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Osimertinib

Phase 1

Advanced Solid Tumors Cancer | Small molecule | Oncology |AbbVie Inc.|Last Updated: Aug 14, 2025

Target and mechanism

Molecular targetEGFR
Target classInhibitor
ModalitySmall molecule

Also known as Osimertinib (Osi)

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment237

FDA Designations

No designations recorded

Clinical trial landscape

Osimertinib · 1 trial · 1 indication

Phase 1 1
NCT02099058A Study Evaluating the Safety, Pharmacokinetics (PK), and Preliminary Efficacy of ABBV-399 in Participants With Advanced Solid TumorsAdvanced Solid Tumors Cancer
ACTIVE NOT_RECRUITING237 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study Evaluating the Safety, Pharmacokinetics (PK), and Preliminary Efficacy of ABBV-399 in Participants With Advanced Solid Tumors
Advanced Solid Tumors CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Adverse Events
Up to 24 Months

An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment.

Recommended Phase 2 Dose (RPTD) of ABBV-399 when Administered as Monotherapy and in Combination with Osimertinib, Erlotinib or Nivolumab
Up to 24 Months

The RPTD of ABBV-399 when administered as monotherapy and in combination with osimertinib, erlotinib or nivolumab will be determined during the dose escalation phase of the study. RPTD will be determined using available safety and pharmacokinetics data.

Area under the curve (AUC) from time zero to the last measurable concentration AUC (0-t)
Up to 24 months

AUC (0-t) = Area under the serum concentration versus time curve from time zero (pre-dose) to the time of the last measurable concentration.

Maximum observed plasma concentration (Cmax)
Up to 24 months

Maximum observed plasma concentration (Cmax).

Time to Cmax (Tmax)
Up to 24 months

Time to Cmax (Tmax).

Terminal elimination half life
Up to 24 months

Terminal elimination half life.

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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Monotherapy Telisotuzumab vedotin (21-day dosing cycles)EXPERIMENTALTelisotuzumab vedotin will be administered at escalating dose levels in 21-day dosing cycles. Additional subjects will be enrolled in an expansion cohort that will further evaluate Telisotuzumab vedotin.
Monotherapy Telisotuzumab vedotin(28-day dosing cycles)EXPERIMENTALTelisotuzumab vedotin will be administered at escalating dose levels in 28-day dosing cycles. Additional subjects will be enrolled in an expansion cohort that will further evaluate Telisotuzumab vedotin.
Monotherapy Expansion CohortEXPERIMENTALTelisotuzumab vedotin will be administered every 14 days on a 28-day dosing cycle.
Arm A (Telisotuzumab vedotin plus Erlotinib)EXPERIMENTALTelisotuzumab vedotin to be evaluated with Erlotinib.
Arm D (Telisotuzumab vedotin plus Nivolumab)EXPERIMENTALTelisotuzumab vedotin to be evaluated with Nivolumab.
Arm E (Telisotuzumab vedotin plus Osimertinib)EXPERIMENTALTelisotuzumab vedotin to be evaluated with Osimertinib.

Interventions

NameTypeDescription
OsimertinibDRUGIt is administered orally everyday.
NivolumabDRUGIt is an intravenous infusion administered every 14 days.
Telisotuzumab vedotinDRUGIt is administered by infusion in 21-day dosing cycles.
ErlotinibDRUGIt is administered orally everyday.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites36

Inclusion Criteria: * Participant must have advanced Non-Small Cell Lung Cancer (NSCLC) that is not amenable to surgical resection or other approved therapeutic options that have demonstrated clinical benefit. * Participant has an Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to...

Countries:United StatesBelgiumFinlandFranceItalyJapanNetherlandsSouth KoreaTaiwan
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Recent Changes (Last 90 Days)

LOWMay 26, 2026NCT02099058primaryCompletionDate: changed
LOWMay 24, 2026NCT02099058studyFirstPostDate: changed

Frequently asked questions about Osimertinib

What is Osimertinib used for?

Osimertinib is an investigational small molecule being studied for the treatment of advanced solid tumors cancer. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities. The drug is being evaluated in a clinical trial enrolling 237 participants across multiple countries.

What does Osimertinib target?

Osimertinib targets the epidermal growth factor receptor (EGFR) and acts as an inhibitor of this target. By inhibiting EGFR, the drug is designed to interfere with signaling pathways that can drive tumor growth in advanced solid tumors. This mechanism is being investigated in early-stage clinical trials.

Who makes Osimertinib?

Osimertinib is being developed by AbbVie Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol ABBV. The company is conducting clinical research to evaluate the safety and efficacy of this investigational drug in patients with advanced solid tumors.

What phase is Osimertinib in?

Osimertinib is currently in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA or other regulatory agencies. The ongoing Phase 1 trial is active but not recruiting participants, and the drug remains in early-stage clinical testing.

What clinical trials is Osimertinib in?

Osimertinib is being evaluated in a single Phase 1 clinical trial registered as NCT02099058. This study is assessing the safety, pharmacokinetics, and preliminary efficacy of the drug in participants with advanced solid tumors. The trial has enrolled 237 participants and is active but not recruiting.

Is Osimertinib the same as Osi?

Yes, Osimertinib is also known as Osi. This alternative name is used in clinical and research settings to refer to the same investigational drug. Patients and healthcare professionals may encounter either name when reviewing information about this Phase 1 oncology candidate.