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The effect of Esmolol before cardioplegia and as a combination in cardioplegia on biochemical markers of myocardial injury in patients undergoing coronary artery bypass graft surgery

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History
# Registration date Revision Id
4 2021-03-24, 1400/01/04 176331
3 2021-01-26, 1399/11/07 169518
2 2020-10-18, 1399/07/27 162171
1 2019-07-26, 1398/05/04 98129
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  • Protocol summary

    Use of osmolol before cardioplegia and as a cardioplegia to reduce myocardial injury
    Use of esmolol in the cardioplegic solution for reducing myocardial injury in patients with CABG
    استفاده از اسمولول قبل از کاردیوپلژی و به عنوان کاردیوپلژی جهت کاهش آسیب به میوکارد
    استفاده از اسمولول در محلول کاردیوپلژیک جهت کاهش آسیب به میوکارد در عمل جراحی بای پس عروق کرونر
    Two arm parallel group randomised trial with blinded postoperative care and outcome assessment
    randomized double-blinded placebo-controled clinical trial
    کارآزمایی بالینی دارای گروه کنترل، با گروه های موازی ، دو سویه کور ، تصادفی شده
    کارآزمایی بالینی تصادفی شده، دوسوکور دارای گروه کنترل
    chamran Hospital
    Chamran Heart Complex of Isfahan Univerdsity of Medical Sciences
    Having surgery just by coronary artery bypass Age over 18 years Left ventricular Ejection fraction between 45-60% Left ventricle end diastole Diameter (LVEDD) less than 60 mm pump time less than 180 minutes Cross Clamp Aorta time less than 90 minutes
    Having surgery just by coronary artery bypass Left ventricular Ejection fraction between 45-60% Left ventricle end diastole Diameter (LVEDD) less than 60 mm pump time less than 180 minutes Cross Clamp Aorta time less than 90 minutes
    داشتن عمل جراحی صرفا بای پس عروق کرونری سن بالای 18 سال کسر تخلیه ای بین 45 تا 60درصد قطر دیواره بطن چپ در پایان دیاستول(LVEED) کمتر از 60 میلی متر طول پمپ تایم کمتر از 180 دقیقه طول کلامپ آئورت کمتر از 90 دقیقه
    داشتن عمل جراحی صرفا بای پس عروق کرونری کسر تخلیه ای بین 45 تا 60درصد قطر دیواره بطن چپ در پایان دیاستول(LVEED) کمتر از 60 میلی متر طول پمپ تایم کمتر از 180 دقیقه طول کلامپ آئورت کمتر از 90 دقیقه
    the patient undergoing cabg
    esmolol in the cardioplegic solution for the intervention group and the routine cardioplegic solution for the control group.
    بیماران تحت جراحی بای پس عروق کرونری
    استفاده از اسمولول در محلول کاردیوپلژیک برای گروه مداخله و استفاده از محلول کاردیوپلژیک معمولی و روتین برای گروه کنترل

