Advanced Renal Cell CarcinomaPhase 1NCT03829111
CBM588, Nivolumab, and Ipilimumab in Treating Patients With Stage IV or Advanced Kidney Cancer
A Phase 1 study testing Clostridium butyricum CBM 588 Probiotic Strain, Ipilimumab and Nivolumab in people with Advanced Renal Cell Carcinoma and Clear Cell Renal Cell Carcinoma, run by City of Hope Medical Center at 1 site in United States.
Trial summary
This phase I trial studies how well CBM588 works when given together with nivolumab and ipilimumab in treating patients with kidney cancer that is stage IV or has spread to other places in the body (advanced). CBM588 is a probiotic that may help to increase the effect of immunotherapy. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Advanced Renal Cell Carcinoma, Clear Cell Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma
- What is being tested?
- Clostridium butyricum CBM 588 Probiotic Strain, Ipilimumab and Nivolumab
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteUnited States
- Study dates
- 14 May 2019to 13 Dec 2023
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Be willing and able to provide informed consent for the trial
- Histological confirmation of RCC with a clear-cell component
- Advanced (not amenable to curative surgery or radiation therapy) or metastatic (American Joint Committee on Cancer [AJCC] stage IV) RCC
- Intermediate or poor risk disease by International Metastatic RCC Database Consortium (IMDC) classification
- No prior systemic therapy for RCC with the following exception:
- One prior adjuvant or neoadjuvant therapy for completely resectable RCC if such therapy did not include an agent that targets PD-1 or PD-L1 and if recurrence occurred at least 6 months after the last dose of adjuvant or neoadjuvant therapy
Show all 15Show fewer
- Eastern Cooperative Oncology Group (ECOG) performance status < 2
- Measurable disease as per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
- Any ethnicity or race
- Calculated creatinine clearance >= 30 milliliters per minute (mL/min) per the Cockcroft and Gault formula or serum creatinine < 1.5 x upper limit of normal (ULN)
- Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 3 x ULN (< 5 x ULN if liver metastases are present)
- Total bilirubin < 1.5 x ULN (except subjects with Gilbert syndrome, who can have total bilirubin up to 3.0 mg/dL)
- White blood cells (WBC) > 2,000/mm^3
- Neutrophils > 1,500/mm^3
- Platelets > 100,000/mm^3
Who cannot join
- Presence of untreated brain metastases. Patients with treated brain metastases must be stable for 4 weeks after completion of treatment and have documented stability on pre-study imaging. Patients must have no clinical symptoms from brain metastases and have no requirement for systemic corticosteroids amounting to > 10 mg/day of prednisone or its equivalent for at least 2 weeks prior to first dose of study drug. Patients with known leptomeningeal metastases are excluded, even if treated
- Not recovered to =< grade 1 toxicities related to any prior therapy before administration of study drug
- Favorable risk disease by IMDC classification
- Prior treatment with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, or anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways
- Any active or recent history of a known or suspected autoimmune disease or recent history of a syndrome that required systemic corticosteroids (> 10 mg daily prednisone equivalent) or immunosuppressive medications except for syndromes which would not be expected to recur in the absence of an external trigger. Subjects with vitiligo or type I diabetes mellitus or residual hypothyroidism due to autoimmune thyroiditis only requiring hormone replacement are permitted to enroll
- Active interstitial lung disease (ILD)/pneumonitis or history of ILD/pneumonitis requiring treatment with systemic steroids
Show all 20Show fewer
- Baseline pulse oximetry less than 92% "on room air"
- Current use, or intent to use, probiotics, yogurt or bacterial fortified foods during the period of treatment
- Any condition requiring systemic treatment with corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days prior to first dose of study drug. Inhaled steroids and adrenal replacement steroid doses > 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease
- Uncontrolled adrenal insufficiency
- Known medical condition (e.g., a condition associated with diarrhea or acute diverticulitis) that, in the investigator's opinion, would increase the risk associated with study participation or study drug administration or interfere with the interpretation of safety results
- Not recovered to =< grade 1 toxicities related to any prior therapy before administration of study drug
- Women who are pregnant or breastfeeding
- History of myocarditis or congestive heart failure (as defined by New York Heart Association functional classification III or IV), as well as unstable angina, serious uncontrolled cardiac arrhythmia, uncontrolled infection, or myocardial infarction 6 months prior to study entry
- White blood cells (WBC) < 2,000/mm^3
- Neutrophils < 1,500/mm^3
- Platelets < 100,000/mm^3
- Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) > 3 x upper limit of normal (ULN) (> 5 x ULN if liver metastases are present)
- Total bilirubin > 1.5 x ULN (except subjects with Gilbert syndrome, who can have total bilirubin 3.0 mg/dL)
- Calculated creatinine clearance < 30 millimeters per minute (mL/min) per the Cockcroft and Gault formula or serum creatinine > 1.5 x upper limit of normal (ULN)
Trial locations and contacts
1 site in 1 country.
