Trial Outcomes & Findings for Osimertinib for NSCLC With EGFR Exon 20 Insertion Mutation (NCT NCT03414814)

NCT ID: NCT03414814

Last Updated: 2025-02-11

Results Overview

Investigator-assessed, confirmed objective response by RECIST version 1.1

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

15 participants

Primary outcome timeframe

Until study completion, from date of initiation until the date of first documented progression, unacceptable toxicities or withdrawl, whichever came first. (upto about 29months)

Results posted on

2025-02-11

Participant Flow

Participant milestones

Participant milestones
Measure
Osimertinib
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Overall Study
STARTED
15
Overall Study
COMPLETED
15
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Osimertinib for NSCLC With EGFR Exon 20 Insertion Mutation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Osimertinib
n=15 Participants
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Age, Continuous
61 years
n=5 Participants
Sex: Female, Male
Female
10 Participants
n=5 Participants
Sex: Female, Male
Male
5 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
15 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
Race (NIH/OMB)
White
0 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
South Korea
15 participants
n=5 Participants

PRIMARY outcome

Timeframe: Until study completion, from date of initiation until the date of first documented progression, unacceptable toxicities or withdrawl, whichever came first. (upto about 29months)

Population: The proportion of patients who had complete reponse (CR) and partial reponse (PR) as the best response among 80mg osimertinib administered 15 patients.

Investigator-assessed, confirmed objective response by RECIST version 1.1

Outcome measures

Outcome measures
Measure
Osimertinib
n=15 Participants
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Objective Response Rate
0 Participants

SECONDARY outcome

Timeframe: From date of initiation until the date of first documented progression, unacceptable toxicities or withdrawal, whichever came first. Until study completion. (upto about 29months)

AEs/SAEs as defined by NCI CTCAE version 4.0

Outcome measures

Outcome measures
Measure
Osimertinib
n=15 Participants
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Serious Adverse Events
Azotemia
1 cases
Serious Adverse Events
General weakness
1 cases
Serious Adverse Events
Acute urinary retention
1 cases
Serious Adverse Events
Pneumonia
2 cases
Serious Adverse Events
Colitis
1 cases
Serious Adverse Events
Hypercalcemia
1 cases
Serious Adverse Events
Femur fracture
1 cases

SECONDARY outcome

Timeframe: From date of initiation until the date of first documented progression, unacceptable toxicities or withdrawl, whichever came first. Until study completion. (upto about 29months)

Population: The PFS rate at the time of data cutoff (10 June 2020) for 80mg osimertinib administered 15 patients

PFS as defined by RECIST version 1.1

Outcome measures

Outcome measures
Measure
Osimertinib
n=15 Participants
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Progression-free Survival
3.8 months
Interval 1.7 to 5.5

SECONDARY outcome

Timeframe: From the first date of IP administration to the date of death. (upto about 29months)

OS as defined by RECIST version 1.1. The time from the first date of IP administration to the date of death.

Outcome measures

Outcome measures
Measure
Osimertinib
n=15 Participants
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Overall Survival
6.5 months
Interval 3.9 to 29.0

Adverse Events

Osimertinib

Serious events: 8 serious events
Other events: 15 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Osimertinib
n=15 participants at risk
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Gastrointestinal disorders
Colitis
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Renal and urinary disorders
Azotemia
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Blood and lymphatic system disorders
Hyperglycemia
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
General weakness
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Renal and urinary disorders
Acute urinary retention
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Respiratory, thoracic and mediastinal disorders
Pneumonia
13.3%
2/15 • Number of events 2 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Musculoskeletal and connective tissue disorders
Femur fracture
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)

Other adverse events

Other adverse events
Measure
Osimertinib
n=15 participants at risk
Osimertinib at 80mg dose will be administered orally once daily. Osimertinib 80 MG \[Tagrisso\]: Osimertinib 80mg once daily until disease progression
Eye disorders
Dry eye
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Blood and lymphatic system disorders
Anaemia
26.7%
4/15 • Number of events 4 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Blood and lymphatic system disorders
Thrombocytopenia
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Colitis
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Constipation
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Diarrhoea
13.3%
2/15 • Number of events 2 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Dyspepsia
20.0%
3/15 • Number of events 3 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Dysphagia
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Gastrooesophageal reflux disease
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Nausea
20.0%
3/15 • Number of events 3 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
Gastrointestinal disorders
Vomiting
20.0%
3/15 • Number of events 3 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Asthenia
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Face oedema
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Gait disturbance
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Localised oedema
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Non-cardiac chest pain
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Oedema peripheral
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Pain
6.7%
1/15 • Number of events 1 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)
General disorders
Pyrexia
20.0%
3/15 • Number of events 3 • from the day of first IP administration to 30 days after the last IP administration (till PD or unacceptable toxicity), (upto about 29months)

Additional Information

Ji-Sook Kim

Seoul National University Hospital

Phone: 821025866440

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place