Ziritaxestat in Idiopathic Pulmonary Fibrosis: NCT03733444 Clinical Landscape Report 2026

16 October 2026
9 min read

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This Clinical Landscape Report was built with PatSnap Life Sciences MCP workflows. Clinical Trials MCP supplies protocol and result records, Drug & Asset MCP adds asset context, and Company & Deal Intelligence MCP resolves sponsor background. Use the same structured MCP building blocks in your research workflow.

Data snapshot: 16 October 2026. This strategic research report is not medical, regulatory or investment advice. Trial status and dates can change.

Phase 3

Clinical phase

Terminated

Recruitment status

not reported

Planned enrollment

2021-03-30

Primary-completion proxy

Executive view

NCT03733444 evaluates Ziritaxestat in Idiopathic Pulmonary Fibrosis. The disclosed sponsor is Lakefront Biotherapeutics, the design is Interventional, and the geographic footprint is Argentina, Hungary, United States, Japan, New Zealand, Canada, Netherlands, Poland, South Korea, South Africa, Mexico, Italy, Israel, France, Germany. The first listed primary endpoint is Annual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52, assessed over Baseline up to week 52.

The key landscape question is whether this protocol can generate a clinically interpretable signal relative to nearby programs. Phase alone is not a measure of evidence quality. Endpoint relevance, comparator choice, masking, enrollment feasibility, patient selection, country coverage and follow-up must be considered together.

PatSnap MCP Servers make this assessment reproducible by keeping protocol facts, result evidence, asset attributes and sponsor identity in separate structured calls.

How the MCP evidence stack was assembled

Clinical Trials MCP clinical_trial_fetch retrieved the design, outcomes, phase, status, enrollment, sponsor, countries and timing for NCT03733444 and selected peers. clinical_trial_result_fetch supplied detailed result records from the wider Idiopathic Pulmonary Fibrosis landscape. Drug & Asset MCP drug_fetch was queried for Ziritaxestat, while Company & Deal Intelligence MCP organization_fetch was queried for Lakefront Biotherapeutics.

This separation reduces a common diligence error: treating a registry label, a company description or a result excerpt as if each represented the complete evidence package. Explore the source workflow at the PatSnap MCP marketplace.

Trial landscape table

TrialAsset / interventionPhase / statusSponsorGeographyPrimary endpointReadout proxy
NCT03733444ZiritaxestatPhase 3 / TerminatedLakefront BiotherapeuticsArgentina, Hungary, United States, Japan, New Zealand, Canada, Netherlands, Poland, South Korea, South Africa, Mexico, Italy, Israel, France, GermanyAnnual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52
Baseline up to week 52
2021-03-30
NCT05427253C-106Phase 1 / CompletedVicore Pharma ABSwedenTotal Number of Treatment Emergent Adverse Events (AEs) and Serious AEs (SAEs)
From date of signing informed consent until End of Study, assessed up…
2023-06-22
NCT05428150PirfenidonePhase 1 / CompletedExcalibur Pharmaceuticals IncUnited StatesAUC 0-inf
Up to Day 6 of Periods 1 and 2
2022-09-25
NCT05424887GDC-3280Phase 2 / Not yet recruitingShanghai Ark Biopharmaceutical Co., Ltd.ChinaAfter 24 weeks of continuous medication, the absolute decrease in percentage of the predicted FVC from baseline in the…
Up to 24 weeks
2024-07-01
NCT05417776[68Ga]CBP8Phase 2 / RecruitingThe General Hospital Corp.United StatesDegree of uptake of [68Ga]CBP8
24 months
2026-10-01

The table aligns endpoints, sponsors, phases, geographies and readout proxies. It is descriptive, not a head-to-head efficacy comparison. Differences in population, baseline risk, intervention schedule and follow-up can dominate apparent cross-trial differences.

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Protocol design and endpoint interpretation

NCT03733444 is a Phase 3, terminated study with not reported planned participants. Allocation is Randomized, masking is Quadruple, and the intervention model is Parallel Assignment.

