Company: TVRD
Filing Date: 2025-10-20
Form Type: S-1/A
Source: 0001104659-25-100896
Chunk: 210

Company: Tvardi Therapeutics, Inc.
Filing Date: 2025-10-20
Form: S-1/A
Chunk 210
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 to the FDA and investigators for serious and unexpected suspected AEs, findings from other clinical trials suggesting a significant risk to humans exposed to the same or similar drugs, findings from animal or in vitro preclinical testing suggesting a significant risk to humans and any clinically important increased incidence of a serious suspected adverse reaction compared to that listed in the protocol or investigator brochure.

Regulatory authorities, an IRB or the sponsor may suspend or discontinue a clinical trial at any time on various grounds, including a finding that the subjects are being exposed to an unacceptable health risk, the clinical trial is not being conducted in accordance with the FDA’s or the IRB’s requirements, or if the drug has been associated with unexpected serious harm to subjects. Some clinical trials also include a DSMB, which receives special access to unblinded data during the clinical trial and may advise the sponsor to halt the clinical trial if it determines that there is an unacceptable safety risk for subjects or other grounds, such as no demonstration of efficacy.

In general, for purposes of NDA approval, human clinical trials are typically conducted in three sequential phases that may overlap.

Phase 1 . Clinical trials are initially conducted to test the drug candidate for safety, dosage tolerance, structure-activity relationships, mechanism of action, absorption, metabolism, distribution and excretion in healthy volunteers or subjects with the target disease or condition. Phase 1a trials are typically single ascending dose escalation of the investigational drug alone, while Phase 1b trials, or the Phase 1b portion of a combined phase trial (Phase 1b/2) may have multiple ascending doses to expand and identify optimal dosing, including in combination with other drugs. If possible, Phase 1 clinical trials may also be used to gain early evidence of product effectiveness.

Phase 2 . Controlled clinical trials are conducted with groups of subjects with a specified disease or condition to provide enough data to evaluate the preliminary efficacy, optimal dosages and dosing schedule and expanded evidence of safety. Multiple Phase 2 clinical trials may be conducted to obtain information prior to beginning larger and more expansive Phase 3 clinical trials.

Phase 3 . These clinical trials are generally undertaken in larger subject populations to provide statistically significant evidence of clinical efficacy and to further test for safety in an expanded subject population at multiple clinical trial sites. These clinical trials are intended to establish the overall risk/benefit ratio of the product and provide an adequate basis for product labeling. These clinical trials may be done at clinical trial sites outside the United States as long as the global sites are also representative of