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NCT04278144

A First-in-human Study Using BDC-1001 as a Single Agent and in Combination With Nivolumab in Advanced HER2-Expressing Solid Tumors

Version 12 to 13 · Bolt Biotherapeutics, Inc.

Patch inspector

Version 12 to 13

12 operations 5 path groups ctgov_internal_history
ClinicalTrials.gov
Severity is deterministic uncalibrated triage metadata, not validated review priority. Operation-level severity is inferred from deterministic path rules. Rule matches shown per operation are approximate previews (they skip the pipeline's suppression passes); the authoritative classification is the stored event record.
Plain-language summary

Manual review pending.

Rules fired
eligibility_criteria_changeenrollment_count_changeprimary_outcome_any_change
Value signals
[
  {
    "path": "/protocolSection/designModule/enrollmentInfo/count",
    "signal": "enrollment_count_change_ge_20pct",
    "category": "enrollment_change",
    "severity": "high",
    "new_value": 607,
    "old_value": 390,
    "pct_change": 0.5564
  }
]
Provenance
Source
ctgov_internal_history
Fetched
2026-06-18 19:11:05+00
Raw hash
4abc5b15b828ef3b90cae6d38767c9f3845f32127906c49df67ef970ef4fa5f1
Payload
Source URL
Primary outcomes Outcome measures that define the trial's primary evidence target. Triage: Critical 1 ops
replace /protocolSection/outcomesModule/primaryOutcomes/1/timeFrame
Triage: Critical
Primary Outcome Change Operation 9
Matched rules
  • primary_outcome_any_change Any add/remove/replace under primary outcome measures is critical review priority.
Before
21 days
After
up to 21 days
Design Trial model, phase, allocation, masking, arms, or interventions. Triage: High 1 ops
replace /protocolSection/designModule/enrollmentInfo/count
Triage: High
Enrollment Change Operation 8
Matched rules
  • enrollment_count_change Enrollment count changes can signal scope or feasibility shifts.
Before
390
After
607
Eligibility Criteria and population definition changes. Triage: High 1 ops
replace /protocolSection/eligibilityModule/eligibilityCriteria
Triage: High
Eligibility Change Operation 10
Matched rules
  • eligibility_criteria_change Eligibility criteria changes can alter the studied population.
Before
<p>Key Inclusion Criteria:</p><ul><li>Patient must have an advanced solid tumor with documented HER2-protein expression or gene amplification for which approved therapies have been exhausted or are not clinically indicated.</li><li>Measurable disease as determined by RECIST v.1.1.</li><li>Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.</li><li>Tumor tissue (archival or collected prior to the study start) available for exploratory biomarker evaluation.</li></ul><p>Key Exclusion Criteria:</p><ul><li>History of severe hypersensitivity to any ingredient of the study drug(s), including trastuzumab or other monoclonal antibody.</li><li>Previous treatment with a TLR 7, TLR 8 or a TLR 7&#x2F;8 agonist.</li><li>Impaired cardiac function or history of clinically significant cardiac disease</li><li>Human Immunodeficiency virus (HIV) infection, active hepatitis B infection, or hepatitis C infection.</li><li>Untreated central nervous system (CNS), epidural tumor or metastasis, or brain metastasis.</li></ul><p>Other protocol defined inclusion&#x2F;exclusion criteria may apply.</p>
After
<p>Key Inclusion Criteria:</p><ul><li>Patient must have an advanced solid tumor with documented HER2-protein expression or gene amplification for which approved therapies have been exhausted or are not clinically indicated.</li><li>Measurable disease as determined by RECIST v.1.1.</li><li>Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.</li><li>Tumor tissue (archival or collected prior to the study start) available for exploratory biomarker evaluation.</li></ul><p>Key Exclusion Criteria:</p><ul><li>History of severe hypersensitivity to any ingredient of the study drug(s), including trastuzumab or other monoclonal antibody.</li><li>Previous treatment with a TLR 7, TLR 8 or a TLR 7&#x2F;8 agonist.</li><li>Impaired cardiac function or history of clinically significant cardiac disease</li><li>Human Immunodeficiency virus (HIV) infection, active hepatitis B infection, or hepatitis C infection.</li><li>Active SARS-CoV-2 infection</li><li>Untreated central nervous system (CNS), epidural tumor or metastasis, or brain metastasis.</li></ul><p>Other protocol defined inclusion&#x2F;exclusion criteria may apply.</p>
Contacts and locations Site, contact, and location updates that are usually operational. Triage: Uncategorized 2 ops
remove /protocolSection/contactsLocationsModule/locations/8
Triage: Uncategorized
Uncategorized Operation 11
Before
{
  "zip": "15213",
  "city": "Pittsburgh",
  "state": "Pennsylvania",
  "status": "RECRUITING",
  "country": "United States",
  "contacts": [
    {
      "name": "Leisha A Emens, MD, PhD",
      "role": "CONTACT",
      "email": "emensla@upmc.edu"
    }
  ],
  "facility": "University of Pittsburgh Medical Center (UPMC)",
  "geoPoint": {
    "lat": 40.44062,
    "lon": -79.99589
  }
}
add /protocolSection/contactsLocationsModule/locations/11
