COVID-19NCT04950803
A Randomised-controlled Trial of an Oral Microbiome Immunity Formula in Recovered COVID-19 Patients
A study testing Microbiome immunity formula in people with COVID-19 and Probiotic, run by Chinese University of Hong Kong at 1 site in Hong Kong.
Trial summary
This study aims to evaluate the effectiveness of an oral microbiome immunity formula in modulating gut microbiota, enhancing immunity and reducing long-term complications and co-morbidities in patients who have recovered from COVID-19. Read more about this study
- Who is it for?
- Ages 18 years and older
- What is being tested?
- Microbiome immunity formula
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 448 participants
- Where
- 1 siteHong Kong
- Study dates
- 25 Jun 2021to 31 Dec 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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
- Individuals aged 18 and above;
- Subjects who are mentally capable to participate in the study and provide informed consent;
- Subjects who can communicate in Chinese or English;
- Subjects who are ambulatory and do not have difficulties travelling to the clinics for follow-up;
- Subjects who do not have plans to leave Hong Kong in the subsequent two years after recruitment; and
- Subjects who agree to give informed consent voluntarily.
Who cannot join
- Subjects who are unable to receive oral fluids;
- Subjects who have received surgery involving the intestine within past 30 days;
- Subjects who are pregnant or breastfeeding; and
- Subjects who are immunocompromised, e.g. on cancer treatment, bone marrow/organ transplant, immune deficiency, poorly controlled HIV/AIDS.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Randomised-controlled Trial of an Oral Microbiome Immunity Formula in Reducing Development of Long-term Co-morbidities in Recovered COVID-19 Patients
This study aims to evaluate the effectiveness of an oral microbiome immunity formula in modulating gut microbiota, enhancing immunity and reducing long-term complications and co-morbidities in patients who have recovered from COVID-19.
Read the detailed description
SARS-CoV-2, the cause of COVID-19, emerged as a new zoonotic pathogen of humans at the end of 2019 and rapidly developed into a global pandemic. It may develop severe or critical disease with respiratory failure requiring oxygen support and intensive care.
Natural infection by virus triggers an effective system immunity so that the host can resist or highly reduce the chance of re-infection.
In many cases, this protection can maintain a long period of time. However, the long-term immunities (over a year) and complications from the patients are not yet very clear. We found that COVID-19 survivors who have cleared the virus continued to have persistent altered gut microbiota and up to 80 percent had residue COVID-19 related symptoms including fatigue, difficulty in breathing, impaired memory and hair loss up to 6 months after discharge (LONG COVID-19).
Earlier studies from our CU Medicine have shown a link between altered gut microbiome and COVID-19 severity, and more patients who received a novel microbiome immunity formula (SIM01) achieved complete symptom resolution and developed neutralising antibody than those who did not (unpublished data). Research from the Faculty also reported that almost 40% of people in Hong Kong had significant gut dysbiosis especially in elderly and patients with diabetes, obesity or chronic diseases.
This study is a single-centre, triple-blind, randomized, placebo-controlled clinical trial that aims to evaluate the effectiveness of an oral microbiome immunity formula (SIM01) invented by the Chinese University of Hong Kong (CUHK) in modulating gut microbiota, enhancing immunity and reducing long-term complications and co-morbidities (e.g. sepsis, cardiopulmonary complications, metabolic syndrome, neuropsychiatric disorders) in patients who have recovered from COVID-19.
- Being tested
- Microbiome immunity formula, Active placebo
- Medical subject headings
- COVID-19
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Microbiome immunity formulaDietary supplement
Microbiome immunity formula contains probiotics blend (3Bifidobacteria, 20 billion CFU daily)
Active placeboDietary supplement
Active placebo contains active vitamin
| Study group | Role | What they receive |
|---|---|---|
| Active arm | Active comparator | Subjects will take microbiome immunity formula (SIM01) daily for 6 months Receives: Dietary Supplement: Microbiome immunity formula |
| Placebo arm | Placebo comparator | Subjects will take active vitamin daily for 6 months Receives: Dietary Supplement: Active placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Alleviation of symptoms or complications
Proportion of subjects with alleviation of symptoms or complication of post-COVID conditions within 6 months.