United States1 site
City of Hope Medical Center
Duarte, California, 91010
About this study
Official title: Pilot Study to Evaluate the Biologic Effect of CBM588 in Combination With Nivolumab/Ipilimumab for Patients With Metastatic Renal Cell Carcinoma
This phase I trial studies how well CBM588 works when given together with nivolumab and ipilimumab in treating patients with kidney cancer that is stage IV or has spread to other places in the body (advanced). CBM588 is a probiotic that may help to increase the effect of immunotherapy. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving CBM588, nivolumab, and ipilimumab may work better in treating patients with kidney cancer.
Read the detailed description
PRIMARY OBJECTIVES:
- To determine the effect of clostridium butyricum CBM 588 probiotic strain (CBM588) (in combination with nivolumab/ipilimumab) on the gut microbiome in patients with metastatic renal cell carcinoma (mRCC).
SECONDARY OBJECTIVES:
- To evaluate the effect of CBM588 on the clinical efficacy of the nivolumab/ipilimumab combination.
II. To assess the effect of CBM588 on systemic immunomodulation of the nivolumab/ipilimumab combination in patients with mRCC.
III. To assess the effect of CBM588 on toxicities such as diarrhea and nausea using Common Terminology Criteria for Adverse Events (CTCAE) version (v) 5 criteria with the nivolumab/ipilimumab combination in patients with mRCC.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients receive nivolumab intravenously (IV) over 30 minutes and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, patients receive nivolumab IV over 30 minutes on day 1. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
ARM II: Patients receive clostridium butyricum CBM 588 probiotic strain orally (PO) twice daily (BID), nivolumab IV over 30 minutes on day 1, and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, treatment with clostridium butyricum CBM 588 probiotic strain and nivolumab repeats every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days and periodically thereafter.
- Conditions
- Advanced Renal Cell Carcinoma, Clear Cell Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma, Stage III Renal Cell Cancer AJCC v8, Stage IV Renal Cell Cancer AJCC v8, Unresectable Renal Cell Carcinoma
- Being tested
- Clostridium butyricum CBM 588 Probiotic Strain, Ipilimumab, Nivolumab
- Medical subject headings
- Carcinoma, Renal Cell
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Clostridium butyricum CBM 588 Probiotic StrainDrug
Also called C. butyricum CBM 588 Probiotic Strain, C. butyricum MIYAIRI Strain, C. butyricum Strain MIYAIRI 588, CBM 588
Given PO
IpilimumabBiological
Also called Anti-Cytotoxic T-Lymphocyte-Associated Antigen-4 Monoclonal Antibody, BMS-734016, MDX-010, MDX-CTLA4
Given IV
NivolumabBiological
Also called BMS-936558, MDX-1106, NIVO, ONO-4538
Given IV
| Study group | Role | What they receive |
|---|---|---|
| Arm I (nivolumab, ipilimumab) | Active comparator | Patients receive nivolumab IV over 30 minutes and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, patients receive nivolumab IV over 30 minutes on day 1. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Receives: Biological: Ipilimumab; Biological: Nivolumab |
| Arm II (CBM588, nivolumab, ipilimumab) | Experimental | Patients receive clostridium butyricum CBM 588 probiotic strain PO BID, nivolumab IV over 30 minutes on day 1, and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, treatment with clostridium butyricum CBM 588 probiotic strain and nivolumab repeats every 28 days in the absence of disease progression or unacceptable toxicity. Receives: Drug: Clostridium butyricum CBM 588 Probiotic Strain; Biological: Ipilimumab; Biological: Nivolumab |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Bifidobacterium composition of stool
Will be assessed for patients on both arms.
Measured: Baseline up to week 12
Secondary outcomes (3)
Change in Shannon index
Using translational methods, will compute the Shannon index at baseline for a comparison of microbial diversity.
Measured: Baseline up to week 12
Best overall response
Will be evaluated in this study using the new international criteria proposed by the revised Response Evaluation Criteria in Solid Tumors (RECIST). The association between treatment arm and overall response as per RECIST criteria (response observed versus [vs] not observed) will be examined using Fisher's exact test.
