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CompletedNCT02793856Updated Jan 12, 2021Results posted

PD-1 Knockout Engineered T Cells for Metastatic Non-small Cell Lung Cancer

A Phase 1 interventional study of Cyclophosphamide and PD-1 Knockout T Cells in Metastatic Non-small Cell Lung Cancer, sponsored by Sichuan University. Completed at 1 site in China. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2021-01-12.

Sponsored by Sichuan University · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Non-randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This study will evaluate the safety of PD-1 knockout engineered T cells in treating metastatic non-small cell lung cancer. Blood samples will also be collected for research purposes.

Read the detailed description

This is a dose-escalation study of ex-vivo knocked-out, expanded, and selected PD-1 knockout-T cells from autologous origin. Patients are assigned to 1 of 3 treatment groups to determine the maximal tolerant dose. After the lower number of cycles are considered tolerant, an arm of the next higher number of cycles will be open to next patients. Biomarkers and immunological markers are collected and analyzed as well.

02

Conditions studied

  • Metastatic Non-small Cell Lung Cancer

Keywords

  • lung cancer
  • immune checkpoint
  • PD-1
  • CRISPR
  • autologous cell infusion
03

In context

Lung Neoplasms

7,243 studies on the registry are indexed under Lung Neoplasms; 1,557 are open to participants now.

This study's enrollment of 12 is below the median of 60 across 5,295 interventional studies indexed under Lung Neoplasms.

Browse Lung Neoplasms studies →

Lead sponsor

Sichuan University is the lead sponsor of 106 studies on the registry; 65 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Pathologically verified stage IV non-small cell lung cancer with measurable lesions (On CT: longest diameter of tumoral lesion >=10 mm, shorted diameter of lymph node >=15 mm; measurable lesions should not have been irradiated)
  • Progressed after all standard treatment
  • Performance score: 0-1
  • Expected life span: >= 6 months
  • Toxicities from prior treatment has resolved. Washout period is 4 weeks for chemotherapy, and 2 weeks for targeted therapy
  • Major organs function normally
  • Women at pregnant ages should be under contraception
  • Willing and able to provide informed consent

Exclusion criteria

Exclusion Criteria:

  • Pathology is mixed type
  • Emergent treatment of tumor emergency is needed
  • Poor vasculature
  • Coagulopathy, or ongoing thrombolytics and/or anticoagulation
  • Blood-borne infectious disease, e.g. hepatitis B
  • History of mandatory custody because of psychosis or other psychological disease inappropriate for treatment deemed by treating physician
  • With other immune diseases, or chronic use of immunosuppressants or steroids
  • Compliance cannot be expected
  • Other conditions requiring exclusion deemed by physician
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    A - Two cycles

    Peripheral blood lymphocytes will be collected and Programmed cell death protein 1(PDCD1) gene will be knocked out by CRISPR Cas9 in the laboratory (PD-1 Knockout T cells). The lymphocytes will be selected and expanded ex vivo and infused back into patients. Cyclophosphamide at 20mg/kg single dose will be administered 3 days i.v. before cell infusion. A total of 1 x 10\^7/kg PD-1 Knockout T cells will be infused in one cycle. Each cycle is divided into three administrations, with 20% infused in the first administration, 30% in the second, and the remaining 50% in the third. Patients will receive a total of two cycles of treatment.

    Drug: Cyclophosphamide · Other: PD-1 Knockout T Cells

  • Experimental
    B- Two cycles

    Peripheral blood lymphocytes will be collected and Programmed cell death protein 1(PDCD1) gene will be knocked out by CRISPR Cas9 in the laboratory (PD-1 Knockout T cells). The lymphocytes will be selected and expanded ex vivo and infused back into patients. Cyclophosphamide at 20mg/kg single dose will be administered 3 days i.v. before cell infusion. A total of 2 x 10\^7/kg PD-1 Knockout T cells will be infused in one cycle. Each cycle is divided into three administrations, with 20% infused in the first administration, 30% in the second, and the remaining 50% in the third. Patients will receive a total of two cycles of treatment.

