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CompletedNCT03792347PALACE-1Updated Nov 22, 2023Results posted

Preoperative Anti-PD-1 Antibody Combined With Chemoradiotherapy for Locally Advanced Squamous Cell Carcinoma of Esophagus

A Phase 1 interventional study of Pembrolizumab in Esophageal Squamous Cell Carcinoma, sponsored by Hecheng Li M.D., Ph.D. Completed at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2023-11-22.

Sponsored by Hecheng Li M.D., Ph.D · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
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Study summary

This study will evaluate the safety and feasibility of preoperative immune checkpoint therapy with concurrent chemoradiotherapy in patients with locally advanced esophageal squamous cell carcinoma. And this study will provide valuable information for further clinical trials of preoperative pembrolizumab and other immune checkpoint therapy in esophageal cancer treatment.

Read the detailed description

Esophageal cancer ranks the eighth most common cancer (the fifth most common cancer in China), while ESCC is the most common subtype in Asia (more than 90 % in china). Radical resection is thought to be the mainstay of esophageal cancer treatment and preoperative CRT is well applied in treating locally advanced esophageal cancer. In a multicohort, phase IB study, pembrolizumab was used in 23 unresectable esophageal cancer patients. In this clinical trial, the incidence of grade 3 treatment-related adverse events was 39 % without the appearance of grade 4 and higher-grade adverse event, while the overall response rate reached 30 %. The safety of immune checkpoint therapy for unresected esophageal cancers using nivolumab, a different PD-1 monoclonal antibody, has also been confirmed by high quality clinical trials.

This study will evaluate the safety and feasibility of preoperative immune checkpoint therapy using pembrolizumab with concurrent chemoradiotherapy in patients with locally advanced esophageal squamous cell carcinoma. And this study will provide valuable information for further clinical trials of preoperative pembrolizumab and other immune checkpoint therapy in esophageal cancer.

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Conditions studied

  • Esophageal Squamous Cell Carcinoma

Keywords

  • esophageal squamous cell carcinoma
  • neoadjuvant chemoradiotherapy
  • pembrolizumab
  • immune therapy
  • checkpoint inhibitor
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In context

Carcinoma

6,741 studies on the registry are indexed under Carcinoma; 1,161 are open to participants now.

This study's enrollment of 20 is below the median of 45 across 5,170 interventional studies indexed under Carcinoma.

Browse Carcinoma studies →

Lead sponsor

Hecheng Li M.D., Ph.D is the lead sponsor of 2 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • A patient will be eligible for inclusion in this study only if ALL of the following criteria apply:

    1. Histologically confirmed cT2-T4a,N0-N+,M0 resectable esophageal squamous cell carcinoma
    2. Eastern Cooperative Oncology Group (ECOG) performance status 0-1
    3. Patients approve and sign the informed consent

Exclusion criteria

Exclusion Criteria:

    1. Patients with active autoimmune disease or history of autoimmune disease 2. Patients who have a condition requiring systemic treatment with either corticosteroids or other immunosuppressive medications 3. Subjects with a history of symptomatic interstitial lung disease 4. History of allergy to study drug components 5. Women must not be pregnant or breast-feeding 6. Men with female partners (WOCBP) that are not willing to use contraception 7. Patient has received prior chemotherapy, radiotherapy, target therapy and immune therapy for this malignancy or for any other past malignancy 8. Underlying medical conditions that, in the Investigator's opinion, will make the administration of study drug hazardous or obscure the interpretation of toxicity or adverse events
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Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Arm 1

    Arm 1:preoperative pembrolizumab with chemoradiotherapy group Participants will receive carboplatin (AUC=2) IV and paclitaxel (50mg/m²) IV on day 1,8,15,22,29. And radiotherapy will start on day 1 of chemotherapy. A total of 41.4 Gy, 23 fractions of 1.8 Gy, 5 fractions a week. Participants will also receive pembrolizumab (2mg/kg) IV on days 1 and 22. Surgery will be performed within 6 weeks after completion of preoperative therapy described above.

