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Safety and Efficacy of Thymic Peptides in the Treatment of Hospitalized COVID-19 Patients in Honduras

A Single-arm, Open-Label, Phase II Clinical Study to Evaluate the Safety and Efficacy of Thymic Peptides in the Treatment of Hospitalized COVID-19 Patients in Honduras

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04771013
Enrollment
22
Registered
2021-02-25
Start date
2021-02-10
Completion date
2021-05-14
Last updated
2022-02-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Keywords

SARS-CoV-2 Infection, COVID-19 Pandemic, 2019 Novel Coronavirus Disease, Thymic peptides, Thymus gland, Peptides, Honduras, Coronavirus Disease 2019, Coronavirus Disease-19, COVID-19 Virus Infection, 2019-nCoV Disease, 2019-nCoV Infection

Brief summary

This is a single-arm, open-label, phase II clinical study to evaluate the safety and efficacy of thymic peptides in the treatment of hospitalized COVID-19 patients in Honduras.

Detailed description

This study was approved and registered by the Dirección General de Vigilancia del Marco Normativo de la Secretaría de Salud de Honduras (General Directorate for Regulatory Framework Surveillance of the Ministry of Health of Honduras) the eight of February of 2021; enrollment began tenth of February of 2021. The study will analyze 23 clinical parameters, 9 laboratory studies besides complete blood count, chest radiography, time to response, adverse clinical outcomes, and hospital length of stay in 22 participants treated with a daily oral dose of 250 mg of lyophilized thymic peptides dissolved in 50 mL of water (one hour before or two hours after a meal) in addition to the standard treatment. A participant-level comparison based on registry data from Hospital de Santa Bárbara Integrado will be performed after propensity score matching. The Generic Assessment of Side Effects in Clinical Trials (GASE) will be applied in addition to monitoring of treatment-emergent adverse events.

Interventions

BIOLOGICALThymic peptides

250 mg oral daily dose of lyophilized thymic peptides dissolved in 50 mL of water, administered with an empty stomach.

Sponsors

Pontificia Universidad Catolica de Chile
CollaboratorOTHER
Universidad Católica de Honduras
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

A participant-level comparison based on registry data from the Hospital de Santa Bárbara Integrado will be performed after propensity score matching.

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Confirmed case of COVID-19 by viral nucleic acid (RNA) detection, viral antigen detection, or detection of antibodies to the virus. * Participants that require hospitalization under Honduran Ministry of Health Guidelines for Clinical Management of COVID-19 Adult Patients: Stage IIb, defined as a patient with or without risk factors that presents with warning signs (shortness of breath, tachypnea), and altered inflammatory parameters. * Participants that present with at least one of the following: oxygen saturation level below 94 percent; complete blood count showing lymphopenia, neutrophilia, or both; positive C-reactive protein; chest radiography or CT scan with ground-glass opacities. * Male or female at least 21 years old.

Exclusion criteria

* COVID-19 patients that do not require hospitalization under Honduran Ministry of Health Guidelines for Clinical Management of COVID-19 Adult Patients: phase IA (asymptomatic), phase IB (mild symptoms without risk factors), or phase IC (mild symptoms with risk factors). * Participants currently in other clinical trials evaluating experimental drugs. * Known history of allergic reactions to thymic peptides or calf thymus acid lysate derivatives. * Organ transplant recipients. * Women who are pregnant or breast feeding.

Design outcomes

Primary

MeasureTime frameDescription
Time to Participant RecoveryDuring hospitalization for up to 20 days.Measured in days to clinical recovery that will be defined as the first day, during the 20 days after enrollment, on which a patient met the criteria for category 1, 2, or 3 on the eight-category ordinal scale. The categories are as follows: 1, not hospitalized and no limitations of activities; 2, not hospitalized, with limitation of activities, home oxygen requirement, or both; 3, hospitalized, not requiring supplemental oxygen and no longer requiring ongoing medical care; 4, hospitalized, not requiring supplemental oxygen but requiring ongoing medical care (related to Covid-19 or to other medical conditions); 5, hospitalized, requiring any supplemental oxygen; 6, hospitalized, requiring noninvasive ventilation or use of high-flow oxygen devices; 7, hospitalized, receiving invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); and 8, death.
Number of Participants With Treatment Related Adverse Events as Assessed by the Common Terminology Criteria for Adverse Events Version 5.0Up to 20 daysNumber of participants who experience adverse events ≥ Grade 3, as defined by the Common Terminology Criteria for Adverse Events Version 5.0 (CTCAE v5.0).
Number of Participants With Treatment Related Side Effects as Assessed by the General Assessment of Side EffectsUp to 20 daysNumber of participants who experience severe side effects as defined by the General Assessment of Side Effects (GASE).