    Drug: Cyclophosphamide · Other: PD-1 Knockout T Cells

  • Experimental
    C- Two cycles

    Peripheral blood lymphocytes will be collected and Programmed cell death protein 1(PDCD1) gene will be knocked out by CRISPR Cas9 in the laboratory (PD-1 Knockout T cells). The lymphocytes will be selected and expanded ex vivo and infused back into patients. Cyclophosphamide at 20mg/kg single dose will be administered 3 days i.v. before cell infusion. A total of 4 x 10\^7/kg PD-1 Knockout T cells will be infused in one cycle. Each cycle is divided into three administrations, with 20% infused in the first administration, 30% in the second, and the remaining 50% in the third. Patients will receive a total of two cycles of treatment.

    Drug: Cyclophosphamide · Other: PD-1 Knockout T Cells

Interventions

  • DrugCyclophosphamide

    To deplete Tregs before collecting peripheral blood

    Also known as: Cytoxan

  • OtherPD-1 Knockout T Cells

    Autologous lymphocytes are collected and PDCD1 gene is knocked out in the laboratory. Cells are selected and expanded ex vivo. Cells are infused back to the patients for treatment

06

What researchers measure

Primary outcomes

  1. Number of Participants With Adverse Events and/or Dose Limiting Toxicities as a Measure of Safety and Tolerability of Dose of PD-1 Knockout T Cells Using Common Terminology Criteria for Adverse Events (CTCAE v4.0) in Patients

    Time frame: Dose Escalation - Approximately 6 months

Secondary outcomes

  1. Number of Patients With Overall Response

    Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions: 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."

    Time frame: 3 months

  2. Number of Patients With Disease Control at 8 Weeks

    Response will be evaluated according to RECIST v1.1 for target lesions at Week 8:Complete Response (CR), Disappearance of all extranodal target lesions; Partial Response (PR) ≥ 30% decrease in the sum of diameters of target lesions; Stable Disease (SD) Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD; Disease control = CR +PR+SD

    Time frame: 8 weeks

  3. Progression Free Survival (PFS)

    Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

    Time frame: The time from the date of first edited T cell infusion to the date of disease progression or death due to any reason.

  4. Overall Survival (OS)

    OS is defined as the time interval from date of first edited T cell infusion to the date of death due to any reason

    Time frame: The duration from date of first edited T cell infusion to the date of death due to any reason

  5. Number of Participants With Genes Mutations in Peripheral Blood Circulating Tumor DNA (ctDNA)

    Driver genes mutaion stauts of Participants in ctDNA from peripheral blood were assessed by next generation sequencing (NGS), to explore the positive rate of sepicif driver genes (e.g. EGFR, ALK, ROS1, etc.) and the relationship between gene mutation status and clinical response

    Time frame: Baseline

  6. Interleukin-6 Change in the Peripheral Blood.

    Peripheral Interleukin-6 level at different timepoint (Baseline, 1 month and 3 month) was measured using rate nephelometry

    Time frame: Baseline, 1 month and 3 month

  7. Interleukin-10 Change in the Peripheral Blood.

    Peripheral Interleukin-10 level at different timepoint (Baseline, 1 month and 3 month) was measured using chemiluminescence.

    Time frame: Baseline, 1 month and 3 month

  8. Tumor Necrosis Factor-a Change in the Peripheral Blood.

    Peripheral Tumor Necrosis Factor-a level at different timepoint (Baseline, 1 month and 3 month) was measured using chemiluminescence.

    Time frame: Baseline, 1 month and 3 month

07

Results

Posted Dec 21, 2020

Participant flow

Participant flow — Overall Study
MilestonePre-A-One CycleA - Two CyclesB- Two CyclesC- Two Cycles
Started2433
Completed2433
Not completed0000

Outcome measures

PrimaryNumber of Participants With Adverse Events and/or Dose Limiting Toxicities as a Measure of Safety and Tolerability of Dose of PD-1 Knockout T Cells Using Common Terminology Criteria for Adverse Events (CTCAE v4.0) in Patients
Time frame:
Dose Escalation - Approximately 6 months
Reported as:
Count of participants · Participants
Number of Participants With Adverse Events and/or Dose Limiting Toxicities as a Measure of Safety and Tolerability of Dose of PD-1 Knockout T Cells Using Common Terminology Criteria for Adverse Events (CTCAE v4.0) in Patients
ParticipantsPre-A CohortA CohortB CohortC Cohort
Number of Participants With Adverse Events and/or Dose Limiting Toxicities as a Measure of Safety and Tolerability of Dose of PD-1 Knockout T Cells Using Common Terminology Criteria for Adverse Events (CTCAE v4.0) in Patients2432
SecondaryNumber of Patients With Overall Response

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions: 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."