    Drug: Pembrolizumab

Interventions

  • DrugPembrolizumab

    Arm1:Pre-operative Pembrolizumab+chemoradiotherapy

    Also known as: Keytruda

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What researchers measure

Primary outcomes

  1. Safety (Number of Participants With Grade 3 and Higher-grade Treatment-related Adverse Events)

    The number of participants with grade 3 and higher-grade treatment-related adverse events. Adverse events were evaluated using CTCAE 4.0, grade 3 treatment-related adverse events and higher-grade adverse events were reported.

    Time frame: From date of treatment allocation until surgery was applied during study period or up to at least 90 days after last dose

Secondary outcomes

  1. Feasibility (Number of Participants Who Finished Pembrolizumab With Chemoradiotherapy and Receive Surgery Within 4-6 Weeks After Preoperative Therapies)

    The number of participants who finished pembrolizumab with chemoradiotherapy and receive surgery within 4-6 weeks after preoperative therapies.

    Time frame: From date of treatment allocation until surgery or definitive chemoradiotherapy was applied, whichever came first, assessed up to 5 months

  2. Pathologic Complete Response

    Pathologic complete response was defined as the lack of all signs of cancer in tissue samples removed during surgery after treatment with pembrolizumab and chemoradiotherapy.

    Time frame: Two weeks after surgery

  3. Radiographic Response

    To assess radiographic response to neoadjuvant pembrolizumab with concurrent chemoradiotherapy using RECIST 1.1. Complete metabolic response (cMR), defined as a physiological distribution of FDG uptake on PET-CT with a SUVmax value of less than 4 with no nodal uptake.

    Time frame: From date of treatment allocation and during treatment period up to 3 months

07

Results

Posted Nov 22, 2023
Limitations and caveats
This was a single arm study. The sample size was small. Patients were highly selected and from a single center. These may strict the generalizability of the results.

Participant flow

Participant flow — Overall Study
MilestonePreoperative Pembrolizumab With Chemoradiotherapy Group
Started20
Completed20
Not completed0

Outcome measures

PrimarySafety (Number of Participants With Grade 3 and Higher-grade Treatment-related Adverse Events)

The number of participants with grade 3 and higher-grade treatment-related adverse events. Adverse events were evaluated using CTCAE 4.0, grade 3 treatment-related adverse events and higher-grade adverse events were reported.

Time frame:
From date of treatment allocation until surgery was applied during study period or up to at least 90 days after last dose
Reported as:
Count of participants · Participants
Safety (Number of Participants With Grade 3 and Higher-grade Treatment-related Adverse Events)
ParticipantsPreoperative Pembrolizumab With Chemoradiotherapy Group
Safety (Number of Participants With Grade 3 and Higher-grade Treatment-related Adverse Events)13
SecondaryFeasibility (Number of Participants Who Finished Pembrolizumab With Chemoradiotherapy and Receive Surgery Within 4-6 Weeks After Preoperative Therapies)

The number of participants who finished pembrolizumab with chemoradiotherapy and receive surgery within 4-6 weeks after preoperative therapies.

Time frame:
From date of treatment allocation until surgery or definitive chemoradiotherapy was applied, whichever came first, assessed up to 5 months
Reported as:
Count of participants · Participants
Feasibility (Number of Participants Who Finished Pembrolizumab With Chemoradiotherapy and Receive Surgery Within 4-6 Weeks After Preoperative Therapies)
ParticipantsPreoperative Pembrolizumab With Chemoradiotherapy Group
Feasibility (Number of Participants Who Finished Pembrolizumab With Chemoradiotherapy and Receive Surgery Within 4-6 Weeks After Preoperative Therapies)11
SecondaryPathologic Complete Response

Pathologic complete response was defined as the lack of all signs of cancer in tissue samples removed during surgery after treatment with pembrolizumab and chemoradiotherapy.

Time frame:
Two weeks after surgery
Reported as:
Count of participants · Participants
Pathologic Complete Response
ParticipantsPreoperative Pembrolizumab With Chemoradiotherapy Group
Pathologic Complete Response10
SecondaryRadiographic Response

To assess radiographic response to neoadjuvant pembrolizumab with concurrent chemoradiotherapy using RECIST 1.1. Complete metabolic response (cMR), defined as a physiological distribution of FDG uptake on PET-CT with a SUVmax value of less than 4 with no nodal uptake.

