Vaginal Microbiota Transplant (MOTIF)
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04046900 |
Recruitment Status :
Recruiting
First Posted : August 6, 2019
Last Update Posted : March 14, 2023
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Condition or disease | Intervention/treatment | Phase |
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Recurrent Bacterial Vaginosis | Biological: Vaginal microbiome transplant Drug: Oral Metronidazole Other: Sterile saline | Phase 1 Phase 2 |

Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 134 participants |
Allocation: | Randomized |
Intervention Model: | Sequential Assignment |
Intervention Model Description: | Participants will be randomized 1:1 to VMT vs. placebo. An initial pilot of 8 people will be enrolled and safety assessed (with unblinding and comparison of the arms) before proceeding with the larger study of 126 people, which will be analyzed separately. |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Prevention |
Official Title: | Vaginal Microbiota Transplant to Promote Lactobacillus-dominant Cervicovaginal Communities |
Actual Study Start Date : | April 22, 2021 |
Estimated Primary Completion Date : | December 2023 |
Estimated Study Completion Date : | June 2024 |

Arm | Intervention/treatment |
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Active Comparator: Vaginal microbiome transplant
Women in this group will be randomized to receive two doses of vaginal fluid from a healthy donor
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Biological: Vaginal microbiome transplant
Vaginal fluid from healthy donors Drug: Oral Metronidazole 500mg oral metronidazole twice daily for 7 days |
Placebo Comparator: Saline placebo
Women in this group will be randomized to receive two doses of sterile saline
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Drug: Oral Metronidazole
500mg oral metronidazole twice daily for 7 days Other: Sterile saline 700 uL of sterile saline placed in the vagina as a placebo intervention. |
- Presence of Lactobacillus-dominant microbiome [ Time Frame: 5 weeks after intervention ]Lactobacillus dominant = relative abundance of Lactobacillus in the vaginal microbial community > 50%
- Presence of Lactobacillus-dominant microbiome [ Time Frame: 1, 3, 7 weeks, 4 and 6 months after intervention ]Characterization of the vaginal microbial community using 16S rRNA sequencing
- Number of women reporting adverse events [ Time Frame: 1, 3, 5, 7 weeks, 4 and 6 months after intervention ]Report of adverse events

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Ages Eligible for Study: | 18 Years to 50 Years (Adult) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Premenopausal women, 18- 50 years old
- Abnormal Nugent score: > 3
- History of recurrent bacterial vaginosis (BV) (3 or more documented episodes in past 12 months)
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If participating in sexual activity that could lead to pregnancy, study participants must agree to use an effective contraceptive while actively participating in the protocol. At least one of the following methods MUST be used:
- Condoms (male or female), with or without a spermicidal agent
- Intrauterine device (IUD)
- Hormonal contraceptive (including oral pills, vaginal ring, implant, injection)
Exclusion Criteria:
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History of clinically significant vaginal, cervical, or uterine disease including but not limited to: cancer of the female reproductive tract, prior hysterectomy, high grade cervical dysplasia (CIN III), or diagnosed with cervicovaginal infection (with the exception of bacterial vaginosis) within the 30 days prior to the procedure.
- Allergy to metronidazole
- Use of investigational therapies or investigational vaccines within 90 days prior to study entry
- Use of any immunomodulatory agents within 30 days prior to study enrollment. Subject taking any of the following medications: systemic steroids (inhaled or nasal steroid therapy is permitted), interleukins, systemic interferons (e.g. local injection of interferon alpha for treatment of HPV is permitted) or systemic chemotherapy.
- History of coronary artery disease, myocardial infarction, COPD, chronic renal failure, decompensated cirrhosis, or any other condition that in the opinion of the investigator will compromise ability to participate in the study.
- History of abnormal pap smear within 12 months
- Insertion of levonorgestrel-containing IUD within 3 months prior to study entry
- Either breastfeeding or pregnant within 24 weeks prior to study entry
- Use of probiotics and prebiotics (supplements and products, oral or vaginal) within 30 days of the study. (NOTE: Oral yogurt with live cultures is allowed.)
- Routine use of oral antibiotics i.e. daily use for acne, Hidradenitis suppurativa, or regular use for post-coital urinary tract infection prophylaxis within the past 30 days.
- Taken non-metronidazole antibiotics in last 30 days
- BMI > 40

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): NCT04046900
Contact: Doug Kwon, MD, PhD | 857-268-7009 | dkwon@mgh.harvard.edu |
United States, Massachusetts | |
Massachusetts General Hospital | Recruiting |
Boston, Massachusetts, United States, 02114 | |
Contact: Caroline Mitchell, MD, MPH 617-724-2182 caroline.mitchell@mgh.harvard.edu | |
Principal Investigator: Caroline Mitchell, MD, MPH |
Principal Investigator: | Doug Kwon, MD, PhD | Massachusetts General Hospital |
Responsible Party: | Douglas Kwon, Principle Investigator, Massachusetts General Hospital |
ClinicalTrials.gov Identifier: | NCT04046900 |
Other Study ID Numbers: |
2019P001543 |
First Posted: | August 6, 2019 Key Record Dates |
Last Update Posted: | March 14, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Vaginosis, Bacterial Vaginal Diseases Genital Diseases, Female Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Urogenital Diseases Genital Diseases Bacterial Infections |
Bacterial Infections and Mycoses Infections Vaginitis Metronidazole Anti-Infective Agents Anti-Bacterial Agents Antiprotozoal Agents Antiparasitic Agents |