  • General information

    18
    empty
    Year
    empty
    No
    Yes
    Not randomized
    Randomized
    1
    Other
    Parallel
    Treatment
    Supportive
    60
    300
    empty
    265
    empty
    2018-08-23, 1397/06/01
    empty
    2020-06-21, 1399/04/01
    empty
    2020-08-22, 1399/06/01
    empty
    The trial protocol has been updated due to the investigator's wishes in order to improve the quality of trial design and conduction methodology.
    empty
    یکسری از بخشها نیاز به تغییر داشته و همچنین کارآزمایی به روش بهتری انجام شد که برونداد بهتری داشته باشد
    Having surgery just by coronary artery bypass
    Age over 18 years
    Left ventricular Ejection fraction between 45-60%
    Left ventricle end diastole Diameter (LVEDD) less than 60 mm
    pump time less than 180 minutes
    Cross Clamp Aorta time less than 90 minutes
    Having surgery just by coronary artery bypass
    Left ventricular Ejection fraction between 45-60%
    Left ventricle end diastole Diameter (LVEDD) less than 60 mm
    Pump time less than 180 minutes
    Cross Clamp Aorta time less than 90 minutes
    داشتن عمل جراحی صرفا بای پس عروق کرونری
    سن بالای 18 سال
    کسر تخلیه ای بین 45 تا 60درصد
    قطر دیواره بطن چپ در پایان دیاستول(LVEED) کمتر از 60 میلی متر
    طول پمپ تایم کمتر از 180 دقیقه
    طول کلامپ آئورت کمتر از 90 دقیقه
    داشتن عمل جراحی صرفا بای پس عروق کرونری
    کسر تخلیه ای بین 45 تا 60درصد
    قطر دیواره بطن چپ در پایان دیاستول(LVEED) کمتر از 60 میلی متر
    طول پمپ تایم کمتر از 180 دقیقه
    طول کلامپ آئورت کمتر از 90 دقیقه
    History of previously inappropriate reaction to Esmolol
    Prescribing Esmolol over the past 30 days
    Emergency operation
    Participate in other studies
    History of previously inappropriate reaction to Esmolol
    Prescribing Esmolol over the past 30 days
    Emergency operation
    Participate in other studies
    any confirmed arrhythmia or consuming any anti-arrhythmic agents
    severe systemic diseases (including any pulmonary, hepatic, renal, and musculoskeletal diseases or immune system illnesses)
    diabetic patients consuming any oral hypoglycemic agents
    reduction of heart rate to less than 50 beats per minute or systolic blood pressure to less than 90 mmHg when injecting esmolol during the surgery
    pumping time > 120 minutes
    aortic cross-clamping > 90 minutes
    intra-operative patient’s death
    سابقه واکنش نامناسب قبلی به اسمولول
    تجویز اسمولول طی 30 روز گذشته
    عمل اورژانسی
    شرکت در مطالعات دیگر
    سابقه واکنش نامناسب قبلی به اسمولول
    تجویز اسمولول طی 30 روز گذشته
    عمل اورژانسی
    شرکت در مطالعات دیگر
    داشتن هرگونه آریتمی یا داروی ضد آریتمی
    بیماری سیستمیک جدید از قبیل مشکلات ریوی، کبدی، کلیوی، مشکلات اسکلتی-عضلانی، ایمنی
    بیماران دیابتی و مصرف کننده داروهای ضد دیابت
    کاهش ضربان قلب به زیر 50 و فشار خون سیستولی به زیر 90 پس از تزریق اسمولول
    زمان پمپ > 120 دقیقه
    زمان کلامپ آئورت > 90 دقیقه
    مرگ بیمار حین عمل
    The patients are allocated into either the intervention or control group using a non-stratified block randomization method to keep an even randomization ratio of (1:1). Random Allocation Software is used by our expert analytics to determine the list and group of patients. He is blinded to the selection process and pre- and post-operative assessments. The block size will be equal and is set to 2, the sufficient and estimated sample size will be 300, then the allocation code is set to sequential. The analytics will use the output of software to determine the sequence and allocation of patients. Then each code is written on a non-transparent envelope and a paper is put in it in which the intervention or control is written on the paper. The series of the envelope will be according to the software's list and they will keep in a large box with a locker. The analytics has the key for the box and this box will be kept in his room which the analytics has its only key and has no windows. As the patients enrolled in the study sequentially, the analytics use the designated envelope.
    بیماران با استفاده از روش تصادفی بلوک بدون لایه بندی به دو گروه مداخله یا گروه کنترل تقسیم خواهند شد تا نسبت تصادفی یکنواخت (1:1) حفظ شود. متخصص آمار مرکز که نسبت به طرح و فرآیند انتخاب بیماران آن آگاهی نداشته از نرم افزار تولیدکننده توالی تصادفی (Random Allocation Software) برای تعیین گروه ها استفاده خواهد کرد. برای کار با این نرم افزار سایز هر بلوک مساوی و برابر 2 در نظر گرفته شد همچنین جهت کدهای تخصیص یافته به بیماران از حالت ترتیبی (sequential) استفاده می شود. سپس حجم نمونه به عنوان 170 انتخاب می گردد و از خروجی نرم افزار جهت ترتیب و گروه بیماران استفاده خواهد شد. پس از مشخص شدن لیست گروه بندی بیماران، کد بیماران بر روی پاکتهای نامه غیرشفاف نوشته خواهد شد و داخل آن برگه ای حاوی گروه مداخله یا کنترل نوشته می شود و همه ی 300 پاکتهای نامه در جعبه ی مخصوص قفل داری جهت نگهداری گذاشته خواهد شد و در اتاق مخصوص آنالیزور مرکز که کلید آن دست خود وی می باشد و هیچ پنجره ای روبه بیرون ندارد نگهداری می شود. از پاکتهای نامه به همان ترتیبی که بیماران به نوبت برای عمل مراجعه می کنند، استفاده خواهد شد.
    In this study, the patient, nurse and drug instructor are not aware of the patient grouping.The surgeon, anesthesiologist and a researcher are aware of this grouping.
    All of the involved investigators and researchers, participants, principle surgeon, technician of cardiopulmonary bypass machine, anesthesiologist, and other operation room staff will not know which A or B is intervention or placebo group. Only the pharaceutical company which manufacture the ampule which is contaning the active drug or steril normal saline knows that.
    در این مطالعه بیمار, پرستار تزریق کننده دارو و فرد مسئول جمع آوری اطلاعات در رابطه با گروه بندی بیمار کور نگه داشته می شوند.جراح , متخصص بی هوشی و فرد محقق از این گروه بندی اطلاع دارند.
    همه محققین درگیر در طرح ، شرکت کنندگان (بیماران) ، جراح اصلی طرح ، تکنسین دستگاه بای پس قلبی-ریوی ، متخصص بیهوشی و سایر کارکنان اتاق عمل در مورد گروه A و B که دقیقا به کدام گروه مداخله یا دارونما تعلق می گیرد نخواهند دانست. فقط شرکت دارویی سازننده خواهد دانست.

