{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Back+Muscle+Spasm",
    "query": {
      "condition": "Back Muscle Spasm"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T22:53:24.010Z",
  "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": "NCT02135094",
      "title": "Low Intensity Ultrasound Therapy for Upper Back Pain Relief",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Muscle Spasm"
      ],
      "interventions": [
        {
          "name": "Active ultrasound therapy device",
          "type": "DEVICE"
        },
        {
          "name": "Placebo ultrasound therapy device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "ZetrOZ, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 33,
      "start_date": "2014-06",
      "completion_date": "2015-09",
      "has_results": true,
      "last_update_posted_date": "2020-04-02",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 1,
      "location_summary": "Trumbull, Connecticut",
      "locations": [
        {
          "city": "Trumbull",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02135094"
    },
    {
      "nct_id": "NCT04671082",
      "title": "Efficacy and Safety of Tolperisone in Subjects With Pain Due to Acute Back Muscle Spasm",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Back Muscle Spasm",
        "Back Pain",
        "Back Strain",
        "Back Spasm Upper",
        "Muscle Spasm",
        "Acute Pain"
      ],
      "interventions": [
        {
          "name": "Tolperisone Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neurana Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 1004,
      "start_date": "2020-12-15",
      "completion_date": "2022-03-21",
      "has_results": false,
      "last_update_posted_date": "2022-03-22",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 56,
      "location_summary": "Surprise, Arizona • Little Rock, Arkansas • Canoga Park, California + 51 more",
      "locations": [
        {
          "city": "Surprise",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04671082"
    },
    {
      "nct_id": "NCT02008136",
      "title": "New Approaches in Evaluating Patients' Response to Botulinum Toxins in the Treatment of Chronic Neck Pain and Back Pain",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cervicalgia",
        "Low Back Pain"
      ],
      "interventions": [
        {
          "name": "Botulinum Toxins",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VA Connecticut Healthcare System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 60,
      "start_date": "2016-03",
      "completion_date": "2018-12",
      "has_results": false,
      "last_update_posted_date": "2017-12-07",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 1,
      "location_summary": "West Haven, Connecticut",
      "locations": [
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02008136"
    },
    {
      "nct_id": "NCT03802565",
      "title": "Tolperisone in Acute Muscle Spasm of the Back",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Back Pain",
        "Acute Pain",
        "Back Spasm Upper Back",
        "Back Strain",
        "Muscle Cramp",
        "Muscle Spasm",
        "Low Back Pain"
      ],
      "interventions": [
        {
          "name": "Tolperisone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neurana Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 415,
      "start_date": "2019-02-01",
      "completion_date": "2019-07-12",
      "has_results": true,
      "last_update_posted_date": "2022-02-01",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 43,
      "location_summary": "Huntsville, Alabama • Tempe, Arizona • Little Rock, Arkansas + 39 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03802565"
    },
    {
      "nct_id": "NCT07792616",
      "title": "Electrical Neuromodulation for Modifying Spinal Network Involved in Spasticity",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries (Complete and Incomplete)",
        "Spinal Cord Injury",
        "Spinal Cord Injury Cervical",
        "Spinal Cord Injury Thoracic",
        "Spinal Cord Injuries",
        "Spasticity",
        "Spasm",
        "Muscle Spasticity",
        "Muscle Hypertonia",
        "Muscle Spasm"
      ],
      "interventions": [
        {
          "name": "Transcutaneous spinal stimulation at 30 Hz",
          "type": "OTHER"
        },
        {
          "name": "Transcutaneous spinal stimulation at 75 Hz",
          "type": "OTHER"
        },
        {
          "name": "Tizanidine",
          "type": "DRUG"
        },
        {
          "name": "Baclofen",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "University of Mississippi Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2022-07-13",
      "completion_date": "2027-07-14",
      "has_results": false,
      "last_update_posted_date": "2026-08-28",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 2,
      "location_summary": "Jackson, Mississippi",
      "locations": [
        {
          "city": "Jackson",
          "state": "Mississippi"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07792616"
    },
    {
      "nct_id": "NCT01562548",
      "title": "Exploratory Efficacy Study of Guaifenesin in Upper Back Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Upper Back Pain"
      ],
      "interventions": [
        {
          "name": "Guaifenesin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 78,
      "start_date": "2012-02",
      "completion_date": "2013-05",
      "has_results": true,
      "last_update_posted_date": "2014-06-03",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 5,
      "location_summary": "Fair Oaks, California • San Diego, California • Cincinnati, Ohio + 2 more",
      "locations": [
        {
          "city": "Fair Oaks",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01562548"
    },
    {
      "nct_id": "NCT00671879",
      "title": "Study to Evaluate Two Formulations of Carisoprodol in Subjects With Musculoskeletal Spasm of the Lower Back",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Lower Back Pain"
      ],
      "interventions": [
        {
          "name": "Carisoprodol SR 700 mg",
          "type": "DRUG"
        },
        {
          "name": "Carisoprodol SR 500 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Meda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 830,
      "start_date": "2008-04",
      "completion_date": "2009-03",
      "has_results": true,
      "last_update_posted_date": "2012-11-21",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 73,
      "location_summary": "Birmingham, Alabama • Gulf Shores, Alabama • Hueytown, Alabama + 62 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Gulf Shores",
          "state": "Alabama"
        },
        {
          "city": "Hueytown",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00671879"
    },
    {
      "nct_id": "NCT00671502",
      "title": "A Study to Evaluate Two Formulations of Carisoprodol in Subjects With Musculoskeletal Spasm of the Lower Back",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Lower Back Pain"
      ],
      "interventions": [
        {
          "name": "Carisoprodol SR",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Meda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 840,
      "start_date": "2008-04",
      "completion_date": "2009-02",
      "has_results": true,
      "last_update_posted_date": "2011-11-09",
      "last_synced_at": "2026-09-03T22:53:24.010Z",
      "location_count": 68,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Montgomery, Alabama + 58 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00671502"
    }
  ]
}