Measured: Up to 2 years
Progression-free survival (PFS)
The difference in progression free survival across the two groups will be explored graphically using Kaplan-Meier survival plots. Median PFS time for each of the two arms will be reported and Cox proportional hazards model will be used to estimate the hazard ratio and its confidence interval.
Measured: From enrollment to progression, assessed up to 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Feb 2019
- Study start14 May 2019
- Primary completion13 Dec 2023
- Study completion13 Dec 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Advanced Renal Cell CarcinomaStudies of the same condition, open and under way.
- More trials run by City of Hope Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- City of Hope Medical Center
- Sponsor type
- University, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Sumanta K Pal, Principal investigator, City of Hope Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03829111
- Sponsor's protocol ID
- 18523
- Other IDs
- NCI-2019-00248, 18523, P30CA033572
- Status last verified
- Jul 2024
- First submitted
- 1 Feb 2019
- Last updated
- 3 Jul 2024
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Publications
Villemin C, Six A, Neville BA, Lawley TD, Robinson MJ, Bakdash G. The heightened importance of the microbiome in cancer immunotherapy. Trends Immunol. 2023 Jan;44(1):44-59. doi: 10.1016/j.it.2022.11.002. Epub 2022 Dec 1.
PubMed 36464584Dizman N, Meza L, Bergerot P, Alcantara M, Dorff T, Lyou Y, Frankel P, Cui Y, Mira V, Llamas M, Hsu J, Zengin Z, Salgia N, Salgia S, Malhotra J, Chawla N, Chehrazi-Raffle A, Muddasani R, Gillece J, Reining L, Trent J, Takahashi M, Oka K, Higashi S, Kortylewski M, Highlander SK, Pal SK. Nivolumab plus ipilimumab with or without live bacterial supplementation in metastatic renal cell carcinoma: a randomized phase 1 trial. Nat Med. 2022 Apr;28(4):704-712. doi: 10.1038/s41591-022-01694-6. Epub 2022 Feb 28.
PubMed 35228755
Study at a glance
From the registry record, last updated by the sponsor on 3 Jul 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pilot Study to Evaluate the Biologic Effect of CBM588 in Combination With Nivolumab/Ipilimumab for Patients With Metastatic Renal Cell Carcinoma
- ClinicalTrials.gov ID
- NCT03829111
- Acronym / sponsor ID
- 18523
- Conditions
- Advanced Renal Cell Carcinoma, Clear Cell Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma, Stage III Renal Cell Cancer AJCC v8, Stage IV Renal Cell Cancer AJCC v8, Unresectable Renal Cell Carcinoma
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- City of Hope Medical CenterUniversity, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Study start
- 14 May 2019 (actual)
- Primary completion
- 13 Dec 2023 (actual)
- Study completion
- 13 Dec 2023 (actual)
- First posted
- 4 Feb 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This phase I trial studies how well CBM588 works when given together with nivolumab and ipilimumab in treating patients with kidney cancer that is stage IV or has spread to other places in the body (advanced). CBM588 is a probiotic that may help to increase the effect of immunotherapy. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving CBM588, nivolumab, and ipilimumab may work better in treating patients with kidney cancer.
Detailed description
PRIMARY OBJECTIVES:
- To determine the effect of clostridium butyricum CBM 588 probiotic strain (CBM588) (in combination with nivolumab/ipilimumab) on the gut microbiome in patients with metastatic renal cell carcinoma (mRCC).
SECONDARY OBJECTIVES:
- To evaluate the effect of CBM588 on the clinical efficacy of the nivolumab/ipilimumab combination.
II. To assess the effect of CBM588 on systemic immunomodulation of the nivolumab/ipilimumab combination in patients with mRCC.
