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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>(2) EVALUATE NEW FORMS OF RADIOTHERAPY DELIVERY AND TEST NEW SYSTEMIC AND TARGETED THERAPIES IN CONJUNCTION WITH RADIOTHERAPY IN THE CONTEXT OF CLINICAL RESEARCH. (3) PARTICIPATE AS ONE OF THREE MEMBER ORGANIZATIONS IN THE ACTIVITIES OF NRG ONCOLOGY FOUNDATION. (4) DEVELOP AND CONDUCT PRACTICE-CHANGING CLINICAL TRIALS FOR THE NCI NATIONAL CLINICAL TRIAL NETWORK (NCTN) THROUGH RTOG'S MEMBERSHIP IN NRG ONCOLOGY. (5) DEVELOP AND CONDUCT INDUSTRY-SUPPORTED CLINICAL TRIALS THAT ARE IMPORTANT TO RTOG'S RESEARCH MISSION. (6) PROVIDE FUNDING FOR BASIC, CLINICAL, AND TRANSLATIONAL INVESTIGATORS TO COLLABORATE WITH RTOG IN THE DEVELOPMENT OF BOTH BIOLOGIC AND BIOPHYSICAL TARGETED THERAPIES. (7) SUPPORT YOUNG INVESTIGATORS FROM MANY DISCIPLINES WITHIN THE RTOG RESEARCH ENTERPRISE THROUGH FELLOWSHIPS AND VARIOUS AWARDS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>NO BOARD COMMITTEES HAVE BEEN FORMED AS OF THIS TIME.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM. THE RETURN WILL THEN BE REVIEWED BY THE SECRETARY-TREASURER AND APPROVED. THE RETURN WILL THEN BE MADE AVAILABLE FOR ALL DIRECTORS PRIOR TO ITS FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY APPLIES TO BOARD MEMBERS, OFFICERS, COMMITTEE MEMBERS, STAFF, VOLUNTEERS, CLINICAL INVESTIGATORS AND ALL OTHERS REPRESENTING OR ACTING ON BEHALF OF RTOG. IN CONNECTION WITH ANY ACTUAL OR POSSIBLE CONFLICT OF INTEREST, AN INTERESTED PERSON MUST DISCLOSE THE EXISTENCE OF THE FINANCIAL INTEREST. THE DISCLOSURE IS REVIEWED BY THE RTOG ADMINISTRATOR WITH GUIDANCE FROM RTOG LEGAL COUNSEL. ANY IDENTIFIED FINANCIAL CONFLICT OF INTEREST (FCOI) WILL BE REVIEWED WITH THE AFFECTED INVESTIGATOR AND, IF APPLICABLE, REPORTED TO NIH WITHIN 60 DAYS OF DISCOVERY AND ACTIONS TO MANAGE, REDUCE OR ELIMINATE THE FCOI WILL BE TAKEN BY THE ADMINISTRATOR OF THE RESEARCH ACTIVITY INVOLVED AND INCLUDED IN THE REPORT TO NATIONAL INSTITUTES OF HEALTH (NIH). MANAGEMENT OF AN IDENTIFIED FCOI WILL INCLUDE THE DEVELOPMENT AND IMPLEMENTATION OF A MANAGEMENT PLAN AND, IF NECESSARY, A RETROSPECTIVE REVIEW AND MITIGATION REPORT.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE MADE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>SUB-AWARD PROFESSIONAL SERVICES: PROGRAM SERVICE EXPENSES 382,428. TOTAL EXPENSES 382,428. STUDY TEAM SERVICES: MANAGEMENT AND GENERAL EXPENSES 287,435. TOTAL EXPENSES 287,435. CONTRACTED RT QA REVIEWS: PROGRAM SERVICE EXPENSES 8,240. TOTAL EXPENSES 8,240. BIOSPECIMEN BANK: MANAGEMENT AND GENERAL EXPENSES 111,321. TOTAL EXPENSES 111,321. OTHER PROFESSIONAL AND CONTRACTED SERVICES: MANAGEMENT AND GENERAL EXPENSES 62,500. TOTAL EXPENSES 62,500.</ExplanationTxt>
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