  • Primary outcomes

    #1
    Increase rate of biochemical markers of myocardial injury contain Troponin,Cpk MB and LDH
    Average of cardiac biomarkers Troponin I, CK-MB and LDH
    میزان افزایش بیومارکرهای شیمیایی آسیب میوکارد از قبیل تروپونین, CPK MB و LDH
    میانگین بیومارکرهای شیمیایی آسیب میوکارد از قبیل تروپونین, CK MB و LDH
    اندازه گیری بیومارکرهای شیمیایی آسیب میوکارد قبل و 12,24و48 ساعت پس از عمل
    اندازه گیری بیومارکرهای شیمیایی آسیب میوکارد 12-24-48 ساعت پس از عمل

  • Secondary outcomes

    #1
    Frequency of ventricular fibrillation during the first rhythm after arrest with cardioplegia
    Frequency of ventricular fibrillation during the heart re-beat
    فراوانی فیبریلاسیون بطنی در زمان اولین ریتم پس از ارست با کاردیوپلژی
    فراوانی فیبریلاسیون بطنی در زمان اولین ریتم
    Cardiac arrest period with cardioplegia
    After unclamping the aorta
    زمان ایجاد وقفه قلبی با کاردیوپلژی
    پس از باز کردن کلامپ آئورت
    #2
    Duration of admission to the intensive care unit
    hours of ICU stay
    Number of hospital admissions days in post-operative care unit
    After the surgery
    تعداد روز بستری بیمار در بخش مراقبت های ویژه پس از عمل
    پس از عمل
    Follow patient
    hours documented in the charts
    پیگیری بیمار
    مدت ساعت بستری ثبت شده در پرونده بیمارستانی
    #3
    empty
    Left ventricular ejection fraction at one week after the surgery
    empty
    کسر خروج بطن چپ در 1 هفته پس از عمل
    empty
    One week after the surgery
    empty
    1 هفته پس از عمل
    empty
    Echocardiography
    empty
    اکوکاردیوگرافی

