{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Spero+Therapeutics",
    "query": {
      "sponsor": "Spero Therapeutics"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Spero+Therapeutics&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T19:00:13.064Z",
  "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": "NCT04238195",
      "title": "A Single-Dose, Randomized, Placebo- and Active-Control, Four-Way, Cross-Over Study for the Evaluation of the Effect of Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr) on the QT/QTc Intervals in Adult Healthy Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "TQT Study"
      ],
      "interventions": [
        {
          "name": "Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr) + Placebo",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin 400mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr)",
          "type": "OTHER"
        },
        {
          "name": "Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 24,
      "start_date": "2020-01-19",
      "completion_date": "2020-02-26",
      "has_results": false,
      "last_update_posted_date": "2020-03-13",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04238195"
    },
    {
      "nct_id": "NCT05296382",
      "title": "Bioavailability of Tebipenem (SPR994) Crushed Tablet",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Relative Bioavailability"
      ],
      "interventions": [
        {
          "name": "Tebipenem tablet form",
          "type": "DRUG"
        },
        {
          "name": "Tube feeds",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Hartford Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 12,
      "start_date": "2022-04-01",
      "completion_date": "2022-12-23",
      "has_results": false,
      "last_update_posted_date": "2024-02-28",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Hartford, Connecticut",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05296382"
    },
    {
      "nct_id": "NCT06727136",
      "title": "A Study to Characterize Single and Repeat Dose Pharmacokinetics of Tebipenem-Pivoxil-Hydrobromide (TBP-PI-HBr) and Its Major Metabolite (SPR1349) in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "TBP-PI-HBr",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 39,
      "start_date": "2024-11-20",
      "completion_date": "2025-04-22",
      "has_results": false,
      "last_update_posted_date": "2025-05-20",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06727136"
    },
    {
      "nct_id": "NCT04421885",
      "title": "Bioequivalence Study Comparing Two Tablet Formulations of Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr) in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Tebipenem pivoxil hydrobromide (TBPM-PI-HBr) - Reference",
          "type": "DRUG"
        },
        {
          "name": "Tebipenem pivoxil hydrobromide (TBPM-PI-HBr) - Test",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 36,
      "start_date": "2020-06-01",
      "completion_date": "2020-07-29",
      "has_results": false,
      "last_update_posted_date": "2020-08-12",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04421885"
    },
    {
      "nct_id": "NCT05856747",
      "title": "A Study to Compare Two Bioanalytical Assays for Tebipenem",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "TBP-PI-HBr",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 20,
      "start_date": "2023-05-04",
      "completion_date": "2023-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-03-27",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Creve Coeur, Missouri",
      "locations": [
        {
          "city": "Creve Coeur",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05856747"
    },
    {
      "nct_id": "NCT04368585",
      "title": "Study to Examine the Effect of Antacid and Omeprazole on the Single-Dose Pharmacokinetics of Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr) in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Tebipenem pivoxil hydrobromide (TBPM-PI-HBr)",
          "type": "DRUG"
        },
        {
          "name": "20 mL aluminum hydroxide/magnesium hydroxide/simethicone (400 mg aluminum hydroxide/400 mg magnesium hydroxide/40 mg simethicone per 5 mL)",
          "type": "DRUG"
        },
        {
          "name": "Omeprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 20,
      "start_date": "2020-07-01",
      "completion_date": "2020-08-21",
      "has_results": false,
      "last_update_posted_date": "2020-09-04",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04368585"
    },
    {
      "nct_id": "NCT05496374",
      "title": "A Study to Evaluate the Efficacy, Safety, Tolerability, and Pharmacokinetics of SPR720 as Compared With Placebo for the Treatment of Participants With Mycobacterium Avium Complex (MAC) Pulmonary Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Nontuberculous Mycobacterial Pulmonary Disease (NTM-PD)"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "SPR720 500 mg",
          "type": "DRUG"
        },
        {
          "name": "SPR720 1000 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2022-12-14",
      "completion_date": "2024-12-02",
      "has_results": false,
      "last_update_posted_date": "2025-10-09",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 28,
      "location_summary": "Birmingham, Alabama • Fresno, California • Los Angeles, California + 25 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Northridge",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05496374"
    },
    {
      "nct_id": "NCT05966688",
      "title": "A Study to Evaluate the Effect of Co-administration on the Pharmacokinetics of SPR720, Azithromycin, and Ethambutol in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "SPR720",
          "type": "DRUG"
        },
        {
          "name": "Azithromycin",
          "type": "DRUG"
        },
        {
          "name": "Ethambutol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 39,
      "start_date": "2023-08-04",
      "completion_date": "2024-02-04",
      "has_results": false,
      "last_update_posted_date": "2024-03-04",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05966688"
    },
    {
      "nct_id": "NCT06059846",
      "title": "A Study of Oral Tebipenem Pivoxil Hydrobromide (TBP-PI-HBr) Compared to Intravenous Imipenem-cilastatin in Participants With Complicated Urinary Tract Infection (cUTI) or Acute Pyelonephritis (AP)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Urinary Tract Infection",
        "Acute Pyelonephritis"
      ],
      "interventions": [
        {
          "name": "TBP-PI-HBr",
          "type": "DRUG"
        },
        {
          "name": "Imipenem-cilastatin",
          "type": "DRUG"
        },
        {
          "name": "Dummy Infusion",
          "type": "DRUG"
        },
        {
          "name": "Dummy Tablets",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1690,
      "start_date": "2023-12-21",
      "completion_date": "2025-02-06",
      "has_results": true,
      "last_update_posted_date": "2026-03-10",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 2,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06059846"
    },
    {
      "nct_id": "NCT04710407",
      "title": "Study to Assess the Intrapulmonary Pharmacokinetics of SPR859 by Comparing the Plasma, Epithelial Lining Fluid (ELF), and Alveolar Macrophages (AM) Concentrations Following the Oral Administration of Five Doses of SPR994 in Healthy, Nonsmoking Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "TBPM-PI-HBr",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 30,
      "start_date": "2020-12-07",
      "completion_date": "2021-03-10",
      "has_results": false,
      "last_update_posted_date": "2021-03-16",
      "last_synced_at": "2026-10-04T19:00:13.064Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04710407"
    }
  ]
}