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CONSENT REGISTRATION FORM (for parents/guardians)
(Control Families' Form)
North American Wilms Tumor Study (NAWTS)
AEPI10N4 Molecular and Genomic Epidemiology of Wilms Tumor

Rayjean J. Hung, Ph.D., M.S. – Principal Investigator
Paul E. Grundy, M.D.
Funding Source:
The funding of this research is from the Ontario Ministry of Health and Long-term Care,
March of Dimes Foundation, Cancer Care Ontario, and the International Agency of Research on Cancer.


You are being asked to participate in a research study. Please read this explanation about the study and its risks and benefits before you decide if you would like to take part. You should take as much time as you need to make your decision. You should ask the study doctor or study staff to explain anything that you do not understand and make sure that all of your questions have been answered before signing this consent form. Before you make your decision, feel free to talk about this study with anyone you wish. Participation in this study is voluntary.


While we know that genetic and environmental factors have a role in cancer development, there is still very little known about the causes of cancer in infants and children. The purpose of this study is to obtain health and lifestyle information about healthy children who do not have cancer and their parents, and to compare this to information from children with cancer in order to identify the risk factors for childhood cancer. Although cancer in children is rare, research on childhood cancer could have an impact on the years and quality of life of affected children. This research study is being conducted by the Samuel Lunenfeld Research Institute of Mount Sinai Hospital, the Hospital for Sick Children and the International Agency for Research on Cancer, a research institute of the World Health Organization. The overall goal of this research is to find possible causes, including genetic or environmental factors and medical conditions that may increase the risk of Wilms tumor. Wilms tumor is a type of cancer in the kidney that occurs in very young children. By possible causes, we mean things in the environment, genetics, or certain medical conditions that may be related to the development of embryonal tumors.

Your participation would involve a telephone interview (with each parent/guardian separately). A total of 2200 families will be included in this research internationally. About 840 will come from North America.


If you decide to allow your child to participate in this study the following will occur:

1) An interviewer will administer a questionnaire to each parent/guardian on the phone at a time of their choice. The interviews will take about 1.5 hours each and they consist of questions related to lifestyle, environment and health history.
2) If you are willing to donate a saliva sample of your child, we will ask you to obtain some saliva sample of your child by following instructions on a self collection kit. If your child is too young to spit into the collection kit, you will follow the assisted procedure by using a small sponge or a soft bristle to brush from your child's mouth and placed into a small cup.
3) Any information obtained will only be used for the purposes of this study. Information which may identify you or your child will be destroyed within 5 years after the study is complete.


The saliva samples from your child will be shipped to a laboratory at Mount Sinai Hospital for storage and analysis. These samples will be used for biochemical and genetic analysis in this study, and they will be tested for genetic and molecular characteristics that may be related to developing cancer or protecting against it. Any material not immediately used will continue to be stored to be used in the future to help scientists learn more about environment, genetic changes and health. By agreeing to participate in the biological sampling component of this study, you are granting consent now for future uses of these samples that relate to the purposes of this study. None of these samples will be tested for illegal drugs. All results will remain anonymous.


The findings of the study will also be available to the public through publications in scientific journals. There will be no cost to you for participating in this study, other than your time. If you initially decide to give permission to have biologic samples stored for future research purposes, but later change your mind, whatever remains of your biologic samples will then be destroyed.


During the saliva collection, your child may feel uneasy or bothered. No other physical discomfort is foreseen from the saliva collection.


You (your child) will not benefit directly from participating in this study. However, information learned from this study may help other children diagnosed with cancer and help to prevent the development of cancer in the future. Your participation is very important to the success of this scientific research.


If you agree to join this study, the study doctor and his/her study team will look at your (or your child’s) personal health information and collect only the information they need for the study. Personal health information is any information that could be used to identify you and includes your (your child’s):.

The information that is collected for the study will be kept in a locked and secure area by the study doctor for 5 years after the end of the study and last publication. Only the study team or the people or groups listed below will be allowed to look at your records.

The following people may come to the hospital to look at the study records and at your personal health information to check that the information collected for the study is correct and to make sure the study followed proper laws and guidelines:

All information collected during this study, including your and your child’s personal health information, will be kept confidential and will not be shared with anyone outside the study unless required by law. For example, the law could make us give information about you if a child has been abused or if the court orders us to give them the study papers. Any information about you or your child that is sent out of the hospital will have a code and will not show your name or address, or any information that directly identifies you or your child. You or your child will not be named in any reports, publications, or presentations that may come from this study.

If you decide to leave the study, the information about you and your child that was collected before you left the study will still be used. No new information will be collected without your permission.


To thank you for your time and participation, you will be provided with a $25 USD gift card at the completion of the study.


You and your child’s participation in this study are voluntary. You may decide not to be in this study, or to be in the study now and then change your mind later. If your child is able to provide assent to participate, this will also be required from him/her. You and your child may leave the study at any time without affecting your care with your doctor. You may refuse to answer any question you do not want to answer.

We will give you new information that is learned during the study that might affect your decision to stay in the study.


As this is an observational study, it is very unlikely that there will be any harm or injury caused by study participation. However, as a standard policy, if you (your child) become ill, injured or harmed as a result of taking part in this study, you (your child) will receive care. The reasonable costs of such care will be covered for any injury, illness or harm that is directly a result of being in this study. In no way does signing this consent form waive your legal rights nor does it relieve the investigators, sponsors or involved institutions from their legal and professional responsibilities. You do not give up any of your legal rights by signing this consent form.


If you have any questions, concerns or would like to speak to the study team for any reason, please contact the Research Assistant, Laura Adams at 416 586-4800 x8118 or Adams@Lunenfeld.ca or the Principal Investigator, Dr. Rayjean Hung at Rayjean.Hung@Lunenfeld.ca.

If you have any questions about your rights as a research participant or have concerns about this study, call Ronald Heslegrave, Ph.D., Chair of the Mount Sinai Hospital Research Ethics Board (REB) or the Research Ethics office number at 1-416-586-4875. The REB is a group of people who oversee the ethical conduct of research studies. These people are not part of the study team. Everything that you discuss will be kept confidential.


The investigator for the study, Dr. Rayjean Hung, and the research team members have no conflicts of interest to declare.

Statement of Consent

(Control Families' Form)

Only one parent is required to consent to participate for your child. However, if possible, we ask that both parents indicate their level of participation.

Please enter the following:

Your Name

Your Email Address

Relationship to Child

Child’s Last Name as indicated
on his/her Birth Certificate

If you received an invitation letter in the mail,
please check for the screening ID and enter it here

Please provide the best phone number to reach you with

Month and Year of
Birth of Index Child

M M / Y Y Y Y

Please check ONE of the two boxes below to complete this form:


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