Time frame:
3 months
Reported as:
Count of participants · Participants
Number of Patients With Overall Response
ParticipantsPre-A CohortA CohortB CohortC Cohort
Number of Patients With Overall Response0000
SecondaryNumber of Patients With Disease Control at 8 Weeks

Response will be evaluated according to RECIST v1.1 for target lesions at Week 8:Complete Response (CR), Disappearance of all extranodal target lesions; Partial Response (PR) ≥ 30% decrease in the sum of diameters of target lesions; Stable Disease (SD) Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD; Disease control = CR +PR+SD

Time frame:
8 weeks
Reported as:
Count of participants · Participants
Number of Patients With Disease Control at 8 Weeks
ParticipantsPre-A CohortA CohortB CohortC Cohort
Number of Patients With Disease Control at 8 Weeks1010
SecondaryProgression Free Survival (PFS)

Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Time frame:
The time from the date of first edited T cell infusion to the date of disease progression or death due to any reason.
Reported as:
Median · weeks
Progression Free Survival (PFS)
weeksPre-A CohortA CohortB CohortC Cohort
Progression Free Survival (PFS)11.7 (5.6 to 17.7)8.0 (7.3 to 8.4)8.1 (7.4 to 75.7)6.1 (5.0 to 8.1)
SecondaryOverall Survival (OS)

OS is defined as the time interval from date of first edited T cell infusion to the date of death due to any reason

Time frame:
The duration from date of first edited T cell infusion to the date of death due to any reason
Reported as:
Median · weeks
Overall Survival (OS)
weeksPre-A CohortA CohortB CohortC Cohort
Overall Survival (OS)47.5 (42.6 to 52.4)51.4 (13.4 to 116)32.6 (24.4 to 97.7)51.6 (21 to 96.7)
SecondaryNumber of Participants With Genes Mutations in Peripheral Blood Circulating Tumor DNA (ctDNA)

Driver genes mutaion stauts of Participants in ctDNA from peripheral blood were assessed by next generation sequencing (NGS), to explore the positive rate of sepicif driver genes (e.g. EGFR, ALK, ROS1, etc.) and the relationship between gene mutation status and clinical response

Time frame:
Baseline
Reported as:
Count of participants · Participants
Number of Participants With Genes Mutations in Peripheral Blood Circulating Tumor DNA (ctDNA)
ParticipantsPre-A CohortA CohortB CohortC Cohort
Number of Participants With Genes Mutations in Peripheral Blood Circulating Tumor DNA (ctDNA)0111
SecondaryInterleukin-6 Change in the Peripheral Blood.

Peripheral Interleukin-6 level at different timepoint (Baseline, 1 month and 3 month) was measured using rate nephelometry

Time frame:
Baseline, 1 month and 3 month
Reported as:
Median · pg/ml
Interleukin-6 Change in the Peripheral Blood.
pg/mlPre-A CohortA CohortB CohortC Cohort
baseline10.68 (8.98 to 12.38)3.27 (2.62 to 61.87)51.97 (8.09 to 67.09)10.59 (10.28 to 11.45)
1 month12.9 (1.5 to 24.3)4.37 (2.39 to 90.17)23.92 (5.58 to 137.1)14.77 (8.48 to 26.17)
3 month18.45 (18.45 to 18.45)—4.03 (4.03 to 4.03)12.49 (12.49 to 12.49)
SecondaryInterleukin-10 Change in the Peripheral Blood.

Peripheral Interleukin-10 level at different timepoint (Baseline, 1 month and 3 month) was measured using chemiluminescence.

Time frame:
Baseline, 1 month and 3 month
Reported as:
Median · pg/ml
Interleukin-10 Change in the Peripheral Blood.
pg/mlPre-A CohortA CohortB CohortC Cohort
baseline5.00 (5.00 to 5.00)5.00 (5.00 to 5.00)5.00 (5.00 to 5.00)5.00 (5.00 to 5.00)
1 month5.00 (5.00 to 5.00)5.00 (5.00 to 5.00)19.05 (7.3 to 30.8)5.00 (5.00 to 5.00)
3 month5.00 (5.00 to 5.00)—27.10 (27.10 to 27.10)5.00 (5.00 to 5.00)
SecondaryTumor Necrosis Factor-a Change in the Peripheral Blood.