Time frame:
From date of treatment allocation and during treatment period up to 3 months
Reported as:
Count of participants · Participants
Radiographic Response
ParticipantsPreoperative Pembrolizumab With Chemoradiotherapy Group
Radiographic Response6

Adverse events

Collected over From date of treatment allocation until surgery was applied during study period or up to at least 90 days after last dose.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Preoperative Pembrolizumab With Chemoradiotherapy Group1/20 (5%)13/20 (65%)20/20 (100%)
Most frequent serious events
Most frequent serious events
EventPreoperative Pembrolizumab With Chemoradiotherapy Group
LymphopeniaBlood and lymphatic system disorders12/20
LeukopeniaBlood and lymphatic system disorders2/20
Decreased neutrophil countBlood and lymphatic system disorders1/20
Esophageal hemorrhageGastrointestinal disorders1/20
Most frequent other events
Showing 10 of 23
Most frequent other events
EventPreoperative Pembrolizumab With Chemoradiotherapy Group
LeukopeniaBlood and lymphatic system disorders18/20
AnemiaBlood and lymphatic system disorders16/20
AlopeciaGeneral disorders11/20
FatigueGeneral disorders11/20
EsophagitisGastrointestinal disorders11/20
AnorexiaGeneral disorders9/20
Decreased neutrophil countBlood and lymphatic system disorders8/20
LymphopeniaBlood and lymphatic system disorders8/20
NauseaGastrointestinal disorders8/20
Postoperative PneumoniaRespiratory, thoracic and mediastinal disorders4/18

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Preoperative Pembrolizumab With Chemoradiotherapy Group
<=18 years0
Between 18 and 65 years16
>=65 years4
Age, Continuous
Age, Continuous(years)Preoperative Pembrolizumab With Chemoradiotherapy Group
Median62 (42 to 66)
Sex: Female, Male
Sex: Female, Male(Participants)Preoperative Pembrolizumab With Chemoradiotherapy Group
Female1
Male19
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Preoperative Pembrolizumab With Chemoradiotherapy Group
American Indian or Alaska Native0
Asian20
Native Hawaiian or Other Pacific Islander0
Black or African American0
White0
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(Participants)Preoperative Pembrolizumab With Chemoradiotherapy Group
China20
Body Mass Index (BMI)
Body Mass Index (BMI)(kg/m^2)Preoperative Pembrolizumab With Chemoradiotherapy Group
Median23.20 (15.31 to 29.06)
Eastern Cooperative Oncology Group (ECOG) Performance Status
Eastern Cooperative Oncology Group (ECOG) Performance Status(Participants)Preoperative Pembrolizumab With Chemoradiotherapy Group
03
117
Smoking History
Smoking History(Participants)Preoperative Pembrolizumab With Chemoradiotherapy Group
Non-smoker6
Previous or current smoker14

5 further baseline measures are reported on the registry.

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Study locations

1 site
  • Ruijin Hospital, Shanghai JiaoTong University School of Medicine
    Shanghai, Shanghai 200025, China
09

References and documents

Publications

  • Li C, Zhao S, Zheng Y, Han Y, Chen X, Cheng Z, Wu Y, Feng X, Qi W, Chen K, Xiang J, Li J, Lerut T, Li H. Preoperative pembrolizumab combined with chemoradiotherapy for oesophageal squamous cell carcinoma (PALACE-1). Eur J Cancer. 2021 Feb;144:232-241. doi: 10.1016/j.ejca.2020.11.039. Epub 2020 Dec 26. PubMed 33373868 ↗

Study documents

  • Protocol and statistical analysis plan · Apr 8, 2019
  • Informed consent form · Apr 8, 2019

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

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 22, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03792347
Lead sponsor
Hecheng Li M.D., Ph.D
Responsible party
Hecheng Li M.D., Ph.D (Professor, Ruijin Hospital) — Sponsor-investigator
First posted
Jan 3, 2019
Start date
Jan 21, 2019
Primary completion
Mar 17, 2020
Completion
Jun 17, 2020
Results posted
Nov 22, 2023
Last update
Nov 22, 2023

Study contacts

Hecheng Li, MD PHD
principal investigator · Ruijin Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2023. You cannot join it, but the record below documents what was studied.

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