CD47 CD47 molecule
ENSG00000196776 · protein coding · Open Targets profile
Adhesive protein that mediates cell-to-cell interactions (PubMed:11509594, PubMed:15383453). Acts as a receptor for thrombospondin THBS1 and as modulator of integrin signaling through the activation of heterotrimeric G proteins (PubMed:19004835, PubMed:7691831, PubMed:8550562). Involved in signal transduction, cardiovascular homeostasis, inflammation, apoptosis, angiogenesis, cellular self-renewal, and immunoregulation (PubMed:11509594, PubMed:15383453, PubMed:19004835, PubMed:27742621, PubMed:32679764, PubMed:7691831, PubMed:8550562). Plays a role in modulating pulmonary endothelin EDN1 signaling (PubMed:27742621). Modulates nitrous oxide (NO) signaling, in response to THBS1, hence playing a role as a pressor agent, supporting blood pressure (By similarity). Plays an important role in memory formation and synaptic plasticity in the hippocampus (By similarity). Receptor for SIRPA, binding to which prevents maturation of immature dendritic cells and inhibits cytokine production by mature dendritic cells (PubMed:11509594). Interaction with SIRPG mediates cell-cell adhesion, enhances superantigen-dependent T-cell-mediated proliferation and costimulates T-cell activation (PubMed:15383453). Positively modulates FAS-dependent apoptosis in T-cells, perhaps by enhancing FAS clustering (By similarity). Plays a role in suppressing angiogenesis and may be involved in metabolic dysregulation during normal aging (PubMed:32679764). In response to THBS1, negatively modulates wound healing (By similarity). Inhibits stem cell self- renewal, in response to THBS1, probably by regulation of the stem cell transcription factors POU5F1/OCT4, SOX2, MYC/c-Myc and KLF4 (By similarity). May play a role in membrane transport and/or integrin dependent signal transduction (PubMed:7691831). May prevent premature elimination of red blood cells (By similarity). {ECO:0000250|UniProtKB:P97829, ECO:0000250|UniProtKB:Q61735, ECO:0000269|PubMed:11509594, ECO:0000269|PubMed:15383453, ECO:0000269|PubMed:19004835, ECO:0000269|PubMed:27742621, ECO:0000269|PubMed:32679764, ECO:0000269|PubMed:7691831, ECO:0000269|PubMed:8550562}.
Each band is a group of drugs. It runs from the kind of drug on the left to the furthest stage that drug has reached in any disease on the right. Thicker bands mean more drugs.
Approved bands are highlighted. Withdrawn means the drug was pulled from the market or from development. A combined phase counts as the later one (Phase 1/2 is shown as Phase 2). Hover a band for the drug names. Source: Open Targets Platform, fetched live.
Each row is a cancer, strongest overall evidence first. The two dots show how strong the inherited (germline) and tumour-mutation (somatic) evidence is; the line between them is the gap.
Scores run from 0 (no evidence) to 1 (strongest). A missing dot at 0 means Open Targets holds no evidence of that kind. Source: Open Targets Platform, fetched live.
Tractability
- Antibody
- Advanced Clinical, UniProt loc high conf, GO CC high conf, UniProt SigP or TMHMM, Human Protein Atlas loc
- PROTAC
- Database Ubiquitination, Half-life Data, Small Molecule Binder
- Other modalities
- Advanced Clinical
gnomAD loss of function constraint: o/e 0.24657000601291656 (upper bound 0.4081299901008606). Low values mean loss of function is poorly tolerated, a safety flag for inhibition.
Who runs trials of these drugs
Principal investigators and study chairs on 43 registry trials, updated in the last three years, of the most advanced drugs against CD47 (magrolimab, evorpacept), ranked by Phase 2+ trials. Live from ClinicalTrials.gov.