Measured: 6 months
Secondary outcomes (8)
Any comorbidities
A composite outcome of any comorbidities, including clinical manifestations of long-COVID, hospitalizations due to sepsis, cardiopulmonary complications, metabolic syndrome and neuropsychiatric disorders
Measured: 24 months
Increase in metabolic syndrome (MetS) score
a validated index computed from an analysis based on waist circumference, fasting triglycerides, fasting glucose, and systolic blood pressure, calculated in score (1-5), higher levels indicated higher probability of presence of metabolic syndrome
Measured: 24 months
Increase in other system-specific comorbidities
Increase in other system-specific comorbidities involving cardiovascular, gastrointestinal, liver, renal, genitourinary, haematological, and neurological systems
Measured: 24 months
Healthcare service utilization
The frequency of healthcare service (including clinics and Accident and Emergency) that the subject has attended
Measured: 24 months
Self-reported long-COVID-19 symptoms
Subjects will fill in a survey whether they have long-COVID-19 symptoms (e.g. cough, fatigue, etc) and grade the symptoms. The higher the score, the worse the outcome.
Measured: 24 months
Changes in Quality of life
Changes in Quality of life using visual analogue scale, score ranging 0-100. The higher the score, the better the outcome.
Measured: 48 months
Changes in faecal microbial and bacterial metabolites
Shotgun metagenomics and metabolomics sequencing of faecal samples at baseline and each visit will be used to generate serial gut microbial taxonomic and bacterial functional profiles.
Measured: 48 months
Blood immunity profiles
Inflammatory cytokines in plasma samples will be identified and quantified using human inflammation panel 1 (13-plex) of LEGENDplex
Measured: 24 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Jul 2021
- Study start25 Jun 2021
- Primary completion31 May 2027 (estimated)
- Study completion31 Dec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for COVID-19Studies of the same condition, open and under way.
- More trials run by Chinese University of Hong KongThe 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 N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 448 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Chinese University of Hong Kong
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Siew Chien NG, Chinese University of Hong Kong
- Investigators
- Siew Ng, Principal investigator, CUHK-M&T
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04950803
- Sponsor's protocol ID
- RECOVERY
- Status last verified
- Aug 2024
- First submitted
- 21 Jun 2021
- Last updated
- 22 Aug 2024
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, Zhang L, Fan G, Xu J, Gu X, Cheng Z, Yu T, Xia J, Wei Y, Wu W, Xie X, Yin W, Li H, Liu M, Xiao Y, Gao H, Guo L, Xie J, Wang G, Jiang R, Gao Z, Jin Q, Wang J, Cao B. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet. 2020 Feb 15;395(10223):497-506. doi: 10.1016/S0140-6736(20)30183-5. Epub 2020 Jan 24.
PubMed 31986264Guan WJ, Ni ZY, Hu Y, Liang WH, Ou CQ, He JX, Liu L, Shan H, Lei CL, Hui DSC, Du B, Li LJ, Zeng G, Yuen KY, Chen RC, Tang CL, Wang T, Chen PY, Xiang J, Li SY, Wang JL, Liang ZJ, Peng YX, Wei L, Liu Y, Hu YH, Peng P, Wang JM, Liu JY, Chen Z, Li G, Zheng ZJ, Qiu SQ, Luo J, Ye CJ, Zhu SY, Zhong NS; China Medical Treatment Expert Group for Covid-19. Clinical Characteristics of Coronavirus Disease 2019 in China. N Engl J Med. 2020 Apr 30;382(18):1708-1720. doi: 10.1056/NEJMoa2002032. Epub 2020 Feb 28.
PubMed 32109013Ngai JC, Ko FW, Ng SS, To KW, Tong M, Hui DS. The long-term impact of severe acute respiratory syndrome on pulmonary function, exercise capacity and health status. Respirology. 2010 Apr;15(3):543-50. doi: 10.1111/j.1440-1843.2010.01720.x. Epub 2010 Mar 19.
PubMed 20337995Li TS, Gomersall CD, Joynt GM, Chan DP, Leung P, Hui DS. Long-term outcome of acute respiratory distress syndrome caused by severe acute respiratory syndrome (SARS): an observational study. Crit Care Resusc. 2006 Dec;8(4):302-8.
