech company has raised $38.1 million. Photo by Dwight C. Andrews/Greater Houston Convention and Visitors Bureau

Houston-based cancer and disease bio-venture launches after $38.1M series A

money moves

Sporos Bioventures LLC launched this month after closing a $38.1 million round of series A financing.

The Houston-based biotech company aims to accelerate the development of breakthrough therapies for cancer and immune diseases by sharing resources, capital, access to clinical trial infrastructure, and talent from within its knowledgeable team of biotech executives, entrepreneurs, academic scholars, and investors. The company was launched with four entities: Tvardi Therapeutics, Asylia Therapeutics, Nirogy Therapeutics, and Stellanova Therapeutics.

The most advanced of the four entities, Tvardi, is currently in Phase 1 clinical trial to evaluate it's STAT3 oral inhibitor. It was named a "most promising" life sciences company at the 2020 Texas Life Science Forum, hosted by BioHouston and the Rice Alliance in December. The remaining entities are in the development stages and are focused on cancer, autoimmune disease, fibrosis, and tumor growth, among other conditions.

"Sporos was founded to accelerate the development of new medicines by addressing inefficiencies and risk in the establishment of new biotech companies," Peter Feinberg, Sporos co-founder, said in a statement. "By leveraging our extensive network, including the Texas Medical Center, we first identify transformative scientific opportunities and then deploy our top-tier talent, funding, and operational support to drive these insights into a growing pipeline of first-in-class treatment options."

In conjunction with the launch, Sporos named Michael Wyzga as the company's founding CFO. Wyzga was previously CFO at Genzyme for 12 years and has held various senior-level positions in the industry.

"By strategically deploying valuable resources to young companies that would not typically be supported by top-tier seasoned talent and infrastructure, we believe that we can efficiently bring a diverse set of therapies through clinical development," Wyzga said in a statement. "I am thrilled to join a team with decades of scientific and operational expertise and look forward to guiding our strategic and financial growth."

Wyzga joins a team of seasoned leaders in the biotech and cancer research fields, including Dr. Ronald DePinho, professor of Cancer Biology and past president of MD Anderson, who will serve as the chair of Sporos' Strategic Advisory Council. Jeno Gyuris, a biotech executive in oncology drug discovery and development with more than 25 years of experience, will serve as chief science officer. And Alex Cranberg, an experienced active early-stage biotech investor, serves as director.

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CultureMap Emails are Awesome

10 promising Houston startups that made headlines in 2025

year in review

Editor's note: As we reflect on 2025, we're looking back at the stories and startups that made waves in Houston's innovation scene. These 10 startups reached memorable milestones, won prestigious awards, found creative solutions, and disrupted their industries.

Persona AI: Houston humanoid robotics startup inks new deal to deploy its rugged robots

A concept design rendering of Persona AI's humanoid robot. The company is expanding at the Ion and plans to deliver prototype humanoids by the end of 2026 for complex shipyard welding tasks. Rendering courtesy Persona AI.

Persona AI is building modularized humanoid robots that aim to deliver continuous, round-the-clock productivity and skilled labor for "dull, dirty, dangerous, and declining" jobs. The company was founded by Houston entrepreneur Nicolaus Radford, who serves as CEO, along with CTO Jerry Pratt and COO Jide Akinyode. It raised $42 million in pre-seed funding this year and is developing its prototype of a robot-welder for Hyundai's shipbuilding division, which it plans to unveil in 2026. The company won in the Deep Tech Business category at this year's Houston Innovation Awards. Continue reading.

Rheom Materials: Houston startup unveils its innovative leather alternative at the rodeo

Rheom Materials presented its bio-based alternative, Shorai, a 93 percent bio-based leather, at the rodeo and plans to scale it up this year. Photos courtesy Rheom Materials

Rheom Materials presented its scalable, bio-based alternative known as Shorai, a 93 percent bio-based leather, through two custom, western-inspired outfits that showed off cowboy flair through a sustainable lens at the Houston Livestock Show and Rodeo earlier this year.