- Jospeh A CalifanoUniversity of California, San Diego · 1 of 1 trials Phase 2+
- Michael S KhodadoustCity of Hope Comprehensive Cancer Center LAO · 1 of 1 trials Phase 2+
- Naval G DaverM.D. Anderson Cancer Center · 1 of 1 trials Phase 2+
- Paolo StratiM.D. Anderson Cancer Center · 1 of 1 trials Phase 2+
- Paula R PohlmannM.D. Anderson Cancer Center · 1 of 1 trials Phase 2+
- Ranjana H AdvaniStanford Universiy · 1 of 1 trials Phase 2+
- Renata FerrarottoM.D. Anderson Cancer Center · 1 of 1 trials Phase 2+
- Wells MessersmithUniversity of Colorado, Denver · 1 of 1 trials Phase 2+
- Bernhard KissUniverstary Hospital Insel Bern · 0 of 1 trials Phase 2+
- Haider S MahdiUniversity of Pittsburgh Cancer Institute LAO · 0 of 1 trials Phase 2+
- Howard ColmanUniversity of Utah · 0 of 1 trials Phase 2+
- Mark J RoschewskiNational Cancer Institute (NCI) · 0 of 1 trials Phase 2+
- Monzr M Al MalkiCity of Hope Medical Center · 0 of 1 trials Phase 2+
- Nicholas WhippleUniversity of Utah · 0 of 1 trials Phase 2+
- Robbie G MajznerCancer Immunotherapy Trials Network · 0 of 1 trials Phase 2+
Registry trials of magrolimab, evorpacept updated in the last three years, counted by the country group of their listed sites. A trial with sites in several groups counts in each; 18 of 38 have all sites in one country.
Site counts are not patients per country, and trials registered only outside ClinicalTrials.gov are not covered. Where sites are is a fact about the record, not a judgement of its quality. Europe is the EU and EEA, the UK and Switzerland. 5 trials list no sites and are left out. Source: ClinicalTrials.gov, fetched live.
28 trials of drugs against CD47 were stopped early
Terminated, withdrawn and suspended interventional trials of magrolimab, evorpacept, newest update first, live from ClinicalTrials.gov. Each reason is quoted exactly as the registry gives it; we do not sort reasons into safety, efficacy or business. Dates are the last registry update. Showing the 25 most recent of 28.
- terminated · 2026-09-03 · University of Colorado, Denver · Evorpacept (ALX148)“Accrual was terminated due to safety concerns”
- terminated · 2026-08-03 · Hoffmann-La Roche · Magrolimab (Hu5F9-G4)“Study was closed early as the sponsor decided not to continue development of certain treatment combinations.”
- terminated · 2026-06-30 · Ranjana Advani · Magrolimab“Discontinuation of magrolimab development”
- terminated · 2026-06-30 · National Cancer Institute (NCI) · Magrolimab“Drug supply issues”
- terminated · 2026-04-23 · M.D. Anderson Cancer Center · Magrolimab“75% > Participants”
- terminated · 2025-11-19 · Gilead Sciences · Magrolimab“Sponsor decision to terminate study”
- terminated · 2025-11-04 · Gilead Sciences · Magrolimab“Sponsor decision to terminate study.”
- terminated · 2025-10-22 · M.D. Anderson Cancer Center · Magrolimab“Slow Accrual”
- terminated · 2025-10-16 · National Cancer Institute (NCI) · Magrolimab“Drug supply issues”
- terminated · 2025-07-20 · ALX Oncology Inc. · evorpacept“While intended to be a Phase 1/2 clinical study, the study did not proceed to Phase 2.”
- terminated · 2025-07-01 · Gilead Sciences · Magrolimab“Sponsor decision to terminate study”
- terminated · 2025-05-29 · Gilead Sciences · Magrolimab“Study terminated early due to the magrolimab program discontinuation.”
- terminated · 2025-05-08 · Gilead Sciences · Magrolimab“Sponsor decision to terminate study”
- terminated · 2025-05-02 · Gilead Sciences · Magrolimab“This study was terminated early due to the Sponsor's decision to discontinue development of the investigational drug and close the program.”
- terminated · 2025-04-04 · Gilead Sciences · Magrolimab“Study was terminated due to futility”
- terminated · 2025-03-20 · Gilead Sciences · Magrolimab“Sponsor decision to terminate the study.”
- terminated · 2025-02-05 · Gilead Sciences · Magrolimab“Study discontinued due to futility.”
- terminated · 2025-01-17 · Gilead Sciences · Magrolimab“This study has been discontinued due to futility based on the results of a planned analysis of the ENHANCE trial.”
- terminated · 2024-11-27 · ALX Oncology Inc. · evorpacept“While intended to be a Phase 1/2 clinical study, the study never moved forward to Phase 2.”