PubMed 17227266Martin JE, Louder MK, Holman LA, Gordon IJ, Enama ME, Larkin BD, Andrews CA, Vogel L, Koup RA, Roederer M, Bailer RT, Gomez PL, Nason M, Mascola JR, Nabel GJ, Graham BS; VRC 301 Study Team. A SARS DNA vaccine induces neutralizing antibody and cellular immune responses in healthy adults in a Phase I clinical trial. Vaccine. 2008 Nov 25;26(50):6338-43. doi: 10.1016/j.vaccine.2008.09.026. Epub 2008 Sep 26.
PubMed 18824060Modjarrad K, Roberts CC, Mills KT, Castellano AR, Paolino K, Muthumani K, Reuschel EL, Robb ML, Racine T, Oh MD, Lamarre C, Zaidi FI, Boyer J, Kudchodkar SB, Jeong M, Darden JM, Park YK, Scott PT, Remigio C, Parikh AP, Wise MC, Patel A, Duperret EK, Kim KY, Choi H, White S, Bagarazzi M, May JM, Kane D, Lee H, Kobinger G, Michael NL, Weiner DB, Thomas SJ, Maslow JN. Safety and immunogenicity of an anti-Middle East respiratory syndrome coronavirus DNA vaccine: a phase 1, open-label, single-arm, dose-escalation trial. Lancet Infect Dis. 2019 Sep;19(9):1013-1022. doi: 10.1016/S1473-3099(19)30266-X. Epub 2019 Jul 24.
PubMed 31351922Perera RA, Mok CK, Tsang OT, Lv H, Ko RL, Wu NC, Yuan M, Leung WS, Chan JM, Chik TS, Choi CY, Leung K, Chan KH, Chan KC, Li KC, Wu JT, Wilson IA, Monto AS, Poon LL, Peiris M. Serological assays for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), March 2020. Euro Surveill. 2020 Apr;25(16):2000421. doi: 10.2807/1560-7917.ES.2020.25.16.2000421.
PubMed 32347204Bonifacius A, Tischer-Zimmermann S, Dragon AC, Gussarow D, Vogel A, Krettek U, Godecke N, Yilmaz M, Kraft ARM, Hoeper MM, Pink I, Schmidt JJ, Li Y, Welte T, Maecker-Kolhoff B, Martens J, Berger MM, Lobenwein C, Stankov MV, Cornberg M, David S, Behrens GMN, Witzke O, Blasczyk R, Eiz-Vesper B. COVID-19 immune signatures reveal stable antiviral T cell function despite declining humoral responses. Immunity. 2021 Feb 9;54(2):340-354.e6. doi: 10.1016/j.immuni.2021.01.008.
PubMed 33567252Rupp J, Dreo B, Gutl K, Fessler J, Moser A, Haditsch B, Schilcher G, Matzkies LM, Steinmetz I, Greinix H, Stradner MH. T Cell Phenotyping in Individuals Hospitalized with COVID-19. J Immunol. 2021 Apr 1;206(7):1478-1482. doi: 10.4049/jimmunol.2001034. Epub 2021 Feb 8.
PubMed 33558375Legros V, Denolly S, Vogrig M, Boson B, Siret E, Rigaill J, Pillet S, Grattard F, Gonzalo S, Verhoeven P, Allatif O, Berthelot P, Pelissier C, Thiery G, Botelho-Nevers E, Millet G, Morel J, Paul S, Walzer T, Cosset FL, Bourlet T, Pozzetto B. A longitudinal study of SARS-CoV-2-infected patients reveals a high correlation between neutralizing antibodies and COVID-19 severity. Cell Mol Immunol. 2021 Feb;18(2):318-327. doi: 10.1038/s41423-020-00588-2. Epub 2021 Jan 6.
PubMed 33408342Hillier TA, Rousseau A, Lange C, Lepinay P, Cailleau M, Novak M, Calliez E, Ducimetiere P, Balkau B; D.E.S.I.R. Cohort. Practical way to assess metabolic syndrome using a continuous score obtained from principal components analysis. Diabetologia. 2006 Jul;49(7):1528-35. doi: 10.1007/s00125-006-0266-8. Epub 2006 May 16.
