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HealthyPhase 1NCT01999231

Phase I Clinical Human Tolerability Study of Recombinant Mycobacterium Tuberculosis Allergen ESAT6-CFP10

A Phase 1 study testing ESAT6-CFP10 in people with Healthy, run by Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd..

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

In the tests, small sample of clinical study about Recombinant Mycobacterium Tuberculosis Allergen ESAT6-CFP10 ( Recombination EC Allergen) healthy adults was carried out. 24 healthy adults were included as study objects, they were randomly divided into four groups of different Recombinant Allergen EC dose (1, 5… Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
ESAT6-CFP10
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
32 participants
Where
No sites listed yet
Study dates
Sep 2013to Dec 2013
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Aged from 18 to 40 years old, age difference is not more than 10 years old within the same batch of healthy volunteers, the male to female ratio of cases is 1:1. Body mass index should be in the range of 20 to 27 Body Mass Index BMI: weight (Kg)/ height (M2);
  • Agreed to participate in the test and sign the informed consent;
  • Subjects should comply with the requirements of the clinical trial protocol and be followed;
  • Subjects have no history of TB (Tuberculosis)or family history of tuberculosis;
  • People have no pulmonary tuberculosis or extrapulmonary tuberculosis,respiratory symptom or systemic symptoms;
  • People have no tuberculosis focus after examination by X-ray chest radiograph and sputum bacilli;
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  • Subjects have no acute or chronic disease, acute infectious diseases, dermatoses or skin allergy caused by various reasons;
  • Physical condition: have no history of heart, liver, kidney, gastrointestinal tract, nervous system, or metabolic disturbance, etc. ECG, blood pressure, heart rate, respiratory status and lab test indexes including blood, urine, liver and kidney function, etc are all normal within 4 weeks before screening;
  • No close contacts of tuberculosis;
  • Subjects have not participated in other clinical drug trials or inoculated against other prophylactic and immune globulin in the nearly 3 months;
  • Temperature is normal;
  • Stop smoking, drinking and drinking contains caffeinated.

Who cannot join

  • Health people have close contacts of TB (Tuberculosis)patients, especially excreter in 3 weeks before selection;
  • Suffering from any other serious disease, e.g. during cancer treatment, autoimmune disease, progressive atherosclerosis, diabetes accompanied with complications, chronic obstructive pulmonary disease (COPD) needing oxygen therapy, acute or progressive liver or kidney disease, congestive heart failure, etc.;
  • People have history of allergy, convulsions, epilepsy, cerebropathy, neurological symptoms and signs;
  • Patients who have impaired or abnormal immune function, e.g. patients treated with immunosuppressor or immunopotentiator, received immunoglobulin preparation or blood products or plasma extraction outside the gastrointestinal tract in 3 months, human immunodeficiency virus or related diseases;
  • Acute febrile illness and infection;
  • Taking part in other clinic trials;
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  • Subjects have participated in any other clinical drug trials in 3 months before our clinical tests;
  • Allergic constitution, e.g. patients have allergic history to two or more kinds of drugs or food, or drug components;
  • Substance abuse and alcoholics ;
  • Pregnant or breast feeding women;
  • Mental or physical disability;
  • Informed leavers;
  • Any other cases that may influence the test evaluation.

About this study

In the tests, small sample of clinical study about Recombinant Mycobacterium Tuberculosis Allergen ESAT6-CFP10 ( Recombination EC Allergen) healthy adults was carried out.

24 healthy adults were included as study objects, they were randomly divided into four groups of different Recombinant Allergen EC dose (1, 5, 10μg/mL, maximum tolerated dose 20μg/mL, 6 person/dose) for single arm intradermal injection.

Read more

The main examination items :vital signs (breathing, heart rate, blood pressure, body temperature ) of each volunteer at 15min, 30min, 1h, 2h, 4h, 8h, 24h, 48h, 72h, 96h after injection, skin reactivity (redness and/or induration) diameter of injection sites,local reaction ( rash, pain, itching, and skin and mucous membranes ) ,a variety of adverse events,routine blood,routine urine, liver and kidney function, ECG and chest X-ray films before and 7 days after intradermal injection .

Preliminary evaluation of safety and tolerability of Recombinant Allergen EC applied in humans, which can provide a safe dosage range for phase II clinical study.

Read the detailed description

This clinical study adopts an open, randomized study methods to carry out Recombinant EC Allergen on small sample of healthy adults.

24 healthy adults were included as study objects, they were randomly divided into four groups of different Recombinant EC Allergen dose (1, 5, 10μg/mL, maximum tolerated dose 20μg/mL, 6 person/dose) for single arm intradermal injection, and set up two people as replacement for each group (one male and one female).