Peripheral Tumor Necrosis Factor-a level at different timepoint (Baseline, 1 month and 3 month) was measured using chemiluminescence.

Time frame:
Baseline, 1 month and 3 month
Reported as:
Median · pg/ml
Tumor Necrosis Factor-a Change in the Peripheral Blood.
pg/mlPre-A CohortA CohortB CohortC Cohort
baseline13.84 (7.97 to 19.7)6.07 (5.61 to 8.53)8.89 (5.30 to 8.92)5.06 (4.01 to 6.28)
1 month10.68 (7.65 to 13.7)7.84 (5.74 to 7.92)10.40 (4.2 to 11.9)16.4 (6.31 to 27.70)
3 month6.97 (6.97 to 6.97)—10.90 (10.90 to 10.90)11.70 (11.70 to 11.70)

Adverse events

Collected over Adverse event data were collected for 2 years.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Pre-A Cohort0/2 (0%)0/2 (0%)2/2 (100%)
A Cohort0/4 (0%)0/4 (0%)4/4 (100%)
B Cohort0/3 (0%)0/3 (0%)3/3 (100%)
C Cohort0/3 (0%)0/3 (0%)2/3 (66.7%)
Most frequent other events
Showing 10 of 15
Most frequent other events
EventPre-A CohortA CohortB CohortC Cohort
FatigueGeneral disorders1/20/42/30/3
FeverGeneral disorders0/20/42/30/3
LymphopeniaBlood and lymphatic system disorders1/20/41/31/3
RashSkin and subcutaneous tissue disorders1/21/40/30/3
Premature beatsCardiac disorders1/20/40/30/3
HypertensionGeneral disorders1/20/40/30/3
Increased ALTImmune system disorders1/20/40/30/3
LeukopeniaBlood and lymphatic system disorders0/21/41/30/3
ArthralgiaImmune system disorders0/21/41/30/3
AnemiaBlood and lymphatic system disorders0/20/40/31/3

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Pre-A-One CycleA - Two CyclesB- Two CyclesC- Two CyclesTotal
<=18 years00000
Between 18 and 65 years232310
>=65 years01102
Age, Continuous
Age, Continuous(years)Pre-A-One CycleA - Two CyclesB- Two CyclesC- Two CyclesTotal
Median55.5 (48 to 63)56 (48 to 66)55 (31 to 68)53 (47 to 61)54.5 (31 to 68)
Age, Continuous
Age, Continuous(years)Pre-A-One CycleA - Two CyclesB- Two CyclesC- Two CyclesTotal
Mean55.5 (48 to 63)56 (48 to 66)55 (31 to 68)53 (47 to 61)54.5 (31 to 68)
Sex: Female, Male
Sex: Female, Male(Participants)Pre-A-One CycleA - Two CyclesB- Two CyclesC- Two CyclesTotal
Female02204
Male22138
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Pre-A-One CycleA - Two CyclesB- Two CyclesC- Two CyclesTotal
American Indian or Alaska Native00000
Asian243312
Native Hawaiian or Other Pacific Islander00000
Black or African American00000
White00000
More than one race00000
Unknown or Not Reported00000
Region of Enrollment
Region of Enrollment(participants)Pre-A-One CycleA - Two CyclesB- Two CyclesC- Two CyclesTotal
China243312
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Study locations

1 site
  • West China Hospital, Sichuan University
    Chengdu, Sichuan 610041, China
09

