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Status unknownNCT04697446Updated Aug 10, 2021

External Control, Observational, Retrospective Study Comparing Pralsetinib to Best Available Therapy in Patients With RET-Fusion Positive NSCLC

An observational study in RET-fusion Non Small Cell Lung Cancer, Lung Neoplasm and Carcinoma, Non-Small-Cell Lung, sponsored by Blueprint Medicines Corporation. Status unknown at 3 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-08-10.

Sponsored by Blueprint Medicines Corporation · Observational

The sponsor has not verified this record recently (last verified Aug 2021), so the status shown — last known as Enrolling by invitation — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
279
Ages
18 Years and older
Sex
All
01

Study summary

This is an external control, observational, retrospective study designed to compare clinical outcomes for pralsetinib compared with best available therapy for patients with RET-fusion positive advanced NSCLC.

02

Conditions studied

  • RET-fusion Non Small Cell Lung Cancer
  • Lung Neoplasm
  • Carcinoma, Non-Small-Cell Lung
  • Respiratory Tract Neoplasms
  • Thoracic Neoplasms
  • Neoplasms by Site
  • Neoplasms
  • Lung Diseases
  • Respiratory Tract Diseases
  • Carcinoma, Bronchogenic
  • Bronchial Diseases
  • Head and Neck Neoplasms
  • Carcinoma
  • Neoplasms by Histologic Type
  • Neoplasms, Germ Cell and Embryonal
  • Neoplasms, Nerve Tissue
  • Metastatic Non Small Cell Lung Cancer
03

In context

Carcinoma

6,745 studies on the registry are indexed under Carcinoma; 1,163 are open to participants now.

This study's planned enrollment of 279 is above the median of 149 across 1,175 observational studies indexed under Carcinoma.

Browse Carcinoma studies →

Lead sponsor

Blueprint Medicines Corporation is the lead sponsor of 32 studies on the registry; 6 are open to participants now.

Of its 14 completed or terminated interventional studies of FDA-regulated products, 3 (21%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

This study will include patients with locally advanced or metastatic RET-fusion positive non-small cell lung cancer (NSCLC)

Inclusion criteria

  • Must have a diagnosis of locally advanced (non-resectable) or metastatic RET-fusion positive NSCLC
  • Must have received at least one line of systemic therapy for locally advanced (non-resectable) or metastatic RET-fusion positive NSCLC, which may include regimens containing:

    • Chemotherapy, e.g., regimens containing platinum doublet-based therapy (carboplatin, cisplatin)
    • Chemotherapy in combination with other drugs will be assessed, e.g., in combination with pemetrexed, immune checkpoint inhibitors (pembrolizumab), bevacizumab
    • Ramucirumab in combination with docetaxel
    • Immune checkpoint inhibitors, e.g., pembrolizumab, nivolumab, and atezolizumab
    • MKIs, e.g., cabozantinib, alectinib, vandetanib, sunitinib, and nintedanib
  • Must be aged ≥18 years of age at the initiation of first systemic line of therapy
  • Must have availabile of performance status (e.g., Eastern Cooperative Oncology Group [ECOG] score or Karnofsky score)
  • Must have an index date at least 3 months prior to the start of data collection (in order to include patients with at least 3 months of follow-up after index date), unless date of death occurred less than three months from index date
  • Must have an approved waiver of informed consent or signed informed consent for participation in the retrospective chart review study, as applicable

Exclusion criteria

Exclusion Criteria:

  • Known primary driver alteration other than RET (e.g., targetable mutation in EGFR, ALK, ROS1, or BRAF)
  • History of other malignancy, other than non-melanoma skin cancer, within 1 year prior to initiation of first systemic therapy
  • Received pralsetinib as the first line of systemic therapy for RET-fusion positive NSCLC, or prior to initiation of first systemic therapy
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
279 participants (estimated)
Patient registry
No

Groups and cohorts

  • Patients from the BLU-667-1101 (ARROW) study

    Patients with Non-Small Cell Lung Cancer (NSCLC) who received treatment with pralsetinib as part of the BLU-667-1101 (ARROW) study

  • External Control Group

    Patients with Non-Small Cell Lung Cancer (NSCLC) that received best available therapy

06

What researchers measure

Primary outcomes

  1. Comparative evaluation of real-world response rate (rwORR) between patients receiving best available therapy versus pralsetinib

    rwORR, defined as the proportion of patients with clinician-assess complete response (CR) or partial response (PR)

    Time frame: Up to 12 years

Secondary outcomes

  1. Comparative evaluation between patients receiving best available therapy versus pralsetinib of Overall survival (OS)

    OS, defined as time from initiation of a given line of therapy to death from any cause

    Time frame: Up to 12 years

  2. Comparative evaluation between patients receiving best available therapy versus pralsetinib of Real-world duration of response (rwDOR)

    rwDOR, defined as the duration of time from the first documented clinician-assessed response to the first documented clinician-assessed progressive disease or death due to any cause within 30 days of the last radiological exam, for each line of treatment

    Time frame: Up to 12 years

  3. Comparative evaluation between patients receiving best available therapy versus pralsetinib of Real-world disease control rate (rwDCR)

    rwDCR, defined as proportion of patients with clinician-assessed complete response, partial response, or stable disease

    Time frame: Up to 12 years

  4. Comparative evaluation between patients receiving best available therapy versus pralsetinib of Real-world clinical benefit rate (rwCBR)

    rwCBR, defined as proportion of patients who had documented clinician-assessed complete response or partial response, or stable disease lasting at least 16 weeks

    Time frame: Up to 12 years

  5. Comparative evaluation between patients receiving best available therapy versus pralsetinib of Real-world progression-free survival (rwPFS)

    rwPFS, defined as time from initiation of line of therapy to clinician-assessed disease progression or death from any cause, whichever occurs first

    Time frame: Up to 12 years

  6. Comparative evaluation between patients receiving best available therapy versus pralsetinib of Duration of treatment (DOT)

    DOT, defined as time from initiation of line of systemic treatment to discontinuation of same line of treatment for any reason

    Time frame: Up to 12 years

  7. Comparative evaluation between patients receiving best available therapy versus pralsetinib of Time to next treatment line (TtNTL)

    TtNTL, defined as the time from initiation of line of systemic treatment to the initiation of the next line of treatment

    Time frame: Up to 12 years

  8. To characterize the safety profile and conduct comparative evaluation of safety between patients receiving best available care vs. pralsetinib

    Adverse events (AEs) that result in treatment modification or discontinuation, hospitalization, or death according to evaluation of responsible physician

    Time frame: Up to 12 years

07

Study locations

3 sites
  • Memorial Sloan Kettering Cancer Center
    New York, New York 10065, United States
  • University Hospital Center of Toulouse - Larrey Hospital
    Toulouse, 31300, France
  • Lucerne Cantonal Hospital
    Lucerne, 6000, Switzerland
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 10, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04697446
Lead sponsor
Blueprint Medicines Corporation
Collaborators
Analysis Group, Inc.
Responsible party
Sponsor
First posted
Jan 6, 2021
Start date
Dec 1, 2020
Primary completion
Oct 31, 2021 (estimated)
Completion
Oct 31, 2021 (estimated)
Last update
Aug 10, 2021

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.

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