Next up, the company said it aimed to scale production of Shorai, the Japanese word for “future,” at a competitive price point, while also reducing its carbon footprint by 80 percent when compared to synthetic leather. The company also made a large-scale production partnership with a thermoplastic extrusion and lamination company, Bixby International, this year. Continue reading.

Koda Health: Houston digital health platform Koda closes $7 million funding round

Tatiana Fofanova and Dr. Desh Mohan, founders of Koda Health, which recently closed a $7 million series A. Photo courtesy Koda Health.

Houston-based digital advance care planning company Koda Health closed an oversubscribed $7 million series A funding round this year. The round, led by Evidenced, with participation from Mudita Venture Partners, Techstars and Texas Medical Center, will allow the company to scale operations and expand engineering, clinical strategy and customer success. Koda Health, saw major growth this year by integrating its end-of-life care planning platform with Dallas-based Guidehealth in April and with Epic Systems in July. The company won the Health Tech Business category at the 2025 Houston Innovation Awards. Continue reading.

Veloci Running: Student-led startup runs away with prestigious prize at Rice competition

The H. Albert Napier Rice Launch Challenge awarded $100,000 in equity-free funding to student-led startups, including first-place finisher Veloci Running. Photo courtesy of Rice University.

Veloci Running took home the first-place prize and $50,000 at the annual Liu Idea Lab for Innovation and Entrepreneurship's H. Albert Napier Rice Launch Challenge. The company was founded by Tyler Strothman, a former track and field athlete and senior at Rice, majoring in sport management. Inspired by the foot pain he suffered due to the narrow toe boxes in his running shoes, Strothman decided to create a naturally shaped shoe designed to relieve lower leg tightness and absorb impact. Additional prize winners included SteerBio, Kinnections, Labshare and several others. Continue reading.

Square Robot Inc.: Houston robotics co. unveils new robot that can handle extreme temperatures

The new robot eliminates the need for humans to enter dangerous and toxic environments. Photo courtesy of Square Robot

Houston- and Boston-based Square Robot Inc.'s newest tank inspection robot became commercially available and certified to operate at extreme temperatures this fall. The new robot, known as the SR-3HT, can operate from 14°F to 131°F, representing a broader temperature range than previous models in the company's portfolio. According to the company, its previous temperature range reached 32°F to 104°F. The company also announced a partnership with downstream and midstream energy giant Marathon Petroleum Corp. (NYSE: MPC) last month. Continue reading.

Bot Auto: Houston autonomous trucking co. completes first test run without human intervention

Bot Auto completed its first test run without human assistance in Houston. Photo courtesy Bot Auto.

Houston-based Bot Auto, an autonomous trucking company, completed its first test run without human assistance earlier this year. Bot Auto conducted the test in Houston. The transportation-as-a-service startup added that this milestone “serves as a validation benchmark, demonstrating the maturity and safety of Bot Auto’s autonomy stack and test protocols.” This summer, founder Xiaodi Hou told the Front Lines podcast that Bot Auto had raised more than $45 million. Continue reading.

Nomad: Screen-free hiking app developed in Houston earns 'Best of the Best' award

NOMAD aims to help hikers stay in the moment while still utilizing technology. Photo courtesy UH.

An AI-powered, screen-free hiking system developed by Varshini Chouthri, a recent industrial design graduate from the University of Houston, received this year's Red Dot’s “Best of the Best” award, which recognizes the top innovative designs around the world. Known as NOMAD, the system aims to help users stay in the moment while still utilizing technology. Continue reading.

Little Place Labs, Helix Earth, Tempest Droneworx: Houston startups win big at SXSW 2025 pitch competition

Two Houston startups won the SXSW Pitch showcase in their respective categories. Photo via Getty Images

Houston had a strong showing at the SXSW Pitch showcase in Austin this year, with several local startups claiming top prizes in their respective categories.

Little Place Labs, a Houston space data startup, won the Security, GovTech & Space competition. Clean-tech company Helix Earth, which spun out of Rice University and was incubated at Greentown Labs, won in the Smart Cities, Transportation & Sustainability contest. Tempest Droneworx, a Houston-based company that provides real-time intelligence collected through drones, robots and sensors, won the Best Speed Pitch award. Continue reading.