Secondary

MeasureTime frameDescription
Number of Participants That Died by Day 20Up to 20 daysNumber of participants that died due to any reason by day 20.

Countries

Honduras

Participant flow

Pre-assignment details

22 participants were enrolled in the intervention group. A participant-level comparison based on a control group by propensity score matching from registry data was performed. This accounts for the 22 patients in the arm of the historic control group. ClinicalTrials.gov Identifier: NCT04771013 MedRxiv: A nonrandomized phase 2 trial of oral thymic peptides in hospitalized patients with Covid-19. doi: https://doi.org/10.1101/2021.12.05.21267318

Participants by arm

ArmCount
Daily Oral Dose of Thymic Peptides
Patients will receive a daily oral dose of 250 mg of lyophilized thymic peptides dissolved in 50 mL of water (one hour before or two hours after a meal) in addition to the standard treatment, for up to 20 days or until medical discharge. Thymic peptides: 250 mg oral daily dose of lyophilized thymic peptides dissolved in 50 mL of water, administered with an empty stomach.
22
Historic Control Group
A participant-level comparison based on a control group by propensity score matching from registry data was performed. For the comparison group, registry data from June 2020 to February 2021 was considered, as standardization of Stage IIB therapeutic management to its current guideline in Honduras occurred on May 2020. Although highly controversial among the Honduran scientific community, guidelines approved by the Honduran Ministry of Health for the treatment of Covid-19 include the use of ivermectin, azithromycin, zinc, hydroxychloroquine or chloroquine, acetaminophen, ibuprofen, and oral disinfectants (sodium hypochlorite, hypochlorous acid, hydrogen peroxide, among others) for the initial phases of disease progression. On top of these, therapeutic options for patients presenting with pulmonary compromise before or during hospitalization for phase IIb include colchicine, dexamethasone or methylprednisolone, and anticoagulation (rivaroxaban, apixaban, heparin, or enoxaparin).
22
Total44

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath05
Overall StudyReferred to another hospital before day 2001
Overall StudyWithdrawal by Subject20

