{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sodium+bicarbonate+buffered+lidocaine&page=2",
    "query": {
      "intervention": "sodium bicarbonate buffered lidocaine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 26,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sodium+bicarbonate+buffered+lidocaine&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sodium+bicarbonate+buffered+lidocaine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T02:47:19.937Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT02698527",
      "title": "The Effect of Buffered Lidocaine Versus Nonbuffered Lidocaine on Pain Scores During Infiltration for Vulvar Biopsies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Genital Diseases, Female"
      ],
      "interventions": [
        {
          "name": "Non-Buffered Lidocaine",
          "type": "DRUG"
        },
        {
          "name": "Buffered Lidocaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Women and Infants Hospital of Rhode Island",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 99 Years · Female only"
      },
      "enrollment_count": 128,
      "start_date": "2015-06",
      "completion_date": "2018-04",
      "has_results": false,
      "last_update_posted_date": "2018-10-10",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 2,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02698527"
    },
    {
      "nct_id": "NCT02354092",
      "title": "Paracervical Block for Pain Control With Osmotic Dilator Placement",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Abortion Late",
        "Pain"
      ],
      "interventions": [
        {
          "name": "Local anesthetic for tenaculum placement",
          "type": "PROCEDURE"
        },
        {
          "name": "Sham",
          "type": "PROCEDURE"
        },
        {
          "name": "Paracervical Block",
          "type": "PROCEDURE"
        },
        {
          "name": "Dilator Placement",
          "type": "PROCEDURE"
        },
        {
          "name": "Post-procedural assessment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Preprocedural pain control",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 14,
      "start_date": "2015-04-02",
      "completion_date": "2015-08-25",
      "has_results": true,
      "last_update_posted_date": "2019-06-11",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 2,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02354092"
    },
    {
      "nct_id": "NCT01094366",
      "title": "Paracervical Block for Pain Control in First Trimester Abortion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Legal Abortion With Complication",
        "Pain"
      ],
      "interventions": [
        {
          "name": "Paracervical Block",
          "type": "PROCEDURE"
        },
        {
          "name": "Sham Paracervical Block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 121,
      "start_date": "2010-04",
      "completion_date": "2012-11",
      "has_results": false,
      "last_update_posted_date": "2019-12-27",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01094366"
    },
    {
      "nct_id": "NCT06047366",
      "title": "Combination of Buffered Anesthetic to Treat Mandibular Molars",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Symptomatic Irreversible Pulpitis"
      ],
      "interventions": [
        {
          "name": "Sodium bicarbonate",
          "type": "DRUG"
        },
        {
          "name": "Lidocaine w/ epi",
          "type": "DRUG"
        },
        {
          "name": "Articaine w/ epi",
          "type": "DRUG"
        },
        {
          "name": "Mepivacaine plain",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 40,
      "start_date": "2023-12-05",
      "completion_date": "2024-05-15",
      "has_results": true,
      "last_update_posted_date": "2025-05-13",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06047366"
    },
    {
      "nct_id": "NCT04055116",
      "title": "Buffered Lidocaine in the Pediatric Dental Patient",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pediatric Dentistry"
      ],
      "interventions": [
        {
          "name": "Buffered Lidocaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "4 Years to 17 Years"
      },
      "enrollment_count": 64,
      "start_date": "2019-11-11",
      "completion_date": "2022-03-01",
      "has_results": true,
      "last_update_posted_date": "2023-04-07",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04055116"
    },
    {
      "nct_id": "NCT04254081",
      "title": "Addition of Buprenorphine to Paracervical Block for Pain Control During Osmotic Dilator Insertion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Procedural Pain",
        "Buprenorphine",
        "Adjuvants, Anesthesia",
        "Dilation and Evacuation",
        "Analgesics"
      ],
      "interventions": [
        {
          "name": "Buprenorphine 0.15 MG",
          "type": "DRUG"
        },
        {
          "name": "Lidocaine 1% Injectable Solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 57,
      "start_date": "2020-05-28",
      "completion_date": "2021-05-04",
      "has_results": true,
      "last_update_posted_date": "2023-08-01",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04254081"
    },
    {
      "nct_id": "NCT05227300",
      "title": "Buffered vs. Unbuffered Local Anesthesia in Mandibular Molars Diagnosed With Symptomatic Irreversible Pulpitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Symptomatic Irreversible Pulpitis"
      ],
      "interventions": [
        {
          "name": "Onset Sodium Bicarbonate Inj., 8.4%, USP Neutralizing Additive Solution",
          "type": "DRUG"
        },
        {
          "name": "2% lidocaine with 1:100,000 epinephrine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-02-14",
      "completion_date": "2022-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-05-14",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05227300"
    },
    {
      "nct_id": "NCT01466491",
      "title": "Refining Paracervical Block Techniques for Pain Control in First Trimester Surgical Abortion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Paracervical block technique with lidocaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 99 Years · Female only"
      },
      "enrollment_count": 332,
      "start_date": "2011-10",
      "completion_date": "2013-05",
      "has_results": true,
      "last_update_posted_date": "2019-11-08",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 2,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01466491"
    },
    {
      "nct_id": "NCT03107754",
      "title": "Buffered Lidocaine in Paracervical Blocks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Lidocaine",
          "type": "DRUG"
        },
        {
          "name": "Lidocaine-Sodium Bicarbonate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Hawaii",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "14 Years and older · Female only"
      },
      "enrollment_count": 98,
      "start_date": "2017-05-15",
      "completion_date": "2018-10-25",
      "has_results": true,
      "last_update_posted_date": "2021-01-05",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 1,
      "location_summary": "Honolulu, Hawaii",
      "locations": [
        {
          "city": "Honolulu",
          "state": "Hawaii"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03107754"
    },
    {
      "nct_id": "NCT06661902",
      "title": "Buffered Lidocaine for Reducing Pain in Patients Undergoing Prostate Biopsy, BURN Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Buffered Lidocaine (1% Lidocaine + 8.4% Sodium Bicarbonate, in a 3:1 ratio)",
          "type": "DRUG"
        },
        {
          "name": "Lidocaine",
          "type": "DRUG"
        },
        {
          "name": "Biopsy of Prostate",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 350,
      "start_date": "2025-01-09",
      "completion_date": "2026-01-27",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-10-10T02:47:19.937Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06661902"
    }
  ]
}