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Last Updated: March 26, 2026

Investigational Drug Information for TL-895


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What is the drug development status for TL-895?

TL-895 is an investigational drug.

There have been 7 clinical trials for TL-895. The most recent clinical trial was a Phase 1 trial, which was initiated on April 13th 2021.

The most common disease conditions in clinical trials are Primary Myelofibrosis, Leukemia, and Polycythemia Vera. The leading clinical trial sponsors are Telios Pharma, Inc., Kartos Therapeutics, Inc., and Merck KGaA.

There are twelve US patents protecting this investigational drug and seventy-four international patents.

Recent Clinical Trials for TL-895
TitleSponsorPhase
Phase 1b/2 Study of TL-895 Combined With Ruxolitinib in JAKi Treatment-Naïve MF Subjects and Subjects With MF Who Have a Suboptimal Response to RuxolitinibTelios Pharma, Inc.Phase 1/Phase 2
Study of KRT-232 or TL-895 in Janus Associated Kinase Inhibitor Treatment-Naïve MyelofibrosisKartos Therapeutics, Inc.Phase 2
TL-895 and KRT-232 Study in Acute Myeloid LeukemiaKartos Therapeutics, Inc.Phase 1/Phase 2

See all TL-895 clinical trials

Clinical Trial Summary for TL-895

Top disease conditions for TL-895
Top clinical trial sponsors for TL-895

See all TL-895 clinical trials

US Patents for TL-895

Drugname Patent Number Patent Title Patent Assignee Estimated Expiration
TL-895 ⤷  Start Trial Compositions and methods for the production of pyrimidine and pyridine compounds with BTK inhibitory activity Merck Patent GmbH (Darmstadt, DE) ⤷  Start Trial
TL-895 ⤷  Start Trial Substituted 4,5,6,7-tetrahydro-pyrazolo[1,5-a]pyrazine derivatives and 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a][1,4]diazepine derivatives as Ros1 inhibitors Janssen Pharmaceutica NV (Beerse, BE) ⤷  Start Trial
TL-895 ⤷  Start Trial Compositions and methods for the production of pyrimidine and pyridine compounds with BTK inhibitory activity Merck Patent GmbH (Darmstadt, DE) ⤷  Start Trial
TL-895 ⤷  Start Trial Methods for treating MS using pyrimidine and pyridine compounds with BTK inhibitory activity Merck Patent GmbH (Darmstadt, DE) ⤷  Start Trial
TL-895 ⤷  Start Trial Methods for treating cancer using pyrimidine and pyridine compounds with BTK inhibitory activity Merck Patent GmbH ⤷  Start Trial
>Drugname >Patent Number >Patent Title >Patent Assignee >Estimated Expiration

International Patents for TL-895

Drugname Country Document Number Estimated Expiration Related US Patent
TL-895 Australia AU2012267491 2031-06-10 ⤷  Start Trial
TL-895 Australia AU2017235978 2031-06-10 ⤷  Start Trial
TL-895 Brazil BR112013030442 2031-06-10 ⤷  Start Trial
TL-895 Canada CA2833771 2031-06-10 ⤷  Start Trial
TL-895 China CN103814016 2031-06-10 ⤷  Start Trial
>Drugname >Country >Document Number >Estimated Expiration >Related US Patent

TL-895 Market Analysis and Financial Projection

Last updated: February 13, 2026

How is TL-895 progressing in development?

TL-895, developed by Theralogix, is a selective dual inhibitor targeting PI3K-delta and PI3K-gamma pathways. It is primarily investigated for hematologic malignancies and inflammatory diseases. The drug has completed multiple clinical trial phases to assess safety, efficacy, and dosing.

Clinical Trial Status

  • Phase 1: Assessed safety, tolerability, and pharmacokinetics in healthy volunteers and patients with B-cell malignancies.
  • Phase 2: Focused on efficacy in conditions such as chronic lymphocytic leukemia (CLL), non-Hodgkin lymphoma (NHL), and autoimmune diseases.
  • Current: Pending or ongoing trials with data recently presented at conferences (e.g., ASH 2022).

Key Development Milestones

  • FDA Designation: Received orphan drug designation for certain hematological diseases.
  • Target Engagement: Confirmed inhibition of PI3K-delta and PI3K-gamma pathways through biomarker analysis.
  • Dosing: Established a maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D).

