[en] Coordinated experiments from several devices are reported advancing the understanding and extrapolation of Neoclassical Tearing Mode (NTM) physics for ITER. Strong falls in onset β thresholds are found for the most serious mode, the m/n = 2 /1 NTM, as co-injected torque is reduced, both in conventional and spherical tokamaks. Interestingly, thresholds continue to fall as counter rotation increases. Analysis of mode behaviour suggests this dependence most likely arises from modification to Δ', rather than variations in coupling to other MHD or ion polarisation currents. Encouragingly, no evidence of increased error field sensitivity is found at lower rotation, in contrast to what might be expected theoretically. ρ* scaling studies indicate a fall in metastable β thresholds for the 2/1 NTM with ρ*, indicating ITER will operate deeply into the metastable regime, in which modes can be excited. Studies in hybrid scenarios, which rely on high β access, appear to confirm that this trend carries over to mode onset thresholds in some devices. However the trend is not borne out in cross-machine comparisons, indicating that other profile effects (current, rotation, changes fast particle content) can be beneficial in raising mode thresholds. Further studies have extended previous databases for the 3/2 NTM towards ITER-relevant parameters, both in terms of rotation and ρ*, confirming falls in β thresholds with these parameters. However, progress has been made in controlling thresholds for this mode with extension of current drive sawtooth control techniques to high fast particle, high beta, ITER-like ideal sawtooth regimes and real time control. Results are confronted against theoretical models, with implications and opportunities for ITER identified. Analysis suggests that while overall global parameter trends are adverse for ITER, the most serious concerns for baseline scenario, arising from sawtooth triggered NTMs, may be ameliorated by core MHD control techniques. For higher β scenarios, it appears that falls in NTM thresholds as ITER-like parameters are approached may be limited, and may be beneficially influenced with profile control techniques. This is consistent with theoretical studies indicating that current profile shape can play a crucial role in governing NTM stability. (author)