PubMed 16752171DeMets DL, Lan KK. Interim analysis: the alpha spending function approach. Stat Med. 1994 Jul 15-30;13(13-14):1341-52; discussion 1353-6. doi: 10.1002/sim.4780131308.
PubMed 7973215Lau RI, Su Q, Lau ISF, Ching JYL, Wong MCS, Lau LHS, Tun HM, Mok CKP, Chau SWH, Tse YK, Cheung CP, Li MKT, Yeung GTY, Cheong PK, Chan FKL, Ng SC. A synbiotic preparation (SIM01) for post-acute COVID-19 syndrome in Hong Kong (RECOVERY): a randomised, double-blind, placebo-controlled trial. Lancet Infect Dis. 2024 Mar;24(3):256-265. doi: 10.1016/S1473-3099(23)00685-0. Epub 2023 Dec 7.
PubMed 38071990
Study at a glance
From the registry record, last updated by the sponsor on 22 Aug 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomised-controlled Trial of an Oral Microbiome Immunity Formula in Reducing Development of Long-term Co-morbidities in Recovered COVID-19 Patients
- ClinicalTrials.gov ID
- NCT04950803
- Acronym / sponsor ID
- RECOVERY
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 448 participants (estimated)
- Lead sponsor
- Chinese University of Hong KongUniversity, hospital or other
- Study start
- 25 Jun 2021 (actual)
- Primary completion
- 31 May 2027 (estimated)
- Study completion
- 31 Dec 2027 (estimated)
- First posted
- 6 Jul 2021 (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 study aims to evaluate the effectiveness of an oral microbiome immunity formula in modulating gut microbiota, enhancing immunity and reducing long-term complications and co-morbidities in patients who have recovered from COVID-19.
Detailed description
SARS-CoV-2, the cause of COVID-19, emerged as a new zoonotic pathogen of humans at the end of 2019 and rapidly developed into a global pandemic. It may develop severe or critical disease with respiratory failure requiring oxygen support and intensive care.
Natural infection by virus triggers an effective system immunity so that the host can resist or highly reduce the chance of re-infection.
In many cases, this protection can maintain a long period of time. However, the long-term immunities (over a year) and complications from the patients are not yet very clear. We found that COVID-19 survivors who have cleared the virus continued to have persistent altered gut microbiota and up to 80 percent had residue COVID-19 related symptoms including fatigue, difficulty in breathing, impaired memory and hair loss up to 6 months after discharge (LONG COVID-19).
Earlier studies from our CU Medicine have shown a link between altered gut microbiome and COVID-19 severity, and more patients who received a novel microbiome immunity formula (SIM01) achieved complete symptom resolution and developed neutralising antibody than those who did not (unpublished data). Research from the Faculty also reported that almost 40% of people in Hong Kong had significant gut dysbiosis especially in elderly and patients with diabetes, obesity or chronic diseases.
This study is a single-centre, triple-blind, randomized, placebo-controlled clinical trial that aims to evaluate the effectiveness of an oral microbiome immunity formula (SIM01) invented by the Chinese University of Hong Kong (CUHK) in modulating gut microbiota, enhancing immunity and reducing long-term complications and co-morbidities (e.g. sepsis, cardiopulmonary complications, metabolic syndrome, neuropsychiatric disorders) in patients who have recovered from COVID-19.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Active arm | Active comparator | Dietary Supplement: Microbiome immunity formulaSubjects will take microbiome immunity formula (SIM01) daily for 6 months |
| Placebo arm | Placebo comparator | Dietary Supplement: Active placeboSubjects will take active vitamin daily for 6 months |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Individuals aged 18 and above;
- Subjects who are mentally capable to participate in the study and provide informed consent;
- Subjects who can communicate in Chinese or English;
- Subjects who are ambulatory and do not have difficulties travelling to the clinics for follow-up;
- Subjects who do not have plans to leave Hong Kong in the subsequent two years after recruitment; and
Key exclusion criteria (4 listed)
- Subjects who are unable to receive oral fluids;
- Subjects who have received surgery involving the intestine within past 30 days;
- Subjects who are pregnant or breastfeeding; and
- Subjects who are immunocompromised, e.g. on cancer treatment, bone marrow/organ transplant, immune deficiency, poorly controlled HIV/AIDS.