  • Intervention groups

    #1
    N/A
    Treatment - Drugs
    Intervention group: Patients in this group undergo routine operation following induction of anesthesia and insertion of central venous and arterial lines. after cannulation , when patient is ready for cardiopulmonary bypass, the osmolol hydrochloride (100mg / 10cc) dose of 2mg / kg of patient's weight through the central venous catheter is given as Plows are injected. In case of non-impairment of hemodynamic conditions, the patient undergoes a bypass after 5 minutes. After the aortic clamp in the cardioplegia line, osmolol inject during cardioplegia is injected at a dose of 1 mg per kg body weight. Other steps are routinely performed and the patient is monitored for one week.
    The intervention group received esmolol hydrochloride (as 100 mg/10 ml vial, ESOCARD, SAMARTH life sciences PVT. LTD pharmaceutical Co. INDIA) during the operation twice. First, as a 2 mg/kg in central venous catheter just before starting the CPB. After 5 minutes, if the hemodynamic status was remained stable, the patient was put on CPB. Half of the first dose (1 mg/kg) was then infused with the cardioplegic solution after aortic cross-clamping. This dose was repeated for the next doses of the cardioplegic solution during the surgery.
    گروه مداخله: بیماران این گروه پس از القای بی هوشی و تعبیه لاین های وریدی مرکزی و شریانی ,مراحل عمل بصورت روتین انجام می گیرد. در زمانی که کانولاسیون وریدی در دهلیز راست و شریانی در شریان آئورت انجام می گیرد و بیمار آماده بای پس قلبی ریوی می شود داروی اسمولول هیدروکلرید (100mg/10cc) به میزان 2 میلی گرم به ازای هرکیلوگرم وزن بیمار از طریق کاتتر ورید مرکزی به صورت بلوس تزریق می گردد. در صورت عدم اختلال در شرایط همودینامیک بیمار پس از 5 دقیقه بیمار وارد بای پس می شود. پس از کلامپ آئورت در لاین کاردیوپلژی داروی اسمولول حین تزریق کاردیوپلژی این بار به میزان 1 میلی گرم به ازای هرکیلوگرم وزن بیمار تزریق می شود. سایر مراحل عمل بصورت روتین انجام می گردد و بیمار به مدت یک هفته تحت نظر قرار می گیرد.بیومارکرهای قلبی طی 12و24 و 48 ساعت پس از عمل اندازه گیری می شود.مدت اقامت بیماران در بخش مراقبتهای ویژه و بیمارستان اندازه گیری و مقایسه می شود. کسر تخلیه ای قبل و بعد عمل به وسیله اکوکاردیوگرافی اندازه گیری و ثبت می شود.
    گروه مداخله: بیماران این گروه پس از القای بی هوشی و تعبیه لاین های وریدی مرکزی و شریانی ,مراحل عمل بصورت روتین انجام می گیرد. در زمانی که کانولاسیون وریدی در دهلیز راست و شریانی در شریان آئورت انجام می گیرد و بیمار آماده بای پس قلبی ریوی می شود داروی اسمولول هیدروکلرید (100mg/10cc) به میزان 2 میلی گرم به ازای هرکیلوگرم وزن بیمار از طریق کاتتر ورید مرکزی به صورت بلوس تزریق می گردد. در صورت عدم اختلال در شرایط همودینامیک بیمار پس از 5 دقیقه بیمار وارد بای پس می شود. پس از کلامپ آئورت در لاین کاردیوپلژی داروی اسمولول حین تزریق کاردیوپلژی این بار به میزان 1 میلی گرم به ازای هرکیلوگرم وزن بیمار تزریق می شود.
    #2
    empty
    Placebo
    empty
    Control group: The control group received the same volume of normal saline (10 mL) from an exact vial (manufactured in the Afachemi Pharmaceutical Co. IRAN).
    empty
    گروه کنترل: به همان حجم مساوی از ویالهای شبیه به داروی اصلی، نرمال سالین قابل تزریق می گیرد.

  • Sponsors / Funding sources

    #1
    50
    100

Protocol summary

Study aim
Use of esmolol in the cardioplegic solution for reducing myocardial injury in patients with CABG
Design
randomized double-blinded placebo-controled clinical trial
Settings and conduct
Chamran Heart Complex of Isfahan Univerdsity of Medical Sciences
Participants/Inclusion and exclusion criteria
Having surgery just by coronary artery bypass Left ventricular Ejection fraction between 45-60% Left ventricle end diastole Diameter (LVEDD) less than 60 mm pump time less than 180 minutes Cross Clamp Aorta time less than 90 minutes
Intervention groups
esmolol in the cardioplegic solution for the intervention group and the routine cardioplegic solution for the control group.
Main outcome variables
Faster healing in patients undergoing cardiac surgery

General information

Reason for update
The trial protocol has been updated due to the investigator's wishes in order to improve the quality of trial design and conduction methodology.
Acronym
IRCT registration information
IRCT registration number: IRCT20180428039456N1
Registration date: 2019-07-26, 1398/05/04
Registration timing: registered_while_recruiting

