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RET-fusion Non Small Cell Lung CancerNCT04697446

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

An observational study of RET-fusion Non Small Cell Lung Cancer and Lung Neoplasm, run by Blueprint Medicines Corporation at 3 sites in 3 countries.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 years and older
How many people
279 participants
Where
3 sitesin 3 countries
Study dates
1 Dec 2020to 31 Oct 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

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

Who may be able to join

  • 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
Show all 11Show fewer
  • 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

Who cannot join

  • 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

Trial locations and contacts

3 sites in 3 countries.

3 sites in 3 countries

United States1 site
  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065

Other trials in United States

France1 site
  • University Hospital Center of Toulouse - Larrey Hospital

    Toulouse, 31300

Other trials in France

Switzerland1 site
  • Lucerne Cantonal Hospital

    Lucerne, 6000

Other trials in Switzerland

About this study

Official title: An External Control, Observational, Retrospective Study Assessing the Effect of Pralsetinib Compared With Best Available Therapy for Patients With RET-Fusion Positive Advanced Non-Small Cell Lung Cancer

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.

Medical subject headings
Lung Neoplasms, Carcinoma, Non-Small-Cell Lung, Respiratory Tract Neoplasms, Thoracic Neoplasms, Neoplasms by Site, Neoplasms, Lung Diseases, Respiratory Tract Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04697446
Study groupRoleWhat they receive
Patients from the BLU-667-1101 (ARROW) studyPatients with Non-Small Cell Lung Cancer (NSCLC) who received treatment with pralsetinib as part of the BLU-667-1101 (ARROW) study
External Control GroupPatients with Non-Small Cell Lung Cancer (NSCLC) that received best available therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  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)

    Measured: Up to 12 years

Secondary outcomes (8)
  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

    Measured: 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

    Measured: 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

    Measured: 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

    Measured: 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

    Measured: 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

    Measured: 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

    Measured: 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

    Measured: Up to 12 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jan 2021
  2. Study start1 Dec 2020
  3. Primary completion31 Oct 2021 (estimated)
  4. Study completion31 Oct 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
279 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04697446
Sponsor's protocol ID
BLU-667-2404
Status last verified
Aug 2021
First submitted
16 Dec 2020
Last updated
10 Aug 2021
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of RET-fusion Non Small Cell Lung Cancer and Lung Neoplasm, run by Blueprint Medicines Corporation at 3 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 10 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States, France, Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Comparative evaluation of real-world response rate (rwORR) between patients receiving best available therapy versus pralsetinib (time frame: Up to 12 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Aug 2021.

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