Intradermal injection into one third site of healthy subjects' left or right forearm palmaris with 0.1ml Recombinant EC Allergen for only one time.

The main examination items :vital signs (breathing, heart rate, blood pressure, body temperature ) of each volunteer at 15min, 30min, 1h, 2h, 4h, 8h, 24h, 48h, 72h, 96h after injection, skin reactivity (redness and/or induration) diameter of injection sites,local reaction ( rash, pain, itching, and skin and mucous membranes ) ,a variety of adverse events,routine blood,routine urine, liver and kidney function, ECG and chest X-ray films before and 7 days after intradermal injection .

In phaseⅠclinical study, each person can accept only one dose, After injection of the same dose of a volunteer group, be sure the next injection of a volunteer at 40 minutes interval. Different dose groups: the next dose test should be carried on in the case of no serious adverse events appear in 7days after the last one volunteer's injection in a former lower dose group.

Statistical analysis is performed using SAS9.3 software, and all analytic process is routinization.

Conditions
Healthy
Being tested
ESAT6-CFP10
Keywords
Safety, Tolerability, ESAT6, CFP10, skin test, diagnostic test

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ESAT6-CFP10Biological

    Also called Recombinant Mycobacterium Tuberculosis Allergen ESAT6-CFP10, EC

    32 healthy subjects who meet the standard of protocol are allocated four different groups according to dosages of ESAT6-CFP10 :1μg/ml ESAT6-CFP10、5μg/ml ESAT6-CFP10、10μg/ml ESAT6-CFP10、20μg/ml ESAT6-CFP10.Each dose group have six healthy subjects(three male and three female) , at the same time set up two people for substitute (one male and one female) . ESAT6-CFP10 administered intradermally by the mantoux injection technique. Each receives only one dosage in right or left arm .

Study groups in NCT01999231
Study groupRoleWhat they receive
1μg/ml ESAT6-CFP10ExperimentalThe 1μg/ml ESAT6-CFP10 is given 0.1ml alone to volunteers in the RIGHT or LEFT forearm according to a randomisation scheme.
Receives: Biological: ESAT6-CFP10
5μg/ml ESAT6-CFP10ExperimentalThe 5μg/ml ESAT6-CFP10 is given 0.1ml alone to volunteers in the RIGHT or LEFT forearm according to a randomisation scheme.
Receives: Biological: ESAT6-CFP10
10μg/ml ESAT6-CFP10ExperimentalThe 10μg/ml ESAT6-CFP10 is given 0.1ml alone to volunteers in the RIGHT or LEFT forearm according to a randomisation scheme.
Receives: Biological: ESAT6-CFP10
20μg/ml ESAT6-CFP10ExperimentalThe 20μg/ml ESAT6-CFP10 is given 0.1ml alone to volunteers in the RIGHT or LEFT forearm according to a randomisation scheme.
Receives: Biological: ESAT6-CFP10

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. the Cases of Adverse Events With Participant Injection of ESAT6-CFP10

    The main examination items :vital signs (breathing, heart rate, blood pressure, body temperature ) of each volunteer at 15min, 30min, 1h, 2h, 4h, 8h, 24h, 48h, 72h, 96h after injection, skin reactivity (redness and/or induration) of injection sites,local reaction ( rash, pain, itching, and skin mucous membranes ) ,a variety of adverse events,routine blood,routine urine, liver and kidney function, ECG and chest X-ray films before and 7 days after intradermal injection .

    Measured: within 7 days after the injections

Secondary outcomes (5)
  1. the Number of Participants Who Appear the Induration and/or Redness 2h After Application of ESAT6-CFP10

    We check the immune response( induration and/or redness) at 2h after application of ESAT6-CFP10 with vernier caliper. Using the standardized vernier caliper, measured transverse diameter and the longitudinal diameter of induration and/or redness in skin test parts if any participants appear induration and/or redness after application of ESAT6-CFP10.

    Measured: within 2h after application of ESAT6-CFP10

  2. the Number of Participants Who Appear the Induration and/or Redness 24h After Application of ESAT6-CFP10

    We check the immune response( induration and/or redness) at 24h after application of ESAT6-CFP10 with vernier caliper. Using the standardized vernier caliper, measured transverse diameter and the longitudinal diameter of induration and/or redness in skin test parts if any participants appear induration and/or redness after application of ESAT6-CFP10.

    Measured: 24h after application of ESAT6-CFP10

  3. the Number of Participants Who Appear the Induration and/or Redness 48h After Application of ESAT6-CFP10

    We check the immune response( induration and/or redness) at 48h after application of ESAT6-CFP10 with vernier caliper. Using the standardized vernier caliper, measured transverse diameter and the longitudinal diameter of induration and/or redness in skin test parts if any participants appear induration and/or redness after application of ESAT6-CFP10.