Last update: 2020-12-08, 1399/09/18
Update count: 3
Registration date
2019-07-26, 1398/05/04
Registrant information
Name
Ehsan Rangraz
Name of organization / entity
Country
Iran (Islamic Republic of)
Phone
+98 31 3521 1312
Email address
ehsanrangraz@yahoo.com
Recruitment status
Recruitment complete
Funding source
Expected recruitment start date
2018-06-22, 1397/04/01
Expected recruitment end date
2018-09-23, 1397/07/01
Actual recruitment start date
2018-08-23, 1397/06/01
Actual recruitment end date
2020-06-21, 1399/04/01
Trial completion date
2020-08-22, 1399/06/01
Scientific title
The effect of Esmolol before cardioplegia and as a combination in cardioplegia on biochemical markers of myocardial injury in patients undergoing coronary artery bypass graft surgery
Public title
The effect of Esmolol before cardioplegia and as a combination in cardioplegia on biochemical markers of myocardial injury in patients undergoing coronary artery bypass graft surgery
Purpose
Supportive
Inclusion/Exclusion criteria
Inclusion criteria:
Having surgery just by coronary artery bypass Left ventricular Ejection fraction between 45-60% Left ventricle end diastole Diameter (LVEDD) less than 60 mm Pump time less than 180 minutes Cross Clamp Aorta time less than 90 minutes
Exclusion criteria:
History of previously inappropriate reaction to Esmolol Prescribing Esmolol over the past 30 days Emergency operation Participate in other studies any confirmed arrhythmia or consuming any anti-arrhythmic agents severe systemic diseases (including any pulmonary, hepatic, renal, and musculoskeletal diseases or immune system illnesses) diabetic patients consuming any oral hypoglycemic agents reduction of heart rate to less than 50 beats per minute or systolic blood pressure to less than 90 mmHg when injecting esmolol during the surgery pumping time > 120 minutes aortic cross-clamping > 90 minutes intra-operative patient’s death
Age
No age limit
Gender
Both
Phase
3
Groups that have been masked
  • Participant
  • Care provider
  • Investigator
  • Outcome assessor
Sample size
Target sample size: 300
Actual sample size reached: 265
Randomization (investigator's opinion)
Randomized
Randomization description
The patients are allocated into either the intervention or control group using a non-stratified block randomization method to keep an even randomization ratio of (1:1). Random Allocation Software is used by our expert analytics to determine the list and group of patients. He is blinded to the selection process and pre- and post-operative assessments. The block size will be equal and is set to 2, the sufficient and estimated sample size will be 300, then the allocation code is set to sequential. The analytics will use the output of software to determine the sequence and allocation of patients. Then each code is written on a non-transparent envelope and a paper is put in it in which the intervention or control is written on the paper. The series of the envelope will be according to the software's list and they will keep in a large box with a locker. The analytics has the key for the box and this box will be kept in his room which the analytics has its only key and has no windows. As the patients enrolled in the study sequentially, the analytics use the designated envelope.
Blinding (investigator's opinion)
Double blinded
Blinding description
All of the involved investigators and researchers, participants, principle surgeon, technician of cardiopulmonary bypass machine, anesthesiologist, and other operation room staff will not know which A or B is intervention or placebo group. Only the pharaceutical company which manufacture the ampule which is contaning the active drug or steril normal saline knows that.
Placebo
Used
Assignment
Parallel
Other design features

Secondary Ids

empty

Ethics committees

1

Ethics committee
Name of ethics committee
Ethics committee of isfahan university of Medical sciences
Street address
Hezar jerib Ave,isfahan university of Medical sciences
City
isfahan
Province
Isfehan
Postal code
7346181746
Approval date
2019-03-03, 1397/12/12
Ethics committee reference number
IR.MUI.MED.REC.1397.290

Health conditions studied

1

Description of health condition studied
coronary Artery disease
ICD-10 code
I25.1
ICD-10 code description
Atherosclerotic heart disease of native coronary artery

Primary outcomes

1

Description
Average of cardiac biomarkers Troponin I, CK-MB and LDH
Timepoint
Measurement of biochemical markers of myocardial injury before and 12, 24 and 48 hours after surgery
Method of measurement
Patient blood samples and laboratory measurements