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 |
|---|---|---|
| Microbiome immunity formulaMicrobiome immunity formula contains probiotics blend (3Bifidobacteria, 20 billion CFU daily) | Dietary supplement | Active arm |
| Active placeboActive placebo contains active vitamin | Dietary supplement | Placebo arm |
Primary outcome
Alleviation of symptoms or complications
Time frame: 6 months
Proportion of subjects with alleviation of symptoms or complication of post-COVID conditions within 6 months.
8 secondary outcomes
Any comorbidities
Time frame: 24 months
Increase in metabolic syndrome (MetS) score
Time frame: 24 months
Increase in other system-specific comorbidities
Time frame: 24 months
Healthcare service utilization
Time frame: 24 months
Self-reported long-COVID-19 symptoms
Time frame: 24 months
Changes in Quality of life
Time frame: 48 months
Changes in faecal microbial and bacterial metabolites
Time frame: 48 months
Blood immunity profiles
Time frame: 24 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Aug 2024.
- Background: PubMed 31986264Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, Zhang L, Fan G, Xu J, Gu X, Cheng Z, Yu T, Xia J, Wei Y, Wu W, Xie X, Yin W, Li H, Liu M, Xiao Y, Gao H, Guo L, Xie J, Wang G, Jiang R, Gao Z, Jin Q, Wang J, Cao B. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet. 2020 Feb 15;395(10223):497-506. doi: 10.1016/S0140-6736(20)30183-5. Epub 2020 Jan 24.
- Background: PubMed 32109013Guan WJ, Ni ZY, Hu Y, Liang WH, Ou CQ, He JX, Liu L, Shan H, Lei CL, Hui DSC, Du B, Li LJ, Zeng G, Yuen KY, Chen RC, Tang CL, Wang T, Chen PY, Xiang J, Li SY, Wang JL, Liang ZJ, Peng YX, Wei L, Liu Y, Hu YH, Peng P, Wang JM, Liu JY, Chen Z, Li G, Zheng ZJ, Qiu SQ, Luo J, Ye CJ, Zhu SY, Zhong NS; China Medical Treatment Expert Group for Covid-19. Clinical Characteristics of Coronavirus Disease 2019 in China. N Engl J Med. 2020 Apr 30;382(18):1708-1720. doi: 10.1056/NEJMoa2002032. Epub 2020 Feb 28.
- Background: PubMed 20337995Ngai JC, Ko FW, Ng SS, To KW, Tong M, Hui DS. The long-term impact of severe acute respiratory syndrome on pulmonary function, exercise capacity and health status. Respirology. 2010 Apr;15(3):543-50. doi: 10.1111/j.1440-1843.2010.01720.x. Epub 2010 Mar 19.
- Background: PubMed 17227266Li TS, Gomersall CD, Joynt GM, Chan DP, Leung P, Hui DS. Long-term outcome of acute respiratory distress syndrome caused by severe acute respiratory syndrome (SARS): an observational study. Crit Care Resusc. 2006 Dec;8(4):302-8.
- Background: PubMed 18824060Martin JE, Louder MK, Holman LA, Gordon IJ, Enama ME, Larkin BD, Andrews CA, Vogel L, Koup RA, Roederer M, Bailer RT, Gomez PL, Nason M, Mascola JR, Nabel GJ, Graham BS; VRC 301 Study Team. A SARS DNA vaccine induces neutralizing antibody and cellular immune responses in healthy adults in a Phase I clinical trial. Vaccine. 2008 Nov 25;26(50):6338-43. doi: 10.1016/j.vaccine.2008.09.026. Epub 2008 Sep 26.