Baseline characteristics

CharacteristicDaily Oral Dose of Thymic PeptidesHistoric Control GroupTotal
Age, Continuous52 years
STANDARD_DEVIATION 16
57 years
STANDARD_DEVIATION 17
54 years
STANDARD_DEVIATION 16
Age, Customized
≤60 years
15 Participants12 Participants27 Participants
Age, Customized
61-64 years
2 Participants3 Participants5 Participants
Age, Customized
≥ 65 years
5 Participants7 Participants12 Participants
Coexisting conditions-Chronic obstructive pulmonary disease1 Participants1 Participants2 Participants
Coexisting conditions-Diabetes11 Participants3 Participants14 Participants
Coexisting conditions-Heart Failure0 Participants1 Participants1 Participants
Coexisting conditions-Hypertension7 Participants9 Participants16 Participants
Coexisting conditions-Obesity2 Participants4 Participants6 Participants
Coexisting conditions-Organ damage (other than lung)12 Participants15 Participants27 Participants
Comorbidities2 Comorbidities
STANDARD_DEVIATION 1
2 Comorbidities
STANDARD_DEVIATION 2
2 Comorbidities
STANDARD_DEVIATION 1
Heart rate distribution
111-130 beats/min
2 Participants2 Participants4 Participants
Heart rate distribution
51-90 beats/min
14 Participants10 Participants24 Participants
Heart rate distribution
91-110 beats/min
6 Participants10 Participants16 Participants
Median no. of days since symptom onset11.5 days10 days10.5 days
Oxygen saturation distribution
≤91%
19 Participants19 Participants38 Participants
Oxygen saturation distribution
92-93%
3 Participants3 Participants6 Participants
Race/Ethnicity, Customized
Mestizo
22 Participants22 Participants44 Participants
Region of Enrollment
Honduras
22 participants22 participants44 participants
Respiratory rate distribution
21-24 breaths/min
2 Participants3 Participants5 Participants
Respiratory rate distribution
≥ 25 breaths/min
20 Participants19 Participants39 Participants
SARS-CoV-2 positive test result22 Participants22 Participants44 Participants
Sex: Female, Male
Female
7 Participants9 Participants16 Participants
Sex: Female, Male
Male
15 Participants13 Participants28 Participants
Systolic blood pressure distribution 90-219 mmHg22 Participants22 Participants44 Participants
Temperature distribution
35.6-37.9 °C
19 Participants19 Participants38 Participants
Temperature distribution
38-39 °C
3 Participants2 Participants5 Participants
Temperature distribution
≥39.1 °C
0 Participants1 Participants1 Participants
WHO Clinical Progression Score of 5 at hospitalization22 Participants22 Participants44 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 225 / 22
other
Total, other adverse events
0 / 220 / 22
serious
Total, serious adverse events
0 / 225 / 22

Outcome results

Primary

Number of Participants With Treatment Related Adverse Events as Assessed by the Common Terminology Criteria for Adverse Events Version 5.0

Number of participants who experience adverse events ≥ Grade 3, as defined by the Common Terminology Criteria for Adverse Events Version 5.0 (CTCAE v5.0).

Time frame: Up to 20 days

Population: Only Treatment Related Adverse Event data related to mortality was collected from the Historic Control population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Daily Oral Dose of Thymic PeptidesNumber of Participants With Treatment Related Adverse Events as Assessed by the Common Terminology Criteria for Adverse Events Version 5.00 Participants
Historic Control GroupNumber of Participants With Treatment Related Adverse Events as Assessed by the Common Terminology Criteria for Adverse Events Version 5.05 Participants
Primary

Number of Participants With Treatment Related Side Effects as Assessed by the General Assessment of Side Effects

Number of participants who experience severe side effects as defined by the General Assessment of Side Effects (GASE).

Time frame: Up to 20 days

Population: Treatment Related Side Effects data not collected from the Historic Control population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Daily Oral Dose of Thymic PeptidesNumber of Participants With Treatment Related Side Effects as Assessed by the General Assessment of Side Effects0 Participants
Primary

Time to Participant Recovery

Measured in days to clinical recovery that will be defined as the first day, during the 20 days after enrollment, on which a patient met the criteria for category 1, 2, or 3 on the eight-category ordinal scale. The categories are as follows: 1, not hospitalized and no limitations of activities; 2, not hospitalized, with limitation of activities, home oxygen requirement, or both; 3, hospitalized, not requiring supplemental oxygen and no longer requiring ongoing medical care; 4, hospitalized, not requiring supplemental oxygen but requiring ongoing medical care (related to Covid-19 or to other medical conditions); 5, hospitalized, requiring any supplemental oxygen; 6, hospitalized, requiring noninvasive ventilation or use of high-flow oxygen devices; 7, hospitalized, receiving invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); and 8, death.

Time frame: During hospitalization for up to 20 days.

Population: Analyses were performed according to the intention-to-treat principle.

ArmMeasureValue (MEDIAN)
Daily Oral Dose of Thymic PeptidesTime to Participant Recovery6 days
Historic Control GroupTime to Participant Recovery12 days
Secondary

Number of Participants That Died by Day 20

Number of participants that died due to any reason by day 20.

Time frame: Up to 20 days

Population: The analysis assessed the number of patients that died in each arm by day 20.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Daily Oral Dose of Thymic PeptidesNumber of Participants That Died by Day 200 Participants
Historic Control GroupNumber of Participants That Died by Day 205 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026