- terminated · 2024-10-02 · Astex Pharmaceuticals, Inc. · Magrolimab“Termination due to discontinuation of magrolimab development in MDS.”
- withdrawn · 2024-09-19 · City of Hope Medical Center · Magrolimab“Withdrawn -ctms”
- withdrawn · 2024-07-05 · Insel Gruppe AG, University Hospital Bern · Magrolimab“IMP security Issues reported by Sponsor”
- terminated · 2024-06-27 · Gilead Sciences · Magrolimab“Study discontinued due to futility based on a planned analysis”
- withdrawn · 2024-05-02 · National Cancer Institute (NCI) · Magrolimab“No subjects enrolled in the study”
- withdrawn · 2024-04-11 · Novartis Pharmaceuticals · Magrolimab“waiting for update from Study Lead”
Paediatric incentives and obligations for CD47's drugs
For magrolimab, evorpacept: what EMA and FDA publish about paediatric plans, orphan status and pediatric approvals, and how many registered studies take children. Each line is a yes, no or not published fact from the record linked under it; none of it is a forecast.
- FDA pediatric target list: yes · CD47 is on the list. Membership alone neither requires nor waives a pediatric study.Rule: Target is on FDA's Pediatric Molecular Target List (relevant targets). Source: FDA Pediatric Molecular Target List (Listed as February 2026 on the FDA Pediatric Oncology page; the file served is 9.7.22_the_relevant_molecular_target_list.xlsx, whose Summary of Changes sheet is headed 'SEPTEMBER 2022 UPDATE' (footnote date 2022-09-01)), 2026-11-11
- EU paediatric investigation plan: yes · EMEA-002819-PIP01-20-M01 (Magrolimab, Treatment of acute myeloid leukaemia;Treatment of myelodysplastic syndromes, including juvenile myelomonocytic leukemia): PM: decision on the application for modification of an agreed PIP, 14 Jul 2023Rule: An EMA PIP decision (agreement, modification or waiver) lists the drug as its active substance, exact name. Source: EMA EMEA-002819-PIP01-20-M01, 2026-11-11
- EU orphan designation: yes · EU/3/20/2288 withdrawn 26 Jun 2020: Treatment of myelodysplastic syndromes; EU/3/15/1582 withdrawn 11 Nov 2015: Treatment of acute myeloid leukaemia; EU/3/23/2787 positive 20 Jun 2023: Treatment of gastric cancerRule: An EU orphan designation lists the drug as its active substance (exact name) or belongs to a medicine that does; withdrawn and expired designations are listed with their status. Source: EMA data download (dated snapshot), 2026-11-11
- Authorised in the EU: no · EMA lists no centrally authorised medicine of magrolimab, evorpaceptRule: An EMA medicine record lists the drug as its active substance or INN, exact name; national-only authorisations are not in this file. Source: EMA data download (dated snapshot), 2026-11-11
- FDA orphan designation: not published · FDA's orphan designation database turns away automated requests, so this app does not read it; search it by hand at the linkRule: Would be: an FDA orphan designation names the drug. Source: FDA orphan designations search
- FDA pediatric oncology approval: no · FDA's table lists no pediatric approval of magrolimab, evorpaceptRule: FDA's Pediatric Oncology Drug Approvals table names the drug. Source: FDA Pediatric Oncology Drug Approvals (content current as of 2026-03-03), 2026-11-11
- Registered studies open to children: yes · 2 interventional studies of magrolimab, evorpacept include patients under 18; 0 are recruiting, not yet recruiting or activeRule: The registry's age group includes Child (birth to 17 years), which also counts studies that set no minimum age. Source: ClinicalTrials.gov search, 2026-11-11
Rare pediatric disease voucher. FDA, content current as of 29 Apr 2026: “As of February 3, 2026, enactment of the Consolidated Appropriations Act, 2026, the rare pediatric disease PRV program will sunset after September 30, 2029. FDA may not award any PRVs under this program after September 30, 2029.” Voucher sale prices are not shown here; they appear only as company-reported news. FDA: Rare Pediatric Disease Designation and Priority Review Voucher Programs
All 2 drugs and clinical candidates as a table
Each drug, stage and indication links to its Open Targets record, where the trials and approvals behind it are listed. Salt forms (for example a mesylate) are listed as Open Targets records them, as separate entries.