- Background: PubMed 31351922Modjarrad K, Roberts CC, Mills KT, Castellano AR, Paolino K, Muthumani K, Reuschel EL, Robb ML, Racine T, Oh MD, Lamarre C, Zaidi FI, Boyer J, Kudchodkar SB, Jeong M, Darden JM, Park YK, Scott PT, Remigio C, Parikh AP, Wise MC, Patel A, Duperret EK, Kim KY, Choi H, White S, Bagarazzi M, May JM, Kane D, Lee H, Kobinger G, Michael NL, Weiner DB, Thomas SJ, Maslow JN. Safety and immunogenicity of an anti-Middle East respiratory syndrome coronavirus DNA vaccine: a phase 1, open-label, single-arm, dose-escalation trial. Lancet Infect Dis. 2019 Sep;19(9):1013-1022. doi: 10.1016/S1473-3099(19)30266-X. Epub 2019 Jul 24.
- Background: PubMed 32347204Perera RA, Mok CK, Tsang OT, Lv H, Ko RL, Wu NC, Yuan M, Leung WS, Chan JM, Chik TS, Choi CY, Leung K, Chan KH, Chan KC, Li KC, Wu JT, Wilson IA, Monto AS, Poon LL, Peiris M. Serological assays for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), March 2020. Euro Surveill. 2020 Apr;25(16):2000421. doi: 10.2807/1560-7917.ES.2020.25.16.2000421.
- Background: PubMed 33567252Bonifacius A, Tischer-Zimmermann S, Dragon AC, Gussarow D, Vogel A, Krettek U, Godecke N, Yilmaz M, Kraft ARM, Hoeper MM, Pink I, Schmidt JJ, Li Y, Welte T, Maecker-Kolhoff B, Martens J, Berger MM, Lobenwein C, Stankov MV, Cornberg M, David S, Behrens GMN, Witzke O, Blasczyk R, Eiz-Vesper B. COVID-19 immune signatures reveal stable antiviral T cell function despite declining humoral responses. Immunity. 2021 Feb 9;54(2):340-354.e6. doi: 10.1016/j.immuni.2021.01.008.
- Background: PubMed 33558375Rupp J, Dreo B, Gutl K, Fessler J, Moser A, Haditsch B, Schilcher G, Matzkies LM, Steinmetz I, Greinix H, Stradner MH. T Cell Phenotyping in Individuals Hospitalized with COVID-19. J Immunol. 2021 Apr 1;206(7):1478-1482. doi: 10.4049/jimmunol.2001034. Epub 2021 Feb 8.
- Background: PubMed 33408342Legros V, Denolly S, Vogrig M, Boson B, Siret E, Rigaill J, Pillet S, Grattard F, Gonzalo S, Verhoeven P, Allatif O, Berthelot P, Pelissier C, Thiery G, Botelho-Nevers E, Millet G, Morel J, Paul S, Walzer T, Cosset FL, Bourlet T, Pozzetto B. A longitudinal study of SARS-CoV-2-infected patients reveals a high correlation between neutralizing antibodies and COVID-19 severity. Cell Mol Immunol. 2021 Feb;18(2):318-327. doi: 10.1038/s41423-020-00588-2. Epub 2021 Jan 6.
- Background: PubMed 16752171Hillier TA, Rousseau A, Lange C, Lepinay P, Cailleau M, Novak M, Calliez E, Ducimetiere P, Balkau B; D.E.S.I.R. Cohort. Practical way to assess metabolic syndrome using a continuous score obtained from principal components analysis. Diabetologia. 2006 Jul;49(7):1528-35. doi: 10.1007/s00125-006-0266-8. Epub 2006 May 16.
- Background: PubMed 7973215DeMets DL, Lan KK. Interim analysis: the alpha spending function approach. Stat Med. 1994 Jul 15-30;13(13-14):1341-52; discussion 1353-6. doi: 10.1002/sim.4780131308.
- WHO websiteLink provided by the sponsor.
- Hong Kong Government websiteLink provided by the sponsor.
- Quality of Life and Long-term Outcomes After Hospitalization for COVID-19.Link provided by the sponsor.
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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.
Siew Ng principal investigator
CUHK-M&T
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Microbiome immunity formula in people with COVID-19 and Probiotic, run by Chinese University of Hong Kong at 1 site in Hong Kong.
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 6 inclusion and 4 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: under way, not looking for participants, as of the sponsor's last update on 22 Aug 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 Hong Kong. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
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?
Alleviation of symptoms or complications (time frame: 6 months). 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 NCT04950803, which also lists 13 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 22 Aug 2024.