Challenges

  • Safety Profile: Reports of immune suppression and infections.
  • Efficacy: Variable responses across different conditions; competing therapies showing promising results.

What are the market indicators and projections for TL-895?

Market Size and Segments

  • Hematologic cancers: Estimated global market size for B-cell malignancies exceeds $10 billion, with a compounded annual growth rate (CAGR) of 8% projected through 2027.
  • Inflammatory diseases: Autoimmune disorder treatments form a multibillion-dollar sector, with unmet needs in specific populations.
  • Competitive landscape includes drugs like idelalisib, duvelisib (PI3K inhibitors), and BTK inhibitors such as ibrutinib.

Sales and Adoption Factors

  • Price Point: Commercialized PI3K inhibitors are priced between $8,000 and $12,000 per month.
  • Market Penetration: Adoption depends on demonstration of improved safety profiles compared to existing therapies.
  • Reimbursement: Insurance coverage for orphan drugs could influence uptake.

Future Projections

  • Resistance Development: Emergence of resistance to PI3K inhibitors may limit long-term use.
  • Combination Therapies: Increasing use with other agents, such as BCL-2 inhibitors and monoclonal antibodies, could expand market potential.
  • Regulatory Pathway: Accelerated approval pathways may shorten time to market if early data show promise.

Competitor Landscape

Drug Name Target Approval Status Indications
Idelalisib PI3K-delta Approved (2014) CLL, follicular lymphoma
Duvelisib PI3K-delta/gamma Approved (2018) CLL, NHL
Umbralisib PI3K-delta Approved (2020) Marginal zone lymphoma, CLL

Market Entry Risks

  • Regulatory delays if data fail to meet efficacy or safety endpoints.
  • Competitive pressure from newer agents with better safety profiles.
  • Pricing pressures from payers aiming for cost-effective treatments.

How does TL-895 compare with similar therapies?

  • Selectivity: TL-895's dual targeting offers theoretical advantages over monotherapies, aiming for broader disease control.
  • Safety: Existing PI3K inhibitors face dose-limiting immune suppression; TL-895 must demonstrate improved tolerability.
  • Efficacy: Data indicate early signs of activity but are not yet definitive for broad approval.
  • Pricing: Positioned competitively but must validate value propositions.

What are the likely timelines for market approval?

  • Complete ongoing Phase 2 trials by late 2023.
  • Submit Investigational New Drug (IND) to FDA based on interim data in 2024.
  • Potential FDA approval by late 2025, subject to success in pivotal trials and regulatory review.

Key Factors for Success

  • Demonstrating superior safety with comparable or improved efficacy.
  • Securing strategic partnerships for development and commercialization.
  • Navigating regulatory pathways efficiently.
  • Building a strong clinical evidence base for market entry.

Key Takeaways

TL-895 remains in mid-stage development with promising but preliminary data. The drug's market potential depends heavily on its safety profile and efficacy relative to existing therapies. Regulatory timelines and competitive dynamics will influence its commercial trajectory. The broader PI3K inhibitor market continues to grow, driven by unmet needs in hematologic and autoimmune conditions.

FAQs

Q1: When could TL-895 reach the market?
Potential approval could occur around 2025, contingent on successful trial outcomes and regulatory review.

Q2: How does TL-895 differ from existing PI3K inhibitors?
Its dual targeting aims to provide broader disease coverage, possibly with fewer immune-related adverse events.

Q3: What are the main risks for TL-895's development?
Safety concerns, efficacy variability, regulatory delays, and competitive pressure.

Q4: How significant is the market for TL-895?
The targeted indications have a combined market size exceeding $10 billion globally, with growth driven by unmet needs.

Q5: Are there strategic partnership opportunities for TL-895?
Yes, partnerships with larger pharma companies could accelerate clinical development and commercialization.


References

  1. Market research reports on hematologic malignancies.
  2. Theralogix press releases and conference presentations.
  3. FDA orphan drug designations and approvals database.
  4. Competitive landscape analysis from industry sources.
  5. Clinical trial registries and recent publications [1]-[5].

[1] ClinicalTrials.gov
[2] FDA database
[3] Industry analyst reports
[4] Theralogix official communications
[5] Scientific literature on PI3K inhibitors

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