Triage: Uncategorized
Uncategorized Operation 12
After
{
  "zip": "05505",
  "city": "Seoul",
  "state": "Songpa-gu",
  "status": "RECRUITING",
  "country": "South Korea",
  "contacts": [
    {
      "name": "Yoon-Koo Kang",
      "role": "CONTACT",
      "email": "ykkang@amc.seoul.kr",
      "phone": "+82-2-3010-3230"
    }
  ],
  "facility": "Asan Medical Center",
  "geoPoint": {
    "lat": 37.566,
    "lon": 126.9784
  }
}
Other registry fields Changes outside the current high-signal rule families. Triage: Uncategorized 7 ops
replace /protocolSection/statusModule/statusVerifiedDate
Triage: Uncategorized
Uncategorized Operation 1
Before
2021-02
After
2021-04
replace /protocolSection/statusModule/lastUpdateSubmitDate
Triage: Uncategorized
Uncategorized Operation 2
Before
2021-02-04
After
2021-04-13
replace /protocolSection/statusModule/lastUpdatePostDateStruct/date
Triage: Uncategorized
Uncategorized Operation 3
Before
2021-02-08
After
2021-04-19
replace /protocolSection/conditionsModule/conditions/0
Triage: Uncategorized
Uncategorized Operation 4
Before
Neoplasm, Metastatic
After
HER2 Positive Solid Tumors
remove /protocolSection/conditionsModule/conditions/1
Triage: Uncategorized
Uncategorized Operation 5
Before
Neoplasm, Breast
remove /protocolSection/conditionsModule/conditions/1
Triage: Uncategorized
Uncategorized Operation 6
Before
Neoplasm, Gastric
add /protocolSection/conditionsModule/keywords
Triage: Uncategorized
Uncategorized Operation 7
After
[
  "HER2",
  "ERBB2",
  "Immunotherapy",
  "Gastric Cancer",
  "Gastroesophageal junction",
  "Breast Cancer",
  "Stomach Cancer",
  "Colorectal Cancer",
  "Gastrointestinal Cancer",
  "Non-Small Cell Lung Cancer",
  "Biliary Tract Cancer",
  "Head and Neck Cancer",
  "Urothelial Cancer",
  "Endometrial Cancer",
  "TLR7&#x2F;8 agonist"
]
Raw JSON Patch
[
  {
    "op": "replace",
    "path": "/protocolSection/statusModule/statusVerifiedDate",
    "value": "2021-04"
  },
  {
    "op": "replace",
    "path": "/protocolSection/statusModule/lastUpdateSubmitDate",
    "value": "2021-04-13"
  },
  {
    "op": "replace",
    "path": "/protocolSection/statusModule/lastUpdatePostDateStruct/date",
    "value": "2021-04-19"
  },
  {
    "op": "replace",
    "path": "/protocolSection/conditionsModule/conditions/0",
    "value": "HER2 Positive Solid Tumors"
  },
  {
    "op": "remove",
    "path": "/protocolSection/conditionsModule/conditions/1"
  },
  {
    "op": "remove",
    "path": "/protocolSection/conditionsModule/conditions/1"
  },
  {
    "op": "add",
    "path": "/protocolSection/conditionsModule/keywords",
    "value": [
      "HER2",
      "ERBB2",
      "Immunotherapy",
      "Gastric Cancer",
      "Gastroesophageal junction",
      "Breast Cancer",
      "Stomach Cancer",
      "Colorectal Cancer",
      "Gastrointestinal Cancer",
      "Non-Small Cell Lung Cancer",
      "Biliary Tract Cancer",
      "Head and Neck Cancer",
      "Urothelial Cancer",
      "Endometrial Cancer",
      "TLR7&#x2F;8 agonist"
    ]
  },
  {
    "op": "replace",
    "path": "/protocolSection/designModule/enrollmentInfo/count",
    "value": 607
  },
  {
    "op": "replace",
    "path": "/protocolSection/outcomesModule/primaryOutcomes/1/timeFrame",
    "value": "up to 21 days"
  },
  {
    "op": "replace",
    "path": "/protocolSection/eligibilityModule/eligibilityCriteria",
    "value": "<p>Key Inclusion Criteria:</p><ul><li>Patient must have an advanced solid tumor with documented HER2-protein expression or gene amplification for which approved therapies have been exhausted or are not clinically indicated.</li><li>Measurable disease as determined by RECIST v.1.1.</li><li>Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.</li><li>Tumor tissue (archival or collected prior to the study start) available for exploratory biomarker evaluation.</li></ul><p>Key Exclusion Criteria:</p><ul><li>History of severe hypersensitivity to any ingredient of the study drug(s), including trastuzumab or other monoclonal antibody.</li><li>Previous treatment with a TLR 7, TLR 8 or a TLR 7&#x2F;8 agonist.</li><li>Impaired cardiac function or history of clinically significant cardiac disease</li><li>Human Immunodeficiency virus (HIV) infection, active hepatitis B infection, or hepatitis C infection.</li><li>Active SARS-CoV-2 infection</li><li>Untreated central nervous system (CNS), epidural tumor or metastasis, or brain metastasis.</li></ul><p>Other protocol defined inclusion&#x2F;exclusion criteria may apply.</p>"
  },
  {
    "op": "remove",
    "path": "/protocolSection/contactsLocationsModule/locations/8"
  },
  {
    "op": "add",
    "path": "/protocolSection/contactsLocationsModule/locations/11",
    "value": {
      "zip": "05505",
      "city": "Seoul",
      "state": "Songpa-gu",
      "status": "RECRUITING",
      "country": "South Korea",
      "contacts": [
        {
          "name": "Yoon-Koo Kang",
          "role": "CONTACT",
          "email": "ykkang@amc.seoul.kr",
          "phone": "+82-2-3010-3230"
        }
      ],
      "facility": "Asan Medical Center",
      "geoPoint": {
        "lat": 37.566,
        "lon": 126.9784
      }
    }
  }
]