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Non Small Cell Lung CancerPhase 1/2PILNCT03257722

Pembrolizumab + Idelalisib for Lung Cancer Study

A Phase 1/2 study testing Pembrolizumab and Idelalisib in people with Non Small Cell Lung Cancer and Metastasis, run by Asha Nayak at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a phase 1b/2 study to determine the safety and effectiveness of the combination of pembrolizumab and idelalisib in NSCLC patients whose disease has stopped responding to immune therapy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Non Small Cell Lung Cancer, Metastasis, Recurrence
What is being tested?
Pembrolizumab and Idelalisib
Could I receive a placebo?
No, everyone receives an active treatment
How many people
4 participants
Where
1 siteUnited States
Study dates
26 Sep 2017to 25 Aug 2021
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Have at least one measurable lesion
  • Have an ECOG Performance Status of 1 or less
  • Demonstrate adequate organ function as defined in the protocol.
  • Female subjects of childbearing potential must have a negative pregnancy test before starting treatment; they must also be willing to use two methods of birth control or abstain from heterosexual activity for the duration of the study.
  • Male subjects must agree to use an adequate method of contraception starting with the first dose of study therapy through the duration of the study.

Who cannot join

  • Is currently receiving study drug in another trial; or has participated in an investigational drug study within 3 weeks of the first dose of treatment.
  • Is within 3 weeks of most recent chemotherapy.
  • Has a history of hypersensitivity to pembrolizumab or idelalisib, or any of their excipients.
  • Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis. Subjects with previously treated, stable, brain metastases may participate; carcinomatous meningitis is excluded regardless of clinical stability.
  • Has known history of non-infectious pneumonitis that required steroid use or has current pneumonitis.
  • Has a known history of active TB (Bacillus Tuberculosis)
Show all 9Show fewer
  • Has active autoimmune disease that has required treatment; known history of Human Immunodeficiency Virus (HIV); known active Hepatitis B or Hepatitis C.
  • Has an active infection requiring systemic therapy.
  • Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Georgia Cancer Center at Augusta University

    Augusta, Georgia, 30912

Other trials in United States

About this study

Official title: A Phase Ib /II Trial of Pembrolizumab and Idelalisib in Patients With Non-small Cell Lung Cancer (NSCLC) Who Have Failed Immune Checkpoint Inhibitor

This is a phase 1b/2 study to determine the safety and effectiveness of the combination of pembrolizumab and idelalisib in NSCLC patients whose disease has stopped responding to immune therapy. This study is being done to see if adding another immune modulator (idelalisib) to standard pembrolizumab will increase response rates, compared to the response seen with pembrolizumab alone.

Read the detailed description

This is a phase 1b/2 study to determine the safety and effectiveness of the combination of pembrolizumab and idelalisib in NSCLC patients whose disease has stopped responding to immune therapy. Pembrolizumab is an anti-PD-1 immunotherapy that is given intravenously and is approved for treatment of malignant NSCLC. Idelalisib is the first-in-class oral PI3K-δ inhibitor that is approved for treatment of certain forms of leukemia and lymphoma.

Immune checkpoint inhibitors (such as anti-PD-1) are effective in treating NSCLC as a single agent, but overall response isn't optimal; overall response rates (ORR) are only ~20% on average. The goal of this study is to see whether combining standard therapy with additional immune modulators will increase response rates, compared to the response seen with pembrolizumab monotherapy.

Being tested
Pembrolizumab, Idelalisib
Keywords
Non Small Cell Lung Cancer, Metastasis, Recurrence, Immunotherapy
Medical subject headings
Carcinoma, Non-Small-Cell Lung, Neoplasm Metastasis, Recurrence

What participants receive

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

  • PembrolizumabDrug

    Also called Keytruda, MK-3475

    Anti PD-1 immunotherapeutic agent, which blocks a protective mechanism on cancer cells to allow the immune system to destroy cancer cells. Administered intravenously (IV).

  • IdelalisibDrug

    Also called Zydelig, GS-1101

    Phosphatidylinositol 3-kinase (PI3K) inhibitor which promotes anti-tumor immune response. Administered orally (PO).