The primary endpoint is “Annual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52” over “Baseline up to week 52.” The retrieved endpoint description is: FVC (in mL) is the maximum amount of air exhaled from lungs by a participant after taking their deepest possible breath, as measured by spirometry..

Interpretation should test whether the endpoint captures a clinically meaningful change, whether its time horizon matches the proposed biology, and whether treatment discontinuation or missing data can bias the estimate. The planned enrollment of not reported should be assessed against expected effect size, event frequency, multiplicity, subgroup plans and attrition.

No named control drug was returned in the protocol field set. A placebo comparator can strengthen internal efficacy assessment, while an active comparator may better test clinical differentiation. Single-arm and open-label programs require greater weight on objective outcomes, independent assessment and external benchmarks.

Indexed readouts in the surrounding landscape

0 recent result records were selected as contextual evidence for Idiopathic Pulmonary Fibrosis. These records do not establish direct evidence for NCT03733444 unless the registration number matches.

Indexed evidence status

No directly comparable result record was retrieved for this disease query. This is a monitoring gap, not evidence of absence.

Result fields should be reconciled with the source record before quantitative comparison. Population definitions, analysis sets, dose cohorts, estimands, confidence intervals, rescue therapy and follow-up can materially change the meaning of a numerical endpoint. Clinical Trials MCP supports repeatable refreshes as result records change.

Asset and sponsor context

Ziritaxestat is indexed as Small molecule drug with autotaxin biology and a global stage of Discontinued. The asset profile lists Lakefront Biotherapeutics as an originator or developer.

Lakefront Biotherapeutics is indexed in an unreported country with the website http://www.glpg.com. Galapagos is a clinical-stage biotechnology company, specialized in the discovery and development of small molecule medicines with novel. The record lists 26 development-stage drug assets.

For execution diligence, monitor sponsor ownership, collaborator additions, site expansion, protocol amendments and enrollment revisions. A change in ownership or geography can alter operational confidence as well as the commercial meaning of a future readout.

Development white space

  1. Endpoint white space. Determine whether a more patient-relevant outcome, longer durability window or blinded central assessment would resolve uncertainty left by the current endpoint.
  2. Population white space. Test biomarker-defined, treatment-line or risk-stratified subgroups where effect size and unmet need could be clearer.
  3. Comparator white space. Identify whether the study can support differentiation against the current standard of care rather than only activity against baseline or placebo.
  4. Geographic white space. Assess whether the disclosed footprint supports recruitment, regulatory transferability and commercial generalizability.
  5. Sequencing white space. Clarify whether Ziritaxestat is intended for monotherapy, combination, maintenance, rescue or an earlier treatment line.

White space should be framed as an unanswered development question, not merely an unoccupied mechanism label. A credible program closes a measurable clinical uncertainty with a design that can be executed and interpreted.

Strategic implications and next readouts

For sponsors, the endpoint hierarchy, safety window, enrollment pace and protocol amendment history should all support the same target product profile. Advancement criteria should be set before the readout and tied to clinical effect, uncertainty, tolerability and operational feasibility.

For business-development teams, differentiation may come from a sharper population, stronger comparator, more durable benefit, simpler delivery or clearer sequencing role. For investors, the central risk is evidence quality relative to time and capital, not the phase label in isolation.

Track recruitment status, enrollment changes, primary-completion timing, endpoint revisions, new result records, sponsor ownership and collaborator changes. Re-run the PatSnap MCP workflow when a surrogate becomes a clinical outcome, a single-country study expands, the comparator changes or a new result materially shifts the competitive benchmark.

Source trail and bottom line

Anchor trial: NCT03733444
Protocol source: https://clinicaltrials.gov/study/NCT03733444
MCP sources: Clinical Trials MCP (clinical_trial_fetch and clinical_trial_result_fetch); Drug & Asset MCP (drug_fetch); Company & Deal Intelligence MCP (organization_fetch).
Data snapshot: 16 October 2026.

Ziritaxestat in Idiopathic Pulmonary Fibrosis is best understood through the interaction of protocol design, surrounding readouts, asset context and sponsor execution. The current record makes Annual Rate of Decline in Forced Vital Capacity (FVC) up to Week 52 and 2021-03-30 the leading decision points.

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