    Measured: 48h after application of ESAT6-CFP10

  4. the Number of Participants Who Appear the Induration and/or Redness 72h After Application of ESAT6-CFP10

    We check the immune response( induration and/or redness) at 72h after application of ESAT6-CFP10 with vernier caliper. Using the standardized vernier caliper, measured transverse diameter and the longitudinal diameter of induration and/or redness in skin test parts if any participants appear induration and/or redness after application of ESAT6-CFP10.

    Measured: 72h after application of ESAT6-CFP10

  5. the Number of Participants Who Appear the Induration and/or Redness 96h After Application of ESAT6-CFP10

    We check the immune response( induration and/or redness) at 96h after application of ESAT6-CFP10 with vernier caliper. Using the standardized vernier caliper, measured transverse diameter and the longitudinal diameter of induration and/or redness in skin test parts if any participants appear induration and/or redness after application of ESAT6-CFP10.

    Measured: 96h after application of ESAT6-CFP10

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Dec 2013 (estimated)
  2. Study startSep 2013
  3. Primary completionOct 2013
  4. Study completionDec 2013

Resources

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
Diagnosis
Allocation
Randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01999231
Sponsor's protocol ID
LTao-EC
Other IDs
LTao
Status last verified
Mar 2015
First submitted
4 Nov 2013
Last updated
31 Mar 2015
Data monitoring committee
No

Publications

  • van Pinxteren LA, Ravn P, Agger EM, Pollock J, Andersen P. Diagnosis of tuberculosis based on the two specific antigens ESAT-6 and CFP10. Clin Diagn Lab Immunol. 2000 Mar;7(2):155-60. doi: 10.1128/CDLI.7.2.155-160.2000.

    PubMed 10702486
  • Ravn P, Munk ME, Andersen AB, Lundgren B, Lundgren JD, Nielsen LN, Kok-Jensen A, Andersen P, Weldingh K. Prospective evaluation of a whole-blood test using Mycobacterium tuberculosis-specific antigens ESAT-6 and CFP-10 for diagnosis of active tuberculosis. Clin Diagn Lab Immunol. 2005 Apr;12(4):491-6. doi: 10.1128/CDLI.12.4.491-496.2005.

    PubMed 15817755
  • Brusasca PN, Colangeli R, Lyashchenko KP, Zhao X, Vogelstein M, Spencer JS, McMurray DN, Gennaro ML. Immunological characterization of antigens encoded by the RD1 region of the Mycobacterium tuberculosis genome. Scand J Immunol. 2001 Nov;54(5):448-52. doi: 10.1046/j.1365-3083.2001.00975.x.

    PubMed 11696195
  • Weldingh K, Andersen P. ESAT-6/CFP10 skin test predicts disease in M. tuberculosis-infected guinea pigs. PLoS One. 2008 Apr 23;3(4):e1978. doi: 10.1371/journal.pone.0001978.

    PubMed 18431468
  • Aagaard C, Govaerts M, Meikle V, Vallecillo AJ, Gutierrez-Pabello JA, Suarez-Guemes F, McNair J, Cataldi A, Espitia C, Andersen P, Pollock JM. Optimizing antigen cocktails for detection of Mycobacterium bovis in herds with different prevalences of bovine tuberculosis: ESAT6-CFP10 mixture shows optimal sensitivity and specificity. J Clin Microbiol. 2006 Dec;44(12):4326-35. doi: 10.1128/JCM.01184-06. Epub 2006 Sep 27.

    PubMed 17005738
  • Li F, Xu M, Zhou L, Xiong Y, Xia L, Fan X, Gu J, Pu J, Lu S, Wang G. Safety of Recombinant Fusion Protein ESAT6-CFP10 as a Skin Test Reagent for Tuberculosis Diagnosis: an Open-Label, Randomized, Single-Center Phase I Clinical Trial. Clin Vaccine Immunol. 2016 Sep 6;23(9):767-73. doi: 10.1128/CVI.00154-16. Print 2016 Sep.

    PubMed 27413070

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ESAT6-CFP10 in people with Healthy, run by Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd..

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 12 inclusion and 13 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 31 Mar 2015. Status can change between updates, so confirm with the study contact before making plans.

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?

Yes. Results are posted in the registry (first posted 31 Mar 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

the Cases of Adverse Events With Participant Injection of ESAT6-CFP10 (time frame: within 7 days after the injections). 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 NCT01999231, which also lists 6 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 31 Mar 2015.

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