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. 2021 Sep 7;28(40):55925–55951. doi: 10.1007/s11356-021-16280-5

Table 3.

The details of clinical trials of various Ayurvedic Rasayana drugs

Herb Study design Primary outcome CTRI details
Tinospora cordifolia (Guduchi) as single ingredient or in combination Prospective non-randomized open label controlled interventional study Incidence rate of COVID-19 infection CTRI/2020/06/025525
Randomized, parallel-group trial Comparative assessment of incidence of COVID-19 CTRI/2020/05/025488
Non-randomized, active controlled trial Comparative assessment of occurrence of COVID-19 infection CTRI/2020/05/025485
Non-randomized, multiple-arm trial Comparative assessment of occurrence of COVID-19 infection CTRI/2020/05/025385
Single-arm trial Clinical cure rate: time to get a negative status of COVID-19 CTRI/2020/05/025370
Single-arm trial Incidence of COVID-19-positive cases as confirmed by RT-PCR CTRI/2020/05/025213
Randomized, parallel-group trial Comparative assessment of occurrence of COVID-19 infection in healthy volunteers CTRI/2020/05/025088
Randomized, parallel-group trial Improvement in bala (physical and mental health) of an individual

CTRI/2020/05/025171

(part of whole regime/protocol)

Non-randomized, active controlled trial

Percentage of patients progressing to serious/critical stage of disease

Progress of disease as per clinical severity score

Number of days taken to test negative for COVID, total days to discharge from hospital

CTRI/2020/04/024882

(Guduchi and Piper longum and standard treatment)

Randomized, parallel-group trial Improvement in bala CTRI/2020/05/025178
Single-arm trial

Efficacy in boosting Vyadhikshamatwa and prevention against communicable diseases.

2. Will help in overcoming the anxiety level and stress of HCQs

CTRI/2020/05/025276

(multiple ingredient and haritki)

Randomized, parallel-group, active controlled trial

1. Mean time (days) for clinical recovery

2. Proportion of patients showing clinical recovery

CTRI/2020/06/025557 (Guduchi, Yastimadhu and Ayush 64)
Randomized, parallel-group, placebo- controlled trial Virological clearance as measured by RT-PCR of nasopharyngeal swab CTRI/2020/05/025273
Single-arm trial Episodes and severity of symptoms of respiratory tract infection (cold, sore throat, dry cough, breathlessness) CTRI/2020/04/024731
Ashwagandha Single arm trial Incidence of COVID-19- positive cases (as confirmed by RT-PCR)

CTRI/2020/05/025069

(Guduchi and Ashwagnadha and regime)

Randomized, parallel-group, placebo- controlled trial Virological clearance as measured by RT-PCR of nasopharyngeal swab CTRI/2020/05/025273 (Guduchi and Ashwagandha and regime
Randomized, parallel-group trial Comparative assessment of occurrence of COVID-19 infection CTRI/2020/05/025166
Non-randomized, active controlled trial Comparative assessment of occurrence of COVID-19 infection CTRI/2020/05/025429 (combination)
Randomized, parallel-group trial Efficacy in the management of mild and asymptomatic cases of COVID-19 patients CTRI/2020/05/025341
Single-arm trial

1. Efficacy in boosting Vyadhikshamatwa and prevention against communicable diseases.

2. Will help in overcoming the anxiety level and stress of HCQs

CTRI/2020/05/025398
Amla (Chyawanprash) Randomized, parallel-group trial

1. Comparative assessment of incidence of COVID-19

2. Comparative assessment of incidence of other non-COVID-19 infections

CTRI/2020/05/024981
Randomized, parallel-group trial Percentage of participants with SARS-CoV-2 positivity as estimated by RT-PCR CTRI/2020/05/025275