III. To assess the effect of CBM588 on toxicities such as diarrhea and nausea using Common Terminology Criteria for Adverse Events (CTCAE) version (v) 5 criteria with the nivolumab/ipilimumab combination in patients with mRCC.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients receive nivolumab intravenously (IV) over 30 minutes and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, patients receive nivolumab IV over 30 minutes on day 1. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
ARM II: Patients receive clostridium butyricum CBM 588 probiotic strain orally (PO) twice daily (BID), nivolumab IV over 30 minutes on day 1, and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, treatment with clostridium butyricum CBM 588 probiotic strain and nivolumab repeats every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days and periodically thereafter.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm I (nivolumab, ipilimumab) | Active comparator | Biological: Ipilimumab, Biological: NivolumabPatients receive nivolumab IV over 30 minutes and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, patients receive nivolumab IV over 30 minutes on day 1. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. |
| Arm II (CBM588, nivolumab, ipilimumab) | Experimental | Drug: Clostridium butyricum CBM 588 Probiotic Strain, Biological: Ipilimumab, Biological: NivolumabPatients receive clostridium butyricum CBM 588 probiotic strain PO BID, nivolumab IV over 30 minutes on day 1, and ipilimumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Beginning in cycle 5, treatment with clostridium butyricum CBM 588 probiotic strain and nivolumab repeats every 28 days in the absence of disease progression or unacceptable toxicity. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (15 listed)
- Be willing and able to provide informed consent for the trial
- Histological confirmation of RCC with a clear-cell component
- Advanced (not amenable to curative surgery or radiation therapy) or metastatic (American Joint Committee on Cancer [AJCC] stage IV) RCC
- Intermediate or poor risk disease by International Metastatic RCC Database Consortium (IMDC) classification
- No prior systemic therapy for RCC with the following exception:
Key exclusion criteria (20 listed)
- Presence of untreated brain metastases. Patients with treated brain metastases must be stable for 4 weeks after completion of treatment and have documented stability on pre-study imaging. Patients must have no clinical symptoms from brain metastases and have no requirement for systemic corticosteroids amounting to > 10 mg/day of prednisone or its equivalent for at least 2 weeks prior to first dose of study drug. Patients with known leptomeningeal metastases are excluded, even if treated
- Favorable risk disease by IMDC classification
- Prior treatment with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, or anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways
- Any active or recent history of a known or suspected autoimmune disease or recent history of a syndrome that required systemic corticosteroids (> 10 mg daily prednisone equivalent) or immunosuppressive medications except for syndromes which would not be expected to recur in the absence of an external trigger. Subjects with vitiligo or type I diabetes mellitus or residual hypothyroidism due to autoimmune thyroiditis only requiring hormone replacement are permitted to enroll
- Active interstitial lung disease (ILD)/pneumonitis or history of ILD/pneumonitis requiring treatment with systemic steroids
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Clostridium butyricum CBM 588 Probiotic StrainAlso: C. butyricum CBM 588 Probiotic Strain, C. butyricum MIYAIRI Strain, C. butyricum Strain MIYAIRI 588, CBM 588Given PO | Drug | Arm II (CBM588, nivolumab, ipilimumab) |
| IpilimumabAlso: Anti-Cytotoxic T-Lymphocyte-Associated Antigen-4 Monoclonal Antibody, BMS-734016, MDX-010, MDX-CTLA4Given IV | Biological | Arm I (nivolumab, ipilimumab), Arm II (CBM588, nivolumab, ipilimumab) |
| NivolumabAlso: BMS-936558, MDX-1106, NIVO, ONO-4538Given IV | Biological | Arm I (nivolumab, ipilimumab), Arm II (CBM588, nivolumab, ipilimumab) |
Primary outcome
Change in Bifidobacterium composition of stool
Time frame: Baseline up to week 12
Will be assessed for patients on both arms.
3 secondary outcomes
Change in Shannon index
Time frame: Baseline up to week 12
Best overall response
Time frame: Up to 2 years
Progression-free survival (PFS)
Time frame: From enrollment to progression, assessed up to 2 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Jul 2024.
- Derived from this study: PubMed 36464584Villemin C, Six A, Neville BA, Lawley TD, Robinson MJ, Bakdash G. The heightened importance of the microbiome in cancer immunotherapy. Trends Immunol. 2023 Jan;44(1):44-59. doi: 10.1016/j.it.2022.11.002. Epub 2022 Dec 1.
- Derived from this study: PubMed 35228755Dizman N, Meza L, Bergerot P, Alcantara M, Dorff T, Lyou Y, Frankel P, Cui Y, Mira V, Llamas M, Hsu J, Zengin Z, Salgia N, Salgia S, Malhotra J, Chawla N, Chehrazi-Raffle A, Muddasani R, Gillece J, Reining L, Trent J, Takahashi M, Oka K, Higashi S, Kortylewski M, Highlander SK, Pal SK. Nivolumab plus ipilimumab with or without live bacterial supplementation in metastatic renal cell carcinoma: a randomized phase 1 trial. Nat Med. 2022 Apr;28(4):704-712. doi: 10.1038/s41591-022-01694-6. Epub 2022 Feb 28.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sumanta K Pal principal investigator
City of Hope Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Clostridium butyricum CBM 588 Probiotic Strain, Ipilimumab and Nivolumab in people with Advanced Renal Cell Carcinoma and Clear Cell Renal Cell Carcinoma, run by City of Hope Medical Center at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 15 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Bifidobacterium composition of stool (time frame: Baseline up to week 12). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03829111, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jul 2024.