References and documents

Publications

  • Garon EB, Rizvi NA, Hui R, Leighl N, Balmanoukian AS, Eder JP, Patnaik A, Aggarwal C, Gubens M, Horn L, Carcereny E, Ahn MJ, Felip E, Lee JS, Hellmann MD, Hamid O, Goldman JW, Soria JC, Dolled-Filhart M, Rutledge RZ, Zhang J, Lunceford JK, Rangwala R, Lubiniecki GM, Roach C, Emancipator K, Gandhi L; KEYNOTE-001 Investigators. Pembrolizumab for the treatment of non-small-cell lung cancer. N Engl J Med. 2015 May 21;372(21):2018-28. doi: 10.1056/NEJMoa1501824. Epub 2015 Apr 19. PubMed 25891174 ↗
  • Brahmer J, Reckamp KL, Baas P, Crino L, Eberhardt WE, Poddubskaya E, Antonia S, Pluzanski A, Vokes EE, Holgado E, Waterhouse D, Ready N, Gainor J, Aren Frontera O, Havel L, Steins M, Garassino MC, Aerts JG, Domine M, Paz-Ares L, Reck M, Baudelet C, Harbison CT, Lestini B, Spigel DR. Nivolumab versus Docetaxel in Advanced Squamous-Cell Non-Small-Cell Lung Cancer. N Engl J Med. 2015 Jul 9;373(2):123-35. doi: 10.1056/NEJMoa1504627. Epub 2015 May 31. PubMed 26028407 ↗
  • Borghaei H, Paz-Ares L, Horn L, Spigel DR, Steins M, Ready NE, Chow LQ, Vokes EE, Felip E, Holgado E, Barlesi F, Kohlhaufl M, Arrieta O, Burgio MA, Fayette J, Lena H, Poddubskaya E, Gerber DE, Gettinger SN, Rudin CM, Rizvi N, Crino L, Blumenschein GR Jr, Antonia SJ, Dorange C, Harbison CT, Graf Finckenstein F, Brahmer JR. Nivolumab versus Docetaxel in Advanced Nonsquamous Non-Small-Cell Lung Cancer. N Engl J Med. 2015 Oct 22;373(17):1627-39. doi: 10.1056/NEJMoa1507643. Epub 2015 Sep 27. PubMed 26412456 ↗
  • Rosenberg SA, Restifo NP. Adoptive cell transfer as personalized immunotherapy for human cancer. Science. 2015 Apr 3;348(6230):62-8. doi: 10.1126/science.aaa4967. PubMed 25838374 ↗
  • Sharma P, Allison JP. Immune checkpoint targeting in cancer therapy: toward combination strategies with curative potential. Cell. 2015 Apr 9;161(2):205-14. doi: 10.1016/j.cell.2015.03.030. PubMed 25860605 ↗
  • Niu Y, Shen B, Cui Y, Chen Y, Wang J, Wang L, Kang Y, Zhao X, Si W, Li W, Xiang AP, Zhou J, Guo X, Bi Y, Si C, Hu B, Dong G, Wang H, Zhou Z, Li T, Tan T, Pu X, Wang F, Ji S, Zhou Q, Huang X, Ji W, Sha J. Generation of gene-modified cynomolgus monkey via Cas9/RNA-mediated gene targeting in one-cell embryos. Cell. 2014 Feb 13;156(4):836-43. doi: 10.1016/j.cell.2014.01.027. Epub 2014 Jan 30. PubMed 24486104 ↗
  • Lu Y, Xue J, Deng T, Zhou X, Yu K, Deng L, Huang M, Yi X, Liang M, Wang Y, Shen H, Tong R, Wang W, Li L, Song J, Li J, Su X, Ding Z, Gong Y, Zhu J, Wang Y, Zou B, Zhang Y, Li Y, Zhou L, Liu Y, Yu M, Wang Y, Zhang X, Yin L, Xia X, Zeng Y, Zhou Q, Ying B, Chen C, Wei Y, Li W, Mok T. Safety and feasibility of CRISPR-edited T cells in patients with refractory non-small-cell lung cancer. Nat Med. 2020 May;26(5):732-740. doi: 10.1038/s41591-020-0840-5. Epub 2020 Apr 27. Erratum In: Nat Med. 2020 Jul;26(7):1149. doi: 10.1038/s41591-020-0973-6. PubMed 32341578 ↗
  • Yi L, Li J. CRISPR-Cas9 therapeutics in cancer: promising strategies and present challenges. Biochim Biophys Acta. 2016 Dec;1866(2):197-207. doi: 10.1016/j.bbcan.2016.09.002. Epub 2016 Sep 15. PubMed 27641687 ↗

Study documents

  • Protocol and statistical analysis plan · Dec 4, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Undecided

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02793856
Lead sponsor
Sichuan University
Collaborators
Chengdu MedGenCell, Co., Ltd.
Responsible party
You Lu (Chair of Department of Thoracic Cancer, Sichuan University) — Principal investigator
First posted
Jun 8, 2016
Start date
Aug 26, 2016
Primary completion
Aug 20, 2018
Completion
Mar 17, 2020
Results posted
Dec 21, 2020
Last update
Jan 12, 2021

Study contacts

You Lu, MD
principal investigator · Sichuan University

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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