Study groups in NCT03257722
Study groupRoleWhat they receive
Phase 1 Dose EscalationExperimentalSequential cohorts of 3 patients will receive pembrolizumab 200 mg intravenously every 3 weeks, in addition to the oral drug, idelalisib, every day for 21 days. The first group of 3 will receive idelalisib 50 mg twice daily; the next cohort will receive idelalisib 100 mg twice daily; the last cohort will receive idelalisib 150 mg twice daily.
Receives: Drug: Pembrolizumab; Drug: Idelalisib
Phase 2 EfficacyExperimentalAll patients in the efficacy assessment phase will be treated with pembrolizumab (200 mg intravenously every 3 weeks) in combination with oral idelalisib (dose not exceeding 150 mg twice daily, per the phase 1 assessment) for 18 weeks before maintenance with pembrolizumab 200 mg intravenously every 3 weeks for up to 2 years, until disease progression or unacceptable toxicity.
Receives: Drug: Pembrolizumab; Drug: Idelalisib

What is being measured

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

  1. Number of Participants With Dose-Limiting Toxicity (DLT) Events as Assessed by CTCAE v4.03

    Modified 3+3 dose escalation design will be used to determine whether the addition of idelalisib to standard pembrolizumab is safe and tolerable in checkpoint inhibitor refractory NSCLC patients. An initial cohort of 3 patients will receive 50 mg twice daily idelalisib with standard pembrolizumab. If none of the 3 patients develop a DLT, another 3 patients will be enrolled. Dose will be escalated or de-escalated based on the occurrence of DLTs. All events will be assessed for possible, probable, or definite relation to idelalisib.

    Measured: First 9 weeks at each dose level

Secondary outcomes (2)
  1. Dose-Finding Assessment for Optimum Dose of Idelalisib in Combination With Pembrolizumab

    Determine the phase 2 recommended dose (P2RD) of idelalisib, in combination with pembrolizumab, in patients with checkpoint inhibitor refractory NSCLC. If no more than 1/6 patients in initial cohort develop a DLT, the patients will be tested for T-regulatory cell function suppression (80% suppression in 80% of patients). If dose is escalated or de-escalated, testing will continue to assess for optimal T-reg suppression. The dose at which the tolerability and suppression criteria are both met will be declared the P2RD and the study will proceed to phase 2.

    Measured: 18-27 weeks

  2. Overall Response Rates (ORR) to Combination Therapy

    Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

    Measured: 18 weeks - 2 years

Timeline

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

  1. First posted22 Aug 2017
  2. Study start26 Sep 2017
  3. Primary completion15 Aug 2020
  4. Study completion25 Aug 2021

Why it stopped: The study was terminated due to poor accrual.

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Model description
This is an open labeled, single arm, interventional study combining standard pembrolizumab (MK-3475, trade name: Keytruda) with investigational agent, idelalisib (trade name: Zydelig) in non-small cell lung cancer (NSCLC). The study will enroll patients in two phases: a dose finding/tolerability assessment phase and an efficacy assessment phase. The Phase 1b (modified 3+3 dose escalation) assessment will determine the safe dose of idelalisib in combination with pembrolizumab that down-regulates the activity of T-regulatory function (Treg). The Phase 2 efficacy assessment will enroll patients to detect whether idelalisib added to pembrolizumab at the phase 2 recommended dose (P2RD) will result in further objective response.
Masking
None (open label)
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03257722
Sponsor's protocol ID
GCC-16053
Acronym
PIL
Status last verified
Jan 2024
First submitted
16 Aug 2017
Last updated
28 Feb 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Pembrolizumab and Idelalisib in people with Non Small Cell Lung Cancer and Metastasis, run by Asha Nayak at 1 site in United States.

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 5 inclusion and 9 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: stopped early, as of the sponsor's last update on 28 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Feb 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Number of Participants With Dose-Limiting Toxicity (DLT) Events as Assessed by CTCAE v4.03 (time frame: First 9 weeks at each dose level). 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 28 Feb 2024.

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