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Tetracycline Treatment Tolerability Trial (T-4)

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ClinicalTrials.gov Identifier: NCT05219929
Recruitment Status : Enrolling by invitation
First Posted : February 2, 2022
Last Update Posted : November 8, 2022
Information provided by (Responsible Party):
Johns Hopkins University

Brief Summary:
Randomized, double-blind, placebo-controlled study (no washout period required) where subjects receive either 3 months of tetracycline or 3 months of placebo. After the 3 month primary endpoint, in the follow-up period, patients will be assigned to the alternate treatment for 3 months with blind maintained.

Condition or disease Intervention/treatment Phase
Post-Treatment Lyme Disease Drug: Tetracycline 500 Mg Other: Placebo Phase 2

Detailed Description:

There is precedent for the use of tetracycline class antibiotics as an anti-inflammatory agent in chronic illnesses including dermatologic and rheumatologic illnesses. The 2015 American College of Rheumatology Guideline for the Treatment of Rheumatoid Arthritis (RA) includes long-term therapy with tetracycline in its treatment recommendations. This class of antibiotics has known anti-inflammatory effect in addition to its antimicrobial properties. Tetracyclines, in particular minocycline, have been associated with a significant improvement in disease activity in RA with no increased risk of adverse effects.

To date, no clinical trials have examined the benefit of extended duration; i.e. >4 weeks tetracycline therapy in PTLD. Concerns over side effects and the development of antibiotic-resistance and superinfections such as Clostridioides difficile have limited the use of long-term antibiotics, including tetracycline. There is a large body of literature on tetracycline and other drugs in this class regarding the drugs' anti-inflammatory properties and potential benefit in several non-infectious diseases such cerebrovascular disease, rheumatoid arthritis, and rosacea.

The investigators believe that this deserves further study. Initially, the investigators propose this pilot study to examine the feasibility and tolerability of tetracycline treatment in PTLD Secondarily, the investigators propose to assess preliminary data on the efficacy of 3 months duration tetracycline treatment in reducing PTLD symptoms at (1) the end of the three-month treatment period, and (2) rate of change during the 1st 3 months of treatment.

Lastly, as an exploration, the investigators will explore in the follow-up period the return of symptoms after the completion of the 3 month tetracycline and the effect of 3 months of tetracycline in the placebo arm.

The investigators hypothesize that a tetracycline study over a 4 year interval will be feasible to conduct and tolerable to patients. Secondarily, the investigators hypothesize that 3 months of tetracycline treatment will be associated with greater improvements in fatigue, symptom burden and functional impact than placebo. This research is important because the long-term sequelae of LD are debilitating to patients and costly to society.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 60 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Other
Official Title: T4 - Tetracycline Treatment Tolerability Trial A Pilot Study Examining the Feasibility and Tolerability of Tetracycline Therapy in Post-Treatment Lyme Disease (PTLD)
Actual Study Start Date : November 2, 2022
Estimated Primary Completion Date : October 2024
Estimated Study Completion Date : October 2026

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Lyme Disease

Arm Intervention/treatment
Active Comparator: Tetracycline First
Tetracycline for first 3 months, placebo for second 3 months.
Drug: Tetracycline 500 Mg
500 mg three times daily

Other: Placebo
Placebo for Tetracycline given same way as Tetracycline.

Placebo Comparator: Placebo First
Placebo for first 3 months, tetracycline for second 3 months.
Drug: Tetracycline 500 Mg
500 mg three times daily

Other: Placebo
Placebo for Tetracycline given same way as Tetracycline.

Primary Outcome Measures :
  1. Participant Retention [ Time Frame: 36 months ]
    Number of participants retained.

  2. Tolerability as assessed by number of side effects [ Time Frame: 36 months ]
    Tolerability as assessed by number of side effects, as measured by Systematic Assessment for Treatment Emergent Events (SAFTEE).

  3. Tolerability as assessed by severity of side effects [ Time Frame: 36 months ]
    Tolerability as assessed by severity of side effects, as measured by SAFTEE.

Secondary Outcome Measures :
  1. Fatigue as assessed by the Fatigue Severity Scale [ Time Frame: 36 months ]
    A change of 0.7 in the Fatigue Severity Scale will be considered clinically significant

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • ≥ 18 to 80 years of age
  • Meet criteria operationalized from the Infectious Diseases Society of America (IDSA) case definition for PTLD (ref) previously treated with at least one recommended course of antibiotic therapy.
  • Have persistent symptoms in at least the last month. "Currently have at least one symptom attributed to Lyme disease that a) you've experienced in the past month and b) limits your daily functioning at least half the time when its present"
  • Fatigue Severity Scale survey score of at least 4.0 signifying moderate or greater severity of fatigue.
  • Medical Records documented history of definite or probable Lyme disease with onset starts in the last 5 years, with symptoms developing within 1 year of Lyme onset.

Definite LD. Medical record documented history of erythema migrans or medical record documented history of a Lyme disease compatible neurologic, cardiac or musculoskeletal manifestation of Lyme disease with a confirmatory 2-tier serology, modified 2-tier serologic test, or immunoglobulin G (IgG) western blot and a lack of alternative diagnosis Probable LD. Medical record documented history of Lyme disease with atypical or nonspecific manifestations with a confirmatory 2-tier serology, modified 2-tier serologic test, or IgG western blot and a lack of alternative diagnosis.

Exclusion Criteria:

  • Medications:

No antibiotics in the prior 2 months No change in medications during the prior 4 months that might have an impact on primary and secondary outcome measures. See list. No immunosuppressive medications No medications that interact with tetracycline: atovaquone, retinoid medications taken by mouth (such as acitretin, isotretinoin), strontium, digoxin, kaolin pectin, warfarin Use of prescription or over the counter (OTC) medications containing calcium (i.e. Tums)

• History of the following conditions predating the diagnosis of Lyme disease: Myalgic encephalomyelitis/chronic fatigue syndrome Fibromyalgia Autoimmune disease

  • Major psychiatric conditions Bipolar disorder, delusional disorder, schizophrenia Major depression Suicidal ideation with intent during the prior 6 months
  • History of the following conditions in the last 4 months Alcohol or substance abuse Cancer (other than skin) Untreated HIV/AIDS Untreated moderate to severe sleep apnea Hepatitis A, B or C Pregnancy or intent to become pregnant Breastfeeding
  • BMI greater than 40
  • Other conditions at the discretion of the clinician

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05219929

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United States, Maryland
Johns Hopkins Lyme Disease Research Center
Lutherville, Maryland, United States, 21093
Sponsors and Collaborators
Johns Hopkins University
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Principal Investigator: John N. Aucott, MD Johns Hopkins University
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Responsible Party: Johns Hopkins University
ClinicalTrials.gov Identifier: NCT05219929    
Other Study ID Numbers: IRB00288079
First Posted: February 2, 2022    Key Record Dates
Last Update Posted: November 8, 2022
Last Verified: November 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Lyme Disease
Post-Lyme Disease Syndrome
Gram-Negative Bacterial Infections
Bacterial Infections
Bacterial Infections and Mycoses
Borrelia Infections
Spirochaetales Infections
Tick-Borne Diseases
Vector Borne Diseases
Anti-Bacterial Agents
Anti-Infective Agents
Protein Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action