The document discusses the key aspects and purpose of an investigator brochure (IB). The IB is prepared by the sponsor of a clinical trial to provide essential information about the investigational product to investigators. It contains a comprehensive summary of relevant non-clinical and clinical data, including information on pharmacology, toxicology, safety and efficacy from previous human trials. The goal is to inform investigators of risks and monitoring needs for the safe and proper conduct of the clinical trial. The IB is an important document that is reviewed annually and made available to investigators and ethics committees.

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DR.G.K.SHARMA PHARMD, MDIA, CPPM, CGCPh, CCP,
DCMS, PGDPh

2. 1. Investigator brochure is a collection of the clinical and non-clinical data on the
investigational product that are relevant to the study of the product in human
subject.
2. IB is a comprehensive document summarizing the information about the
investigational product obtained during a clinical trials.
3. The information should be presented in a short, simple, objective.
4. IB is prepared by the sponsor who also controls the distribution of the document.
5. The sponsor is responsible for ensuring that an up-todate IB is made available to
the investigator and investigators are responsible for providing the up-to-date IB
to the responsible IRB/IEC.
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3.  Its purpose is to provide Information to the Investigators and others involved in the trial
such as the dose, dose frequency/interval, methods of administration: and safety monitoring
procedures.
 IB contains Summary of Data and Guidance for the Investigator:
1. Provide the investigator with a clear understanding of the possible risks and adverse reactions
, details of tests, observations, and precautions that may be needed for a clinical trial.
2. The information should be based on the available physical, chemical , pharmaceutical
,pharmacological , toxicological, and clinical information on the investigational product.
3. Should also provide treatment of possible over dose and adverse drug reactions.
4. The IB should be reviewed annually.
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4.  The IB should include:
 Title page
 This should provide the sponsor ‘s name, the identity of each investigational product(i.e.,
research no. ,chemical or approved generic name, trade name and the release date).
 It also suggested that an edition no. ,reference no. and date of edition. For example….
 TITLE PAGE (Example)
 SPONSOR'S NAME
 Product:
 Research Number:
 Name(s): Chemical, Generic (if approved)
 Trade Name(s) (if legally permissible and desired by the sponsor)
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5. INVESTIGATOR'S BROCHURE
 Edition Number:
 Release Date:
 Replaces Previous Edition Number:
 Date
Confidentiality statement
 The sponsor may include a statement instructing the investigator to treat the IB.
Contents of the Investigator’s Brochure
• The IB should contain the following sections..
• Table of Contents
• An example of the Table of Contents is given in
• Appendix 2
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6. Summary
 A brief summary should be given highlighting the significant physical, chemical,
pharmaceutical, pharmacological, toxicological, pharmacokinetic, metabolic, and clinical
information of the investigational product.
Introduction
 Contains the chemical name (and generic and trade name(s) when approved) of the IP, all
active ingredients, the IP(s) pharmacological class and its expected position within this
class (e.g., advantages), the rationale for performing research with the IP(s), and the
anticipated prophylactic, therapeutic, or diagnostic indication(s). General approach to be
followed in evaluating the IP.
Description of IP
 A brief summary should be given of the relevant physical, chemical, and
pharmaceutical properties.
 description of the formulation(s) to be used, including excipient, should be provided and
justified if clinically relevant.
 Instructions for the storage and handling of the dosage form(s) should also be given.
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7.  The results of all relevant nonclinical pharmacology, toxicology, pharmacokinetic, and
investigational product metabolism studies should be provided in summary form.
 The information provided may include
 Species tested;
 Number and sex of animals in each group;
 Unit dose (e.g., milligram/kilogram (mg/kg));
 Dose interval;
 Route of administration;
 Duration of dosing;
 Information on systemic distribution;
 Duration of post-exposure follow-up;
 Results, including the following aspects:
 - Nature and frequency of pharmacological or toxic effects;
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 - Severity or intensity of pharmacological
or toxic effects;
 - Time to onset of effects;
 - Reversibility of effects;
 - Duration of effects;
 - Dose response.

8. Nonclinical Pharmacology
 A summary of the pharmacological aspects of the investigational product and, where appropriate,
its significant metabolites studied in animals should be included.
Pharmacokinetics and Product Metabolism in Animals
 A summary of the pharmacokinetics and biological transformation and disposition (getting a
drug into its appropriate position in the body and in an appropriate concentration) of the
investigational product in all species studied should be given.
Toxicology
 The study of the adverse effects of chemicals on animals)
 A summary of the toxicological effects found in relevant studies conducted in different animal species should
be described under the following headings where appropriate:
1. Single dose;
2. Repeated dose;
3. Carcinogenicity;
4. Special studies (e.g., irritancy and sensitization);
5. Reproductive toxicity;
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9. Effects in Humans
 A thorough discussion of the known effects of the investigational product(s) in humans should
be provided, including information on pharmacokinetics, metabolism, pharmacodynamics,
dose response, safety, efficacy, and other pharmacological activities. Where possible, a
summary of each completed clinical trial should be provided.
Pharmacokinetics and Product Metabolism in Humans
1. A summary of information on the pharmacokinetics of the investigational product(s) should
be presented, including the following, if available:
2. Pharmacokinetics (including metabolism, as appropriate, and absorption, plasma protein
binding, distribution, and elimination).
3. Bioavailability of the investigational product (absolute, where possible, and/or relative)
using a reference dosage form.
4. Population subgroups (e.g., gender, age, and impaired organ function).
5. Interactions (e.g., product-product interactions and effects of food).
6. Other pharmacokinetic data (e.g., results of population studies performed within clinical
trial(s))
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10. Safety and Efficacy
 A summary of information should be provided about the investigational product's (including
metabolites, where appropriate) safety , pharmacodynamics, efficacy, and dose response
that were obtained from preceding trials in humans (healthy volunteers and/or patients).
Marketing Experience
1. The IB should identify countries where the investigational product has been marketed or
approved.
2. The IB should also identify all the countries where the investigational product did not receive
approval/registration for marketing or was withdrawn from marketing/registration.
Summary of Data and Guidance for the Investigator
1. This section should provide an overall discussion of the nonclinical and clinical data of IP.
2. IB provide the investigator a clear understanding of The possible risk
3. Adverse reaction
4. Observation & precaution needed for the clinical trial.
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