Clinical trial · Interventional
PD-1 Knockout Engineered T Cells for Metastatic Renal Cell Carcinoma.
A Dose-escalation Phase I Trial of PD-1 Knockout Engineered T Cells for the Treatment of Metastatic Renal Cell Carcinoma
NCT02867332CI-TRIAL-00037476withdrawnPhase 1ClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): No funding
Summary
Brief summary (as posted)
This study will evaluate the safety of PD-1 knockout engineered T cells in treating metastatic advanced renal cancer. Blood samples will also be collected for research purposes.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Metastatic Renal Cell Carcinoma | Renal Cell Carcinoma | CURATED_BROADER | 0.80 |
Interventions
Interventions (3)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Cyclophosphamide | Drug | Cyclophosphamide | ALIAS |
| IL-2 | Drug | — | UNRESOLVED |
| PD-1 Knockout T Cells | Biological | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Test group
- description
- 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.Interleukin-2 (IL-2) will be given in the following 5 days, 720000 international unit（IU）/Kg/ day (if tolerant). Patients will receive a total of 2, 3, 4 cycles of treatment.
- interventionNames
- Biological: PD-1 Knockout T Cells
- Drug: Cyclophosphamide
- Drug: IL-2
- type
- PLACEBO_COMPARATOR
- label
- Comparable group
- description
- Peripheral blood lymphocytes will be collected and Programmed cell death protein 1(PDCD1) gene will not be knocked out by CRISPR Cas9 in the laboratory (PD-1 Wild-type 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.Interleukin-2 (IL-2) will be given in the following 5 days, 720000 international unit（IU）/Kg/ day (if tolerant). Patients will receive a total of 2, 3, 4 cycles of treatment.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 75 Years
Show eligibility criteria text
Inclusion Criteria: * Pathologically verified stage IV Renal 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: * 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
References
Publications (6)
- BACKGROUNDGandini S, Massi D, Mandala M. PD-L1 expression in cancer patients receiving anti PD-1/PD-L1 antibodies: A systematic review and meta-analysis. Crit Rev Oncol Hematol. 2016 Apr;100:88-98. doi: 10.1016/j.critrevonc.2016.02.001. Epub 2016 Feb 10. PMID 26895815
- RESULTKoshkin VS, Rini BI. Emerging therapeutics in refractory renal cell carcinoma. Expert Opin Pharmacother. 2016 Jun;17(9):1225-32. doi: 10.1080/14656566.2016.1182987. Epub 2016 May 23. PMID 27112171
- RESULTHofmann L, Forschner A, Loquai C, Goldinger SM, Zimmer L, Ugurel S, Schmidgen MI, Gutzmer R, Utikal JS, Goppner D, Hassel JC, Meier F, Tietze JK, Thomas I, Weishaupt C, Leverkus M, Wahl R, Dietrich U, Garbe C, Kirchberger MC, Eigentler T, Berking C, Gesierich A, Krackhardt AM, Schadendorf D, Schuler G, Dummer R, Heinzerling LM. Cutaneous, gastrointestinal, hepatic, endocrine, and renal side-effects of anti-PD-1 therapy. Eur J Cancer. 2016 Jun;60:190-209. doi: 10.1016/j.ejca.2016.02.025. Epub 2016 Apr 13. PMID 27085692
- RESULTGunturi A, McDermott DF. Potential of new therapies like anti-PD1 in kidney cancer. Curr Treat Options Oncol. 2014 Mar;15(1):137-46. doi: 10.1007/s11864-013-0268-y. PMID 24504486
- RESULTBockorny B, Dasanu CA. Intrinsic immune alterations in renal cell carcinoma and emerging immunotherapeutic approaches. Expert Opin Biol Ther. 2013 Jun;13(6):911-25. doi: 10.1517/14712598.2013.778970. Epub 2013 Apr 16. PMID 23586712
- DERIVEDYi 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. PMID 27641687