Secondary outcomes

1

Description
Frequency of ventricular fibrillation during the heart re-beat
Timepoint
After unclamping the aorta
Method of measurement
Electrocardiogram

2

Description
hours of ICU stay
Timepoint
After the surgery
Method of measurement
hours documented in the charts

3

Description
Duration of patient admission after surgery in hospital
Timepoint
Number of hospital admission days in the post-operative
Method of measurement
Follow patient

4

Description
Need for inotropic drugs
Timepoint
Check the number of inotropes used
Method of measurement
Follow patient

5

Description
Left ventricular ejection fraction at one week after the surgery
Timepoint
One week after the surgery
Method of measurement
Echocardiography

Intervention groups

1

Description
The intervention group received esmolol hydrochloride (as 100 mg/10 ml vial, ESOCARD, SAMARTH life sciences PVT. LTD pharmaceutical Co. INDIA) during the operation twice. First, as a 2 mg/kg in central venous catheter just before starting the CPB. After 5 minutes, if the hemodynamic status was remained stable, the patient was put on CPB. Half of the first dose (1 mg/kg) was then infused with the cardioplegic solution after aortic cross-clamping. This dose was repeated for the next doses of the cardioplegic solution during the surgery.
Category
Treatment - Drugs

2

Description
Control group: The control group received the same volume of normal saline (10 mL) from an exact vial (manufactured in the Afachemi Pharmaceutical Co. IRAN).
Category
Placebo

Recruitment centers

1

Recruitment center
Name of recruitment center
Chamran hospital
Full name of responsible person
Ehsan Rangraz
Street address
Chamran Hospital, Salman farsi Ave , Isfahan
City
Isfahan
Province
Isfehan
Postal code
8156166764
Phone
+98 31 3260 0961
Email
EhsanRangraz@yahoo.COM

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Esfahan University of Medical Sciences
Full name of responsible person
Ehsan Rangraz
Street address
Isfahan univ.medical science Azadi
City
Isfahan
Province
Isfehan
Postal code
8156166764
Phone
+98 31 3521 1312
Email
EhsanRangraz@yahoo.com
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Esfahan University of Medical Sciences
Proportion provided by this source
100
Public or private sector
Public
Domestic or foreign origin
Domestic
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
Academic

Person responsible for general inquiries

Contact
Name of organization / entity
Esfahan University of Medical Sciences
Full name of responsible person
Mehran Shahzamani
Position
Associate Professor
Latest degree
Subspecialist
Other areas of specialty/work
Cardiology
Street address
Chamran Hospital, Salman farsi Ave , Isfahan
City
isfahan
Province
Isfehan
Postal code
7346181746
Phone
+98 31 3260 0961
Email
drshahzamani@yahoo.com

Person responsible for scientific inquiries

Contact
Name of organization / entity
Esfahan University of Medical Sciences
Full name of responsible person
Mehran Shahzamani
Position
Associate professor
Latest degree
Subspecialist
Other areas of specialty/work
Cardiology
Street address
Chamran Hospital, Salman farsi Ave , Isfahan
City
Isfahan
Province
Isfehan
Postal code
7346181746
Phone
+98 31 3260 0961
Email
drshahzamani@yahoo.com

Person responsible for updating data

Contact
Name of organization / entity
Esfahan University of Medical Sciences
Full name of responsible person
Ehsan Rangraz
Position
Master of science
Latest degree
Master
Other areas of specialty/work
Cardiology
Street address
Chamran Hospital, Salman farsi Ave , Isfahan
City
Isfahan
Province
Isfehan
Postal code
8156166764
Phone
+98 31 3524 3409
Email
Ehsanrangraz@yahoo.com

Sharing plan

Deidentified Individual Participant Data Set (IPD)
Undecided - It is not yet known if there will be a plan to make this available
Study Protocol
Undecided - It is not yet known if there will be a plan to make this available
Statistical Analysis Plan
Undecided - It is not yet known if there will be a plan to make this available
Informed Consent Form
Undecided - It is not yet known if there will be a plan to make this available
Clinical Study Report
Undecided - It is not yet known if there will be a plan to make this available
Analytic Code
Undecided - It is not yet known if there will be a plan to make this available
Data Dictionary
Undecided - It is not yet known if there will be a plan to make this available
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